A cabin light

Abstract

The utility model discloses a cabin top lamp, including light source subassembly, the cylindrical lamp shade of casing in light source subassembly outside and set up in the base of lamp shade axial both ends, the base includes with the coaxial setting of lamp shade connecting portion, and with the installation of communicating setting connecting portion, the installation is equipped with the wire inlet for cable passing, one end of connecting portion is sealedly connected with lamp shade, and the other end is equipped with the sealing end cover, be equipped with the control device for driving light source subassembly work in connecting portion, control device swing joint in connecting portion, and through plug -in type butt joint terminal and light source subassembly detachable electric connection. Through the setting of base installation part and connecting portion, make the base, end cover and lamp shade form integrated closed space, and the wiring end of cable and cabin top lamp hides in the closed space, avoids the cable exposure after cabin top lamp installation, increases the sealing performance of cabin top lamp, satisfies the light illumination requirement of 360 degree circumferential light emission in specific occasion.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a cabin roof light. Background Technology

[0002] The harsh environments on ships, such as engine rooms, dry cargo holds, shaft tunnels, pipe tunnels, and open decks, are subject to problems such as dripping water, splashing water, high humidity, and salt spray corrosion, which places extremely high demands on the sealing and reliability of lighting fixtures.

[0003] Chinese patent document CN218721136U discloses an LED cabin dome light. The dome light body includes a junction box and at least one lighting module. The lighting module includes a lampshade and a light source assembly. End caps are provided at both ends of the lampshade, and the end caps are detachably connected to the lampshade. The light source assembly is disposed in the enclosed space formed by the lampshade and the end caps. The junction box is disposed at the end of the end caps and is electrically connected to the light source assembly. The lighting module is fixed and installed on the base using a base bracket and clamps fixed to the base bracket.

[0004] In the aforementioned disclosed technical solution, the cable entry device for the cabin top light junction box is a cable lock head. The cable lock head is exposed, and the cable entry point is prone to leakage, which not only affects the aesthetics but is also a weak link in waterproof sealing. Summary of the Invention

[0005] The purpose of this utility model is to provide a cabin roof light with an optimized base structure to avoid exposed cables after installation and to increase the sealing performance of the cabin roof light.

[0006] To solve the above-mentioned technical problems, the present invention provides a technical solution as follows: a cabin ceiling light includes a light source assembly, a cylindrical lampshade sleeved on the outside of the light source assembly, and a base disposed at both axial ends of the lampshade. The base includes a connecting part coaxially disposed with the lampshade and a mounting part communicating with the connecting part. The mounting part is provided with an inlet for cable passage. One end of the connecting part is sealed to the lampshade, and the other end is provided with a sealing end cap. A control device for driving the light source assembly is disposed inside the connecting part. The control device is movably connected inside the connecting part and is detachably electrically connected to the light source assembly through a plug-in terminal.

[0007] Furthermore, the light source assembly includes a multi-prism heat sink, and each side of the heat sink is provided with an independent light source plate, forming a 360° circumferential light-emitting structure.

[0008] Furthermore, the heat sink has a hexagonal prism structure, and the number of light source plates is six, which are respectively fixed on the six sides of the heat sink.

[0009] Furthermore, the control device consists of two units, each of which is connected to and controls the three light source boards.

[0010] Furthermore, the pluggable terminal includes a first terminal assembly disposed on the light source assembly and a second terminal assembly disposed on the control device; the connection portion is provided with a guide groove along the axial direction, and the control device can slide along the guide groove, so that the second terminal assembly can be accurately inserted into or detached from the first terminal assembly.

[0011] Furthermore, the guide groove is provided with two grooves, which are evenly distributed on the inner wall of the connecting part. A pressure plate is fixedly provided at the end of the control device. The pressure plate has a protruding guide block that slides with the guide groove. The guide groove limits the guide block in a circumferential direction to prevent the control device from rotating relative to the connecting part.

[0012] Furthermore, the connecting part is connected to the lampshade by a threaded structure, and the connection is sealed with sealant.

[0013] Furthermore, a sealing ring is provided between the connecting part and the end cap to seal the gap between the interface of the connecting part and the end cap.

