Light guide mounting structure and vehicle lamp

Abstract

The invention relates to the technical field of vehicle lighting, and particularly discloses a light guide mounting structure and a vehicle lamp, the light guide mounting structure comprises a mounting pipe body and a light guide mounting part, the mounting pipe body is a hollow cylinder, and the mounting pipe body comprises a first end and a second end in the axial direction of the hollow cylinder; the light guide mounting part is located at the first end of the mounting tube body and used for mounting a light guide, the second end of the mounting tube body is close to a luminous body, and an optical reflecting surface for reflecting light of the luminous body to the light guide is arranged on the inner wall of the mounting tube body. According to the light guide installation structure, the temperature resistance problem of the light guide can be effectively solved under the condition that the lighting effect is not affected, the defects of yellowing, fogging, burning melting and the like of the light guide are avoided, and the light guide cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle lighting technology, and in particular to a light guide installation structure and a vehicle lamp. Background Art

[0002] As an optical system, light guides are commonly used in narrow and compact vehicle lamp structures. Light emitted from a light source is introduced into the interior of the light guide through the light guide opening, and then is totally reflected by the light guide teeth on the back of the light guide, and is reflected out of the light guide, thereby forming a narrow and compact lighting effect.

[0003] At present, the distance between the light source and the light guide opening of the light guide is kept within a small range so that most of the light emitted by the light source can be gathered inside the light guide. However, since the light guide is very close to the light source, the temperature resistance pressure of the light guide increases, making the risk of defects such as yellowing, fogging, and melting of the light guide higher. Summary of the invention

[0004] The purpose of the present application is to provide a light guide installation structure and a vehicle lamp, which can effectively solve the temperature resistance problem of the light guide without affecting the light effect, avoid defects such as yellowing, fogging, and melting of the light guide, and reduce the cost of the light guide.

[0005] The embodiment of the present application is implemented as follows:

[0006] In the first aspect, an embodiment of the present application provides a light guide installation structure, including a mounting tube body and a light guide installation portion, wherein the mounting tube body is a hollow cylinder, and the mounting tube body includes a first end and a second end along the axial direction of the hollow cylinder, the light guide installation portion is located at the first end of the mounting tube body, the light guide installation portion is used to install the light guide, the second end of the mounting tube body is close to the light source, and the inner wall of the mounting tube body is provided with an optical reflective surface for reflecting the light of the light source to the light guide.

[0007] As an optional embodiment, the light guide mounting portion includes a guide structure and a positioning structure arranged on the inner wall of the mounting tube body; the guide structure extends from the first end of the mounting tube body toward the second end of the mounting tube body, and the guide structure and the positioning structure are used to guide and limit one end of the light guide within the mounting tube body.

[0008] As an optional embodiment, a plurality of connecting protrusions are provided at one end of the light guide, and the guide structure includes a plurality of sliding guide grooves arranged at intervals along the circumference of the inner wall of the mounting tube body and a plurality of light guide stop grooves corresponding to the sliding guide grooves, and the sliding guide grooves correspond to the connecting protrusions one by one; the extension direction of the sliding guide groove is consistent with the extension direction of the mounting tube body; the light guide stop groove is located at the end of the sliding guide groove away from the first end of the mounting tube body.

[0009] As an optional implementation, the positioning structure includes:

[0010] A plurality of first positioning ribs spaced apart along the inner wall of the mounting tube body in the circumferential direction; and / or a screw-in clamping groove with one end connected to the light guide stop groove and the other end extending along the circumferential direction of the mounting tube body.

[0011] As an optional embodiment, the light guide mounting structure also includes a lamp body mounting portion, the lamp body mounting portion includes a first limiting component located on the mounting tube body; the mounting tube body is provided with a matching structure for connecting with the lamp body, the matching structure includes a connecting sleeve that is mounted on the mounting tube body and connected to the lamp body, and a second limiting component is arranged on the connecting sleeve, the connecting sleeve includes a third end and a fourth end along the axial direction of the connecting sleeve, and the first limiting component and the second limiting component cooperate to limit the installation of the connecting sleeve and the mounting tube body.

[0012] As an optional embodiment, the first limiting assembly includes a mounting boss which is arranged on the outer wall of the first end of the mounting tube body and is distributed at intervals along the circumference of the mounting tube body. The mounting boss is used to cooperate with the second limiting assembly to perform axial and / or rotational limiting on the connecting sleeve.

[0013] As an optional embodiment, the second limiting assembly includes a mounting groove arranged on the inner wall of the third end of the connecting sleeve and a steering limiting boss arranged on the end surface of the third end of the connecting sleeve, the mounting groove corresponds to the mounting boss one by one, and the side walls at both ends of the steering limiting boss in the circumferential direction respectively form a limiting surface and an anti-reverse rotation surface;

[0014] Among them, the mounting groove is used to guide the corresponding mounting boss so that the connecting sleeve is sleeved on the mounting tube body from the first end of the mounting tube body until the mounting boss is located at the third end of the connecting sleeve, the limiting surface is used to abut the side wall of the mounting boss so that the connecting sleeve rotates relative to the mounting tube body along the first rotation direction to the set mounting position, and the anti-reverse rotation surface is used to limit the rotation angle of the connecting sleeve relative to the mounting tube body along the second rotation direction, and the first rotation direction is opposite to the second rotation direction.

