Lighting device

Abstract

The utility model relates to the technical field of lighting, and provides a lighting device which comprises a cable, a shell and a light source assembly. The cable is used for transmitting current and / or electric signals. The cable comprises a conductor and an insulator wrapping the conductor. The shell comprises a base and a light-transmitting cover, the base is formed on the insulator in a wrapping mode, and the light-transmitting cover is connected with the base in a sealed mode to limit a closed containing space. The light source assembly is contained in the containing space and comprises a circuit board, a light-emitting element and a conductive element, the circuit board is provided with a circuit structure, the light-emitting element is arranged on the circuit board and electrically connected with the circuit structure, the conductive element is connected between the base and the circuit board, and the circuit structure is electrically connected with the conductor through the conductive element. The lighting device is high in production efficiency and has good dustproof and waterproof performance.

Description

Technical Field

[0001] This application relates to the field of lighting technology, and in particular to a lighting device. Background Technology

[0002] Currently, lighting devices typically consist of cables, housings, and light source components. The cable includes a first segment and a second segment, and the light source component is housed within the housing. Assembling the lighting device requires not only inserting the first and second segments into the housing and soldering them to the light source component, but also connecting and securing the light source component to the housing. Furthermore, to ensure the lighting device's dustproof and waterproof performance, sealant needs to be injected into the interior of the housing. However, this assembly process is cumbersome, hindering production efficiency, and gaps can easily form between the sealant and the cable, and between the sealant and the light source component, negatively impacting the lighting device's dustproof and waterproof performance. Utility Model Content

[0003] The inventors of this application recognized that assembling a lighting device requires not only threading the first and second segments of the cable into the housing and soldering them to the light source assembly, but also connecting and fixing the light source assembly to the housing, and filling the housing with sealant to isolate the light source assembly from the external environment. This assembly process is cumbersome and detrimental to improving the production efficiency of the lighting device. Furthermore, gaps easily form between the sealant and the cable, and between the sealant and the light source assembly, which hinders the improvement of the lighting device's dustproof and waterproof performance. The purpose of this utility model is to provide a lighting device that addresses the technical problems of low production efficiency and poor dustproof and waterproof performance in existing lighting devices.

[0004] The basic concept proposed by the inventors of this application is that by molding the base onto an insulator, not only is production efficiency high, but the insulator and base can also fit tightly, effectively improving the dustproof and waterproof performance of the lighting device. By connecting conductive elements between the base and the circuit board, the circuit structure and conductors are electrically connected through the conductive elements. This allows the conductive elements to connect the base and the circuit board simultaneously, as well as the circuit structure and conductors, thus enabling the light-emitting element to be electrically connected to the cable. This facilitates operation and further improves the production efficiency of the lighting device. Furthermore, by sealing the light-transmitting cover to the base, the containing space is isolated from the external environment of the casing, further enhancing the dustproof and waterproof performance of the lighting device. Therefore, the above-mentioned lighting device not only has high production efficiency but also excellent dustproof and waterproof performance.

[0005] This application provides a lighting device, including a cable, a housing, and a light source assembly. The cable is used to transmit current and / or electrical signals, and includes a conductor and an insulator covering the conductor. The housing includes a base and a light-transmitting cover, the base being molded onto the insulator, and the light-transmitting cover being sealed to the base to define a closed receiving space. The light source assembly is housed within the receiving space and includes a circuit board, a light-emitting element, and a conductive element. The circuit board has a circuit structure, the light-emitting element is disposed on the circuit board and electrically connected to the circuit structure, and the conductive element is connected between the base and the circuit board. The circuit structure and the conductor are electrically connected through the conductive element.

[0006] The lighting device provided in this application embodiment has at least the following beneficial effects: By molding the base onto an insulator, the lighting device not only boasts high production efficiency but also ensures a tight fit between the insulator and the base, effectively improving the dustproof and waterproof performance of the lighting device. Furthermore, by connecting conductive elements between the base and the circuit board, the circuit structure and conductors are electrically connected through these conductive elements. This allows the conductive elements to connect both the base and the circuit board, as well as the circuit structure and conductors, thereby achieving electrical connection between the light-emitting element and the cable. This simplifies operation and further improves the production efficiency of the lighting device. Additionally, by sealing the light-transmitting cover to the base, the accommodating space is isolated from the external environment of the casing, further enhancing the dustproof and waterproof performance of the lighting device. Therefore, the above-mentioned lighting device not only has high production efficiency but also excellent dustproof and waterproof performance.

