TV backlight structure with small-area PCB

Abstract

The utility model discloses a television (TV) backlight structure with a small-area printed circuit board (PCB), and relates to the technical field of TV backlight structures. The light-emitting components are fixedly connected in the TV back shell and are distributed in the TV back shell at equal intervals in a staggered manner; the heat dissipation assembly is used for preventing the light-emitting assemblies from being overheated, and the heat dissipation assembly is fixedly connected to one sides of the light-emitting assemblies. According to the TV back shell, the light-emitting assemblies are distributed in the TV back shell at equal intervals in a staggered mode, light complementation can be effectively achieved, meanwhile, uniform illumination in the TV back shell is guaranteed, and the display effect is improved; the length of a signal transmission line is reduced due to the shortened length of a single light-emitting assembly, signal attenuation and interference are reduced, backlight stability and picture display quality are improved, and meanwhile voltage loss and energy consumption are reduced.

Description

Technical Field

[0001] This utility model relates to the field of TV backlight structure technology, and in particular to a TV backlight structure with a small area PCB board. Background Technology

[0002] In the development of modern television technology, the TV backlight structure is a key component that determines the display effect, and the optimization of its performance and design is of paramount importance.

[0003] In existing TV backlight structures, a large-area PCB board design is commonly used. This traditional design has several drawbacks. First, a large PCB board means higher raw material costs, and the manufacturing process is more complex, further increasing production costs. Second, due to the large PCB board area and longer signal transmission lines, this not only causes signal attenuation and interference, affecting backlight stability and image display quality, but also leads to increased voltage loss, requiring higher input voltage to maintain the normal operation of the LED board, thus increasing energy consumption. Furthermore, a large PCB board presents challenges in heat dissipation; the heat generated by the LEDs cannot be dissipated quickly, easily causing overheating, accelerating LED aging, reducing their lifespan, and ultimately affecting the reliability and stability of the entire TV backlight structure. Therefore, there is an urgent need for a TV backlight structure with a small-area PCB board to solve these problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a TV backlight structure with a small-area PCB board. Its advantages lie in the fact that by distributing the light-emitting components at equal intervals and in a staggered manner within the TV back cover, it effectively achieves complementary lighting while ensuring uniform illumination inside the TV back cover, thus improving the display effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A TV backlight structure with a small-area PCB board includes:

[0007] TV back cover;

[0008] A light-emitting component is fixedly connected inside the TV back cover, and the light-emitting component is distributed at equal intervals and alternately inside the TV back cover;

[0009] A heat dissipation component is used to prevent the light-emitting component from overheating, and the heat dissipation component is fixedly connected to one side of the light-emitting component.

[0010] The above technical solution involves setting up equally spaced and staggered light-emitting components inside the TV back cover, which can effectively achieve complementary lighting, ensure uniform illumination inside the TV back cover, improve display effect, shorten the length of a single set of light-emitting components, reduce the length of signal transmission lines, reduce signal attenuation and interference, improve backlight stability and picture display quality, reduce voltage loss, and reduce energy consumption.

[0011] The present invention is further configured such that the light-emitting component includes an aluminum substrate, an LED bead is disposed on the top of the aluminum substrate, a connecting wire is disposed on the top of the aluminum substrate, and the aluminum substrate is electrically connected to another aluminum substrate through the connecting wire.

[0012] Through the above technical solution, the aluminum substrate is electrically connected to another aluminum substrate through connecting wires, which can effectively shorten the length of the connecting wires, reduce the heating efficiency of the connecting wires, and at the same time, the LED beads can be lit through the connecting wires.

[0013] The present invention is further configured such that both ends of the aluminum substrate are fixedly connected to fixing ears, and the top of the fixing ears is provided with a first round hole, and the aluminum substrate is fixedly connected to the bottom inner wall of the TV back cover through the fixing ears.

[0014] Through the above technical solution: the aluminum substrate is fixedly connected to the bottom inner wall of the TV back cover by the fixing ears. The aluminum substrate is fixed to the bottom inner wall of the TV back cover by the fixing ears, thus realizing the stable installation of the light-emitting component inside the TV back cover.

[0015] The present invention is further configured such that the heat dissipation assembly includes a heat sink fixedly connected to the outer wall of one side of the aluminum substrate, a reinforcing rod fixedly connected to one side of the heat sink, and a positioning plate fixedly connected to the end of the reinforcing rod away from the heat sink.

[0016] Through the above technical solutions: the heat sink can conduct and dissipate the heat generated by the LED beads on the aluminum substrate, and the reinforcing rod plays a supporting and reinforcing role.

[0017] The present invention is further configured such that a second circular hole is provided at both ends of the positioning plate, and the center of the second circular hole is the same as that of the first circular hole.