[0015] As an optional implementation, the first limiting assembly further includes a first elastic structure arranged at the second end of the mounting tube;

[0016] The second limiting assembly includes an axial boss arranged on the end face of the fourth end of the connecting sleeve, and a guide surface is formed on a circumferential end side wall of the axial boss, wherein when the connecting sleeve is sleeved on the mounting tube body from the first end of the mounting tube body and rotates relative to the mounting tube body along a first rotation direction, the guide surface is used to guide the axial boss to abut the first elastic structure, so that the connecting sleeve is clamped between the mounting boss and the first elastic structure to axially limit the connecting sleeve.

[0017] As an optional implementation, the first limiting assembly includes at least one radial limiting structure disposed at the second end of the mounting tube body, and the radial limiting structure includes a radial limiting boss;

[0018] The second limiting assembly includes a radial limiting column arranged on the end surface of the fourth end of the connecting sleeve, and a side wall of one end of the radial limiting column in the circumferential direction forms a stop surface. When the connecting sleeve is sleeved with the mounting tube body from the first end of the mounting tube body and rotates relative to the mounting tube body along the first rotation direction until the radial limiting column abuts against the radial limiting boss, the stop surface is used to abut against the radial limiting boss to limit the connecting sleeve from rotating relative to the mounting tube body along the second rotation direction, and the first rotation direction is opposite to the second rotation direction.

[0019] As an optional embodiment, the optical waveguide mounting structure includes a heat sink mounting portion, which includes a flange connector arranged around the second end of the mounting tube body, the flange connector is used to position the heat sink assembly, and at least part of the first limiting assembly is arranged on the flange connector.

[0020] As an optional embodiment, an axial limit boss is provided at the first end of the flange connector away from the mounting tube body, and the axial limit boss is used to abut the radiator assembly; and / or, the radiator assembly is provided with a first positioning pin, and the flange connector is provided with a first positioning hole for cooperating with the first positioning pin of the radiator assembly.

[0021] As an optional implementation, the mounting tube body is an integrated mounting tube body or a split mounting tube body, and the split mounting tube body includes a first semi-cylindrical tube body and a second semi-cylindrical tube body, and the first semi-cylindrical tube body is snap-fitted with the second semi-cylindrical tube body.

[0022] As an optional embodiment, the split-type installation tube body includes at least one snap-on assembly and a bending-resistant connecting piece arranged at the same end of the first semi-cylindrical tube body and the second semi-cylindrical tube body, and the snap-on assembly includes a snap and a slot respectively arranged on the first semi-cylindrical tube body and the second semi-cylindrical tube body, and the snap is snapped into the corresponding slot to make the first semi-cylindrical tube body and the second semi-cylindrical tube body snap-fitted and connected.

[0023] As an optional embodiment, at least one snap assembly is arranged at the second end of the split mounting tube body, and the groove and / or snap of the snap assembly arranged at the second end of the split mounting tube body are correspondingly arranged with a second elastic assembly, and the second elastic assembly is used to abut the radiator assembly.

[0024] In a second aspect, an embodiment of the present application provides a vehicle lamp, comprising a light guide and the above-mentioned light guide mounting structure.

[0025] The beneficial effects of the embodiments of the present application include:

[0026] The embodiment of the present application provides a light guide installation structure, including a mounting tube body and a light guide installation part, the mounting tube body is a hollow cylinder, and the mounting tube body includes a first end and a second end along the axial direction of the hollow cylinder, the light guide installation part is located at the first end of the mounting tube body, the light guide installation part is used to install the light guide, the second end of the mounting tube body is close to the light emitter, and the inner wall of the mounting tube body is provided with an optical reflection surface for reflecting the light of the light emitter to the light guide. In the present application, the light guide is inserted into the first end of the mounting tube body, and the light emitter (light source) is arranged at the second end of the mounting tube body. On the one hand, the spacing between the light guide and the light emitter is adjusted by the mounting tube body, so as to avoid the problem of yellowing, fogging, and melting of the light guide due to the close distance between the light guide and the light emitter; on the other hand, the present application can be applied to the light guide prepared at low cost, and due to the reduction of the temperature of the light guide, a material with lower temperature resistance and lower price can be used, thereby effectively reducing the cost of the light guide in the car lamp; on the other hand, the light of the light emitter is reflected by the optical reflection surface of the inner wall of the mounting tube body and converged to the light guide, so that even if the distance between the light guide and the light emitter is increased, the lighting effect can still be guaranteed.