[0007] In some embodiments of this application, the circuit board has a through hole, and the conductive element includes a connecting part, a piercing part connected to one end of the connecting part, and a pressing part connected to the other end of the connecting part. The connecting part passes through the through hole and is connected to the base, the piercing part passes through the insulator and is electrically connected to the conductor, and the pressing part presses against the side of the circuit board away from the cable and is electrically connected to the circuit structure.

[0008] By adopting the above technical solution, it is not only easy to fix the circuit board on the base, but also easy to connect the conductive components to the cable. The structure is simple and the operation is convenient, which further improves the production efficiency of the lighting device.

[0009] In some embodiments of this application, the base includes a bottom wall and a connecting post. The bottom wall is covered and formed on an insulator. The connecting post is connected to the bottom wall. The connecting post has connecting holes that pass through opposite ends of the connecting post. One end of the connecting hole is directly opposite to the conductor, and the other end of the connecting hole is directly opposite to the through hole. The connecting part passes through the through hole and is threaded to the connecting hole.

[0010] By adopting the above technical solution, since one end of the connecting hole is directly opposite the conductor and the other end of the connecting hole is directly opposite the through hole, the circuit board can be fixed on the base simply by passing the connecting part through the through hole and connecting it to the connecting post. At the same time, the piercing part can accurately pierce the insulator and come into contact with the conductor after passing through the connecting post, so as to realize the electrical connection between the conductive element and the conductor. This not only has high alignment accuracy and improves the reliability of the electrical connection between the conductive element and the conductor, but also makes the operation convenient and further improves the production efficiency of the lighting device.

[0011] In some embodiments of this application, the circuit structure includes a conductive disk and a conductive line. The conductive disk is disposed on the outer periphery of the via. The pressing part presses against the side of the circuit board facing away from the cable and is electrically connected to the conductive disk. The conductive line is electrically connected between the conductive disk and the light-emitting element.

[0012] By adopting the above technical solution, while the connecting part is connected to the base, the pressing part presses against the side of the circuit board facing away from the cable and is electrically connected to the conductive plate. This not only fixes the circuit board on the base, but also realizes the electrical connection between the conductive element and the light-emitting element. The operation is convenient and further improves the production efficiency of the lighting device.

[0013] In some embodiments of this application, the cable includes a voltage line and a grounding line, and the conductive element includes a first conductive element and a second conductive element. The first conductive element is electrically connected between the voltage line and the voltage terminal of the light-emitting element, and the second conductive element is electrically connected between the grounding line and the grounding terminal of the light-emitting element.

[0014] By adopting the above technical solution, current can flow from the voltage line into the voltage terminal of the light-emitting element and flow out from the ground terminal of the light-emitting element to the grounding line, effectively providing electrical energy to the light-emitting element.

[0015] In some embodiments of this application, the cable further includes a signal input line and a signal output line, and the conductive elements further include a third conductive element and a fourth conductive element. The third conductive element is electrically connected between the signal input line and the signal input terminal of the light-emitting element, and the fourth conductive element is electrically connected between the signal output line and the signal output terminal of the light-emitting element.

[0016] By adopting the above technical solution, electrical signals can be input to the signal input terminal of the light-emitting element from the signal input line and output to the signal output line from the signal output terminal of the light-emitting element, effectively realizing the input and output of electrical signals to the light-emitting element.

[0017] In some embodiments of this application, the base has a first sealing interface surrounding the receiving space, and the light-transmitting cover has a second sealing interface, with the first sealing interface and the second sealing interface being sealed together.

[0018] By adopting the above technical solution, the storage space is effectively isolated from the external environment of the casing, further improving the dustproof and waterproof performance of the lighting device.

[0019] In some embodiments of this application, the first sealing interface and the second sealing interface are ultrasonically welded.

[0020] By adopting the above technical solution, the gap between the first sealing interface and the second sealing interface is effectively improved, thereby more effectively isolating the containment space from the external environment of the shell and further improving the dustproof and waterproof performance of the lighting device.

[0021] In some embodiments of this application, the base is injection molded onto an insulator.

[0022] By adopting the above technical solution, the gap between the base and the insulator is effectively improved, thereby effectively isolating the housing space from the external environment of the outer shell, further improving the dustproof and waterproof performance of the lighting device, and also increasing production efficiency.

[0023] In some embodiments of this application, there are multiple housings and multiple light source components. Multiple housings are arranged separately along the length of the cable, and multiple light source components are connected in parallel to the cable and are arranged in one-to-one correspondence with the multiple housings.

