Automobile lamp with circuit board and light guide strip directly installed on radiator

Abstract

The utility model discloses an automobile lamp with a circuit board and a light guide strip directly installed on a radiator, which comprises a lamp housing, a light guide strip, a radiator, a light guide strip and a light guide strip, and is characterized in that the lamp housing is provided with an assembly chamber and a light-emitting part; the radiator is provided with a first mounting surface and a second mounting surface, riveting convex columns are arranged on the first mounting surface, and positioning convex columns and mounting screw holes are arranged on the second mounting surface; the first circuit board is provided with a riveting insertion hole, the riveting insertion hole is riveted with the riveting convex column, and the first circuit board is provided with an LED lamp; and the light guide strip is provided with a second mounting part, the second mounting part is provided with a positioning insertion hole and a mounting insertion hole, the positioning insertion hole is matched with the positioning convex column in an insertion manner, and the light guide strip further comprises a mounting screw which penetrates through the mounting insertion hole and is in threaded fit with the mounting screw hole. By the adoption of the scheme, the first circuit board and the light guide strip are both installed on the radiator, so that the number of parts is smaller, and the heat dissipation effect is better.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of automobile lamps and lanterns, concretely relates to a kind of automobile lamps and lanterns of circuit board and light guide bar direct installation in radiator. BACKGROUND

[0002] Led lamp is one of the common lamps and lanterns in the field of automobile lamps and lanterns.Usually including lamp shell, mounting bracket, pcb and light guide bar, light guide bar is installed in mounting bracket, and is installed by the assembly of mounting bracket and lamp shell, pcb can be directly installed on mounting bracket, also can be installed on lamp shell to realize the relative positioning with light guide bar, in addition, the setting of led lamp is carried out on pcb, to make led lamp emit light and carry out light guide through light guide bar and shine out.

[0003] In addition, in order to ensure the normal work of led lamp, heat sink is usually set on lamp shell or mounting bracket, so that pcb is attached on heat sink to quickly heat pcb.

[0004] The above lamp has the problems of 1, more parts and increased production cost, 2, pcb and radiator are installed respectively, so that the contact stability of the two is poor, and the heat transfer efficiency is low under non-tight contact, which affects the heat dissipation effect. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of prior art, the utility model aims at providing a kind of automobile lamps and lanterns of circuit board and light guide bar direct installation in radiator, so that the number of parts is less, and the heat dissipation effect is better.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A car lamp with a circuit board and light guide strip directly mounted on a radiator includes: a lamp housing with an assembly chamber inside and a light-emitting portion on its surface; a radiator, which is a metal component located in the assembly chamber and fixedly installed with the lamp housing, the radiator having a first mounting surface and a second mounting surface, the first mounting surface having a riveting protrusion and the second mounting surface having a positioning protrusion and a mounting screw hole; and a first circuit board with a through-hole for riveting, the riveting hole and the riveting protrusion being inserted and riveted together to achieve the first circuit board being attached to the first mounting chamber. The first circuit board has an LED light on the side facing away from the first mounting surface. A light guide strip has a second mounting portion at one end, with a positioning hole and a mounting hole on the second mounting portion. The positioning hole and positioning protrusion are inserted and engaged. It also includes a mounting screw that passes through the mounting hole and is threaded into the mounting screw hole, so that the second mounting portion fits against the second mounting surface. The LED light and the light guide strip are positioned opposite each other at their lengths, and the outer periphery of the light guide strip and the light-emitting portion are positioned opposite each other, so that the light emitted by the LED light passes sequentially through the light guide strip and the light-emitting portion to illuminate the surface.

[0008] The present invention is further configured such that: one end of the light guide strip is provided with a first abutment and a second abutment that abut against the first circuit board, and an accommodating area is formed between the first abutment and the second abutment, and the LED light is located in the accommodating area.

[0009] The present invention is further configured such that: the first mounting surface and the second mounting surface are arranged adjacent to each other, and the direction of extension of the riveting protrusion and the direction of extension of the positioning protrusion are arranged perpendicular to each other.

