LED lamp capable of realizing brightness adjustment based on coating

Abstract

The utility model relates to an LED lamp capable of realizing brightness adjustment based on coating. The LED lamp comprises a substrate; the circuit board is fixedly connected to the base body, and the surface formed by the circuit board is a first surface; the lamp beads are connected with the circuit board and located on the side, away from the base body, of the circuit board; the surface of the lamp bead is coated with the coating, and the surface of the coating is located on the side, away from the circuit board, of the lamp bead; wherein light rays emitted by the lamp beads pass through the coating, and the coating changes the propagation path of the light rays and absorbs part of the light rays, so that the brightness of the LED lamp is adjusted. Light emitted by the lamp bead passes through the coating, the coating changes the propagation path of the light and absorbs part of the light, the brightness of the LED lamp can be effectively adjusted, the physical mode that the surface of the lamp bead is coated with the coating is adopted, interference of other electronic elements on the LED lamp is avoided, and the brightness of the LED lamp can be effectively adjusted. And the brightness of the LED lamp is kept stable for a long time.

Description

Technical Field

[0001] The utility model relates to the field of electronic lighting, in particular to an LED lamp for brightness adjustment based on coating. Background Art

[0002] With the rapid development of LED technology and people's increasing emphasis on energy conservation, the use scale of LED lamps has gradually expanded and entered a wider market. LED lamps are not only used for traditional lighting, but also widely applied in fields such as automotive lighting, plant growth lamps, medical equipment, smart home, stage lighting, and landscape lighting.

[0003] Currently, when the LED lamps on the market are applied to special application scenarios, there are different requirements for parameters such as the brightness and color temperature of the light source. Therefore, customized solutions are usually required to meet the special functional requirements of the application scenarios. In some application scenarios where only a constant light source is required, when setting the brightness of the LED lamp, it is usually achieved by dimming through a dimmer. This method not only requires an additional dimmer to be connected, increasing the complexity of the circuit design, but also the dimmer may cause problems such as flickering and uneven brightness of the LED lamp due to voltage fluctuations, heating, and aging.

[0004] Therefore, it is necessary to provide an LED lamp for brightness adjustment based on coating that can effectively adjust the brightness and maintain the brightness stability for a long time. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an LED lamp for brightness adjustment based on coating that can effectively adjust the brightness and maintain the brightness stability for a long time.

[0006] According to one aspect of the present application, there is provided an LED lamp for brightness adjustment based on coating, the LED lamp comprising:

[0007] A substrate;

[0008] A circuit board fixedly connected to the substrate, the surface formed by the circuit board being the first surface;

[0009] A lamp bead, the lamp bead being connected to the circuit board and located on the side of the circuit board away from the substrate;

[0010] A coating, the coating being coated on the surface of the lamp bead, and the surface being located on the side of the lamp bead away from the circuit board;

[0011] Wherein, the light emitted by the lamp bead passes through the coating, and the coating changes the propagation path of the light and absorbs part of the light to adjust the brightness of the LED lamp.

[0012] Preferably, the LED lamp further comprises:

[0013] A lamp cover, fixedly connected to the base body, and when observed in a direction parallel to the first surface, the lamp cover is located on the side of the coating away from the lamp beads;

[0014] Wherein, the light emitted by the lamp beads passes through the coating and the lamp cover in sequence and then emits out of the LED lamp.

[0015] More preferably, the LED lamp further includes:

[0016] End caps, two of the end caps are fixed on the base body, and when observed in a direction perpendicular to the first surface, the two end caps are located at both ends of the lamp cover to fix the lamp cover.

[0017] More preferably, when observed in a direction parallel to the first surface, the base body is integrally formed with a card slot;

[0018] Wherein, the card slot is located on the side of the base body away from the circuit board, and the LED lamp is fixedly installed through the card slot.

[0019] More preferably, the circuit board includes:

[0020] A cutting part, the cutting part is integrally formed on the circuit board;

[0021] Wherein, by cutting the cutting part, the LED lamp is segmented to control the length of the LED lamp.

