CN113280303A

CN113280303A - Car light optical element, head lamp module, car light and vehicle

Info

Publication number: CN113280303A
Application number: CN202011282181.3A
Authority: CN
Inventors: 仇智平; 祝贺; 严海月; 桑文慧
Original assignee: HASCO Vision Technology Co Ltd
Current assignee: HASCO Vision Technology Co Ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-08-20

Abstract

The invention relates to a vehicle lighting device, and discloses a vehicle lamp optical element, which comprises a light-gathering part (11), a first light-passing part (12) and a second light-passing part (13) which are sequentially arranged, wherein the light-gathering part (11), the first light-passing part (12) and the second light-passing part (13) are integrally molded, and the second light-passing part (13) is a silica gel molded part and can be contacted with an optical device. In addition, the invention also discloses a headlamp module, a vehicle lamp and a vehicle. The optical element of the vehicle lamp can avoid abrasion of the optical element and other optical devices.

Description

Car light optical element, head lamp module, car light and vehicle

Technical Field

The present invention relates to a vehicle lighting device, and particularly to a lamp optical element. In addition, the invention also relates to a headlamp module, a lamp and a vehicle comprising the optical element of the lamp.

Background

In the related art, in order to realize low beam illumination and high beam illumination of a vehicle, referring to fig. 1 and 2, a low beam optical element 1a and a high beam optical element 2a are provided in a vehicle lamp at the same time. In order to achieve a good connection between the low beam and the high beam and avoid a dark area at the connection between the low beam and the high beam, the front ends of the two optical elements are designed to contact each other or to be separated by a small distance (generally less than 1 mm).

However, because the passing light optical element 1a and the distance optical element 2a contact each other or the distance is nearer, above-mentioned both adopt the same kind of material to make and generally adopt harder PC or PMMA material, how much there can be the gap between the two to make the dark space appear in passing department of passing light shape and distance light shape, moreover, when the car light takes place to vibrate both looks mutual friction can produce certain wearing and tearing, both degree of wear has aggravated more, wear to go out the powder even, the stability of car light emergent light shape has been influenced, the car light life is reduced. Meanwhile, due to abrasion between the two optical elements, the distance between the front ends of the low beam optical element 1a and the high beam optical element 2a is increased, and the dark area at the joint of the low beam optical element and the high beam optical element is more obvious.

Therefore, the prior art cannot reduce the abrasion degree of the optical element of the vehicle lamp while ensuring the uniform connection of the low beam shape and the high beam shape.

In view of the above, a new optical element for a vehicle lamp is needed.

Disclosure of Invention

The object of the present invention is to provide an optical element for a vehicle lamp that prevents wear of the optical element itself and other optical components.

The second aspect of the present invention is to provide a headlamp module, which can achieve both wear resistance and uniformity of connection between a low beam shape and a high beam shape.

A third aspect of the present invention is to provide a vehicle lamp that can achieve both wear resistance and uniformity of coupling between a low beam shape and a high beam shape.

A fourth aspect of the present invention is to provide a vehicle lamp that can achieve both wear resistance and uniformity of coupling between a low beam shape and a high beam shape.

In order to solve the above technical problem, an aspect of the present invention provides an optical element for a vehicle lamp, including a light-gathering portion, a first light-passing portion, and a second light-passing portion, which are sequentially disposed, the light-gathering portion, the first light-passing portion, and the second light-passing portion being integrally molded, and the second light-passing portion being a silicone molded portion capable of contacting with an optical device.

Alternatively, an interface is formed between the first and second light passing parts, and the interface is a plane, a curved surface that is concave rearward, or a curved surface that is convex forward.

Preferably, the interface is formed with a plurality of curved surfaces that are convex forward and/or concave backward.

Alternatively, a boundary surface is formed between the first light passing portion and the second light passing portion, and the boundary surface is a bending surface.

Preferably, the upper edge of the second light passing part forms a high beam cut-off line structure to form a high beam cut-off line in a projection manner; or the lower edge of the second light passing part forms a low-beam cut-off line structure so as to form a low-beam cut-off line in a projection mode.