[0010] The present invention is further configured such that: there are two heat sinks and two first circuit boards, and the two sets of heat sinks and first circuit boards are disposed at both ends of the light guide strip.

[0011] The present invention is further configured as follows: it also includes a main circuit board, which is located in the assembly chamber and fixedly installed with the lamp housing; the main circuit board is located in the middle of the length of the light guide strip, and the main circuit board is in the same long strip shape as the length direction of the light guide strip; each first circuit board is provided with a first connector, and the two ends of the length of the main circuit board are provided with second connectors, and a connecting wire is provided between each first connector and the adjacent second connector.

[0012] The present invention is further configured to include an external wire, an external opening on the lamp housing, one end of the external wire being located in the assembly chamber and electrically connected to the main circuit board, and the external wire passing through the external opening so that the other end of the external wire extends out of the lamp housing.

[0013] The present invention is further configured such that: the lamp housing includes an outer half-shell and an inner half-shell assembled together, the light-emitting part is disposed on the outer half-shell, and the outward opening is disposed on the inner half-shell.

[0014] The utility model further sets up: the inwards half shell is provided with area partition to divide the assembly chamber into the light emitting area and installation area, the light guide strip is located in the light emitting area, and the main circuit board is located in the installation area, the light guide strip is arranged with a plurality of mounting pieces along the length direction, and the mounting piece and the inwards half shell are detachably connected.

[0015] The utility model further sets up: the external lead wire includes first section and second section, one end of first section is electrically connected with main circuit board, first section is worn and set the overhanging opening, and the other end of first section is provided with third connector, second section is located on the outside of lamp shell, and one end of second section is provided with fourth connector which is detachably connected with third connector.

[0016] The utility model further sets up: the overhanging opening is provided with elastic member, and the lead wire through -hole is set up on the elastic member, and first section is set in the lead wire through -hole with interference.

[0017] Through adopting above-mentioned technical scheme, 1, the light emitted by the LED lamp is illuminated through the light guide strip and the light emitting part in turn;2, the riveting cooperation of the riveting column and the riveting hole realizes that the first circuit board is high-strength attached on the first mounting surface, so that the heat exchanger can fully and efficiently exchange heat with the first circuit board, and the heat dissipation effect is guaranteed;3, by directly installing the light guide strip on the heat exchanger, the first circuit board and the light guide strip are connected only through the heat exchanger, so that the number of parts of the overall structure is less, and the production cost is reduced;4, the high-precision installation of the light guide strip and the heat exchanger is realized by the cooperation of the positioning hole and the positioning column and the installation screw and the installation hole and the mounting screw hole, so that the cooperation precision of the light guide strip and the first circuit board is higher, and the light emitted by the LED lamp is more fully illuminated to the light guide strip. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0019] Figure 1 It is the assembly drawing of the specific embodiment of the utility model;

[0020] Figure 2 It is the explosion of the specific embodiment of the utility model Figure 1 ;

[0021] Figure 3 It is the explosion of the specific embodiment of the utility model Figure 2 ;

[0022] Figure 4The exploded view of the heat sink, the first circuit board and the light guide strip in the embodiment of the present utility model;

[0023] Figure 5 The cross-sectional view of the heat sink, the first circuit board and the light guide strip in the embodiment of the present utility model;

[0024] Figure 6 The schematic view of the light guide strip in the embodiment of the present utility model;

[0025] Figure 7 For Figure 4 The enlarged view of A in the embodiment of the present utility model;

[0026] Figure 8 For Figure 5 The enlarged view of B in the embodiment of the present utility model;

[0027] Figure 9 For Figure 6 The enlarged view of C in the embodiment of the present utility model;

[0028] Figure 10 The assembly view of the heat sink in the embodiment of the present utility model;

[0029] Figure 11 For Figure 10 The enlarged view of D in the embodiment of the present utility model;

[0030] Figure 12 For Figure 2 The enlarged view of E in the embodiment of the present utility model;

[0031] Figure 13 For Figure 6 The enlarged view of F in the embodiment of the present utility model;

[0032] Figure 14 The assembly view of the main circuit board, the connecting wire and the external wire in the embodiment of the present utility model;

[0033] Figure 15 For Figure 14 The enlarged view of H in the embodiment of the present utility model;

[0034] Figure 16 For Figure 3 The enlarged view of I in the embodiment of the present utility model.

