CN113639249A - Lighting device and vehicle lamp - Google Patents
Lighting device and vehicle lamp Download PDFInfo
- Publication number
- CN113639249A CN113639249A CN202010346316.1A CN202010346316A CN113639249A CN 113639249 A CN113639249 A CN 113639249A CN 202010346316 A CN202010346316 A CN 202010346316A CN 113639249 A CN113639249 A CN 113639249A
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- Prior art keywords
- light
- guide rod
- light guide
- lighting device
- elastic
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/24—Light guides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/30—Semiconductor lasers
Abstract
The invention provides a lighting device and a vehicle lamp, the lighting device includes: the light-emitting device comprises a light-emitting device body, a shell body, a light guide rod and a fixing piece; the shell is provided with a mounting hole and a mounting groove communicated with the mounting hole, the light guide rod penetrates through the mounting hole, one end of the light guide rod is a light inlet surface, the other end of the light guide rod is a light outlet surface, the light inlet surface is opposite to the light emitting device, and light emitted by the light emitting device enters the light guide rod through the light inlet surface and is emitted from the light outlet surface; the mounting is installed in the mounting groove, and the mounting is connected with the elastic component that sets up on the casing, and elastic component takes place elastic deformation so that the mounting is fixed the leaded light stick. The light guide rod has a simple and reliable fixing structure and good stability.
Description
Technical Field
The invention relates to the technical field of illumination, in particular to an illumination device and a vehicle lamp.
Background
Lamps on vehicles are important factors influencing the driving safety of vehicles, and the development of the automobile industry puts higher and higher requirements on the lamps of the vehicles. Tungsten filament lamps are a common light source for automotive lighting and are gradually eliminated due to their low brightness, high energy consumption and short service life. In order to improve the brightness of the light source and reduce the energy consumption, researchers have developed an LED lighting device for filament-like applications, which is used as a lighting source by coupling light emitted from an LED into a rod-shaped light guide element and emitting the light on the surface of the rod-shaped light guide element. The filament-simulated LED lighting device has the same light-emitting characteristic as a tungsten lamp, and has the advantages of high brightness, long service life and the like, so that the filament-simulated LED lighting device can replace the tungsten lamp to be applied to the field of automobile lighting.
The automobile lamp is arranged on an automobile, the using environment is severe, and the automobile lamp is required to have extremely high impact resistance and vibration resistance. Compare with traditional car light sources such as tungsten filament lamp, this simulation filament LED lighting device's luminescent device and leaded light component alternate segregation, and leaded light component is rectangular form, and consequently leaded light component's structural stability is relatively poor, and the vibrations of car make leaded light component and luminescent device's relative position change easily to illumination light distribution to car light produces huge influence.
Disclosure of Invention
The present invention is directed to a lighting device to solve the above problems.
The present invention provides a lighting device, including: the light-emitting device comprises a light-emitting device body, a shell body, a light guide rod and a fixing piece; the shell is provided with a mounting hole and a mounting groove communicated with the mounting hole; the light guide rod penetrates through the mounting hole, one end of the light guide rod is a light inlet surface, the other end of the light guide rod is a light outlet surface, the light inlet surface is opposite to the light emitting device, and light emitted by the light emitting device enters the light guide rod through the light inlet surface and is emitted from the light outlet surface; the mounting is installed in the mounting groove, and the mounting is connected with the elastic component who sets up on the casing, and elastic component takes place elastic deformation so that the fixed leaded light stick of mounting.
In one embodiment, the elastic assembly includes a connecting member fixed in the mounting groove and an elastic member having one end connected to the connecting member or the housing and the other end connected to the fixing member.
In one embodiment, the fixing member is provided with a through hole, a protrusion is arranged in the through hole, the connecting member is a stepped screw, a screw hole matched with the stepped screw is arranged on the bottom surface of the mounting groove, the stepped screw penetrates through the through hole to be connected with the screw hole, the elastic member is sleeved on the stepped screw, one end of the elastic member is connected with a nut or a shell of the stepped screw, and the other end of the elastic member is connected with the protrusion.
