Light-emitting and light-guiding structure, vehicle lamp and vehicle

Abstract

The light-emitting and light-guiding structure comprises a support, an inner lens, a lamp panel, a light guide and a decorating part, a bending part is formed at the top end of the support, the inner lens is bent to form an installation part and a light-transmitting part, the light-transmitting part is arranged close to the support, a plurality of light-guiding round holes are formed in the side, facing the support, of the light-transmitting part, and the light-guiding round holes are arranged in the light-guiding round holes. The side, away from the support, of the light-transmitting part is a light-transmitting The lamp panel is arranged on one side of the support, and lamp beads are arranged on the lamp panel; the light guide is located in the containing groove and partially exposed out of the containing groove, and the part, exposed out of the containing groove, of the light guide corresponds to the light-transmitting part; the decorating part is used for being fixed to the mounting part and shielding the mounting part, light emitted by the lamp beads enters the light guide, the light guide transmits the light to the light-transmitting part, and the light entering the light-transmitting part is refracted by the light guide round hole and is emitted from the light-transmitting side. The light-emitting and light-guiding structure provided by the utility model has the advantages that the production cost is reduced, and the uniformity and the aesthetic property of light rays are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle lighting technical field, especially light emitting light guide structure, car lamp and vehicle. BACKGROUND

[0002] As an important part of vehicle, the function of car lamp is not only limited to lighting, but also includes signal indication. The traditional car lamp is usually composed of light guide assembly and light source, and both of them work together to realize the predetermined light distribution, so as to complete the lighting or signal indication function. In order to improve the light emitting uniformity of car lamp, many car lamps use multiple LED lamps as light emitting source. Although this method can achieve good light emitting uniformity, it also leads to the increase of the cost of car lamp. In order to reduce the production cost, many car lamps begin to use light guide design structure to reduce the number of LED lamps. However, the light guide itself is easy to be seen, which not only affects the overall aesthetic appearance of the car lamp, but also destroys the uniform distribution of light, resulting in poor light emitting uniformity. In view of the above problems, the prior art needs to be improved. SUMMARY

[0003] The main purpose of the utility model is to provide a light emitting light guide structure, car lamp and vehicle, which has the advantages of reducing production cost and improving light uniformity and aesthetic appearance.

[0004] In order to achieve the above purpose, the light emitting light guide structure provided by the utility model comprises:

[0005] The top end of the support forms a bending part, and the bending part has a containing groove;

[0006] The inner lens is bent and forms a mounting part and a light transmission part, the light transmission part is arranged close to the support, a plurality of light guide round holes are arranged on one side of the light transmission part facing the support, the plurality of light guide round holes are arranged at intervals along the extension direction of the light transmission part, and the side of the light transmission part away from the support is a light transmission side;

[0007] The lamp plate is arranged on one side of the support, and lamp beads are arranged on the lamp plate;

[0008] The light guide is located in the containing groove and partially exposed to the containing groove, one end of the light guide corresponds to the lamp beads, and the part of the light guide exposed to the containing groove corresponds to the light transmission part;

[0009] The decorative part is used for fixing and shielding the mounting part, the light emitted by the lamp beads enters the light guide, the light guide conducts the light to the light transmission part, and the light entering the light transmission part is emitted from the light transmission side through the refraction of the light guide round hole.

[0010] In one embodiment, the mounting portion is inclined upward in a direction away from the light-transmitting portion, one end of the decorative member is located between the mounting portion and the light-transmitting portion, and the other end of the decorative member extends towards the end away from the light-transmitting portion and is inclined upward.

[0011] In one embodiment, the end of the decorative element away from the light-transmitting portion blocks the mounting portion.

[0012] In one embodiment, the angle between the mounting portion and the decorative element and the horizontal plane is 7° to 10°.

[0013] In one embodiment, the top end of the light guide has a groove extending along its extension direction, and light guide teeth are formed on both sides of the groove.

[0014] In one embodiment, the receiving groove is arc-shaped, and the light guide is cylindrical.

[0015] In one embodiment, the plurality of light guide circles are evenly spaced apart.

[0016] In one embodiment, the lamp bead is an LED lamp.

[0017] In addition, this utility model also discloses a vehicle lamp, which uses the above-mentioned light-emitting light guide structure.

