Light-emitting device and light engine

Abstract

A light-emitting device, comprising: a light-emitting panel, a tapered-rod fixing member and a plurality of tapered rods. By means of configuring the tapered-rod fixing member to be a structure comprising a plurality of mounting portions, and each mounting portion having a mounting hole, the tapered rods can be embedded in the mounting holes, and coupling-in ends of the tapered rods abut against lamp beads, so as to transmit light rays emitted by the lamp beads. Part of the light rays do not enter the tapered rods, the lamp beads are sleeved in the mounting portions, and the light rays that do not enter the tapered rods will be repeatedly refracted in the mounting portions and converted into heat, and therefore the light rays that do not enter the tapered rods will not leak, but are converted into heat and transferred to the mounting portions, and finally the mounting portions dissipate same by means of heat dissipation, thereby eliminating the light rays that do not enter the tapered rods. The light-emitting device is applied to light engines, and the light-emitting device can be individually subjected to heat dissipation, so as to improve the overall heat dissipation efficiency of light engines, and reduce the overall temperature of light engines.

Description

Light-emitting device and optical engine TECHNICAL FIELD

[0001] The present application relates to the technical field of light sources, in particular to a light-emitting device and an optical engine. BACKGROUND

[0002] An optical engine is a projection display component composed of a light-emitting device, a display panel, an optical projection lens, etc. in a cavity. At present, the optical engine usually adopts a light-emitting diode (LED) and a cone rod as a light-emitting device, the LED can emit light, the cone rod can transmit the light to the display panel, and a liquid crystal display (LCD) screen is adopted as the display panel.

[0003] Since the light will produce Fresnel loss when it transmits through the interface composed of different refractive materials, more than 20% of the light will be lost in the process of coupling the light emitted by the LED to the cone rod, and this part of the loss will be finally converted into heat through the continuous refraction of the medium.

[0004] In the prior art, the light-emitting device, the display panel, the optical projection lens, etc. are usually arranged in the optical engine cavity to avoid the light leakage of the light-emitting device. The heat in the cavity where the LCD screen is located is usually guided out by an internal circulation mode in the optical engine cavity. The internal circulation refers to using the air in the optical engine cavity as a heat transfer medium. Since the specific heat of air is low, the temperature in the cavity is easy to rise rapidly. If the light-emitting device needs to be cooled, the optical engine cavity needs to be cooled first. The efficiency of this cooling mode is very low, and the temperature in the optical engine cavity is easy to accumulate, resulting in a high temperature in the optical engine cavity. The high temperature will cause the LCD screen in the optical engine cavity to be damaged more easily.

[0005] Utility model content

[0006] The present application provides a light-emitting device and an optical engine to at least partially improve the above problems.

[0007] The present application is implemented by the following technical solutions.

[0008] In one aspect, the present application provides a light-emitting device, comprising: a light-emitting panel, a cone rod fixing member, and a plurality of cone rods. The surface of the light-emitting panel is provided with a plurality of lamp beads. The cone rod fixing member comprises a plurality of mounting portions, each mounting portion forms a mounting hole, the end face of each mounting portion abuts against the light-emitting panel, the plurality of lamp beads correspond to the plurality of mounting portions one by one, and are located in the corresponding mounting holes. Each cone rod comprises opposite coupling-in ends and coupling-out ends, the cross-sectional area of the coupling-in end is smaller than that of the coupling-out end, and the coupling-in end of each cone rod is embedded in a mounting hole and abuts against the lamp bead.

[0009] In some embodiments, the light emitting device further comprises a dustproof seal arranged on a surface of the light emitting panel, the dustproof seal is provided with a plurality of light transmission holes, the plurality of lamp beads are located in the plurality of light transmission holes one by one, and an end surface of the mounting portion abuts against the dustproof seal.

[0010] In some embodiments, the mounting hole comprises a first mounting hole and a second mounting hole in communication, the first mounting hole is adjacent to the light emitting panel, the lamp bead is located in the first mounting hole, and an inner diameter of an end of the second mounting hole close to the first mounting hole is smaller than an inner diameter of the first mounting hole.

