Positioning structure of optical part and through type lamp

Abstract

The utility model relates to the technical field of car lamp design, in particular to a locating structure of an optical part and a penetrating type lamp, the locating structure comprises a lamp shell, an upstream optical part and a middle section optical part, an upstream locating round hole and an upstream locating kidney-shaped hole which are assembled on a main locating pin are formed in an upstream optical piece, and a through hole is formed in the middle section optical piece. The outline of the upstream positioning kidney-shaped hole extends in the length direction of the lamp shell, and the middle-section optical part is spliced to the upstream optical part or the downstream of the middle-section optical part located at the upstream position after being lapped and positioned. The positioning structure of the optical part is suitable for any lamp design needing to accurately position the optical part, and is particularly suitable for a penetrating type lamp, the optical performance and durability of the lamp are remarkably improved by improving the positioning mode of the optical part, and meanwhile the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of car lamp design, concretely relates to a positioning structure of optical part and through type lamp. BACKGROUND

[0002] The design of the through type lamp aims to realize that the appearance presents a complete and uniform light emitting area. Due to the restriction of material, mould, cost and other factors, the existing optical scheme usually installs multiple adjacent optical parts in the interior, and adopts the mode of respectively positioning each optical part on the lamp shell. Specifically, each optical part is fixed on the lamp shell through independent positioning structure (such as positioning hole or buckle) to realize the accurate control of its position and angle.

[0003] However, the above positioning structure has the following shortcomings:

[0004] 1. Assembly error caused by lamp shell deformation: the lamp shell usually adopts plastic material, is easy to cause deformation due to temperature change or external force, when the lamp shell is deformed, the relative position between the optical parts fixed on the lamp shell will be offset, causes the assembly gap to be uncontrollable, influences the uniformity and stability of light beam.

[0005] 2. High production cost: in order to reduce assembly error, the production precision of single optical part is extremely high in the prior art, increases the cost and quality control difficulty of production process.

[0006] 3. Wear caused by vibration: when the gap between the optical parts is difficult to control, frequent vibration can accelerate the wear of parts, shorten the service life of the lamp, and increase the maintenance cost. SUMMARY

[0007] In order to solve the technical problem that the assembly gap between the optical parts is easily affected by the deformation of the lamp shell in the prior art, the positioning structure of the optical part and the through type lamp are provided, and the above technical problems are solved.

[0008] The technical scheme adopted by the utility model to solve its technical problems is:

[0009] The utility model provides a kind of positioning structure of optical parts, comprising: lamp shell, the connecting surface of lamp shell is formed with extending along length direction, the center line of connecting surface along length direction is formed with multiple main positioning pins perpendicular to the connecting surface;Upstream optical part, the upstream optical piece of upstream optical part is attached on the connecting surface, one upstream positioning round hole and one upstream positioning waist hole are formed on the upstream optical piece and assembled on the main positioning pin, the contour of upstream positioning waist hole extends along the length direction of lamp shell, so that the upstream optical part obtains degree of freedom in the length direction of lamp shell, two auxiliary positioning pins perpendicular to the connecting surface are formed at the downstream corner of upstream optical piece away from the first end of connecting surface;Middle optical part, the middle optical part is spliced in the downstream of upstream optical part or the middle optical part in upstream position after lap positioning, the middle optical piece of middle optical part is attached on the connecting surface, one middle positioning waist hole is formed on the middle optical piece and assembled on the main positioning pin, the contour of middle positioning waist hole extends along the length direction of lamp shell, so that the middle optical part obtains degree of freedom in the length direction of lamp shell, two auxiliary positioning pins perpendicular to the connecting surface are formed at the downstream corner of middle optical piece, two lap positioning plates are formed at the upstream corner of middle optical piece and lap on the upstream optical piece or the middle optical piece in upstream position, lap positioning round hole is formed on one of the lap positioning plates and assembled on corresponding auxiliary positioning pin, lap positioning waist hole is formed on the other lap positioning plate and assembled on corresponding auxiliary positioning pin, and the contour of lap positioning waist hole extends along the width direction of lamp shell.

