Lamp

Abstract

This application relates to the field of lighting fixture technology. An embodiment of this application provides a lamp, which includes a light source assembly, a heat sink, and a communication assembly. The light source assembly includes a circuit board and a light-emitting element, the light-emitting element being electrically connected to the circuit board, and the circuit board having an antenna feed. The heat sink includes a metal housing with a slot. The communication assembly includes a first metal connector and a second metal connector. One end of the first metal connector contacts the metal housing, and the other end is connected to the antenna feed. One end of the second metal connector contacts the metal housing, and the other end is connected to the circuit board and grounded. The antenna feed is used to input an excitation current to the metal housing through the first metal connector, causing the metal housing and the slot to resonate and radiate radio frequency signals. By setting the antenna and metal housing as an integral part of the lamp, and the communication assembly connected between the metal housing and the circuit board, the overall structure of the lamp can be simplified while ensuring the communication function of the antenna.

Description

Technical Field

[0001] This application relates to the field of lighting technology, and particularly to a lighting fixture. Background Technology

[0002] Existing lighting fixtures typically incorporate internal antennas for electrical connection to external terminals, enabling wireless communication. This allows users to control the fixtures via external devices, achieving intelligent lighting functionality. However, existing fixtures often use internal antenna brackets to mount the antennas, which increases the overall size of the fixture and raises production costs. Utility Model Content

[0003] In view of this, embodiments of this application provide a light-emitting module and a lamp to solve the above problems.

[0004] This application provides a lighting fixture, including a light source assembly, a heat sink, and a communication assembly. The light source assembly includes a circuit board and a light-emitting element, the light-emitting element being electrically connected to the circuit board, and the circuit board having an antenna feed. The heat sink includes a metal housing with a slot. The communication assembly includes a first metal connector and a second metal connector. The first metal connector is electrically connected between the metal housing and the antenna feed on the circuit board. The second metal connector is electrically connected between the metal housing and the circuit board and grounded. The first and second metal connectors are located on opposite sides of the slot. The antenna feed is used to input an excitation current to the metal housing through the first metal connector, causing the metal housing and the slot to resonate and radiate radio frequency signals.

[0005] In some embodiments, the first metal connector and the second metal connector each include a terminal portion and a connecting portion, the connecting portion being connected between the terminal portion and the circuit board, and the terminal portion protruding relative to the circuit board and contacting the metal housing.

[0006] In some embodiments, the metal housing surrounds the outer periphery of the circuit board and has a central axis. The connecting portion includes a bent section and a connecting section. The connecting section connects the bent section and the circuit board. The bent section extends along the central axis. The terminal portion is connected to the end of the bent section and protrudes toward the metal housing.

[0007] In some embodiments, the metal housing has a first end and a second end that are opposite to each other, the inner diameter of the first end is smaller than the inner diameter of the second end, the communication component is disposed at the second end, and the bent section protrudes toward the first end.

[0008] In some embodiments, the first or second metal connector has an elastic deformation structure, such that its terminal portion remains in contact with the metal housing under pressure.

[0009] In some embodiments, the gap includes a first gap portion, a second gap portion, and a third gap portion connected in sequence. The second gap portion extends along the central axis of the metal shell, the third gap portion is bent relative to the second gap portion, and the first gap portion is bent relative to the second gap portion. The bending directions of the first gap portion and the third gap portion relative to the second gap portion are opposite.

[0010] In some embodiments, thermally conductive colloid is used to fill the space between the housing and the circuit board.

[0011] In some embodiments, the gap is filled with an insulator.

[0012] In some embodiments, the luminaire further includes a lamp housing and a lamp holder. The lamp housing is fitted over a metal casing. The lamp holder has a first open end and a second open end facing away from each other. The first open end is connected to the lamp holder. The luminaire also includes a lamp plate, which is disposed at the second open end. A light-emitting element is electrically connected to the lamp plate, and the lamp plate is electrically connected to a power supply board.

[0013] In some embodiments, the lamp further includes a lampshade, which covers the second open end, and the light-emitting element is disposed inside the lampshade.

