Light guide plate and marker lamp

Abstract

The utility model discloses a light guide plate and a marker lamp, and relates to the technical field of emergency lighting, the light guide plate is provided with a first light-transmitting position, a second light-transmitting position and a third light-transmitting position, the first light-transmitting position is arranged between the second light-transmitting position and the third light-transmitting position, and the first light-transmitting position is arranged in the middle of the light guide plate; the first light-transmitting position, the second light-transmitting position and the third light-transmitting position are all used for receiving a light source, and the first light-transmitting position forms a first preset included angle with the second light-transmitting position and the third light-transmitting position. The light source incidence direction of the first light-transmitting position is a vertically downward direction, the light source incidence direction of the second light-transmitting position is a direction inclining towards the lower right corner, the light source incidence direction of the third light-transmitting position is a direction inclining towards the lower left corner, and the light source incidence directions of the first light-transmitting position, the second light-transmitting position and the third light-transmitting position are distributed in a fan shape. The light source is uniformly scattered on the light guide plate, and the problem of uneven illumination brightness can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of emergency lighting, in particular to a light guide plate and a sign lamp. Background Art

[0002] A sign lamp is one of the most common lighting tools in fire emergencies. It has a long emergency time, high brightness, and an automatic emergency function when power is off. The fire evacuation sign lamp has the characteristics of low power consumption, high brightness, and long service life. There are a power switch and an indicating lamp designed on the side, which is suitable for public places such as factories, hotels, schools, and units for emergency lighting in case of power failure.

[0003] The sign lamp includes a light source and a sign pattern part. In the prior art, for the sign pattern part, a hanging piece light guide plate with a sign pattern is used; or a housing with a sign pattern is used, and then a light guide plate is installed inside the housing. And the light source part is arranged at the top of the sign pattern part for illuminating the sign pattern. The lamp beads distributed in the traditional sign lamp light source all illuminate the sign pattern in the vertically downward direction. However, due to the limited number of lamp beads, the lamp beads are concentrated in the middle of the top of the light guide plate. Such a design will cause insufficient illumination brightness at both ends of the light guide plate, resulting in uneven overall illumination brightness of the sign pattern, which is not conducive to users observing the sign pattern. If the number of lamp beads is increased, the circuit board also needs to be correspondingly lengthened, and such a design will increase the production and manufacturing cost of the sign lamp. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a light guide plate and a sign lamp. The light guide plate is provided with a first light transmission position, a second light transmission position, and a third light transmission position. The first light transmission position is arranged between the second light transmission position and the third light transmission position. The first light transmission position, the second light transmission position, and the third light transmission position are used for receiving a light source, and the incident directions of the light sources at the first light transmission position, the second light transmission position, and the third light transmission position are distributed in a fan shape, so as to solve the problem of uneven illumination brightness.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] One aspect of an embodiment of the utility model provides a light guide plate. The light guide plate is provided with a first light transmission position, a second light transmission position, and a third light transmission position. The first light transmission position is arranged between the second light transmission position and the third light transmission position, and the first light transmission position is arranged in the middle of the light guide plate; the first light transmission position, the second light transmission position, and the third light transmission position are all used for receiving a light source, the incident directions of the light sources at the first light transmission position, the second light transmission position, and the third light transmission position are distributed in a fan shape, and the first light transmission position forms a first preset angle with the second light transmission position and the third light transmission position respectively.

[0007] In some embodiments, a fourth light-transmitting position and a fifth light-transmitting position are further provided on the light guide plate. The fourth light-transmitting position is disposed outside the second light-transmitting position, the fifth light-transmitting position is disposed outside the third light-transmitting position, and the first light-transmitting position forms a second preset angle with the fourth light-transmitting position and the fifth light-transmitting position respectively.

[0008] In some embodiments, a sixth light-transmitting position and a seventh light-transmitting position are further provided on the light guide plate. The sixth light-transmitting position is disposed outside the fourth light-transmitting position, the seventh light-transmitting position is disposed outside the fifth light-transmitting position, and the first light-transmitting position forms a third preset angle with the sixth light-transmitting position and the seventh light-transmitting position respectively.

[0009] In some embodiments, the first light-transmitting position includes a first middle light-transmitting position and a second middle light-transmitting position. The first middle light-transmitting position and the second middle light-transmitting position are disposed at both ends of the middle of the light guide plate and are located between the second light-transmitting position and the third light-transmitting position.