[0011] In some embodiments, the inner diameter of the second mounting hole gradually increases from an end close to the first mounting hole to an end away from the first mounting hole.

[0012] In some embodiments, each of the mounting portions comprises a first end portion and a second end portion, the first end portions of adjacent mounting portions are connected, the second end portions abut against the light emitting panel, a cross-sectional area of the first end portion is larger than a cross-sectional area of the second end portion, and the second end portions of adjacent mounting portions have a gap therebetween.

[0013] In some embodiments, the taper rod fixing member has a convex column, the light emitting panel has a concave hole matched with the convex column, and the convex column is embedded into the concave hole to connect the taper rod fixing member to the light emitting panel.

[0014] In some embodiments, the light emitting device further comprises a spring sheet arranged on the taper rod fixing member and pressing against the taper rod so that the coupling-in end of the taper rod abuts against the lamp bead.

[0015] In some embodiments, the light emitting device further comprises a heat dissipation member connected to a surface of the light emitting panel away from the lamp bead.

[0016] In another aspect, the embodiments also provide a light machine, comprising: a main body and at least one light emitting device as described above, the main body comprising a housing and a lens, the lens being arranged in the housing, and the light emitting device being arranged outside the housing.

[0017] In some embodiments, the light emitting device is detachably connected to the housing.

[0018] The light emitting device provided by the embodiment of the present application has the following advantages: the taper rod fixing member is provided in a structure comprising a plurality of mounting portions, each of which has a mounting hole, the mounting hole can be arranged corresponding to the lamp bead on the light emitting panel, the taper rod can be embedded in the mounting hole, the coupling-in end of the taper rod abuts against the lamp bead to transmit the light emitted by the lamp bead, since part of the light does not enter the taper rod, the lamp bead cover is arranged in the mounting portion in the embodiment, the light not entering the taper rod is repeatedly refracted in the mounting portion to be converted into heat, thus the light not entering the taper rod will not leak out, but is converted into heat to be transmitted to the mounting portion, and is finally dissipated by dissipating heat from the mounting portion, so as to eliminate the light not entering the taper rod, the light emitting device provided by the embodiment of the present application is applied to an optical machine, the overall heat dissipation efficiency of the optical machine can be improved by dissipating heat from the light emitting device alone, and the overall temperature of the optical machine is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0020] Fig. 1 shows a structure schematic diagram of an optical machine according to an embodiment of the present application.

[0021] Fig. 2 shows an exploded view of an optical machine according to an embodiment of the present application.

[0022] Fig. 3 shows a structure schematic diagram of a light emitting device according to an embodiment of the present application.

[0023] Fig. 4 shows an exploded view of a light emitting device according to an embodiment of the present application.

[0024] Fig. 5 shows a sectional view of a light emitting device according to an embodiment of the present application.

[0025] Fig. 6 shows a partial enlarged view of a light emitting device according to an embodiment of the present application in a sectional state.

[0026] Fig. 7 shows a schematic diagram of the assembly of a taper rod fixing member and a taper rod in a light emitting device according to an embodiment of the present application.

[0027] Fig. 8 shows a partial enlarged view of the assembly of a taper rod fixing member and a taper rod in a light emitting device according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] The technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0030] The light engine is a projection display component composed of a light emitting device, a display panel, an optical projection lens and the like in a cavity. At present, the light engine usually adopts a light emitting diode (LED) and a cone rod as a light emitting device, the LED can emit light, the cone rod can transmit the light to the display panel, and a liquid crystal display (LCD) screen is adopted as the display panel.

[0031] Since the light will produce Fresnel loss when it transmits through the interface composed of different refractive materials, more than 20% of the light emitted by the LED will be lost in the process of coupling to the cone rod, and this part of the loss will be converted into heat through continuous refraction of the medium.

