An ultra-thin marker light

Abstract

The utility model discloses a kind of ultra-thin marker lights, characterized in that, comprising: light guide plate;Light source module is set to the side of the light guide plate, the light source module includes light source substrate and the LED light source and electronic component arranged thereon, the light output end of the LED light source is incident towards the side of the light guide plate;Protective member is set to the side of the light guide plate and is adjacent contact with the light guide plate, the light source module is contained in the protective member;Lamp shell assembly, including detachably connected first shell and second shell, the light guide plate and the protective member are encapsulated in the accommodating space formed by the first shell and second shell. Utilize protective member to protect light source module, effectively avoid local stress directly impact electronic component and / or LED light source, cause electronic component / or LED light source damage, the protective member can support lamp shell surface, avoid lamp shell surface and occur breakage due to local stress too large, satisfy GB17945-2024 national standard stipulated mechanical environment tolerance performance test.

Description

Technical Field

[0001] This utility model relates to the field of emergency lighting equipment, specifically to an ultra-thin marker light. Background Technology

[0002] Fire emergency evacuation signs and lights are key facilities for ensuring fire safety in public places. They are mandatory fire protection products and are widely used in various complex environments, especially in critical locations within fire escape routes. Their core function is to provide clear and reliable evacuation route guidance in emergencies such as power outages and fires.

[0003] Existing ultra-thin sign lights typically consist of a lamp housing (comprising a front and rear cover), a light guide plate, and a circuit board housing electronic components. The lamp housing surface has light-transmitting holes with specific marking patterns; light emitted from the internal light guide plate is projected outwards through these holes to form the indicator mark. However, with the promulgation and implementation of the mandatory national standard GB17945-2024, Article 5.4.4 clearly stipulates that "after the test, the system equipment should not suffer breakage or mechanical damage, and fasteners should not loosen or fall off." However, due to the densely packed electronic components of varying heights on the circuit board, its surface exhibits significant unevenness. When this non-planar circuit board assembly is placed inside the lamp housing, a) the electronic components on the circuit board may be damaged due to excessive local stress; b) the lamp housing surface lacks support and may break due to excessive local stress. Therefore, the structural design of ultra-thin sign lights is difficult to meet the mechanical environmental tolerance performance test requirements of the GB17945 national standard. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an ultra-thin marker light that has a simple structure, low price, and meets the mechanical environmental tolerance performance test requirements of the national standard GB17945-2024.

[0005] To achieve the above objectives, this utility model provides an ultra-thin marker light, comprising: Light guide plate; A light source module is disposed on the side of the light guide plate. The light source module includes a light source substrate and LED light sources and electronic components disposed thereon. The light output end of the LED light source is incident on the side of the light guide plate. A protective component is disposed on the side of the light guide plate and in contact with the light guide plate, and the light source module is housed within the protective component; The lamp housing assembly includes a detachably connected first housing and a second housing, wherein the light guide plate and the protective component are encapsulated within the accommodating space formed by the first housing and the second housing; the first housing and / or the second housing are provided with a light-transmitting hole, and the light emitted from the light guide plate is displayed outward through the light-transmitting hole.

[0006] Preferably, the thickness of the light guide plate is adapted to the thickness of the protective component.

[0007] Preferably, the protective component includes a protective surface and a plate-laying portion, the plate-laying portion including a support structure formed by the protective surface protruding upwards, and the light source module is disposed on the support structure.

[0008] Preferably, the light source substrate is a single-sided fabricated board, and the LED light source and the electronic components are disposed on the first surface of the light source substrate facing the protective surface; the LED light source is located in the edge region of the light source substrate and faces the side of the light guide plate; the electronic components are located in the gap region between the support structures; the top surface of the support structure is in contact with the first surface of the light source substrate.

[0009] Preferably, the plate portion further includes a protective edge extending upward from the edge of the protective surface, and the second surface of the light source substrate facing away from the protective surface is flush with the top surface of the protective edge.

[0010] Preferably, the second surface of the light source substrate is in contact with the inner wall surface of the lamp housing assembly.

[0011] Preferably, the first housing is provided with a light-transmitting hole, and the second surface of the light source substrate is in contact with the inner wall surface of the first housing.

[0012] Preferably, the light source module is constrained and fixed between the inner wall surface of the lamp housing assembly, the side surface of the light guide plate, and the limiting space formed by the support structure and the protective edge.