[0035] Explanation of reference signs:

[0036] 1, lamp shell;

[0037] 11, outward-facing half shell; 12, inward-facing half shell; 13, assembly chamber; 14, light emitting part;

[0038] 121, outwardly extending opening; 122, area partition; 123, interference insertion hole; 131, light emitting area; 132, mounting area;

[0039] 1311, Positioning pin; 1312, Positioning screw hole;

[0040] 2. Radiator;

[0041] 21. First mounting surface; 22. Second mounting surface;

[0042] 211. Riveting protrusion; 221. Positioning protrusion; 222. Mounting screw hole;

[0043] 3. First circuit board;

[0044] 31. LED light; 32. Riveting socket; 33. First connector;

[0045] 4. Light guide strip;

[0046] 42. Second mounting section; 43. First abutment section; 44. Second abutment section; 45. Receiving area; 46. Mounting piece;

[0047] 421. Positioning socket; 422. Mounting socket; 423. Mounting screw; 461. First through hole; 462. Second through hole;

[0048] 5. Main circuit board;

[0049] 51. Second connector;

[0050] 6. Connect the wires;

[0051] 7. External wiring;

[0052] 71. First paragraph; 72. Second paragraph;

[0053] 711. Third connector; 721. Fourth connector;

[0054] 8. Elastic components;

[0055] 9. Disposable fasteners;

[0056] 91. Interference insert; 92. Cable tie. Detailed Implementation

[0057] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model, and the specific direct descriptions of related structures are merely for the convenience of understanding the present utility model; the specific features do not necessarily or directly limit the scope of implementation of the present utility model. Conventional choices and substitutions made by those skilled in the art under the guidance of the present utility model concept should all be considered within the scope of protection claimed by this utility model.

[0058] As Figures 1-3 shown, the utility model discloses a kind of circuit board and light guide bar directly mounted on automobile lamp of radiator, comprising:

[0059] Lamp shell 1, lamp shell 1 is left and right extension's long strip, and slightly arc, assembly chamber 13 is provided in lamp shell 1, and lamp shell 1 front surface is provided with light outlet 14;

[0060] Radiator 2, radiator 2 is metal piece, and ADC6 is specifically used in the embodiment, and can be processed into shape by die casting etc., radiator 2 is located in assembly chamber 13, and and lamp shell 1 is fixed and installed using screw;

[0061] First circuit board 3, first circuit board 3 is fixed and installed on radiator 2, and led lamp 31 is provided on first circuit board 3;

[0062] Light guide strip 4, light guide strip 4 is left and right extension's long strip, and slightly arc, to adapt the shape of lamp shell 1, light guide strip 4 can be detachably installed on radiator 2;

[0063] The length of led lamp 31 and light guide strip 4 is relatively arranged, and the outer periphery of light guide strip 4 and light outlet 14 are relatively arranged, so that the light emitted by led lamp 31 passes through light guide strip 4 and light outlet 14 in turn and is illuminated.

[0064] Preferably, the number of radiator 2 and first circuit board 3 in the embodiment is two, and two groups of radiator 2 and first circuit board 3 are arranged at the left and right ends of light guide strip 4, so that the led lamp 31 on each first circuit board 3 emits light, and is guided by light guide strip 4, which enhances the brightness of the illuminated light.

[0065] Specifically, as Figures 4-9 shown, radiator 2 is provided with first installation surface 21 inclined forward, and riveting convex column 211 is arranged on first installation surface 21 and inclined forward, in addition, riveting insertion hole 32 is arranged through first circuit board 3, and riveting insertion hole 32 and riveting convex column 211 are inserted and riveted, to realize that first circuit board 3 is attached to first installation surface 21.

[0066] Therefore, through the riveting cooperation of riveting convex column 211 and riveting insertion hole 32, first circuit board 3 is attached to first installation surface 21 with high strength, so that radiator 2 can fully and efficiently exchange heat with first circuit board 3, and the heat dissipation effect is guaranteed.

