A lighting device and a lighting system

Abstract

The embodiment of the present application relates to the lighting technical field, disclose a kind of lighting device and lighting system, lighting device includes shell, light-transmitting piece, light-emitting component, screw piece, connecting wire and sealing element, shell is provided with mounting groove and through-hole, through-hole is communicated with mounting groove, mounting groove has the slot mouth of intercommunication outside world;At least part of light-transmitting piece is housed in mounting groove, light-transmitting piece covers slot mouth;Light-emitting component is set in mounting groove, light-emitting component emits light and can be emitted to outside world through light-transmitting piece;Screw piece is housed in through-hole;One end of connecting wire is provided with mounting head, and mounting head is at least partially inserted into through-hole, and mounting head is fixedly connected with screw piece, and connecting wire is electrically connected with light-emitting component;Sealing element is sleeved on mounting head, and sealing element is abutted between mounting head and shell. By the above-mentioned mode, the risk that water or water vapor enters the inside of the lighting device can be reduced.

Description

Technical Field

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

[0002] Outdoor activities typically require lighting to facilitate human movement. However, it's important to note that outdoor lighting fixtures are usually placed in open environments, where rainwater, snow, and fog can easily fall directly onto their surfaces. Furthermore, the technology often involves connecting these fixtures to a power source via wires, creating gaps between the wires and the fixture's casing, allowing water to easily enter the device. Utility Model Content The main technical problem addressed by the embodiments of this application is to provide a lighting device and lighting system that can reduce the risk of water or water vapor entering the interior of the lighting device.

[0003] To solve the above-mentioned technical problems, one technical solution adopted in this application embodiment is as follows: a lighting device is provided, including a housing, a light-transmitting element, a light-emitting component, a screw connector, a connecting wire, and a sealing element. The housing is provided with a mounting groove and a through hole, the through hole communicating with the mounting groove, and the mounting groove having an opening communicating with the outside. At least a portion of the light-transmitting element is received in the mounting groove, and the light-transmitting element covers the opening. The light-emitting component is disposed in the mounting groove, and the light energy emitted by the light-emitting component is emitted to the outside through the light-transmitting element. The screw connector is received in the through hole. One end of the connecting wire is provided with a mounting head, at least a portion of which is inserted into the through hole, and the mounting head is screwed and fixed to the screw connector. The connecting wire is electrically connected to the light-emitting component. The sealing element is sleeved on the mounting head, and the sealing element abuts against the mounting head and the housing.

[0004] In some embodiments, the mounting head includes an abutment portion and a fixing portion. One end of the fixing portion is connected to the abutment portion, a seal is sleeved on the fixing portion, the abutment portion abuts against the seal, the fixing portion passes through the through hole, and the fixing portion is used to be screwed and fixed to the screw connector.

[0005] In some embodiments, the through hole includes a receiving groove and a via, the receiving groove communicating with the via and the receiving groove communicating with the mounting groove, the screw connector being received in the receiving groove and the screw connector being interference-fitted with the receiving groove, the mounting head passing through the via and the mounting head being screwed and fixed to the screw connector.

[0006] In some embodiments, the lighting device further includes a bracket, which includes a support arm, a first connecting arm, and a second connecting arm. One end of the first connecting arm is connected to one end of the support arm, and one end of the second connecting arm is connected to the other end of the support arm. A housing is located between the first and second connecting arms, and the housing is connected to the end of the first connecting arm away from the support arm, and to the end of the second connecting arm away from the support arm.

[0007] In some embodiments, there are two connecting wires and two seals. The housing is provided with two through holes. The mounting head of a connecting wire passes through at least part of one through hole and is fixed to the housing. A seal is fitted onto one mounting head. Both seals abut against the surface of the housing opposite to the groove.

[0008] In some embodiments, the light-emitting component includes a circuit board and a plurality of LEDs, the plurality of LEDs being spaced apart on the circuit board, the circuit board being housed in a mounting groove, and connecting wires being electrically connected to the circuit board through through holes.

[0009] In some embodiments, the lighting device includes a reflector located between a circuit board and a light-transmitting element. The reflector is provided with a plurality of light-transmitting holes, which penetrate the reflector along a first direction parallel to the arrangement direction of the light-emitting component and the light-transmitting element. A light bead is exposed through a light-transmitting hole.