[0010] Further, the middle optical part in the most downstream position is formed as downstream optical part, and the auxiliary positioning pin is not arranged on the downstream optical part.

[0011] Further, the upstream positioning waist hole of the upstream optical part is arranged away from the upstream of the middle optical part.

[0012] Further, all the lap positioning round holes extend along the length direction of the lamp shell and are arranged on one side of the lamp shell.

[0013] The utility model also provides a kind of through type lamps and lanterns, comprising the positioning structure of optical part described above.

[0014] Based on the above technical solutions, the utility model can achieve the following technical effects:

[0015] The positioning structure of the optical parts sets the main positioning of the upstream optical part on the lamp shell, and sets the main positioning of the remaining middle-section optical parts on the upstream optical part or the middle-section optical part at the upstream position, thereby forming a series positioning system, which effectively controls the assembly gap and reduces the error caused by the deformation of the lamp shell.

[0016] The positioning structure of the optical parts is designed to be open in the length direction of the lamp shell: the upstream optical part and the middle-section optical part form an integral optical assembly after splicing, and a certain degree of freedom is maintained in the length direction of the lamp shell, so that the optical assembly can move synchronously when the lamp shell deforms in the length direction, and the relative positions of the adjacent upstream optical part and the middle-section optical part remain unchanged, which significantly improves the optical stability.

[0017] The positioning structure of the optical parts reduces the production cost, provides the precision error space during assembly by optimizing the positioning mode, such as the setting of the upstream positioning waist hole and the lap positioning waist hole, reduces the requirement for the production precision of a single optical part, and thereby reduces the quality control cost in the production process.

[0018] The positioning structure of the optical parts is applicable to the positioning scheme between any two or more parts, and has a wide application range. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic view of the positioning structure of the optical parts.

[0020] In the utility model, 1 is a lamp shell, 11 is a connecting surface, and 12 is a main positioning pin.

[0021] 2 is an upstream optical part, 21 is an upstream optical sheet, 22 is an upstream positioning round hole, 23 is an upstream positioning waist hole, and 24 is an auxiliary positioning pin.

[0022] 3 is a middle-section optical part, 31 is a middle-section optical sheet, 32 is a middle-section positioning waist hole, 33 is a lap positioning plate, 34 is a lap positioning round hole, and 35 is a lap positioning waist hole. DETAILED DESCRIPTION

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] like Figure 1 As shown, the positioning structure of the optical component of this utility model includes a lamp housing 1, an upstream optical component 2, and a mid-section optical component 3. The lamp housing 1 is formed along the length direction (i.e., Figure 1 A connecting surface 11 extending in the Y direction is formed along the center line of the connecting surface 11, with multiple main positioning pins 12 perpendicular to the connecting surface 11. The upstream optical component 2 includes an upstream optical plate 21 attached to the connecting surface 11. The upstream optical plate 21 has an upstream positioning circular hole 22 and an upstream positioning waist hole 23 assembled on the main positioning pins 12. The outline of the upstream positioning waist hole 23 extends along the length direction of the lamp housing 1 to allow the upstream optical component 2 to have freedom in the length direction of the lamp housing 1. Two auxiliary positioning pins 24 perpendicular to the connecting surface 11 are formed at the downstream corner of the upstream optical plate 21 away from the beginning of the connecting surface 11. The middle optical component 3 is spliced ​​to the upstream optical component 2 or downstream of the middle optical component 3 in the upstream position after being assembled and positioned. The middle optical component 3 includes a middle optical plate 21 attached to the connecting surface 11. The middle optical section 31 has a mid-section positioning waist hole 32 formed on it, which is mounted on the main positioning pin 12. The outline of the mid-section positioning waist hole 32 extends along the length direction of the lamp housing 1, so that the middle optical component 3 has freedom in the length direction of the lamp housing 1. Two auxiliary positioning pins 24 perpendicular to the connecting surface 11 are formed at the downstream corner of the middle optical section 31. Two overlapping positioning plates 33 are formed at the upstream corner of the middle optical section 31, which overlap with the upstream optical section 21 or the middle optical section 31 located upstream. One of the overlapping positioning plates 33 has an overlapping positioning round hole 34 mounted on the corresponding auxiliary positioning pin 24, and the other overlapping positioning plate 33 has an overlapping positioning waist hole 35 mounted on the corresponding auxiliary positioning pin 24. The outline of the overlapping positioning waist hole 35 is along the width direction of the lamp housing 1 (i.e., Figure 1 (Extends in the X direction).

