LED automobile headlamp capable of being used as low beam and high beam

Abstract

The invention provides an LED (light-emitting diode) automobile headlamp capable of being used as low beam and high beam simultaneously, which comprises a light-emitting part for combining a low beam light source and a high beam light source and controlling the switching of the low beam and the high beam by controlling the on-off of a circuit; the light source position of the light emitting part is covered with the refraction part, so that light condensation of the light source of the light emitting part can be achieved. In the using process, the inner arc groove is formed in the end of the lamp bead base, the dipped headlight beads facing the axis of the lamp bead base are arranged on the circumference of the inner wall of the inner arc groove, light sources of the dipped headlight beads irradiate and interfere with one another after the dipped headlight beads are powered on, the emission distance of light rays is reduced, and a dipped headlight source is formed; the center high beam lamp bead capable of generating parallel light is arranged on the axis of the inner arc groove, the satellite high beam lamp beads capable of emitting parallel light are arranged on the periphery of the inner arc groove, the parallel light rays of the center high beam lamp bead and the satellite high beam lamp beads form a high beam light source, low beam and high beam can be used at the same time, and the effect of saving installation space is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile headlights, in particular to an LED automobile headlight which can be used as both a low beam and a high beam. Background Art

[0002] The headlights of a car are used to illuminate the front of the vehicle at night or when the lighting conditions are poor. Car headlights are commonly divided into low beam and high beam according to their functions and usage scenarios. Among them, low beam is used when the lighting conditions are good or when meeting other vehicles to prevent dazzle to the oncoming drivers. The high beam is mainly used to illuminate the road in the distance when the lighting conditions are poor, so that the driver can effectively observe the road conditions.

[0003] The low beam and high beam of existing cars are separated, and the high and low beams are switched by pushing the push rod on the left side of the steering wheel. This setting requires a large position in front of the vehicle, and the two sets of lights will also take up a large space when wiring. In addition, two sets of lights require two sets of protective gear, which is not conducive to controlling the cost of car manufacturing.

[0004] Therefore, the present application proposes an LED automobile headlamp which can be used as both a low beam and a high beam, and is used to combine the low beam and the high beam to reduce the space occupied by the headlamp. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an LED automobile headlamp that can be used as both a low beam and a high beam, so as to solve the problem mentioned in the prior art that the low beam and the high beam are installed at the same time and occupy space.

[0006] To achieve the above-mentioned and other related purposes, the present invention provides an LED automobile headlamp which can be used as both a low beam and a high beam, comprising:

[0007] A light emitting unit, wherein the light emitting unit combines low beam and high beam light sources, and the light emitting unit controls the switching between low beam and high beam by turning on and off a control circuit;

[0008] A refracting portion, wherein the refracting portion covers the light source position of the light emitting portion so that the light source of the light emitting portion can achieve focusing;

[0009] A protective cover covers the outer surface of the light-emitting part, and the protective cover can protect the light-emitting part and the refractive part.

[0010] Preferably, the light emitting part comprises a lamp bead holder, the axis of one end of the lamp bead holder is provided with an inner arc groove, a plurality of low-beam lamp beads distributed in an annular manner are provided along the arc surface of the inner wall of the inner arc groove, and each of the low-beam lamp beads is inclined toward the axis of the lamp bead holder;

[0011] A central high-beam lamp bead is arranged at the axis of the inner arc groove, and a plurality of satellite high-beam lamp beads are arranged around the inner arc groove at the end of the lamp bead holder, and both the central high-beam lamp bead and the satellite high-beam lamp beads are parallel light sources;

[0012] The end of the lamp bead holder is provided with an arc-shaped transparent light-transmitting lampshade covering the outer surface of the low-beam lamp bead and the center high-beam lamp bead;

[0013] The other end of the lamp bead holder is provided with an electrode pin, and the electrode pin is respectively connected to the low beam lamp bead, the central high beam lamp bead and the satellite high beam lamp bead circuit.