Preferably, the thickness of the second light passage portion is 20mm or less.

Preferably, the front end surface of the second light passing portion is a smooth curved surface with both sides bent forward.

In a specific configuration, a plurality of the light collecting portions are formed on the rear end surface of the first light passing portion.

As a specific structure form, the light-gathering part is of a light-gathering cup structure.

Preferably, the light condensing portion and the first light passing portion are plastic molding portions.

The second aspect of the present invention also provides a headlamp module including a light source, a low-beam optical element and a high-beam optical element, the low-beam optical element and/or the high-beam optical element being configured as the vehicular lamp optical element according to any one of the aspects of the first aspect, a front end of the low-beam optical element and a front end of the high-beam optical element being in contact.

The third aspect of the invention further provides a vehicle lamp, which comprises the headlamp module in the technical scheme of the second aspect.

The fourth aspect of the present invention further provides a vehicle including the lamp in the third aspect.

According to the optical element for the vehicle lamp in the basic technical scheme, the second light-passing part made of silica gel is arranged at the front end of the first light-passing part, and the second light-passing part can be in contact with the front end of the optical device in the headlamp module and simultaneously avoids abrasion between the second light-passing part and the optical device, so that the connection between the light shape formed by the outgoing of the optical element for the vehicle lamp and the light shape formed by the outgoing of the optical device is more uniform. When the vibration happens, because the second light-passing part is softer, the second light-passing part and the optical device are not easy to wear, so that the emergent light shape of the car lamp is more reliable, and the service life is longer.

Further advantages of the present invention, as well as the technical effects of preferred embodiments, are further described in the following detailed description.

Drawings

FIG. 1 is a schematic view of a headlamp module according to the prior art;

FIG. 2 is a schematic diagram of a prior art low beam optical element and high beam optical element;

FIG. 3 is one of the schematic structural views of a first embodiment of the optical element for a vehicular lamp according to the present invention;

FIG. 4 is a second schematic structural view of the first embodiment of the optical element of the vehicular lamp according to the present invention;

FIG. 5 is a sectional view taken along line B-B of FIG. 4;

FIG. 6 is a schematic structural view of a second embodiment of the optical element for a vehicle lamp according to the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 6 at D;

FIG. 8 is a schematic structural view of a first embodiment of a headlamp module of the present invention;

FIG. 9 is a cross-sectional view A-A of FIG. 8;

FIG. 10 is a schematic structural view of a second exemplary embodiment of a headlamp module according to the present invention;

FIG. 11 is a second schematic structural view of a second exemplary embodiment of a headlamp module according to the present invention;

fig. 12 is a cross-sectional view of fig. 11 taken along line C-C.

Description of the reference numerals

11 light-gathering part 12 first light-passing part

13 second light-passing portion 14 interface

2 conventional high beam optical element

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, and it is to be understood that the detailed description is provided for purposes of illustration and explanation and is not intended to limit the scope of the invention.

It should be understood that, as shown in fig. 3, based on the optical element of the vehicle lamp, when the optical element is normally installed in the vehicle lamp, along the light emitting direction, "front" refers to the end where the second light-passing portion 13 is located, "rear" refers to the end where the light-condensing portion 11 is located, "up" refers to the upper side along the light emitting direction, "down" refers to the lower side along the light emitting direction, and in the actual installation situation, the orientation terms should be interpreted according to the actual installation state and with reference to the optical element of the vehicle lamp itself, and the terms are based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing and simplifying the description, but are not for indicating or implying that the indicated device or element must have a specific orientation, be configured and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as either a fixed connection, a removable connection, or an integral connection; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. In the present invention, "a plurality" means two or more.

It should be noted that, for the requirements of vehicle lamp modeling, at least one inner lens may be disposed between the vehicle lamp optical element and the outer lens, and the inner lens may be a common plastic piece with equal wall thickness, only for representing the required modeling, or a light distribution plastic piece with a light distribution function on the back.

