Closed automobile headlamp

Abstract

The invention discloses a closed automobile headlamp which comprises a shell, a radiator, an LED light source module and a reflector, wherein the radiator, the LED light source module and the reflector are sequentially arranged in the shell. The low-beam radiator and the high-beam radiator directly abut against the inner side wall of the shell, after the low-beam light source module and the high-beam light source module generate heat during irradiation, the heat is firstly dissipated through the low-beam radiator and the high-beam radiator, and due to the fact that the low-beam radiator and the high-beam radiator directly abut against the shell, the heat is dissipated through the low-beam radiator and the high-beam radiator. And the low beam radiator and the high beam radiator directly conduct the heat to the shell, and then the shell conducts the heat to the outside air. Compared with the prior art that the low-beam radiator and the high-beam radiator need to conduct heat to gap air between the low-beam radiator and the high-beam radiator and the shell and then can conduct the heat to the shell, the low-beam radiator and the high-beam radiator directly conduct the heat to the shell, air conduction of the heat in the shell is avoided, the heat dissipation efficiency is improved, and the heat dissipation efficiency is improved. And the service life of the LED module is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of automobile lighting, in particular to a closed automobile headlamp. Background Art

[0002] Automobile headlights are required to have low beam and high beam functions, so the current aftermarket automobile headlights mainly use dual-beam light source modules, including low beam modules and high beam modules, and both high and low beams are LED light sources. Compared with traditional incandescent lamps and halogen lamps as headlight light source modules, this light source module has the advantages of small size, long life, low energy consumption, more energy saving and environmental protection. Therefore, the market demand for LED headlights is also increasing.

[0003] Since the LED module inside the LED headlamp will generate a high temperature when working, and the heat will accumulate, causing the luminous efficiency to decay or even the module to age and fail quickly, affecting the light intensity, the requirements for heat dissipation will be more stringent. The main structure of the headlamp on the market is to fix the LED module and the radiator together, and then cover the outside with a shell, and leave a gap between the shell and the radiator, causing the heat generated by the LED module to be first transferred to the radiator, then to the air in the gap between the shell and the radiator, and then to the shell, and then to the outside air. Since this method of heat conduction needs to be transferred through the air in the gap between the shell and the radiator, because the air has high thermal resistance and poor heat conduction ability, it leads to low heat dissipation efficiency, affecting the service life of the LED module. Summary of the invention

[0004] The purpose of the present invention is to provide a closed automobile headlamp to solve the problems existing in the above-mentioned prior art. When dissipating the heat of the LED module, the heat generated by the LED module can be dissipated through the radiator and then directly dissipated into the outside air through the shell, thereby avoiding heat conduction in the air inside the shell, improving the heat dissipation efficiency, and ensuring the service life of the LED module.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a closed automobile headlamp, comprising a shell and a radiator, an LED light source module and a reflector arranged in sequence in the shell, the radiator comprising a low-beam radiator and a high-beam radiator, the LED light source module comprising a low-beam light source module and a high-beam light source module and a driving plate for driving the low-beam light source module and the high-beam light source module, the reflector comprising a low-beam reflector and a high-beam reflector, the low-beam light source module being arranged between the low-beam radiator and the low-beam reflector and abutting against the low-beam radiator, the high-beam light source module being arranged between the high-beam radiator and the high-beam reflector and abutting against the high-beam A radiator, the outer wall of the low beam radiator away from the middle part of the shell abuts against the inner wall of the shell, the outer wall of the high beam radiator away from the middle part of the shell abuts against the inner wall of the shell, the low beam radiator is provided with a low beam radiator bracket, the low beam radiator bracket is provided with a light baffle, and the light baffle is covered with a lens; after the light emitted by the low beam light source module passes through the low beam reflector, the reflected light is adjusted by the light baffle, and then emitted through the lens to form a low beam light pattern; after the light emitted by the high beam light source passes through the high beam reflector, the reflected light is emitted through the lens to form a high beam light pattern.

[0007] Preferably, a low beam radiator groove is provided on one side of the low beam radiator close to the middle of the shell, and the low beam light source module is snapped into the low beam radiator groove; a high beam radiator groove is provided on one side of the high beam radiator close to the middle of the shell, and the high beam light source module is snapped into the high beam radiator groove.

[0008] Preferably, the driving plate is connected to the rear cover, the rear cover is connected to the housing, and a first sealing ring is provided at the connection between the rear cover and the housing.