[0067] Among them, led lamp 31 is arranged on the side of first circuit board 3 away from first installation surface 21.

[0068] Specifically, the heat sink 2 is provided with a downward second mounting surface 22, the second mounting surface 22 is provided with a downward protruding positioning protruding column 221 and an upwardly opening mounting screw hole 222, in addition, the length of the light guide strip 4 is provided with a second mounting portion 42 at both ends, the second mounting portion 42 is provided with a positioning insertion hole 421 and a mounting insertion hole 422, the positioning insertion hole 421 and the positioning protruding column 221 are inserted and matched, and further comprising a mounting screw 423 which is threaded through the mounting insertion hole 422 and is screwed with the mounting screw hole 222, so as to realize the second mounting portion 42 adhering to the second mounting surface 22.

[0069] Therefore, 1, by directly mounting the light guide strip 4 on the heat sink 2, the first circuit board 3 and the light guide strip 4 are connected only through the heat sink 2, so that the number of components of the overall structure is less, and the production cost is reduced, 2, the positioning insertion hole 421 and the positioning protruding column 221 are inserted and matched, and the mounting screw 423 is matched with the mounting insertion hole 422 and the mounting screw hole 222 respectively, so as to realize the high-precision mounting of the light guide strip 4 and the heat sink 2, so that the cooperation precision of the light guide strip 4 and the first circuit board 3 is higher, and the light emitted by the led lamp 31 is more fully illuminated to the light guide strip 4.

[0070] Preferably, the length of the light guide strip 4 is provided with a first abutting portion 43 and a second abutting portion 44 abutting the first circuit board 3 at both ends, respectively, a containing area 45 is formed between the first abutting portion 43 and the second abutting portion 44, and the led lamp 31 is located in the containing area 45.

[0071] Therefore, by abutting the first abutting portion 43 and the second abutting portion 44 to the first circuit board 3, the first circuit board 3 and the light guide strip 4 are spaced at a minimum distance, so that the led lamp 31 located in the containing area 45 will not be damaged by the extrusion of the light guide strip 4 and the first circuit board 3 due to the proximity of the light guide strip 4 to the first circuit board 3, thereby protecting the led lamp 31.

[0072] Among them, since the first mounting surface 21 and the second mounting surface 22 are arranged adjacent to each other, the extension direction of the riveting protruding column 211 and the extension direction of the positioning protruding column 221 are arranged perpendicular to each other, so that the loosening of the mounting screw 423 to a certain extent makes the light guide strip 4 only offset in the vertical direction, and does not affect the distance between the led lamp 31 and the end of the light guide strip 4 in the horizontal direction, so that the incident light is basically unchanged.

[0073] In addition, as Figures 14-16As shown, the embodiment also includes a main circuit board 5, which is located in the assembly chamber 13 and fixedly installed on the lamp shell 1 by means of screws; wherein the main circuit board 5 is located at the rear side of the middle part of the length of the light guide strip 4 and has a strip shape same as the length direction of the light guide strip 4; wherein each first circuit board 3 is provided with a first terminal block 33, and the lengthwise two ends of the main circuit board 5 are provided with second terminal blocks 51, and the first terminal block 33 and the second terminal block 51 located on the same side of the main circuit board 5 are provided with a connecting wire 6, and the two ends of the connecting wire 6 are provided with terminal blocks at the same time, so that the connecting wire 6 is detachably installed with the first terminal block 33 and the second terminal block 51 respectively.

[0074] In addition, it also includes an external connecting wire 7, and the lamp shell 1 is provided with an external opening 121, one end of the external connecting wire 7 is located in the assembly chamber 13 and electrically connected with the main circuit board 5, specifically, one end of the external connecting wire 7 and the left connecting wire 6 are connected to the same terminal block, and are connected through the terminal block and the left second terminal block 51, in addition, the external connecting wire 7 passes through the external opening 121 so that the other end of the external connecting wire 7 extends out of the lamp shell 1, and the other end of the external connecting wire 7 extending out is connected to the circuit of the vehicle for use.