[0022] More preferably, the circuit board further includes:

[0023] Pad, integrally formed on the circuit board and located on the side of the circuit board away from the base body. When observed in a direction perpendicular to the first surface, the pads are arranged on both sides of the cutting part.

[0024] More preferably, the pad is provided with a positive pad and a negative pad. When observed in a direction perpendicular to the first surface, the two positive pads are respectively located on both sides of the cutting part, and the two negative pads are also respectively located on both sides of the cutting part;

[0025] Wherein, one positive pad and an adjacent negative pad are combined into one pad.

[0026] More preferably, the LED lamp is provided with bolts, and the bolts pass through the end caps and the base body in sequence, and the end caps are fixed to the base body.

[0027] More preferably, the circuit board further includes:

[0028] Adhesive, located on the side of the circuit board away from the lamp beads;

[0029] Among them, the circuit board is fixedly connected to the substrate through the back glue.

[0030] More preferably, a resistor is provided on the circuit board, and the resistor limits the current entering the circuit board to protect the circuit board.

[0031] The utility model has the following beneficial effects:

[0032] The light emitted by the lamp beads passes through the coating, and the coating changes the propagation path of the light and absorbs part of the light, so that the LED lamp can effectively adjust the brightness. By using the physical method of coating the coating on the surface of the lamp beads, interference from other electronic components to the LED lamp is avoided, ensuring that the LED lamp maintains a stable brightness for a long time. Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 It is a three-dimensional structure schematic diagram of the LED lamp according to an embodiment of the present utility model;

[0035] Figure 2 It is a planar structure schematic diagram of the LED lamp disassembling the lamp cover according to an embodiment of the present utility model;

[0036] Figure 3 It is a three-dimensional structure schematic diagram of the circuit board in the LED lamp according to an embodiment of the present utility model;

[0037] Figure 4 It is a cross-sectional schematic diagram of the LED lamp according to an embodiment of the present utility model;

[0038] Figure 5 It is a cross-sectional schematic diagram of the circuit board in the LED lamp according to an embodiment of the present utility model;

[0039] Explanation of the reference numerals in the drawings: 100, LED lamp; 10, substrate; 11, card slot; 20, circuit board; 21, cutting part; 22, pad; 22A, positive pad; 22B, negative pad; 23, back glue; 24, resistor; 30, lamp bead; 40, coating; 50, lamp cover; 60, end cap; 70, bolt; S1, first surface. Detailed Embodiments

[0040] To facilitate the understanding of this application, the following will provide a more comprehensive description of this application with reference to the relevant drawings. The drawings show preferred embodiments of this application. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of this application more thorough and comprehensive.

[0041] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0043] Please refer to Figure 1 - Figure 5 , an embodiment of the present utility model provides an LED lamp 100 for realizing brightness adjustment based on coating. The LED lamp 100 includes: a base 10, a circuit board 20, lamp beads 30 and a coating 40. The circuit board 20 is fixedly connected to the base 10, and the surface formed by the circuit board 20 is a first surface S1. The lamp beads 30 are connected to the circuit board 20 and are located on the side of the circuit board 20 away from the base 10. The coating 40 is coated on the surface of the lamp beads 30, and the surface is located on the side of the lamp beads 30 away from the circuit board 20. The light emitted by the lamp beads 30 passes through the coating 40, and the coating 40 changes the propagation path of the light and absorbs part of the light to adjust the brightness of the LED lamp 100.