[0032] In the prior art, the light emitting device, the display panel, the optical projection lens and the like are usually arranged in the light engine cavity to avoid the light leakage of the light emitting device. Due to such structural arrangement, the heat in the cavity where the LCD screen is located is generally guided out by the internal circulation in the light engine cavity. The internal circulation refers to using the air in the light engine cavity as a heat transfer medium. Although a fan for promoting the circulation of air in the light engine cavity can be arranged in the light engine cavity, the specific heat capacity of air is low, so the temperature in the cavity is easy to rise rapidly. If the light emitting device needs to be cooled, the light engine cavity needs to be cooled first, that is, the hot air in the light engine cavity needs to be discharged from the light engine cavity, and cold air needs to be introduced into the light engine cavity. The heat on the LCD screen is then transferred to the cold air to cool the LCD screen. However, the efficiency of this cooling method is very low. Specifically, the heat generated by the LCD screen and the light emitting device will be transferred to the air in the light engine cavity, which is easy to cause the temperature accumulation in the light engine cavity, resulting in a too high temperature in the light engine cavity. Moreover, the cooling efficiency in the light engine cavity may be difficult to keep up with the heat generation efficiency of the LCD screen and the light emitting device. The high temperature will cause the LCD screen in the light engine cavity to be damaged more easily.

[0033] Based on the above problems, please refer to FIG. 1, the application embodiment provides a light machine 1, which can include a main body 20 and a light emitting device 10. Wherein the main body 20 can include a shell 210 and a lens 220, the lens 220 can be arranged inside the shell 210, the light emitting device 10 can be arranged outside the shell 210, and the light emitting device 10 can be detachably connected with the shell 210, so as to reduce the setting length of the shell 210, and further reduce the volume of the main body 20, so that the light machine 1 is more convenient to carry.

[0034] Please refer to FIG. 1 and FIG. 2, in the working process of the light machine 1, the heat generated by the lens 220 can be dissipated in the shell 210 by internal circulation, and the light emitting device 10 is arranged outside the shell 210, so that the light emitting device 10 can directly dissipate heat outside the shell, so as to avoid the accumulation of heat in the shell 210, and improve the heat dissipation efficiency of the whole light machine 1.

[0035] Specifically, please refer to FIG. 3 and FIG. 4, in this embodiment, the light emitting device 10 can include a light emitting panel 110, a cone rod fixing piece 120 and a plurality of cone rods 130, the cone rods 130 can be arranged in the cone rod fixing piece 120, and the cone rod fixing piece 120 can be used to fix the cone rods 130 to the light emitting panel 110.

[0036] The surface of the light emitting panel 110 can be provided with a plurality of lamp beads 111, which can be used to emit light. The specific arrangement of the lamp beads 111 is not limited in the application embodiment, for example, in one embodiment, a plurality of lamp beads 111 can be arranged on the surface of the light emitting panel 110, so that the light emitted by the light emitting panel 110 is more uniform. It can be understood that in some other embodiments, the arrangement of the lamp beads 111 can also be set according to actual conditions, which is not limited here. For the sake of description, the subsequent example of the lamp beads 111 arranged on the surface of the light emitting panel 110 is taken as an example. In addition, the color of the light emitted by the lamp beads 111 is not limited in the application embodiment, for example, it can emit red light, blue light or green light, etc. Of course, it can also be any combination of the above color light, which can be set according to actual conditions, which is not limited here.

[0037] The cone rod fixing piece 120 can be connected with the light emitting panel 110, and the connection mode of the cone rod fixing piece 120 and the light emitting panel 110 is not limited in the application embodiment, for example, in one embodiment, the cone rod fixing piece 120 can be detachably connected with the light emitting panel 110, so as to facilitate the disassembly and installation of the cone rod fixing piece 120 and the light emitting panel 110, and when the light emitting panel 110 is damaged or the lamp beads 111 on the light emitting panel 110 are damaged, maintenance personnel can be facilitated to repair and replace.

[0038] In addition, please refer to Fig. 2 again, in the embodiment, the cone rod fixing member 120 can also be connected with the shell 210 to connect the light emitting device 10 to the main body 20, and the cone rod fixing member 120 and the shell 210 can also be detachably connected, for example, can be clamped, hinged, etc., and the specific connection mode can be set according to the actual situation, which is not limited here.