[0024] By adopting the above technical solution, since multiple light source components are connected in parallel on the cable, the current flowing through each circuit board is effectively reduced, thereby effectively reducing the voltage drop of each circuit board, and thus effectively improving the voltage drop at the end of the cable, ensuring the consistency of color and brightness of each light source component. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art 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 based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the lighting device provided in the embodiments of this application;

[0027] Figure 2 for Figure 1 The diagram shows the exploded structure of the lighting device.

[0028] Figure 3 for Figure 2 A schematic diagram of the conductive components in the lighting device shown.

[0029] Figure 4 for Figure 2 A schematic diagram of the assembly structure of the circuit board and light-emitting element in the lighting device shown from one viewpoint;

[0030] Figure 5 for Figure 2 A schematic diagram of the assembly structure of the circuit board and light-emitting element in the lighting device shown from another perspective;

[0031] Figure 6 for Figure 2 A schematic cross-sectional view of the cable in the lighting device shown, perpendicular to the length of the cable.

[0032] Figure 7 for Figure 2 A schematic diagram of the structure of the light-transmitting cover in the lighting device shown.

[0033] The following are the labeling elements in the figure:

[0034] 100. Lighting devices;

[0035] 10. Cable; 11. Conductor; 12. Insulator; 13. Voltage line; 14. Grounding wire; 15. Signal input line; 16. Signal output line;

[0036] 20. Outer shell; 21. Base; 211. Bottom wall; 212. Connecting post; 2121. Connecting hole; 213. First peripheral wall; 2131. First sealing interface; 22. Light-transmitting cover; 221. Light-transmitting plate; 2211. Second sealing interface; 222. Second peripheral wall; 23. Accommodation space;

[0037] 30. Light source assembly; 31. Circuit board; 311. Circuit structure; 3111. Conductive disk; 3112. Conductive wire; 312. Via; 32. Light-emitting element; 321. Driver chip; 3211. Ground terminal; 3212. Signal input terminal; 3213. Signal output terminal; 322. Light-emitting chip; 3221. Voltage terminal; 33. Conductive element; 331. Connecting part; 332. Puncture part; 333. Pressing part; 334. First conductive element; 335. Second conductive element; 336. Third conductive element; 337. Fourth conductive element. Detailed Implementation

[0038] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0039] Throughout this specification, references to "an embodiment" or "an embodiment" mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in one embodiment" or "in some embodiments" appear in various places throughout the specification, and not all refer to the same embodiment. Furthermore, in one or more embodiments, particular features, structures, or characteristics may be combined in any suitable manner.

[0040] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0041] 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 with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0042] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] Please refer to the following: Figure 1 , Figure 2 and Figure 6This application provides a lighting device 100, including a cable 10, a housing 20, and a light source assembly 30. The cable 10 is used to transmit current and / or electrical signals, and includes a conductor 11 and an insulator 12 covering the conductor 11. The housing 20 includes a base 21 and a light-transmitting cover 22. The base 21 is molded onto the insulator 12, and the light-transmitting cover 22 is sealed to the base 21 to define a closed receiving space 23. The light source assembly 30 is housed in the receiving space 23. The light source assembly 30 includes a circuit board 31, a light-emitting element 32, and a conductive element 33. The circuit board 31 is provided with a circuit structure 311. The light-emitting element 32 is disposed on the circuit board 31 and electrically connected to the circuit structure 311. The conductive element 33 is connected between the base 21 and the circuit board 31, and the circuit structure 311 is electrically connected to the conductor 11 through the conductive element 33.

[0044] Cable 10 can be used to transmit the current required by the light source assembly 30, and can also be used to transmit electrical signals that control the light source assembly 30, as well as both the current required by the light source assembly 30 and the electrical signals that control the light source assembly 30. Conductor 11 is the main part of cable 10, and is used to transmit the aforementioned current and / or electrical signals. The material of conductor 11 can be, but is not limited to, copper, aluminum, nickel, iron, and zinc. Insulator 12 covers conductor 11 to insulate and separate conductor 11 from other components, thereby reducing the risk of short circuits in the lighting device 100.

[0045] The housing 20 is used to provide a housing space 23 for accommodating the light source assembly 30.

[0046] The base 21 is used to support components such as the cable 10 and the light source assembly 30. The base 21 is overmolded on the insulator 12. As an example, at least a portion of the cable 10 is exposed in the receiving space 23 so that the conductive element 33 can be electrically connected to the portion of the cable 10 exposed in the receiving space 23.

