Light guide plate structure of marker lamp

Abstract

The invention relates to the technical field of emergency lighting, and provides a marker lamp light guide plate structure which comprises a shell, a light guide plate and a light source plate, the light guide plate and the light source plate are arranged in the shell, the light guide plate is provided with a light inlet end and a light emitting end, the thickness of the light inlet end is larger than that of the light emitting end, and an LED light source is arranged on the light source plate. Light of the LED light source is transmitted to the light emitting end through the light inlet end. The thickness of the light inlet end is larger than that of the light-emitting end, light of the LED light source is conducted to the light-emitting end through the light inlet end, the area of the light inlet end is locally increased, the light of the LED light source is more fully utilized, the thickness of the light-emitting end is not limited by the size of the LED light source any more, the light-emitting end can be set to be thinner, and therefore materials of the light guide plate are saved, the thickness of a product is ordered, and the product quality is improved. Therefore, the device is more harmonious and beautiful in process design.

Description

Light guide plate structure for a marker light Technical Field

[0001] The present invention relates to the technical field of lamps, and in particular to a light guide plate structure for a marker lamp. Background Art

[0002] Light guide plates have been widely used in fire emergency sign lamps because they can better utilize the light efficiency of LED light sources and have excellent light guiding performance. The existing light guide plate lighting structure is to set LED light sources on the edge of the light guide plate, illuminate the entire light guide plate through the LED light source, and display it to the outside through the lamp housing. Fire emergency sign lamps using light guide plates are very popular in the market because of their simplicity and safety.

[0003] In order to make full use of the light effect, the thickness of the light guide plate should be greater than the thickness of the LED light source. With the rapid development of optical technology and light guide plate manufacturing technology, the thickness of the light guide plate is getting smaller and smaller. However, due to the size limitation of the existing LED light source, the thickness of the light guide plate cannot be further reduced. The thickness of the light guide plate determines the thickness of the lamp. The thinner the light guide plate, the less material is required and the lower the cost. The thinner the lamp, the more popular it is with users. How to break through the size limitation of the LED light source and apply thinner light guide plates is an issue that the industry urgently needs to solve.

[0004] On the other hand, light guide plates have been widely used in fire emergency sign lamps because they can better utilize the light efficiency of LED light sources and have excellent light guiding performance. With the rapid development of the emergency lighting industry, ultra-thin sign lights are deeply welcomed by the market because of their simplicity and safety.

[0005] The thickness of the ultra-thin marker light is determined by the thickness of the light guide plate and the circuit board. The thinner the light guide plate and the circuit board are, the thinner the lamp body is and the more popular it is with users. In addition, the volume of the lamp body is smaller and the cost of the lamp is reduced accordingly. However, due to the size limitation of the electronic components on the circuit board, in order to place the circuit board, the thickness of the lamp body must be adapted to the thickness of the circuit board. However, due to the structural limitations of existing lamps, a light guide plate thinner than the circuit board cannot be installed.

[0006] Summary of the Invention

[0007] One of the purposes of the present invention is to provide an ultra-thin marker light with a simple structure and capable of installing a light guide plate thinner than a circuit board.

[0008] In order to achieve the above-mentioned purpose, the present invention provides an ultra-thin marker light, comprising a shell, a light guide plate and a circuit board arranged in the shell, wherein the shell is provided with a light-emitting position and a board placement position, the light guide plate is arranged in the light-emitting position, the circuit board is arranged in the board placement position, and the cross-sectional width of the light-emitting position and the shell is smaller than the width of the board placement position and the shell.

[0009] Preferably, the light-emitting position is adapted to the cross-sectional width of the housing and the thickness of the light guide plate.

[0010] Preferably, the shell is provided with an inwardly recessed support portion, the support portion is arranged in the light-emitting position, and the cross-sectional width between the support portion and the shell is smaller than the width of the board placement position.

[0011] Preferably, the board placement position is arranged at the edge of the light-emitting position, and the circuit board is arranged at the edge of the light guide plate.

[0012] Preferably, the board placement position is arranged in the middle of the light-emitting position, and the circuit board is arranged in the middle of the light guide plate.

[0013] Preferably, an LED light source is provided on the circuit board, and the light guide plate is optically connected to the LED light source.

[0014] Preferably, the shell includes a first shell and a second shell, and the first shell and / or the second shell is provided with a marking hole, and the position of the marking hole is adapted to the position of the light-emitting position.

[0015] Preferably, the support is provided on the first shell and / or the second shell.

[0016] Preferably, a battery is provided in the shell, the shell is provided with a battery position, the cross-sectional width of the battery position is greater than the cross-sectional width of the light-emitting position, and the battery is arranged in the battery position.

[0017] Preferably, components are provided on the circuit board, and the components are arranged in the board placement position.

[0018] Preferably, the four edges of the shell are edge portions, the cross-sectional width of the edge portions is greater than the cross-sectional widths of the light-emitting position and the shell, and the edge portions surround the light-emitting position.

[0019] Compared with the prior art, the beneficial effects of the present invention are: by placing the light guide plate at the light-emitting position and the circuit board at the board position, the cross-sectional width of the light-emitting position and the shell is adapted to the thickness of the light guide plate, and the thickness of the shell is no longer related to the thickness of the light guide plate. While the circuit board can be installed, even a thinner light guide plate can be installed in the shell, which can greatly improve the installation diversity of the light guide plate and effectively save product costs.

[0020] In another embodiment of the present application, an ultra-thin marker light is disclosed, comprising: a housing, a light guide plate disposed within the housing, and a circuit board. The housing is provided with a light-emitting position and a circuit board placement position, the light guide plate being disposed within the light-emitting position, the circuit board being disposed within the circuit board placement position, and the cross-sectional width between the light-emitting position and the housing being smaller than the width between the circuit board placement position and the housing. By placing the light guide plate within the light-emitting position and the circuit board within the circuit board placement position, the cross-sectional width between the light-emitting position and the housing is adapted to the thickness of the light guide plate, and the thickness of the housing is no longer related to the thickness of the light guide plate. While the circuit board can be installed, even a thinner light guide plate can be installed within the housing, greatly increasing the installation diversity of the light guide plate and effectively saving product costs.

[0021] In another aspect of the present application, a second object of the present invention is to provide a marker light guide plate structure with a simple structure and low cost.

[0022] In order to achieve the above-mentioned purpose, the present invention provides a marker light light guide plate structure, including a shell, a light guide plate and a light source plate arranged in the shell, the light guide plate is provided with a light input end and a light emitting end, the thickness of the light input end is greater than the thickness of the light emitting end, the light source plate is provided with an LED light source, and the light of the LED light source is transmitted to the light emitting end through the light input end.

[0023] Preferably, the housing is provided with a marking hole, the position of the light-emitting end is adapted to the position of the marking hole, and is displayed to the outside through the marking hole, and the light-inlet end is arranged outside the marking hole.

[0024] Preferably, the light-incoming end includes a light-incoming surface, and the light-incoming surface faces the LED light source.

[0025] Preferably, the thickness of the light-inlet end is greater than the thickness of the LED light source.

[0026] Preferably, the thickness of the light-inlet end matches the thickness of the housing.

[0027] Preferably, the light-input end and the light-emitting end are connected via an inclined surface.