[0018] In addition, this utility model also discloses a vehicle that uses the aforementioned headlights.

[0019] In the technical solution of this utility model, through the synergistic effect of the bracket, inner lens, lamp board, light guide and decorative parts, the number of LED lights is reduced while the light guide hole is used to achieve uniform light refraction. The internal structure is also covered by the decorative parts, which has the advantages of reducing production costs and improving the uniformity and aesthetics of light. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of an embodiment of the light-emitting and light-guiding structure provided by this utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the exploded structure;

[0023] Figure 3 A structure schematic view of an embodiment of the inner lens and the light guide provided by the utility model;

[0024] Figure 4 A sectional structure schematic view of the light emitting and light guiding structure provided by the utility model.

[0025] Explanation of the reference signs:

[0026] 100, light emitting and light guiding structure; 1, support; 2, inner lens; 3, lamp plate; 4, light guide; 5, decoration piece; 11, bending part; 111, accommodating groove; 21, mounting part; 22, light transmission part; 221, light guiding round hole; 222, light transmission side; 31, lamp bead; 41, groove; 42, light guiding tooth.

[0027] The implementation, functional features and advantages of the utility model will be further described with reference to the accompanying drawings in combination with the embodiments. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without making creative efforts belong to the protection scope of the utility model.

[0029] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0030] In addition, if the embodiments of the utility model involve the description of "first", "second", etc., the description of "first", "second", etc. is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing in the whole text means that the three parallel schemes are included, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that the ordinary skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0031] In the prior art, vehicle lamps generally use multiple LED lamps as light sources to improve light uniformity, but this significantly increases production costs. Some vehicle lamps attempt to reduce the number of LEDs through a light guide structure, but the light guide is exposed, resulting in an unattractive appearance, and light is prone to uneven distribution during transmission. In the design of compact vehicle headlamps, both small size and uniform light efficiency are required, and existing light guide structures are difficult to balance concealment and optical performance.

[0032] In an embodiment, referring to Figures 1 to 4 , the light-emitting light guide structure 100 includes a bracket 1, an inner lens 2, a lamp panel 3, a light guide 4, and a decorative piece 5. The top end of the bracket 1 forms a bent portion 11 with a receiving groove 111. The inner lens 2 is bent and forms a mounting portion 21 and a light-transmitting portion 22. The light-transmitting portion 22 is disposed close to the bracket 1, and a plurality of light guide round holes 221 are formed on the side of the light-transmitting portion 22 facing the bracket 1. The plurality of light guide round holes 221 are spaced apart along the extension direction of the light-transmitting portion 22, and the side of the light-transmitting portion 22 facing away from the bracket 1 is a light-transmitting side 222. The lamp panel 3 is disposed on one side of the bracket 1, and lamp beads 31 are disposed on the lamp panel 3. The light guide 4 is located in the receiving groove 111 and partially exposed to the receiving groove 111. One end of the light guide 4 corresponds to the lamp beads 31, and the part of the light guide 4 exposed to the receiving groove 111 corresponds to the light-transmitting portion 22. The decorative piece 5 is used to fix and shield the mounting portion 21. The light emitted by the lamp beads 31 enters the light guide 4, which transmits the light to the light-transmitting portion 22. The light entering the light-transmitting portion 22 is refracted through the light guide round holes 221 and emitted from the light-transmitting side 222.

[0033] Among them, Figure 4 The direction of the arrow in the figure is the light transmission direction. The receiving groove 111 refers to the recessed space formed by the bent portion 11 of the bracket 1, which can be integrally manufactured by injection molding process, and is used to wrap the main part of the light guide 4, with only the light guide segment corresponding to the light-transmitting portion 22 exposed. The light guide round hole 221 refers to an array of circular through holes formed on the surface of the light-transmitting portion 22, which can be formed by laser engraving or mold forming, and uniform diffusion is achieved by changing the light refraction angle. The decorative piece 5 refers to a shielding component covering the mounting portion 21, which can be a metal electroplated piece or a plastic painted piece, and is fixed by buckling or gluing. The exposed part of the light guide 4 refers to the cylindrical light guide body that exceeds the receiving groove 111, which can be made of polymethyl methacrylate material, and the end part maintains a predetermined distance from the lamp beads 31 to receive light.