[0047] In some embodiments, please refer to Figure 2 The base 21 includes a bottom wall 211 and a first peripheral wall 213. The first peripheral wall 213 is connected to the periphery of the bottom wall 211 to define the aforementioned receiving space 23. The bottom wall 211 can be formed over the insulator 12, or the first peripheral wall 213 can be formed over the insulator 12.

[0048] The light-transmitting cover 22 is used to seal the aforementioned receiving space 23, and light can pass through the light-transmitting cover 22 so that the light emitted by the light source assembly 30 can pass through the light-transmitting cover 22 and propagate to the external environment of the housing 20. The light-transmitting cover 22 is sealed to the base 21 to isolate the receiving space 23 from the external environment of the housing 20. The sealing connection between the light-transmitting cover 22 and the base 21 can be, but is not limited to, welding, bonding, etc.

[0049] In some embodiments, please refer to Figure 7 The light-transmitting cover 22 includes a light-transmitting plate 221 and a second peripheral wall 222. The light-transmitting plate 221 is positioned opposite to the light-emitting part of the light-emitting element 32, so that the light emitted by the light-emitting element 32 can pass through the light-transmitting plate 221 and propagate to the external environment of the outer casing 20. The second peripheral wall 222 is connected to the periphery of the light-transmitting plate 221. The second peripheral wall 222 can be sealed to the first peripheral wall 213, the light-transmitting plate 221 can be sealed to the first peripheral wall 213, or the second peripheral wall 222 can be sealed to the bottom wall 211.

[0050] As an example, a condenser lens is provided on the light-transmitting plate 221, and the condenser lens is positioned directly opposite the light-emitting part of the light-emitting element 32 to improve the light dispersion of the lighting device 100.

[0051] The light source assembly 30 is the core component of the lighting device 100, used to generate light.

[0052] The circuit board 31 is the carrier of the light-emitting element 32 and is used to provide a circuit structure 311 that is electrically connected to the light-emitting element 32.

[0053] The light-emitting element 32 is the core component of the light source assembly 30, used to generate light. The light-emitting element 32 is disposed on the circuit board 31 and electrically connected to the circuit structure 311. The light-emitting element 32 can be, but is not limited to, a light-emitting diode, an organic light-emitting diode, an electroluminescent device, etc.

[0054] The conductive element 33 is used not only to connect the base 21 and the circuit board 31 to fix the circuit board 31 on the base 21, but also to electrically connect the conductor 11 and the circuit structure 311 to electrically connect the conductor 11 to the light-emitting element 32. That is, when the conductive element 33 connects the base 21 and the circuit board 31, the conductor 11, the conductive element 33, the circuit structure 311, and the light-emitting element 32 are sequentially electrically connected. The connection method between the conductive element 33 and the base 21 can be, but is not limited to, threaded connection, snap-fit ​​connection, interference fit connection, etc. The connection method between the conductive element 33 and the circuit board 31 can be, but is not limited to, threaded connection, snap-fit ​​connection, compression connection, etc. The material of the conductive element 33 can be, but is not limited to, copper, aluminum, nickel, iron, and zinc.

[0055] The lighting device 100 provided in this embodiment not only achieves high production efficiency by encasing the base 21 on the insulator 12, but also ensures a tight fit between the insulator 12 and the base 21, effectively improving the dustproof and waterproof performance of the lighting device 100. Furthermore, by connecting the conductive element 33 between the base 21 and the circuit board 31, and electrically connecting the circuit structure 311 and the conductor 11 through the conductive element 33, the conductive element 33 can simultaneously connect the base 21 and the circuit board 31, and simultaneously connect the circuit structure 311 and the conductor 11, thereby achieving electrical connection between the light-emitting element 32 and the cable 10. This convenient operation further improves the production efficiency of the lighting device 100. In addition, by sealing the light-transmitting cover 22 to the base 21, the accommodating space 23 is isolated from the external environment of the outer casing 20, further enhancing the dustproof and waterproof performance of the lighting device 100. Therefore, the above-mentioned lighting device 100 not only has high production efficiency but also excellent dustproof and waterproof performance.

[0056] Please refer to some embodiments of this application as well. Figure 2 , Figure 3 , Figure 4 and Figure 6 The circuit board 31 has a through hole 312. The conductive element 33 includes a connecting part 331, a piercing part 332 connected to one end of the connecting part 331, and a pressing part 333 connected to the other end of the connecting part 331. The connecting part 331 passes through the through hole 312 and is connected to the base 21. The piercing part 332 passes through the insulator 12 and is electrically connected to the conductor 11. The pressing part 333 presses against the side of the circuit board 31 facing away from the cable 10 and is electrically connected to the circuit structure 311.