[0044] Among them, the coating 40 is coated on the surface of the lamp bead 30. By changing the light propagation path, the coating 40 can guide the light to scatter at a specific angle or direction, avoiding overly concentrated or dazzling light. This design makes the light emitted by the LED lamp 100 more uniform and improves the lighting effect. The most important function of the coating 40 is to absorb part of the light, realizing the brightness adjustment of the LED lamp 100. Compared with the circuit dimming method, the coating 40 dimming is a physical brightness adjustment method that does not require changing the current or voltage. By absorbing part of the light, the coating 40 can reduce the light output without changing the energy consumption of the lamp bead 30, so that the brightness adapts to different needs. In addition to being able to adjust the brightness and make the light uniform, the coating 40 can also protect the lamp bead 30 from the influence of the external environment (such as moisture, dust, etc.) and extend the service life of the lamp bead 30. This coating 40 is equivalent to providing a physical barrier for the lamp bead 30, which helps to maintain the stable performance of the LED lamp 100. Adjusting the brightness by using the coating technology can reduce the use of traditional electronic dimming devices, simplify the circuit design, and reduce the risk of circuit failures. In addition, reducing the use of circuit components can also effectively reduce the manufacturing cost of the LED lamp 100.

[0045] Preferably, the LED lamp 100 further includes: a lamp cover 50. The lamp cover 50 is fixedly connected to the base body 10, and when observed in a direction parallel to the first surface S1, the lamp cover 50 is located on the side of the coating 40 away from the lamp bead 30. The light emitted by the lamp bead 30 passes through the coating 40 and the lamp cover 50 in sequence and then exits the LED lamp 100.

[0046] Among them, the lamp cover 50 is located outside the coating 40. After the light is adjusted by the coating 40 and then processed by the lamp cover 50 again, the light can be further softened and diffused. This can avoid the light from being too dazzling, reduce glare, and make the lighting effect of the LED lamp 100 more uniform and comfortable, which is suitable for scenarios that require soft lighting, such as home lighting, office environments, etc. The lamp cover 50 provides additional protection for the lamp beads 30 and the coating 40, preventing dust, moisture, or other external pollutants from directly contacting the lamp beads 30 and the coating 40, and extending the service life of the LED lamp 100. At the same time, the lamp cover 50 can prevent the wear or aging of the coating 40 on the surface of the lamp beads 30, ensuring that the LED lamp 100 maintains a stable light quality for a long time. The lamp cover 50 can provide a more beautiful appearance design for the LED lamp 100, while also protecting the internal structure, increasing the overall firmness and safety of the lamp. By fixedly connecting the lamp cover 50 to the base 10, it can ensure that the LED lamp 100 is more firmly fixed during use, preventing the internal lamp beads 30 or the coating 40 from being damaged due to external forces. The lamp cover 50 can guide the light, control the irradiation direction of the light, and prevent the light from diverging in unnecessary directions. This can improve the lighting efficiency of the LED lamp 100, ensure that the light is concentrated in the predetermined lighting area, and reduce light pollution or unnecessary light loss.

[0047] Preferably, the LED lamp 100 further includes: end caps 60. The two end caps 60 are fixed to the base 10, and when observed in a direction perpendicular to the first surface S1, the two end caps 60 are located at both ends of the lamp cover 50 to fix the lamp cover 50.

[0048] Among them, the end caps 60 are located at both ends of the lamp cover 50. The main function is to fix the lamp cover 50 on the base body 10 to ensure that the lamp cover 50 will not loosen or shift. This fixing method makes the structure of the entire LED lamp 100 more stable, enabling it to remain stable during long-term use and preventing the lamp cover 50 from being displaced or falling off due to external forces or vibrations. By providing end caps 60 at both ends of the lamp cover 50, the sealing of the lamp cover 50 can be achieved, preventing external pollutants such as dust and humid air from entering the interior of the lamp, protecting internal components such as the lamp beads 30, the coating 40, and the circuit board 20, extending the service life of the LED lamp 100, and ensuring its reliability in various environments. As the support points at both ends of the structure, the end caps 60 can effectively enhance the strength and durability of the entire LED lamp 100. Especially during the installation or handling of the LED lamp 100, the end caps 60 can bear part of the stress, preventing the lamp cover 50 and internal components from being subjected to excessive impact or compression, thereby reducing the risk of damage. The design of the end caps 60 facilitates the disassembly, assembly, and maintenance of the LED lamp 100 by the user. Fixed to the base body 10, the end caps 60 can be disassembled when needed, facilitating the replacement of the lamp cover 50 or the repair of internal components. Such a modular design improves the maintainability of the LED lamp 100. The end caps 60 not only play a fixing role but also enhance the overall aesthetic appearance of the LED lamp 100. The closed design of the end caps 60 can prevent the wires from being exposed, ensuring the safety of the LED lamp 100 and making the appearance of the lamp more beautiful and concise.