[0010] In some embodiments, the first middle light-transmitting position, the second middle light-transmitting position, the second light-transmitting position, the third light-transmitting position, the fourth light-transmitting position, the fifth light-transmitting position, the sixth light-transmitting position, and the seventh light-transmitting position are all used to receive light sources; the incident directions of the light sources of the first middle light-transmitting position, the second middle light-transmitting position, the second light-transmitting position, the third light-transmitting position, the fourth light-transmitting position, the fifth light-transmitting position, the sixth light-transmitting position, and the seventh light-transmitting position are distributed in a fan shape; the third preset angle < the second preset angle < the first preset angle < 180°.

[0011] In some embodiments, the first middle light-transmitting position, the second middle light-transmitting position, the second light-transmitting position, the third light-transmitting position, the fourth light-transmitting position, the fifth light-transmitting position, the sixth light-transmitting position, and the seventh light-transmitting position all include a plurality of sequentially connected grooves, and the plurality of sequentially connected grooves are in a wavy shape.

[0012] In some embodiments, the groove is in a V shape, and the plurality of sequentially connected grooves are in a triangular wave shape.

[0013] In some embodiments, the first middle light-transmitting position, the third light-transmitting position, the fifth light-transmitting position, the seventh light-transmitting position are symmetrically disposed with the second middle light-transmitting position, the second light-transmitting position, the fourth light-transmitting position, the sixth light-transmitting position.

[0014] On one hand, an embodiment of the present utility model provides a marker lamp, which includes the light guide plate as described above. A marker pattern is provided on the light guide plate. The first middle light-transmitting position, the second middle light-transmitting position, the second light-transmitting position, the third light-transmitting position, the fourth light-transmitting position, the fifth light-transmitting position, the sixth light-transmitting position and the seventh light-transmitting position are arranged at the top of the marker pattern. The marker lamp further includes a plurality of lamp beads respectively arranged at the first middle light-transmitting position, the second middle light-transmitting position, the second light-transmitting position, the third light-transmitting position, the fourth light-transmitting position, the fifth light-transmitting position, the sixth light-transmitting position and the seventh light-transmitting position, a light source board electrically connected to the plurality of lamp beads, and a light source box for installing the light source board. The lower end of the light source box is connected to the upper end of the light guide plate.

[0015] In some embodiments, a through opening is provided at the upper end of the light guide plate. The light source box includes a first half shell and a second half shell. A support rod is arranged at the lower end inside the first half shell, and a clamping groove is arranged at the lower end inside the second half shell. The light source box is clamped to the through opening on the light guide plate through the support rod and the clamping groove.

[0016] A light guide plate and a marker lamp according to an embodiment of the present utility model have at least the following beneficial effects: The first light-transmitting position forms a first preset angle with the second light-transmitting position and the third light-transmitting position respectively, the first light-transmitting position forms a second preset angle with the fourth light-transmitting position and the fifth light-transmitting position respectively, the first light-transmitting position forms a third preset angle with the sixth light-transmitting position and the seventh light-transmitting position respectively. The light incident directions of the first middle light-transmitting position, the second middle light-transmitting position, the second light-transmitting position, the third light-transmitting position, the fourth light-transmitting position, the fifth light-transmitting position, the sixth light-transmitting position and the seventh light-transmitting position are distributed in a fan shape, and the third preset angle < the second preset angle < the first preset angle < 180°, so as to improve the overall illumination brightness of the light guide plate.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of a light guide plate according to an embodiment;

[0020] Figure 2 It is an enlarged schematic structural diagram of part A according to an embodiment;

[0021] Figure 3 Schematic structural diagram of a marker lamp according to an embodiment;

[0022] Figure 4 Exploded structural diagram of a marker lamp according to an embodiment;

[0023] Figure 5 Schematic inner structure diagram of a first half shell according to an embodiment.