[0028] Preferably, the light-incoming end includes a light-incoming surface, the light-incoming surface extends toward the light-emitting end to form an extended end, and the extended end is connected to the light-emitting end via an inclined surface.

[0029] Preferably, one side of the light guide plate extends upward to form a light-inlet end, the light-inlet end is provided with an inclined surface connected to the light-emitting end, and the other side is a flat surface.

[0030] Preferably, both sides of the light guide plate extend outward to form a light-incoming end, and are provided with an inclined surface connected to the light-emitting end.

[0031] Preferably, the light input end is arranged at the edge of the light emitting end, and the LED light source is arranged at the edge of the light guide plate.

[0032] Preferably, the light source plate is arranged in the middle of the light guide plate, and a light inlet end is provided at a position of the light guide plate facing the LED light source.

[0033] Preferably, the light inlet end is provided with a recessed light inlet position.

[0034] Preferably, a light-emitting position and a board placement position are provided in the shell, the light-emitting end is arranged in the light-emitting position, the light source board and the light-input end are arranged in the board placement position, and the cross-sectional width of the light-emitting position and the shell is smaller than the width of the board placement position and the shell.

[0035] Preferably, the light-emitting position is adapted to the cross-sectional width of the housing and the thickness of the light-emitting end.

[0036] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) the thickness of the light-inlet end is greater than the thickness of the light-emitting end, and the light of the LED light source is transmitted to the light-emitting end through the light-inlet end. By locally increasing the area of ​​the light-inlet end, the light of the LED light source is more fully utilized, and the thickness of the light-emitting end is no longer limited by the size of the LED light source and can be set thinner, thereby saving the material of the light guide plate, making the thickness of the product orderly, more coordinated and beautiful, and more beautiful in craftsmanship design; (2) the thickness of the light-inlet end is greater than the thickness of the LED light source, and when the shell is subjected to force, the light-inlet end can support the shell to prevent the shell from contacting the LED light source and causing damage to the LED light source; (3) an inclined surface is provided between the light-inlet end and the light-emitting end, so that light can better enter the light-emitting end from the light-inlet end, so that the light effect of the light guide plate can be more fully utilized.

[0037] Emergency lighting, as an important safety facility, is powered by a connected host, which is an emergency lighting controller, emergency power supply box, or emergency distribution box. Changes in the output power of the host may cause electrical appliances to flicker, which will be detrimental to fire emergency lighting.

[0038] In order to solve this problem, in some embodiments of the present application, an energy storage device is connected inside the host or on the light source board of the fire emergency lighting fixture powered by the host as an electric energy buffer unit, so that when the power supply provided by the host fluctuates, the electric energy supply to the light source board in the fire emergency lighting fixture can be kept stable, so that the luminous power of the light source board is basically constant.

[0039] Based on this concept, the emergency lighting fixtures (or lamps, ultra-thin sign lights) in some embodiments of the present application also include the above-mentioned energy storage device. And the lamps (ultra-thin sign lights) in any embodiment of the present application may also include: a power supply board and an energy storage device, the energy storage device is provided on the power supply board, electrically connected to the light source board, and is used to connect to the power from the battery assembly; the energy storage device further includes:

[0040] a plurality of electricity storage components, each of which includes an anode and a cathode;

[0041] a second power storage assembly; and

[0042] One or more switch units, wherein the one or more switch units include at least two or more poles, and wherein:

[0043] In the high-level mode of the one or more switching units, the first power storage component and the second power storage component are coupled in series, and

[0044] In the low-level mode of the one or more switching units, the first energy storage component and the second energy storage component are coupled in parallel.

[0045] Optionally, in one embodiment of the present application:

[0046] The one or more switch units include a first single-pole double-throw switch and a second single-pole double-throw (also known as single-pole double-throw) switch;

[0047] In the high level mode, the first single-pole double-throw switch and the second single-pole double-throw switch are both in the first switch position, thereby connecting the anode of the first storage assembly to the cathode of the second storage assembly; and

[0048] In low-level mode:

[0049] The first single-pole double-throw switch is in a second switch position, thereby connecting the cathode of the first electrical storage assembly to the cathode of the second electrical storage assembly; and

[0050] The second single-pole double-throw switch is in a second switch position, thereby connecting the anode of the first energy storage assembly to the anode of the second energy storage assembly.

[0051] Optionally, in one embodiment of the present application:

[0052] The one or more switch units include two single-pole single-throw switches;

[0053] In high-level mode:

[0054] The first of the two single-pole, single-throw switches is in the open position, and

[0055] a second of the two single-pole, single-throw switches in an engaged, energized position, thereby connecting the anode of the first electrical storage assembly to the cathode of the second electrical storage assembly; and

[0056] In low-level mode:

[0057] A first of the two single-pole, single-throw switches is in an engaged, energized position, thereby connecting the cathode of the first electrical storage assembly to the cathode of the second electrical storage assembly, and

[0058] The second of the two single-pole, single-throw switches is in the open position.

[0059] Optionally, in one embodiment of the present application, the energy storage device further includes at least one charging unit switch, and the at least one charging unit switch is configured to connect the first storage component and the second storage component to the charging unit and disconnect them from the charging unit.

[0060] Optionally, in a lamp of an embodiment of the present application, in high level mode:

[0061] The anode of the light source panel is connected to the anode of the first power storage assembly; and

[0062] The cathode of the light source panel is connected to the cathode of the first power storage assembly.

[0063] Optionally, in one embodiment of the present application, the energy storage device further includes at least one load switch, and the at least one load switch includes at least two or more poles, wherein, in the high level mode:

[0064] When the at least one load switch is set to one or more first switch positions:

[0065] The anode of the light source panel is connected to the anode of the first power storage assembly, and

[0066] The cathode of the light source board is connected to the cathode of the first power storage assembly; and when the at least one load switch is set to one or more second switch positions:

[0067] The anode of the light source panel is connected to the anode of the second power storage assembly, and

[0068] The cathode of the light source panel is connected to the cathode of the first power storage assembly.

[0069] Optionally, in one embodiment of the present application, a control circuit is further included, which is configured to set the position of the at least one load switch according to the state parameters of at least one of the first storage component and the second storage component when in high-level mode.

[0070] Optionally, in one embodiment of the present application:

[0071] In the high-level mode, the energy storage device is configured to receive a charging voltage of 220 volts or 240 volts or more but not less than 800 volts.

[0072] Optionally, in one embodiment of the present application, in the charging configuration, the energy storage device is configured to provide a voltage of 48 volts or 36 volts or above to the fire emergency lighting fixture or the light source panel.

[0073] Optionally, the lamp of an embodiment of the present application further includes an energy storage control unit, which is configured to select between a low-level mode and a high-level mode.

[0074] In these corresponding embodiments, the electrical connection between the energy storage device and the external power supply is dynamically adjusted in response to changes in the external power supply voltage, and / or the electrical connection between the energy storage device and the light source board is dynamically adjusted in response to changes in the external power supply voltage. Thus, through the central energy storage device, a stable power feed channel is established between an external power source such as a battery and the light source board, thereby maintaining a substantially constant optical power of the light source board in the fire emergency lighting fixture.

[0075] For example, in some embodiments, a) the electrical connection relationship between the energy storage device and the light source board is dynamically switched between series and parallel through the coordinated operation of the switching unit, or b) the electrical connection relationship between the entire energy storage device and the external power supply is dynamically switched between series and parallel through the coordinated operation of the switching unit, which enables the feeding channel of "external power supply→energy storage device" and / or the feeding channel of "energy storage device→light source board" to dynamically adapt to the voltage changes of the external power supply, thereby keeping the electric energy obtained by the light source board of the terminal stable.