[0049] More preferably, when observed in a direction parallel to the first surface S1, the base body 10 is integrally formed with a card slot 11. The card slot 11 is located on the side of the base body 10 facing away from the circuit board 20, and the LED lamp 100 is fixedly installed through the card slot 11.

[0050] Among them, the card slot 11 provides a simple and fast installation method for the LED lamp 100. Through the card slot 11, the LED lamp 100 can be easily connected to other structures (such as ceiling hanging wires and wall brackets, etc.), without the need for additional bolts 70 or complex installation tools, which allows the LED lamp 100 to adapt to different installation environments, such as walls, ceilings or other installation brackets, increasing the versatility and flexibility of the LED lamp 100. This also allows the LED lamp 100 to be quickly installed or disassembled, improving the convenience and efficiency of installation. The card slot 11 design allows the LED lamp 100 to be firmly fixed at the installation position, reducing displacement or loosening caused by vibration or external force. Compared with traditional screw fixing, the card slot 11 provides more reliable physical support, which is particularly suitable for use in environments with more vibration or frequent movement. The card slot 11 is located on the back of the base 10, avoiding the use of additional external installation components, so that the LED lamp 100 maintains a compact structural design. This not only saves installation space, but also makes the overall lamp more beautiful. The provision of the card slot 11 allows the lamp to be quickly removed from the installation position when necessary, which is convenient for subsequent maintenance and inspection. Compared with other installation and fixing methods that require screw drilling, the card slot 11 is easier to disassemble and assemble, and it is not easy to damage the outer shell or internal components of the lamp. Since the card slot 11 is integrally formed and located on the side of the base 10 away from the circuit board 20, this design hides the installation structure, making the appearance of the LED lamp 100 more concise and beautiful, and the visual effect will not be affected by the exposed fixing parts. This is conducive to improving the appearance design of the product and adapting to a wider range of application scenarios.

[0051] Preferably, the circuit board 20 includes a cutting portion 21. The cutting portion 21 is integrally formed on the circuit board 20. By cutting the cutting portion 21, the LED lamp 100 is segmented to control the length of the LED lamp 100.

[0052] Among them, the setting of the cutting part 21 allows the user to cut the LED lamp 100 according to actual needs, so that the lamp can adapt to different installation environments and length requirements. This flexibility can make the LED lamp 100 suitable for installation scenes of various sizes, whether it is a short local lighting or a long strip lighting requirement, it can be achieved by cutting. By designing a LED circuit board 20 of uniform specifications, the manufacturer only needs to produce a standard length of LED lamp 100. Users can obtain the appropriate size by cutting during installation, reducing the production requirements of multiple length models, thereby reducing manufacturing and inventory costs and improving production efficiency. During the installation process of the LED lamp 100, there may be some uncertainties in the on-site conditions, such as changes in the size of the installation space, adjustments to the design scheme, etc. Through the cutting part 21, the user can adjust the length of the lamp at any time according to the actual situation, avoiding rework or replacement due to non-compliance with specifications, and improving the flexibility and efficiency of installation. The setting of the cutting part 21 is usually combined with the design of the circuit, and cutting will not affect the circuit connection of the circuit board 20 or cause circuit failure. In this way, the LED lamp 100 can still work normally after cutting, ensuring the safety and feasibility of the cutting operation. The modern LED lamp 100 market is increasingly inclined towards customization. Through the setting of the cutting part 21, users can customize according to specific lighting needs and scenes, which increases the scope of application of the product and meets the specific requirements of different users for the length and lighting effect of the LED lamp 100. The cutting function enables the lamp to be used more accurately during production and installation, avoiding waste caused by non-conformity with specifications. The unused part can be reserved for subsequent use, thereby improving the utilization rate of materials and conforming to the concept of environmental protection and resource conservation.