[0024] Explanation of reference numerals: 1, first light-transmitting position; 2, second light-transmitting position; 3, third light-transmitting position; 4, fourth light-transmitting position; 5, fifth light-transmitting position; 6, sixth light-transmitting position; 7, seventh light-transmitting position; 8, first middle light-transmitting position; 9, second middle light-transmitting position; 10, lamp beads; 11, light source board; 12, light guide plate; 13, light source box; 14, through hole; 15, first half shell; 16, second half shell; 17, support rod; 18, card slot. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "middle", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0027] The terms "first", "second", "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected", "installed", "connected to", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the connection inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be more complete and comprehensive, and will fully convey the concept of the example embodiments to those skilled in the art. The drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repeated description will be omitted.

[0030] The light guide plate of the embodiment of the present application will be briefly described below:

[0031] According to some embodiments, as Figures 1 to 2 shown, the present application provides a light guide plate. The light guide plate 12 is provided with a first light transmission position 1, a second light transmission position 2, and a third light transmission position 3. The first light transmission position 1 is arranged between the second light transmission position 2 and the third light transmission position 3, and the first light transmission position 1 is arranged in the middle of the light guide plate 12;

[0032] The first light transmission position 1, the second light transmission position 2, and the third light transmission position 3 are all used to receive light sources. The incident directions of the light sources of the first light transmission position 1, the second light transmission position 2, and the third light transmission position 3 are distributed in a fan shape, and the first light transmission position 1 forms a first preset angle with the second light transmission position 2 and the third light transmission position 3 respectively.

[0033] Among them, the first preset angle can be set according to actual needs.

[0034] The light guide plate 12 of the present application is provided with a first light transmission position 1, a second light transmission position 2, and a third light transmission position 3. The first light transmission position 1 is arranged between the second light transmission position 2 and the third light transmission position 3. The first light transmission position 1, the second light transmission position 2, and the third light transmission position 3 are used to receive light sources. In some specific embodiments, the incident direction of the light source of the first light transmission position 1 is the vertically downward direction, the incident direction of the light source of the second light transmission position 2 is the direction inclined to the lower right corner, and the incident direction of the light source of the third light transmission position 3 is the direction inclined to the lower left corner. The incident directions of the light sources of the first light transmission position 1, the second light transmission position 2, and the third light transmission position 3 are distributed in a fan shape, so that the light sources are evenly scattered on the light guide plate 12, and the problem of uneven illumination brightness can be solved.

[0035] The following further elaborates in detail on the light guide plate of the present application in conjunction with the accompanying drawings of this specification. Figures 1 to 2

[0036] According to some embodiments, as Figure 1 shown, a fourth light-transmitting position 4 and a fifth light-transmitting position 5 are further provided on the light guide plate 12. The fourth light-transmitting position 4 is arranged outside the second light-transmitting position 2, and the fifth light-transmitting position 5 is arranged outside the third light-transmitting position 3. The first light-transmitting position 1 forms a second preset angle with the fourth light-transmitting position 4 and the fifth light-transmitting position 5 respectively.

[0037] Furthermore, as Figure 1 shown, a sixth light-transmitting position 6 and a seventh light-transmitting position 7 are further provided on the light guide plate 12. The sixth light-transmitting position 6 is arranged outside the fourth light-transmitting position 4, and the seventh light-transmitting position 7 is arranged outside the fifth light-transmitting position 5. The first light-transmitting position 1 forms a third preset angle with the sixth light-transmitting position 6 and the seventh light-transmitting position 7 respectively.

[0038] Furthermore, as Figure 1 shown, the first light-transmitting position 1 includes a first middle light-transmitting position 8 and a second middle light-transmitting position 9. The first middle light-transmitting position 8 and the second middle light-transmitting position 9 are arranged at both ends of the middle part of the light guide plate 12 and are located between the second light-transmitting position 2 and the third light-transmitting position 3.

[0039] Furthermore, the first middle light-transmitting position 8, the second middle light-transmitting position 9, the second light-transmitting position 2, the third light-transmitting position 3, the fourth light-transmitting position 4, the fifth light-transmitting position 5, the sixth light-transmitting position 6, and the seventh light-transmitting position 7 are all used to receive light sources. The light source incident directions of the first middle light-transmitting position 8, the second middle light-transmitting position 9, the second light-transmitting position 2, the third light-transmitting position 3, the fourth light-transmitting position 4, the fifth light-transmitting position 5, the sixth light-transmitting position 6, and the seventh light-transmitting position 7 are distributed in a fan shape.