[0013] Preferably, the light guide plate includes a first corner portion and a second corner portion, wherein the first corner portion contacts the corresponding corner portion of the lamp housing assembly, and their geometric shapes are compatible; A) The first corner and the corresponding corner of the lamp housing assembly are both rounded corner structures; or... B) The first corner and the corresponding corner of the lamp housing assembly are both right-angle structures.

[0014] Preferably, the protective component includes a third corner portion, which contacts the corresponding corner portion of the lamp housing assembly and has a matching geometry; A) The third corner and the corresponding corners of the lamp housing assembly are both rounded corner structures; or... B) The third corner and the corresponding corner of the lamp housing assembly are both right-angle structures.

[0015] Preferably, the protective component is provided with a positioning part, which is adjacent to and shaped to the second corner of the light guide plate; A) When the second corner is rounded, the positioning part has a matching arc-shaped inner contour; or, B) When the second corner is a right angle, the positioning part has a vertical plane inner contour that is adapted to it.

[0016] Preferably, the protective component includes a plate-laying part and a positioning part. The outline of the plate-laying part is adapted to the shape of the light source module to form a hollow structure to accommodate the light source module. The positioning part is disposed at both ends of the plate-laying part and is a solid structure.

[0017] Preferably, the protective component is provided with a wire groove, the lamp housing assembly is provided with a first wire outlet hole, the wire groove connects the plate portion and the first wire outlet hole, the light guide plate is provided with a second corner portion, the second corner portion is a rounded corner structure, the first wire outlet hole is located in the area above the second corner portion, the light source module includes a wire, the surface of the wire is formed with a wire fixing structure, and the wire fixing structure is located in the first wire outlet hole.

[0018] Preferably, the protective member is provided with a positioning part, the positioning part having an arcuate inner contour adapted to the second corner part, there is a gap between the positioning part and the second corner part forming a notch, the first wire outlet hole is disposed in the area above the notch, and the wire fixing structure is disposed in the notch and located between the positioning part and the second corner part.

[0019] Preferably, the protective component is provided with a wire groove, the first housing is provided with a light-transmitting hole, the second housing is provided with a first wire outlet hole, the wire groove is provided with a second wire outlet hole coaxially aligned with the first wire outlet hole, the light source module includes a wire, the surface of the wire is formed with a wire fixing structure, and the wire fixing structure is disposed in the first wire outlet hole and the second wire outlet hole.

[0020] Preferably, there are two light guide plates, the protective component is disposed between the two light guide plates, and the light source module is provided with two rows of LED light sources, which respectively illuminate the adjacent sides of the two light guide plates.

[0021] Preferably, the protective component has a first protective surface and a second protective surface, and the light source module is disposed between the first protective surface and the second protective surface; A) The thickness of the light guide plate is adapted to the thickness of the protective component; or, B) The thickness of the light guide plate is less than the thickness of the protective component, and the inner wall of the first housing and / or the second housing is formed with a protruding placement portion, and the protective component is disposed in the placement portion.

[0022] Preferably, the thickness of the light guide plate is less than the thickness of the protective member, and the inner wall of the first housing and / or the second housing is formed with a protruding placement portion, and the protective member is disposed in the placement portion.

[0023] Preferably, the sum of the surface area of ​​the light guide plate and the surface area of ​​the protective component is adapted to the supporting area of ​​the inner wall of the lamp housing assembly in the corresponding region.

[0024] Preferably, the light guide plate is made of glass with a thickness between 16 mm and 40 mm.

[0025] Compared with the prior art, the beneficial effects of this utility model are: (1) The protective component protects the light source module, effectively avoiding the direct impact of local stress on electronic components and / or LED light source, causing damage to electronic components and / or LED light source. The protective component can support the surface of the lamp housing, preventing the surface of the lamp housing from being damaged due to excessive local stress, and meeting the mechanical environment tolerance test specified in GB17945-2024 national standard; (2) By protecting the light source module with the protective component, even if the material thickness of the lamp housing is reduced, the mechanical environment tolerance test specified in GB17945-2024 national standard can still be met, greatly reducing product costs; (3) The light source module and the protective component are both set on the side of the light guide plate, effectively reducing the thickness of the lamp, making the structure simple and the product more refined and beautiful. Attached Figure Description

[0026] Figure 1 This is a perspective view of the appearance of this utility model.

[0027] Figure 2 This is an exploded perspective view of the front of this utility model.

