Light guide structure, lamp and vehicle

Abstract

The utility model discloses a light guide structure, a lamp and a vehicle, the light guide structure comprises a support, a circuit board arranged on one side of the support, a lens assembly and a light guide assembly, and the circuit board is provided with a light source; the lens assembly comprises a first lens, a second lens and a third lens which are arranged at intervals, a first containing space is defined by the first lens and the support, a second containing space is defined by the second lens and the support, and a third containing space is defined by the third lens and the support; the light guide assembly comprises a main light guide contained in the first containing space, a first branch light guide contained in the second containing space and a second branch light guide contained in the third containing space, and the first branch light guide and the second branch light guide are arranged on the main light guide in a spaced mode. The light guide assembly is split into the main light guide, the first branch light guide and the second branch light guide, so that the light guide structure can achieve multi-area light emitting through one light source, the number of the light sources can be reduced, and the production cost of the light guide structure is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lamps, and in particular to a light guide structure, a lamp and a vehicle. Background Art

[0002] With the rapid development of automobile lighting technology, users have higher and higher requirements for automobile lighting. The existing light guide structure includes a circuit board, a light source arranged on the circuit board, a light guide, a bracket and a lens, wherein the light guide is accommodated in the accommodation space formed by the bracket and the lens, and one end of the light guide is placed on one side of the light source. The light emitted by the light source can enter the light guide and propagate along the axial direction of the light guide by total reflection, and finally be emitted from the lens. However, the structure of the existing light guide structure is single, and each light guide can only transmit light emitted by one light source. Multiple light guides are required to match multiple light sources to realize multi-region light emission of the light guide structure, and its production cost is relatively high.

[0003] Therefore, it is necessary to provide a new light guide structure, lamp and vehicle to solve the above technical problems. Utility Model Content

[0004] The main purpose of the utility model is to provide a light guide structure, a lamp and a vehicle, aiming to solve the problem of high production cost of the existing light guide structure.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a light guide structure, comprising:

[0006] Bracket;

[0007] A circuit board, wherein the circuit board is arranged on one side of the bracket and the circuit board is provided with a light source;

[0008] A lens assembly, the lens assembly comprising a first lens, a second lens and a third lens which are arranged at intervals, wherein the first lens is arranged on the bracket and surrounded by the bracket to form a first accommodation space, the second lens is arranged on the bracket and surrounded by the bracket to form a second accommodation space, and the third lens is arranged on the bracket and surrounded by the bracket to form a third accommodation space;

[0009] A light guide assembly, the light guide assembly comprising a main light guide accommodated in the first accommodating space, a first branch light guide accommodated in the second accommodating space, and a second branch light guide accommodated in the third accommodating space, the main light guide having a light incident surface, the main light guide being arranged on one side of the light source with the light incident surface facing the light source, and the first branch light guide and the second branch light guide being arranged at intervals from the main light guide.

[0010] In one embodiment, a first light guide tooth is provided on a side of the main light guide away from the first lens, a second light guide tooth is provided on a side of the first branch light guide away from the second lens, a third light guide tooth is provided on a side of the second branch light guide away from the third lens, the first light guide tooth has a first reflection surface arranged toward the first lens, the second light guide tooth has a second reflection surface arranged toward the second lens, and the third light guide tooth has a third reflection surface arranged toward the third lens.

[0011] In one embodiment, the diameter of the main light guide is α, the diameter of the connection between the first branch light guide and the main light guide is β, and the diameter of the connection between the second branch light guide and the main light guide is γ, wherein α>β>γ.

[0012] In one embodiment, the bracket is provided with a first groove, a second groove and a third groove which are spaced apart from each other, the first lens is provided with a fourth groove, the second lens is provided with a fifth groove, the third lens is provided with a sixth groove, the first groove and the fourth groove are provided to form the first accommodating space, the second groove and the fifth groove are provided to form the second accommodating space, and the third groove and the sixth groove are provided to form the third accommodating space.

[0013] In one embodiment, the first lens, the second lens and the third lens are all connected to the bracket by buckles.

[0014] In one embodiment, the main light guide, the first branch light guide and the second branch light guide are integrally formed.

[0015] In addition, the utility model also provides a lamp, comprising:

[0016] A shell and a cover, wherein the cover is arranged on the shell, and the cover and the shell are surrounded to form a containing cavity;

[0017] As described above, the light-guiding structure is accommodated in the accommodation cavity, and the lens assembly is arranged on a side of the bracket close to the cover body.

