A COB light source structure

Abstract

The utility model relates to COB light source technical field discloses a COB light source structure, including the mounting panel, the inside sliding joint of mounting panel has two sliding components, the inside rotation connection of two sliding components has two telescopic links, the outside of sliding component is equipped with the spring, the inside of mounting panel is provided with the heat dissipation board, the top fixed connection of heat dissipation board has the substrate, the top fixed connection of substrate has a plurality of chips, the top of substrate is provided with a plurality of bonding wires, the inside of heat dissipation board is provided with two positive power, the inside of heat dissipation board is provided with two negative power. In the utility model, the spring produces the elastic force, and then the reset of spring drives the sliding axle to reset, and then the heat dissipation board is fixed, and then the buffer and reset adjustment are realized, the external impact influence is alleviated, and the component damage risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of COB light source technology, and in particular to a COB light source structure. Background Technology

[0002] COB light source structure involves directly bonding multiple LED chips onto the same substrate, and achieving electrical connection between the chips and the substrate through bonding wires. The chips and bonding wires are covered with phosphor-containing fluorescent adhesive and protective adhesive. At the same time, the substrate itself has an additional heat dissipation structure to perform heat dissipation function, forming an integrated, high-brightness and uniform light-emitting module.

[0003] The COB light source structure conducts external current through the circuit on the substrate to the bonding wires, and then the bonding wires introduce the current into multiple LED chips integrated on the substrate. After the chips are excited by electrical energy, they emit light of a specific wavelength. The heat generated when the chips are working is quickly conducted and dissipated through the substrate and heat dissipation structure to ensure stable operation of the light source.

[0004] In existing technologies, some COB light source structures, due to the lack of substrate fixation during use, cause components such as chips and bonding wires to detach or break due to vibration or shaking during transportation, thus affecting the normal use of the light source. To address this issue, a new COB light source structure is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a COB light source structure, which aims to improve the problem in some existing COB light source structures where, during use, the chip and other components are forced to fall off due to external impacts caused by the substrate not being fixed, thus affecting the light emission of the light source.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A COB light source structure includes a mounting plate, with two sliding components slidably connected inside the mounting plate. Each of the two sliding components is rotatably connected to two telescopic rods. A spring is sleeved on the outside of the sliding components. A heat sink is disposed inside the mounting plate, and a base plate is fixedly connected to the top of the heat sink.

[0008] As a further description of the above technical solution:

[0009] Multiple chips are fixedly connected to the top of the substrate, and multiple bonding wires are provided on the top of the substrate. Two positive power supplies and two negative power supplies are provided inside the heat sink.

[0010] As a further description of the above technical solution:

[0011] The two sliding components include two sliding shafts, the two sliding shafts being externally slidably connected to the interior of the mounting plate, and the two sliding shafts being externally slidably connected to the top of the heat sink.

[0012] As a further description of the above technical solution:

[0013] Each of the two sliding shafts has a support plate fixedly connected to its far end, and two telescopic rods are rotatably connected inside the two support plates respectively.

[0014] As a further description of the above technical solution:

[0015] Springs are fitted around the outside of both sliding shafts, and the near ends of the two springs are respectively fixedly connected to the front and rear ends of the mounting plate.

[0016] As a further description of the above technical solution:

[0017] The external ends of the multiple telescopic rods are respectively fixedly connected to the front and rear ends of the mounting plate, and the far ends of the two springs are respectively fixedly connected to the near ends of the two support plates.

[0018] As a further description of the above technical solution:

[0019] The external parts of the multiple bonding wires are respectively fixedly connected to the internal parts of the multiple chips, and the positive power supply and the negative power supply are symmetrically distributed;

[0020] As a further description of the above technical solution:

[0021] One end of the bonding wire is fixedly connected to the inside of the positive power supply, and the other end of the bonding wire is fixedly connected to the inside of the negative power supply.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the sliding shaft is driven to slide within the mounting plate by the support plate, thereby improving the sliding stability of the sliding shaft. The telescopic rod is extended and retracted by the support plate to prevent the sliding shaft from shaking. The spring is deformed by the support plate, causing the spring to generate elastic force. The spring's reset is then used to reset the sliding shaft, thereby fixing the heat sink. This achieves buffering and reset adjustment, mitigating the impact of external impacts and reducing the risk of component damage.

