A backlight source with good heat dissipation effect
By using copper heat-smoothing plates and wavy flow guide bars in the backlight, the problem of poor heat dissipation of the backlight after long working hours is solved, and the heat dissipation ability and use time are significantly improved.
Patent Information
- Application Number
- CN202420588517.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-03-26
AI Technical Summary
After a long time of operation, the existing backlight source generates heat due to the current of the light-emitting components and electronic components, and the heat cannot be dissipated in time, which affects the continuous use of the backlight source.
A backlight source including a rubber frame, a light guide plate and a light source is designed. The light guide plate is equipped with a copper heat-smooth plate and a wavy flow guide strip. The heat-smooth plate is used for heat conduction, and the flow-smooth plate increases the contact area of the airflow to improve the heat dissipation effect.
Through the design of the thermal conduction plate and flow guide bar, the heat dissipation ability of the backlight source is effectively increased, the continuous use time is extended, and the overall working effect is improved.
Smart Images
Figure CN222734371U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of backlight sources, in particular to a backlight source with good heat dissipation effect. Background Art
[0002] The backlight is a light source located behind the LCD display. Its luminous effect will directly affect the visual effect of the LCD display module. The LCD display itself does not emit light. It displays graphics or the result of its modulation of light.
[0003] The above technical conditions still have defects: the existing backlight source needs to work for a long time, and current will pass through its light-emitting parts and electronic components, which will generate a certain amount of heat over a long period of time. If the heat cannot be dissipated in time, it will affect the continuous use of the backlight source.
[0004] Based on this, the utility model designs a backlight source with good heat dissipation effect to solve the above problems. Utility Model Content
[0005] The purpose of the utility model is to provide a backlight source with good heat dissipation effect to solve the above technical problems.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a backlight source with good heat dissipation effect, comprising a rubber frame, a light guide plate and a light source, the light source is arranged on the light guide plate, a shading plate is arranged on the front side of the rubber frame, a light-enhancing film is arranged on one side of the light-shading plate, a cover plate is arranged on the bottom of the light-shading plate, a circuit line is arranged on one side of the bottom of the rubber frame, one end of the circuit line is connected to a power distribution connector, heat dissipation holes are opened on both sides of the bottom of the rubber frame, four groups of positioning blocks are arranged on the rear side of the rubber frame, a reflective film is arranged on one side of the light guide plate, a diffusion film is arranged on the other side of the light guide plate, a heat conducting plate is arranged on one side of the reflective film, a circuit board is arranged on one side of the bottom of the heat conducting plate, guide strips are arranged on the bottom of the heat conducting plate and above and below the circuit board, and a protective film is arranged on the other side of the heat conducting plate.
[0007] By adopting the above technical solution, the heat generated by the backlight source can be dissipated when it is working, thereby increasing the effect of continuous use.
[0008] Preferably, the heat conducting plate is a copper heat spreader, and the guide strip is wavy.
[0009] By adopting the above technical solution, the heat dissipation capacity can be improved.
[0010] Preferably, the shading plate is bonded to the inner side of the glue frame by means of sealant.
[0011] By adopting the above technical solution, the sealing performance during use is increased.
[0012] Preferably, the inner side of the cover plate is attached to the guide strip.
[0013] By adopting the above technical solution, a plurality of independent spaces are formed inside the housing, so that the heat can be better dissipated when the air flows through the housing.
[0014] Preferably, the position of the heat dissipation hole corresponds to the position of the guide bar.
[0015] By adopting the above technical solution, airflow in and out is facilitated.
[0016] In summary, the present application has the following beneficial technical effects: by setting up a heat conduction plate, the heat dissipation effect of the backlight source can be increased; the heat conduction plate adopts the form of a heat spreader, which can further increase the thermal conductivity effect; finally, by using the set guide strip, the contact area when the airflow passes through can be increased, effectively improving the heat dissipation at the circuit board, thereby increasing the working effect of the backlight source. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0018] Figure 1 Schematic diagram of the overall structure of this embodiment;
[0019] Figure 2 is a schematic diagram of the back structure of this embodiment;
[0020] Figure 3 Schematic diagram of the split structure of this embodiment.
[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0022] 1. Rubber frame; 2. Sunshade; 3. Brightness enhancement film; 4. Cover plate; 5. Circuit line; 6. Power distribution connector; 7. Heat dissipation hole; 8. Positioning block; 9. Light guide plate; 10. Reflective film; 11. Heat conduction plate; 12. Circuit board; 13. Guide strip; 14. Diffusion film; 15. Protective film. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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.