[0034] Specifically, the light emitted by the lamp beads 31 is vertically incident into the end of the light guide 4, and is conducted by total reflection inside the light guide 4 to the exposed section. When the light reaches the area of the light-transmitting part 22, part of the light is refracted by the light-guiding circular hole 221, changes the propagation direction, and is uniformly emitted from the light-transmitting side 222. The light not refracted by the light-guiding circular hole 221 continues to be conducted inside the light guide 4 until it is extracted by the subsequent light-guiding circular hole 221. The decorative part 5 completely covers the mounting part 21 of the inner lens 2, eliminating the visual exposure of the structural joint. The arc-shaped accommodating groove 111 of the bending part 11 of the bracket 1 closely matches the cylindrical light guide 4, ensuring the continuity of the light conduction path.

[0035] Compared with the prior art, the traditional light guide 4 structure is directly exposed on the surface of the vehicle lamp, which is easy to produce dazzling light spots. The scheme wraps the light guide 4 body with the accommodating groove 111, and the decorative part 5 shields the mounting structure, so that the visible area only retains the functional exposed section of the light-transmitting part 22 and the light guide 4.

[0036] Through the above technical scheme, the present application effectively hides the non-functional part of the light guide 4 under the premise of maintaining the light guide 4 structure and reducing the number of LEDs, and eliminates the visual sense of strangeness. The multi-stage refraction effect of the light-guiding circular hole 221 converts the linear light distribution into a uniform area light source, overcoming the problem of brightness decay at the end of the traditional light guide 4. The cooperative design of the decorative part 5 and the light-transmitting part 22 improves the integrity and aesthetics of the appearance of the vehicle lamp while ensuring the function.

[0037] The present application further proposes that the mounting part 21 is upwardly inclined in a direction away from the light-transmitting part 22, one end of the decorative part 5 is located between the mounting part 21 and the light-transmitting part 22, and the other end of the decorative part 5 extends away from the one end of the light-transmitting part 22 and is upwardly inclined.

[0038] The upward inclination of the mounting part 21 means that the mounting part 21 forms a non-parallel angle with the light-transmitting part 22, which can be achieved by using an injection molding process to form an inclination angle of 7° to 10° for the mounting part 21 of the inner lens 2. This structure provides a mounting reference for the decorative part 5 and forms an initial space for shielding the light guide 4. The one end of the decorative part 5 embedded between the mounting part 21 and the light-transmitting part 22 means that the front end of the decorative part 5 is inserted into the junction between the mounting part 21 and the light-transmitting part 22 of the inner lens 2, which can be fixed by clamping or bonding, and is used to directly cover the connection area of the light guide 4 and the bracket 1. The other end of the decorative part 5 extends upwardly at an angle of 7° to 10°, which can be designed with the same or similar inclination angle as the mounting part 21, forming a continuous curved surface to shield the internal structure.

[0039] Specifically, the inclined design of the mounting portion 21 causes the inner lens 2 and the decorative piece 5 to form a staggered layout, limits the external observation angle through the inclination angle, and avoids exposure of the light guide 4. When the front end of the decorative piece 5 is embedded between the mounting portion 21 and the light-transmitting portion 22, the edge thereof completely covers the assembly gap between the light guide 4 and the bracket 1, eliminating the light leakage point. After the rear end of the decorative piece 5 extends upwardly and obliquely, a continuous curved surface is formed between the rear end and the inclination angle of the mounting portion 21, which, while shielding the light guide 4, reduces the contact of the light with the decorative piece 5 when the light is emitted from the light-transmitting portion 22, thereby avoiding light scattering caused by surface reflection. Thus, the light guide 4 structure is completely hidden in the closed space formed by the mounting portion 21 and the decorative piece 5, and the light is only refracted in a directional manner through the light guide circular hole 221, thereby ensuring the uniformity of light emission.

[0040] Compared with the prior art, the decorative piece 5 and the light-transmitting portion 22 are flush-mounted in the conventional vehicle lamp, causing the side wall of the light guide 4 to be directly exposed to the external observation angle, and the light propagation path is easily disturbed by the shielding piece. The present scheme cooperatively designs the inclined mounting portion 21 and the extended decorative piece 5 to construct a three-dimensional shielding structure covering the light guide 4, thereby realizing better light uniformity and concealment under the same number of LEDs.