[0040] ] As Figure 1 shown, the upper end surface of the first light-transmitting position 1 forms a first preset angle with the upper end surfaces of the second light-transmitting position 2 and the third light-transmitting position 3 respectively; the upper end surface of the first light-transmitting position 1 forms a second preset angle with the upper end surfaces of the fourth light-transmitting position 4 and the fifth light-transmitting position 5 respectively; the upper end surface of the first light-transmitting position 1 forms a third preset angle with the upper end surfaces of the sixth light-transmitting position 6 and the seventh light-transmitting position 7 respectively.

[0041] Among them, the first preset angle, the second preset angle, and the third preset angle can be set according to actual needs. In some embodiments, as Figure 1 shown, the third preset angle < the second preset angle < the first preset angle < 180°.

[0042] According to some embodiments, as Figure 2As shown, the first middle light-transmitting position 8, the second middle light-transmitting position 9, the second light-transmitting position 2, the third light-transmitting position 3, the fourth light-transmitting position 4, the fifth light-transmitting position 5, the sixth light-transmitting position 6 and the seventh light-transmitting position 7 all include a plurality of grooves connected in sequence, and the plurality of grooves connected in sequence are in a wavy shape.

[0043] Further, in some specific embodiments, such as Figure 2 As shown, the grooves are V-shaped, and the plurality of grooves connected in sequence are in a triangular wave shape.

[0044] Among them, the first middle light-transmitting position 8, the second middle light-transmitting position 9, the second light-transmitting position 2, the third light-transmitting position 3, the fourth light-transmitting position 4, the fifth light-transmitting position 5, the sixth light-transmitting position 6 and the seventh light-transmitting position 7 are all in a triangular wave shape, so as to disperse the light source and irradiate it on the light guide plate 12.

[0045] In some specific embodiments, such as Figure 1 As shown, the first middle light-transmitting position 8, the third light-transmitting position 3, the fifth light-transmitting position 5, the seventh light-transmitting position 7 are symmetrically arranged with the second middle light-transmitting position 9, the second light-transmitting position 2, the fourth light-transmitting position 4, the sixth light-transmitting position 6.

[0046] Among them, the axis of symmetry is the vertical line at the midpoint between the first middle light-transmitting position 8 and the second middle light-transmitting position 9. The first middle light-transmitting position 8 is symmetric with the second middle light-transmitting position 9, the third light-transmitting position is symmetric with the second light-transmitting position 2, the fifth light-transmitting position 5 is symmetric with the fourth light-transmitting position 4, and the seventh light-transmitting position 7 is symmetric with the sixth light-transmitting position 6.

[0047] The following combines the appendices of this specification Figures 1 to 5 to elaborate on the marker lamp of this application.

[0048] According to some embodiments, such as Figures 3 to 5 As shown, this application provides a marker lamp, which includes the light guide plate 12 as described above. A marker pattern is provided on the light guide plate 12, and the first middle light-transmitting position 8, the second middle light-transmitting position 9, the second light-transmitting position 2, the third light-transmitting position 3, the fourth light-transmitting position 4, the fifth light-transmitting position 5, the sixth light-transmitting position 6 and the seventh light-transmitting position 7 are arranged at the top of the marker pattern;

[0049] Such as Figure 4 As shown, the marker lamp further includes a plurality of lamp beads 10 respectively arranged on the first middle light-transmitting position 8, the second middle light-transmitting position 9, the second light-transmitting position 2, the third light-transmitting position 3, the fourth light-transmitting position 4, the fifth light-transmitting position 5, the sixth light-transmitting position 6 and the seventh light-transmitting position 7, a light source board 11 electrically connected to the plurality of lamp beads, and a light source box 13 for installing the light source board 11;

[0050] Such as Figure 3 As shown, the lower end of the light source box 13 is connected to the upper end of the light guide plate 12.

[0051] Further, as shown in Figure 1 and Figure 4 shown, a through opening 14 is provided at the upper end of the light guide plate 12. As shown in Figure 4 shown, the light source box 13 includes a first half shell 15 and a second half shell 16. As shown in Figure 5 shown, a support rod 17 is provided at the lower end inside the first half shell 15. As shown in Figure 4 shown, a card slot 18 is provided at the lower end inside the second half shell 16. The light source box 13 is snap - connected to the through opening 14 on the light guide plate 12 through the support rod 17 and the card slot 18.