[0014] Preferably, the low beam lamp beads, central high beam lamp beads and satellite high beam lamp beads can all be controlled to switch individually.

[0015] Preferably, a satellite light groove adapted to the position of the satellite high-beam lamp beads is provided on the edge of the light-transmitting lampshade, and a parallel light cover is provided inside the satellite light groove, and the parallel light cover can focus the light source of the satellite high-beam lamp beads.

[0016] Preferably, the outer surface of the lamp bead holder is provided with heat dissipation fins, and a plurality of heat dissipation grooves are provided between the heat dissipation fins.

[0017] Preferably, the refraction portion comprises a spotlight cover, the spotlight cover covers the outer surface of the light-transmitting cover, and the spotlight cover is trumpet-shaped;

[0018] The inner wall of the spotlight cover is coated with a light-reflecting layer;

[0019] A flange seat is arranged at one end of the spotlight cover facing the lamp bead seat, and a fixing foot is arranged at the edge of the flange seat.

[0020] Preferably, a plurality of diffuse reflection beads are arranged on the surface of the light-collecting reflection layer along the radial direction of the light-collecting lampshade, and the diffuse reflection beads are distributed along the axial direction of the light-collecting lampshade, and the distribution length does not exceed the depth of the light-transmitting lampshade.

[0021] Preferably, a hook is provided on the edge of the flange seat, and a slot is provided on the outer surface of the protective cover. The hook and the slot cooperate to fix the protective cover to the outer surface of the spotlight cover, and a sealing structure is provided at the connection between the slot and the flange seat.

[0022] Preferably, the low beam lamp beads, central high beam lamp beads and satellite high beam lamp beads are all LED lamp beads.

[0023] Preferably, the interiors of the light-transmitting lampshade and the protective cover can be filled with neon gas.

[0024] As described above, the LED automobile headlamp of the present invention, which can be used as both a low beam and a high beam, has the following beneficial effects:

[0025] 1. The present invention arranges an inner arc groove at the end of the lamp bead holder, and arranges a low-beam lamp bead facing the axis of the lamp bead holder on the inner wall circumference of the inner arc groove. After power is turned on, the light sources of each low-beam lamp bead irradiate and interfere with each other, reducing the distance of the light to form a low-beam light source. At the same time, a central high-beam lamp bead that can cause parallel light is arranged at the axis of the inner arc groove, and a satellite high-beam lamp bead that can emit parallel light is arranged on the peripheral circumference of the inner arc groove. The high-beam light source is formed by the parallel light of the central high-beam lamp bead and the satellite high-beam lamp bead, so that it can be used as both low-beam and high-beam at the same time, thereby saving the installation space.

[0026] 2. The present invention arranges a satellite light groove on the edge of the translucent lampshade, and arranges a parallel light cover inside the satellite light groove to focus the light source of the satellite high-beam lamp beads, thereby effectively reducing the refraction of the light of the satellite high-beam lamp beads by the translucent lampshade, increasing the lighting intensity of the satellite high-beam lamp beads, and improving the lighting distance of the satellite high-beam lamp beads.

[0027] 3. The present invention arranges diffuse reflection beads on the focusing reflection layer, and uses the diffuse reflection beads to perform multiple disordered reflections on the light source emitted by the low beam lamp beads, so that the light of the low beam lamp beads produces richer diffuse reflections, and is refracted and diffused by the translucent lampshade, thereby achieving the effect of improving the low beam lighting range and reducing shadows.

[0028] Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Shown is a schematic structural diagram of the present invention.

[0030] Figure 2 Shown is an exploded view of the present invention.

[0031] Figure 3 Shown is a cross-sectional view of the structure of the refraction portion of the present invention.

[0032] Figure 4 Shown is a right view of the structure of the light-emitting portion of the present invention.

[0033] Figure 5 Shown is a structural assembly diagram of the parallel light mask of the present invention.

[0034] Figure 6 Shown is a schematic structural diagram of the refraction portion of the present invention.