[0057] Understandably, via 312 penetrates both opposite surfaces of circuit board 31 along its thickness direction. The shape of via 312 can be, but is not limited to, circular, square, etc.

[0058] As an example, when the connecting part 331 is connected to the base 21, the base 21 and the pressing part 333 cooperate to clamp the circuit board 31 so that the circuit board 31 is fixed on the base 21, and the pressing part 333 is electrically connected to the circuit structure 311.

[0059] As an example, when the connecting part 331 is connected to the base 21, the piercing part 332 pierces the insulator 12 and comes into contact with the conductor 11 so that the conductor 11 is electrically connected to the conductive element 33.

[0060] In some embodiments, the connecting part 331, the pressing part 333, and the piercing part 332 are integrally formed components.

[0061] By adopting the above technical solution, it is not only easy to fix the circuit board 31 on the base 21, but also easy to connect the conductive element 33 to the cable 10. The structure is simple and the operation is convenient, which further improves the production efficiency of the lighting device 100.

[0062] In some embodiments of this application, please refer to Figure 2 The base 21 also includes a connecting post 212. The bottom wall 211 is covered and formed on the insulator 12. The connecting post 212 is connected to the bottom wall 211. The connecting post 212 has connecting holes 2121 that pass through the opposite ends of the connecting post 212. One end of the connecting hole 2121 is directly opposite to the conductor 11, and the other end of the connecting hole 2121 is directly opposite to the through hole 312. The connecting part 331 passes through the through hole 312 and is threaded to the connecting hole 2121.

[0063] In some embodiments, the connecting post 212 is arranged perpendicularly to the bottom wall 211, and the cable 10 is arranged parallel to the bottom wall 211. That is, the through hole 312 and the connecting hole 2121 are arranged facing each other in a direction perpendicular to the bottom wall 211, so that the conductive element 33 can pass through the through hole 312 in a direction perpendicular to the bottom wall 211 and connect to the connecting post 212, and make the conductive element 33 electrically connected to the conductor 11.

[0064] In some embodiments, the conductive element 33 is a self-tapping screw, the tip of the self-tapping screw forms a piercing part 332, the head of the self-tapping screw forms a pressing part 333, the middle part of the self-tapping screw forms a connecting part 331, the wall of the connecting hole 2121 is a smooth surface, and the self-tapping screw is threaded into the connecting hole 2121.

[0065] In other embodiments, the outer peripheral wall of the connecting part 331 is provided with an external thread, and the wall of the connecting hole 2121 may be provided with an internal thread. The external thread of the connecting part 331 and the internal thread of the connecting hole 2121 are engaged to make the connecting part 331 threadedly connected to the connecting post 212.

[0066] By adopting the above technical solution, since one end of the connecting hole 2121 is directly opposite to the conductor 11 and the other end of the connecting hole 2121 is directly opposite to the through hole 312, the circuit board 31 can be fixed on the base 21 simply by passing the connecting part 331 through the through hole 312 and connecting it to the connecting post 212. At the same time, the piercing part 332 can accurately pierce the insulator 12 and contact the conductor 11 after passing through the connecting post 212, so as to realize the electrical connection between the conductive element 33 and the conductor 11. This not only has high alignment accuracy and improves the reliability of the electrical connection between the conductive element 33 and the conductor 11, but also is convenient to operate and further improves the production efficiency of the lighting device 100.

[0067] In some embodiments of this application, please refer to Figure 5The circuit structure 311 includes a conductive disk 3111 and a conductive line 3112. The conductive disk 3111 is disposed on the outer periphery of the via 312. The pressing part 333 presses against the side of the circuit board 31 facing away from the cable 10 and is electrically connected to the conductive disk 3111. The conductive line 3112 is electrically connected between the conductive disk 3111 and the light-emitting element 32.

[0068] In some embodiments, a portion of the conductive pad 3111 is disposed on the outer periphery of the via 312, and another portion of the conductive pad 3111 is disposed on the wall of the via 312 to ensure reliable electrical connection between the conductive element 33 and the circuit structure 311. As an example, the conductive pad 3111 is disposed around the via 312.