[0018] In one embodiment, the shell has a seventh groove, the cover has an eighth groove, and the seventh groove and the eighth groove are arranged to form the accommodating cavity.

[0019] In one embodiment, the shell is provided with a slot, the cover is formed with an insert block, the insert block is inserted into the slot, and hot melt adhesive is provided between the insert block and the inner wall of the slot.

[0020] In addition, the utility model also provides a vehicle, comprising the lamp as described above.

[0021] In the technical solution of the utility model, the main light guide is accommodated in the first accommodation space formed by the first lens and the bracket, the first branch light guide is accommodated in the second accommodation space formed by the second lens and the bracket, and the second branch light guide is accommodated in the third accommodation space formed by the third lens and the bracket. The main light guide, the first branch light guide and the second branch light guide can be supported and fixed to ensure the stability of the positions of the main light guide, the first branch light guide and the second branch light guide when in use; when in use, the light emitted by the light source is incident on the main light guide from the light incident surface and propagates along the axial direction of the main light guide by total reflection, and at the same time Part of the light in the main light guide will enter the first branch light guide and propagate along the axial direction of the first branch light guide by total reflection. Another part of the light in the main light guide will enter the second branch light guide and propagate along the axial direction of the second branch light guide by total reflection. Finally, the light in the main light guide is emitted from the first lens, the light in the first branch light guide is emitted from the second lens, and the light in the second branch light guide is emitted from the third lens. By placing the main light guide in the first accommodating space, the first branch light guide in the second accommodating space, and the second branch light guide in the third accommodating space, the multi-region light emission of the light guide structure can be achieved. The light guide structure splits the light guide component into the main light guide, and the first branch light guide and the second branch light guide spaced apart from the main light guide, so that the light incident from the light incident surface can enter the main light guide, the first branch light guide, and the second branch light guide, and be emitted from the first lens, the second lens, and the third lens. The light guide structure can achieve multi-region light emission through one light source, which can reduce the number of light sources and thus reduce the production cost of the light guide structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of the light guide structure in the embodiment of the utility model;

[0024] Figure 2 for Figure 1 sectional view of;

[0025] Figure 3 This is a schematic diagram of the structure of the bracket in the embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the light guide assembly in the embodiment of the utility model;

[0027] Figure 5 for Figure 4 A magnified image of point A;

[0028] Figure 6 for Figure 4 A magnified view of point B;

[0029] Figure 7 It is a schematic diagram of the overall structure of the lamp in the embodiment of the utility model.

[0030] Description of Figure Numbers:

[0031] Label name Label name 100 Bracket 110 First groove 120 Second groove 130 The third groove 200 Circuit Board 210 light source 300 Lens components 310 First lens 311 The first accommodation space 312 Fourth groove 320 Second lens 321 Second storage space 322 Fifth groove 330 The third lens 331 The third storage space 332 Sixth groove 400 Light guide components 410 Main light guide 411 Light incident surface 412 First light guide tooth 4121 First reflective surface 420 First branch light guide 421 Second light guide tooth 4211 Second reflective surface 430 Second branch light guide 431 The third light guide 4311 The third reflective surface 500 case 510 Accommodation cavity 520 Seventh groove 530 Slots 531 Hot Melt Adhesive 600 Cover 610 Eighth groove 620 Insert

[0032] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] The utility model provides a light guide structure, a lamp and a vehicle, aiming to solve the problem of high production cost of the existing light guide structure.

[0039] The embodiment of the utility model provides a light guide structure, such as Figure 1 and Figure 2 As shown, the light guide structure includes a bracket 100, a circuit board 200, a lens assembly 300 and a light guide assembly 400, the circuit board 200 is arranged on one side of the bracket 100, and the circuit board 200 is provided with a light source 210; the lens assembly 300 includes a first lens 310, a second lens 320 and a third lens 330 arranged at intervals, and the first lens 310 is arranged on the bracket 100 and is surrounded by the bracket 100 to form a first accommodating space 311, the second lens 320 is arranged on the bracket 100 and is surrounded by the bracket 100 to form a second accommodating space 321, and the third lens 330 is arranged at intervals. 330 is arranged on the bracket 100 and is surrounded by the bracket 100 to form a third accommodating space 331; the light guide component 400 includes a main light guide 410 accommodated in the first accommodating space 311, a first branch light guide 420 accommodated in the second accommodating space 321 and a second branch light guide 430 accommodated in the third accommodating space 331, the main light guide 410 has a light incident surface 411, the main light guide 410 is arranged on one side of the light source 210 with the light incident surface 411 facing the light source 210, and the first branch light guide 420 and the second branch light guide 430 are arranged at intervals from the main light guide 410.