[0014] Compared to existing technologies, this embodiment provides a lighting fixture including a light source assembly, a heat sink, and a communication assembly. The communication assembly includes a first metal connector and a second metal connector. A slit is formed in the metal housing of the heat sink. The first metal connector connects the metal housing of the heat sink to the antenna feed of the circuit board, and the second metal connector connects the metal housing to the circuit board. Thus, the heat sink, the light source assembly, and the communication assembly form an antenna loop. This ensures the communication performance of the lighting fixture. Furthermore, the heat sink not only provides heat dissipation but also functions as an antenna support, eliminating the need for an additional antenna support. This effectively saves on the internal structure of the lighting fixture, reduces production costs, and promotes the miniaturization and lightweighting of the lighting fixture. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the lamp provided in the embodiment of this application.

[0017] Figure 2 yes Figure 1 The diagram shown is an exploded view of the lamp's structure.

[0018] Figure 3 yes Figure 1 The diagram shows the structure of the lamp after the lamp housing has been removed.

[0019] Figure 4 yes Figure 3 The diagram shows a longitudinal cross-sectional view of the lamp.

[0020] Figure 5 yes Figure 3 A partially enlarged schematic diagram of the lamp shown.

[0021] Figure 6 yes Figure 2 A schematic diagram of the communication component of the lamp shown.

[0022] Figure label:

[0023] 10. Light source assembly; 11. Circuit board; 12. Light-emitting element; 111. Antenna feed; 121. Lamp board; 122. Light-emitting unit; 20. Heat sink; 21. Metal housing; 211. First end; 212. Second end; 22. Gap; 221. First gap; 222. Second gap; 223. Third gap; 30. Communication component; 31. First metal connector; 311. First terminal; 312. First connecting part; 3121. First bend. 3122, First connecting section, 32, Second metal connector, 321, Second terminal portion, 322, Second connecting portion, 3221, Second bent section, 3222, Second connecting section, 301 Metal connector, 3011, Terminal portion, 3012, Connecting portion, 40, Lamp housing assembly, 41, Receiving space, 42, Lamp housing, 43, Lamp holder, 421, First open end, 422, Second open end, 431, Metal contact, 50, Lamp shade, 60, Insulator. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] It should be noted that when a component / part is said to be "fixed to" another component / part, it can be directly on the other component / part or there may be an intermediate component / part. When a component / part is considered to be "connected to" another component / part, it can be directly connected to the other component / part or there may be an intermediate component / part present; also, when a component / part is considered to be "connected to" another component / part, it can be integrally formed or assembled with the other component / part. When a component / part is considered to be "set on" another component / part, it can be directly set on the other component / part or there may be an intermediate component / part present.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please see Figure 1 and Figure 2 This application provides a lamp 100 for providing illumination or decorative light. The lamp 100 has an antenna that can be electrically connected to an external terminal, allowing the user to adjust the operating parameters of the lamp 100 via the external terminal to improve the user experience. Operating parameters may include at least one of light color, brightness, temperature, and color temperature. The external terminal may include a mobile phone, computer, tablet, or other network-connected device. This embodiment does not limit the specific type of operating parameters or the specific type of external terminal and can set them according to actual usage needs. In some embodiments, the user can also control the operating parameters of the lamp 100 via buttons, a remote control, etc.

[0028] Please see Figure 2In one embodiment provided in this application, the lamp 100 may include a light source assembly 10, a heat sink 20, and a communication assembly 30. The light source assembly 10 includes a circuit board 11 and a light-emitting element 12, the light-emitting element 12 being electrically connected to the circuit board 11, and the circuit board 11 having an antenna feed 111. The heat sink 20 includes a metal housing 21, with a slot 22 formed in the metal housing 21. The communication assembly 30 includes two metal connectors 301, one of which is electrically connected between the metal housing 21 and the antenna feed 111 of the circuit board 11, and the other is electrically connected between the metal housing 21 and the circuit board 11 and grounded. The two metal connectors 301 are located on opposite sides of the slot 22, thereby generating an alternating electric field perpendicular to the metal surface in the slot 22, thereby radiating electromagnetic waves. More specifically, the two metal connectors 301 may include a first metal connector 31 and a second metal connector 32, one end of the first metal connector 31 contacting the metal housing 21, and the other end connected to the antenna feed 111. One end of the second metal connector 32 contacts the metal housing 21, and the other end is connected to the circuit board 11 and grounded. The first metal connector 31 and the second metal connector 32 are located on both sides of the gap 22, for example, they can be located inside or outside the gap 22. The antenna feed 111 is used to input excitation current to the metal housing 21 through the first metal connector 31, so that the metal housing 21 and the gap 22 resonate and radiate radio frequency signals. That is, the heat sink 20, the light source assembly 10, and the communication assembly 30 form an antenna loop. On the one hand, it can ensure the integrity of the signal during transmission, reduce signal loss and interference, improve signal quality and reliability, and ensure the communication performance of the lamp 100. On the other hand, the metal housing 21 of the heat sink 20 has good thermal conductivity, which can conduct the heat generated by the lamp 100 during operation to the outside, thereby effectively reducing the internal temperature of the lamp 100, extending the service life of the lamp 100, and improving the stability and reliability of the lamp 100. Meanwhile, the heat sink 20 also serves as an antenna support, meaning that communication can be achieved without the need for an additional antenna support. This effectively saves on the internal structure of the lamp 100, reduces production costs, and is conducive to the miniaturization and lightweight development of the lamp 100.