[0024] 2. In this utility model, the heat sink plays a role in heat dissipation, providing a stable heat dissipation environment for the substrate and the components above it. The substrate provides fixation for the chip, ensuring its stable installation and preventing chip displacement. The bonding wire connects the chip and forms a complete circuit with the positive and negative power supplies, allowing the current to flow stably and providing reliable power for the chip to emit light. The circuit system and the heat dissipation structure work together to ensure the stable operation of the light source. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a COB light source structure proposed in this utility model;

[0026] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 3 This is a schematic diagram of the substrate structure of a COB light source proposed in this utility model;

[0028] Figure 4 for Figure 3 Enlarged view of section B in the middle.

[0029] Legend:

[0030] 1. Mounting plate; 2. Sliding shaft; 3. Support plate; 4. Telescopic rod; 5. Spring; 6. Heat sink; 7. Substrate; 8. Chip; 9. Bonding wire; 10. Positive power supply; 11. Negative power supply. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1 to 2This utility model provides an embodiment of a COB light source structure, including a mounting plate 1. The mounting plate 1 serves as the basic load-bearing component of the entire light source structure, providing fixation and support to ensure the stable operation of each component. Two sliding components are slidably connected internally to the mounting plate 1, guiding the two sliding components and preventing them from deviating during sliding, thus improving their sliding stability. Each sliding component includes two sliding shafts 2, externally slidably connected to the interior of the mounting plate 1. The mounting plate 1 guides the sliding of the two sliding shafts 2, further improving their sliding stability. Support plates 3 are fixedly connected to the distal ends of each of the two sliding shafts 2, allowing the two sliding shafts 2 to slide by pushing or pulling the support plates 3. Two telescopic rods 4 are rotatably connected internally to each of the two sliding components, and two telescopic rods 4 are rotatably connected internally to each of the two support plates 3, allowing the two telescopic rods 4 to extend or retract by pushing or pulling the support plates 3. Multiple telescopic rods 4 are fixedly connected to the front and rear ends of the mounting plate 1 respectively. The mounting plate 1 provides limiting support for the extension and retraction of multiple telescopic rods 4, preventing the two support plates 3 from deviating when driving multiple telescopic rods 4 to extend and retract, and improving the sliding stability of the two support plates 3.

[0033] Springs 5 ​​are sleeved on the outside of the sliding assembly, and springs 5 ​​are also sleeved on the outside of both sliding shafts 2. The two sliding shafts 2 provide support for the two springs 5, ensuring that the two springs 5 ​​are evenly stressed, thereby improving the efficiency of the two springs 5. The near ends of the two springs 5 ​​are respectively fixedly connected to the front and rear ends of the mounting plate 1. The mounting plate 1 provides support for the reset of the two springs 5, reducing the pressure on the two springs 5 ​​and improving their service life. The far ends of the two springs 5 ​​are respectively fixedly connected to the near ends of the two support plates 3. The movement of the two support plates 3 causes the two springs 5 ​​to deform, generating elastic force. A heat sink 6 is provided inside the mounting plate 1. The heat sink 6 is a heat dissipation component of the light source structure, which can quickly absorb and dissipate the heat generated when the light source is working, ensuring stable operation of the light source. The two sliding shafts 2 are slidably connected to the top of the heat sink 6. The sliding of the two sliding shafts 2 fixes the heat sink 6, preventing it from shifting. A base plate 7 is fixedly connected to the top of the heat sink 6. The heat sink 6 provides heat dissipation for the base plate 7, and the base plate 7 is used to fix the top component.