[0069] By adopting the above technical solution, while the connecting part 331 connects to the base 21, the pressing part 333 presses against the side of the circuit board 31 facing away from the cable 10 and is electrically connected to the conductive disk 3111. This not only fixes the circuit board 31 on the base 21, but also realizes the electrical connection between the conductive element 33 and the light-emitting element 32. The operation is convenient and further improves the production efficiency of the lighting device 100.

[0070] In some embodiments of this application, please refer to Figure 2 The cable 10 includes a voltage line 13 and a grounding line 14. The conductive element 33 includes a first conductive element 334 and a second conductive element 335. The first conductive element 334 is electrically connected between the voltage line 13 and the voltage terminal 3221 of the light-emitting element 32. The second conductive element 335 is electrically connected between the grounding line 14 and the grounding terminal 3211 of the light-emitting element 32.

[0071] Understandably, both voltage line 13 and grounding line 14 include conductor 11 and insulator 12. The conductor 11 of voltage line 13 and conductor 11 of grounding line 14 are separated from each other. The insulator 12 of voltage line 13 and insulator 12 of grounding line 14 can be connected as one unit or separated.

[0072] In some embodiments, please refer to the following: Figure 2 and Figure 5The circuit board 31 has at least two vias 312, the base 21 includes at least two connecting posts 212, the circuit structure 311 includes at least two conductive disks 3111 and at least two conductive lines 3112, the at least two conductive disks 3111 are arranged in a one-to-one correspondence with the at least two vias 312, the at least two vias 312 are arranged in a one-to-one correspondence with the at least two connecting posts 212, the voltage line 13 is arranged opposite to one connecting post 212, the ground line 14 is arranged opposite to another connecting post 212, the conductor 11 of the voltage line 13, the first conductive element 334, the conductive disk 3111, the conductive line 3112 and the voltage terminal 3221 of the light-emitting element 32 are connected in sequence, the conductor 11 of the ground line 14, the second conductive element 335, the other conductive disk 3111, the other conductive line 3112 and the ground terminal 3211 of the light-emitting element 32 are connected in sequence.

[0073] In some embodiments, please refer to the following: Figure 4 and Figure 5 The light-emitting element 32 includes a driver chip 321 and a light-emitting chip 322. The driver chip 321 is electrically connected to the light-emitting chip 322 to control the light-emitting chip 322. The driver chip 321 has the aforementioned ground terminal 3211, and the light-emitting chip 322 has the aforementioned voltage terminal 3221. A first conductive element 334 is electrically connected between the voltage line 13 and the voltage terminal 3221 of the light-emitting chip 322, and a second conductive element 335 is electrically connected between the ground line 14 and the ground terminal 3211 of the driver chip 321. As an example, the circuit board 31 is a double-sided circuit board 31, with the driver chip 321 and the light-emitting chip 322 disposed on opposite surfaces of the circuit board 31.

[0074] By adopting the above technical solution, current can flow from voltage line 13 into voltage terminal 3221 of light-emitting element 32 and flow out from ground terminal 3211 of light-emitting element 32 to ground line 14, effectively providing power to light-emitting element 32.

[0075] In some embodiments of this application, please refer to Figure 2 The cable 10 also includes a signal input line 15 and a signal output line 16. The conductive element 33 also includes a third conductive element 336 and a fourth conductive element 337. The third conductive element 336 is electrically connected between the signal input line 15 and the signal input terminal 3212 of the light-emitting element 32, and the fourth conductive element 337 is electrically connected between the signal output line 16 and the signal output terminal 3213 of the light-emitting element 32.

[0076] Understandably, both signal input line 15 and signal output line 16 include conductor 11 and insulator 12. The conductor 11 of voltage line 13, conductor 11 of grounding line 14, conductor 11 of signal input line 15 and conductor 11 of signal output line 16 are separated from each other. The insulator 12 of voltage line 13, insulator 12 of grounding line 14, insulator 12 of signal input line 15 and insulator 12 of signal output line 16 can be connected as one unit or separated.