[0040] Specifically, the main light guide 410 is accommodated in a first accommodation space 311 formed by the first lens 310 and the bracket 100, the first branch light guide 420 is accommodated in a second accommodation space 321 formed by the second lens 320 and the bracket 100, and the second branch light guide 430 is accommodated in a third accommodation space 331 formed by the third lens 330 and the bracket 100, which can support and fix the main light guide 410, the first branch light guide 420 and the second branch light guide 430 to ensure that the positions of the main light guide 410, the first branch light guide 420 and the second branch light guide 430 are stable when in use; when in use, the light emitted by the light source 210 is incident on the main light guide 410 from the light incident surface 411 and propagates along the axial direction of the main light guide 410 by total reflection. At the same time, part of the light in the main light guide 410 will enter the first branch light guide 420 and propagate along the axial direction of the first branch light guide 420 through total reflection, and another part of the light in the main light guide 410 will enter the second branch light guide 430 and propagate along the axial direction of the second branch light guide 430 through total reflection. Finally, the light in the main light guide 410 is emitted from the first lens 310, the light in the first branch light guide 420 is emitted from the second lens 320, and the light in the second branch light guide 430 is emitted from the third lens 330. By placing the main light guide 410 in the first accommodating space 311, the first branch light guide 420 in the second accommodating space 321, and the second branch light guide 430 in the third accommodating space 331, multi-region light emission of the light guide structure can be achieved. The light-guiding structure splits the light-guiding component 400 into a main light guide 410, and a first branch light guide 420 and a second branch light guide 430 spaced apart from the main light guide 410, so that light incident from the light-entering surface 411 can enter the main light guide 410, the first branch light guide 420, the second branch light guide 430, and be emitted from the first lens 310, the second lens 320 and the third lens 330, so that the light-guiding structure can realize multi-area light emission through one light source 210, thereby reducing the number of light sources 210 and thereby reducing the production cost of the light-guiding structure.

[0041] In this embodiment, the circuit board 200 is installed on the bracket 100 by bolt connection, and the first accommodating space 311 and the main light guide 410 have the same shape, the second accommodating space 321 and the first branch light guide 420 have the same shape, and the third accommodating space 331 and the second branch light guide 430 have the same shape; the light source 210 on the circuit board 200 is an LED lamp, which has the advantages of energy saving, fast response, long life and low cost. When the light guide structure is applied to the front position lamp of the car, the light source 210 on the circuit board 200 is a white light source; when the light guide structure is applied to the rear position lamp of the car, the light source 210 on the circuit board 200 is a red light source.

[0042] In one embodiment, if Figure 2As shown, a first light guide tooth 412 is provided on a side of the main light guide 410 away from the first lens 310, a second light guide tooth 421 is provided on a side of the first branch light guide 420 away from the second lens 320, and a third light guide tooth 431 is provided on a side of the second branch light guide 430 away from the third lens 330. The first light guide tooth 412 has a first reflection surface 4121 arranged toward the first lens 310, the second light guide tooth 421 has a second reflection surface 4211 arranged toward the second lens 320, and the third light guide tooth 431 has a third reflection surface 4311 arranged toward the third lens 330. Specifically, the first reflective surface 4121 of the first light guide tooth 412 can change the optical path of the light in the main light guide 410 so that the light in the main light guide 410 is emitted from the first lens 310; the second reflective surface 4211 of the second light guide tooth 421 can change the optical path of the light in the first branch light guide 420 so that the light in the first branch light guide 420 is emitted from the second lens 320; the third reflective surface 4311 of the third light guide tooth 431 can change the optical path of the light in the second branch light guide 430 so that the light in the second branch light guide 430 is emitted from the third lens 330.

[0043] In one embodiment, if Figures 4 to 6 As shown, the diameter size of the main light guide 410 is denoted as α, the diameter size of the connection between the first branch light guide 420 and the main light guide 410 is denoted as β, and the diameter size of the connection between the second branch light guide 430 and the main light guide 410 is denoted as γ, wherein α>β>γ. Specifically, since there is a difference between the diameter size of the connection between the first branch light guide 420 and the main light guide 410 and the diameter size of the connection between the second branch light guide 430 and the main light guide 410, the light fluxes entering the first branch light guide 420 and the second branch light guide 430 from the main light guide 410 are different, which can make the brightness of the main light guide 410, the first branch light guide 420 and the second branch light guide 430 different, thereby enhancing the layering and three-dimensional sense of the light guide structure when emitting light; specifically, since α>β>γ, the light flux of the main light guide 410 is The luminous flux of the main light guide 410 is greater than that of the first branch light guide 420, which is greater than the luminous flux of the second branch light guide 430, that is, the brightness of the main light guide 410 is greater than that of the first branch light guide 420, which is greater than that of the second branch light guide 430. This can make the light guide structure have a sense of layering and three-dimensionality when it emits light. In addition, designers can also adjust the size of α, β and γ according to actual needs to adjust the brightness of the main light guide 410, the first branch light guide 420 and the second branch light guide 430, so that the light guide structure can present different luminous effects.