[0025] In one specific embodiment of the utility model, the middle optical component 3 located at the downstream end is formed as a downstream optical component, and the downstream optical component is not provided with auxiliary positioning pins 24.

[0026] In one specific embodiment of the utility model, the upstream positioning waist hole 23 of the upstream optical component 2 is arranged upstream of the middle optical component 3.

[0027] In one specific embodiment of the utility model, all the overlapping positioning holes 34 extend along the length direction of the lamp housing 1 and are arranged on one side of the lamp housing 1.

[0028] Another aspect of this utility model provides a through-type lamp, including the positioning structure of the aforementioned optical components.

[0029] The positioning structure of the optical components of this invention is applicable to any lighting design that requires precise positioning of optical components, especially for through-type lighting fixtures. By improving the positioning method of optical components, this invention significantly improves the optical performance and durability of lighting fixtures, while reducing production costs.

[0030] It should be understood that the specific embodiments described above are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A positioning structure of an optical component, characterized by, The application relates to a positioning structure of optical parts, comprising: a lamp shell (1) formed with a connecting surface (11) extending along a length direction, a plurality of main positioning pins (12) being formed on the connecting surface (11) along a center line in the length direction and being perpendicular to the connecting surface (11); an upstream optical part (2) comprising an upstream optical sheet (21) attached to the connecting surface (11), the upstream optical sheet (21) being formed with an upstream positioning round hole (22) and an upstream positioning waist hole (23) assembled on the main positioning pins (12), the upstream positioning waist hole (23) extending along the length direction of the lamp shell (1) so that the upstream optical part (2) has a degree of freedom in the length direction of the lamp shell (1), and the upstream optical sheet (21) being formed with two auxiliary positioning pins (24) perpendicular to the connecting surface (11) at downstream corners away from a first end of the connecting surface (11); a middle optical part (3) being positioned and spliced downstream of the upstream optical part (2) or the middle optical part (3) in an upstream position, the middle optical part (3) comprising a middle optical sheet (31) attached to the connecting surface (11), the middle optical sheet (31) being formed with a middle positioning waist hole (32) assembled on the main positioning pins (12), the middle positioning waist hole (32) extending along the length direction of the lamp shell (1) so that the middle optical part (3) has a degree of freedom in the length direction of the lamp shell (1), the middle optical sheet (31) being formed with the two auxiliary positioning pins (24) perpendicular to the connecting surface (11) at downstream corners, and the middle optical sheet (31) being formed with two overlapping positioning plates (33) overlapping the upstream optical sheet (21) or the middle optical sheet (31) in the upstream position at upstream corners, one of the overlapping positioning plates (33) being formed with an overlapping positioning round hole (34) assembled on the corresponding auxiliary positioning pin (24), and the other overlapping positioning plate (33) being formed with an overlapping positioning waist hole (35) assembled on the corresponding auxiliary positioning pin (24), the overlapping positioning waist hole (35) extending along a width direction of the lamp shell (1).

2. The positioning structure for optical parts according to claim 1, characterized in that, The middle optical part (3) in a most downstream position is formed as a downstream optical part, and the auxiliary positioning pins (24) are not arranged on the downstream optical part.

3. The positioning structure for optical parts according to claim 1, wherein The upstream positioning waist hole (23) of the upstream optical part (2) is arranged upstream of the middle optical part (3).

4. The positioning structure for optical parts according to claim 1, wherein All the overlapping positioning round holes (34) extend along the length direction of the lamp shell (1) and are arranged on one side of the lamp shell (1).

5. A through-lamp, characterized in that The application further relates to a positioning structure of optical parts comprising the positioning structure of the optical parts according to any one of claims 1-4.

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