[0077] In some embodiments, please refer to the following: Figure 2 and Figure 5 The circuit board 31 has at least four vias 312, the base 21 includes at least four connecting posts 212, the circuit structure 311 includes at least four conductive pads 3111 and at least four conductive lines 3112, the at least four conductive pads 3111 are arranged in a one-to-one correspondence with the at least four vias 312, the at least four vias 312 are arranged in a one-to-one correspondence with the at least four connecting posts 212, the voltage line 13 is arranged opposite to one connecting post 212, the ground line 14 is arranged opposite to another connecting post 212, the signal input line 15 is arranged opposite to yet another connecting post 212, the signal output line 16 is arranged opposite to yet another connecting post 212, and the conductor 11, the first conductive element 334, and a conductive element of the voltage line 13 are all present. The conductor 11 of the grounding wire 14, the second conductive element 335, another conductive disk 3111, another conductive line 3112, and the grounding terminal 3211 of the light-emitting element 32 are connected in sequence. The conductor 11 of the signal input line 15, the third conductive element 336, another conductive disk 3111, another conductive line 3112, and the signal input terminal 3212 of the light-emitting element 32 are connected in sequence. The conductor 11 of the signal output line 16, the fourth conductive element 337, another conductive disk 3111, another conductive line 3112, and the signal output terminal 3213 of the light-emitting element 32 are connected in sequence.

[0078] In some embodiments, please refer to Figure 5 The driver chip 321 also has the above-mentioned signal input terminal 3212 and the above-mentioned signal output terminal 3213. The third conductive element 336 is electrically connected between the voltage line 13 and the signal input terminal 3212 of the driver chip 321, and the fourth conductive element 337 is electrically connected between the ground line 14 and the signal output terminal 3213 of the driver chip 321.

[0079] By adopting the above technical solution, electrical signals can be input from the signal input line 15 to the signal input terminal 3212 of the light-emitting element 32 and output from the signal output terminal 3213 of the light-emitting element 32 to the signal output line 16, effectively realizing the input and output of electrical signals to the light-emitting element 32.

[0080] Please refer to some embodiments of this application as well. Figure 2 and Figure 7 The base 21 has a first sealing interface 2131, which surrounds the receiving space 23. The light-transmitting cover 22 has a second sealing interface 2211, and the first sealing interface 2131 and the second sealing interface 2211 are sealed together.

[0081] In some embodiments, the end face of the first peripheral wall 213 away from the bottom wall 211 constitutes the first sealing interface 2131, and the surface of the light-transmitting plate 221 facing the bottom wall 211 constitutes the second sealing interface 2211. The first sealing interface 2131 and the second sealing interface 2211 are parallel, attached, and sealed together.

[0082] Of course, in other embodiments, the outer peripheral surface of the first peripheral wall 213 may constitute the first sealing interface 2131, and the inner peripheral surface of the second peripheral wall 222 may constitute the second sealing interface 2211, or the inner peripheral surface of the first peripheral wall 213 may constitute the first sealing interface 2131, and the outer peripheral surface of the second peripheral wall 222 may constitute the second sealing interface 2211.

[0083] By adopting the above technical solution, the accommodating space 23 is effectively isolated from the external environment of the outer shell 20, further improving the dustproof and waterproof performance of the lighting device 100.

[0084] In some embodiments of this application, the first sealing interface 2131 and the second sealing interface 2211 are ultrasonically welded.

[0085] By adopting the above technical solution, the gap between the first sealing interface 2131 and the second sealing interface 2211 is effectively improved, thereby more effectively isolating the accommodating space 23 from the external environment of the outer shell 20, and further improving the dustproof and waterproof performance of the lighting device 100.

[0086] In some embodiments of this application, the base 21 is injection molded onto the insulator 12.

[0087] In some embodiments, during the manufacturing process of the lighting device 100, at least a portion of the cable 10 may be placed in the molding die of the base 21 so that the base 21 is directly injection molded onto the insulator 12 of the cable 10.

[0088] By adopting the above technical solution, the gap between the base 21 and the insulator 12 is effectively improved, thereby effectively isolating the accommodating space 23 from the external environment of the outer shell 20, further improving the dustproof and waterproof performance of the lighting device 100, and also increasing production efficiency.

[0089] In some embodiments of this application, there are multiple housings 20 and multiple light source components 30. Multiple housings 20 are arranged separately along the length of the cable 10, and multiple light source components 30 are connected in parallel to the cable 10 and are arranged in one-to-one correspondence with the multiple housings 20.

[0090] Understandably, the number of housings 20 and the number of light source components 30 can be determined according to actual application needs, specifically 2, 3, 4, 5, 6, etc.

[0091] In some embodiments, the plurality of housings 20 are evenly distributed along the length direction of the cable 10, that is, the distance between any two adjacent housings 20 is equal along the length direction of the cable 10.

[0092] Multiple light source components 30 are connected in parallel to the cable 10. That is, during the operation of the lighting device 100, the total current flows on the cable 10, while multiple partial currents flow through the corresponding light source components 30. Compared with the method of multiple light source components 30 being connected in series to the cable 10, the current flowing through each light source component 30 is smaller.