[0039] Specifically, please refer to Figs. 4 and 5, the cone rod fixing member 120 can have a convex column 122, and the light emitting panel 110 can have a concave hole 112 matched with the convex column 122, and the convex column 122 is detachably embedded in the concave hole 112. In order to further facilitate the disassembly and installation of the cone rod fixing member 120 and the light emitting panel 110, the convex column 122 can be arranged at the edge of the cone rod fixing member 120, and the concave hole 112 can be arranged at the edge of the light emitting panel 110, so that the possibility of damaging the lamp beads 111 on the light emitting panel 110 during the installation of the cone rod fixing member 120 and the light emitting panel 110 can be reduced. It can be understood that in some other embodiments, the convex column 122 can also be arranged on the light emitting panel 110, and the concave hole 112 can also be arranged on the cone rod fixing member 120, and the specific arrangement can be set according to the actual situation.

[0040] In the embodiment, the cone rod fixing member 120 can include a plurality of mounting portions 121, and the mounting portions 121 can be used to mount the cone rods 130. The inside of each mounting portion 121 can form a mounting hole 1211, and the cone rod 130 can be embedded in the mounting hole 1211. The structure of the mounting hole 1211 can be matched with the structure of the cone rod 130, so that the cone rod 130 can be more stable when embedded in the mounting hole 1211.

[0041] Please refer to FIG. 7 and FIG. 8, the forming manner of the mounting portion 121 is not limited in the embodiment, for example, in the embodiment, the mounting portion 121 can be a protruding structure, specifically, the taper stick fixing piece 120 can include a body 123, the body 123 can be a plate-shaped structure, the mounting portion 121 can protrude from the body 123 and extend towards the light-emitting panel 110, the mounting portion 121 can include a first end portion 1212 and a second end portion 1213, the first end portion 1212 is connected to the body 123, and the second end portion 1213 is an end portion pointing to the light-emitting panel 110, the end surface of the second end portion 1213 can abut against the light-emitting panel 110, so that a closed structure is formed between the mounting portion 121 and the light-emitting panel 110, and the plurality of lamp beads 111 on the light-emitting panel 110 can correspond to the plurality of mounting portions 121 on the taper stick fixing piece 120 one by one, when the end surface of the mounting portion 121 abuts against the light-emitting panel 110, the lamp bead 111 can be located in the corresponding mounting hole 1211, so that the light emitted by the lamp bead 111 can be prevented from leaking out. Meanwhile, part of the light emitted by each lamp bead 111 can not enter the taper stick 130, and this part of the light can be repeatedly refracted in the mounting portion 121 and converted into heat, so that the light that does not enter the taper stick 130 can not leak out, but is converted into heat and transferred to the mounting portion 121, specifically, the heat can be accumulated in each mounting portion 121 respectively, and finally dissipated by dissipating heat from the mounting portion 121. In the embodiment, the heat can be directly dissipated from the mounting portion 121 to eliminate the heat, for example, the heat can be carried away by air flow outside the mounting portion 121.

[0042] Further, in an embodiment, the first end portions 1212 of the adjacent mounting portions 121 can be connected to each other, so that the adjacent mounting portions 121 are connected to each other, which is beneficial to improve the structural stability of the entire taper stick fixing piece 120. The cross-sectional area of the first end portion 1212 is greater than the cross-sectional area of the second end portion 1213, so that the mounting portion 121 can perfectly cover the lamp bead 111.

[0043] In addition, since the cross-sectional area of the first end portion 1212 is greater than the cross-sectional area of the second end portion 1213, the second end portions 1213 of the adjacent mounting portions 121 can have a gap 1214, and the gap 1214 can be used for dissipating heat from the mounting portion 121, specifically, since the gap 1214 is arranged between the adjacent mounting portions 121, air flow can flow through the gap 1214, and the air flow flowing through can carry away the heat of the mounting portion 121, so as to dissipate heat from the mounting portion 121.

[0044] It should be noted that in some other embodiments, gaps 1214 can also be provided between the first ends 1212 of the adjacent mounting portions 121, which can improve the heat dissipation effect of the mounting portions 121.