[0041] Through the above technical scheme, the present application effectively solves the appearance defects of the vehicle lamp caused by exposure of the light guide 4, and eliminates the scattering interference caused by the structural gap during light propagation, so that the vehicle lamp can still maintain uniform light distribution while reducing the number of LEDs used.

[0042] The present application further proposes that one end of the decorative piece 5 away from the light-transmitting portion 22 shields the mounting portion 21.

[0043] The decorative piece 5 refers to a ring-shaped or strip-shaped structure for covering the edge of the mounting portion 21, which can be implemented by using a plastic or metal material through injection molding, and is fixed to the inner lens 2 through buckling or bonding, with one end thereof away from the light-transmitting portion 22 extending to the outside of the edge of the mounting portion 21 to shield the connecting structure between the mounting portion 21 and the decorative piece 5. The mounting portion 21 refers to a bent region of the inner lens 2 for fixing the decorative piece 5, which can be implemented by forming a connecting structure with a clamping groove or a screw hole through an injection molding process, and the upwardly inclined layout thereof provides a mounting space for the decorative piece 5. Shielding refers to the end of the decorative piece 5 completely covering the assembly interface exposed by the mounting portion 21, which can be implemented by extending the axial length of the decorative piece 5 or adjusting the bending angle thereof, so that the fixing structure of the mounting portion 21 is hidden inside the decorative piece 5.

[0044] Specifically, the decorative piece 5 is fixed on the mounting portion 21 by clamping or screwing, and the layout of the mounting portion 21 inclined upward makes the decorative piece 5 extend in the inclined direction after installation, and the end of the decorative piece 5 away from the light-transmitting portion 22 further extends to the outer edge of the mounting portion 21, covering the connection area of the mounting portion 21 and the bracket 1 or the lamp housing. The fixing structure such as the clamping groove or screw hole of the mounting portion 21 is completely wrapped by the decorative piece 5, and a smooth transition is formed between the end of the decorative piece 5 and the light-transmitting portion 22, avoiding the exposure of the mechanical interface or assembly gap of the mounting portion 21. After the lamp is assembled, the decorative piece 5 and the light-transmitting portion 22 together form a continuous surface, only showing the overall appearance of the decorative piece 5 and the light-transmitting portion 22.

[0045] Compared with the prior art, the existing decorative piece 5 usually only covers a local area of the mounting portion 21, resulting in the exposure of the fixing structure or assembly gap of the mounting portion 21, which affects the appearance integrity of the lamp. However, the present scheme adjusts the extension length and installation angle of the decorative piece 5, so that the end of the decorative piece 5 completely covers the exposed area of the mounting portion 21, eliminating the visual split problem caused by the exposure of the connection between the mounting portion 21 and the decorative piece 5.

[0046] Through the above technical scheme, the present application solves the problem of unattractive appearance of the lamp caused by the exposure of the connection between the decorative piece 5 and the mounting portion 21, makes the surface of the lamp present a continuous and smooth visual effect, improves the overall appearance, and at the same time ensures the reliability of the fixing structure of the mounting portion 21.

[0047] The present application further proposes that the included angle between the mounting portion 21 and the horizontal plane and the included angle between the decorative piece 5 and the horizontal plane are both 7°-10°.

[0048] Among them, the mounting portion 21 refers to a structural component for fixing the inner lens 2 and forming a light-transmitting portion 22 installation reference surface, which can be realized by a plastic substrate formed by injection molding, and its inclination angle directly affects the relative position relationship between the light-transmitting portion 22 and the light guide 4 assembly. The decorative piece 5 refers to a housing component covering the outside of the mounting portion 21, which can be realized by a metal sheet with surface plating, and its inclination angle is adjusted synchronously with the mounting portion 21 to form a continuous shielding surface.