Referring to fig. 3 to 6, the optical element for a vehicle lamp according to the basic embodiment of the present invention includes a light condensing portion 11, a first light passing portion 12, and a second light passing portion 13, which are sequentially disposed, the light condensing portion 11, the first light passing portion 12, and the second light passing portion 13 are integrally molded members, the second light passing portion 13 is a silicone molded portion and can be in contact with an optical device, and the light condensing portion 11 can condense light and cause the light to be projected through the first light passing portion 12 and then projected through the front end surface of the first light passing portion 12 and the front end surface of the second light passing portion 13, or projected from the front end surface of the second light passing portion 13. It should be noted that the optical device may be a vehicle lamp optical element in the present invention, or may be a conventional optical element.

Among the prior art, in order to form the passing light shape and the distance light shape of vehicle and realize the good connection of passing light shape and distance light shape, the front end design of passing light optical element and distance light optical element is for contacting each other, or both are only apart from less distance, but the two looks mutual friction can produce certain wearing and tearing when the car light takes place to vibrate, moreover, above-mentioned both generally adopt harder PC or PMMA material to make, both degree of wear has aggravated more, the stability of car light emergent light shape has been influenced, the car light life-span has been reduced.

The front end of the optical element of the vehicle lamp is provided with the second light-passing part 13 made of silica gel, so that when the optical element of the vehicle lamp is contacted with other optical devices or is close to the optical devices, the optical element of the vehicle lamp can effectively avoid abrasion of the optical element and other optical devices. For example, when the optical element of the vehicle lamp is used for forming a low beam shape, the vehicle lamp vibrates to enable the second light passing portion 13 to rub against the front end of the high beam optical element in the headlamp module, and since the second light passing portion 13 is soft, the second light passing portion 13 and the high beam optical element are tightly attached and are not easily worn, the emergent beam shape of the vehicle lamp is more reliable, and the vibration reliability of the vehicle lamp can be effectively improved. Similarly, when the optical element of the vehicle lamp is used for forming a high beam shape, the low beam optical element used in cooperation with the optical element is not easy to wear. Alternatively, a plurality of the optical elements of the present invention may be used in the headlamp module, and the second light passing portions 13 of the plurality of optical elements of the lamp rub against each other, so that the second light passing portions 13 are soft and the second light passing portions 13 are not worn sharply. The optical element of the vehicle lamp of the basic embodiment of the invention has simple structure, and the second light-passing part 13 and the optical device are not easy to wear, and the second light-passing part 13 can be contacted with the front end of the optical device in the head lamp module, so that the light shape formed by the emergent light of the optical element of the vehicle lamp and the light shape formed by the emergent light of the optical device are more uniform, no dark space is generated, the stability of the emergent light shape of the vehicle lamp is ensured, and the service life of the vehicle lamp is prolonged.

There are various combinations between the first and second light-passing

parts

12 and 13, as long as the part contacting with the optical device is ensured to be made of silica gel. As a specific configuration, referring to fig. 6, an interface 14 is formed between the second light passing portion 13 and the first light passing portion 12, and the interface 14 may be a flat surface, a curved surface recessed rearward, or a curved surface protruding forward according to the light distribution requirement. Alternatively, as another specific structure form, referring to fig. 3 to 5, an interface 14 is formed between the first light-passing portion 12 and the second light-passing portion 13, the interface 14 is a bent surface, so that the first light-passing portion 12 covers the second light-passing portion 13, and only the front end surface of the second light-passing portion 13 and the contact surface with other optical devices are exposed, and this combination form can further increase the area of the interface 14 between the second light-passing portion 13 and the first light-passing portion 12, increase the combination force between the two, and reduce the second light-passing portion 13 consumables. The joint position of the second light-passing part 13 and the first light-passing part 12 forms an interface 14, two sides of the interface 14 are made of different materials, and the refractive indexes of the two materials are different, so that the interface 14 has the function of secondary light distribution, namely, the light distribution surface of the vehicle lamp optical element is increased, light is deflected from the first light-passing part 12 to enter the second light-passing part 13, the irradiation direction of the light can be changed on the interface 14, and the purposes of adjusting the light shape angle and improving the uniformity of the light shape are achieved, so that the vehicle lamp optical element provided by the invention can achieve secondary light distribution and improve the freedom degree of light distribution.