[0045] As described above, in the present embodiment, the lamp beads 111 are arranged in an array on the light-emitting panel 110, and since the mounting portions 121 correspond to the lamp beads 111 one by one, the mounting portions 121 can also be arranged in an array on the body 123 of the cone rod fixing member 120 in the present embodiment, which can further improve the heat dissipation effect of the mounting portions 121.

[0046] The present embodiment does not limit the specific structure of the mounting hole 1211. For example, in one embodiment, please refer to FIGS. 5 and 6, the mounting hole 1211 can include a first mounting hole 1211a and a second mounting hole 1211b in communication, wherein the first mounting hole 1211a is arranged adjacent to the light-emitting panel 110, and the second mounting hole 1211b is arranged away from the light-emitting panel 110. When the second end surface of the mounting portion 121 abuts against the light-emitting panel 110, the lamp bead 111 can be located in the first mounting hole 1211a, and the inner diameter of the second mounting hole 1211b close to the first mounting hole 1211a is smaller than the inner diameter of the first mounting hole 1211a. That is, in the present embodiment, the mounting hole 1211 can be provided as a combined structure of a conical shape and a cylindrical shape, wherein the second mounting hole 1211b is a conical hole, and the first mounting hole 1211a is a cylindrical hole. This can make the structure of the mounting hole 1211 more suitable for the cone rod 130, and also more suitable for the lamp bead 111.

[0047] Please continue to refer to FIGS. 4 and 5. It can be understood that in the present embodiment, the cone rod 130 can include opposite coupling-in ends 131 and coupling-out ends 132, wherein the cross-sectional area of the coupling-in end 131 is smaller than that of the coupling-out end 132. The coupling-in end 131 of each cone rod 130 can be embedded in a mounting hole 1211, specifically in the first mounting hole 1211a, and abut against the lamp bead 111. When the cone rod 130 is embedded in the mounting hole 1211, the coupling-in end 131 of the cone rod 130 corresponds to the position of the first mounting hole 1211a.

[0048] It should be noted that since the cone rod 130 is a generally conical structure, the structure of the cone rod fixing member 120 described above facilitates the cone rod 130 to be more closely fitted with the inner wall of the cone rod fixing member 120, so as to improve the light utilization rate of the light emitting device 10. Specifically, when the cone rod 130 is installed in the mounting portion 121 of the cone rod fixing member 120, since the second mounting hole 1211b is a conical hole, the inner wall of the cone rod fixing member 120 can be in abutment with the outer surface of the cone rod 130. In this way, the interval space between the cone rod 130 and the second mounting hole 1211b can be avoided, so that the light rays of the light cone rod 130 are not scattered in the interval space during the transmission of the light rays, resulting in waste of light. Therefore, the structure of the cone rod 130 and the mounting hole 1211 described above can improve the light utilization rate of the light emitting device 10.

[0049] In summary, since the outer surface of the cone rod 130 is in abutment with the inner wall of the second mounting hole 1211b, and the first mounting hole 1211a has an interval space between the cone rod 130 for facilitating the butt joint of the lamp bead 111, part of the light emitted by the lamp bead 111 will not enter the cone rod 130. This part of the light will repeatedly refract in the first mounting hole 1211a and be converted into heat and accumulated in the first mounting hole 1211a. The heat converted from light can be directly transmitted to the mounting portion 121 by contact heat transfer and finally dissipated. The light emitting device 10 provided by the embodiment of the present application can directly dissipate heat from the mounting portion 111, so as to promote the dissipation of heat generated by the light that does not enter the cone rod 130.

[0050] Further, in an embodiment, the inner diameter of the second mounting hole 1211b gradually increases from the end close to the first mounting hole 1211a to the end away from the first mounting hole 1211a. The purpose of this arrangement is that the mounting portion 121 can be more suitable for the structure of the cone rod 130, thereby facilitating the improvement of the light utilization rate of the light emitting device 10 and the heat transfer efficiency between the cone rod 130 and the cone rod fixing member 120.