[0027] An embodiment of the present application provides a vehicle lamp, comprising a light guide and a light guide mounting structure as described above, so as to achieve the same technical effect as the light guide mounting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 This is one of the structural schematic diagrams of the light guide installation structure of an embodiment of the present application;

[0030] Figure 2 This is the second structural schematic diagram of the light guide installation structure of the embodiment of the present application;

[0031] Figure 3 This is the third structural schematic diagram of the light guide installation structure of the embodiment of the present application;

[0032] Figure 4 This is the fourth structural schematic diagram of the light guide installation structure of the embodiment of the present application;

[0033] Figure 5 This is the fifth structural diagram of the light guide installation structure of the embodiment of the present application;

[0034] Figure 6 This is the sixth structural diagram of the light guide installation structure of the embodiment of the present application;

[0035] Figure 7 This is the seventh structural diagram of the light guide installation structure of the embodiment of the present application;

[0036] Figure 8 This is the eighth structural diagram of the light guide installation structure of the embodiment of the present application;

[0037] Fig. 9 This is the ninth structural diagram of the light guide installation structure of the embodiment of the present application;

[0038] Fig.10 This is the tenth structural diagram of the light guide installation structure of the embodiment of the present application;

[0039] Fig.11 This is the eleventh structural diagram of the light guide installation structure of the embodiment of the present application;

[0040] Fig.12 This is the twelfth structural diagram of the light guide installation structure of the embodiment of the present application.

[0041] Icons: 100-mounting tube; 101-light guide mounting part; 102-lamp body mounting part; 103-heat sink mounting part; 104-mounting boss; 105-connecting boss; 106-matching structure; 107-flange connector; 108-optical reflective surface; 109-guiding structure; 110-positioning structure; 111-sliding guide groove; 112-light guide stop groove; 113-screw-in snap-in groove; 114-first positioning rib; 115-steering limit boss; 116-radial limit boss; 117-first elastic joint Structure; 118-connecting sleeve; 119-radial limiting column; 120-axial boss; 121-guide surface; 122-installing groove; 123-limiting surface; 124-anti-reverse rotation surface; 125-first semi-cylindrical tube body; 126-second semi-cylindrical tube body; 127-first positioning hole; 128-second positioning hole; 129-second positioning pin; 130-buckle; 131-slot; 132-axial limiting boss; 133-connecting sheet; 134-second elastic component; 135-retraction surface; 136-second positioning rib. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0044] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0045] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] Reference Figure 1 and Figure 4 As shown, an embodiment of the present application provides a light guide installation structure, including a mounting tube body 100 and a light guide installation portion 101, the mounting tube body 100 is a hollow cylinder, and the mounting tube body 100 includes a first end and a second end along the axial direction of the hollow cylinder, the light guide installation portion 101 is located at the first end of the mounting tube body 100, the light guide installation portion 101 is used to install the light guide, the second end of the mounting tube body 100 is close to the light source, and the inner wall of the mounting tube body 100 is provided with an optical reflective surface 108 that reflects the light of the light source to the light guide.

[0047] It should be noted that the optical reflective surface 108 provided on the inner wall of the mounting tube body 100 in the embodiment of the present application needs to be provided between the light guide light entrance surface and the light emitting body (light source), that is, on the inner wall of the mounting tube body 100 between the second end and the light entrance surface of the light guide, so as to act on the light generated by the light emitting body. The cross-section of the mounting tube body 100 can be a cylindrical tube, a square tube, or a cross-section of other shapes. The light entrance surface end of the light guide can be a circular surface, a rectangular surface, or a light entrance surface of other polygons. The shape of the inner wall of the first end of the mounting tube body 100 can be adapted to the shape of the outer wall of the light entrance surface end of the light guide.

[0048] Furthermore, the optical reflective surface 108 may be entirely or partially plated with a metal layer to improve the optical reflective efficiency of the reflective surface. The reflectivity of the metal layer may be greater than 80%. The material of the metal layer may be aluminum or chromium.

[0049] An embodiment of the present application provides a light guide installation structure, including a mounting tube body 100 and a light guide installation portion 101. The mounting tube body 100 is a hollow cylinder, and the mounting tube body 100 includes a first end and a second end along the axial direction of the hollow cylinder. The light guide installation portion 101 is located at the first end of the mounting tube body 100, and the light guide installation portion 101 is used to install the light guide. The second end of the mounting tube body 100 is close to the light source, and the inner wall of the mounting tube body 100 is provided with an optical reflection surface 108 that reflects the light of the light source to the light guide. In the present application, a light guide is inserted into the first end of the mounting tube body 100, and a light emitter (light source) is arranged at the second end of the mounting tube body 100. On the one hand, the distance between the light guide and the light emitter is adjusted by the mounting tube body 100 to avoid the problem of yellowing, fogging, and melting of the light guide due to the close distance between the light guide and the light emitter. On the other hand, the present application can be applied to light guides prepared at low cost. Due to the reduction in the temperature of the light guide, materials with lower temperature resistance and lower price can be used, thereby effectively reducing the cost of the light guide in the car lamp. On the other hand, the light of the light emitter is reflected by the optical reflective surface of the inner wall of the mounting tube body 100 and converged to the light guide, so that even if the distance between the light guide and the light emitter is increased, the lighting effect can still be guaranteed.