[0029] The following sections will introduce each component of the lamp 100 and its specific structure.

[0030] Please see Figure 1 and Figure 2 In this embodiment, the lamp 100 includes a lamp housing assembly 40, which defines the outer contour of the lamp 100. The lamp housing assembly 40 is provided with a receiving space 41, which is used to install mounting components and to protect the mounting components. The mounting components may include the heat sink 20, the light source assembly 10, and the communication assembly 30 mentioned above, etc.

[0031] Specifically, the lamp housing assembly 40 includes a lamp housing 42 and a lamp holder 43. The lamp housing 42 can be arranged in a surrounding shape, thereby defining an accommodating space 41 on the inner wall surface of the lamp housing 42. This embodiment does not limit the specific shape of the lamp housing 42; for example, the lamp housing 42 can be cylindrical, cuboid, or other shapes. In this embodiment, the lamp housing 42 can have a first open end 421 and a second open end 422 that are opposite to each other. The first open end 421, the second open end 422, and the accommodating space 41 are interconnected, that is, the lamp housing 42 is a hollow shell structure with open ends. The first open end 421 is used to connect the lamp holder 43 to realize the electrical connection between the lamp 100 and the external circuit, and the second open end 422 is used for light emission. In some embodiments, the inner diameter of the first open end 421 can be smaller than the inner diameter of the second open end 422 so that the lamp 100 forms a bulb lamp, which facilitates user installation and disassembly. At the same time, a smaller first open end 421 helps to reduce the overall volume of the lamp 100, thereby reducing production costs. The larger second opening 422 facilitates heat dissipation and extends the service life of the lamp 100. Understandably, different shapes of the lamp housing 42 result in different external profiles of the lamp 100.

[0032] The lamp holder 43 serves as the connection between the lamp fixture 100 and the external circuit. It may be provided with conductive metal contacts 431. The metal contacts 431 are used to electrically connect with the external circuit, thereby introducing current from the external circuit into the lamp fixture 100 to power the light source assembly 10. For example, the metal contacts 431 can be rotated and snapped into the connection screw of the external circuit (not shown in the figure) to achieve electrical connection between the lamp fixture 100 and the external circuit. This embodiment does not limit the connection method between the lamp holder 43 and the lamp housing 42. For example, the lamp holder 43 and the lamp housing 42 can be connected by threads, snaps, or welding, etc., and can be set according to actual usage requirements.

[0033] It should be noted that, in this embodiment, since the heat sink 20, communication component 30 and other mounting components are located inside the lamp housing 42, in order to facilitate installation and not affect the light output effect of the lamp 100, the light-emitting component 12 of the light source component 10 can be located at the second opening end 422, so that the light generated by the light-emitting component 12 can be directly emitted to the outside from the second opening end 422, which can prevent the mounting components from blocking the light and improve the light output effect.

[0034] Specifically, the light source assembly 10 includes a circuit board 11 and a light-emitting element 12. The circuit board 11 is electrically connected to the light-emitting element 12 to supply power to the light-emitting element 12. The light-emitting element 12 is used to convert electrical energy into light energy and generate emitted light. It can be disposed at the second opening end 422 to prevent the light generated by the light-emitting element 12 from being blocked by the mounting component. As an example, the light-emitting element 12 may include a lamp board 121 and a plurality of light-emitting units 122. The plurality of light-emitting units 122 are detachably arranged on the lamp board 121 and electrically connected to the lamp board 121. The lamp board 121 is plate-shaped and is disposed at the second opening end 422 and detachably connected to the lamp housing 42 to facilitate the maintenance and management of the light-emitting element 12. The lamp board 121 is also connected to the circuit board 11. That is, the circuit board 11, the lamp board 121, the light-emitting units 122 and the external circuit are interconnected to form a closed loop so that the plurality of light-emitting units 122 emit light.