[0076] Optionally, the lamps of some embodiments may be connected to a voltage stabilizing circuit at the output end, thereby further providing more stable electrical energy, such as voltage, to external lamps.

[0077] Therefore, in one embodiment, in some embodiments of the present application, a voltage stabilizing circuit is also proposed, including:

[0078] a linear DC voltage regulator unit configured to receive an input voltage through an input terminal of the transistor and provide a regulated output voltage at an output terminal of the transistor;

[0079] a DC-DC converter configured to output a DC-DC converter voltage, wherein the DC-DC converter voltage supplies power to a driving circuit of the linear DC voltage stabilization unit;

[0080] a DC-DC converter control circuit configured to control the DC-DC converter so that the DC-DC converter voltage (i) is greater than the input voltage and (ii) does not exceed a high voltage threshold; and

[0081] The undervoltage lockout unit is configured to enable the linear DC voltage regulator unit once the DC-DC converter voltage (i) is greater than the minimum voltage for operation of the linear DC voltage regulator unit and (ii) is greater than the regulated output voltage.

[0082] Optionally, in the above-mentioned voltage stabilization circuit, the transistor is an N-channel MOSFET controlled by the driving circuit; and the linear DC voltage stabilization unit is a low voltage dropout regulator.

[0083] Optionally, the above voltage stabilizing circuit, wherein:

[0084] The minimum voltage corresponds to a potential difference between the gate terminal and the source terminal of the N-channel MOSFET, so as to provide a non-zero output current to the output terminal of the linear DC voltage regulator unit; and

[0085] The high voltage threshold corresponds to the safe operating area of ​​the N-channel MOSFET.

[0086] Optionally, in the above voltage stabilizing circuit, the DC-DC converter is a symmetrical cross-coupled symmetrical DC-DC converter.

[0087] Optionally, in the above voltage stabilizing circuit, the DC-DC converter voltage corresponds to the frequency of a clock signal from the DC-DC converter control circuit.

[0088] Optionally, in the above-mentioned voltage stabilizing circuit, the frequency of the clock signal is controlled by a voltage controlled oscillator driven by a differential amplifier unit of a control circuit of the DC-DC converter; and

[0089] The differential amplifier unit is a four-input operational amplifier. Once the DC-DC converter voltage is lower than the high-voltage threshold, the output of the four-input operational amplifier is a floating voltage that is higher than the input voltage by a predetermined value. The predetermined value is determined by the operating characteristics of the transistor of the linear DC voltage regulator unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0090] FIG1 is a perspective view of the first embodiment.

[0091] FIG2 is an exploded perspective view of the first embodiment.

[0092] FIG. 3 is an enlarged cross-sectional view taken along line AA in FIG. 1 .

[0093] FIG4 is a perspective view of the second embodiment.

[0094] FIG5 is an exploded perspective view of the second embodiment.

[0095] FIG. 6 is an enlarged cross-sectional view taken along line BB in FIG. 4 .

[0096] FIG7 is a perspective view of the third embodiment.

[0097] FIG8 is an exploded perspective view of the third embodiment.

[0098] FIG. 9 is an enlarged cross-sectional view taken along line CC in FIG. 7 .

[0099] FIG10 shows a schematic diagram of a feeding topology according to an embodiment of the present invention;

[0100] FIG11 is an exploded perspective view of the fourth embodiment.

[0101] FIG. 12 is a partially enlarged view of AA in FIG. 11 .

[0102] FIG13 is an enlarged cross-sectional view of the BB after assembly of the embodiment of FIG11 .

[0103] FIG14 is an exploded perspective view of the fifth embodiment.

[0104] FIG. 15 is a partially enlarged view of CC in FIG. 14 .

[0105] FIG16 is an enlarged cross-sectional view of the embodiment of FIG14 after assembly DD.

[0106] FIG17 is a structural block diagram of a voltage stabilizing circuit at the input end of a lamp according to an embodiment of the present invention.

[0107] In Examples 1 to 3, the following figure marks are used: 1-shell; 11-first shell; 12-second shell; 13-marking hole; 14-support; 15-battery position; 2-light guide plate; 3-circuit board; 31-LED light source; 32-component; 4-light-emitting position; 5-board placement position; 6-edge; 7-battery.

[0108] In Examples 4 to 5, the following figure marks are used: 1-shell; 11-marking hole; 12-light-emitting position; 13-board placement position; 2-light guide plate; 3-light source board; 31-LED light source; 4-light input end; 41-light input surface, 42-extension end; 5-light-emitting end; 6-inclined surface. DETAILED DESCRIPTION

[0109] The technical solution of the present invention is further described below with reference to specific embodiments 1-3.

[0110] Example 1

[0111] As shown in Figures 1, 2, and 3, an ultra-thin marker light comprises a housing 1, a light guide plate 2 disposed within the housing 1, and a circuit board 3. The housing 1 is provided with a light-emitting position 4 and a circuit board placement position 5. The light guide plate 2 is disposed within the light-emitting position 4, and the circuit board 3 is disposed within the circuit board placement position 5. The cross-sectional width of the light-emitting position 4 and the housing 1 is smaller than the width of the circuit board placement position 5 and the housing 1. The cross-sectional width of the light-emitting position 4 and the housing 1 is adapted to the thickness of the light guide plate 2. The circuit board placement position 5 is disposed at the edge of the light-emitting position 4, and the circuit board 3 is disposed at the edge of the light guide plate 2. An LED light source 31 is disposed on the circuit board 3, and the light guide plate 2 is optically connected to the LED light source 31.

[0112] The shell 1 includes a first shell 11 and a second shell 12. The first shell 11 and the second shell 12 are provided with a marking hole 13. The position of the marking hole 13 is adapted to the position of the light-emitting position 4. The light guide plate 2 is placed through the light-emitting position 4, and the circuit board 3 is placed on the board position 5. The light-emitting position 4 is adapted to the cross-sectional width of the shell 1 and the thickness of the light guide plate 2. The thickness of the shell 1 is no longer related to the thickness of the light guide plate 2. A thicker circuit board 3 can be installed at the same time, and even a thinner light guide plate 2 can be installed in the shell 1, which can greatly improve the installation diversity of the light guide plate 2 and effectively save product costs.

[0113] Example 2

[0114] As shown in Figures 4, 5 and 6, an ultra-thin marker light comprises a shell 1, a light guide plate 2 and a circuit board 3 arranged in the shell 1, a light-emitting position 4 and a board placement position 5 being provided in the shell 1, the light guide plate 2 being provided in the light-emitting position 4, the circuit board 3 being provided in the board placement position 5, the cross-sectional width of the light-emitting position 4 and the shell 1 being smaller than the width of the board placement position 5 and the shell 1, the cross-sectional width of the light-emitting position 4 and the shell 1 being adapted to the thickness of the light guide plate 2, the shell 1 being provided with an inwardly recessed support 14, the support 14 being provided in the light-emitting position 4, the cross-sectional width between the support 14 and the shell 1 being smaller than the width of the board placement position 5, the light guide plate 1 being tightly attached to the front shell 1 through the support 14, the board placement position 5 being provided in the middle of the light-emitting position 4, the circuit board being provided in the middle of the light guide plate, an LED light source 31 being provided on the circuit board 3, and the light guide plate 2 being optically connected to the LED light source 31.