[0050] In some optional embodiments, through the light guide mounting structure, the distance between the light incident surface of the light guide and the light source (light source) can be greater than or equal to 10 mm. Compared with the existing spacing of 0.5 mm to 1.5 mm, the light guide of the present application does not need to withstand very high temperatures without affecting the lighting effect.

[0051] Reference Figure 1 and Figure 2 As an optional embodiment, the light guide mounting portion 101 includes a guide structure 109 and a positioning structure 110 arranged on the inner wall of the mounting tube body 100; the guide structure 109 extends from the first end of the mounting tube body 100 toward the second end of the mounting tube body 100, and the guide structure 109 and the positioning structure 110 are used to guide and limit one end of the light guide in the mounting tube body 100.

[0052] It should be noted that the inner wall of the mounting tube body 100 is in contact with the light guide. In the embodiment of the present application, the guide structure 109 can provide a guiding effect when the light guide enters the inner wall of the mounting tube body 100, ensuring that the light guide can enter smoothly. The positioning structure 110 is provided in the embodiment of the present application to achieve the clamping of the light guide, improve the stability of the light guide in the mounting tube body 100, and prevent the light guide from moving in the axial direction and rotating in the circumferential direction in the mounting tube body 100.

[0053] Reference Figure 1 and Figure 2 , Figure 5 and Figure 8 As shown, as an optional embodiment, a plurality of connecting protrusions 105 are provided at one end of the light guide. The guide structure 109 includes a plurality of sliding guide grooves 111 circumferentially spaced along the inner wall of the mounting tube body 100 and a plurality of light guide stop grooves 112 corresponding to and connected with the sliding guide grooves 111. The sliding guide grooves 111 correspond one-to-one to the connecting protrusions 105. The extending direction of the sliding guide grooves 111 is consistent with the extending direction of the mounting tube body 100. The light guide stop groove 112 is located at the end of the sliding guide groove 111 away from the first end of the mounting tube body 100. The embodiment of the present application enables the connecting protrusion 105 to be inserted into the mounting tube body 100 through the sliding guide grooves 111, and the connecting protrusion 105 is stopped by the light guide stop groove 112.

[0054] Specifically, the light guide may include a light input end and a cylindrical body connected to the light input end, and the connecting protrusion 105 may be arranged on the outer wall of the cylindrical body. Thus, there is no need to limit the shape of the light input end of the light guide. In some variations, the body of the light guide may also have other shapes, and the connecting protrusion 105 may be arranged according to the actual shape of the light guide. The present application may realize more variations, which will not be described in detail here.

[0055] Reference Figure 5 As an optional implementation, the positioning structure 110 includes: a plurality of first positioning ribs 114 arranged at intervals along the circumference of the mounting tube body 100 and located on the inner wall of the mounting tube body 100. The first positioning ribs 114 are used to prevent the light guide from rotating in the mounting tube body 100 and to prevent the light guide from axially moving in the mounting tube body 100. The embodiment of the present application can achieve a stable and reliable connection between the light guide and the mounting tube body 100 by arranging the first positioning ribs 114 on the inner wall of the mounting tube body 100.

[0056] Reference Fig. 9 As an optional embodiment, the positioning structure 110 includes a screw-in clamping groove 113, one end of which is connected to the light guide stop groove 112 and the other end of which extends along the circumference of the mounting tube body 100. After the connecting protrusion of the light guide is stopped by the light guide stop groove 112, the light guide or the mounting tube body 100 is rotated so that the connecting protrusion of the light guide rotates into the screw-in clamping groove 113, and the screw-in clamping groove 113 restricts the light guide from moving in the axial direction in the mounting tube body 100, and a section of the side wall of the screw-in clamping groove 113 can also restrict the light guide from rotating in the circumference of the mounting tube body 100.

[0057] It should be noted that the guide structure 109 and the positioning structure 110 do not only include the structures disclosed in this application. Those skilled in the art can set and combine the guide structure 109 and the positioning structure 110 as needed, and are not limited to the above-mentioned implementation manner.

[0058] Reference Figure 3 As shown, as an optional embodiment, the light guide installation structure also includes a lamp body installation part 102, and the lamp body installation part 102 includes a first limiting component located on the installation tube body 100. The installation tube body 100 is sleeved with a matching structure 106 for connecting with the lamp body, and the matching structure 106 includes a connecting sleeve 118 sleeved on the installation tube body 100 and connected to the lamp body, and a second limiting component arranged on the connecting sleeve 118, and the connecting sleeve 118 includes a third end and a fourth end along the axial direction of the connecting sleeve 118, and the first limiting component and the second limiting component cooperate to limit the installation of the connecting sleeve 118 and the installation tube body 100. Through the setting of the matching structure 106, the embodiment of the present application can make the first limiting component and the second limiting component connect and limit the installation tube body 100 and the matching structure 106 through the knob after the installation tube body 100 is inserted into the matching structure 106, so as to install the light guide installation structure on the lamp body of the vehicle lamp.