[0035] Multiple light-emitting units 122 are used to form multiple beams of emitted light. The light-emitting units 122 can be incoherent light sources, specifically high-pressure gas light sources such as halogen bulbs, UHP (ultra-high pressure mercury bulbs), and UHE (ultra-high pressure mercury bulbs), or LED light sources, etc. As an example, the light-emitting unit 122 can be an LED light source, specifically a monochrome LED or a multi-color LED. LED light sources improve the efficiency of converting electrical energy into light energy, thus reducing energy waste. Simultaneously, LED light sources generate less heat during illumination, contributing to energy conservation and environmental protection. Furthermore, LED light sources have a long lifespan, reducing the frequency of light source replacement and lowering operating costs. At the same time, LED light sources avoid eye damage, improving user safety.

[0036] This embodiment does not limit the specific arrangement of the multiple light-emitting units 122 on the lamp panel 121. The colors of the light emitted by the multiple light-emitting units 122 can be the same or different, and can be set according to actual usage requirements to form a variety of light emission effects. As an example only, the multiple light-emitting units 122 are arranged at equal intervals on the lamp panel 121 to improve the uniformity of light emission. At least two of the multiple light-emitting units 122 emit light of different colors, thereby forming at least two different light emission effects to improve the user's visual experience.

[0037] Please see Figure 2In some embodiments, to further improve the light emission effect and protect the light-emitting element 12, the lamp 100 may also include a lampshade 50. The lampshade 50 covers the second opening end 422 so that the light-emitting element 12 is disposed inside the lampshade 50, thereby allowing the light generated by the light-emitting element 12 to be emitted to the outside through the lampshade 50. The light-transmitting cover is used to converge the light generated by the light-emitting element 12 to improve the light emission brightness. At the same time, the lampshade 50 isolates the internal components of the lamp 100 from the outside world, preventing outside air or moisture from entering the interior of the lamp 100 to ensure the normal use of the lamp 100. In addition, the lampshade 50 is also used to prevent users from directly contacting the internal components of the lamp 100, improving the safety of using the lamp 100.

[0038] In this embodiment, the circuit board 11 is electrically connected between the light-emitting element 12 and the lamp holder 43 to form a closed loop. The circuit board 11 can be disposed between the first opening end 421 and the second opening end 422 to avoid affecting the light emission effect of the light-emitting unit 122. The circuit board 11 is generally plate-shaped and extends along the axial direction of the lamp housing 42 to make the internal structure of the lamp 100 more compact, thereby reducing the overall volume of the lamp 100. The circuit board 11 may include a power module (not shown in the figure), which is electrically connected to the light-emitting element 12 to supply power to the light-emitting element 12. At the same time, the power module is also electrically connected to the lamp holder 43 to realize the electrical connection between the circuit board 11 and the external circuit. The circuit board 11 may include a control module (not shown in the figure), which may be a control chip. The control module is electrically connected to the light-emitting element 12 to control the operating parameters of the light-emitting unit 122. For example, the control module can control the brightness, color temperature, light emission color, emission angle, etc. of the light-emitting unit 122. This embodiment does not impose specific limitations on these parameters.

[0039] In this embodiment, the circuit board 11 is also provided with an antenna feed 111. The antenna feed 111 serves as a connection point between the circuit board 11 and the antenna. It can be connected to an external antenna (such as the metal housing 21 of the heat sink 20 and the communication component 30 in this embodiment) and provide excitation current to the antenna to realize signal input and output, thereby realizing wireless communication.

[0040] Please see Figure 2 and Figure 3 Specifically, the heat sink 20 includes a metal housing 21 with a slot 22 opposite to the communication component 30. The communication component 30 may include two metal connectors 301, one of which is electrically connected between the metal housing 21 and the antenna feed 111, and the other is electrically connected between the metal housing 21 and the circuit board 11 and grounded.

