Light guide plate type light source assembly
By using the clamping structure of the ramp fixed seat and the movable seat, as well as the design of the locking bolts, the problem of high replacement cost after the light guide plate is solved, and the light guide plate can be easily installed and disassembled. The design of the slot and the fixing bolts facilitates the replacement of the LED light source, and improves the stability and light uniformity of the light source assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN L&H MEASURE & CONTROL CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-15
AI Technical Summary
In existing light guide plate type light source assemblies, the replacement cost is high after the light guide plate is damaged, and it is difficult to disassemble and install conveniently.
The light guide plate is assembled and disassembled by using a clamping structure with a ramp fixed seat and a movable seat, combined with locking bolts and threaded connections; the LED light source is locked and fixed by slots and fixing bolts for easy replacement; the support feet at the bottom of the housing can be unfolded to increase stability.
It enables convenient installation and removal of the light guide plate, reduces replacement costs, facilitates rapid replacement of LED light sources, and improves the stability and light uniformity of the light source assembly.
Smart Images

Figure CN224246005U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of light guide plate application technology, specifically a light guide plate type light source assembly. Background Technology
[0002] Light guide plates can transform point and line light sources into surface light sources. Due to their ultra-thin and lightweight nature, uniform light distribution, high efficiency and energy saving, and stability and durability, they are increasingly being used in display screens, devices, and lighting fixtures. Light guide plate lighting assemblies typically use LEDs as the light source. The light from the light source is introduced through the light guide plate, transmitted within the light guide plate, and finally discharged from the light-emitting surface of the light guide plate through high-conductivity light guide points.
[0003] In existing light guide plate type light source assemblies, the light guide plates are usually connected with glue. When the light guide plate is damaged, the entire assembly needs to be replaced, which is costly. Therefore, a new type of light guide plate type light source assembly is proposed, which can both fix the light guide plate and facilitate its disassembly and replacement. Utility Model Content
[0004] The purpose of this invention is to provide a light guide plate type light source assembly to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A light guide plate type light source assembly includes a housing. A ramp fixing seat is fixedly connected to one side of the housing. A ramp movable seat adapted to the ramp fixing seat is provided. A light guide plate is clamped between the ramp movable seat and the inner wall of the housing. The ramp movable seat slides in contact with the ramp fixing seat. Locking bolts are symmetrically threaded on the ramp fixing seat. The ramp fixing seat has a threaded hole for threaded connection of the locking bolt. The locking bolt moves through the ramp movable seat. The ramp movable seat has a waist groove for the locking bolt to pass through and move. The outer diameter of the locking bolt is adapted to the width of the waist groove. A light-emitting component is provided on the inner wall of the housing and below the light guide plate.
[0007] As a further embodiment of this utility model: the light-emitting component includes an inclined reflector and an LED light source, the LED light source being installed inside the housing and connected to a power cord.
[0008] As a further embodiment of this utility model: the reflector is fixedly connected to the bottom inner side of the housing, the housing has a communication port corresponding to the reflector, and a slot is fixedly connected to the communication port of the housing, and the LED light source is inserted into the slot and is compatible with the slot.
[0009] As a further improvement of this utility model: the top of the slot is threaded with a fixing bolt, which is inserted into the slot and abuts against the housing of the LED light source. The top of the slot is provided with a threaded hole for threaded connection of the fixing bolt.
[0010] As a further improvement of this utility model, the bottom of the shell has two staggered contraction cavities, each of which is provided with a support foot that is adapted to it.
[0011] As a further improvement of this utility model: one end of the support foot is rotatably connected to the housing, and the other end of the support foot is arc-shaped.
[0012] As a further improvement of this utility model: the arc-shaped edge of the support foot is concentric with the rotation center, and the arc-shaped end of the support foot extends out of the contraction cavity. The arc-shaped end of the support foot extends out of the contraction cavity, which can conveniently squeeze the support foot to push it out of the contraction cavity and unfold it.