[0035] Component number description:

[0036] 1. Light-emitting part; 101. Lamp bead holder; 102. Inner arc groove; 103. Low beam lamp bead; 104. Center high beam lamp bead; 105. Transparent lampshade; 106. Satellite lamp trough; 107. Parallel light cover; 108. Satellite high beam lamp bead; 109. Electrode pin; 110. Heat dissipation fin;

[0037] 2. Refraction part; 201. Spotlight cover; 202. Spotlight reflection layer; 203. Diffuse reflection beads; 204. Flange seat; 205. Fixed foot;

[0038] 3. Protective cover; 301. Card slot. DETAILED DESCRIPTION

[0039] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0040] See also Figures 1 to 6 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0041] like Figure 1-2 As shown, the present invention provides an LED automobile headlamp that can be used as both a low beam and a high beam, comprising a light-emitting part 1, a refraction part 2 and a protective cover 3. The light-emitting part 1 combines the low beam and high beam light sources together, thereby reducing the space occupied by the headlamp when it is installed and reducing the trouble of wiring. The light-emitting part 1 controls the switching between the low beam and the high beam by controlling the on and off of the circuit. The refraction part 2 covers the light source position of the light-emitting part 1, so that the light source of the light-emitting part 1 can be focused, the intensity and range of the lighting are improved, and a certain protective effect is provided to the light-emitting part 1. The protective cover 3 covers the outer surface of the light-emitting part 1, and the protective cover 3 can protect the light-emitting part 1 and the refraction part 2. The impact that the light-emitting part 1 and the refraction part 2 can be subjected to is reduced, and the light-emitting part 1 and the refraction part 2 are sealed to reduce the possibility of water vapor entering the light-emitting part 1 and the refraction part 2.

[0042] like Figure 1 , Figure 2 and Figure 4As shown, in some embodiments, the light-emitting portion 1 of the present invention includes a lamp bead holder 101, which is used to fix the light source and connect the light source to the power supply of the car. An inner arc groove 102 is provided at the axis of one end of the lamp bead holder 101, and a plurality of low-beam lamp beads 103 distributed in an annular manner are provided along the inner wall arc surface of the inner arc groove 102, and each low-beam lamp bead 103 is inclined toward the axis of the lamp bead holder 101. When the low-beam lamp beads 103 are powered on, the brightness of the low-beam lamp beads 103 irradiating each other will be superimposed on each other to increase the lighting intensity. However, because the emission direction of the light is toward the axis of the lamp bead holder 101, the irradiation distance will become shorter to form the effect of a low-beam lamp. It is used for auxiliary lighting on roads with good lighting conditions without excessively interfering with drivers traveling in the opposite direction.

[0043] A central high beam lamp bead 104 is arranged at the axis of the inner arc groove 102, and a plurality of satellite high beam lamp beads 108 are arranged around the inner arc groove 102 at the end of the lamp bead holder 101. The central high beam lamp bead 104 and the satellite high beam lamp bead 108 are both parallel light sources. When the push rod is switched to high beam, the central high beam lamp bead 104 and the satellite high beam lamp bead 108 start working, and the parallel light generated by focusing can illuminate a farther distance, achieving the effect of high beam. Among them, the central high beam lamp bead 104 with high lumen intensity is used as the main light source for illumination, and the satellite high beam lamp bead 108 is used as an auxiliary light source to increase the illumination intensity and illumination range of high beam.

[0044] The end of the lamp bead holder 101 is provided with an arc-shaped and transparent light-transmitting lampshade 105 covering the outer surface of the low-beam lamp bead 103 and the central high-beam lamp bead 104, which is used to protect the low-beam lamp bead 103 and the central high-beam lamp bead 104. When the low beam is illuminated, the light source with a large range of refraction emitted by the low-beam lamp bead 103 is refracted again through the light-transmitting lampshade 105, thereby effectively improving the illumination range of the low-beam lamp bead 103. The parallel light emitted by the central high-beam lamp bead 104 in the center is relatively less affected by the light-transmitting lampshade 105.