[0009] Preferably, the lens is snap-connected to the upper end of a lens bracket, and the lens bracket is connected to the housing.

[0010] Preferably, the outer cover of the lens is provided with a lampshade, the lampshade is connected to a lampshade bracket, the lampshade bracket is sleeved on the outside of the lens bracket, and the lower end of the lampshade bracket is connected to the shell.

[0011] Preferably, a second sealing ring is provided at the connection between the lampshade bracket and the housing.

[0012] Preferably, a rear cover center hole is provided at the bottom of the rear cover, and a connecting rod of the driving plate passes through the rear cover center hole for connection with an external vehicle.

[0013] Preferably, a rear cover reinforcement rib is provided on the bottom surface of the rear cover, a first shell reinforcement rib is provided on the outer wall of the shell abutting the low beam radiator, and a second shell reinforcement rib is provided on the outer wall of the shell abutting the high beam radiator.

[0014] Preferably, the rear cover, the housing, the lampshade bracket and the lampshade are connected as one body so that the automobile headlamp is a closed type.

[0015] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0016] 1. The closed automobile headlamp provided by the present invention directly abuts the inner wall of the shell with the low-beam radiator and the high-beam radiator respectively. When the low-beam light source module and the high-beam light source module generate heat during irradiation, the heat is first dissipated through the low-beam radiator and the high-beam radiator respectively. Since the low-beam radiator and the high-beam radiator are directly abutted with the shell, the low-beam radiator and the high-beam radiator directly conduct the heat to the shell, and the shell then conducts the heat to the outside air. Compared with the low-beam radiator and the high-beam radiator in the prior art, which need to conduct the heat to the air in the gap between them and the shell before conducting it to the shell, the low-beam radiator and the high-beam radiator in this setting conduct the heat directly to the shell, avoiding the heat conduction in the air inside the shell, improving the heat dissipation efficiency, and ensuring the service life of the LED module.

[0017] 2. The closed automobile headlamp provided by the present invention has an upper opening on the rear cover at the upper end thereof, which is connected to the lower opening of the shell body, thus realizing the closedness of the lower part of the shell body. A lampshade is provided on the outer cover of the lens, which is snap-fitted to the upper end of the lampshade bracket, so that the upper part of the lampshade bracket is closed. The lampshade bracket is sleeved on the outside of the lens bracket, and the lower end of the lampshade bracket is fixedly connected to the outer connecting part of the shell body by screws. The arrangement of the lampshade and the lampshade bracket protects the lens and the parts inside the shell body, and the rear cover, the shell body, the lampshade bracket and the lampshade are connected as one body, so that the automobile headlamp is an integral closed type, which reduces the entry of dust and other debris into the interior of the lamp, prolongs the service life of the parts inside the lamp, and makes the lamp more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the closed automobile headlamp in the present invention;

[0020] Figure 2 It is a schematic diagram of the exploded structure of the enclosed automobile headlamp in the present invention;

[0021] Figure 3 It is a schematic diagram of the exploded structure of the enclosed automobile headlamp in the present invention;

[0022] Figure 4 It is a schematic cross-sectional structure diagram of a closed automobile headlamp in the present invention;