[0013] As a further improvement of this invention: anti-slip pads are fixedly connected to both the inclined movable seat and the corresponding inner wall of the housing, thereby increasing the stability of the light guide plate being clamped. A chamfer is provided on one side of the inclined movable seat corresponding to the light guide plate, which facilitates automatic avoidance of the inclined movable seat during the insertion and compression of the light guide plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This utility model uses the locking bolts to compress the inclined movable seat, guides the light guide plate through the inclined surface of the inclined fixed seat, and clamps and fixes the light guide plate through the inclined movable seat, forming an assembled installation, which facilitates the installation, disassembly and replacement of the light guide plate.
[0016] 2. This utility model has an LED light source on one side of the housing, and the light is reflected onto the light guide plate by an inclined reflector, so that a small area of light source can be reflected to form a large area of projection.
[0017] 3. The LED light source of this utility model is assembled and inserted into the slot and locked in place by fixing bolts, which makes it easy to disassemble and replace the LED light source.
[0018] 4. This utility model has two staggered support feet at the bottom of the housing. By spreading the support feet outward, the support area of the bottom surface of the housing can be increased, thereby improving the stability of the light source assembly. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of a light guide plate type light source assembly.
[0020] Figure 2 This is a top-view perspective view of a light guide plate type light source assembly.
[0021] Figure 3 This is a front cross-sectional view of a light guide plate type light source assembly.
[0022] Figure 4 This is a side sectional view of a light guide plate type light source assembly.
[0023] In the diagram: 1. Housing; 2. Slope fixed seat; 3. Slope movable seat; 4. Light guide plate; 5. Locking bolt; 6. Waist groove; 7. Light-emitting component; 8. Reflector; 9. LED light source; 10. Slot; 11. Fixing bolt; 12. Shrink cavity; 13. Support foot; 14. Anti-slip pad. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1-4 In this embodiment of the utility model, a light guide plate type light source assembly includes a housing 1. A ramp fixing seat 2 is fixedly connected to one side of the inside of the housing 1. A ramp movable seat 3 adapted to the ramp fixing seat 2 is provided on the ramp fixing seat 2. A light guide plate 4 is held between the ramp movable seat 3 and the inner wall of the housing 1. The inclined surface of the ramp movable seat 3 slides in contact with the inclined surface of the ramp fixing seat 2. A locking bolt 5 is symmetrically threaded on the ramp fixing seat 2. A threaded hole for threaded connection of the locking bolt 5 is opened on the ramp fixing seat 2. The locking bolt 5 moves through the ramp movable seat 3. A waist groove 6 for the locking bolt 5 to pass through and move is opened on the ramp movable seat 3. The outer diameter of the locking bolt 5 is adapted to the width of the waist groove 6. A light-emitting component 7 is provided on the inner wall of the housing 1 and below the light guide plate 4.
[0026] By tightening the locking bolt 5, the inclined movable seat 3 is squeezed, guided by the inclined surface of the inclined fixed seat 2, and the light guide plate 4 is clamped and fixed by the inclined movable seat 3, forming an assembled installation, which facilitates the installation, disassembly and replacement of the light guide plate 4.
[0027] The light-emitting component 7 includes a reflector 8 that is tilted and an LED light source 9. The LED light source 9 is installed inside the housing and is connected to a power cord.
[0028] The reflector 8 is fixedly connected to the bottom inner side of the housing 1. The housing 1 has a communication port corresponding to the reflector 8. The housing 1 has a slot 10 fixedly connected to the communication port. The LED light source 9 is inserted into the slot 10 and is compatible with the slot 10.
[0029] An LED light source 9 is set on one side of the housing 1, and the light is reflected onto the light guide plate 4 by a tilted reflector 8, so that a large area of projection can be formed by reflecting a small area of light source.
[0030] The top of the slot 10 is threaded with a fixing bolt 11. The fixing bolt 11 is inserted into the slot 10 and abuts against the housing of the LED light source 9. The top of the slot 10 is provided with a threaded hole for threaded connection of the fixing bolt 11.
[0031] The LED light source 9 is assembled and plugged into the slot 10 and locked in place by the fixing bolt 11, which allows for easy disassembly and replacement of the LED light source 9.
[0032] The bottom of the housing 1 has two staggered contraction cavities 12, each of which is provided with a matching support foot 13.
[0033] One end of the support foot 13 is rotatably connected to the housing 1, and the other end of the support foot 13 is arc-shaped.