Further preferably, referring to fig. 7, the interface surface 14 is formed with a plurality of curved surfaces that are convex forward and/or concave backward, and specifically, the plurality of curved surfaces may be a single row and a plurality of columns, a plurality of rows and a plurality of columns or a plurality of rows and a plurality of columns. The curved surfaces can further improve the function of secondary light distribution, so that the light shape of the optical element of the vehicle lamp is more uniform.

Alternatively, when the above-described vehicular lamp optical element is used as a high beam optical element, the upper edge of the second light passing portion 13 forms a high beam cut-off line structure that is a smooth curve or a curve having a step difference to project a high beam cut-off line; alternatively, when the above-described vehicular lamp optical element is used as a low-beam optical element, the lower edge of the second light passing portion 13 forms a low-beam cut-off line structure that is a curve having a step difference to project a low-beam cut-off line.

Preferably, the thickness of the second light communication portion 13 is less than 20mm in order to accommodate the size of the vehicle lamp in the related art and save the material of the second light communication portion 13 to reduce the cost. Further preferably, the thickness of the second through-light part 13 is less than 10 mm.

Preferably, the front end surface of the second light passing portion 13 is a smooth curved surface with two sides bent forward, so that the emergent light shape is clearer and the cut-off line is sharper.

Preferably, in order to improve the brightness of the vehicle lamp and meet the requirements of a user on the personalized and scientific vehicle lamp shape, the rear end of the first light-passing part 12 is formed with a plurality of light-condensing parts 11, and the light-condensing parts 11 can be arranged in sequence along the width direction.

Preferably, the light-gathering portion 11 is of a light-gathering cup structure, an inner concave cavity is disposed at one end of the light-gathering portion 11, which is away from the first light-passing portion 12, the inner concave cavity includes a front light-entering surface and a side light-entering surface, the front light-entering surface is a curved surface which protrudes towards one side away from the first light-passing portion 12, the side light-entering surface is a curved surface which is gradually reduced from one end away from the first light-passing portion 12 to one end aperture close to the first light-passing portion 12, and an external profile surface of the light-gathering portion 11 is a curved surface which is gradually increased from one end away from the first light-passing portion 12 to one end aperture close to the first light-passing portion 12. The opening of the concave cavity faces the light source to receive the light emitted by the light source, the light-gathering part 11 can refract part of the light emitted by the light source to the first light-passing part 12 through the front light-entering surface of the concave cavity, the side light-entering surface of the concave cavity can refract other light emitted by the light source, and the refracted light is reflected to the first light-passing part 12 through the external profile surface, so that the full utilization of the light beam emitted by the light source can be basically realized, and the purpose of improving the light beam utilization rate of the light source can be achieved. Of course, the light-collecting part 11 of the present invention is not limited to the light-collecting cup structure, and the light-collecting part 11 may also be a curved structure protruding backward or another structure capable of collecting light.

Specifically, the light-condensing portion 11 and the first light-transmitting portion 12 having a large volume ratio are plastic molded portions, and the cost of plastic materials is low, such as Polycarbonate (PC), polymethyl methacrylate (PMMA), and the like; the second light-passing portion 13 is a silica gel molding portion, and the silica gel is softer than plastics such as PC or PMMA, so that the second light-passing portion 13 and other optical devices are not easy to wear. The second light passing portion 13 may be integrally molded with the light condensing portion 11 and the first light passing portion 12 as an insert, or may be integrally molded by two-color injection molding.

Referring to fig. 3 to 5, the optical element for a vehicle lamp according to a preferred embodiment of the present invention includes a light-condensing portion 11, a first light-passing portion 12, and a second light-passing portion 13, which are integrally formed, wherein a plurality of light-condensing portions 11 are formed at a rear end of the first light-passing portion 12, an interface 14 is formed between the first light-passing portion 12 and the second light-passing portion 13, the interface 14 is a bending surface, the first light-passing portion 12 is coated on the second light-passing portion 13, and only a front end surface of the second light-passing portion 13 and a contact surface with other optical devices are exposed, wherein the second light-passing portion 13 is a silicone molding portion, and the light-condensing portions 11 and the first light-passing portion 12 are plastic molding portions. The front end surface of the second light passing portion 13 is a smooth curved surface with two sides bent forward, and the lower edge of the second light passing portion 13 forms a low beam cut-off line structure for forming a low beam cut-off line.