In one embodiment, the fixing member is provided with a fixing groove on one side facing the light guide rod, and a groove surface of the fixing groove abuts against the light guide rod.
In one embodiment, the fixing member has a gap between a side surface thereof facing the light guide rod and a bottom surface of the mounting groove.
In one embodiment, the number of the connecting members, the elastic members, the through holes and the screw holes is two, and the two connecting members, the two elastic members, the two through holes and the two screw holes are respectively symmetrical about a plane passing through the axis of the light guide rod.
In one embodiment, the mounting groove is a threaded hole, the connecting piece is a stud, the fixing piece is in a sheet shape, the connecting piece is connected with the mounting groove through threads, and the elastic piece is arranged between the connecting piece and the fixing piece.
In one embodiment, the connecting piece is provided with a guide post extending along the axial direction, an annular groove is formed between the guide post and the side wall of the connecting piece, the elastic piece is a spring, and one end of the elastic piece, which is far away from the fixing piece, is accommodated in the groove.
In one embodiment, the elastic member is an elastic cushion, and the elastic assembly further includes a protection member disposed between the connector and the elastic member.
In one embodiment, the lighting device further comprises a substrate connected to the housing, the light emitting device being arranged on a side of the substrate facing the housing.
In one embodiment, the lighting device further includes a heat dissipation assembly disposed on a side of the substrate facing away from the housing, the heat dissipation assembly includes a heat sink having a plurality of heat dissipation fins arranged in an annular shape, and a fan disposed between the plurality of heat dissipation fins.
The invention further provides a vehicle lamp which comprises the lighting device.
Compared with the prior art, the lighting device provided by the invention has the advantages that the light guide rod is arranged in the mounting hole of the shell, the light guide rod is limited in the radial direction, the fixing piece and the elastic component are arranged in the mounting groove, the mounting groove is communicated with the mounting hole, one part of the side surface of the light guide rod is exposed in the mounting groove, and the fixing piece connected with the elastic component is enabled to tightly press the light guide rod through the elastic deformation of the elastic component fixed on the shell, so that the light guide rod is prevented from sliding along the axial direction, the fixing structure of the light guide rod is simple and reliable, the stability is good, and the processing and the assembly are convenient.
Drawings
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 are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is an exploded view of a lighting device according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a lighting device according to a first embodiment of the present invention;
FIG. 3 is a schematic view of a fixing structure of a light guide rod of an illumination apparatus according to a first embodiment of the present invention;
fig. 4 is a schematic structural view of a step screw of a lighting device according to a first embodiment of the invention;
fig. 5 is a schematic structural diagram of a heat dissipation module of a lighting device according to a first embodiment of the invention;
FIG. 6 is a schematic view of another fixing structure of a light guide rod of an illumination apparatus according to a first embodiment of the present invention;
fig. 7 is a schematic structural diagram of a lighting device according to a second embodiment of the present invention;
FIG. 8 is a schematic view of a fixing structure of a light guide rod of a lighting device according to a second embodiment of the present invention;
fig. 9 is a schematic structural diagram of a lighting device according to a third embodiment of the present invention;
FIG. 10 is a schematic view of a fixing structure of a light guide rod of a lighting device according to a third embodiment of the present invention;
fig. 11 is a schematic structural view of a stud of a lighting device according to a third embodiment of the present invention.
Detailed Description
In order to facilitate an understanding of the embodiments of the present invention, the embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the examples of the present invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The first embodiment is as follows:
referring to fig. 1 and 2, fig. 1 and 2 are schematic structural views of a lighting apparatus 100 according to an embodiment of the present invention, where the lighting apparatus 100 includes a light emitting device 101, a housing 102, a light guiding rod 103, a fixing member 104, and an elastic member 105.