[0014] Furthermore, the mounting part is provided with a wire inlet at one end away from the connecting part, and a sealing gasket is provided at the wire inlet. The sealing gasket is provided with a through hole for cable insertion. The light source assembly is provided with a plug-in terminal at one end away from the control device. The external cable passes through the through hole and the wire inlet, is guided through the inner cavity of the mounting part to the connecting part, and is electrically connected to the light source assembly through the plug-in terminal.

[0015] The cabin roof light provided by this utility model, compared with the prior art, forms an integrated enclosed space by setting up a base mounting part and a connecting part, making the base, end cover and lampshade an integrated enclosed space. The light source component, driving device and cable wiring terminals of the cabin roof light are hidden in the enclosed space, which not only increases the convenience of cabin roof light installation, but also avoids cable exposure after installation, and helps to improve the overall sealing effect of the cabin roof light and increase the sealing performance. In particular, compared with the traditional cabin roof light with a light emission angle of about 120°, the independent light source plate set on the side of the multi-prism heat sink forms a 360° circumferential light emission structure, effectively reducing the dark areas. In particular, the control device is slidably connected in the base through the guide groove, which allows the control device to be electrically connected to the light source component by blind insertion, which increases the convenience of disassembling and assembling the control device and the light source component, and improves the convenience of cabin roof light installation and maintenance. Attached Figure Description

[0016] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0017] Figure 1 This is a schematic diagram of the exploded structure of the cabin roof light in an embodiment of this utility model; Figure 2 This is a three-dimensional structural diagram of the cabin roof light in an embodiment of this utility model; Figure 3 This is a three-dimensional structural diagram of the light source assembly in an embodiment of this utility model; Figure 4 This is a schematic diagram of the axial end face structure of the light source assembly in an embodiment of this utility model; Figure 5 This is a cross-sectional view of one end of the cabin roof light with a plug-in terminal block in an embodiment of the present invention; Figure 6 This is a cross-sectional view of one end of the cabin roof light equipped with a control device in an embodiment of the present invention; Figure 7 This is a schematic diagram of the control device structure in an embodiment of the present invention; Figure 8 This is a schematic diagram of the axial end face structure of the base connection part in an embodiment of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Light source assembly; 11. Heat sink; 12. Light source board; 13. Fixing bracket; 14. Plug-in terminal block; 15. Terminal block bracket; 2. Lampshade; 3. Base; 31. Connecting part; 311. Guide groove; 32. Mounting part; 321. Cable inlet; 33. Sealing gasket; 331. Cable hole; 34. Sealant; 4. End cap; 41. Sealing ring; 5. Control device; 51. Pressure plate; 52. Guide block; 53. Heat sink; 6. Plug-in terminal block; 61. First terminal block assembly; 62. Second terminal block assembly. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0020] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] like Figure 1-8 As shown, one embodiment of this utility model relates to a cabin ceiling light, including a light source assembly 1, a cylindrical lampshade 2 sleeved on the outside of the light source assembly 1, and a base 3 disposed at both axial ends of the lampshade 2. The base 3 includes a connecting part 31 coaxially disposed with the lampshade 2, and a mounting part 32 communicating with the connecting part 31. One end of the connecting part 31 is sealed to the lampshade 2, and the other end is provided with a sealing end cap 4. A control device 5 for driving the light source assembly 1 is disposed inside the connecting part 31. The control device 5 is movably connected inside the connecting part 31 and is detachably electrically connected to the light source assembly 1 through a pluggable docking terminal 6. Preferably, the control device 5 is an independent modular component, disposed inside the connecting part 31 by a linear sliding connection, and can be electrically connected to the pluggable docking terminal 6 by blind insertion. In one example, the base 3 includes a connecting portion 31 and a mounting portion 32 perpendicular to the connecting portion 31. The mounting portion 32 has a cable inlet 321 at one end away from the connecting portion 31. A sealing gasket 33 is provided at the cable inlet 321, and the sealing gasket 33 has a through-hole 331 for cable insertion. One end of the light source assembly 1 has a control device 5, and the other end has a plug-in terminal block 14. An external cable passes through the through-hole 331 and the cable inlet 321, is guided through the inner cavity of the mounting portion 32 to the connecting portion 31, and is electrically connected to the plug-in terminal block 14. It then connects to a pluggable connector 6 through the inner hole of the light source assembly 1, thus achieving electrical connection between the cable and the light source assembly 1. The cable inlet 321 in the mounting portion 32 effectively prevents the cable lead-out end from being exposed within the visible range after the cabin light is installed. Simultaneously, the sealed connection between the cable and the through-hole 331 of the sealing gasket 33 further enhances the waterproof sealing effect of the cabin light top. With the installation part 32 and the connecting part 31 of the base 3, the base 3, the end cover 4 and the lamp cover 2 form an integrated closed space. The light source component 1, the driving device and the wiring terminals of the cable and the cabin roof light are hidden in the closed space. This not only increases the convenience of the cabin roof light installation and avoids the cable being exposed after the cabin roof light is installed, but also helps to improve the overall sealing effect of the cabin roof light and increase the sealing performance of the cabin roof light. This allows the cabin roof light to achieve the protection level of IP68 and can adapt to the working environment temperature of -30℃ to 55℃, meeting the usage requirements of ship engine room, dry cargo room, shaft tunnel, pipe tunnel and open deck.