[0049] Specifically, by setting the mounting portion 21 and the decorative piece 5 to the same inclination angle range, the extension path of the decorative piece 5 forms a parallel relationship with the inclination direction of the mounting portion 21. When the angle is controlled between 7° and 10°, the length of the decorative piece 5 is sufficient to cover the connection area between the mounting portion 21 and the light-transmitting portion 22, avoiding the exposure of the internal structure, and at the same time avoiding the generation of too large gap between the end of the decorative piece 5 and the light-transmitting portion 22. When the light transmitted by the light guide 4 is refracted in the light-transmitting portion 22 through the light guide circular hole 221, due to the coordinated matching of the inclination angles of the mounting portion 21 and the decorative piece 5, the projection area boundary formed by the light on the light-transmitting side 222 is clearer, thereby eliminating the light spot breaking phenomenon caused by angle deviation.

[0050] Through the technical scheme, the application effectively solves the problem that the decorative part 5 does not sufficiently shield the mounting part 21, eliminates the phenomenon of uneven light distribution caused by angle deviation, and ensures the uniformity of light projection under the premise of maintaining the continuity of the appearance of the vehicle lamp.

[0051] The application further provides that the top end of the light guide 4 is provided with a groove 41 extending along the extension direction thereof, and light guide teeth are formed on both sides of the groove 41.

[0052] The groove 41 is a linear recess structure provided along the length direction of the light guide 4 and can be realized by machining or injection molding process, and is used for accommodating the light guide teeth and controlling the light propagation path. The light guide teeth are sawtooth-shaped protruding structures formed on both sides of the groove 41 and can be realized by mold forming of optical-grade resin material, and the surface angle is calculated and designed to realize total reflection of light.

[0053] Specifically, the light guide teeth 42 are arranged at a specific inclination angle, so that the light is totally reflected when transmitting in the light guide 4, thereby avoiding the light escaping from the surface of the light guide 4 to cause uneven light spots. The extension direction of the groove 41 is parallel to the axis of the light guide 4, and the light guide teeth 42 are symmetrically distributed along both sides of the groove 41. The light is conducted along the predetermined path after being reflected multiple times when passing through the light guide teeth 42 to the light-transmitting part 22. The light guide hole 221 of the inner lens 2 performs secondary refraction on the light, and uniformly diffuses the light transmitted by the light guide teeth 42 to the light-transmitting side 222.

[0054] Compared with the prior art, the conventional light guide 4 structure is directly exposed, resulting in too high visibility, while the combined structure of the groove 41 and the light guide teeth 42 restricts the light in the predetermined reflection path, reduces the visible area of the light guide 4 in the vehicle lamp, and improves the light transmission efficiency through the directional reflection of the light guide teeth 42. In the prior art, the smooth surface of the light guide 4 is easy to cause light scattering, and the present application realizes accurate control of the light path through the regular arrangement of the light guide teeth 42.

[0055] Through the technical scheme, the application effectively reduces the visual existence of the light guide 4 in the vehicle lamp, and improves the uniformity of the light distribution in the light-transmitting part 22. The directional reflection characteristics of the light guide teeth 42 reduce light loss, the secondary refraction effect of the light guide hole 221 eliminates local bright spots, maintains uniform light emission effect under the premise of reducing the number of LED lamp beads 31, and realizes the balance between the neatness of the appearance of the vehicle lamp and the optical performance.

[0056] The application further provides that the accommodating groove 111 is arc-shaped, and the light guide 4 is cylindrical.

[0057] The arc-shaped accommodating groove 111 refers to the groove body opened in the bending part 11 of the bracket 1 having a curved contour shape, which can be realized by a circular arc shape or an approximately arc-shaped geometric structure. The curvature radius of the accommodating groove 111 can be the same as or slightly larger than the outer diameter of the light guide 4 to form a spatial matching relationship. The light guide 4 in a cylindrical shape refers to the main body of the light guide 4 being a columnar structure with a circular cross section. Specifically, the cylindrical structure can be manufactured by an injection molding process to have an axisymmetric characteristic. The cylindrical structure can ensure that the light forms a total reflection path when conducting inside.

[0058] Specifically, the curved surface of the arc-shaped accommodating groove 111 forms a surface contact with the circumferential surface of the cylindrical light guide 4. When the light guide 4 is embedded in the accommodating groove 111, the outer wall thereof is tightly fitted with the curved surface of the groove body, thereby limiting the radial displacement and axial deflection of the light guide 4 through geometric constraints. During the light conduction process, the symmetrical structure of the cylindrical light guide 4 causes the incident light to uniformly undergo total reflection along the axial direction. The curved surface of the arc-shaped accommodating groove 111 guides the exposed part of the light guide 4 to form a predetermined angle with the light-transmitting part 22, so that the light conducted to the light-transmitting part 22 forms a parallel or approximately parallel emergent light beam after refraction through the light guide circular hole 221. The curved surface contact between the light guide 4 and the accommodating groove 111 also reduces the assembly gap, avoiding scattering loss of light due to structural misalignment in the conduction path.