[0045] The other end of the lamp bead holder 101 is provided with an electrode pin 109, which is connected to the power supply on the car through a wire. The electrode pin 109 is respectively connected to the low beam lamp bead 103, the central high beam lamp bead 104 and the satellite high beam lamp bead 108 circuit.

[0046] It should be noted that the low beam lamp bead 103, the central high beam lamp bead 104 and the satellite high beam lamp bead 108 of the present invention can be controlled to switch on and off individually. By controlling the on and off of the current of different circuits, more lighting modes can be realized. For example: turning on the low beam and high beam at the same time to provide better lighting conditions; turning on only the central high beam lamp bead 104 to obtain medium-condition high beam; turning on the central high beam lamp bead 104 and the satellite high beam lamp bead 108 at the same time to obtain the best high beam lighting conditions, etc.

[0047] like Figure 5 As shown, in some embodiments, the edge of the light-transmitting lampshade 105 of the present invention is provided with a satellite light groove 106 that matches the position of the satellite high-beam lamp beads 108. By providing the satellite light groove 106, the interference of the light-transmitting lampshade 105 on the lighting of the satellite high-beam lamp beads 108 can be reduced. The parallel light generated by the satellite high-beam lamp beads 108 can be directly irradiated through the satellite light groove 106 to avoid the change of the lighting angle due to the refraction of the light-transmitting lampshade 105. The interior of the satellite light groove 106 is provided with a parallel light cover 107, and the parallel light cover 107 can focus the light source of the satellite high-beam lamp beads 108. The parallel light cover 107 provided can make the light emitted by the satellite high-beam lamp beads 108 more concentrated, thereby obtaining a longer lighting distance.

[0048] like Figure 1-Figure 3 , Figure 5 As shown, in some embodiments, the outer surface of the lamp bead holder 101 of the present invention is provided with heat dissipation fins 110, and a plurality of heat dissipation slots are provided between the heat dissipation fins 110. When the light source is powered on and emits light, high temperature will be generated accordingly, and the heat dissipation fins 110 are provided to improve the heat dissipation performance and thus the service life.

[0049] like Figure 1-Figure 2 , Figure 3 and Figure 6 As shown, in some embodiments, the refraction part 2 of the present invention includes a spotlight cover 201, and the inner wall of the spotlight cover 201 is coated with a reflective spotlight reflecting layer 202. The light emitted by the light source is concentrated by the reflection of the spotlight reflecting layer 202, thereby improving the distance and brightness of the lighting. The spotlight cover 201 covers the outer surface of the transparent lampshade 105, and the spotlight cover 201 is trumpet-shaped, which is like the spotlight barrel at the front end of a flashlight.

[0050] The end of the spotlight cover 201 facing the lamp bead holder 101 is provided with a flange seat 204, and the edge of the flange seat 204 is provided with a fixing foot 205. When installing the lamp, the lamp can be installed on the front end of the car by passing the light-transmitting lamp cover 105 through bolts.

[0051] like Figure 2-Figure 3 As shown, in some embodiments, the surface of the light-concentrating reflective layer 202 of the present invention is provided with a plurality of diffuse reflection beads 203 along the radial direction of the spotlight cover 201, and the diffuse reflection beads 203 are distributed along the axial direction of the spotlight cover 201. The purpose of providing the diffuse reflection beads 203 is to increase the complexity of light reflection, thereby reducing the lighting distance and lighting range of the low-beam lamp beads 103. Avoid the surface of the light-concentrating reflective layer 202 being too smooth to cause the concentrated light to be emitted as parallel light. The length of the diffuse reflection beads 203 distributed along the axial direction of the spotlight cover 201 does not exceed the depth of the transparent lamp cover 105, so as to avoid the diffuse reflection beads 203 from interfering with the light emitted by the satellite high-beam lamp beads 108, thereby improving the lighting effect of the satellite high-beam lamp beads 108.