[0051] In the embodiment, the light emitting device 10 can further include a dustproof seal 140, which can be arranged on the surface of the light emitting panel 110. The dustproof seal 140 can be provided with a plurality of light transmission holes 141, and the plurality of lamp beads 111 can be correspondingly arranged in the plurality of light transmission holes 141. When the taper rod fixing member 120 is connected with the light emitting panel 110, the end surface of the first end portion 1212 of the mounting portion 121 can abut against the dustproof seal 140, that is, the dustproof seal 140 can be located between the taper rod fixing member 120 and the light emitting panel 110, so as to further seal the connection between the taper rod fixing member 120 and the light emitting panel 110, thereby reducing the probability of light leakage. Meanwhile, the dustproof seal 140 can also prevent dust from entering the first mounting hole 1211a, so as to keep the space in the first mounting hole 1211a clean and avoid the influence of the external environment on the light brightness.

[0052] The specific material of the dustproof seal 140 is not limited in the embodiment, for example, the dustproof seal 140 can be made of silica gel or sponge. When the taper rod fixing member 120 abuts against the light emitting panel 110, the dustproof seal 140 is located between the taper rod fixing member 120 and the light emitting panel 110 and is pressed, so as to play a dustproof sealing role. When the taper rod fixing member 120 is detached from the light emitting panel 110, the dustproof seal 140 can recover the deformation, so as to be repeatedly used in the future and reduce the cost.

[0053] In addition, the light emitting device 10 provided by the embodiment can further include an elastic piece 150, which can be arranged on the taper rod fixing member 120, specifically on the side of the taper rod fixing member 120 away from the light emitting panel 110. The elastic piece 150 can be pressed against the coupling-out end of the taper rod 130, so that the coupling-in end 131 of the taper rod 130 abuts against the lamp bead 111. That is, the arrangement of the elastic piece 150 can make the taper rod 130 and the lamp bead 111 more closely connected, so as to avoid the disconnection of the lamp bead 111 and the taper rod 130. The direct contact between the lamp bead 111 and the taper rod 130 can make the light emitted by the lamp bead 111 better coupled into the taper rod 130, thereby reducing the light not coupled into the taper rod 130, and further improving the utilization rate of the light emitted by the lamp bead 111.

[0054] Further, please refer to Fig. 5 again, in the embodiment, the light emitting device 10 can further include a heat dissipation member 160, the heat dissipation member 160 can be connected to the surface of the light emitting panel 110 far away from the lamp beads 111, it can be understood that in the working process of the light machine 1, the lamp beads 111 will emit light, and in the process, the lamp beads 111 will also generate heat, part of the heat will be transferred to the cone stick 130, and the other part of the heat will be transferred to the light emitting panel 110, the heat dissipation member 160 can be used for dissipating heat of the light emitting panel 110, specifically, the heat dissipation member 160 can be in direct contact with the light emitting panel 110, the light emitting panel 110 can transfer heat to the heat dissipation member 160, so as to achieve the effect of dissipating heat of the heat dissipation member 160 to the light emitting panel 110.

[0055] The embodiment of the present application does not limit the specific structure of the heat dissipation member 160, for example, the heat dissipation member 160 can have a plurality of heat dissipation fins 161, the heat dissipation member 160 can transfer heat to the heat dissipation fins 161, and the external airflow can pass through the heat dissipation fins 161 and take away the heat of the heat dissipation fins 161.

[0056] Further, in the embodiment, the heat dissipation member 160 can be arranged away from the shell 210, so that heat exchange between the heat dissipation member 160 and the shell 210 can be avoided, so as to affect the heat dissipation efficiency of the heat dissipation member 160 and the heat dissipation efficiency of the elements in the shell 210.