[0028] Figure 3 This is an exploded perspective view of the first shell after separation in this utility model.

[0029] Figure 4 It is a frontal three-dimensional view of the light guide plate, light source assembly, and protective components after they are separated.

[0030] Figure 5 It is a rear-view 3D view after the light guide plate, light source assembly, and protective components are separated.

[0031] Figure 6 yes Figure 1 Sectional view of AA.

[0032] Figure 7 yes Figure 3 A magnified view of BB.

[0033] 1-Light guide plate; 11-First corner; 12-Second corner; 2-Light source module; 21-Light source substrate; 22-LED light source; 23-Electronic component; 24-Wire; 25-Wire fixing structure; 3-Protective component; 31-Protective surface; 32-Third corner; 33-Positioning part; 34-Wire groove; 35-Notch; 36-Second wire outlet hole; 4-Plate placement part; 41-Supporting structure; 42-Protective edge; 5-Lamp housing assembly; 51-First housing; 52-Second housing; 53-Marking light transmission hole; 54-First wire outlet hole. Detailed Implementation

[0034] The technical solution of this utility model will be further described below with reference to specific embodiments.

[0035] like Figures 1 to 7 As shown, this utility model provides an ultra-thin marker light, comprising: a light guide plate 1; a light source module 2 disposed on the side of the light guide plate 1, the light source module 2 including a light source substrate 21 and LED light sources 22 and electronic components 23 disposed thereon, the light output end of the LED light source 22 incident on the side of the light guide plate 1; a protective member 3 disposed on the side of the light guide plate 1 and in contact with the light guide plate 1, the light source module 2 being housed within the protective member 3; and a lamp housing assembly 5 including a detachably connected first housing 51 and a second housing 52, the light guide plate 1 and the protective member 3 being encapsulated within the accommodating space formed by the first housing 51 and the second housing 52; a marker light-transmitting hole 53 is provided on the first housing 51 and / or the second housing 52, and the light emitted from the light guide plate 1 is displayed outward through the marker light-transmitting hole 53. The protective component 3 protects the light source module 2, effectively preventing localized stress from directly impacting the electronic components 23 and / or the LED light source 22, thus avoiding damage to them. The protective component 3 supports the surface of the lamp housing assembly 5, preventing damage due to excessive localized stress, and meets the mechanical environment tolerance test requirements of GB17945-2024. By protecting the light source module 2 with the protective component 3, even with a reduction in the thickness of the lamp housing manufacturing material, the mechanical environment tolerance test requirements of GB17945-2024 can still be met, greatly reducing product costs. Both the light source module 2 and the protective component 3 are located on the side of the light guide plate 1, effectively reducing the thickness of the lamp, resulting in a simpler structure and a more refined and aesthetically pleasing product. It should be noted that the left, right, top, bottom and corner of the light guide plate 1 are all sides of the light guide plate 1. When the light source module 2 and the protective component 3 are set in the above positions, the design purpose of this utility model can also be achieved, and they should be within the protection scope of this utility model.

[0036] The thickness of the light guide plate 1 is adapted to the thickness of the protective component 3. This structure makes the surface of the lamp housing assembly 5 flat, the product more beautiful, and reduces the gap in the internal accommodating space of the lamp housing assembly 5, making it easier to meet the mechanical environment resistance performance test specified in GB17945-2024 national standard.

[0037] The protective component 3 includes a protective surface 31 and a mounting plate portion 4. The mounting plate portion 4 includes a support structure 41 formed by the upward protrusion of the protective surface 31. The light source module 2 is disposed on the support structure 41. The light source substrate 21 is a single-sided layout board. The LED light source 22 and the electronic component 23 are arranged on the first surface of the light source substrate 21 facing the protective surface 31. The LED light source 22 is located in the edge region of the light source substrate 21 and faces the side of the light guide plate 1. The electronic component 23 is located in the gap region between the support structures 41. The top surface of the support structure 41 is in contact with the first surface of the light source substrate 21. The support structure 41 can support the light source substrate 21, so that the LED light source 22 and the electronic component 23 are suspended, avoiding damage to the electronic component 23 and / or the LED light source 22 when local stress impacts the electronic component 23 and / or the LED light source 22. In some embodiments, the manufacturer can inject adhesive into the protective component 3 to fix and support the light source assembly. Since the adhesive is disposed between the electronic components 23 and connected to the protective component 3, it should be regarded as a support structure 41 and is within the scope of this utility model.