[0059] Reference Figure 2 As shown, specifically, the first limiting assembly may include a mounting boss 104 which is arranged on the outer wall of the first end of the mounting tube body 100 and is distributed at circumferential intervals along the mounting tube body 100. The mounting boss 104 can be used to cooperate with the second limiting assembly to perform axial limiting and / or rotation limiting on the connecting sleeve 118.

[0060] Exemplarily, there may be two or three mounting bosses 104 . Those skilled in the art may set the number of mounting bosses 104 as required, and no special limitation is made herein.

[0061] Reference Figure 3 and Figure 6 As shown, the second limiting assembly may include a mounting groove 122 arranged on the inner wall of the third end of the connecting sleeve 118 and a steering limiting boss 115 arranged on the end face of the third end of the connecting sleeve 118, the mounting groove 122 corresponds one-to-one to the mounting boss 104, and the side walls at both ends of the steering limiting boss 115 in the circumferential direction respectively form a limiting surface 123 and an anti-reverse rotation surface 124.

[0062] The mounting groove 122 is used to guide the corresponding mounting boss 104 so that the connecting sleeve 118 is sleeved on the mounting tube body 100 from the first end of the mounting tube body 100 until the mounting boss 104 is located at the third end of the connecting sleeve 118. The limiting surface 123 of the turning limiting boss 115 is used to abut against the side wall of the mounting boss 104 so that the connecting sleeve 118 rotates relative to the mounting tube body 100 along the first rotation direction to the set installation position (in this embodiment, the first rotation direction is Figure 6 The anti-reverse rotation surface 124 is used to limit the rotation angle of the connecting sleeve 118 relative to the mounting tube 100 along the second rotation direction. The first rotation direction is opposite to the second rotation direction (in this embodiment, the second rotation direction is Figure 6 Thus, the limiting surface 123 and the anti-reverse rotation surface 124 of the steering limiting boss 115 cooperate with the mounting boss 104 to achieve the steering limiting of the connecting sleeve 118 relative to the mounting tube body 100.

[0063] Reference Figure 2 As shown, further, the first limiting assembly also includes a first elastic structure 117 arranged at the second end of the mounting tube body 100 .

[0064] Reference Figure 3 As shown, the second limiting assembly includes an axial boss 120 arranged on the end surface of the fourth end of the connecting sleeve 118 , and a guide surface 121 is formed on a side wall of one circumferential end of the axial boss 120 .

[0065] When the connecting sleeve 118 is sleeved on the mounting tube body 100 from the first end thereof and rotates relative to the mounting tube body 100 along the first rotation direction, the guide surface 121 is used to guide the axial boss 120 to abut against the first elastic structure 117, so that the connecting sleeve 118 is clamped between the mounting boss 104 and the first elastic structure 117 to axially limit the connecting sleeve 118.

[0066] It should be noted that, in the embodiment of the present application, the first elastic structure 117 can be provided on the flange connector 107 to elastically support the fourth end of the connecting sleeve 118, so that the third end of the connecting sleeve 118 can be in close contact with the mounting boss 104. On the other hand, the provision of the first elastic structure 117 can reduce the dimensional accuracy requirements of the manufacturing process, which is conducive to reducing production costs. The elastic expansion distance of the first elastic structure 117 can allow the matching tolerance range of the connecting sleeve 118 and the mounting tube body 100 in the axial distance to be increased to a certain extent.

[0067] Furthermore, the axial boss 120 and the steering limit boss 115 can cooperate with each other. When the connecting sleeve 118 is sleeved on the mounting tube body 100 from the first end thereof and rotates relative to the mounting tube body 100 along the first rotation direction until the limiting surface 123 of the steering limit boss 115 abuts against the side wall of the mounting boss 104, the guide surface 121 of the axial boss 120 just guides the axial boss 120 to abut against the first elastic structure 117, so as to realize steering limit and axial limit at the same time.

[0068] Reference Figure 5 As shown, as an optional embodiment, the first limiting assembly includes at least one radial limiting structure arranged at the second end of the mounting tube body 100 , and the radial limiting structure includes a radial limiting boss 116 .

[0069] Reference Figure 3 and Fig.12 As shown, the second limiting assembly includes a radial limiting column 119 arranged on the end surface of the fourth end of the connecting sleeve 118, and a side wall of one end of the radial limiting column 119 in the circumferential direction forms a stop surface 135.

[0070] Among them, when the connecting sleeve 118 is sleeved on the mounting tube body 100 from the first end of the mounting tube body 100 and rotates relative to the mounting tube body 100 along the first rotation direction until the radial limiting column 119 abuts against the radial limiting boss 116, the stop surface 135 is used to abut against the radial limiting boss 116 to limit the connecting sleeve 118 relative to the mounting tube body 100 along the second rotation direction, and the first rotation direction is opposite to the second rotation direction. The embodiment of the present application can realize the engagement with the radial limiting boss 116 through the provision of the radial limiting column 119, and can prevent the connecting sleeve 118 and the mounting tube body 100 from relative rotation through the provision of the stop surface 135, thereby effectively avoiding loosening.