[0075] Wherein, the lamp shell 1 in the embodiment includes the outward-facing half shell 11 and the inward-facing half shell 12 assembled with each other, specifically, the outward-facing half shell 11 is below and the inward-facing half shell 12 is above, and the two are fixed by ultrasonic welding, adhesive and the like after being combined, wherein the light emitting part 14 is provided on the front side of the outward-facing half shell 11, and the external opening 121 is provided on the inward-facing half shell 12. After the lamp is assembled with the vehicle, the inward-facing half shell 12 is shielded by the vehicle and is in an invisible state, and the outward-facing half shell 11 is downward and is in a visible state, correspondingly, the light emitting part 14 needs to emit light, and therefore needs to be provided on the visible outward-facing half shell 11, and the external connecting wire 7 extending out through the external opening 121 is invisible at the inward-facing half shell 12, so that the overall appearance is more beautiful.

[0076] Preferably, as shown, Figures 10-13 As shown, the inward-facing half shell 12 is integrally injection molded with a region partition plate 122 to divide the assembly chamber 13 into a light emitting area 131 and a mounting area 132, the light guide strip 4 is located in the light emitting area 131, and the main circuit board 5 is located in the mounting area 132; in addition, the light guide strip 4 is provided with a plurality of mounting pieces 46 arranged along the length direction, the mounting piece 46 is detachably connected with the inward-facing half shell 12, specifically, the mounting piece 46 is provided with a first through hole 461 and / or a second through hole 462, the light emitting area 131 is provided with a downward protruding positioning column 1311 and an upwardly provided positioning screw hole 1312, the positioning column 1311 and the first through hole 461 are matched to position, and the second through hole 462 is screwed through and threadedly matched with the positioning screw hole 1312 to fixedly install the mounting piece 46 on the inward-facing half shell 12.

[0077] In addition, the external connecting wire 7 in the embodiment comprises a first segment 71 and a second segment 72, one end of the first segment 71 is electrically connected with the main circuit board 5, the first segment 71 passes through the external opening 121, the other end of the first segment 71 is provided with a third connecting device 711, the second segment 72 is located outside the lamp shell 1, one end of the second segment 72 is provided with a fourth connecting device 721 which is detachably connected with the third connecting device 711, so that the first segment 71 is arranged as a configuration line of the internal circuit in a shorter length to be closer to the lamp shell 1, and the second segment 72 is arranged in a longer length as an external connection for different use environments, or the second segment 72 of different lengths can be replaced to adapt to different use environments.

[0078] In addition, the external opening 121 is provided with an elastic element 8 in a clamping manner, the elastic element 8 is provided with a wire through hole, and the first segment 71 is inserted into the wire through hole in an interference manner, so as to improve the stability of the first segment 71 and prevent the first segment 71 from being affected by traction to affect the connection stability.

[0079] In addition, a disposable fixing element 9 is further included, the lamp shell 1 is provided with an interference insertion hole 123, the disposable fixing element 9 comprises an interference insertion column 91 and a binding tie 92, the interference insertion column 91 is inserted into the interference insertion hole 123 in an interference manner, and the binding tie 92 is bound to the outer periphery of the second segment 72, so as to bind the second segment 72 and fix the second segment 72 on the lamp shell 1 to ensure the connection stability of the first segment 71 and the second segment 72.