[0052] like Figure 2 As shown, in some embodiments, a hook is provided at the edge of the flange seat 204 of the present invention, and a slot 301 is provided on the outer surface of the protective cover 3. The hook and the slot 301 cooperate to fix the protective cover 3 on the outer surface of the spotlight cover 201. The protective cover 3 is installed on the flange seat 204 in a detachable manner, which can facilitate the maintenance of the lamp. A sealing structure is provided at the connection between the slot 301 and the flange seat 204 to effectively prevent water droplets, fogging, and other conditions that affect lighting from appearing inside the protective cover 3. The sealing structure is selected according to the production cost, such as using glass glue, waterproof rubber strips, rubber rings, etc.

[0053] It should be noted that the low beam lamp beads 103, the central high beam lamp beads 104 and the satellite high beam lamp beads 108 of the present invention are all LED lamp beads. The service life of LED lamp beads is relatively long, and the lighting brightness and failure rate are low. This also achieves the reduction of costs and maintenance expenses. And the LED lamp beads can replace the colors of some low beam lamp beads 103 or satellite high beam lamp beads 108 according to needs. If the extension with strong penetration is replaced and used as a fog lamp, the integration of the lamp can be further improved. At this time, lamp beads of different colors need to be controlled separately.

[0054] At the same time, neon gas can be filled inside the light-transmitting lampshade 105 and the protective cover 3 of the present invention. Filling neon gas inside the light-transmitting lampshade 105 and the protective cover 3 can effectively increase the lighting effect. In addition, the air pressure of the neon gas can effectively prevent the external humid gas from entering the light-transmitting lampshade 105 and the protective cover 3 to cause fogging and water droplets.

[0055] In summary, the LED automobile headlamp of the present invention can be used as both low beam and high beam, by setting an inner arc groove 102 at the end of the lamp bead holder 101, and setting a low beam lamp bead 103 facing the axis of the lamp bead holder 101 on the inner wall circumference of the inner arc groove 102. After power is turned on, the light sources of each low beam lamp bead 103 irradiate and interfere with each other, reducing the range of light to form a low beam light source. At the same time, a central high beam lamp bead 104 that can produce parallel light is set at the axis of the inner arc groove 102, and a satellite high beam lamp bead 108 that can emit parallel light is set on the peripheral circumference of the inner arc groove 102. A high beam light source is formed by the parallel light of the central high beam lamp bead 104 and the satellite high beam lamp bead 108, so that it can be used as low beam and high beam at the same time, thereby achieving the effect of saving installation space.

[0056] The present invention sets a satellite light groove 106 on the edge of the translucent lampshade 105, and sets a parallel light cover 107 inside the satellite light groove 106 to focus the light source of the satellite high beam lamp beads 108, thereby effectively reducing the refraction of the light of the satellite high beam lamp beads 108 by the translucent lampshade 105, increasing the lighting intensity of the satellite high beam lamp beads 108, and improving the lighting distance of the satellite high beam lamp beads 108.

[0057] By arranging diffuse reflection beads 203 on the focusing reflection layer 202, the diffuse reflection beads 203 reflect the light source emitted by the low beam lamp beads 103 multiple times in a disordered manner, so that the light of the low beam lamp beads 103 produces richer diffuse reflection and is refracted and diffused by the transparent lampshade 105, thereby achieving the effect of improving the low beam lighting range and reducing shadows.

[0058] Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0059] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An LED automobile headlamp that can be used as both a low beam and a high beam, characterized in that: include: A light emitting unit (1), wherein the light emitting unit (1) combines a low beam light source and a high beam light source, and the light emitting unit (1) controls the switching between the low beam and the high beam by turning on and off a control circuit; A refraction portion (2), the refraction portion (2) covering the light source position of the light emitting portion (1), so that the light source of the light emitting portion (1) can be focused; A protective cover (3) covers the outer surface of the light-emitting portion (1), and the protective cover (3) can protect the light-emitting portion (1) and the refractive portion (2).