[0059] Compared with the prior art, the conventional vehicle lamp adopts a rectangular or straight-line-shaped accommodating groove 111 matched with a polygonal light guide 4. The contact surface between the light guide 4 and the groove body has an angular gap, which leads to poor assembly stability and causes diffuse reflection of light at the corners. The present application matches the arc-shaped accommodating groove 111 with the cylindrical light guide 4 to change the contact surface into a continuous curved surface, which not only eliminates the interference of the assembly gap on the light conduction, but also improves the anti-vibration capability through curved surface contact. Meanwhile, the symmetrical structure of the cylindrical light guide 4 avoids the difference in intensity attenuation of light in the conduction direction.

[0060] Through the above technical solution, the present application solves the displacement risk caused by unstable assembly of the light guide 4, reduces the scattering loss of light due to structural mismatching during conduction, and improves the uniformity of the emergent light of the light-transmitting part 22. Meanwhile, the arc-shaped accommodating groove 111 enhances the wrapping of the light guide 4, effectively reduces the visual proportion of the exposed part of the light guide 4, and improves the overall appearance of the vehicle lamp.

[0061] The present application further provides that a plurality of light guide circles are uniformly and spacedly arranged.

[0062] The light guide circular hole 221 refers to a circular through hole opened in the side of the light-transmitting part 22 facing the bracket 1. Specifically, the hole structure can be uniformly distributed on the surface of the light-transmitting part 22 by mechanical stamping or laser engraving process. The uniform and spaced arrangement refers to keeping the spacing of the light guide circular holes 221 constant in the extension direction of the light-transmitting part 22, which can be realized by controlling the positioning accuracy of the processing equipment through a preset equidistant distribution algorithm.

[0063] Specifically, when the light rays are transmitted from the light guide 4 to the light-transmitting part 22, the uniformly spaced light-guiding round holes 221 form regular refraction nodes in the extension direction. The consistency of the spacing of each light-guiding round hole 221 ensures that the light rays experience the same number of refractions and angles at different positions of the light-transmitting part 22, avoiding sudden changes in the amount of deflection of the light rays due to differences in local hole density. When the light rays transmitted by the light guide 4 pass through the equidistantly distributed light-guiding round holes 221, their energy is uniformly distributed to each refraction node, thereby forming continuous and non-bright-dark demarcated light bands on the light-transmitting side 222.

[0064] Compared with the prior art, the light-guiding holes in the light guide 4 structure of the prior art are often randomly arranged or designed in a non-equidistant manner, resulting in uncontrollable light refraction paths and easy formation of brightness fluctuations or light spots on the light-transmitting surface. The present scheme strictly limits the uniform spacing of the light-guiding round holes 221, standardizes the degree of discretization and spatial distribution of the light propagation path, and eliminates the refraction intensity differences caused by excessive density or sparseness of holes in local areas.

[0065] Through the above technical scheme, the present application realizes uniform distribution of the light rays emitted by the light-transmitting part 22, avoiding the bright-dark stripe or light spot phenomenon caused by uneven arrangement of the light-guiding round holes 221. The uniformly spaced light-guiding round holes 221 form a continuous and smooth optical effect on the light-transmitting side 222, while reducing the visibility of the light guide 4 structure inside the vehicle lamp and improving the simplicity of the overall appearance.

[0066] The present application further proposes that the lamp beads 31 adopt LED lamps.

[0067] The LED lamp refers to a light source composed of light-emitting diodes, which can be implemented in a surface-mount or straight-insert package form, and has the characteristics of compact size and strong directivity. Through the directional emission characteristics of the LED lamp, the light rays can be accurately guided to the end of the light guide 4, reducing scattering loss, thereby avoiding uneven distribution of light rays caused by exposure of the light guide 4.