[0053] Preferably, the circuit board 20 further includes a pad 22 which is integrally formed on the circuit board 20 and is located on a side of the circuit board 20 away from the substrate 10 , and is disposed on both sides of the cutting portion 21 when viewed along a direction perpendicular to the first surface S1 .

[0054] Among them, the cutting part 21 is located on the circuit board 20 and may segment the circuit after cutting. Without the pads 22, electrical connection interruption may occur after cutting, affecting the normal operation of the LED lamp 100. By arranging the pads 22 on both sides of the cutting part 21, users can re-weld the electrical connection after cutting to ensure that each section of the lamp can still be powered and operate normally. After cutting, new power lines or control lines can be conveniently connected through the pads 22. Whether in the production process or at the installation site, the pads 22 provide a standard interface for electrical connection, facilitating subsequent circuit operation and debugging. The pads 22 on both sides of the cutting part 21 allow the LED lamp 100 to be modularized. Each cut part can be connected to other circuits through the pads 22 to form small independent working modules. This design enhances the scalability of the LED lamp 100, facilitating large-scale installation or module replacement and upgrade. If a section of the LED lamp 100 fails, the faulty part can be conveniently cut and replaced through the pads 22 without having to replace the entire circuit board 20. This design helps to save maintenance costs and simplifies maintenance operations. The pads 22, as standardized connection points, can support various connection methods, such as direct soldering, plug-and-play connectors, etc. This diverse connection method enables the LED lamp 100 to more flexibly adapt to different electrical connection requirements in practical applications. Since the pads 22 are located on both sides of the cutting part 21, this means that the design has taken into account the circuit integrity after the circuit board 20 is cut. When the user cuts, they only need to operate along the cutting part 21 to ensure that each section of the circuit has a usable pad 22 interface, without damaging other parts of the circuit, thus ensuring the safety and reliability of the circuit connection.

[0055] Preferably, the pad 22 is provided with a positive pad 22A and a negative pad 22B. When observed in a direction perpendicular to the first surface S1, the two positive pads 22A are respectively located on both sides of the cutting part 21, and the two negative pads 22B are also respectively located on both sides of the cutting part 21. One positive pad 22A and an adjacent negative pad 22B are combined into one pad 22.

[0056] Among them, the positive electrode pad 22A and the negative electrode pad 22B are distributed on both sides of the cutting part 21, clearly identifying the polarity of the circuit. This helps to avoid electrode confusion or incorrect connection during the cutting and installation processes. This design reduces the possibility of incorrect connection and improves the safety and reliability of electrical connection. When the LED lamp 100 is cut, the circuit needs to be reconnected. On each cut module, both the positive electrode pad 22A and the negative electrode pad 22B are provided. When the user performs welding, they only need to connect the positive and negative electrodes back to the circuit according to the polarity. This design greatly simplifies the operation steps of electrical connection after cutting. The positive electrode pad 22A and the negative electrode pad 22B are located on both sides of the cutting part 21, enabling each cut LED module to have a complete power input interface. By connecting the cut module to the corresponding pad 22, each cut part can operate independently, ensuring the flexibility of modular application. The positive electrode pad 22A and the negative electrode pad 22B are combined into one pad 22, making the connection operation more convenient. During production or maintenance, technicians can quickly find the correct welding point and quickly complete the welding or plugging operation, thereby improving work efficiency. Through this design, each cut LED module can not only operate independently but also be spliced, extended, or replaced according to requirements. The standardized setting of the pad 22 enables these modules to be quickly connected to the power supply or control system, supporting customized installation and application in various scenarios.