[0115] The housing 1 is provided with a battery 7 , which is provided with a battery position 15 . The cross-sectional width of the housing 1 and the battery position 15 is greater than the cross-sectional width of the housing 1 and the light-emitting position 4 . The battery 7 is provided in the battery position 15 .

[0116] The shell 1 includes a first shell 11 and a second shell 12. The first shell 11 is provided with a marking hole 13. The position of the marking hole 13 is adapted to the position of the light-emitting position 4. The light guide plate 2 is placed through the light-emitting position 4, and the circuit board 3 is placed on the board position 5. The light-emitting position 4 is adapted to the cross-sectional width of the shell 1 and the thickness of the light guide plate 2. The thickness of the shell 1 is no longer related to the thickness of the light guide plate 2. A thicker circuit board 3 can be installed at the same time, and even a thinner light guide plate 2 can be installed in the shell 1, which can greatly improve the installation diversity of the light guide plate 2 and effectively save product costs.

[0117] Example 3

[0118] As shown in Figures 7, 8 and 9, an ultra-thin marker light includes a shell 1, a light guide plate 2 and a circuit board 3 arranged in the shell 1, a light-emitting position 4 and a board placement position 5 are provided in the shell 1, the light guide plate 2 is arranged in the light-emitting position 4, the circuit board 3 is arranged in the board placement position 5, the cross-sectional width of the light-emitting position 4 and the shell 1 is smaller than the width of the board placement position 5 and the shell 1, the cross-sectional width of the light-emitting position 4 and the shell 1 and the thickness of the light guide plate 2 are adapted, the board placement position 5 is arranged in the middle of the light-emitting position 4, the circuit board is arranged in the middle of the light guide plate, an LED light source 31 is provided on the circuit board 3, and the light guide plate 2 is optically connected to the LED light source 31.

[0119] The shell 1 includes a first shell 11 and a second shell 12. The first shell 11 and the second shell 12 are both provided with a marking hole 13. The position of the marking hole 13 is adapted to the position of the light-emitting position 4. The light guide plate 2 is placed through the light-emitting position 4, and the circuit board 3 is placed on the board position 5. The light-emitting position 4 is adapted to the cross-sectional width of the shell 1 and the thickness of the light guide plate 2. The thickness of the shell 1 is no longer related to the thickness of the light guide plate 2. A thicker circuit board 3 can be installed, and even a thinner light guide plate 2 can be installed in the shell 1. This can greatly improve the installation diversity of the light guide plate 2 and effectively save product costs.

[0120] The four edges of the shell 1 are edge portions 6, and the cross-sectional width of the edge portion 6 is greater than the cross-sectional width of the light-emitting position 4 and the shell 1. The edge portion 6 surrounds the light-emitting position 4. Most existing shells 1 are assembled by snapping together. The edge portion 6 can ensure that there is enough space on the side of the shell 1 to set the snapping mechanism, making the assembly of the lamp more convenient. It should be noted that snapping is not the only assembly method of the shell 1. The shell 1 can be assembled by gluing or screwing. When gluing or screwing is used, the shell 1 may not be provided with the edge portion 6.

[0121] The circuit board 3 is provided with components 32, and the components 32 are arranged in the board placement position 5; it should be noted that: due to the reasons of electronic component manufacturing technology, the overall thickness of the circuit board 3 is determined by the thickness of the components 32, and the LED light source 31 on the circuit board 3 is based on the current LED light source 31 production process, and the size of the LED light source 31 can be made extremely small, so when the part of the circuit board 3 where the LED light source 31 is arranged is set in the light-emitting position 4 and connected to the light guide plate 2, and the part where the components 32 are arranged is set in the board placement position 5, this structure can also be used, which should be within the protection scope of the present invention.

[0122] The technical solution of the present invention is further illustrated below with reference to specific embodiments 4-5.

[0123] Example 4

[0124] As shown in Figures 11, 12 and 13, a light guide plate structure for a marker light includes a shell 1, a light guide plate 2 and a light source plate 3 arranged in the shell 1, the light guide plate 2 is provided with a light inlet end 4 and a light emitting end 5, the thickness of the light inlet end 4 is greater than the thickness of the light emitting end 5, an LED light source 31 is provided on the light source plate 3, the light of the LED light source 31 is transmitted to the light emitting end 5 through the light inlet end 4, the light of the LED light source 31 is transmitted to the light emitting end 5 through the light inlet end 4, the light of the LED light source 31 is transmitted to the light emitting end 5 through the light inlet end 4, and the area of ​​the light inlet end 4 is locally increased, so that the light of the LED light source 31 is more fully utilized, and the thickness of the light emitting end 5 is no longer limited by the size of the LED light source 31, and can be set thinner, thereby saving material for the light guide plate 2, making the product thickness orderly, more coordinated and beautiful, and more beautiful in craftsmanship design. It should be noted that the length of the light-entering surface 41 can be set according to the position of the LED light source 31, the illumination angle and the brightness requirement of the light guide plate 2. The thickness of the light-entering surface 41 is equal to the thickness of the light-entering end 4, and the part with a thickness lower than the light-entering surface 41 is set as the light-emitting end 5.

[0125] The housing 1 is provided with a marking hole 11. The position of the light-emitting end 5 is adapted to the position of the marking hole 11 and is displayed externally through the marking hole 11. The light-inlet end 4 is disposed outside the marking hole 11 to prevent the light-inlet end 4 from affecting the luminous effect of the marking light. The light-emitting end 5 is displayed externally through the marking hole 11, which means that the light from the light-emitting end 5 is displayed externally through the marking hole 11. If a light-transmitting material such as translucent paper or translucent plastic is provided between the light-emitting end 5 and the marking hole 11, it falls within the scope of external display.

[0126] The thickness of the light inlet end 4 is greater than the thickness of the LED light source 31 , and the thickness of the light inlet end 4 is adapted to the thickness of the shell 1 . When the shell 1 is subjected to force, the light inlet end 4 can support the shell 1 to prevent the shell 1 from contacting the LED light source 31 and causing damage to the LED light source 31 .

[0127] One side of the light guide plate 2 extends upward to form a light inlet end 4, and the light inlet end 4 is provided with a bevel 6 connected to the light emitting end 5. The other side is a plane. The bevel 6 can make light better enter the light emitting end 5 from the light inlet end 4, and the light effect can be fully utilized.

[0128] The light input end 4 is arranged at the edge of the light emitting end 5, and the LED light source 31 is arranged at the edge of the light guide plate 2. It should be noted that the edge of the light guide plate 2 refers to multiple directions such as up, down, left and right of the light guide plate 2, and does not only refer to the lower edge shown in the drawings.

[0129] The light inlet end 4 is provided with a recessed light inlet position, which can be recessed to form a shape matching the LED light source 31 or formed into a sawtooth shape, both of which aim to bend and refract the light from the LED light source 31 to improve light utilization.

[0130] A light-emitting position 12 and a board placement position 13 are provided in the shell 1, the light-emitting end 5 is arranged in the light-emitting position 13, the light source board 3 and the light input end 4 are arranged in the board placement position 13, the cross-sectional width of the light-emitting position 12 and the shell 1 is smaller than the width of the board placement position 13 and the shell 1, and the cross-sectional width of the light-emitting position 12 and the shell 1 and the thickness of the light-emitting end 5 are adapted.