[0038] The plate-laying part 4 also includes a protective edge 42 extending upward from the edge of the protective surface 31, and the second surface of the light source substrate 21 facing away from the protective surface 31 is flush with the top surface of the protective edge 42. When local stress impacts the surface of the lamp housing assembly 5 and is transmitted to the second surface of the light source substrate 21, the local stress is transmitted from the second surface of the light source substrate 21 to the protective member 3, preventing damage to the surface of the lamp housing assembly 5. Furthermore, since the second surface of the light source substrate 21 does not house the electronic components 23 and / or the LED light source 22, it will not cause damage to the electronic components 23 and / or the LED light source 22, thus meeting national standards.

[0039] The second surface of the light source substrate 21 is in contact with the inner wall surface of the lamp housing assembly 5. The first housing 51 is provided with a light-transmitting hole 53. The second surface of the light source substrate 21 is in contact with the inner wall surface of the first housing 51. The light source module 2 is constrained and fixed between the inner wall surface of the lamp housing assembly 5, the side surface of the light guide plate 1, and the limiting space formed by the support structure 41 and the protective edge 42. This structure can fix the light source substrate 21 and prevent the light source substrate 21 from shifting after the lamp is assembled. The overall structure is more solid and robust.

[0040] The light guide plate 1 includes a first corner portion 11 and a second corner portion 12. The first corner portion 11 contacts the corresponding corner portion of the lamp housing assembly 5, and their geometric shapes are compatible. Both the first corner portion 11 and the corresponding corner portion of the lamp housing assembly 5 have rounded corner structures. The protective component 3 includes a third corner portion 32. The third corner portion 32 contacts the corresponding corner portion of the lamp housing assembly 5, and their geometric shapes are compatible. Both the third corner portion 32 and the corresponding corner portion of the lamp housing assembly 5 have rounded corner structures. The rounded corner structures of the first corner portion 11 and the third corner portion 32 ensure that the corresponding corner portion of the lamp housing assembly 5 also has a rounded corner structure, resulting in a refined and aesthetically pleasing appearance. This also reduces the gaps in the internal accommodating space of the lamp housing assembly 5, making it easier to meet the mechanical environment tolerance test requirements of GB17945-2024 national standard. In some embodiments, the first corner portion 11, the third corner portion 32, and their corresponding corner portions of the lamp housing assembly 5 are all right-angle structures.

[0041] The protective component 3 is provided with a positioning part 33, which is adjacent to and shaped to the second corner 12 of the light guide plate 1. The positioning part 33 can cooperate with the lamp housing to fix the light guide plate 1 and prevent the light guide plate 1 from moving. When the second corner 12 is a rounded corner, the positioning part 33 has a matching arc inner contour. This structure can fill the gap generated when the second corner 12 is a rounded corner structure, ensuring that the lamp meets national standards, and the rounded corner can also improve the light guide plate 1's resistance to impact stress. In some embodiments, when the second corner 12 is a right angle, the positioning part 33 has a matching vertical plane inner contour.

[0042] The protective component 3 includes a plate-laying part 4 and a positioning part 33. The outline of the plate-laying part 4 is adapted to the shape of the light source module 2 to form a hollow structure to accommodate the light source module 2. The positioning part 33 is disposed at both ends of the plate-laying part 4 and is a solid structure.

[0043] The protective component 3 is provided with a wire groove 34, and the lamp housing assembly 5 is provided with a first wire outlet hole 54. The wire groove 34 connects the plate part 4 and the first wire outlet hole 54. The light guide plate 1 is provided with a second corner part 12, which has a rounded corner structure. The first wire outlet hole 54 is located in the area above the second corner part 12. The light source module 2 includes a wire 24, and a wire fixing structure 25 is formed on the surface of the wire 24. The wire fixing structure 25 is located in the first wire outlet hole 54. The wire fixing structure 25 can prevent the wire 24 from being pulled. To ensure the safety of the lamp, the light source module 2 is disconnected. Since the outer sheath of the wire 24 is made of plastic and has impact resistance, the protective component 3 is provided with a positioning part 33 to reduce the thickness of the lamp. The positioning part 33 has an arc-shaped inner contour that matches the second corner part 12. There is a gap between the positioning part 33 and the second corner part 12, forming a notch 35. The first wire outlet hole 54 is located in the area above the notch 35. The wire fixing structure 25 is located in the notch 35 and between the positioning part 33 and the second corner part 12.