[0057] Preferably, the LED lamp 100 is provided with a bolt 70, and the bolt 70 sequentially passes through the end cap 60 and the base 10, and the end cap 60 is fixed to the base 10.

[0058] The bolt 70 can provide a more firm and stable structural connection for the LED lamp 100. By tightly fixing the end cap 60 to the base 10 with the bolt 70, the situation that the LED lamp 100 loosens or shifts due to external force or vibration during use is avoided, thereby improving the overall durability and service life of the lamp. The design of using the bolt 70 to fix can simplify the disassembly, installation, and maintenance process of the LED lamp 100. When maintenance or replacement of parts of the lamp is required, the bolt 70 can be easily loosened or tightened without causing damage to the lamp body itself. This detachable fixing method is convenient for later maintenance and improves the maintenance efficiency of the equipment. The bolt 70 passes through the end cap 60 and the base 10, which can ensure a tight fit between the two, ensuring good sealing performance of the lamp cover 50 or other components, and avoiding the decline of waterproof or dustproof performance due to poor contact. Such a tight connection can also improve the protection ability of the LED lamp 100 in a humid or dusty environment and extend its service life.

[0059] Preferably, the circuit board 20 further includes: an adhesive 23. The adhesive 23 is located on a side of the circuit board 20 away from the lamp beads 30. The circuit board 20 is fixedly connected to the base 10 through the adhesive 23.

[0060] Among them, the adhesive 23 provides a simple and effective fixing method. Through the bonding effect of the adhesive 23, the circuit board 20 can be quickly and stably installed on the base 10, reducing the complexity of the installation process. This self-adhesive fixing method does not require additional bolts 70, buckles or welding operations, which can speed up the production process and improve production efficiency. The adhesive 23 can provide uniform adhesion on a large surface, ensuring close contact between the circuit board 20 and the base 10. This all-round fitting can prevent the circuit board 20 from loosening due to external vibration or impact during long-term use, ensuring the long-term stability of the LED lamp 100. The adhesive 23 has a certain flexibility and buffering effect, which can effectively absorb external micro-vibrations, thereby reducing the mechanical stress on the circuit board 20. This is particularly important for the LED lamp 100 used in a vibrating environment. The buffering characteristics of the adhesive 23 help to extend the life of electronic components and reduce the possibility of damage. The adhesive 23 material has a certain heat insulation performance, which can, to a certain extent, isolate the heat conduction between the circuit board 20 and the base 10. This is important for preventing excessive heat accumulation between the base 10 and the circuit board 20. Especially in a high-temperature environment, this heat insulation effect can help the LED lamp 100 dissipate heat better, thereby improving its service life and performance stability. In addition, the use of the adhesive 23 can also reduce the total weight of the lamp. Especially in occasions with high requirements for lightweight design (such as ceiling lights or vehicle-mounted lamps), the lightweight characteristics of the adhesive 23 are a significant advantage. Some adhesive 23 materials have good waterproof and dustproof performance, which can form a sealing barrier between the circuit board 20 and the base 10, preventing external pollutants such as dust and water vapor from entering between the circuit board 20 and the base 10, thereby improving the protection performance of the LED lamp 100 in a harsh environment.

[0061] Preferably, a resistor 24 is provided on the circuit board 20, and the resistor 24 limits the current entering the circuit board 20 to protect the circuit board 20.

[0062] Among them, the main function of the resistor 24 is to limit the current flowing into the circuit board 20 and the 100-bead LED lamp, thereby preventing excessive current from damaging them. Excessive current may cause the 100-bead LED lamp to overheat, the wires on the circuit board 20 to burn out, or the insulation layer to age, thereby reducing the service life of the LED lamp 100 or causing malfunctions. By setting the resistor 24, these potential problems can be effectively prevented, and the reliability of the lamp can be improved. By optimizing the value of the resistor 24, the LED lamp 100 can operate in its optimal efficiency range, thereby maximizing energy efficiency. The resistor 24 helps ensure that the 100-bead LED lamp operates within its rated current range, which not only improves energy efficiency but also reduces power waste and heat generation. By setting the resistor 24 to limit the current, the risk of electrical fire caused by excessive current can be effectively reduced, enhancing the safety of the LED lamp 100. Protecting the circuit and electronic components from overload is an important measure to ensure safe use.