[0041] For ease of description, the two metal connectors 301 may specifically include a first metal connector 31 and a second metal connector 32. One end of the first metal connector 31 can contact the metal housing 21, and the other end is connected to the antenna feed 111. One end of the second metal connector 32 can contact the metal housing 21, and the other end is connected to the circuit board 11 and grounded. That is, the antenna feed 111 of the circuit board 11 serves as a feeding network, the first metal connector 31 serves as a radiator, and the second metal connector 32 serves as a grounding conductor, forming the basic structure of the PIFA antenna. The working principle of the PIFA antenna is to transmit electromagnetic energy to the radiating element through the feeding network, and then the radiating element radiates energy outward in the form of electromagnetic waves.

[0042] By creating a slot 22 in the metal housing 21 and connecting the communication component 30 between the metal housing 21 and the circuit board 11, an antenna circuit can be formed without the need for an additional antenna bracket. This effectively saves on the internal structure of the lamp 100, reduces production costs, and facilitates the miniaturization and lightweighting of the lamp 100. Simultaneously, the heat sink 20 serves not only as a component of the PIFA but also as a heat dissipation structure for the lamp 100, effectively reducing the internal temperature of the lamp 100 and improving its lifespan and stability. The heat sink 20 and the communication component 30 used to form the PIFA antenna structure will be described in detail below.

[0043] Please see Figures 2 to 4 In this embodiment, the heat sink 20 is disposed inside the lamp housing 42 and located between the first opening end 421 and the second opening end 422. The heat sink 20 and the circuit board 11 are arranged at a distance from each other, so that the circuit board 11 can quickly conduct heat to the heat sink 20 when working, and then dissipate it to the surrounding environment or outside the lamp 100 through the heat sink 20. This can prevent the circuit board 11 from overheating and affecting its working performance or causing damage, thereby improving the reliability of the lamp 100. In some embodiments, the heat sink 20 can also extend from the first opening end 421 to the second opening end 422, which can increase the heat dissipation area of ​​the heat sink 20 in a limited space, thereby facilitating the heat sink 20 to conduct heat to the outside of the lamp 100 and improving the heat dissipation efficiency. This embodiment does not limit the specific shape of the heat sink 20. For example, the heat sink 20 can be a heat dissipation plate or a heat dissipation cover, which can be set according to actual usage requirements.

[0044] As an example, the heat sink 20 can be a hollow heat sink cover, and the circuit board 11 can be disposed inside the heat sink 20 to improve heat dissipation efficiency. Specifically, the heat sink 20 may include a metal housing 21, which forms the outer contour of the heat sink 20 and has a central axis O1. The metal housing 21 is arranged around the central axis O1 so that the heat sink 20 is generally arranged in a hollow ring shape. The circuit board 11 can be disposed inside the hollow cavity of the metal housing 21, and the light-emitting element 12 is disposed outside the hollow cavity. Thus, the heat sink 20 can absorb the heat of the circuit board 11 more evenly and form a larger heat dissipation area to improve heat dissipation efficiency. In addition, the circuit board 11 being disposed inside the heat sink 20 makes the overall structure of the lamp 100 more compact, making full use of the space inside the lamp housing 42, which is conducive to the miniaturization of the lamp 100 and reducing production costs.

[0045] This embodiment does not limit the specific type of the metal casing 21. For example, the metal casing 21 can be a metal casing 21 with good heat dissipation performance and thermal conductivity, such as an aluminum casing or a copper casing, or a metal compound casing. In some embodiments, the heat sink 20 may also include a heat sink casing made of materials that can conduct electricity and heat, such as conductive ceramics, graphene, or conductive polymers. This embodiment does not impose specific limitations on this.

[0046] In some embodiments, the inner diameters of the two ends of the metal housing 21 can be different. The light-emitting element 12 can be located near the end of the metal housing 21 with a larger inner diameter. The end with a larger inner diameter has a relatively larger space to facilitate airflow and improve heat dissipation efficiency. Specifically, the metal housing 21 has a first end 211 and a second end 212 that are opposite to each other. The first end 211 and the second end 212 are connected to each other so that the metal housing 21 is arranged in a hollow, surrounding shape. The first end 211 is located opposite to the light-emitting element 12, that is, the first end 211 can be located near the first opening end 421, and the second end 212 can be located near the second opening end 422. Thus, the light-emitting element 12 is located outside the metal housing 21 and near the second end 212. The inner diameter of the first end 211 can be smaller than the inner diameter of the second end 212. Thus, the space of the metal housing 21 near the light-emitting element 12 is larger, which is beneficial to improve airflow efficiency and thus heat dissipation efficiency. This can prevent heat from concentrating at the light-emitting element 12 and the circuit board 11, ensuring the reliability of the lamp 100. Meanwhile, the larger inner diameter of the second end 212 provides more operating and installation space, facilitating the maintenance and management of the installed components.