[0044] In one embodiment, if Figure 2 and Figure 3As shown, the bracket 100 is provided with a first groove 110, a second groove 120 and a third groove 130 which are arranged at intervals, the first lens 310 is provided with a fourth groove 312, the second lens 320 is provided with a fifth groove 322, the third lens 330 is provided with a sixth groove 332, the first groove 110 and the fourth groove 312 are arranged to form a first accommodation space 311, the second groove 120 and the fifth groove 322 are arranged to form a second accommodation space 321, and the third groove 130 and the sixth groove 332 are arranged to form a third accommodation space 331. Specifically, the first accommodation space 311 is formed by the first groove 110 and the fourth groove 312, the second accommodation space 321 is formed by the second groove 120 and the fifth groove 322, and the third accommodation space 331 is formed by the third groove 130 and the sixth groove 332. It has the characteristics of simple structure and convenient manufacturing, and can reduce the difficulty of manufacturing the light guide structure.

[0045] In one embodiment, the first lens 310, the second lens 320 and the third lens 330 are all connected to the bracket 100 by buckles. Specifically, the first lens 310, the second lens 320 and the third lens 330 are all mounted to the bracket 100 by buckles, which can reduce the difficulty of assembling the light guide structure.

[0046] In one embodiment, the main light guide 410, the first branch light guide 420 and the second branch light guide 430 are integrally formed. Specifically, the light guide assembly 400 is an integrally formed structure, which can ensure the structural strength of the light guide assembly 400, simplify the installation process of the light guide structure, and reduce the difficulty of assembly.

[0047] In addition, the embodiment of the utility model further provides a lamp, such as Figure 7 As shown, the lamp comprises a housing 500, a cover 600 and the light guide structure as described above, the cover 600 is arranged on the housing 500, and the cover 600 and the housing 500 are surrounded to form a receiving cavity 510; the light guide structure is received in the receiving cavity 510, and the lens assembly 300 is arranged on the side of the bracket 100 close to the cover 600. Specifically, the housing 500 is made of an opaque material, the cover 600 is made of a transparent material, and the lens assembly 300 is arranged on the side of the bracket 100 close to the cover 600, which can ensure that the light emitted from the first lens 310, the second lens 320 and the third lens 330 can be emitted from the cover 600 to illuminate the external environment and ensure the normal use of the lamp; further, the cover 600 can be made of colorless transparent, red translucent, smoke gray translucent and pink translucent materials, so that the lamp presents different lighting effects. In this embodiment, the light guide structure is installed to the housing 500 by bolt connection.

[0048] Since the lamp includes the light guide structure as described above, the lamp has all the beneficial effects of the light guide structure as described above, which will not be described in detail here.

[0049] In a specific embodiment, Figure 7 As shown, the housing 500 has a seventh groove 520, the cover 600 has an eighth groove 610, and the seventh groove 520 and the eighth groove 610 are surrounded to form a receiving cavity 510. Specifically, the receiving cavity 510 is formed by the seventh groove 520 and the eighth groove 610, which has the characteristics of simple structure and convenient manufacturing, and can reduce the manufacturing difficulty of the lamp.

[0050] In a specific embodiment, Figure 7 As shown, the housing 500 is provided with a slot 530, the cover 600 is formed with an insert block 620, the insert block 620 is inserted into the slot 530, and a hot melt adhesive 531 is provided between the insert block 620 and the inner wall of the slot 530. Specifically, the insert block 620 is inserted into the slot 530, and the hot melt adhesive 531 is provided between the insert block 620 and the inner wall of the slot 530 to fix the housing 500 and the cover 600 together, which ensures that the housing 500 and the cover 600 are firmly fixed, and can ensure the airtightness of the lamp to prevent external water, dust and other debris from entering the lamp.

[0051] In addition, an embodiment of the utility model further provides a vehicle, comprising the lamp as described above.