[0063] Thereby, the light emitted by the lamp bead 30 passes through the coating 40, and the coating 40 changes the propagation path of the light and absorbs part of the light, enabling the LED lamp 100 to effectively adjust its brightness. By using the physical method of coating the surface of the lamp bead 30 with the coating 40, interference from other electronic components to the LED lamp 100 is avoided, ensuring that the LED lamp 100 maintains stable brightness for a long time.

[0064] The above-described embodiments merely represent several embodiments of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation of the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An LED lamp that realizes brightness adjustment based on coating, characterized in that: The LED lamp comprises: matrix; A circuit board is fixedly connected to the substrate, and a surface formed by the circuit board is a first surface; A lamp bead, which is connected to the circuit board and is located on a side of the circuit board away from the base; A coating, the coating is applied to the surface of the lamp bead, and the surface is located on a side of the lamp bead away from the circuit board; The light emitted by the lamp bead passes through the coating, and the coating changes the propagation path of the light and absorbs part of the light to adjust the brightness of the LED lamp.

2. The LED lamp with brightness adjustment based on coating according to claim 1, characterized in that: The LED lamp also includes: A lampshade is fixedly connected to the substrate and is located on a side of the coating away from the lamp bead when viewed in a direction parallel to the first surface; The light emitted by the lamp bead passes through the coating and the lampshade in sequence and then exits the LED lamp.

3. The LED lamp with brightness adjustment based on coating according to claim 2, characterized in that: The LED lamp also includes: End covers, two of which are fixed on the base, and when viewed in a direction perpendicular to the first surface, the two end covers are located at both ends of the lampshade to fix the lampshade.

4. The LED lamp with brightness adjustment based on coating according to claim 1, characterized in that: When viewed along a direction parallel to the first surface, the base body is integrally formed with a card slot; Wherein, the card slot is located on a side of the base body away from the circuit board, and the LED lamp is fixedly installed through the card slot.

5. The LED lamp with brightness adjustment based on coating according to claim 1, characterized in that: The circuit board comprises: A cutting portion, the cutting portion being integrally formed on the circuit board; Wherein, by cutting the cutting portion, the LED lamp is segmented to control the length of the LED lamp.

6. The LED lamp with brightness adjustment based on coating according to claim 5, characterized in that: The circuit board also includes: The solder pad is integrally formed on the circuit board and is located on a side of the circuit board away from the substrate. When viewed in a direction perpendicular to the first surface, the solder pad is disposed on both sides of the cutting portion.

7. The LED lamp with brightness adjustment based on coating according to claim 6, characterized in that: The pads are provided with a positive pad and a negative pad, and when viewed in a direction perpendicular to the first surface, the two positive pads are respectively located on both sides of the cutting portion, and the two negative pads are also respectively located on both sides of the cutting portion; Among them, one of the positive electrode pads and one of the adjacent negative electrode pads are combined into one pad.

8. The LED lamp with brightness adjustment based on coating according to claim 3, characterized in that: The LED lamp is provided with a bolt, through which the bolt passes through the end cover and the base in sequence, and the end cover is fixed to the base.

9. The LED lamp with brightness adjustment based on coating according to claim 1, characterized in that: The circuit board also includes: Adhesive backing, located on a side of the circuit board away from the lamp beads; Wherein, the circuit board is fixedly connected to the substrate through the adhesive.

10. The LED lamp with brightness adjustment based on coating according to claim 1, characterized in that: The circuit board is provided with a resistor, and the resistor limits the current entering the circuit board to protect the circuit board.

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