[0068] Specifically, the light rays emitted by the LED lamp directly enter the input end of the light guide 4 and are transmitted to the light-transmitting part 22 through total reflection inside the light guide 4. The light-guiding round holes 221 provided on the surface of the light guide 4 refract the light rays multiple times, causing the light rays to diffuse uniformly inside the light-transmitting part 22. Due to the high luminous efficiency of the LED, a single light source can meet the light intensity requirement, reducing the number of lamp beads 31 while still achieving uniform light distribution through the transmission and refraction of the light guide 4. The exposed part of the light guide 4 is covered by the light-transmitting part 22, avoiding direct visibility of the light guide 4 structure, thereby maintaining the integrity of the appearance of the vehicle lamp.

[0069] Compared with the prior art, the traditional scheme improves uniformity by increasing the number of LEDs, but leads to rising costs; and when a common light source is used in combination with the light guide 4, there is a problem of serious light scattering and the light guide 4 is exposed, affecting the appearance. The scheme combines the strong directivity of the LED with the light guide 4, reduces the number of light sources, and uses the high-efficiency directional light-emitting characteristics of the LED and the light-guiding effect of the light guide 4 to cooperate, avoiding the exposure of the light guide 4 and ensuring uniform light distribution.

[0070] Through the above technical scheme, the problem of maintaining the uniformity and appearance of the vehicle light in the case of reducing the number of LED lamps is solved, and the balance between low cost and high-quality optical effect is achieved.

[0071] The application further proposes that the vehicle light has a light-emitting and light-guiding structure 100.

[0072] The light-emitting and light-guiding structure 100 refers to an optical assembly integrated in the vehicle light, which can be implemented by the assembly structure of the bracket 1 and the light guide 4. The accommodating groove 111 formed by the bending part 11 of the bracket 1 is used to hide the main structure of the light guide 4, and only the exposed part is reserved corresponding to the light-transmitting part 22. The light-guiding round holes 221 of the inner lens 2 refer to the circular through hole array opened on the surface of the light-transmitting part 22, which can be uniformly arranged by holes with a diameter of 0.5mm to 2mm for multiple refraction of the conducted light. The shielding mounting part 21 of the decorative part 5 refers to the connection area of the inner lens 2 covered by the decorative part formed by injection molding, which can be fixed by buckling or bonding. The corresponding arrangement of the light guide 4 and the lamp bead 31 refers to the distance between the end face of the cylindrical light guide 4 and the LED light source being 1mm to 3mm, which can be precisely assembled by a positioning clamp.

[0073] Specifically, the arc-shaped accommodating groove 111 formed by the bending of the bracket 1 wraps the main part of the light guide 4, so that it is only exposed in the area corresponding to the light-transmitting part 22. The inner lens 2 is bent to form two functional areas: the light-transmitting part 22 is provided with an array of light-guiding round holes 221, and the mounting part 21 is completely covered by the decorative part 5. The single LED light source on the lamp panel 3 inputs light to one end of the light guide 4, and the light guide 4 conducts the light to the exposed area through the principle of total reflection. The light conducted to the light-transmitting part 22 is subjected to multiple refraction through the light-guiding round holes 221, forming uniform light output with a diffusion angle of 120° to 150°. The fixed connection of the decorative part 5 and the mounting part 21 hides the mounting structure of the inner lens 2, and at the same time forms a continuous appearance curve with the light-transmitting part 22. The corresponding position relationship between the exposed part of the light guide 4 and the light-guiding round holes 221 is determined by three-dimensional optical simulation, ensuring that the light transmission path and the refraction area are completely matched.

[0074] In some embodiments, the light guide 4 can adopt a polycarbonate cylinder with a diameter of 5 mm, and the exposed part has a length controlled in the range of 15 mm to 20 mm. The light guide holes 221 can adopt semispherical grooves 41 with a diameter of 1 mm, and are arranged in a group every 3 mm along the light transmission part 22. The decorative part 5 can be injection molded by black ABS material, and the inclination angle is set to 8° to match the shape of the mounting part 21.

[0075] Compared with the prior art, the traditional car lamp needs to arrange 6 to 8 LED lamp beads 31 to achieve uniform light emission, while the present scheme achieves the same light efficiency by a single LED cooperating with the light guide 4 structure. The existing light guide 4 structure usually exposes more than 80% of the length in the visible area, while the present scheme reduces the visible part of the light guide 4 to less than 30% through the design of the accommodating groove 111. The traditional decorative part 5 only covers the edge of the lamp body, and the decorative part 5 of the present scheme realizes complete shielding of the mounting structure through the inclined extension design.