[0047] In this embodiment, the metal housing 21 serves not only as a heat sink 20 but also as a structural component of the PIFA antenna. Specifically, the communication component 30 is connected between the metal housing 21 and the circuit board 11, providing electrical connection and signal transmission. The two metal connectors 301 of the communication component 30 may include a first metal connector 31 and a second metal connector 32, spaced apart from each other. One end of the first metal connector 31 is connected to the antenna feed 111 on the circuit board 11, and the other end contacts the metal housing 21, thereby enabling the input of excitation current to the metal housing 21. One end of the second metal connector 32 is connected to the ground terminal of the circuit board 11, and the other end contacts the metal housing 21, ensuring proper grounding of the metal housing 21.

[0048] This embodiment does not limit the specific form of the two metal connectors 301 (i.e., the first metal connector 31 and the second metal connector 32). For example, the first metal connector 31 or the second metal connector 32 may include an elastic deformation structure. The elastic deformation structure is used to keep the corresponding terminal portion 3011 in contact with the metal housing under pressure. The terminal portion 3011 is the end of the first metal connector 31 and / or the second metal connector 32 that is in contact with the metal housing 21. For example, it may include a metal elastic sheet, a metal spring pin, a metal stud, etc. This embodiment does not impose specific limitations on this. As an example, the first metal connector 31 may be a first spring sheet, and the second metal connector 32 may be a second spring sheet, with the first spring sheet and the second spring sheet spaced apart from each other. The first spring sheet and the second spring sheet can elastically expand and contract, thereby reducing the risk of connection failure due to transportation. At the same time, the elastic expansion and contraction can allow the communication component 30 to automatically reset and form a tight contact, improving the reliability of communication. It should be noted that the communication component 30 can be a separate component, detachably connected between the circuit board 11 and the metal housing 21, or it can be integrally welded to the circuit board 11 or integrally welded to the metal housing 21. This embodiment does not impose specific limitations on this.

[0049] Please see Figure 4 and Figure 5In this embodiment, the metal housing 21 also has a slot 22, which is used to change the effective electrical length of the antenna, thereby adjusting the resonant frequency. When the excitation current is input to the metal housing 21 through one of the metal connectors 301 (e.g., the first metal connector 31), the metal housing 21 and the slot 22 work together to form a resonant structure, which can effectively radiate and receive radio frequency signals at a specific frequency. It should be noted that the two metal connectors 301 can be disposed inside or outside the slot 22, and the distance between the two metal connectors 301 can be set according to actual usage requirements. This embodiment does not impose specific limitations on this. As an example only, the first metal connector 31 and the second metal connector 32 are located outside the slot 22 and on both sides of the slot 22, and the distance between the first metal connector 31 and the second metal connector 32 can be 2 cm.

[0050] Please see Figure 5 and Figure 6 More specifically, each metal connector 301 (i.e., the first metal connector 31 and the second metal connector 32) may include a terminal portion 3011 and a connecting portion 3012. The connecting portion 3012 is connected between the terminal portion 3011 and the circuit board 11. The terminal portion 3011 protrudes relative to the circuit board 11 and contacts the metal housing 21. That is, the first metal connector 31 may include a first terminal portion 311 and a first connecting portion 312. The first terminal portion 311 is disposed at one end away from the circuit board 11 and protrudes relative to the circuit board 11, and is used to contact the metal housing 21. The first connecting portion 312 is used to connect the first terminal portion 311 and the circuit board 11 to transmit excitation current from the circuit board 11 to the metal housing 21. The second metal connector 32 can be symmetrically arranged with the first metal connector 31 to reduce production costs. Specifically, the second metal connector 32 may include a second terminal portion 321 and a second connecting portion 322. The second terminal portion 321 is located at the end opposite to the circuit board 11 and protrudes relative to the circuit board 11, and is used to contact the metal housing 21. The second connecting portion 322 is used to connect the second terminal portion 321 and the circuit board 11 and is grounded, thereby forming a complete circuit between the metal housing 21, the circuit board 11, and the communication component 30. Furthermore, grounding the second connecting portion 322 helps ensure the stability of the circuit's potential and prevents signal interference and equipment damage caused by potential fluctuations.