The headlamp module of the present invention includes a light source, a low beam optical element and a high beam optical element, the low beam optical element and/or the high beam optical element being configured as the vehicular lamp optical element according to any one of the first aspect, and a front end of the low beam optical element and a front end of the high beam optical element being in contact. More vividly, in the embodiment of the optical element for a vehicle lamp shown in fig. 8 and 9, the optical element for a vehicle lamp is used to form a low beam shape and is disposed above the conventional high beam optical element 2, and the front ends of the two contact each other to make the connection of the low beam shape and the high beam shape more uniform, and when subjected to vibration, the second light passing portion 13 generates friction with the front end of the conventional high beam optical element 2. Alternatively, the vehicle lamp optical element is used to form a high beam shape and is disposed below a conventional low beam optical element; alternatively, referring to fig. 10 to 12, in the headlamp module in which the lamp optical element for forming the low beam shape and the lamp optical element for forming the high beam shape are disposed above and below each other, the two second light passing portions 13 generate friction with each other when subjected to vibration. However, in either case, since the second light passing portion 13 is soft, the optical device and the optical element of the vehicle lamp are less likely to be worn and dusted.

The vehicle lamp of the present invention includes the headlamp module in the second aspect, which may include the headlamp module in the foregoing embodiment, so that at least all the advantages brought by the technical solutions of the foregoing embodiments of the headlamp module are provided.

The vehicle of the present invention, including the lamp in the third aspect, may include the lamp in the foregoing embodiment, so that at least all the advantages brought by the embodiments of the lamp are provided.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. The optical element for the vehicle lamp is characterized by comprising a light-gathering part (11), a first light-passing part (12) and a second light-passing part (13) which are sequentially arranged, wherein the light-gathering part (11), the first light-passing part (12) and the second light-passing part (13) are integrally formed, and the second light-passing part (13) is a silica gel forming part which can be in contact with an optical device.

2. The optical element for a vehicular lamp according to claim 1, wherein a boundary surface (14) is formed between the first light passing portion (12) and the second light passing portion (13), and the boundary surface is a flat surface, a curved surface recessed rearward, or a curved surface protruding forward.

3. Automotive light optical element according to claim 2, characterized in that said interface (14) is formed with a plurality of curved surfaces that are convex and/or concave forwards.

4. The optical element according to claim 1, wherein a boundary surface (14) is formed between the first light passing portion (12) and the second light passing portion (13), and the boundary surface (14) is a bent surface.

5. The optical element for a vehicular lamp according to claim 1, wherein an upper edge of the second light passing portion (13) forms a high beam cut-off line structure to form a high beam cut-off line by projection; or the lower edge of the second light passing part (13) forms a low-beam cut-off line structure so as to form a low-beam cut-off line in a projection mode.

6. Automotive light optical element according to claim 1, characterized in that the thickness of the second portion of illumination (13) is less than 20 mm.

7. The optical element for a vehicular lamp according to claim 1, wherein the front end surface of the second light passing portion (13) is a smooth curved surface whose both sides are curved forward.

8. The vehicular lamp optical element according to claim 1, wherein a plurality of the light condensing portions (11) are formed at a rear end of the first light passing portion (12).

9. The optical element for a vehicle lamp according to claim 1, wherein the light-condensing portion (11) is a light-condensing cup structure.

10. The optical element for a vehicular lamp according to claim 1, wherein the light-condensing portion (11) and the first light-passing portion (12) are plastic molded portions.

11. A headlamp module characterized by comprising a light source, a low beam optical element and a high beam optical element, the low beam optical element and/or the high beam optical element being configured as the vehicular lamp optical element according to any one of claims 1 to 10, a front end of the low beam optical element and a front end of the high beam optical element being in contact.

12. A vehicle lamp comprising the headlamp module as defined in claim 11.

13. A vehicle characterized by comprising the lamp according to claim 12.