[0131] Example 5

[0132] As shown in Figures 14, 15 and 16, a light guide plate structure for a marker light includes a shell 1, a light guide plate 2 and a light source plate 3 arranged in the shell 1, the light guide plate 2 is provided with a light inlet end 4 and a light emitting end 5, the thickness of the light inlet end 4 is greater than the thickness of the light emitting end 5, an LED light source 31 is provided on the light source plate 3, the light of the LED light source 31 is transmitted to the light emitting end 5 through the light inlet end 4, the light of the LED light source 31 is transmitted to the light emitting end 5 through the light inlet end 4, the light of the LED light source 31 is transmitted to the light emitting end 5 through the light inlet end 4, and the area of ​​the light inlet end 4 is locally increased, so that the light of the LED light source 31 is more fully utilized, and the thickness of the light emitting end 5 is no longer limited by the size of the LED light source 31, and can be set thinner, thereby saving material for the light guide plate 2, making the product thickness orderly, more coordinated and beautiful, and more beautiful in craftsmanship design. It should be noted that the length of the light-entering surface 41 can be set according to the position of the LED light source 31, the illumination angle and the brightness requirement of the light guide plate 2. The thickness of the light-entering surface 41 is equal to the thickness of the light-entering end 4, and the part with a thickness lower than the light-entering surface 41 is set as the light-emitting end 5.

[0133] The housing 1 is provided with a marking hole 11. The position of the light-emitting end 5 is adapted to the position of the marking hole 11 and is displayed externally through the marking hole 11. The light-inlet end 4 is disposed outside the marking hole 11 to prevent the light-inlet end 4 from affecting the luminous effect of the marking light. The light-emitting end 5 is displayed externally through the marking hole 11, which means that the light from the light-emitting end 5 is displayed externally through the marking hole 11. If a light-transmitting material such as translucent paper or translucent plastic is provided between the light-emitting end 5 and the marking hole 11, it falls within the scope of external display.

[0134] The thickness of the light inlet end 4 is greater than the thickness of the LED light source 31 , and the thickness of the light inlet end 4 is adapted to the thickness of the shell 1 . When the shell 1 is subjected to force, the light inlet end 4 can support the shell 1 to prevent the shell 1 from contacting the LED light source 31 and causing damage to the LED light source 31 .

[0135] Both sides of the light guide plate 2 extend outward to form a light inlet end 4, and are provided with a bevel 6 to connect to the light emitting end 5. The light inlet end 4 includes a light inlet surface 41, and the light inlet surface 41 extends toward the light emitting end 5 to form an extension end 42. The extension end 42 is connected to the light emitting end 5 through the bevel 6. Light enters the light guide plate 2 through the light inlet surface 41, and is converged by the extension end 42 and then enters the light emitting end 5 through the bevel 6. The bevel 6 and the extension end 42 can enable light to better enter the light emitting end 5 from the light inlet end 4, and the light effect can be better utilized.

[0136] The light source plate 3 is arranged in the middle of the light guide plate 2, and the light guide plate 2 is provided with a light inlet end 4 at a position opposite to the LED light source 31. The light guide plate 2 is divided into two or more independent light-emitting groups, which are optically isolated from each other and can emit light independently. The light-emitting groups are provided with a light inlet end 4, a light-emitting end 5 and an LED light source 31.

[0137] The light inlet end 4 is provided with a recessed light inlet position, which can be recessed to form a shape matching the LED light source 31 or formed into a sawtooth shape, both of which aim to bend and refract the light from the LED light source 31 to improve light utilization.

[0138] A light-emitting position 12 and a board placement position 13 are provided in the shell 1, the light-emitting end 5 is arranged in the light-emitting position 13, the light source board 3 and the light input end 4 are arranged in the board placement position 13, the cross-sectional width of the light-emitting position 12 and the shell 1 is smaller than the width of the board placement position 13 and the shell 1, and the cross-sectional width of the light-emitting position 12 and the shell 1 and the thickness of the light-emitting end 5 are adapted.

[0139] The lamp in some embodiments of the present application includes a power storage component connected to a power input terminal of the lamp.

[0140] Figure 10 shows a macroscopic schematic diagram of the electrical connection topology C311 between the storage components 210 and 211, electrical components, and sub-components according to some embodiments of the present application, and between the storage components and the light source panel. Each of the storage components 210 and 211 includes an anode connection terminal and a cathode connection terminal. For example, the storage component 210 has an anode connection terminal connected to the busbar 234 and a cathode connection terminal connected to the busbar B341. In addition, the storage component 211 has an anode connection terminal connected to the busbar B343 and a cathode connection terminal connected to the switch ONOFF361.

[0141] As shown in Figure 10, switches ONOFF361, ONOFF362, ONOFF365, and ONOFF367 are single-pole double throw (SPDT). For example, any one or all of switches ONOFF361, ONOFF362, ONOFF365, and ONOFF367 can be "ON-ON" or "ON-OFF-ON" types of single-pole double throw switches. Any one or all of switches ONOFF361, ONOFF362, ONOFF365, and ONOFF367 can include one or more contactors, relays, or transistors. For example, switches ONOFF361, ONOFF362, ONOFF365, and ONOFF367 can all be single-pole double throw contactors. In another embodiment, switches ONOFF361, ONOFF362, ONOFF365, and ONOFF367 can all include two single-pole single throw (SPST) contactors that are appropriately wired to achieve single-pole double throw connectivity. As shown in Figure 10, switches ONOFF371 and ONOFF373 ​​are both single-pole, single-throw switches configured to connect and disconnect corresponding terminals of battery charging unit EU381 from busbars B341 and B343. Either or both of switches ONOFF371 and ONOFF373 ​​may include contactors, relays, or transistors.

[0142] As shown in FIG10 , the storage components 210 and 211 are coupled in series. For example, the switches ONOFF361 and ONOFF362 are configured to connect the anode connection terminal of the storage component 210 to the cathode connection terminal of the storage component 211. The light source board 31 of the emergency lighting fixture is shown as being connected to the storage component 210 via the switches ONOFF367 and ONOFF365. As shown in FIG10 , the switch ONOFF367 connects the bus bar B341 to the cathode connection terminal of the light source board 31, while the switch ONOFF365 connects the bus bar 234 to the anode connection terminal of the light source board 31.

[0143] In some embodiments, the storage component 210 may also be referred to as a battery cell and may further include modules 313, 315, 317, and 319. In some embodiments, the storage component 211 may also include submodules 203, 205, 207, and 209, which may also be referred to as battery cells. For example, the storage component 210 may be referred to as a "string of battery cells" (i.e., battery cells coupled in series). The voltage of the storage component 210 may be a combination of battery cells 313, 315, 317, and 319. For example, as schematically shown in Figure 10, the voltage of the storage component 210 is the sum of the voltages of each of the battery cells 313, 315, 317, and 319. In another embodiment, the storage component (e.g., the storage component 210 or the storage component 211) may include one or more battery cells coupled in parallel (e.g., to increase the current capacity of the storage component). For clarity, the present application is described based on the storage component.