[0034] Reference Figures 3 to 4Multiple chips 8 are fixedly connected to the top of the substrate 7, providing fixation to prevent the chips 8 from shaking. Multiple bonding wires 9 are provided on the top of the substrate 7, with their external ends fixedly connected to the interior of the chips 8. The substrate 7 provides fixation for the bonding wires 9, which connect the chips 8 and provide power to them to emit light. Two positive power supplies 10 are located inside the heat sink 6, providing positive power to the entire light source circuit. One end of each bonding wire 9 is fixedly connected to the interior of the positive power supply 10, allowing positive power to be transferred to the chips 8. Two negative power supplies 11 are located inside the heat sink 6, forming a circuit loop with the positive power supplies 10 to ensure normal current flow. The other end of each bonding wire 9 is fixedly connected to the interior of the negative power supply 11, creating a closed circuit and ensuring current flows through the chips 8 to emit light. The positive power supply 10 and the negative power supply 11 are symmetrically distributed to ensure the balance of power supply in the circuit and to make the current distribution of the multiple chips 8 uniform.

[0035] Working principle: By pulling the two support plates 3, the two sliding shafts 2 are driven to slide inside the mounting plate 1. At the same time, the two support plates 3 drive the two telescopic rods 4 to extend and retract. The two support plates 3 pull the two springs 5, causing the two springs 5 ​​to deform under force, thereby causing the two sliding shafts 2 to slide away from the top of the heat sink 6. At this time, the heat sink 6 can be replaced. By releasing the two support plates 3, the two sliding shafts 2 are driven to embed into the interior of the mounting plate 1 under the reset of the two springs 5, thereby fixing the heat sink 6 and improving the installation stability of the heat sink 6.

[0036] The heat sink 6 inside the mounting plate 1 is responsible for heat dissipation. The substrate 7 provides fixation for the chip 8, preventing multiple chips 8 from shaking and improving the stability of multiple chips 8. The bonding wires 9 connect the chip 8 to the positive power supply 10 and negative power supply 11 inside the heat sink 6, respectively, forming a complete circuit loop. Current flows through the bonding wires 9 through the chip 8, causing the chip 8 to emit light.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A COB light source structure comprising a mounting plate (1), characterized in that: The mounting plate (1) has two sliding components slidably connected inside, and two telescopic rods (4) are rotatably connected inside each of the two sliding components. A spring (5) is sleeved on the outside of the sliding components. A heat sink (6) is provided inside the mounting plate (1). A base plate (7) is fixedly connected to the top of the heat sink (6). The two sliding components include two sliding shafts (2). The two sliding shafts (2) are slidably connected to the inside of the mounting plate (1) and to the top of the heat sink (6). A support plate (3) is fixedly connected to the far end of each of the two sliding shafts (2). Two telescopic rods (4) are rotatably connected inside each of the two support plates (3).

2. The COB light source structure according to claim 1, characterized in that: Multiple chips (8) are fixedly connected to the top of the substrate (7), and multiple bonding wires (9) are provided on the top of the substrate (7). Two positive power supplies (10) are provided inside the heat sink (6), and two negative power supplies (11) are provided inside the heat sink (6).

3. The COB light source structure according to claim 2, characterized in that: Springs (5) are fitted around the outside of both sliding shafts (2), and the near ends of the two springs (5) are fixedly connected to the front and rear ends of the mounting plate (1).

4. The COB light source structure according to claim 3, characterized in that: The exterior of the multiple telescopic rods (4) are respectively fixedly connected to the front and rear ends of the mounting plate (1), and the far ends of the two springs (5) are respectively fixedly connected to the near ends of the two support plates (3).

5. The COB light source structure according to claim 2, characterized in that: The external of the multiple bonding wires (9) are fixedly connected to the internal of the multiple chips (8), and the positive power supply (10) and the negative power supply (11) are symmetrically distributed.

6. The COB light source structure according to claim 2, characterized in that: One end of the bonding wire (9) is fixedly connected to the inside of the positive power supply (10), and the other end of the bonding wire (9) is fixedly connected to the inside of the negative power supply (11).

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