[0076] Through the above technical scheme, the present application realizes the hiding of the main structure of the light guide 4, so that the appearance of the car lamp presents a continuous and complete light emitting area. The light rays are refracted by the array of light guide holes 221, so that the uniformity of single light source light emission reaches the equivalent level of multiple LED lamp panels 3. The integrated design of the decorative part 5 and the light transmission part 22 eliminates the visual fragmentation of the traditional light guide 4 structure, and at the same time reduces the number of LED lamp beads 31 by more than 50%. The precise correspondence between the exposed part of the light guide 4 and the light transmission part 22 avoids the loss of light dispersion, so that the light energy utilization rate is improved to more than 85%.

[0077] The present application further proposes a car lamp for automobile application.

[0078] In addition, the utility model discloses a car lamp, and the car lamp applies the light emitting and light guiding structure 100, and the specific structure of light emitting and light guiding structure 100 refers to the above embodiment, because the car lamp adopts all the technical schemes of the above all embodiments, so at least has all the beneficial effects brought by the technical scheme of the above embodiment, and here will not repeat again

[0079] In addition, the utility model discloses a vehicle, and the vehicle applies the car lamp, and the specific structure of the vehicle refers to the above embodiment, because the vehicle adopts all the technical schemes of the above all embodiments, so at least has all the beneficial effects brought by the technical scheme of the above embodiment, and here will not repeat again.

[0080] The above-mentioned is only the exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and all equivalent structure transformations made by the utility model specification and the contents of the drawings, or direct / indirect application in other related technical fields are included in the patent protection range of the utility model.

Claims

1. A light emitting light guide structure applied to a vehicle light of a vehicle, characterized by, The light-emitting light guide structure comprises: a support, a top end of the support forming a bent portion, the bent portion having a receiving groove; an inner lens, the inner lens being bent and forming a mounting portion and a light transmission portion, the light transmission portion being arranged close to the support, a plurality of light guide round holes being formed on one side of the light transmission portion facing the support, the plurality of light guide round holes being arranged at intervals along the extension direction of the light transmission portion, the other side of the light transmission portion facing away from the support being a light transmission side; a lamp plate, the lamp plate being arranged on one side of the support, the lamp plate having lamp beads arranged thereon; a light guide, the light guide being located in the receiving groove and partially exposed outside the receiving groove, one end of the light guide corresponding to the lamp beads, the part of the light guide exposed outside the receiving groove corresponding to the light transmission portion; a decorative piece, the decorative piece being used to fix and shield the mounting portion, the light rays emitted by the lamp beads entering the light guide, the light guide conducting the light rays to the light transmission portion, the light rays entering the light transmission portion being refracted through the light guide round holes and emitted from the light transmission side.

2. The light emitting light guide structure of claim 1, wherein, The mounting portion is arranged upwardly inclined in a direction away from the light transmission portion, one end of the decorative piece being located between the mounting portion and the light transmission portion, the other end of the decorative piece extending away from the end of the light transmission portion and being arranged upwardly inclined.

3. The light emitting light guide structure of claim 2, wherein, The end of the decorative piece away from the light transmission portion shields the mounting portion.

4. The light emitting light guide structure of claim 2, wherein, The included angle between the mounting portion and the decorative piece and a horizontal plane is 7°-10°.

5. The light emitting light guide structure of claim 1, wherein, The top end of the light guide is provided with a groove extending along the extension direction thereof, both sides of the groove being formed with light guide teeth.

6. The light emitting light guide structure of claim 1, wherein, The receiving groove is arc-shaped, and the light guide is cylindrical.

7. The light emitting light guide structure of claim 1, wherein, The plurality of light guide round holes are arranged at intervals.

8. The light emitting light guide structure of claim 1, wherein, The lamp beads are LED lamps.

9. A vehicle lamp characterized by The vehicle lamp applies the light-emitting light guide structure according to any one of claims 1-8.

10. A vehicle characterized by comprising: The vehicle applies the vehicle lamp according to claim 9.

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