[0144] For simplicity, topology C311 illustrates two storage components, but according to the present application, more than two storage components can be managed. For example, three storage components that operate at 220V can be connected using a switch configuration in parallel (e.g., charging at 110V) or in series (e.g., charging at 220, 240 volts). In another embodiment, three storage components that each operate at 220 volts can be configured in parallel (i.e., in parallel) (e.g., charging at 220 volts), or two of the three can be configured in parallel and then connected in series with the third (e.g., charging at 220V, 240 volts). According to the present application, any suitable number of storage components can be managed (e.g., coupled in series or in parallel with a switch configuration). It will be understood that the storage component can include one or more submodules (e.g., separate submodules that can be coupled together to form a module).

[0145] Figure 17 shows a block diagram of a voltage stabilization circuit 555 according to an embodiment of the present application. Circuit 555 can be configured to receive an input voltage (VIN) and a ground voltage (GND) at corresponding power input terminals of a lamp. Circuit 555 can also be configured to transmit (e.g., output) an output voltage (VOUT) at an output terminal. The output voltage is regulated so that fluctuations in the input voltage (e.g., fluctuations) are not reflected in the output voltage. The output voltage is lower than the input voltage by a voltage difference.

[0146] Circuit 555 includes a linear DC regulator (e.g., linear DC regulator) 110 configured to regulate the output voltage (VOUT) to be less than the input voltage (VjN) within a small voltage difference (e.g., VDO ≤ 100 mV). The linear DC regulator 666 dissipates power during regulation. The dissipated power is proportional to the voltage difference (VDO). Therefore, reducing VDO reduces regulation losses and reduces heat dissipation requirements.

[0147] FIG17 shows a block diagram of a linear DC voltage regulator unit 666. The linear DC voltage regulator unit 666 includes a transistor 111. Transistor 111 can be implemented using a variety of transistor types, such as a BJT, a MOSFET, or a JFET. For example, transistor 111 can be an N-channel MOSFET or a P-channel MOSFET. In practice, a N-channel MOSFET linear DC voltage regulator unit can offer advantages over other transistor types. For example, a N-channel MOSFET linear DC voltage regulator unit can provide a lower voltage drop (e.g., VDO) than a P-channel MOSFET linear DC voltage regulator unit.

[0148] Regulation can be achieved by controlling the voltage drop across the transistor 111. For example, the voltage drop between the drain terminal (D) 112 and the source terminal (S) 113 of a N-channel MOSFET can be adjusted by the voltage applied to the gate terminal (G) 114 of an N-channel MOSFET.

[0149] The linear DC regulator unit 666 includes a driver circuit (e.g., a driver circuit) 115 to provide a voltage at the gate terminal 114 of the transistor 111. The driver circuit 115 can be configured to receive an output voltage (VOUT) via a feedback loop (also known as a feedback loop) 116 formed between the driver circuit 115 and the transistor 111. The driver circuit 115 can also be configured to receive a reference voltage (VREF). Once enabled, the driver circuit can function as a differential amplifier unit having an output voltage (VG) based on the difference between the reference voltage and the output voltage (e.g., Vref-Vout). The output voltage VG of the driver circuit can be applied to the gate 114 of the transistor 111 to control the transistor's operating point (e.g., its conduction, its voltage drop (VDO), etc.).

[0150] The driver circuit 115 operates from a high voltage (VCHP) (e.g., high rail) and a low voltage (GND) (e.g., low rail). The driver circuit's low voltage (GND) can also be a reference voltage for VIN. That is, the linear DC regulator unit and the input voltage share the same voltage range. To provide adequate control of transistor 111, VCHp can be greater than the input voltage VIN. For example, when the input voltage VIN is 1 volt (e.g., at the drain terminal 112) and the voltage difference is 0.1V (i.e., VIN = 1V, VDO = 0.1V), the voltage at the output port of the transistor device (e.g., at the source terminal 113) can be 0.9V (e.g., Vout = 0.9V). To turn on the transistor device 111 (e.g., operate in the on state), the voltage at the output port of the driver circuit 115 can be at least 0.9V plus the threshold voltage (VT) of the transistor device 111. For a threshold voltage of 0.7V (e.g., t=0.7), the driver circuit outputs a voltage of at least 1.6V (e.g., Vg≥1.6V). Therefore, the driver circuit can be powered by a high voltage that enables the driver circuit to output at least 1.6V. Therefore, in an embodiment of the linear DC voltage regulator unit 666, the high voltage provided to the driver circuit 115 is set to be greater than the input voltage (i.e., Vchp>Vin). A high voltage (VCHP) set as a single value greater than all expected input voltages (VIN) can be inefficient (e.g., once VIN is low). The circuits and methods of the present application provide an upper limit value (VCHP) based on the input voltage (VIN) to provide efficient operation.

[0151] The driver circuit 115 can be enabled for operation via an enable signal EN. The enable signal EN can be a digital signal, a low voltage of which disables the operation of the driver circuit 115, and a high voltage of which enables the operation of the driver circuit 115. In a scenario where the voltage drops below a desired target, desired threshold, the enable signal can be used to shut down the linear DC regulator unit 666. This control can be used to protect (e.g., a device coupled to the circuit 555). The circuit of the present application advantageously utilizes multiple criteria to determine the state of the enable signal EN.

[0152] Returning to FIG. 17 , the circuit 555 further includes a DC-DC converter 888 and a DC-DC converter control circuit 999 to generate the high voltage VchP, and a voltage under-lockout unit 120 to generate the enable signal EN.

[0153] An example of a DC-DC converter circuit is shown in FIG17 . The exemplary DC-DC converter shown is provided to aid understanding and is not intended as a limiting example for this application. The circuits and methods disclosed herein can be used in conjunction with other DC-DC converter types and architectures. In this application, a DC-DC converter circuit similar to that shown in FIG17 is described. However, the DC-DC converter circuit includes input switches and output switches that are individually controlled by different clock signals, as an alternative to coupling a storage capacitor to the input port and the output port. Customizable switching control allows the use of clock signals that do not have overlapping transitions to improve conversion efficiency. Additionally, the input switch is controlled by a clock signal (clock signal) that is level-shifted relative to the input voltage. Control of the level-shifted switching improves efficiency and allows a range of input voltages to be constructed for DC voltage conversion.

[0154] DC-DC converter 888 is a symmetrical cross-coupled DC-DC converter that receives an input voltage VN and generates a high voltage V CHP for powering circuit 555 (e.g., driver circuit 115). The voltage is increased by charging and discharging two capacitors C1 and C2 using a network of transistors. The transistors operate as switches controlled by a clock signal (CLK) and its inverse (CLK-i). For example, when CLK is high and CLK-i is low, transistors M1 and M3 are turned on, while transistors M4 and M2 are turned off. In this state, capacitor C1 is coupled to the input port and charged by VIN. When CLK is low and CLK-i is high, transistors M1 and M3 are turned off, while transistors M4 and M2 are turned on. In this state, capacitor C1 is coupled to the output port. By charging and discharging capacitors C1 and C2, V CHP is generated at a value greater than VIN. The exact upper limit depends on the clock signal (CLK, CLK-i). For example, the frequency of the clock signal may correspond to the voltage vchp at the output port of the DC-DC converter.