[0022] like Figure 3-4As shown, one embodiment relates to a cabin overhead light, the light source assembly 1 of which includes a polygonal prism heat sink 11. Each side of the heat sink 11 is provided with an independent light source plate 12, forming a 360° circumferential light-emitting structure, which can effectively reduce dark areas. Preferably, the heat sink 11 is a hexagonal prism structure, and there are six light source plates 12, which are respectively fixed on the six sides of the heat sink 11. The light source assembly 1 is provided with a fixing bracket 13 on its axial direction for supporting and fixing the light source assembly 1. The fixing bracket 13 is equipped with a first terminal assembly 61. The other end of the light source assembly 1 is provided with a terminal bracket 15 on its axial direction for supporting and fixing the other end of the light source assembly 1. The terminal bracket 15 is equipped with a plug-in terminal 14.

[0023] like Figure 5-7 As shown, one embodiment relates to a cabin overhead light, wherein the heat sink 11 of the light source assembly 1 has a hexagonal prism structure, and the number of light source plates 12 is six, respectively fixed on the six sides of the heat sink 11. There are two control devices 5, each connected to and controlling three of the light source plates 12. The two control devices 5 provide driving power to the six light source plates 12, reducing the power consumption of the control devices. By independently controlling the three light source plates with two control devices, even if a single control device fails, some light source plates can still operate normally, effectively increasing the stability and lifespan of the cabin overhead light's driving illumination. In other examples, the number of control devices is not limited to two; different numbers of control devices can be set according to the usage scenario and the number of light source plates. In one example, the two control devices 5 are coaxially arranged and clamped and fixed by a heat sink 53 and a pressure plate 51, forming a stable control device 5 module. A heat sink 53 is also provided between the two control devices 5 to increase the heat dissipation performance of the control device 5. The control device 5 and the light source assembly 1 are electrically connected via a pluggable terminal block 6. The pluggable terminal block 6 includes a first terminal block assembly 61 disposed on the light source assembly 1 and a second terminal block assembly 62 disposed on the control device 5. Preferably, for the convenience of installation and maintenance of the cabin light and to increase the ease of disassembly and assembly of the control device 5 and the light source assembly 1, the inner wall of the connecting part 31 of the base 3 is provided with a guide groove 311 along the axial direction. There are two guide grooves 311, which are evenly distributed on the inner wall of the connecting part 31. The pressure plate 51 that fixes the control device 5 protrudes and is provided with a guide block 52 corresponding to the guide groove 311. During assembly, the guide block 52 is slidably disposed in the guide groove 311, so that the control device 5 can slide along the axial direction of the guide groove 311. The guide groove 311 circumferentially limits the guide block 52 to prevent the control device 5 from rotating relative to the connecting part 31, so that the second terminal block assembly 62 can be accurately inserted into or disengaged from the first terminal block assembly 61 in the direction limited by the guide groove 311.