[0023] In the figure: 1-shell, 2-shell upper opening, 3-shell lower opening, 4-lower beam radiator, 5-lower beam radiator groove, 6-lower beam light source module, 7-high beam radiator, 8-high beam radiator groove, 9-high beam light source module, 10-lower beam reflector, 11-high beam reflector, 12-lower beam radiator bracket, 13-light baffle, 14-lens, 15-drive plate, 16-rear cover, 17-rear cover upper opening, 18-first sealing ring, 19-rear cover center hole, 20-connecting rod, 21-lens bracket, 22-inner connecting part, 23-outer connecting part, 24-lampshade, 25-lampshade bracket, 26-second sealing ring, 27-rear cover reinforcement rib, 28-first shell reinforcement rib, 29-second shell reinforcement rib. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] The present invention provides a closed type automobile headlamp, such as Figure 1-Figure 4As shown, the enclosed automobile headlamp includes a housing 1, which is cylindrical and has an upper opening 2 and a lower opening 3. A low-beam radiator 4, a high-beam radiator 7, a low-beam reflector 10, a high-beam reflector 11, a low-beam light source module 6 and a high-beam light source module 9 are all arranged inside the housing 1. A low-beam radiator groove 5 is provided on one side of the low-beam radiator 4 close to the middle of the housing 1. The low-beam light source module 6 is clamped and abutted against the low-beam radiator groove 5, and the two are fixed with screws to increase the stability of the device. A high-beam radiator groove 8 is provided on one side of the high-beam radiator 7 close to the middle of the housing 1. The high-beam light source module 9 is clamped and abutted against the high-beam radiator groove 8, and the two are fixed with screws to increase the stability of the device. The inner side wall of the housing 1 is matched with the low beam radiator 4 and the high beam radiator 7, respectively, so that the outer side wall of the low beam radiator 4 away from the middle of the housing 1 abuts against the inner side wall of the housing 1, and the outer side wall of the high beam radiator 7 away from the middle of the housing 1 also abuts against the inner side wall of the housing 1, and they are fixed with screws to increase the stability of the device. By directly abutting the low beam radiator 4 and the high beam radiator 7 against the inner side wall of the housing 1, when the low beam light source module 6 and the high beam light source module 9 generate heat during irradiation, the heat will first be dissipated through the low beam radiator 4 and the high beam radiator 7, respectively. Since the low beam radiator 4 and the high beam radiator 7 are directly abutted against the housing 1, the low beam radiator 4 and the high beam radiator 7 will directly conduct the heat to the housing 1, and the housing 1 will then conduct the heat to the outside air. Compared with the prior art in which the low-beam radiator 4 and the high-beam radiator 7 need to transfer heat to the air in the gap between them and the shell 1 before transferring heat to the shell 1, the low-beam radiator 4 and the high-beam radiator 7 in this setting transfer heat directly to the shell 1, avoiding heat conduction in the air inside the shell 1, improving the heat dissipation efficiency, and ensuring the service life of the LED module.

[0027] In this embodiment, the side of the low beam light source module 6 near the middle of the housing 1 is fixedly connected to the low beam reflector 10, the side of the high beam light source module 9 near the middle of the housing 1 is fixedly connected to the high beam reflector 11, the low beam radiator 4 is provided with a low beam radiator bracket 12, and the low beam radiator bracket 12 is fixedly connected with a light shielding plate 13 by screws, the light shielding plate 13 is bent in the middle, and the light shielding plate 13 is located above the middle of the low beam reflector 10 and the high beam reflector 11, and a lens 14 is covered on the light shielding plate 13. The low beam light source module 6 emits light, and the light is reflected by the low beam reflector 10. The bent light shielding plate adjusts the reflected light to block part of the direct light so that it does not directly shoot to the opposite vehicle to avoid glare, forming a low beam light pattern. The high beam light source module 9 emits light, which is reflected by the high beam reflector 11 to form a high beam light pattern, thereby forming a high beam light pattern and a low beam light pattern of the vehicle headlight, and the high beam and low beam light pattern can be switched according to actual needs. It should be noted that the formation of the low beam light pattern and the high beam light pattern are both existing structures and will not be repeated here.

[0028] In this embodiment, the driving plate 15 driving the low beam light source module 6 and the high beam light source module 9 is fixedly connected to the bottom of the rear cover 16, and the two are fixed by screws to achieve the stability of the device. The upper end of the rear cover 16 has a rear cover upper opening 17, and the rear cover upper opening 17 is connected to the lower opening 3 of the shell body, so as to achieve the closedness of the lower part of the shell body 1. A first sealing ring 18 is provided at the connection between the rear cover upper opening 17 and the lower opening 3 of the shell body, which can reduce the dust from entering the interior of the automobile headlamp and extend the service life of the parts in the lamp. A rear cover center hole 19 is provided at the bottom of the rear cover 16, and the connecting rod 20 of the driving plate 15 passes through the rear cover center hole 19 for connecting with the external vehicle to realize the application of the automobile headlamp on the vehicle.