[0018] The above technical solution involves using a second circular hole at each end of the positioning plate with the same center as the first circular hole, which facilitates the fixing of the positioning plate to the aluminum substrate via a connector, ensuring structural stability.

[0019] The present invention is further configured such that one side of the outer wall of the heat sink is coated with silicone resin, and the heat sink is fixedly connected to one side of the outer wall of the aluminum substrate by the silicone resin.

[0020] The above technical solution utilizes the excellent thermal conductivity of silicone resin to help quickly transfer heat from the aluminum substrate to the heat sink.

[0021] The present invention is further configured such that the positioning plate is inclined inside the TV back cover, and the two ends of the positioning plate are respectively fixedly connected to the two aluminum substrates.

[0022] The above technical solutions effectively enhance the overall structural stability through the positioning plate, while also creating conditions for the subsequent installation of the flow guiding components.

[0023] The present invention is further provided that the top outer wall of the positioning plate is provided with a flow guiding component for guiding airflow, and the cross-section of the flow guiding component is S-shaped.

[0024] Through the above technical solution: the cross-section of the airflow guiding component is S-shaped, and the airflow guiding component with an S-shaped cross-section is set on the top outer wall of the positioning plate, which can guide the airflow inside the TV back shell, change the airflow direction, and improve the heat dissipation efficiency.

[0025] The present invention is further configured such that the flow guiding component includes a first arc-shaped plate and a second arc-shaped plate, the first arc-shaped plate and the second arc-shaped plate being close to two aluminum substrates respectively.

[0026] Through the above technical solution, the airflow guiding component consists of a first arc-shaped plate and a second arc-shaped plate respectively close to the two aluminum substrates. The two work together to more accurately guide the airflow to concentrate on blowing on the heat sink, accelerate the airflow speed, and enhance the heat dissipation effect.

[0027] The beneficial effects of this utility model are as follows:

[0028] 1. In this utility model, by equidistantly and alternately distributing the light-emitting components inside the TV back shell, complementary lighting can be effectively achieved, while ensuring uniform illumination inside the TV back shell, thus improving the display effect. Moreover, the shortened length of a single set of light-emitting components reduces the length of the signal transmission line, reduces signal attenuation and interference, improves backlight stability and picture display quality, and reduces voltage loss and energy consumption.

[0029] 2. In this utility model, by replacing a set of light boards in the prior art with multiple sets of light-emitting components, the area of ​​the PCB (aluminum substrate) can be effectively reduced, and the cost of raw materials can be lowered. At the same time, the staggered distribution of light-emitting components shortens the length of a single set, further reducing costs. This solves the problem of excessively high costs caused by traditional large-area PCB boards from multiple perspectives.

[0030] 3. In this utility model, the heat sink in the heat dissipation component is tightly connected to the aluminum substrate through silicone resin, which can quickly transfer and dissipate the heat generated by the LED beads into the surrounding air. The positioning plate is set at an angle and connected to the aluminum substrate at both ends, which creates the installation conditions for the airflow guiding component. The unique S-shaped structure of the airflow guiding component is composed of a first arc plate and a second arc plate, which can guide the airflow to concentrate and blow on the heat sink, accelerate the airflow speed, greatly improve the heat dissipation efficiency, effectively solve the problem of heat dissipation difficulties of traditional large-area PCB boards, extend the service life of LED beads, and improve the reliability and stability of the entire TV backlight structure. Attached Figure Description

[0031] Figure 1 A schematic diagram showing the distribution of light-emitting components inside the TV back cover in a TV backlight structure with a small-area PCB board, as proposed in this utility model.

[0032] Figure 2 This is an enlarged schematic diagram of a light-emitting component with a small-area PCB board for a TV backlight structure proposed in this utility model.

[0033] Figure 3 This utility model proposes a TV backlight structure with a small-area PCB board. Figure 2 Enlarged structural diagram at point A;

[0034] Figure 4 This is a schematic diagram of Embodiment 2 of a TV backlight structure with a small-area PCB board proposed in this utility model.

[0035] In the figure: 1. TV back cover; 2. Light-emitting component; 201. Aluminum substrate; 202. Lamp bead; 203. Connecting wire; 204. Fixing ear; 3. Heat dissipation component; 301. Positioning plate; 302. Reinforcing rod; 303. Heat sink; 4. Airflow guiding component; 401. First arc plate; 402. Second arc plate. Detailed Implementation

[0036] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0037] Example 1

[0038] Reference Figures 1-4 A TV backlight structure with a small-area PCB board includes:

[0039] TV back cover 1;

[0040] The light-emitting components 2 are fixedly connected inside the TV back cover 1, and the light-emitting components 2 are distributed at equal intervals inside the TV back cover 1.