[0024] like Figure 5As shown, in one embodiment, a cabin top light is provided. In order to increase the overall sealing effect, the connecting part 31 of the base 3 is connected to the lamp cover 2 by a threaded structure, and the connection is sealed by filling sealant 34. The connecting part 31 is threaded to the end cover 4, and a sealing ring 41 for sealing the interface gap between the connecting part 31 and the end cover 4 is also provided.

[0025] The above-ground light provided by this utility model, through the setting of the base mounting part and the connecting part, makes the base, end cover and lampshade form an integrated closed space. The light source component, driving device and cable connection terminals of the overhead light are hidden in the closed space, which not only increases the convenience of overhead light installation and avoids cable exposure after installation, but also helps to improve the overall sealing effect of the overhead light and increase the sealing performance. In particular, compared with the traditional overhead light with a light emission angle of about 120°, the independent light source plate set on the side of the multi-prism heat sink forms a 360° circumferential light emission structure, effectively reducing the dark areas. In particular, the control device is slidably connected in the base through the guide groove, which allows the control device to be electrically connected to the light source component by blind plugging, which increases the convenience of disassembling and assembling the control device and the light source component, and improves the convenience of overhead light installation and maintenance.

[0026] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A cabin overhead light, characterized in that, The device includes a light source assembly (1), a cylindrical lampshade (2) sleeved on the outside of the light source assembly (1), and a base (3) disposed at both ends of the lampshade (2) along its axial direction. The base (3) includes a connecting part (31) coaxially disposed with the lampshade (2) and a mounting part (32) communicating with the connecting part (31). The mounting part (32) is provided with an inlet (321) for cable passage. One end of the connecting part (31) is sealed to the lampshade (2), and the other end is provided with a sealing end cap (4). The connecting part (31) is provided with a control device (5) for driving the light source assembly (1) to work. The control device (5) is movably connected to the connecting part (31) and is detachably electrically connected to the light source assembly (1) through a plug-in docking terminal (6).

2. The cabin overhead light according to claim 1, characterized in that, The light source assembly (1) includes a multi-prism heat sink (11), and each heat sink (11) has an independent light source plate (12) on its side, forming a 360° circumferential light-emitting structure.

3. The cabin ceiling light according to claim 2, characterized in that, The heat sink (11) has a hexagonal prism structure, and there are six light source plates (12), which are fixed on the six sides of the heat sink (11).

4. The cabin ceiling light according to claim 3, characterized in that, The control device (5) consists of two units, each of which is connected to control the three light source boards (12).

5. The cabin overhead light according to claim 1, characterized in that, The pluggable terminal (6) includes a first terminal assembly (61) disposed on the light source assembly (1) and a second terminal assembly (62) disposed on the control device (5); the connecting part (31) is provided with a guide groove (311) along the axial direction, and the control device (5) can slide along the guide groove (311) so that the second terminal assembly (62) can be accurately inserted into or detached from the first terminal assembly (61).

6. The cabin overhead light according to claim 5, characterized in that, Two guide grooves (311) are provided, evenly distributed on the inner wall of the connecting part (31). A pressure plate (51) is fixedly provided at the end of the control device (5). The pressure plate (51) is provided with a guide block (52) that slides with the guide groove (311). The guide groove (311) circumferentially limits the guide block (52) to prevent the control device (5) from rotating relative to the connecting part (31).

7. The cabin ceiling light according to claim 1, characterized in that, The connecting part (31) is connected to the lampshade (2) by a threaded structure, and the connection is sealed by filling sealant (34).

8. The cabin overhead light according to claim 1, characterized in that, A sealing ring (41) is provided between the connecting part (31) and the end cap (4) to seal the gap between the interface of the connecting part (31) and the end cap (4).

9. The cabin overhead light according to any one of claims 1-8, characterized in that, The mounting part (32) has a wire inlet (321) at one end away from the connecting part (31). A sealing gasket (33) is provided at the wire inlet (321). The sealing gasket (33) has a through hole (331) for cable insertion. The light source assembly (1) has a plug-in terminal (14) at one end away from the control device (5). An external cable passes through the through hole (331) and the wire inlet (321), is guided through the inner cavity of the mounting part (32) to the connecting part (31), and is electrically connected to the light source assembly (1) through the plug-in terminal (14).

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