[0051] In some embodiments, in order to better connect the metal housing 21 with the first terminal portion 311 and the second terminal portion 321, the metal housing 21 may also be provided with a mounting groove (not shown in the figure). The mounting groove is used to accommodate the first terminal portion 311 and the second terminal portion 321, thereby increasing the contact area between the metal connector 301 and the metal housing 21 and ensuring the stability and reliability of the electrical connection.

[0052] In some embodiments, to reduce the space occupied by the communication component 30 and achieve miniaturization of the lamp 100, the metal connector 301 may also be provided with a bent section to give the antenna a larger effective electrical length within a limited space, thereby improving space utilization. For example, the connection portion 3012 may include a bent section and a connecting section, with the connecting section connecting between the bent section and the circuit board 11. The bent section extends along the central axis O1, and a terminal portion is connected to the end of the bent section and protrudes radially relative to the metal housing 21. Furthermore, the bent section may also form the elastic deformation structure of the metal connector 301 mentioned in the above embodiments to reduce production costs.

[0053] Specifically, the first connecting portion 312 may include a first bent section 3121 and a first connecting section 3122. The first connecting section 3122 connects the first bent section 3121 and the circuit board 11. The first bent section 3121 extends along the central axis O1 of the metal housing 21 to reduce the space occupied by the first metal connector 31 in the radial direction of the metal housing 21. The first terminal portion 311 is connected to the end of the first bent section 3121 and protrudes radially relative to the metal housing 21 to improve the connection stability between the first metal connector 31 and the metal housing 21. Similarly, the second connecting portion 322 may include a second bent section 3221 and a second connecting section 3222. The second connecting section 3222 connects the second bent section 3221 and the circuit board 11. The second bent section 3221 extends along the central axis O1 of the metal housing 21 to reduce the space occupied by the second metal connector 32 in the radial direction of the metal housing 21. The second terminal portion 321 is connected to the end of the second bent section 3221 and protrudes toward the metal housing 21 to improve the connection stability between the second metal connector 32 and the metal housing 21. This embodiment does not limit the specific shape of the first bent section 3121 and the second bent section 3221. For example, the bent section may include multiple interconnected protrusions to further increase the effective electrical length of the antenna within a limited space.

[0054] It is understood that the effective electrical length of the antenna varies depending on the location of the slot 22 on the metal housing 21. The effective electrical length can be adjusted by changing the shape and size of the slot 22, thereby adjusting the resonant frequency to allow signals of the desired frequency to pass through while suppressing interference signals of other frequencies, ensuring stable antenna operation. Simultaneously, the slot 22 can also alter the current distribution of the antenna, thereby adjusting the radiation pattern. This embodiment does not limit the specific shape and size of the slot 22; it can be set according to actual usage requirements.

[0055] Please refer to it again. Figure 3As an example only, in this embodiment, the gap 22 can be arranged in a roughly Z-shape, which can extend the current transmission path without significantly increasing the size of the metal housing 21, enabling it to operate at a lower frequency or meet the requirements of multi-band operation. Specifically, the gap 22 may include a first gap portion 221, a second gap portion 222, and a third gap portion 223 connected in sequence. The second gap portion 222 extends along the central axis of the metal housing 21, the third gap portion 223 can be bent relative to the second gap portion 222, and the first gap portion 221 can be bent relative to the second gap portion 222. The bending directions of the first gap portion 221 and the third gap portion 223 relative to the second gap portion 222 are opposite, so that the gap 22 is arranged in a roughly Z-shape.

[0056] To ensure electrical insulation at the gap 22 and make the antenna's electrical performance more stable and reliable, in some embodiments, the lamp 100 may further include an insulator 60, which fills the gap 22. Specifically, the insulator 60 filling the gap 22 prevents direct conductivity between the two sides of the metal housing 21, avoiding short circuits. Simultaneously, the insulator 60 also prevents moisture, impurities, or corrosive gases from entering the gap 22 to ensure normal antenna operation. Furthermore, the insulator 60 is also used for shaping; filling the gap 22 provides support, preventing deformation of the gap 22 under mechanical stress (such as vibration or impact), thus ensuring the antenna's electrical performance. This embodiment does not limit the specific type of insulator 60; for example, the insulator 60 can be insulating rubber, ceramic, insulating varnish, etc., and can be configured according to actual usage requirements.