[0010] In some embodiments, the cross-sectional area of ​​the light-transmitting hole gradually increases from the end of the light-transmitting hole near the circuit board to the end of the light-transmitting hole away from the circuit board, perpendicular to the first direction.

[0011] In some embodiments, the lighting device includes a breather, the housing is provided with a breather hole, the breather hole communicates with the mounting groove, and the breather is disposed in the breather hole.

[0012] To solve the above-mentioned technical problems, another technical solution adopted in the embodiments of this application is: to provide a lighting system, including two or more of the above-mentioned lighting devices, wherein two adjacent lighting devices are electrically connected through a connector.

[0013] The beneficial effects of this application embodiment are as follows: Unlike the prior art, in this application embodiment, by providing an installation head at one end of the connecting wire, the installation head is at least partially inserted into the through hole of the housing, and the installation head is fixed to the housing, thereby reducing the risk of the connecting wire detaching from the housing, and further reducing the risk of the connecting wire separating from the light-emitting component when pulled; by sleeve a sealing element on the installation head, and the sealing element abutting between the installation head and the housing during installation, the sealing performance between the installation head and the housing can be improved, reducing the risk of external water or water vapor entering the mounting groove from the gap between the installation head and the housing. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1This is a schematic diagram of the structure of the lighting device provided in the embodiments of this application; Figure 2 This is an exploded view of the lighting device provided in the embodiments of this application; Figure 3 This is a partial structural schematic diagram of the lighting device provided in the embodiments of this application; Figure 4 It is along Figure 3 Schematic diagram of the structure after AA is cut open; Figure 5 yes Figure 4 An enlarged view of the area shown in section A; Figure 6 This is a schematic diagram of the structure of the cover provided in the embodiments of this application.

[0016] Attached icon number 100. Lighting devices; 1. Outer shell; 11. Mounting slot; 111. Groove; 12. Through hole; 121. Through hole; 122. Receiving groove; 13. Base; 131. Snap-fit ​​part; 16. Cover part; 161. Snap-fit ​​lug; 162. Snap-fit ​​hole; 14. Screw-fit part; 15. Breathing hole; 2. Light-transmitting components; 3. Light-emitting components; 31. Circuit board; 32. LED beads; 4. Connecting wire; 41. Mounting head; 411. Abutting part; 412. Fixing part; 42. Connecting connector; 5. Sealing components; 6. Reflective elements; 61. Light-transmitting holes; 7. Respirator; 8. Bracket; 81. Load-bearing arm; 82. First connecting arm; 83. Second connecting arm; 9. Screws; X, the first direction. Detailed Implementation

[0017] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0019] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0020] Please see Figure 1 and Figure 2 The lighting device 100 includes a housing 1, a light-transmitting element 2, a light-emitting component 3, a screw connector 14, a connecting wire 4, and a sealing element 5. The light-emitting component 3 is disposed inside the housing 1, and the light-transmitting element 2 is installed in the housing 1. The light emitted by the light-emitting component 3 can pass through the light-transmitting element 2 and be emitted to the outside, thereby illuminating the user. The screw connector 14 is located inside the housing 1. One end of the connecting wire 4 is electrically connected to the light-emitting component 3, and the other end extends from inside the housing 1 to the outside for power supply. The screw connector 14 is screwed and fixed to the connecting wire 4, thereby fixing the connecting wire 4 to the housing 1. The sealing element 5 is disposed between the connecting wire 4 and the housing 1, thereby sealing at least part of the gap between the connecting wire 4 and the housing 1, thus reducing the risk of external water or water vapor entering the interior of the housing 1 through the gap between the connecting wire 4 and the housing 1, and reducing the risk of corrosion or damage to the light-emitting component 3.