[0044] The protective component 3 is provided with a wire groove 34, the first housing 51 is provided with a light-transmitting hole 53, the second housing 52 is provided with a first wire outlet hole 54, the wire groove 34 is provided with a second wire outlet hole 36 coaxially aligned with the first wire outlet hole 54, the light source module 2 includes a wire 24, the surface of the wire 24 is formed with a wire fixing structure 25, the wire fixing structure 25 is disposed in the first wire outlet hole 54 and the second wire outlet hole 36, this structure enables the lamp to have the function of rear wire outlet.

[0045] The sum of the surface areas of the light guide plate 1 and the protective component 3 is adapted to the supporting area of ​​the inner wall of the lamp housing assembly 5 in the corresponding area. This structure can reduce the gap in the internal accommodating space of the lamp housing assembly 5, and more easily meet the mechanical environment resistance test specified in GB17945-2024 national standard. It should be noted that the fixed wire structure 25 in the notch 35 also has impact resistance and should be regarded as part of the protective component 3, and is within the protection scope of this utility model.

[0046] The light guide plate 1 is made of glass with a thickness between 16 mm and 40 mm. This structure ensures that the luminaire meets the mechanical environment resistance performance test specified in GB17945-2024 national standard and reduces costs.

[0047] In some embodiments, the number of light guide plates 1 is two, the protective member 3 is disposed between the two light guide plates 1, and the light source module 2 is provided with two rows of LED light sources 22, which respectively illuminate the adjacent sides of the two light guide plates 1. This structure allows customers to light up different light guide plates 1 according to their needs, thereby illuminating the corresponding sign light-transmitting holes 53.

[0048] In some embodiments, the protective member 3 has a first protective surface and a second protective surface, and the light source module 2 is disposed between the first protective surface and the second protective surface; the thickness of the light guide plate 1 is adapted to the thickness of the protective member 3; or, the thickness of the light guide plate 1 is less than the thickness of the protective member 3, and the inner wall of the first housing 51 and / or the second housing 52 is formed with a protruding placement portion, and the protective member 3 is disposed in the placement portion. This structure can further enhance the impact resistance of the protective member 3 and better protect the light source module 2.

[0049] In some embodiments, to avoid the light source module 2 and / or the protective member 3 being too thick, which would cause the thickness of the light guide plate 1 to also increase and increase product costs, when the thickness of the light guide plate 1 is less than the thickness of the protective member 3, the inner wall of the first housing 51 and / or the second housing 52 is formed with a protruding placement portion, and the protective member 3 is disposed in the placement portion.

[0050] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultra-thin marker light, characterized in that, include: Light guide plate; A light source module is disposed on the side of the light guide plate. The light source module includes a light source substrate and LED light sources and electronic components disposed thereon. The light output end of the LED light source is incident on the side of the light guide plate. A protective component is disposed on the side of the light guide plate and in contact with the light guide plate, and the light source module is housed within the protective component; The lamp housing assembly includes a detachably connected first housing and a second housing, wherein the light guide plate and the protective component are encapsulated within the accommodating space formed by the first housing and the second housing; the first housing and / or the second housing are provided with a light-transmitting hole, and the light emitted from the light guide plate is displayed outward through the light-transmitting hole.

2. The ultra-thin marker light according to claim 1, characterized in that, The thickness of the light guide plate is adapted to the thickness of the protective component.

3. The ultra-thin marker light according to claim 1, characterized in that, The protective component includes a protective surface and a plate-laying portion. The plate-laying portion includes a support structure formed by the protective surface protruding upwards, and the light source module is disposed on the support structure.

4. The ultra-thin marker light according to claim 3, characterized in that, The light source substrate is a single-sided fabricated board, and the LED light source and the electronic components are arranged on the first surface of the light source substrate facing the protective surface; the LED light source is located in the edge region of the light source substrate and faces the side of the light guide plate; the electronic components are located in the gap region between the support structures; the top surface of the support structure is in contact with the first surface of the light source substrate.

5. The ultra-thin marker light according to claim 4, characterized in that, The plate-laying portion also includes a protective edge extending upward from the edge of the protective surface, and the second surface of the light source substrate facing away from the protective surface is flush with the top surface of the protective edge.

6. The ultra-thin marker light according to claim 5, characterized in that, The second surface of the light source substrate is in contact with the inner wall surface of the lamp housing assembly.