[0057] The light emitting device 10 provided by the embodiment of the present application, by setting the cone stick fixing member 120 as a structure including a plurality of mounting portions 121, and each mounting portion 121 has a mounting hole 1211, the mounting hole 1211 can be arranged corresponding to the lamp beads 111 on the light emitting panel 110, the cone stick 130 can be embedded in the mounting hole 1211, the coupling-in end 131 of the cone stick 130 abuts against the lamp beads 111 to transmit the light emitted by the lamp beads 111, since part of the light does not enter the cone stick 130, in the embodiment, the lamp beads 111 are covered in the mounting portion 121, the light not entering the cone stick 130 will be repeatedly refracted in the mounting portion 121 to be converted into heat, therefore, the light not entering the cone stick 130 will not leak out, but will be converted into heat and transferred to the mounting portion 121, and finally dissipated by dissipating heat of the mounting portion 121, so as to eliminate the light not entering the cone stick 130, the light emitting device 10 provided by the embodiment of the present application is applied to the light machine 1, the overall heat dissipation efficiency of the light machine 1 can be improved by dissipating heat of the light emitting device 10 alone, and the overall temperature of the light machine 1 is reduced.

[0058] In this utility model, unless otherwise explicitly specified or limited, the terms "installation," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, or a transmission connection; they can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0059] Furthermore, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as referring to specific or particular structures. The description of "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any at least one embodiment or example. Furthermore, without contradiction, those skilled in the art can combine and integrate different embodiments or examples described in this utility model, as well as the features of different embodiments or examples.

[0060] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A light emitting device, characterized by, The light emitting device comprises: a light emitting panel, a surface of the light emitting panel being provided with a plurality of lamp beads; a cone rod fixing member, the cone rod fixing member comprising a plurality of mounting portions, each of the mounting portions being formed with a mounting hole, an end surface of each of the mounting portions abutting against the light emitting panel, the plurality of lamp beads corresponding to the plurality of mounting portions one by one and being located in the corresponding mounting holes; and a plurality of cone rods, each of the cone rods comprising opposite coupling-in ends and a coupling-out end, a cross-sectional area of the coupling-in end being smaller than that of the coupling-out end, the coupling-in end of each of the cone rods being embedded in one of the mounting holes and abutting against the lamp bead. The light emitting device further comprises a dustproof sealing member, the dustproof sealing member being provided on the surface of the light emitting panel, the dustproof sealing member being provided with a plurality of light transmission holes, the plurality of lamp beads being located in the plurality of light transmission holes one by one, the end surface of the mounting portion abutting against the dustproof sealing member.

2. The light emitting device of claim 1, wherein The mounting hole comprises a first mounting hole and a second mounting hole in communication, the first mounting hole being adjacent to the light emitting panel, the lamp bead being located in the first mounting hole, an inner diameter of the end of the second mounting hole close to the first mounting hole being smaller than that of the first mounting hole.

3. The light emitting device of claim 1, wherein, The inner diameter of the second mounting hole gradually increases from the end close to the first mounting hole to the end away from the first mounting hole.

4. The light emitting device of claim 3, wherein, Each of the mounting portions comprises a first end portion and a second end portion, the first end portions of adjacent mounting portions being connected, the second end portions abutting against the light emitting panel, a cross-sectional area of the first end portion being larger than that of the second end portion, the second end portions of adjacent mounting portions having a gap therebetween.

5. The light emitting device of claim 1, wherein, The cone rod fixing member has a protruding column, the light emitting panel has a recess hole matched with the protruding column, the protruding column being embedded in the recess hole to connect the cone rod fixing member to the light emitting panel.

6. The light emitting device of claim 1, wherein, The light emitting device further comprises a spring sheet, the spring sheet being provided on the cone rod fixing member and pressing against the cone rods so that the coupling-in ends of the cone rods abut against the lamp beads.

7. The light-emitting device according to any one of claims 1 to 6, wherein The light emitting device further comprises a heat dissipation member, the heat dissipation member being connected to the surface of the light emitting panel away from the lamp beads.

8. The light-emitting device according to any one of claims 1 to 6, wherein The light emitting device comprises a main body and at least one light emitting device as claimed in any one of claims 1-8, the main body comprising a housing and a lens, the lens being provided in the housing, the light emitting device being provided outside the housing.

9. An optical engine characterized by, The light emitting device is detachably connected to the housing.

10. The optical engine of claim 9, wherein, ​

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