[0071] Further, the steering limit of the steering limit boss 115 and the steering limit of the radial limit boss 116 can cooperate with each other, when the connecting sleeve 118 is sleeved with the mounting tube body 100 from the first end of the mounting tube body 100 and rotates relative to the mounting tube body 100 in the first rotation direction until the limiting surface 123 of the steering limit boss 115 abuts against the side wall of the mounting boss 104, the radial limit column 119 abuts against the radial limit boss 116. The limiting surface 123 of the steering limit boss 115 prevents the connecting sleeve 118 from rotating relative to the mounting tube body 100 in the first rotation direction, and the stop surface 135 of the radial limit column 119 prevents the connecting sleeve 118 from rotating relative to the mounting tube body 100 in the second rotation direction, thereby, the connecting sleeve 118 can be limited in the circumferential direction to the set installation position.

[0072] Reference Figure 4As shown, as an optional embodiment, the light guide mounting structure includes a heat sink mounting portion 103, the heat sink mounting portion 103 includes a flange connector 107 arranged around the second end of the mounting tube body 100, the flange connector 107 is used to position the heat sink assembly, and at least part of the first limit assembly is arranged on the flange connector 107. The heat sink assembly can be connected to a circuit board, and a light source can be arranged on the circuit board, so that the light source can be located at the second end of the mounting tube body 100 through the connection between the heat sink mounting portion 103 and the heat sink assembly. The heat sink mounting portion 103 can also have other structures, and the present application is not limited thereto.

[0073] In some optional embodiments, the first end of the flange connector 107 away from the mounting tube 100 is provided with an axial limiting boss 132, and the axial limiting boss 132 can be used to abut against the radiator assembly. The axial limiting boss 132 realizes axial limiting of the radiator assembly.

[0074] In some optional embodiments, the radiator assembly is provided with a first locating pin, and the flange connector 107 is provided with a first locating hole 127 for cooperating with the first locating pin of the radiator assembly. The first locating hole 127 cooperates with the first locating pin to achieve radial positioning of the mounting tube 100 and the radiator assembly. In some variations, the first locating hole may also be provided on the radiator assembly, and the first locating pin may be provided on the flange connector 107 to achieve radial positioning of the mounting tube 100 and the radiator assembly.

[0075] The present application is not limited thereto, and other structural changes in axial limiting and radial positioning of the mounting tube body 100 and the radiator assembly are all within the protection scope of the present application.

[0076] As an optional implementation, the mounting tube body 100 may be an integrated mounting tube body 100 .

[0077] Reference Figure 7 and Fig.10 As shown, as an optional embodiment, the mounting tube body 100 is a split mounting tube body 100, and the split mounting tube body 100 includes a first semi-cylindrical tube body 125 and a second semi-cylindrical tube body 126, and the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126 are snap-fitted and connected.

[0078] For the split-type mounting tube body 100, since the optical reflective surfaces of the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126 are open in the demolding state, the metal layer plated on the optical reflective surface is more uniform compared to the inner side surface of the integrated mounting tube body 100, and is suitable for structures where the optical reflective surface needs to be plated deeper on the inner wall of the mounting tube body 100.

[0079] Reference Fig.11As shown, as an optional embodiment, the split installation tube body 100 includes at least one buckle assembly. The buckle assembly includes a buckle 130 and a slot 131 respectively arranged on the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126, and the buckle 130 is buckled with the corresponding slot 131, so that the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126 are buckled and connected.

[0080] Continue to see Fig.11 , multiple groups of buckle assemblies may be provided on the first semi-cylindrical body 125 and the second semi-cylindrical body 126. In this embodiment, two groups of buckle assemblies may be provided at the middle of the first semi-cylindrical body 125 and the second semi-cylindrical body 126 in the axial direction, wherein the two end surfaces of the first semi-cylindrical body 125 facing the second semi-cylindrical body 126 are respectively provided with a buckle groove 131 and a buckle 130, and the two end surfaces of the second semi-cylindrical body 126 facing the first semi-cylindrical body 125 are respectively provided with a buckle groove 131 and a buckle 130, thereby realizing the buckle connection of the first semi-cylindrical body 125 and the second semi-cylindrical body 126, and strengthening the connection strength of the middle of the first semi-cylindrical body 125 and the second semi-cylindrical body 126. In this embodiment, two sets of snap-fit ​​assemblies can also be provided at the second ends of the first semi-cylindrical body 125 and the second semi-cylindrical body 126, such as the flange connector 107 at the second ends of the first semi-cylindrical body 125 and the second semi-cylindrical body 126, wherein the two end surfaces of the first semi-cylindrical body 125 facing the second semi-cylindrical body 126 are respectively provided with a snap groove 131 and a snap 130, and the two end surfaces of the second semi-cylindrical body 126 facing the first semi-cylindrical body 125 are respectively provided with a snap groove 131 and a snap 130, thereby realizing a snap-fit ​​connection between the first semi-cylindrical body 125 and the second semi-cylindrical body 126, and strengthening the connection strength at the second ends of the first semi-cylindrical body 125 and the second semi-cylindrical body 126.