[0093] By adopting the above technical solution, since multiple light source components 30 are connected in parallel on the cable 10, the current flowing through each circuit board 31 is effectively reduced, thereby effectively reducing the voltage drop of each circuit board 31, and thus effectively improving the voltage drop at the end of the cable 10, ensuring the consistency of color and brightness of each light source component 30.

[0094] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A lighting device (100), characterized in that, The lighting device (100) includes: A cable (10) for transmitting current and / or electrical signals, the cable (10) comprising a conductor (11) and an insulator (12) covering the conductor (11); The outer casing (20) includes a base (21) and a light-transmitting cover (22), wherein the base (21) is overmolded on the insulator (12), and the light-transmitting cover (22) is sealed to the base (21) to define a closed receiving space (23); A light source assembly (30) is housed within the receiving space (23). The light source assembly (30) includes a circuit board (31), a light-emitting element (32), and a conductive element (33). The circuit board (31) is provided with a circuit structure (311). The light-emitting element (32) is disposed on the circuit board (31) and electrically connected to the circuit structure (311). The conductive element (33) is connected between the base (21) and the circuit board (31). The circuit structure (311) and the conductor (11) are electrically connected through the conductive element (33).

2. The lighting device (100) according to claim 1, characterized in that, The circuit board (31) has a through hole (312). The conductive element (33) includes a connecting part (331), a piercing part (332) connected to one end of the connecting part (331), and a pressing part (333) connected to the other end of the connecting part (331). The connecting part (331) passes through the through hole (312) and is connected to the base (21). The piercing part (332) passes through the insulator (12) and is electrically connected to the conductor (11). The pressing part (333) presses against the side of the circuit board (31) facing away from the cable (10) and is electrically connected to the circuit structure (311).

3. The lighting device (100) according to claim 2, characterized in that, The base (21) includes a bottom wall (211) and a connecting post (212). The bottom wall (211) is formed on the insulator (12). The connecting post (212) is connected to the bottom wall (211). The connecting post (212) has connecting holes (2121) that pass through the opposite ends of the connecting post (212). One end of the connecting hole (2121) is directly opposite to the conductor (11), and the other end of the connecting hole (2121) is directly opposite to the through hole (312). The connecting part (331) passes through the through hole (312) and is threaded to the connecting hole (2121).

4. The lighting device (100) according to claim 2, characterized in that, The circuit structure (311) includes a conductive disk (3111) and a conductive line (3112). The conductive disk (3111) is disposed on the outer periphery of the via (312). The pressing part (333) presses against the side of the circuit board (31) facing away from the cable (10) and is electrically connected to the conductive disk (3111). The conductive line (3112) is electrically connected between the conductive disk (3111) and the light-emitting element (32).

5. The lighting device (100) according to any one of claims 1-4, characterized in that, The cable (10) includes a voltage line (13) and a grounding line (14). The conductive element (33) includes a first conductive element (334) and a second conductive element (335). The first conductive element (334) is electrically connected between the voltage line (13) and the voltage terminal (3221) of the light-emitting element (32). The second conductive element (335) is electrically connected between the grounding line (14) and the grounding terminal (3211) of the light-emitting element (32).

6. The lighting device (100) according to claim 5, characterized in that, The cable (10) further includes a signal input line (15) and a signal output line (16). The conductive element (33) further includes a third conductive element (336) and a fourth conductive element (337). The third conductive element (336) is electrically connected between the signal input line (15) and the signal input terminal (3212) of the light-emitting element (32). The fourth conductive element (337) is electrically connected between the signal output line (16) and the signal output terminal (3213) of the light-emitting element (32).

7. The lighting device (100) according to any one of claims 1-4, characterized in that, The base (21) has a first sealing interface (2131) which surrounds the receiving space (23), and the light-transmitting cover (22) has a second sealing interface (2211) which is sealed to the first sealing interface (2131) and the second sealing interface (2211).

8. The lighting device (100) according to claim 7, characterized in that: The first sealing interface (2131) and the second sealing interface (2211) are ultrasonically welded.

9. The lighting device (100) according to any one of claims 1-4, characterized in that, The base (21) is injection molded onto the insulator (12).

10. The lighting device (100) according to any one of claims 1-4, characterized in that, The number of housings (20) and the number of light source components (30) are both multiple. The multiple housings (20) are arranged separately along the length direction of the cable (10). The multiple light source components (30) are connected in parallel to the cable (10) and are arranged in a one-to-one correspondence with the multiple housings (20).

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