[0021] For the aforementioned casing 1, please refer to Figure 2 and Figure 4The outer casing 1 is provided with a mounting groove 11 and a through hole 12. The through hole 12 communicates with the mounting groove 11. The mounting groove 11 has a slot 111 communicating with the outside. The aforementioned light-emitting component 3 is disposed in the mounting groove 11. The light-transmitting element 2 is at least partially received in the mounting groove 11, and the light-transmitting element 2 covers the slot 111. The light-transmitting element 2 is configured to allow light to pass through. By covering the slot 111 of the mounting groove 11 with the light-transmitting element 2, the light emitted by the light-emitting component 3 can pass through the light-transmitting element 2 and be emitted to the outside, while the light-transmitting element 2 can protect the light-emitting component 3. The aforementioned screw connector 14 is received in the through hole 12. Please refer to... Figure 5 The connecting wire 4 is at least partially inserted into the through hole 12 and electrically connected to the light-emitting component 3. The portion of the connecting wire 4 inserted into the through hole 12 is screwed and fixed to the screw connector 14, thereby fixing one end of the connecting wire 4 to the housing 1. The sealing member 5 is sleeved on the connecting wire 4, and the sealing member 5 abuts against the surface of the housing 1 facing away from the groove 111 of the mounting groove 11 during installation. The sealing member 5 is used to seal the gap between the connecting wire 4 and the through hole 12, thereby reducing the risk of water or water vapor entering the mounting groove 11 from the gap between the connecting wire 4 and the through hole 12.

[0022] For the connecting wire 4 mentioned above, please refer to Figure 5 One end of the connecting wire 4 is provided with a mounting head 41. The mounting head 41 is at least partially inserted into the through hole 12, and the portion of the mounting head 41 located inside the through hole 12 is screwed and fixed to the screw connector 14, thereby fixing the mounting head 41 to the housing 1 and reducing the risk of the connecting wire 4 separating from the light-emitting component 3 when it is pulled. The sealing member 5 is sleeved on the mounting head 41. One end of the sealing member 5 abuts against the mounting head 41, and the other end of the sealing member 5 abuts against the surface of the housing 1 opposite to the groove 111 of the mounting groove 11. That is, the sealing member 5 abuts between the mounting head 41 and the housing 1, thereby achieving a seal between the connecting wire 4 and the through hole 12.

[0023] For the mounting head 41 mentioned above, please refer to... Figure 5 The mounting head 41 includes an abutment portion 411 and a fixing portion 412. One end of the fixing portion 412 is connected to the abutment portion 411. After the fixing portion 412 is inserted into the through hole 12, it is screwed and fixed to the screw connector 14, thereby achieving the fixation between the mounting head 41 and the outer shell 1. The sealing member 5 is sleeved on the fixing portion 412. Along the first direction X, the abutment portion 411 abuts against one end of the sealing member 5, and the other end of the sealing member 5 abuts against the surface of the outer shell 1 away from the slot 111. The first direction X is parallel to the arrangement direction of the light-emitting component 3 and the light-transmitting component 2.

[0024] In some embodiments, please refer to Figure 2The fixing part 412 is provided with an external thread (not labeled). After passing through the through hole 12 from the outside, the fixing part 412 is screwed and fixed to the screw connector 14 in the mounting groove 11, thereby realizing the fixation between the mounting head 41 and the outer shell 1. In this embodiment, by providing the screw connector 14 and screwing the fixing part 412 to the screw connector 14, the assembly is simple and convenient, which helps to save production costs.

[0025] In some embodiments, please refer to Figure 2 and Figure 5 The through hole 12 includes a via hole 121 and a receiving groove 122. The receiving groove 122 is located at the bottom of the mounting groove 11 and communicates with the mounting groove 11. The via hole 121 is located on the side of the receiving groove 122 opposite to the mounting groove 11, and the receiving groove 122 communicates with 121. The aforementioned screw connector 14 is received and fixed in the receiving groove 122, and there is an interference fit between the screw connector 14 and the receiving groove 122, so that when the fixing part 412 passes through the via hole 121, the fixing part 412 and the screw connector 14 can be screwed and fixed by rotating the mounting head 41. In this embodiment, by providing the receiving groove 122, the screw connector 14 is fixed in the receiving groove 122. During the process of screwing the mounting head 41 to the screw connector 14, there is no need to use a fixing device to fix the screw connector 14, which helps to reduce the assembly difficulty.