The shell 102 is provided with a mounting hole and a mounting groove 1021 communicated with the mounting hole, the light guide rod 103 penetrates through the mounting hole, one end of the light guide rod 103 is a light incident surface, the other end of the light guide rod 103 is a light emergent surface, the light incident surface is opposite to the light emitting device 101, and light emitted by the light emitting device 101 enters the light guide rod 103 through the light incident surface and is emergent from the light emergent surface; the fixing member 104 is installed in the installation groove 1021, the fixing member 104 is connected with the elastic component 105 disposed on the housing 102, and the elastic component 105 is elastically deformed to fix the light guide rod on the fixing member 104.
Compared with the prior art, according to the lighting device 100 provided by the invention, the light guide rod 103 is arranged in the mounting hole of the shell 102, the light guide rod 103 is limited in the radial direction, the fixing piece 104 and the elastic component 105 are arranged in the mounting groove 1021, because the mounting groove 1021 is communicated with the mounting hole, one part of the side surface of the light guide rod 103 is exposed in the mounting groove 1021, and the fixing piece 104 connected with the elastic component 105 compresses the light guide rod 103 through the elastic deformation of the elastic component 105 fixed on the shell, so that the light guide rod 103 is prevented from sliding along the axial direction, the fixing structure of the light guide rod is simple and reliable, the stability is good, and the processing and the assembly are convenient.
Specifically, in the present embodiment, the light emitting device 101 is used to emit illumination light, and the light emitting device 101 may be a light emitting diode LED or a laser diode LD. The light emitting devices 101 provide the illumination apparatus 100 with raw illumination light, and the number of the light emitting devices 101 may depend on the brightness requirement of the illumination apparatus 100, for example, in a specific embodiment, the illumination apparatus 100 comprises 4 LEDs emitting white light, and the 4 LEDs are arranged in a matrix of 2 × 2.
In the present embodiment, the lighting device 100 further includes a substrate 106, and the light emitting device 101 is disposed on the substrate 106. Since the light-emitting device 101 generates heat during operation and light emission, the substrate 106 is preferably made of a material having good thermal conductivity, such as a copper material or an aluminum material, so that the heat can be discharged in time. Further, the lighting device 100 may further include a ceramic substrate on which the light emitting device 101 is mounted, and the ceramic substrate is mounted on the substrate 106.
The housing 102 may be made of a metal material, such as an aluminum material or an alloy of aluminum, so that the housing 102 has both excellent structural stability and easy processing. The housing 102 is provided with a mounting hole and a mounting groove 1021 communicated with the mounting hole, the mounting hole is used for mounting the light guide rod 103, and the mounting groove 1021 is used for mounting the fixing member 104 and the elastic component 105.
The light guide rod 103 is a rod-shaped or columnar transparent light guide component, and can be made of transparent materials such as transparent acrylic resin, Polycarbonate (PC), polymethyl methacrylate (PMMA), glass or quartz, and the light guide rod 103 has a high refractive index, so that light can be transmitted in a total reflection manner inside the light guide rod 103. The light guide rod 103 penetrates through the mounting hole, one end of the light guide rod 103 is a light incident surface, and the other end of the light guide rod is a light emergent surface. The substrate 106 is connected to the housing 102 to fix the light emitting device 101, and the light incident surface of the light guide rod 103 is opposite to the light emitting device 101, light emitted from the light emitting device 101 is coupled into the light guide rod 103 through the light incident surface of the light guide rod 103, and the light is transmitted inside the light guide rod 103 in a total reflection manner and emitted from the light emitting surface of the light guide rod 103. The light emitting surface of the light guiding rod 103 may be conical, parabolic, wedge-shaped or groove-shaped, so that a predetermined light distribution is realized by emitting light from the light emitting surface of the light guiding rod 103.