[0029] In this embodiment, the lens 14 is clamped to the upper end of the lens bracket 21 so that the upper end of the lens bracket 21 is closed, and the opening 2 on the shell is provided with an inner connecting portion 22 and an outer connecting portion 23. The lens bracket 21 is fixedly connected to the inner connecting portion 22 of the shell 1 by screws so that the upper part of the shell 1 is closed. The outer cover of the lens 14 is provided with a lampshade 24, and the lampshade 24 is clamped to the upper end of the lampshade bracket 25 so that the upper part of the lampshade bracket 25 is closed. The lampshade bracket 25 is sleeved on the outside of the lens bracket 21, and the lower end of the lampshade bracket 25 is fixedly connected to the outer connecting portion 23 of the shell 1 by screws. The arrangement of the lampshade 24 and the lampshade bracket 25 protects the lens 14 and the parts inside the shell 1, and the rear cover 16, the shell 1, the lampshade bracket 25 and the lampshade 24 are connected as a whole so that the automobile headlamp is an integrally closed type, which reduces the entry of dust and other debris into the interior of the lamp, prolongs the service life of the parts inside the lamp, and makes the lamp more beautiful. A second sealing ring 26 is provided at the connection between the lampshade bracket 25 and the outer connecting portion 23 of the upper opening 2 of the housing, which further ensures the sealing of the automobile headlamp, reduces dust from entering the interior of the automobile headlamp, and ensures the service life of the components in the lamp.

[0030] In this embodiment, a rear cover reinforcement rib 27 is provided on the bottom surface of the rear cover 16, a first shell reinforcement rib 28 is provided on the outer wall of the shell 1 abutting the low beam radiator 4, and a second shell reinforcement rib 29 is provided on the outer wall of the shell 1 abutting the high beam radiator 7. By providing the reinforcement ribs, while ensuring the strength of the lamp shell 1 itself, the heat inside the shell 1 is more easily conducted to the outside air, thereby accelerating the heat dissipation.

[0031] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A closed automobile headlamp, comprising a housing, a heat sink, an LED light source module and a reflector arranged in sequence in the housing, characterized in that: The radiator includes a low-beam radiator and a high-beam radiator, the LED light source module includes a low-beam light source module and a high-beam light source module and a driving plate for driving the low-beam light source module and the high-beam light source module, the reflector includes a low-beam reflector and a high-beam reflector, the low-beam light source module is arranged between the low-beam radiator and the low-beam reflector and abuts against the low-beam radiator, the high-beam light source module is arranged between the high-beam radiator and the high-beam reflector and abuts against the high-beam radiator, and the outer side of the low-beam radiator away from the middle of the shell The wall abuts against the inner wall of the shell, the outer wall of the high-beam radiator away from the middle of the shell abuts against the inner wall of the shell, the low-beam radiator is provided with a low-beam radiator bracket, the low-beam radiator bracket is provided with a light baffle, and the light baffle is covered with a lens; after the light emitted by the low-beam light source module passes through the low-beam reflector, the reflected light is adjusted by the light baffle, and then emitted through the lens to form a low-beam light pattern; after the light emitted by the high-beam light source passes through the high-beam reflector, the reflected light is emitted through the lens to form a high-beam light pattern.

2. The enclosed automobile headlamp according to claim 1, characterized in that: A low beam radiator groove is provided on one side of the low beam radiator close to the middle of the shell, and the low beam light source module is snapped into the low beam radiator groove. A high beam radiator groove is provided on one side of the high beam radiator close to the middle of the shell, and the high beam light source module is snapped into the high beam radiator groove.

3. The enclosed automobile headlamp according to claim 1, characterized in that: The driving plate is connected to the rear cover, the rear cover is connected to the housing, and a first sealing ring is provided at the connection between the rear cover and the housing.

4. The enclosed automobile headlamp according to claim 1, characterized in that: The lens is clamped to the upper end of the lens bracket, and the lens bracket is connected to the shell.

5. The enclosed automobile headlamp according to claim 4, characterized in that: The outer cover of the lens is provided with a lampshade, the lampshade is connected to a lampshade bracket, the lampshade bracket is sleeved on the outside of the lens bracket, and the lower end of the lampshade bracket is connected to the shell.

6. The enclosed automobile headlamp according to claim 5, characterized in that: A second sealing ring is provided at the connection between the lampshade bracket and the housing.

7. The enclosed automobile headlamp according to claim 1, characterized in that: A rear cover center hole is provided at the bottom of the rear cover, and a connecting rod of the driving plate passes through the rear cover center hole for connecting with an external vehicle.

8. The enclosed automobile headlamp according to claim 1, characterized in that: The bottom surface of the rear cover is provided with a rear cover reinforcement rib, the outer side wall of the shell abutting the low beam radiator is provided with a first shell reinforcement rib, and the outer side wall of the shell abutting the high beam radiator is provided with a second shell reinforcement rib.

9. The enclosed vehicle headlamp according to any one of claims 1 to 8, characterized in that: After the rear cover, the shell, the lampshade bracket and the lampshade are connected as one, the automobile headlamp is a closed type.

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