[0052] Since the vehicle includes the lamp as described above, the vehicle has all the beneficial effects of the lamp, which will not be described in detail here.

[0053] In this embodiment, one design process of the light guide structure is as follows:

[0054] S1: Using 3D software to create a 3D model of the light guide assembly 400 according to actual requirements of the light-emitting area;

[0055] S2: Arrange the circuit board 200 and the light source, adjust the diameter size of the connection between the first branch light guide 420 and the main light guide 410 and the diameter size of the connection between the second branch light guide 430 and the main light guide 410, and use optical software to open the first light guide tooth 412 on the main light guide 410, the second light guide tooth 421 on the first branch light guide 420, and the third light guide tooth 431 on the third branch light guide;

[0056] S3: According to the shape and direction of the light guide assembly 400, 3D modeling of the first lens 310, the second lens 320, the third lens 330 and the bracket 100 is made;

[0057] S4: Use optical software to simulate light distribution and confirm the light effect. If the result is OK, the light guide structure can be applied to the lamp; if the result is NG, readjust the diameter size of the connection between the first branch light guide 420 and the main light guide 410, the diameter size of the connection between the second branch light guide 430 and the main light guide 410, the shape of the first light guide tooth 412, the shape of the second light guide tooth 421, and the shape of the third light guide tooth 431 until the light distribution simulation and the light effect simulation results are OK.

[0058] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A light guide structure, characterized in that: include: Bracket; A circuit board, wherein the circuit board is arranged on one side of the bracket and the circuit board is provided with a light source; A lens assembly, the lens assembly comprising a first lens, a second lens and a third lens which are arranged at intervals, wherein the first lens is arranged on the bracket and surrounded by the bracket to form a first accommodation space, the second lens is arranged on the bracket and surrounded by the bracket to form a second accommodation space, and the third lens is arranged on the bracket and surrounded by the bracket to form a third accommodation space; A light guide assembly, the light guide assembly comprising a main light guide accommodated in the first accommodating space, a first branch light guide accommodated in the second accommodating space, and a second branch light guide accommodated in the third accommodating space, the main light guide having a light incident surface, the main light guide being arranged on one side of the light source with the light incident surface facing the light source, and the first branch light guide and the second branch light guide being arranged at intervals from the main light guide.

2. The light guide structure according to claim 1, characterized in that: A first light guide tooth is provided on a side of the main light guide away from the first lens, a second light guide tooth is provided on a side of the first branch light guide away from the second lens, a third light guide tooth is provided on a side of the second branch light guide away from the third lens, the first light guide tooth has a first reflection surface arranged toward the first lens, the second light guide tooth has a second reflection surface arranged toward the second lens, and the third light guide tooth has a third reflection surface arranged toward the third lens.

3. The light guide structure according to claim 1, characterized in that: The diameter of the main light guide is denoted as α, the diameter of the connection between the first branch light guide and the main light guide is denoted as β, and the diameter of the connection between the second branch light guide and the main light guide is denoted as γ, wherein α>β>γ.

4. The light guide structure according to claim 1, characterized in that: The bracket is provided with a first groove, a second groove and a third groove which are arranged at intervals, the first lens is provided with a fourth groove, the second lens is provided with a fifth groove, and the third lens is provided with a sixth groove. The first groove and the fourth groove are provided to form the first accommodating space, the second groove and the fifth groove are provided to form the second accommodating space, and the third groove and the sixth groove are provided to form the third accommodating space.

5. The light guide structure according to claim 1, characterized in that: The first lens, the second lens and the third lens are all connected to the bracket through buckles.

6. The light guide structure according to any one of claims 1 to 5, characterized in that: The main light guide, the first branch light guide and the second branch light guide are integrally formed.

7. A lamp, characterized in that: include: A shell and a cover, wherein the cover is arranged on the shell, and the cover and the shell are surrounded to form a containing cavity; as well as According to any one of claims 1 to 6, the light-guiding structure is accommodated in the accommodation cavity, and the lens assembly is arranged on a side of the bracket close to the cover body.

8. The lamp according to claim 7, characterized in that The shell body has a seventh groove, the cover body has an eighth groove, and the seventh groove and the eighth groove are surrounded to form the accommodating cavity.

9. The lamp according to claim 7, characterized in that: The shell body is provided with a slot, the cover body is formed with an inserting block, the inserting block is inserted into the slot, and hot melt adhesive is arranged between the inserting block and the inner wall of the slot.

10. A vehicle, characterized in that: Comprising a lamp as described in any one of claims 7 to 9.

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