In this embodiment, the light emitting surface of the light guiding rod 103 may also be provided with a rough scattering structure, and the white light emitted by the light emitting device 101 is scattered when reaching the scattering structure on the light emitting surface through the conduction of the light guiding rod 103, so as to realize wider light distribution. In other embodiments of the present invention, the light emitting device 101 can also emit light of other colors, for example, in one embodiment, the light emitting device 101 is a blue LD, and a yellow fluorescent material is disposed on the light emitting surface of the light guiding rod 103 for absorbing part of the blue light and emitting yellow light, so that the unabsorbed blue light and the emitted yellow light are mixed into white light emitting light. In another embodiment, the light emitting device 101 is a blue LD, and the light guiding rod 103 is a fluorescent ceramic rod structure formed by mixing and calcining aluminum oxide, phosphor powder and sintering aid. The blue light emitted from the light emitting device 101 enters the light guide rod 103 of the fluorescent ceramic, part of the blue light is absorbed and emits yellow light, and the unabsorbed blue light and the emitted yellow light are mixed into white light and emitted from the light emitting surface of the light guide rod 103. The light guide bar 103 of the fluorescent ceramic has high thermal conductivity and high light emitting efficiency, and preferably, the light emitting surface of the light guide bar 103 of the fluorescent ceramic has a rough scattering structure, so that wider light distribution is realized.
Referring to fig. 2 and fig. 3, fig. 3 is a schematic view of a fixing structure of a light guide rod 103 of an illumination apparatus 100 according to an embodiment of the invention. The mounting groove 1021 on the shell 102 is communicated with the mounting hole, the light guide rod 103 is arranged in the mounting hole in a penetrating way, so that a part of the side surface of the light guide rod 103 is exposed in the mounting groove 1021, the fixing piece 104 and the elastic component 105 are mounted in the mounting groove 1021, the fixing piece 104 is made of rigid metal materials, such as steel, aluminum or metal alloy, and the rigid fixing piece 104 can avoid damaging the total reflection of light rays in the light guide rod 103 and reduce light loss because the fixing piece 104 is directly contacted with the light guide rod 103; the elastic component 105 comprises a connecting piece 1051 and an elastic piece 1052, wherein the connecting piece 1051 is fixed in the mounting groove 1021, one end of the elastic piece 1052 is connected with the connecting piece 1051 or the shell 102, the other end is connected with the fixing piece 104, when the fixing piece 104 fastens the light guide rod 103, the elastic piece 1052 is elastically deformed, and the generated elastic force acts on the fixing piece 104, so that the fixing piece compresses the light guide rod to prevent the light guide rod from sliding along the axial direction.
Specifically, in the present embodiment, the diameter of the light guide rod 103 is matched with the diameter of the mounting hole, that is, the diameter of the mounting hole needs to be slightly larger than the diameter of the light guide rod 103, so that the light guide rod 103 can be mounted in the mounting hole and radially limited. The mounting groove 1021 comprises a bottom surface and two side surfaces connected to two sides of the bottom surface respectively, the bottom surface and the two side surfaces of the mounting groove 1021 are planar, and the bottom surface passes through the mounting hole, so that the mounting groove 1021 is communicated with the mounting hole. In an embodiment of the present invention, the bottom surface of the mounting groove 1021 passes through the axis of the mounting hole, and both side surfaces of the mounting groove 1021 are perpendicular to the axis of the mounting hole. The fixing member 104 has a substantially block shape, and the size and shape of the block shape are matched with those of the mounting groove 1021, so that the fixing member 104 can be accommodated in the mounting groove 1021, and preferably, the outer surface of the fixing member 104 and the outer surface of the housing 1021 have the same curvature.
The connecting member 1051 is a stepped screw, and as shown in fig. 4, the stepped screw 1051 includes a nut 1051a, a screw portion 1051b, and a screw portion 1051c, the diameter of the nut 1051a is larger than the diameter of the screw portion 1051b, the diameter of the screw portion 1051c is smaller than the diameter of the screw portion 1051b, an outer side surface of the screw portion 1051c is provided with an external thread, and a bottom surface of the mounting groove 1021 is provided with a screw hole 1022 engaged with the screw portion 1051 c. The elastic member 1052 can be a spring, which can be sleeved on the screw part 1051b of the stepped screw 1051, and the spring can bear a higher temperature and humidity range; in other embodiments, the elastic element 1052 may also be a cylindrical elastic ring made of elastic material such as elastic rubber, elastic silicone, etc., and the elastic ring may be sleeved on the screw portion 1051b of the stepped screw 1051. In this embodiment, the elastic member 1052 is used as a spring.