[0155] To control the DC-DC converter voltage VCHP, as shown in FIG17 , circuit 555 may include a DC-DC converter control circuit 999. The DC-DC converter control circuit controls DC-DC converter 888 to generate a DC-DC converter voltage (VCHP) based on the input voltage (VIN) present at the input port of linear DC regulator unit 666 and based on the DC-DC converter voltage fed back from the DC-DC converter to the input port of the DC-DC converter control circuit. The magnitude of the generated DC-DC converter voltage (VCHP) is regulated to exceed the input voltage. The exact value of VCHP, or the relationship between VCHP and VIN, may be based on operation (e.g., stability, efficiency) within a range of VIN (e.g., 1.1V to 3.6V). In some embodiments, charge pump control circuit 999 may also be configured to limit the DC-DC converter voltage (VCHP) to a high voltage threshold (VCHPMAX) to prevent damage (e.g., as determined by a process safe operating area).

[0156] FIG17 shows a block diagram of a DC-DC converter control circuit 999. The DC-DC converter control circuit 999 can be configured to generate / control the DC-DC converter's clock signals (CLK, CLK-i) based on the input voltages (VjN, Vchp). For example, the amplitude of the clock signals (CLK, CLK-i) can be equal to the amplitude of the input voltage. Alternatively, the frequency of the clock signals (CLK, CLK-i) can be proportionally adjusted based on the amplitude of the input voltage (VIN). The DC-DC converter control circuit 999 can also be configured to limit the adjustment of the clock signal frequency to a maximum value to prevent damage to the DC-DC converter and / or the DC-DC converter's output (V CHP ) from damaging surrounding circuitry.

[0157] As shown in FIG17 , the DC-DC converter control circuit may include a potential difference sensing module 141. The potential difference sensing module is configured to generate a floating voltage level relative to VCHP. Therefore, the potential difference sensing module may include a voltage divider or voltage regulation device to set at least one voltage value relative to VIN and / or VCHP. This facilitates adapting the voltage levels of VIN and VCHP to other voltage ranges.

[0158] The DC-DC converter control circuit 999 also includes a differential amplifier unit 142 configured to perform one or more comparisons. A first comparison result 146 compares the relative magnitudes associated with VCHP and Vin. A second comparison result 147 compares the relative magnitude of VCHP to a voltage associated with a high-voltage threshold, thereby ensuring safe and proper function of the DC-DC converter. Differential amplifier 142 can respond to the comparisons in various ways. For example, a second comparison result determining that VCHP is equal to or greater than the high-voltage threshold may cause the amplifier to ignore (e.g., suppress) the result of the first comparison result. However, if the second comparison determines that VCHP is less than the high-voltage threshold, the amplifier output may be determined by the relationship between VCHP and VIN.

[0159] Differential amplifier unit 142 drives voltage-controlled crystal oscillator (VCO) 143. The VCO is configured to receive an input voltage and generate a crystal oscillator signal having a frequency corresponding to the voltage at the VCO input port (e.g., VIN - VCHP). The DC-DC converter control circuit also includes clock logic circuit 145, which receives the oscillation signal from the crystal oscillator and generates a corresponding digital clock signal (CLK) and a complementary clock signal (CLK-i). The clock signals control DC-DC converter 888, as previously described.

[0160] The DC-DC converter 888 and the DC-DC converter control circuit 999 can work together to generate a voltage (VCHP) that is higher than the input voltage (VIN) by a predetermined value (e.g., no greater than a high voltage threshold (VCHPMAX) regardless of how VIN floats). The high voltage threshold can be selected to correspond to the high voltage threshold rating of the device technology of the linear DC regulator unit.

[0161] As shown in FIG17 , circuit 555 may include a voltage under-lockout (UVLO) circuit 777. Generally speaking, UVLO circuit 777 (via enable signal EN) disables operation once the DC-DC converter voltage (VCHP) is at or below a minimum voltage (VCHPMIN). In other words, a single criterion is used to determine whether to enable or disable driver circuit 115. An advantage of the disclosed voltage under-lockout circuit is that it can utilize multiple criteria and logic to determine whether to enable or disable driver circuit 115. For example, the UVLO circuit may determine whether the DC-DC converter voltage (VCHP) is greater than the output voltage of linear DC regulator 666 by a predetermined amount, and then enable the driver circuit to ensure that transistor 111 can be controlled.

[0162] FIG17 shows a block diagram of an embodiment of a voltage underlock unit 777. The voltage underlock unit receives the DC-DC converter voltage (VCHP) and outputs an enable signal (EN). The enable signal can be a digital signal EN that, based on its high / low state, can enable / disable operation of the driver circuit 115 of the linear DC regulator unit 666. The voltage underlock unit 777 includes a potential difference sensing module that receives, creates, and / or manipulates voltages for comparison. Thus, the voltage sensing 121 may include circuitry such as a voltage source, a voltage reference source, and a voltage regulator to output a voltage level relative to another voltage level (e.g., VCHP) and a voltage relative to ground. The voltage underlock unit may provide an output voltage to a comparison stage circuit for comparison. Thus, the comparator 123 may include a first circuit for determining relative voltage states. For example, the comparator may be configured to indicate that a first voltage is greater than a second voltage. The comparison output 123 may include one or more signals indicating the result of the voltage level comparison. The voltage underlock unit also includes logic stage circuitry. The logic circuit 125 may include one or more logic gates such as inverters, AND, OR, XOR, etc., which can generate an enable signal (EN) based on a logical operation applied to one or more results of comparison 123. Therefore, the state of the high and low comments of the enable signal can be determined based on at least one criterion. To avoid confusion, it can be understood that other enable signals may also control the voltage stabilization circuit. The externally applied enable (EN) signal can be used to control the overall operation of the voltage stabilization circuit. The enable signal (EN) mentioned in this application is a signal generated within the voltage stabilization circuit and used to control the drive circuit.

[0163] [Alternative embodiment]:

[0164] Example

[0165] 1. A light guide plate structure for a marker light, comprising:

[0166] case,

[0167] A light guide plate and a light source plate are arranged in the housing;

[0168] The light guide plate is provided with a light input end and a light emitting end, the thickness of the light input end is greater than the thickness of the light emitting end, and the light source board is provided with an LED light source, the light of which can be transmitted to the light emitting end through the light input end.

[0169] 2. The marker light guide plate structure according to embodiment 1, characterized in that: the housing is provided with a marker hole, the position of the light-emitting end is adapted to the position of the marker hole and is displayed externally through the marker hole, and the light-inlet end is provided outside the marker hole;

[0170] A light-transmitting material is provided between the light-emitting end and the marking hole, and the light-transmitting material comprises light-transmitting paper or light-transmitting plastic.

[0171] 3. The light guide plate structure for the marker light according to embodiment 1 is characterized in that the light-incoming end includes a light-incoming surface, and the light-incoming surface faces the LED light source.

[0172] 4. The marker light guide plate structure according to embodiment 1 is characterized in that the thickness of the light-inlet end is greater than the thickness of the LED light source.

[0173] 5. A marker light light guide plate structure according to embodiment 1, characterized in that the thickness of the light-inlet end is adapted to the thickness of the housing.

[0174] 6. The light guide plate structure for a marker light according to embodiment 1 is characterized in that the light-incoming end and the light-emitting end are connected by an inclined surface.

[0175] 7. The marker light guide plate structure according to embodiment 1 is characterized in that: the light-incoming end includes a light-incoming surface, the light-incoming surface extends toward the light-emitting end to form an extended end, and the extended end is connected to the light-emitting end via an inclined surface.