2. The LED automobile headlamp that can be used as both low beam and high beam according to claim 1, characterized in that: The light-emitting portion (1) comprises a lamp bead seat (101), the axis of one end of the lamp bead seat (101) being provided with an inner arc groove (102), a plurality of low-beam lamp beads (103) distributed in an annular manner are provided along the inner wall arc surface of the inner arc groove (102), and each of the low-beam lamp beads (103) is inclined toward the axis of the lamp bead seat (101); A central high-beam lamp bead (104) is arranged at the axis of the inner arc groove (102), and a plurality of satellite high-beam lamp beads (108) are arranged around the inner arc groove (102) at the end of the lamp bead holder (104), wherein both the central high-beam lamp bead (104) and the satellite high-beam lamp beads (108) are parallel light sources; An arc-shaped and transparent light-transmitting lampshade (105) is provided at the end of the lamp bead holder (101) and covers the outer surfaces of the low-beam lamp bead (103) and the central high-beam lamp bead (104); The other end of the lamp bead holder (101) is provided with an electrode pin (109), and the electrode pin (109) is respectively connected to the circuits of the low-beam lamp bead (103), the central high-beam lamp bead (104), and the satellite high-beam lamp bead (108).

3. The LED automobile headlamp that can be used as both low beam and high beam according to claim 2, characterized in that: The low-beam lamp bead (103), the central high-beam lamp bead (104) and the satellite high-beam lamp bead (108) can all be controlled to switch on and off individually.

4. The LED automobile headlamp that can be used as both low beam and high beam according to claim 2, characterized in that: The edge of the light-transmitting lampshade (105) is provided with a satellite light groove (106) adapted to the position of the satellite high-beam lamp bead (108), and the interior of the satellite light groove (106) is provided with a parallel light cover (107), and the parallel light cover (107) can focus the light source of the satellite high-beam lamp bead (108).

5. The LED automobile headlamp that can be used as both low beam and high beam according to claim 2, characterized in that: The outer surface of the lamp bead holder (101) is provided with heat dissipation fins (110), and a plurality of heat dissipation grooves are provided between the heat dissipation fins (110).

6. The LED automobile headlamp that can be used as both low beam and high beam according to claim 2, characterized in that: The refraction portion (2) comprises a spotlight cover (201), the spotlight cover (201) covers the outer surface of the light-transmitting cover (105), and the spotlight cover (201) is trumpet-shaped; The inner wall of the spotlight cover (201) is coated with a light-reflecting spotlight reflecting layer (202); A flange seat (204) is provided at one end of the spotlight cover (201) facing the lamp bead seat (101), and a fixing foot (205) is provided at the edge of the flange seat (204).

7. The LED automobile headlamp that can be used as both a low beam and a high beam according to claim 6, characterized in that: A plurality of diffuse reflection beads (203) are arranged on the surface of the light-collecting reflection layer (202) along the radial direction of the light-collecting lampshade (201); the diffuse reflection beads (203) are distributed along the axial direction of the light-collecting lampshade (201), and the distribution length does not exceed the depth of the light-transmitting lampshade (105).

8. The LED automobile headlamp that can be used as both low beam and high beam according to claim 6, characterized in that: The edge of the flange seat (204) is provided with a hook, and the outer surface of the protective cover (3) is provided with a slot (301), the hook and the slot (301) cooperate to fix the protective cover (3) on the outer surface of the spotlight cover (201), and a sealing structure is provided at the connection between the slot (301) and the flange seat (204) for sealing.

9. The LED automobile headlamp that can be used as both a low beam and a high beam according to any one of claims 2 to 4, characterized in that: The low-beam lamp beads (103), the central high-beam lamp beads (104) and the satellite high-beam lamp beads (108) are all LED lamp beads.

10. The LED automobile headlamp that can be used as both a low beam and a high beam according to any one of claims 2 to 8, characterized in that: The interiors of the light-transmitting lampshade (105) and the protective cover (3) can be filled with neon gas.

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