The fixing member 104 is provided with a through hole 1041, the through hole 1041 is internally provided with an annular bulge 1043a, the bulge 1043a is arranged close to the outer surface of the fixing member 104, so that the through hole 1041 is divided into a first section and a second section, the first section is close to the outer surface of the fixing member 104, the bottom surface of the second section of the mounting groove 1021 is provided, the hole diameter formed by the bulge 1043a is smaller than the diameter of the nut 1051a and larger than the diameter of the screw portion 1051b, when the stepped screw 1051 passes through the through hole 10, the screw portion 1051b and the screw portion 1051c of the stepped screw 1051 can pass through the hole formed by the bulge 1043a, and the nut 1051a is accommodated in the first section of the through hole 1041 and clamped on the bulge 1043 a. The elastic member 1052 is sleeved on the screw portion 1051b of the stepped screw 1051, and the elastic member 1052 is accommodated in the first section of the through hole 1041. With the threaded portion 1051c of the stepped screw 1051 being in threaded connection with the threaded hole 1022 at the bottom surface of the mounting groove 1021, one section of the elastic member 1052 is connected to the housing 102, the other end of the elastic member 1052 is connected to the protrusion 1043a on the fixing member 104, and the elastic member 1052 is elastically deformed, and the elastic force generated by the elastic member 1052 acts on the fixing member 104, and due to the reverse abutment of the nut 1051a against the fixing member 104, the fixing member 104 compresses the light guide rod 103, thereby achieving the axial fixation of the light guide rod 103 and preventing the light guide rod 103 from sliding in the axial direction.
In this embodiment, the number of the connecting members 1051, the elastic members 1052, the through holes 1041 and the screw holes 1022 on the bottom surfaces of the mounting grooves 1021 is two, and the screw holes 1022 on the bottom surfaces of the two connecting members 1051, the two elastic members 1052, the two through holes 1041 and the two mounting grooves 1021 are respectively symmetrical with respect to a plane passing through the axis of the light guide rod 103. Through the symmetrical arrangement, the two sides of the axis of the light guide rod 103 are stressed in a balanced manner, so that the stability of the structure is improved.
Further, in order to make the elastic member 1052 have a sufficient length and provide a sufficient elastic force, the screw hole 1022 on the bottom surface of the mounting groove 1021 is stepped, the screw hole 1022 includes a receiving section and a threaded section, wherein the diameter of the receiving section is greater than that of the threaded section, and the inner side surface of the threaded section is provided with an internal thread matching with the threaded section 1051c of the stepped screw 1051, and the two are in threaded connection; the accommodating section is used for accommodating the elastic element 1052, the elastic element 1052 can be connected to the stepped surface between the accommodating section and the thread section, and thus the length of the elastic element 1052 can be lengthened, so that sufficient elastic force is provided, and the fixing member 104 can firmly fix the light guide rod 103.
In this embodiment, a gap is formed between the side surface of the fixing member 104 facing the light guide rod 103 and the bottom surface of the mounting groove 1021, and the gap between the two may be 0.01mm-2 mm. Through setting up the clearance between the bottom surface at mounting 104 and mounting groove 1021, can guarantee on the one hand that elastic component 1052 can take place elastic deformation, on the other hand provides a buffering space for mounting 104, and mounting 104 causes the damage to light guide rod 103 when avoiding lighting device 100 to take place vibrations.