[0041] The heat dissipation component 3 is used to prevent the light-emitting component 2 from overheating. The heat dissipation component 3 is fixedly connected to one side of the light-emitting component 2. The light-emitting components 2 are arranged in an equally spaced and staggered manner inside the TV back shell 1, which can effectively achieve complementary lighting, ensure uniform illumination inside the TV back shell 1, improve the display effect, shorten the length of a single group of light-emitting components 2, reduce the length of signal transmission lines, reduce signal attenuation and interference, improve backlight stability and picture display quality, reduce voltage loss, and reduce energy consumption.

[0042] To ensure stable operation of LED 202, refer to... Figure 2 The light-emitting component 2 includes an aluminum substrate 201, an LED bead 202 is disposed on the top of the aluminum substrate 201, and a connecting wire 203 is disposed on the top of the aluminum substrate 201. The aluminum substrate 201 is electrically connected to another aluminum substrate 201 through the connecting wire 203, which can effectively shorten the length of the connecting wire 203, reduce the heating efficiency of the connecting wire 203, and at the same time, the LED bead 202 can be lit through the connecting wire 203.

[0043] To ensure the secure installation of the light-emitting component 2 within the TV back cover 1, refer to... Figure 2 Both ends of the aluminum substrate 201 are fixedly connected with fixing ears 204. The top of the fixing ears 204 is provided with a first round hole. The aluminum substrate 201 is fixedly connected to the bottom inner wall of the TV back cover 1 through the fixing ears 204. The aluminum substrate 201 is fixed to the bottom inner wall of the TV back cover 1 by means of the fixing ears 204, so that the light-emitting component 2 is stably installed in the TV back cover 1.

[0044] In order to improve the heat dissipation effect of the aluminum substrate 201, refer to Figure 3 The heat dissipation component 3 includes a heat sink 303 fixedly connected to the outer wall of one side of the aluminum substrate 201. A reinforcing rod 302 is fixedly connected to one side of the heat sink 303. A positioning plate 301 is fixedly connected to the end of the reinforcing rod 302 away from the heat sink 303. The heat sink 303 can conduct and dissipate the heat generated by the LED beads 202 on the aluminum substrate 201. The reinforcing rod 302 plays a supporting and reinforcing role.

[0045] To facilitate the unified fixing of the positioning plate 301 and the aluminum substrate 201, refer to... Figure 3 The positioning plate 301 has a second circular hole at both ends. The center of the second circular hole is the same as that of the first circular hole. The second circular hole at both ends of the positioning plate 301 has the same center as the first circular hole, which makes it convenient to fix the positioning plate 301 to the aluminum substrate 201 through the connector, so as to ensure the stability of the structure.

[0046] To further improve the heat dissipation efficiency of the aluminum substrate 201, refer to Figure 3The outer wall of one side of the heat sink 303 is coated with silicone resin. The heat sink 303 is fixedly connected to the outer wall of one side of the aluminum substrate 201 by the silicone resin. The good thermal conductivity of the silicone resin helps to quickly transfer the heat of the aluminum substrate 201 to the heat sink 303.

[0047] To ensure the stability of the entire light-emitting component 2 after installation, refer to... Figure 3 The positioning plate 301 is inclined inside the TV back shell 1. The two ends of the positioning plate 301 are fixedly connected to two aluminum substrates 201 respectively. The positioning plate 301 can effectively enhance the overall structural stability and also create conditions for the subsequent installation of the flow guiding component 4.

[0048] Example 2

[0049] Reference Figures 1-4 A TV backlight structure with a small-area PCB board is provided. Compared with embodiment 1, this embodiment also includes a flow guiding component 4 for guiding airflow on the top outer wall of the positioning plate 301. The flow guiding component 4 has an S-shaped cross-section. The flow guiding component 4 with an S-shaped cross-section on the top outer wall of the positioning plate 301 can guide the airflow in the TV back shell 1, change the airflow direction, and improve the heat dissipation efficiency.

[0050] To accelerate airflow and enhance heat dissipation for the light-emitting component 2, refer to Figure 4 The airflow guiding component 4 includes a first arc plate 401 and a second arc plate 402. The first arc plate 401 and the second arc plate 402 are respectively close to the two aluminum substrates 201. The airflow guiding component 4 is composed of the first arc plate 401 and the second arc plate 402 respectively close to the two aluminum substrates 201. The two work together to more accurately guide the airflow to concentrate and blow on the heat sink 303, accelerate the airflow speed, and enhance the heat dissipation effect.

[0051] Working principle: By replacing one set of light panels with multiple sets of light-emitting components 2, the area of ​​the PCB (aluminum substrate 201) in the light-emitting components 2 can be effectively reduced. Simultaneously, the light-emitting components 2 are evenly and staggered inside the TV back cover 1, creating complementary lighting and ensuring uniform illumination within the TV back cover 1. Furthermore, the staggered distribution of the light-emitting components 2 reduces the length of each individual light-emitting component 2, lowering both cost and voltage loss, and significantly improving the overall heat dissipation of the light-emitting components 2.