[0176] 8. The light guide plate structure for a marker light according to embodiment 1 is characterized in that one side of the light guide plate extends upward to form a light-inlet end, the light-inlet end is provided with an inclined surface connected to the light-emitting end, and the other side is a flat surface.

[0177] 9. The light guide plate structure for a marker light according to embodiment 1 is characterized in that both sides of the light guide plate extend outward to form a light-inlet end, and are provided with an inclined surface connected to the light-emitting end.

[0178] 10. The light guide plate structure of the marker light according to embodiment 1 is characterized in that the light input end is arranged at the edge of the light emitting end, and the LED light source is arranged at the edge of the light guide plate.

[0179] 11. The light guide plate structure for a marker light according to embodiment 1 is characterized in that the light source plate is arranged in the middle of the light guide plate, and a light inlet end is provided at a position of the light guide plate facing the LED light source.

[0180] 12. The light guide plate structure for a marker light according to embodiment 1 is characterized in that a recessed light entry position is provided at the light entry end.

[0181] 13. The light guide plate structure of the marker light according to Example 1 is characterized in that: a light-emitting position and a board placement position are provided in the shell, the light-emitting end is arranged in the light-emitting position, the light source board and the light-input end are arranged in the board placement position, and the cross-sectional width of the light-emitting position and the shell is smaller than the width of the board placement position and the shell.

[0182] 14. The light guide plate structure of the marker light according to embodiment 13 is characterized in that the light-emitting position is adapted to the cross-sectional width of the housing and the thickness of the light-emitting end.

[0183] 15. An ultra-thin marker light, characterized in that it includes a shell, a light guide plate and a circuit board arranged in the shell, the shell is provided with a light-emitting position and a board placement position, the light guide plate is arranged in the light-emitting position, the circuit board is arranged in the board placement position, and the cross-sectional width of the light-emitting position and the shell is smaller than the width of the board placement position and the shell.

[0184] 16. An ultra-thin marker light according to embodiment 15, characterized in that the light-emitting position is adapted to the cross-sectional width of the housing and the thickness of the light guide plate.

[0185] 17. An ultra-thin marker light according to embodiment 15, characterized in that: the shell is provided with an inwardly recessed support portion, the support portion is arranged in the light-emitting position, and the cross-sectional width between the support portion and the shell is smaller than the width of the board placement position.

[0186] 18. An ultra-thin marker light according to embodiment 15, characterized in that the board placement position is arranged at the edge of the light-emitting position, and the circuit board is arranged at the edge of the light guide plate.

[0187] 19. An ultra-thin marker light according to embodiment 15, characterized in that the board placement position is arranged in the middle of the light-emitting position, and the circuit board is arranged in the middle of the light guide plate.

[0188] 20. An ultra-thin marker light according to embodiment 15, characterized in that: an LED light source is provided on the circuit board, and the light guide plate is optically connected to the LED light source.

[0189] 21. An ultra-thin marker lamp according to embodiment 15, characterized in that: the shell includes a first shell and a second shell, the first shell and / or the second shell is provided with a marker hole, and the position of the marker hole is adapted to the position of the light-emitting position.

[0190] 22. An ultra-thin marker light according to embodiment 20, characterized in that components are provided on the circuit board, and the components are arranged in the board placement position.

[0191] 23. An ultra-thin marker light according to embodiment 15, characterized in that: a battery is provided in the shell, the shell is provided with a battery position, the cross-sectional width of the battery position is greater than the cross-sectional width of the light-emitting position, and the battery is arranged in the battery position.

[0192] 24. An ultra-thin marker light according to embodiment 15, characterized in that: the four edges of the shell are edge portions, the cross-sectional width of the edge portions is greater than the cross-sectional widths of the light-emitting position and the shell, and the edge portions surround the light-emitting position.

[0193] Each embodiment in this specification is described in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each optional technical feature can be combined with other embodiments in any reasonable way. The contents of each embodiment and under each heading can also be combined in any reasonable way. Each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple. For the relevant parts, please refer to the partial description of the method embodiment.

[0194] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two. It should be understood that the term "and / or" used in this article is merely an association relationship describing associated objects, indicating that three relationships can exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0195] Although the above describes specific embodiments of the present application, those skilled in the art will understand that these are merely illustrative and that the scope of protection of the present application is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and such changes and modifications shall fall within the scope of protection of the present application.

Claims

1. A light guide plate structure for a marker light, characterized in that: include: case, A light guide plate and a light source plate are arranged in the housing; The light guide plate is provided with a light input end and a light emitting end, the thickness of the light input end is greater than the thickness of the light emitting end, and the light source board is provided with an LED light source, the light of which can be transmitted to the light emitting end through the light input end.

2. The light guide plate structure for a marker light according to claim 1, characterized in that: The housing is provided with a marking hole, the position of the light-emitting end is adapted to the position of the marking hole and is displayed to the outside through the marking hole, and the light-inlet end is arranged outside the marking hole; A light-transmitting material is provided between the light-emitting end and the marking hole, and the light-transmitting material comprises light-transmitting paper or light-transmitting plastic.

3. The light guide plate structure for a marker light according to claim 1, characterized in that: The light-incoming end includes a light-incoming surface, and the light-incoming surface faces the LED light source.

4. The light guide plate structure for a marker light according to claim 1, characterized in that: The thickness of the light-inlet end is greater than the thickness of the LED light source.

5. The light guide plate structure of a marker light according to claim 1, characterized in that: The thickness of the light-inlet end is adapted to the thickness of the housing.

6. The light guide plate structure for a marker light according to claim 1, characterized in that: The light-incoming end and the light-emitting end are connected via an inclined surface.

7. The light guide plate structure for a marker light according to claim 1, characterized in that: The light-incoming end includes a light-incoming surface, and the light-incoming surface extends toward the light-emitting end to form an extending end. The extending end is connected to the light-emitting end via an inclined surface.

8. The light guide plate structure for a marker light according to claim 1, characterized in that: One side of the light guide plate extends upward to form a light-inlet end, the light-inlet end is provided with an inclined surface connected to the light-emitting end, and the other side is a flat surface.

9. The light guide plate structure for a marker light according to claim 1, characterized in that: Both sides of the light guide plate extend outward to form a light-incoming end, and are provided with an inclined surface to connect the light-emitting end.

10. The light guide plate structure of a marker light according to claim 1, characterized in that: The light-incoming end is arranged at the edge of the light-emitting end, and the LED light source is arranged at the edge of the light guide plate.

11. The light guide plate structure of a marker light according to claim 1, characterized in that: The light source plate is arranged in the middle of the light guide plate, and a light inlet end is provided at a position of the light guide plate facing the LED light source.

12. The light guide plate structure of a marker light according to claim 1, characterized in that: The light-inlet end is provided with a light-inlet position formed by a recess.

13. The light guide plate structure for a marker light according to claim 1, characterized in that: The shell is provided with a light-emitting position and a board placement position, the light-emitting end is arranged in the light-emitting position, the light source board and the light-input end are arranged in the board placement position, and the cross-sectional width of the light-emitting position and the shell is smaller than the width of the board placement position and the shell.

14. The light guide plate structure for a marker light according to claim 13, characterized in that: The light-emitting position is adapted to the cross-sectional width of the housing and the thickness of the light-emitting end.

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