[0034] The arc-shaped edge of the support foot 13 is concentric with the rotation center. The arc-shaped end of the support foot 13 extends out of the contraction cavity 12. The arc-shaped end of the support foot 13 extends out of the contraction cavity 12, which can easily squeeze the support foot 13 to push it out of the contraction cavity 12 and unfold it.
[0035] Two support feet 13 are staggered at the bottom of the housing 1. The support area of the bottom surface of the housing 1 can be increased by extending the support feet 13 outward, thereby improving the stability of the light source assembly.
[0036] Anti-slip pads 14 are fixedly connected to the inner walls of the inclined movable seat 3 and the corresponding side of the housing 1. The anti-slip pads 14 increase the stability of the light guide plate 4 when it is clamped. The inclined movable seat 3 has a chamfer on the side corresponding to the light guide plate 4. The chamfer facilitates the automatic avoidance of the light guide plate 4 when it is inserted into the inclined movable seat 3.
[0037] The working principle of this utility model is as follows:
[0038] In use, insert the light guide plate 4 into the gap between the inclined movable seat 3 and the housing 1, and rotate the locking bolt 5. By locking the bolt 5, the inclined movable seat 3 is squeezed. Guided by the inclined surface of the inclined fixed seat 2, the inclined movable seat 3 clamps and fixes the light guide plate 4. At this time, insert the LED light source 9 into the slot 10 and lock it with the fixing bolt 11. Then rotate the support foot 13 outward, so that the inner part of the shrink cavity 12 is unscrewed. At this time, the housing 1 can be placed on the table. Then connect the LED light source 9 to the power supply and start it. At this time, the LED light source 9 emits light, which is reflected by the reflector 8 and directed onto the light guide plate 4.
[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A light guide plate type light source assembly, comprising a housing (1), characterized in that: A ramp fixing seat (2) is fixedly connected to one side of the inner side of the housing (1). A ramp movable seat (3) adapted to the ramp fixing seat (2) is provided on the ramp fixing seat (2). A light guide plate (4) is held between the ramp movable seat (3) and the inner wall of the housing (1). The inclined surface of the ramp movable seat (3) slides in contact with the inclined surface of the ramp fixing seat (2). A locking bolt (5) is symmetrically threaded on the ramp fixing seat (2). The locking bolt (5) moves through the ramp movable seat (3). A waist groove (6) for the locking bolt (5) to pass through and move is provided on the ramp movable seat (3). A light-emitting component (7) is provided on the inner wall of the housing (1) and below the light guide plate (4).
2. The light guide plate type light source assembly according to claim 1, characterized in that: The light-emitting component (7) includes a reflector (8) arranged at an angle and an LED light source (9). The LED light source (9) is installed inside the housing and connected to a power cord.
3. The light guide plate type light source assembly according to claim 2, characterized in that: The reflector (8) is fixedly connected to the bottom inner side of the housing (1). The housing (1) has a communication port corresponding to the reflector (8). The housing (1) has a slot (10) fixedly connected to the communication port. The LED light source (9) is inserted into the slot (10) and is compatible with the slot (10).
4. The light guide plate type light source assembly according to claim 3, characterized in that: The top of the slot (10) is threaded with a fixing bolt (11), which is inserted into the slot (10) and abuts against the housing of the LED light source (9).
5. The light guide plate type light source assembly according to claim 1, characterized in that: The bottom of the housing (1) has two staggered contraction cavities (12), each of which is provided with a support foot (13) that is adapted to it.
6. The light guide plate type light source assembly according to claim 5, characterized in that: One end of the support foot (13) is rotatably connected to the housing (1), and the other end of the support foot (13) is arc-shaped.
7. A light guide plate type light source assembly according to claim 5, characterized in that: The arc-shaped edge of the support foot (13) is concentric with the rotation center, and the arc-shaped end of the support foot (13) extends out of the contraction cavity (12).
8. The light guide plate type light source assembly according to claim 1, characterized in that: The ramp movable seat (3) and the inner wall of the corresponding side of the housing (1) are both fixedly connected with anti-slip pads (14), and the ramp movable seat (3) has a chamfer on the side corresponding to the light guide plate (4).