[0081] Reference Figure 7 As shown, as an optional embodiment, the split installation tube body 100 may further include a connecting piece 133 disposed at the same end connecting the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126. The connecting piece 133 is resistant to bending so that the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126 are snap-fitted and connected. In this embodiment, the connecting piece 133 may be disposed at the first end of the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126, so as to cooperate with the aforementioned buckle assembly to ensure the connection strength of the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126 at the end and the middle in the axial direction.

[0082] Exemplarily, the first semi-cylindrical body 125 is provided with a second positioning hole 128, and the second semi-cylindrical body 126 is provided with a second positioning pin 129, and the second positioning pin 129 is plugged into the second positioning hole 128. Thus, the first semi-cylindrical body 125 and the second semi-cylindrical body 126 can be positioned by the second positioning pin 129 and the second positioning hole 128. In some variations, the first semi-cylindrical body 125 can be provided with a second positioning pin 129, and the second semi-cylindrical body 126 can be provided with a second positioning hole 128. The present application can realize more variations of the auxiliary positioning structure of the first semi-cylindrical body 125 and the second semi-cylindrical body 126, and these variations are all within the protection scope of the present application and will not be described in detail here.

[0083] Furthermore, the flange connector 107 at the second end of the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126 may also be plugged into the second positioning hole 128 via the second positioning pin 129 so that the flange connector 107 is buckled.

[0084] As an optional embodiment, at least one buckle assembly is disposed at the second end of the split-type installation tube body 100, and the groove and / or buckle of the buckle assembly disposed at the second end of the split-type installation tube body 100 are correspondingly disposed with a second elastic assembly 134, and the second elastic assembly 134 is used to abut the radiator assembly. After the split-type installation tube body 100 and the radiator assembly are installed, if the buckle assembly of the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126 tends to be disengaged, the second ends of the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126 will tend to flip outwards. At this time, the second elastic assembly 134 cooperates with the radiator assembly so that the split-type installation tube body 100 is constrained by the radiator assembly, thereby making it possible to more reliably fasten the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126 together.

[0085] Reference Figure 1 and Figure 6 As shown, further, the outer wall of the split installation tube body 100 and the inner wall of the connecting sleeve 118 may be circumferentially distributed with second positioning ribs 136. If the buckle assembly of the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126 tends to be disengaged, the second ends of the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126 will tend to flip outward, and at this time the connecting sleeve 118 is sleeved on the split installation tube body 100, and the second positioning ribs 136 cooperate with the inner wall of the connecting sleeve 118 to achieve radial positioning, thereby limiting and constraining the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126, so that the first semi-cylindrical tube body 125 and the second semi-cylindrical tube body 126 are more reliably fastened together.

[0086] The embodiment of the present application also provides a vehicle lamp, including a light guide and the light guide mounting structure as described above. Due to the setting of the light guide mounting structure, the vehicle lamp provided by the present application can solve the problem of high temperature resistance of the light guide, and avoid the defects of yellowing, fogging, and melting of the light guide. Therefore, the present application can be applied to light guides prepared at low cost. Due to the reduction of the temperature of the light guide, materials with lower temperature resistance and lower price can be used, thereby effectively reducing the cost of the light guide in the vehicle lamp.

[0087] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A light guide installation structure, characterized in that: The invention comprises a mounting tube body and a light guide mounting portion, wherein the mounting tube body is a hollow cylinder, and comprises a first end and a second end along the axial direction of the hollow cylinder, the light guide mounting portion is located at the first end of the mounting tube body, the light guide mounting portion is used to mount the light guide, the second end of the mounting tube body is close to the light emitter, and the inner wall of the mounting tube body is provided with an optical reflective surface for reflecting the light of the light emitter to the light guide.

2. The light guide installation structure according to claim 1, characterized in that: The light guide mounting portion includes a guide structure and a positioning structure arranged on the inner wall of the mounting tube body; the guide structure extends from the first end of the mounting tube body toward the second end of the mounting tube body, and the guide structure and the positioning structure are used to guide and limit one end of the light guide within the mounting tube body.

3. The light guide installation structure according to claim 2, characterized in that: A plurality of connecting protrusions are arranged at one end of the light guide, and the guide structure includes a plurality of sliding guide grooves arranged at intervals along the circumference of the inner wall of the mounting tube body and a plurality of light guide stop grooves corresponding to and connected with the sliding guide grooves, and the sliding guide grooves correspond to the connecting protrusions one by one; the extension direction of the sliding guide groove is consistent with the extension direction of the mounting tube body; the light guide stop groove is located at the end of the sliding guide groove away from the first end of the mounting tube body.

4. The light guide installation structure according to claim 3, characterized in that: The positioning structure comprises: A plurality of first positioning ribs spaced apart along the inner wall of the mounting tube; and / or, One end is communicated with the light guide stop groove, and the other end is screwed into the clamping groove extending along the circumference of the mounting tube body.