[0026] In some embodiments, the aforementioned screw connector 14 is a hexagonal nut. Viewed along the first direction X, the receiving groove 122 is hexagonal in shape, and an interference fit is formed between the screw connector 14 and the receiving groove 122. Therefore, during the process of screwing the fixing part 412 to the screw connector 14, the receiving groove 122 can restrict the screw connector 14 from rotating, so that the fixing part 412 can be smoothly screwed to the screw connector 14.

[0027] In some embodiments, please refer to Figure 2 and Figure 4 The aforementioned connecting wire 4 and sealing element 5 are both in pairs. The aforementioned outer casing 1 is provided with two through holes 12, which are spaced apart from each other and both through holes 12 communicate with the mounting groove 11. Both connecting wires 4 are electrically connected to the light-emitting component 3. The mounting head 41 of one connecting wire 4 is at least partially inserted through one through hole 12, and each mounting head 41 is fixed to the outer casing 1, thereby reducing the risk of the connecting wire 4 separating from the light-emitting component 3 when pulled. A sealing element 5 is sleeved on a mounting head 41. Along the first direction X, one end of the sealing element 5 abuts against the mounting head 41, and the other ends of both sealing elements 5 abut against the surface of the outer casing 1 opposite to the groove 111 of the mounting groove 11, so that the sealing element 5 can seal at least part of the gap between the mounting head 41 and the through hole 12.

[0028] In some embodiments, there are two screw connectors 14, both of which are disposed in the mounting groove 11. The fixing part 412 of a mounting head 41 passes through a through hole 12 and is screwed and fixed to a screw connector 14, thereby achieving the fixation between the mounting head 41 and the outer shell 1.

[0029] In some embodiments, please refer to Figure 2 The light-emitting component 3 includes a circuit board 31 and a plurality of LED beads 32. The circuit board 31 is housed in the mounting groove 11 and is fixed to the housing 1. The aforementioned connecting wire 4 is electrically connected to the circuit board 31. The plurality of LED beads 32 are spaced apart on the circuit board 31, and the circuit board 31 is used to control the light emission of the LED beads 32.

[0030] In some embodiments, please refer to Figure 2 and Figure 4 The lighting device 100 also includes a reflector 6, which is located between the circuit board 31 and the light-transmitting element 2 along the first direction X. The reflector 6 has a plurality of light-transmitting holes 61, which penetrate the reflector 6 along the first direction X, with one LED 32 exposed in each light-transmitting hole 61. The reflector 6 is configured to emit light so that the light emitted by the LED 32 can be reflected by the sidewall of the light-transmitting hole 61 and directed towards the light-transmitting element 2, and then emitted to the outside. In this embodiment, by providing the reflector 6 and the light-transmitting holes 61 within it, exposing the LED 32 to the light-transmitting holes 61, the light emitted by the LED 32 is concentrated towards the slot 111 of the mounting groove 11 by the reflection from the sidewall of the light-transmitting hole 61, which helps to improve the utilization rate of light and thus enhance the brightness of the lighting device 100.

[0031] In some embodiments, please refer to Figure 2 From the end of the light-transmitting hole 61 closest to the circuit board 31 to the end of the light-transmitting hole 61 furthest from the circuit board 31, the cross-sectional area of ​​the light-transmitting hole 61 gradually increases in the direction perpendicular to the first direction X. That is to say, the shape of the light-transmitting hole 61 is roughly trumpet-shaped. This arrangement allows the light emitted by the lamp bead 32 to be scattered out to the outside, which is beneficial to increasing the illumination area of ​​the lighting device 100 and expanding the lighting range.

[0032] In some embodiments, please refer to Figure 2 The outer casing 1 is provided with a vent 15, one end of which is connected to the mounting groove 11, and the other end of which is connected to the outside. The lighting device 100 also includes a breather 7, which is disposed in the vent 15. The breather 7 is used to balance the air pressure difference between the inside of the mounting groove 11 and the outside, reducing the risk of water vapor from the outside entering the mounting groove 11 due to excessive air pressure difference, and thus improving the waterproof performance of the lighting device 100.

[0033] In some embodiments, the breathing hole 15 is provided with an internal thread (not shown), and the respirator 7 is provided with an external thread (not labeled), and the respirator 7 is screwed and fixed in the breathing hole 15.