Further, a fixing groove 1042 is provided on one side of the fixing member 104 facing the light guide rod 103, and a groove surface of the fixing groove 1042 abuts against the light guide rod 103 to limit the light guide rod 103. The fixing groove 1042 may have other shapes such as a rectangle, a triangle, or an arc.
Referring to fig. 1 and 5, the lighting apparatus 100 further includes a heat dissipation assembly 107 disposed on a side of the substrate 106 away from the housing 102, the heat dissipation assembly 107 includes a heat sink and a fan 1072, the heat sink has a plurality of heat dissipation fins 1071 annularly disposed, the fan 1072 is disposed among the plurality of heat dissipation fins 1071, that is, the fan 1072 is surrounded by the plurality of heat dissipation fins 1071. Heat generated by the light emitting device 101 is transferred to the plurality of heat radiation fins 1071 of the heat sink via the substrate 106, and the fan 1072 blows air flow to radiate the heat. The heat dissipation assembly 107 has a compact structure, a small volume and an excellent heat dissipation effect.
Referring to fig. 6, fig. 6 is a schematic view of another fixing structure of a light guiding rod of an illumination device according to an embodiment of the invention. Unlike the above-described light guide rod 103 fixing structure, in the through hole 1041 of the fixing member 104, the protrusion 1043b is disposed near the fixing member 104 on the side facing the light guide rod 103, so that the elastic member 1052 is located between the nut 1051a and the protrusion 1043b of the stepped screw 1051. Preferably, the boss 1043b is disposed at an end inside the through hole 1041. Specifically, boss 1043b is formed with a larger hole diameter than the diameter of screw portion 1051b so that screw portion 1051b and threaded portion 1051c can pass through the hole formed by boss 1043 b. Sleeving the elastic piece 1052 on the screw part 1051b of the stepped screw 1051, and enabling the thread part 1051c of the stepped screw 1051 to pass through the through hole 1041 and be in threaded connection with the screw hole 1022 at the bottom surface of the mounting groove 1021, so that the stepped screw 1051 is fixed on the shell 102; at this time, the elastic member 1052 is accommodated in the through hole 1041, one end of the elastic member 1052 is connected to the nut 1051a of the stepped screw 1051, and the other end is connected to the protrusion 1043b, and since the elastic member 1052 is elastically deformed, the elastic force generated by the elastic member 1052 acts on the fixing member 104, so that the fixing member 104 compresses the light guide rod 103, thereby fixing the light guide rod 103 in the axial direction and preventing the light guide rod 103 from sliding in the axial direction.
Example two:
referring to fig. 7 and 8, fig. 7 is a schematic structural view of a lighting device 200 according to a second embodiment of the present invention, and fig. 8 is a schematic structural view of a fixing structure of a light guiding rod 103 of the lighting device 200 according to the second embodiment of the present invention. In this embodiment, the same components as those in the first embodiment are denoted by the same reference numerals. The difference between this embodiment and the first embodiment is that the mounting groove 2021 on the housing 202 is a threaded hole, the fixing element 204 is a sheet, and is made of a rigid metal material and can be placed in the mounting groove 2021, the connecting element 2051 is a stud matched with the mounting groove 2021, the connecting element 2051 is in threaded connection with the mounting groove 2021, so that the connecting element 2051 is fixed on the housing 202, the elastic element 2052 is disposed between the connecting element 2051 and the fixing element 204, and the elastic element 2052 can be a spring or an elastic rubber pad. Along with the rotation of connecting piece 2051 is fixed, elastic deformation takes place for elastic component 2052, and the elastic force that elastic component 2052 produced is used for on the mounting 204 for mounting 204 compresses tightly light guide rod 103, thereby realizes the ascending fixed of light guide rod 103 axial, prevents that light guide rod 103 from following axial slip.
In this embodiment, the number of the mounting grooves 2021 on the housing 202 may be two or more, the two or more mounting grooves 2021 are arranged along the axial direction of the light guiding rod 103, and each mounting groove 2021 is provided with a connecting member 2051, an elastic member 2052, and a fixing member 204.