5. The light guide installation structure according to claim 1, characterized in that: The light guide mounting structure also includes a lamp body mounting portion, which includes a first limiting assembly located on the mounting tube body; the mounting tube body is sleeved with a matching structure for connecting with the lamp body, the matching structure includes a connecting sleeve sleeved on the mounting tube body and connected to the lamp body, and a second limiting assembly arranged on the connecting sleeve, the connecting sleeve includes a third end and a fourth end along the axial direction of the connecting sleeve, the first limiting assembly and the second limiting assembly cooperate to limit the installation of the connecting sleeve and the mounting tube body.

6. The light guide installation structure according to claim 5, characterized in that: The first limiting assembly includes a mounting boss which is arranged on the outer wall of the first end of the mounting tube body and is spaced apart along the circumference of the mounting tube body. The mounting boss is used to cooperate with the second limiting assembly to axially limit and / or rotationally limit the connecting sleeve.

7. The light guide installation structure according to claim 6, characterized in that: The second limiting assembly comprises a mounting groove arranged on the inner wall of the third end of the connecting sleeve and a steering limiting boss arranged on the end surface of the third end of the connecting sleeve, the mounting groove corresponds to the mounting boss one by one, and the side walls at both ends of the steering limiting boss in the circumferential direction respectively form a limiting surface and an anti-reverse rotation surface; Wherein, the mounting groove is used to guide the corresponding mounting boss so that the connecting sleeve is sleeved on the mounting tube body from the first end of the mounting tube body until the mounting boss is located at the third end of the connecting sleeve, the limiting surface is used to abut the side wall of the mounting boss so that the connecting sleeve rotates relative to the mounting tube body along the first rotation direction to a set mounting position, and the anti-reverse rotation surface is used to limit the rotation angle of the connecting sleeve relative to the mounting tube body along the second rotation direction, and the first rotation direction is opposite to the second rotation direction.

8. The light guide installation structure according to claim 6, characterized in that: The first limiting assembly further includes a first elastic structure disposed at the second end of the mounting tube; The second limiting assembly includes an axial boss disposed on the end surface of the fourth end of the connecting sleeve, and a side wall of one end of the axial boss in the circumferential direction forms a guide surface. Wherein, when the connecting sleeve is sleeved on the mounting tube body from the first end of the mounting tube body and rotates relative to the mounting tube body along a first rotation direction, the guide surface is used to guide the axial boss to abut against the first elastic structure, so that the connecting sleeve is clamped between the mounting boss and the first elastic structure to axially limit the connecting sleeve.

9. The light guide installation structure according to claim 5, characterized in that: The first limiting assembly includes at least one radial limiting structure disposed at the second end of the mounting tube, and the radial limiting structure includes a radial limiting boss; The second limiting assembly comprises a radial limiting column arranged on the end surface of the fourth end of the connecting sleeve, and a side wall of one end of the radial limiting column in the circumferential direction forms a stop surface. Among them, when the connecting sleeve is sleeved on the mounting tube body from the first end of the mounting tube body and rotates along the first rotation direction relative to the mounting tube body until the radial limiting column abuts the radial limiting boss, the stop surface abuts the radial limiting boss to limit the connecting sleeve along the second rotation direction relative to the mounting tube body, and the first rotation direction is opposite to the second rotation direction.

10. The light guide installation structure according to claim 5, characterized in that: The light guide mounting structure includes a heat sink mounting portion, which includes a flange connector arranged around the second end of the mounting tube body, the flange connector is used to position the heat sink assembly, and at least part of the first limiting assembly is arranged on the flange connector.

11. The light guide installation structure according to claim 10, characterized in that: The first end of the flange connector away from the mounting tube body is provided with an axial limiting boss, and the axial limiting boss is used to abut against the radiator assembly; and / or The radiator assembly is provided with a first positioning pin, and the flange connector is provided with a first positioning hole for matching with the first positioning pin of the radiator assembly.

12. The light guide installation structure according to claim 1, characterized in that: The mounting tube body is an integrated mounting tube body or a split mounting tube body, and the split mounting tube body comprises a first semi-cylindrical tube body and a second semi-cylindrical tube body, and the first semi-cylindrical tube body is buckled and connected with the second semi-cylindrical tube body.

13. The light guide installation structure according to claim 12, characterized in that: The split-type installation tube body includes at least one snap-on assembly and a bending-resistant connecting piece arranged at the same end of the first semi-cylindrical tube body and the second semi-cylindrical tube body. The snap-on assembly includes a snap and a slot respectively arranged on the first semi-cylindrical tube body and the second semi-cylindrical tube body. The snap is snapped into the corresponding slot to enable the first semi-cylindrical tube body to be snap-connected with the second semi-cylindrical tube body.

14. The light guide installation structure according to claim 13, characterized in that: At least one of the snap-fit ​​components is disposed at the second end of the split mounting tube body, and a second elastic component is disposed correspondingly to the groove and / or snap of the snap-fit ​​component disposed at the second end of the split mounting tube body, and the second elastic component is used to abut against the radiator component.

15. A vehicle lamp, characterized in that: It comprises a light guide and a light guide mounting structure as claimed in any one of claims 1 to 14.

Images