[0024] The following is combined with Figure 1-3 This application is described in further detail.
[0025] Reference Figure 1 , Figure 2 and Figure 3 A backlight source with good heat dissipation effect comprises a plastic frame 1, a light guide plate 9 and a light source, wherein the light source is arranged on the light guide plate 9, a shading plate 2 is arranged on the front side of the plastic frame 1, a light-enhancing film 3 is arranged on one side of the light-shading plate 2, a cover plate 4 is arranged on the bottom of the light-shading plate 2, a circuit line 5 is arranged on one side of the bottom of the plastic frame 1, a power distribution connector 6 is connected to one end of the circuit line 5, heat dissipation holes 7 are opened on both sides of the bottom of the plastic frame 1, four groups of positioning blocks 8 are arranged on the rear side of the plastic frame 1, and a reflective film 1 is arranged on one side of the light guide plate 9. 0, a diffusion film 14 is arranged on the other side of the light guide plate 9, a heat conduction plate 11 is arranged on one side of the reflective film 10, and the heat conduction plate 11 can dissipate the heat generated by the backlight source, thereby increasing the effect of continuous operation of the backlight source, a circuit board 12 is arranged on one side of the bottom of the heat conduction plate 11, and the circuit board 12 supplies power to the light source so that it can generate light, and guide strips 13 are arranged on the bottom of the heat conduction plate 11 and above and below the circuit board 12, and a protective film 15 is arranged on the other side of the heat conduction plate 11.
[0026] Reference Figure 3 The heat conducting plate 11 is a copper heat spreader, which can improve its heat dissipation effect and further increase the use effect of the backlight source. The guide bar 13 is wavy, and the shading plate 2 is bonded to the inner side of the glue frame 1 by a sealant.
[0027] Reference Figure 1 and Figure 3 The inner side of the cover plate 4 is attached to the guide bar 13 , and the position of the heat dissipation hole 7 corresponds to the position of the guide bar 13 .
[0028] The implementation principle of this embodiment is: when in use, the distribution connector 6 is connected to the external power supply, and then the current is transmitted to the circuit board 12 through the circuit line 5, and finally transmitted to the light source, so that the light source can emit light, and the light source is enhanced through the action of the light guide plate 9, the reflective film 10, the light enhancement film 3 and the diffusion film 14, so that good illumination can be performed, and then when the light source is working, more heat will be generated. At this time, the heat is conducted to the heat conduction plate 11. Since the heat conduction plate 11 is a copper heat spreader, the heat can be better conducted. Finally, when the airflow passes through the guide bar 13, its contact area can be increased, thereby increasing the heat dissipation effect.
[0029] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0030] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A backlight source with good heat dissipation effect, comprising a plastic frame (1), a light guide plate (9) and a light source, wherein the light source is arranged on the light guide plate (9), and is characterized in that: The front side of the plastic frame (1) is provided with a shading plate (2), one side of the shading plate (2) is provided with a light-enhancing film (3), the bottom of the shading plate (2) is provided with a cover plate (4), one side of the bottom of the plastic frame (1) is provided with a circuit line (5), one end of the circuit line (5) is connected to a power distribution connector (6), both sides of the bottom of the plastic frame (1) are provided with heat dissipation holes (7), the rear side of the plastic frame (1) is provided with four groups of positioning blocks (8), the guide A reflective film (10) is arranged on one side of the light plate (9), a diffusion film (14) is arranged on the other side of the light guide plate (9), a heat conducting plate (11) is arranged on one side of the reflective film (10), a circuit board (12) is arranged on one side of the bottom of the heat conducting plate (11), guide strips (13) are arranged at the bottom of the heat conducting plate (11) and above and below the circuit board (12), and a protective film (15) is arranged on the other side of the heat conducting plate (11).
2. A backlight source with good heat dissipation effect according to claim 1, characterized in that: The heat conducting plate (11) is a copper heat spreader, and the guide strip (13) is wavy.
3. The backlight source with good heat dissipation effect according to claim 1, characterized in that: The shading plate (2) is bonded to the inner side of the glue frame (1) by means of a sealant.
4. The backlight source with good heat dissipation effect according to claim 1, characterized in that: The inner side of the cover plate (4) is attached to the guide strip (13).
5. The backlight source with good heat dissipation effect according to claim 1, characterized in that: The position of the heat dissipation hole (7) corresponds to the position of the guide strip (13).