[0057] In this embodiment, to further improve the heat dissipation performance of the lamp 100, the lamp 100 may also include a thermally conductive colloid filled between the metal housing 21 and the circuit board 11. By providing the thermally conductive colloid in direct contact with the circuit board 11 and the metal housing 21, the heat generated by the circuit board 11 can be effectively conducted to the metal housing 21, and then dissipated from the metal housing 21 to the surrounding environment, thus improving the overall heat dissipation effect of the lamp 100 and extending its service life. Simultaneously, the cured thermally conductive colloid can provide additional mechanical support, enhancing the connection strength between the circuit board 11 and the metal housing 21, thereby improving the structural stability of the lamp 100.

[0058] In summary, this embodiment provides a lamp 100, which includes a light source assembly 10, a heat sink 20, and a communication assembly 30. The communication assembly 30 includes a first metal connector 31 and a second metal connector 32. A slot 22 is provided on the metal housing 21 of the heat sink 20. The first metal connector 31 connects the metal housing 21 of the heat sink 20 to the antenna feed 111 of the circuit board 11, and the second metal connector 32 connects the metal housing 21 to the circuit board 11. That is, the heat sink 20, the light source assembly 10, and the communication assembly 30 form an antenna loop. This ensures the communication performance of the lamp 100. Furthermore, the heat sink 20 not only provides heat dissipation but also functions as an antenna support, eliminating the need for an additional antenna support. This effectively saves on the internal structure of the lamp 100, reduces production costs, and promotes the miniaturization and lightweighting of the lamp 100.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A lamp, characterized in that, include: A light source assembly, comprising a circuit board and a light-emitting element, wherein the light-emitting element is electrically connected to the circuit board, and the circuit board is provided with an antenna feed. A heat sink, comprising a metal housing having a slit; and A communication component, comprising a first metal connector and a second metal connector, wherein the first metal connector is electrically connected between the antenna feed of the metal housing and the circuit board, and the second metal connector is electrically connected between the metal housing and the circuit board and grounded, and the first metal connector and the second metal connector are respectively located on both sides of the gap; The antenna feed is used to input an excitation current to the metal housing through the first metal connector, so that the metal housing and the gap resonate and radiate radio frequency signals.

2. The lamp as described in claim 1, characterized in that, The first metal connector and the second metal connector each include a terminal portion and a connecting portion. The connecting portion is connected between the terminal portion and the circuit board. The terminal portion protrudes relative to the circuit board and contacts the metal housing.

3. The lamp as described in claim 2, characterized in that, The metal housing surrounds the outer periphery of the circuit board and has a central axis. The connecting portion includes a bent section and a connecting section. The connecting section connects the bent section and the circuit board. The bent section extends along the central axis. The terminal portion is connected to the end of the bent section and protrudes toward the metal housing.

4. The lamp as described in claim 3, characterized in that, The metal housing has a first end and a second end that are opposite to each other. The inner diameter of the first end is smaller than the inner diameter of the second end. The communication component is disposed at the second end, and the bent section protrudes toward the first end.

5. The lamp as described in claim 2, characterized in that, The first metal connector or the second metal connector has an elastic deformation structure, such that its terminal portion remains in contact with the metal housing under pressure.

6. The luminaire as described in any one of claims 1 to 5, characterized in that, The gap includes a first gap portion, a second gap portion, and a third gap portion connected in sequence. The second gap portion extends along the central axis of the metal shell. The third gap portion is bent relative to the second gap portion. The first gap portion is bent relative to the second gap portion. The bending directions of the first gap portion and the third gap portion relative to the second gap portion are opposite.

7. The luminaire as described in any one of claims 1 to 5, characterized in that, A thermally conductive colloid is filled between the metal casing and the circuit board.

8. The luminaire as described in any one of claims 1 to 5, characterized in that, The gap is filled with an insulator.

9. The luminaire as described in any one of claims 1 to 5, characterized in that, The lamp also includes a lamp housing and a lamp holder. The lamp housing is fitted outside the metal housing. The lamp housing has a first open end and a second open end that are opposite to each other. The first open end is connected to the lamp holder. The light-emitting element includes a lamp board and a light-emitting unit. The lamp board is disposed at the second open end. The light-emitting unit is electrically connected to the circuit board through the lamp board.

10. The lamp as described in claim 9, characterized in that, The lamp also includes a lampshade, which covers the second open end, and the light-emitting element is disposed inside the lampshade.

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