[0034] In some embodiments, not shown, the lighting device 100 further includes a waterproof gasket fitted over the respirator 7 and abutting against the surface of the housing 1 facing away from the slot 111, thereby sealing at least a portion of the gap between the respirator 7 and the breathing hole 15, which helps to reduce the risk of external water vapor entering the mounting slot 11 from the gap between the respirator 7 and the breathing hole 15.

[0035] In some embodiments, please refer to Figure 2 and Figure 4 The outer casing 1 includes a base 13 and a cover 16. The cover 16 is fixed to the base 13, and the base 13 and the cover 16 together form the aforementioned mounting groove 11. The aforementioned through hole 12, receiving groove 122, and vent hole 15 are all provided in the base 13, and the groove opening 111 of the mounting groove 11 is provided in the cover 16. When the cover 16 is fixed to the base 13, the edge of the light-transmitting element 2 abuts against the cover 16, the reflector 6 abuts against the end of the light-transmitting element 2 away from the cover 16, and the end of the reflector 6 away from the cover 16 abuts against the circuit board 31, which is fixed to the base 13. With this configuration, it is not necessary to fix the reflector 6 and the light-transmitting element 2 individually. During the process of fixing the cover 16 to the base 13, the cover 16 can press the reflector 6 and the light-transmitting element 2 tightly into the mounting groove 11, making assembly simple and convenient.

[0036] In some embodiments, please refer to Figure 2 and Figure 6 The base 13 is provided with a snap-fit ​​part 131, which is disposed on the side wall of the mounting groove 11. The cover 16 is provided with a snap-fit ​​lug 161, which is provided with a snap-fit ​​hole 162. The snap-fit ​​part 131 snaps into the snap-fit ​​hole 162, thereby fixing the cover 16 to the base 13. In this embodiment, the cover 16 and the base 13 are fixed by snap-fit, which is simple and convenient to assemble and helps to improve the assembly efficiency of the lighting device 100.

[0037] In some embodiments, the base 13 is provided with a plurality of snap-fit ​​portions 131, which are spaced apart on the sidewall of the mounting groove 11. The cover 16 is provided with a plurality of snap-fit ​​lugs 161, which are spaced apart along the edge of the cover 16. Each snap-fit ​​lug 161 is provided with a snap hole 162. A snap-fit ​​portion 131 snaps into the snap hole 162 on a snap-fit ​​lug 161, thereby snapping and fixing the cover 16 to the base 13. In this embodiment, by providing a plurality of snap-fit ​​portions 131 and a plurality of snap-fit ​​lugs 161, the stability of the fixation between the cover 16 and the base 13 is improved.

[0038] In some embodiments, please refer to Figure 1 and Figure 2 The lighting device 100 also includes a bracket 8, and the base 13 is connected to the bracket 8 by screws 9. The bracket 8 is used to support the base 13, thereby providing support for the lighting device 100.

[0039] In some embodiments, the bracket 8 includes a support arm 81, a first connecting arm 82, and a second connecting arm 83. One end of the first connecting arm 82 is connected to one end of the support arm 81, and one end of the second connecting arm 83 is connected to the other end of the support arm 81. The base 13 is located between the first connecting arm 82 and the second connecting arm 83, and the first connecting arm 82 and the base 13, as well as the second connecting arm 83 and the base 13, are connected by screws 9.

[0040] In some embodiments, the base 13 can rotate relative to the bracket 8 under the action of an external force, thereby adjusting the lighting angle of the lighting device 100. When the external force is removed, the base 13 remains stationary relative to the bracket 8 under the action of friction between the base 13 and the first connecting arm 82 and between the base 13 and the second connecting arm 83, so that the risk of the base 13 rotating relative to the bracket 8 can be reduced when the lighting device 100 is illuminating.

[0041] In this embodiment, by providing a mounting head 41 at one end of the connecting wire 4, with the mounting head 41 at least partially penetrating the through hole 12 of the housing 1 and being fixed to the housing 1, the risk of the connecting wire 4 detaching from the housing 1 can be reduced, thereby reducing the risk of the connecting wire 4 separating from the light-emitting component 3 when pulled. By sleeved the sealing member 5 on the mounting head 41 and abutting between the mounting head 41 and the housing 1, the sealing performance between the mounting head 41 and the housing 1 can be improved, reducing the risk of external water or water vapor entering the mounting groove 11 from the gap between the mounting head 41 and the housing 1.