[0052] When the LED bead 202 is powered on and emits light, it generates heat, at which point the heat dissipation component 3 begins to function. The silicone resin coated on one side of the heat sink 303 adheres tightly to the aluminum substrate 201. The excellent thermal conductivity of the silicone resin allows it to quickly transfer heat from the aluminum substrate 201 to the heat sink 303. The heat sink 303 has a large surface area, increasing the contact area with the air and facilitating heat dissipation into the surrounding air. At the same time, the reinforcing rod 302 provides support and reinforcement, making the heat sink 303 more securely connected to the aluminum substrate 201 and preventing it from shaking or falling off.

[0053] The second circular holes at both ends of the positioning plate 301 have the same center as the first circular holes on the fixing ears 204 of the aluminum substrate 201. By passing bolts or other connectors through these circular holes, the positioning plate 301 can be firmly connected to the aluminum substrate 201. The positioning plate 301 is inclined inside the TV back cover 1 and is fixedly connected to the two aluminum substrates 201 at both ends. This structure not only further enhances the stability of the entire structure, but also creates conditions for the setting of the flow guiding component 4.

[0054] In Embodiment 2, the airflow guiding component 4 disposed on the top outer wall of the positioning plate 301 plays an important role. The airflow guiding component 4 has an S-shaped cross-section and is composed of a first arc plate 401 and a second arc plate 402, which are respectively close to the two aluminum substrates 201. When there is airflow inside the TV back cover 1 (e.g., natural convection generated when the TV is working or fan-assisted convection), the airflow guiding component 4 can guide the airflow along a specific path. The special shape of the first arc plate 401 and the second arc plate 402 makes the airflow more concentrated and blow onto the surface of the heat sink 303 when it passes by, which speeds up the airflow and removes more heat, further improving the heat dissipation efficiency. Therefore, through the coordinated work of the staggered light-emitting component 2, heat dissipation component 3 and airflow guiding component 4, the entire TV backlight structure achieves good lighting effect, low cost and voltage loss, and high heat dissipation performance while realizing the application of small-area PCB board.

[0055] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A TV backlight structure with small area PCB board, characterized in that, include: TV back cover (1); A light-emitting component (2) is fixedly connected inside the TV back cover (1), and the light-emitting component (2) is distributed in an equidistant and staggered manner inside the TV back cover (1); A heat dissipation component (3) for preventing the light-emitting component (2) from overheating, the heat dissipation component (3) being fixedly connected to one side of the light-emitting component (2).

2. The TV backlight structure with small area PCB board according to claim 1, characterized in that, The light-emitting component (2) includes an aluminum substrate (201), with an LED bead (202) disposed on the top of the aluminum substrate (201) and a connecting wire (203) disposed on the top of the aluminum substrate (201). The aluminum substrate (201) is electrically connected to another aluminum substrate (201) through the connecting wire (203).

3. The TV backlight structure with small area PCB board according to claim 2, characterized in that, Both ends of the aluminum substrate (201) are fixedly connected to fixing ears (204). The top of the fixing ears (204) is provided with a first round hole. The aluminum substrate (201) is fixedly connected to the bottom inner wall of the TV back cover (1) through the fixing ears (204).

4. The TV backlight structure with small area PCB board according to claim 3, characterized in that, The heat dissipation assembly (3) includes a heat sink (303) fixedly connected to the outer wall of one side of the aluminum substrate (201), a reinforcing rod (302) fixedly connected to one side of the heat sink (303), and a positioning plate (301) fixedly connected to the end of the reinforcing rod (302) away from the heat sink (303).

5. The TV backlight structure with small area PCB board according to claim 4, characterized in that, The positioning plate (301) has a second circular hole at both ends, and the center of the second circular hole is the same as that of the first circular hole.

6. The TV backlight structure with small area PCB board according to claim 5, characterized in that, The outer wall of one side of the heat sink (303) is coated with silicone resin, and the heat sink (303) is fixedly connected to the outer wall of one side of the aluminum substrate (201) by the silicone resin.

7. The TV backlight structure with small area PCB board according to claim 6, characterized in that, The positioning plate (301) is inclined inside the TV back cover (1), and the two ends of the positioning plate (301) are fixedly connected to the two aluminum substrates (201) respectively.

8. The TV backlight structure with small area PCB board according to claim 7, characterized in that, The top outer wall of the positioning plate (301) is provided with a flow guiding component (4) for guiding airflow, and the cross-section of the flow guiding component (4) is S-shaped.

9. The TV backlight structure with small area PCB board according to claim 8, characterized in that, The flow guiding component (4) includes a first arc plate (401) and a second arc plate (402), with the first arc plate (401) and the second arc plate (402) respectively close to two aluminum substrates (201).

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