[0052] In the description of the above - mentioned embodiments, the specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0053] Although the present disclosure has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present disclosure can be embodied in many forms without departing from the spirit or essence of the present application, it should be understood that the above - mentioned embodiments are not limited to any of the foregoing details, but should be construed broadly within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A light guide plate, characterized in that, The light guide plate is provided with a first light transmission position, a second light transmission position and a third light transmission position. The first light transmission position is arranged between the second light transmission position and the third light transmission position, and the first light transmission position is arranged in the middle of the light guide plate; The first light transmission position, the second light transmission position and the third light transmission position are all used to receive light sources. The incident directions of the light sources at the first light transmission position, the second light transmission position and the third light transmission position are distributed in a fan shape. The first light transmission position forms a first preset angle with the second light transmission position and the third light transmission position respectively.

2. The light guide plate according to claim 1, wherein The light guide plate is further provided with a fourth light transmission position and a fifth light transmission position. The fourth light transmission position is arranged outside the second light transmission position, and the fifth light transmission position is arranged outside the third light transmission position. The first light transmission position forms a second preset angle with the fourth light transmission position and the fifth light transmission position respectively.

3. The light guide plate according to claim 2, characterized in that, The light guide plate is further provided with a sixth light transmission position and a seventh light transmission position. The sixth light transmission position is arranged outside the fourth light transmission position, and the seventh light transmission position is arranged outside the fifth light transmission position. The first light transmission position forms a third preset angle with the sixth light transmission position and the seventh light transmission position respectively.

4. The light guide plate according to claim 3, wherein The first light transmission position includes a first middle light transmission position and a second middle light transmission position. The first middle light transmission position and the second middle light transmission position are arranged at both ends of the middle of the light guide plate and are located between the second light transmission position and the third light transmission position.

5. The light guide plate according to claim 4, wherein The first middle light transmission position, the second middle light transmission position, the second light transmission position, the third light transmission position, the fourth light transmission position, the fifth light transmission position, the sixth light transmission position and the seventh light transmission position are all used to receive light sources; The incident directions of the light sources at the first middle light transmission position, the second middle light transmission position, the second light transmission position, the third light transmission position, the fourth light transmission position, the fifth light transmission position, the sixth light transmission position and the seventh light transmission position are distributed in a fan shape; The third preset angle < the second preset angle < the first preset angle < 180°.

6. The light guide plate according to claim 4, wherein The first middle light transmission position, the second middle light transmission position, the second light transmission position, the third light transmission position, the fourth light transmission position, the fifth light transmission position, the sixth light transmission position and the seventh light transmission position all include a plurality of grooves connected in sequence. The plurality of grooves connected in sequence are in a wavy shape.

7. The light guide plate according to claim 6, wherein The groove is in a V shape, and the plurality of grooves connected in sequence are in a triangular wavy shape.

8. The light guide plate according to claim 4, characterized in that, The first middle light transmission position, the third light transmission position, the fifth light transmission position, the seventh light transmission position and the second middle light transmission position, the second light transmission position, the fourth light transmission position, the sixth light transmission position are symmetrically arranged.

9. A marker lamp, characterized in that, The marker lamp includes the light guide plate according to any one of claims 4 to 8. A marker pattern is arranged on the light guide plate. The first middle light transmission position, the second middle light transmission position, the second light transmission position, the third light transmission position, the fourth light transmission position, the fifth light transmission position, the sixth light transmission position and the seventh light transmission position are arranged at the top of the marker pattern; The marker lamp further includes a plurality of lamp beads respectively disposed on the first middle light-transmitting position, the second middle light-transmitting position, the second light-transmitting position, the third light-transmitting position, the fourth light-transmitting position, the fifth light-transmitting position, the sixth light-transmitting position, and the seventh light-transmitting position, a light source board electrically connected to the plurality of lamp beads, and a light source box for mounting the light source board; The lower end of the light source box is connected to the upper end of the light guide plate.

10. The beacon light according to claim 9, characterized in that, A through opening is formed at the upper end of the light guide plate. The light source box includes a first half shell and a second half shell. A support rod is disposed at the lower end inside the first half shell, and a card slot is disposed at the lower end inside the second half shell. The light source box is snap-connected to the through opening on the light guide plate through the support rod and the card slot.

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