[0042] This application also provides an embodiment of a lighting system, which includes the lighting device 100 described above.

[0043] In some embodiments, please refer to Figure 2 The end of the connecting wire 4 away from the outer casing 1 is provided with a connector 42, which is used to connect to the power source so as to provide power to the lighting device 100.

[0044] In some embodiments, the lighting system includes two or more lighting devices 100, which are electrically connected to each other via a connector 42, thereby allowing multiple lighting devices 100 to be connected in series or in parallel to improve the brightness of the lighting system.

[0045] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A lighting device, characterized in that, include: The outer casing is provided with a mounting groove and a through hole, the through hole communicating with the mounting groove, and the mounting groove having an opening communicating with the outside. A light-transmitting element is at least partially housed in the mounting groove, and the light-transmitting element covers the opening of the groove; A light-emitting component is disposed in the mounting groove, and the light emitted by the light-emitting component is emitted to the outside through the light-transmitting element; A screw-in connector is received in the through hole; A connecting wire is provided with a mounting head at one end. The mounting head is at least partially inserted into the through hole and is screwed and fixed to the screw connector. The connecting wire is electrically connected to the light-emitting component. A sealing element is fitted onto the mounting head, and the sealing element abuts between the mounting head and the outer shell.

2. The lighting device according to claim 1, characterized in that, The mounting head includes an abutting part and a fixing part. One end of the fixing part is connected to the abutting part. The sealing element is sleeved on the fixing part. The abutting part abuts against the sealing element. The fixing part passes through the through hole and is used to be screwed and fixed to the screw connector.

3. The lighting device according to claim 1, characterized in that, The through hole includes a receiving groove and a via hole. The receiving groove communicates with the via hole and the receiving groove communicates with the mounting groove. The screw connector is received in the receiving groove and there is an interference fit between the screw connector and the receiving groove. The mounting head passes through the via hole and is screwed and fixed to the screw connector.

4. The lighting device according to claim 1, characterized in that, The lighting device further includes a bracket, which includes a support arm, a first connecting arm, and a second connecting arm. One end of the first connecting arm is connected to one end of the support arm, and one end of the second connecting arm is connected to the other end of the support arm. The housing is located between the first connecting arm and the second connecting arm, and the housing is connected to the end of the first connecting arm away from the support arm, and the housing is connected to the end of the second connecting arm away from the support arm.

5. The lighting device according to any one of claims 1-4, characterized in that, The number of the connecting wire and the sealing element are both two. The outer shell is provided with two through holes. The mounting head of one of the connecting wires is at least partially inserted through one of the through holes and the mounting head is fixed to the outer shell. The sealing element is sleeved on one of the mounting heads. Both sealing elements abut against the surface of the outer shell away from the groove.

6. The lighting device according to claim 1, characterized in that, The light-emitting component includes a circuit board and a plurality of LED beads, which are spaced apart on the circuit board. The circuit board is housed in the mounting groove, and the connecting wires are electrically connected to the circuit board through the through holes.

7. The lighting device according to claim 6, characterized in that, The lighting device includes a reflector located between the circuit board and the light-transmitting component. The reflector has a plurality of light-transmitting holes that penetrate the reflector along a first direction parallel to the arrangement direction of the light-emitting component and the light-transmitting component. One of the LED beads is exposed through one of the light-transmitting holes.

8. The lighting device according to claim 7, characterized in that, From the end of the light-transmitting hole closest to the circuit board to the end of the light-transmitting hole furthest from the circuit board, the cross-sectional area of ​​the light-transmitting hole perpendicular to the first direction gradually increases.

9. The lighting device according to claim 1, characterized in that, The lighting device includes a breather, the housing is provided with a breather hole, the breather hole is connected to the mounting groove, and the breather is disposed in the breather hole.

10. A lighting system, characterized in that, It includes two or more lighting devices as described in any one of claims 1-9, with adjacent lighting devices electrically connected by a connector.

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