Further, when the elastic member 2052 is an elastic cushion, a protection member 2053 is further disposed between the connection member 2051 and the elastic member 2052, and the protection member 2053 is made of a rigid metal material, such as steel, aluminum, or a metal alloy. By providing the protector 2053 between the connector 2051 and the elastic member 2052, the connector 2051 can be prevented from breaking the elastic member 2052 when rotated.
Example three:
referring to fig. 9 and 10, fig. 9 is a schematic structural view of an illumination device 300 according to a third embodiment of the present invention, and fig. 10 is a schematic structural view of a fixing structure of a light guide rod 103 of the illumination device 300 according to a second embodiment of the present invention. In this embodiment, the same components as those in the first embodiment are denoted by the same reference numerals. The difference between this embodiment and the first embodiment is that the mounting groove 3021 on the housing 302 is a threaded hole, the fixing element 304 is a sheet-shaped element made of a rigid metal material and can be placed in the threaded hole, the connecting element 3051 is a stud matched with the threaded hole, the connecting element 3051 is screwed into the mounting groove 3021, so that the connecting element 3051 is fixed on the housing 302, and the elastic element 3052 is a spring and is disposed between the connecting element 3051 and the fixing element 304. Along with the rotatory fixed of connecting piece 3051, elastic deformation takes place for elastic component 3052, and the elastic force that elastic component 3052 produced is used for on the mounting 304 for mounting 304 compresses tightly light guide rod 103, thereby realizes the ascending fixed of light guide rod 103 axial, prevents that light guide rod 103 from following axial slip.
With continued reference to fig. 10 and 11, a side wall 3051a of the connecting member 3051 is provided with a screw thread engaged with the mounting groove 3021, a side of the connecting member 3051 facing the light guiding rod 103 is provided with a guide post 3051b extending axially along the connecting member 3051, an annular groove 3051c is formed between the side wall 3051a of the connecting member 3051 and the guide post 3051b, and an end of the elastic member 3052 away from the fixing member 304 is received in the groove 3051 c. By accommodating one end of the elastic member 3052 far from the fixing member 304 in the groove 3051c and guiding the elastic member 3052 by the guide post 3051b, the elastic member 3052 is prevented from being deviated when the connecting member 3051 rotates, so that the elastic member 3052 uniformly acts on the fixing member 304 for elastic force, and is then uniformly applied to the light guide rod 103.
In this embodiment, the number of the mounting grooves 3021 on the housing 302 may be two or more, the two or more mounting grooves 3021 are arranged along the axial direction of the light guide rod 103, and each mounting groove 2021 is provided with a connecting member 2051, an elastic member 2052, and a fixing member 204.
The invention also provides a vehicle lamp which comprises the lighting devices in the embodiment. The lighting device can simulate the light type distribution of the traditional car light source, can be directly installed in a car lamp, and has the advantages of high brightness, long service life and the like.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. An illumination device, comprising:
a light emitting device;
the shell is provided with a mounting hole and a mounting groove communicated with the mounting hole;
the light guide rod penetrates through the mounting hole, one end of the light guide rod is a light inlet surface, the other end of the light guide rod is a light outlet surface, the light inlet surface is opposite to the light emitting device, and light emitted by the light emitting device enters the light guide rod through the light inlet surface and is emitted from the light outlet surface;
the fixing piece is installed in the installation groove, the fixing piece is connected with the elastic component arranged on the shell, and the elastic component is elastically deformed to enable the fixing piece to fix the light guide rod.
2. A lighting device as recited in claim 1, wherein said elastic member comprises a connecting member and an elastic member, said connecting member being fixed in said mounting groove, one end of said elastic member being connected to said connecting member or said housing, and the other end of said elastic member being connected to said fixing member.