[0080] The above description of the disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle lamp with a circuit board and a light guide bar directly mounted on a heat sink, characterized in that, The utility model relates to a lamp, which comprises a lamp shell (1) with an assembly chamber (13) inside, a light emitting part (14) on the surface of the lamp shell (1), a heat sink (2) made of metal, which is located in the assembly chamber (13) and fixedly installed on the lamp shell (1), the heat sink (2) being provided with a first mounting surface (21) and a second mounting surface (22), the first mounting surface (21) being provided with a riveting protruding column (211), the second mounting surface (22) being provided with a positioning protruding column (221) and a mounting screw hole (222), a first circuit board (3) being provided with a riveting insertion hole (32) through it, the riveting insertion hole (32) and the riveting protruding column (211) being inserted and riveted to achieve the first circuit board (3) being attached to the first mounting surface (21), the first circuit board (3) being provided with an LED lamp (31) on the side away from the first mounting surface (21), a light guide strip (4) being provided with a second mounting part (42) at one end of the length, the second mounting part (42) being provided with a positioning insertion hole (421) and a mounting insertion hole (422), the positioning insertion hole (421) and the positioning protruding column (221) being inserted and matched, further comprising a mounting screw (423) inserted through the mounting insertion hole (422) and threadedly matched with the mounting screw hole (222) to achieve the second mounting part (42) being attached to the second mounting surface (22), the LED lamp (31) and one end of the length of the light guide strip (4) being oppositely arranged, the outer periphery of the light guide strip (4) and the light emitting part (14) being oppositely arranged to make the light emitted by the LED lamp (31) pass through the light guide strip (4) and the light emitting part (14) in sequence and be emitted. One end of the length of the light guide strip (4) is provided with a first abutting part (43) and a second abutting part (44) abutting against the first circuit board (3), a containing area (45) being formed between the first abutting part (43) and the second abutting part (44), the LED lamp (31) being located in the containing area (45). The first mounting surface (21) and the second mounting surface (22) are adjacently arranged, the direction in which the riveting protruding column (211) extends and the direction in which the positioning protruding column (221) extends are perpendicularly arranged. The number of the heat sink (2) and the first circuit board (3) is two, and two groups of the heat sink (2) and the first circuit board (3) are arranged at the two ends of the light guide strip (4). Further comprising a main circuit board (5) located in the assembly chamber (13) and fixedly installed on the lamp shell (1), The main circuit board (5) is located at the middle part of the length of the light guide strip (4), and the main circuit board (5) is in the form of a long strip same as the length direction of the light guide strip (4).

2. The automobile lamp of claim 1, wherein: ​ 3. The automobile lamp of claim 1, wherein: ​ 4. The automobile lamp of claim 1, wherein: ​ 5. The automobile lamp of claim 4, wherein: ​ ​ Each of the first circuit boards (3) is provided with a first connector (33), the main circuit board (5) is provided with a second connector (51) at both ends of the length, and a connecting wire (6) is arranged between each of the first connectors (33) and the adjacent second connector (51).

6. The automobile lamp of claim 5, wherein: An external connecting wire (7) is further included, one end of the external connecting wire (7) is located in the assembly chamber (13) and is electrically connected with the main circuit board (5), and the external connecting wire (7) passes through the external opening (121) to make the other end of the external connecting wire (7) extend out of the lamp shell (1).

7. The automobile lamp of claim 6, wherein: The lamp shell (1) comprises an outward-facing half shell (11) and an inward-facing half shell (12) which are assembled with each other, the light emitting part (14) is arranged on the outward-facing half shell (11), and the external opening (121) is arranged on the inward-facing half shell (12).

8. The automobile lamp of claim 7, wherein: The inward-facing half shell (12) is provided with a region partition plate (122) to divide the assembly chamber (13) into a light emitting area (131) and a mounting area (132), the light guide strip (4) is located in the light emitting area (131), and the main circuit board (5) is located in the mounting area (132). The light guide strip (4) is arranged with a plurality of mounting pieces (46) along the length direction, and the mounting piece (46) and the inward-facing half shell (12) are detachably connected.

9. The automobile lamp of claim 6, wherein: The external connecting wire (7) comprises a first segment (71) and a second segment (72), one end of the first segment (71) is electrically connected with the main circuit board (5), the first segment (71) passes through the external opening (121), the other end of the first segment (71) is provided with a third connector (711), the second segment (72) is located outside the lamp shell (1), and one end of the second segment (72) is provided with a fourth connector (721) which is detachably connected with the third connector (711).

10. The automobile lamp of claim 9, wherein: An elastic member (8) is arranged at the external opening (121), a wire through hole is arranged on the elastic member (8), and the first segment (71) is arranged in the wire through hole in an interference manner.

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