7. The ultra-thin marker light according to claim 6, characterized in that, The first housing is provided with a light-transmitting hole, and the second surface of the light source substrate is in contact with the inner wall surface of the first housing.

8. The ultra-thin marker light according to claim 6, characterized in that, The light source module is constrained and fixed between the inner wall of the lamp housing assembly, the side of the light guide plate, and the limiting space formed by the support structure and the protective edge.

9. The ultra-thin marker light according to claim 1, characterized in that, The light guide plate includes a first corner portion and a second corner portion, wherein the first corner portion contacts the corresponding corner portion of the lamp housing assembly, and their geometric shapes are compatible. A) The first corner and the corresponding corner of the lamp housing assembly are both rounded corner structures; or... B) The first corner and the corresponding corner of the lamp housing assembly are both right-angle structures.

10. An ultra-thin marker light according to claim 9, characterized in that, The protective component includes a third corner portion, which contacts the corresponding corner portion of the lamp housing assembly and has a matching geometry; A) The third corner and the corresponding corners of the lamp housing assembly are both rounded corner structures; or... B) The third corner and the corresponding corner of the lamp housing assembly are both right-angle structures.

11. The ultra-thin marker light according to claim 9, characterized in that, The protective component is provided with a positioning part, which is adjacent to the second corner of the light guide plate and is adapted in shape; A) When the second corner is rounded, the positioning part has a matching arc-shaped inner contour; or, B) When the second corner is a right angle, the positioning part has a vertical plane inner contour that is adapted to it.

12. The ultra-thin marker light according to claim 1, characterized in that, The protective component includes a plate-laying part and a positioning part. The outline of the plate-laying part is adapted to the shape of the light source module to form a hollow structure to accommodate the light source module. The positioning part is located at both ends of the plate-laying part and is a solid structure.

13. The ultra-thin marker light according to claim 1, characterized in that, The protective component is provided with a wire groove, the lamp housing assembly is provided with a first wire outlet hole, the wire groove connects the plate portion and the first wire outlet hole, the light guide plate is provided with a second corner portion, the second corner portion is a rounded corner structure, the first wire outlet hole is located in the area above the second corner portion, the light source module includes a wire, the surface of the wire is formed with a wire fixing structure, and the wire fixing structure is located in the first wire outlet hole.

14. The ultra-thin marker light according to claim 13, characterized in that, The protective component is provided with a positioning part, which has an arc-shaped inner contour that matches the second corner portion. There is a gap between the positioning part and the second corner portion, forming a notch. The first wire outlet hole is located in the area above the notch. The wire fixing structure is located in the notch and between the positioning part and the second corner portion.

15. The ultra-thin marker light according to claim 1, characterized in that, The protective component is provided with a wire groove, the first housing is provided with a light-transmitting hole, the second housing is provided with a first wire outlet hole, the wire groove is provided with a second wire outlet hole coaxially aligned with the first wire outlet hole, the light source module includes a wire, the surface of the wire is formed with a wire fixing structure, and the wire fixing structure is disposed in the first wire outlet hole and the second wire outlet hole.

16. The ultra-thin marker light according to claim 1, characterized in that, The light guide plate consists of two pieces, and the protective component is disposed between the two light guide plates. The light source module is provided with two rows of LED light sources, which illuminate the adjacent sides of the two light guide plates respectively.

17. The ultra-thin marker light according to claim 1, characterized in that, The protective component has a first protective surface and a second protective surface, and the light source module is disposed between the first protective surface and the second protective surface; A) The thickness of the light guide plate is adapted to the thickness of the protective component; or, B) The thickness of the light guide plate is less than the thickness of the protective component, and the inner wall of the first housing and / or the second housing is formed with a protruding placement portion, and the protective component is disposed in the placement portion.

18. The ultra-thin marker light according to claim 1, characterized in that, The thickness of the light guide plate is less than the thickness of the protective component, and the inner wall of the first housing and / or the second housing is formed with a protruding placement portion, and the protective component is disposed in the placement portion.

19. The ultra-thin marker light according to claim 1, characterized in that, The sum of the surface area of ​​the light guide plate and the surface area of ​​the protective component is adapted to the supporting area of ​​the inner wall of the lamp housing assembly in the corresponding region.

20. The ultra-thin marker light according to claim 1, characterized in that, The light guide plate is made of glass and has a thickness between 16 mm and 40 mm.

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