3. The lighting device according to claim 2, wherein the fixing member is provided with a through hole, a protrusion is provided in the through hole, the connecting member is a step screw, a screw hole matched with the step screw is provided on a bottom surface of the mounting groove, the step screw passes through the through hole and is connected with the screw hole, the elastic member is sleeved on the step screw, one end of the elastic member is connected with a nut of the step screw or the housing, and the other end of the elastic member is connected with the protrusion.
4. A lighting device as recited in claim 3, wherein a side of said fixing member facing said light guide rod is provided with a fixing groove, and a groove surface of said fixing groove abuts against said light guide rod.
5. A lighting device as recited in claim 3, wherein said fixing member has a gap between a side surface thereof facing said light guide rod and a bottom surface of said mounting groove.
6. A lighting device as recited in claim 3, wherein the number of said connecting members, said elastic members, said through holes and said screw holes is two, and two of said connecting members, two of said elastic members, two of said through holes and two of said screw holes are respectively symmetrical with respect to a plane passing through an axis of said light guide rod.
7. The lighting device as claimed in claim 2, wherein the mounting groove is a threaded hole, the connecting member is a stud, the fixing member is a plate, the connecting member is threadedly coupled to the mounting groove, and the elastic member is disposed between the connecting member and the fixing member.
8. A lighting device as claimed in claim 7, wherein said connecting member has a guide post extending in an axial direction, an annular recess is formed between said guide post and a side wall of said connecting member, said resilient member is a spring, and an end of said resilient member remote from said fixing member is received in said recess.
9. A lighting device as recited in claim 7, wherein said resilient element is an elastomeric pad, and said resilient assembly further comprises a protective element disposed between said connector and said resilient element.
10. A lighting device as recited in any one of claims 1-9, further comprising a substrate coupled to said housing, said light emitting element being disposed on a side of said substrate facing said housing.
11. A lighting device as recited in claim 10, further comprising a heat sink assembly disposed on a side of said substrate facing away from said housing, said heat sink assembly comprising a heat sink having a plurality of annularly disposed heat fins and a fan disposed between said plurality of heat fins.
12. A vehicle light, characterized in that it comprises a lighting device according to any one of claims 1-11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010346316.1A CN113639249A (en) | 2020-04-27 | 2020-04-27 | Lighting device and vehicle lamp |
| PCT/CN2020/106983 WO2021217945A1 (en) | 2020-04-27 | 2020-08-05 | Lighting device and vehicle lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010346316.1A CN113639249A (en) | 2020-04-27 | 2020-04-27 | Lighting device and vehicle lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113639249A true CN113639249A (en) | 2021-11-12 |
Family
ID=78331721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010346316.1A Pending CN113639249A (en) | 2020-04-27 | 2020-04-27 | Lighting device and vehicle lamp |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113639249A (en) |
| WO (1) | WO2021217945A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10347053A1 (en) * | 2003-10-07 | 2005-05-04 | Hella Kgaa Hueck & Co | Interior light for vehicles |
| DK178386B1 (en) * | 2013-11-21 | 2016-01-25 | Martin Professional Aps | Illumination system comprising an optical light mixing rod |
| CN104110653B (en) * | 2014-05-23 | 2017-01-18 | 上海小糸车灯有限公司 | Light conducting device for vehicle lamp and vehicle lamp |
| CN204880001U (en) * | 2015-09-14 | 2015-12-16 | 芜湖安瑞光电有限公司 | Income light terminal surface mounting structure of car leaded light strip |
| FR3062487B1 (en) * | 2017-01-31 | 2019-04-05 | Valeo Vision | DEVICE FOR FIXING A LIGHT GUIDE ON AN IRREVERSIBLE EMBEDDING BRACKET |
| CN209340975U (en) * | 2018-12-10 | 2019-09-03 | 宁波福尔达智能科技有限公司 | Automobile-used atmosphere lamp |
-
2020
- 2020-04-27 CN CN202010346316.1A patent/CN113639249A/en active Pending
- 2020-08-05 WO PCT/CN2020/106983 patent/WO2021217945A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021217945A1 (en) | 2021-11-04 |
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