LED automotive headlamp

Abstract

The utility model relates to the technical field of automobile lamps, in particular to an LED (light-emitting diode) automotive headlamp, which is characterized by comprising a light source plate, a light guide plate and a light source, the number of the lamp poles is two, the two lamp poles are oppositely arranged, the light source plate is arranged between the two lamp poles, notches matched with the lamp beads are formed in the two lamp poles, and the two lamp poles are fixedly connected with the light source plate through fixing pieces; the two outer shells are arranged at the bottoms of the two lamp poles correspondingly, the two outer shells are arranged in a matched mode, and cavities are formed in the two outer shells; the driving power supply is arranged in the cavity, and the light source plate is welded on the driving power supply; the cooling fan is arranged in the cavity and is in transmission connection with the driving power supply; and the input line penetrates through the side wall of the shell and is fixedly connected with the driving power supply. The LED lamp has the advantages that the light-emitting range is enlarged, and the lamp structure is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lamps, and more specifically, to an LED vehicle headlamp. Background Art

[0002] Headlamps, also known as front headlights, refer to lighting devices installed on both sides of the head of a car for nighttime driving. The lighting effect of headlamps directly affects the operation and traffic safety of nighttime driving, and mainly include halogen headlamps, xenon headlamps and LED headlamps. LED lamps have the advantages of energy saving, environmental protection, long service life and high brightness. With the continuous development of LED technology and automotive systems, more and more automotive headlamps are using LED lamps to replace traditional xenon lamps.

[0003] Current LED headlamps have the following defects: in order to ensure the realization of high-power products, the heat sink is large in size, and the driver is also relatively large in size to ensure heat dissipation during operation, making it difficult to install in the compact lamps in the engine compartment. As a result, although the brightness of such LED headlamps is strong, the light pattern is poor. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an LED vehicle headlamp, which has the advantages of expanding the light-emitting range and optimizing the lamp structure.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions, an LED vehicle headlamp, comprising:

[0006] A light source board, on which lamp beads are mounted;

[0007] There are two lamp poles, the two lamp poles are arranged opposite to each other, the light source board is arranged between the two lamp poles, both of the two lamp poles are provided with notches matching with the lamp beads, and are fixedly connected to the light source board through fixing parts;

[0008] Two shells are provided, which are respectively arranged at the bottom of the two lamp poles, the two shells are arranged in coordination, and a cavity is formed in the two shells;

[0009] A driving power source is installed in the cavity, and the light source board is welded to the driving power source;

[0010] A cooling fan is installed in the cavity and is drivingly connected to the driving power source;

[0011] An input line passes through the side wall of the housing and is fixedly connected to the driving power source.

[0012] In one of the embodiments, the light source board is a double-sided thick copper board.

[0013] In one embodiment, the lamp pole and the housing are integrally formed.

[0014] In one of the embodiments, a chuck is sleeved on the outside of the two lamp poles for fixing the two lamp poles.

[0015] In one of the embodiments, a groove is formed on the inner side of the lamp pole for accommodating the light source panel.

[0016] In one embodiment, the fixing member is a fixing screw, the lamp pole and the light source board are both provided with matching openings, and the fixing screw is screwed on the opening to fix the lamp pole and the light source board.

[0017] In one of the embodiments, a plurality of heat dissipation slots are provided on the housing, and the plurality of heat dissipation slots are arranged at intervals.

[0018] In one of the embodiments, a slot is horizontally opened on the inner wall of the housing, and the cooling fan is mounted on the slot.

[0019] In one of the embodiments, a baffle is installed at the bottom of the housing.

[0020] In one of the embodiments, the baffle is provided with first vent holes at intervals, and the slot is provided with a plurality of second vent holes at intervals, and the plurality of first vent holes and the plurality of second vent holes correspond to each other one by one.

[0021] The above-mentioned LED vehicle headlamp has the following beneficial effects:

[0022] Firstly, the utility model reduces the position of lamp beads blocking by opening a notch on the lamp pole, thereby making the headlamp's luminous range wider and optimizing the light pattern;

[0023] Secondly, by installing the light source board, driving power supply and cooling fan inside the headlamp, the lamp body is simplified, the installation volume of the headlamp is reduced, and the lamp structure is optimized;

[0024] Thirdly, the lamp pole and the outer shell are combined in half, and the driving power supply is installed in the cavity, without the need for a driving power box and a power connection line. The cooling fan is clamped on the card slot, and there is no need to use a fan cover and fan fixing screws for fixing, which reduces parts, reduces material prices, saves assembly time, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the assembly relationship of this embodiment;

[0026] Figure 2 It is a structural schematic diagram of this embodiment;

[0027] Figure 3 yes Figure 2 Sectional view of plane A-A;

[0028] Figure 4 Schematic diagram of the connection between the lamp pole and the housing in this embodiment.

[0029] In the figure: 1, light source board; 11, lamp beads; 2, lamp pole; 21, notch; 22, groove; 3, shell; 31, cavity; 32, positioning block; 33, heat dissipation slot; 34, slot; 341, second vent; 35, baffle; 351, first vent; 4, driving power supply; 5, cooling fan; 6, input line; 7, fixing piece; 8, chuck; 9, opening. DETAILED DESCRIPTION

[0030] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] An LED vehicle headlamp, such as Figure 1 and Figure 2 As shown, it includes: a light source board 1, two lamp poles 2, two housings 3, a driving power supply 4, a cooling fan 5 and an input line 6;

[0036] Among them, a lamp bead 11 is installed on the light source board 1; two lamp poles 2 are arranged opposite to each other, the light source board 1 is arranged between the two lamp poles 2, and the two lamp poles 2 are provided with a notch 21 that matches the lamp bead 11, and are fixedly connected to the light source board 1 through a fixing piece 7; two outer shells 3 are respectively arranged at the bottom of the two lamp poles 2, the two outer shells 3 are matched, and a cavity 31 is formed in the two outer shells 3; the driving power supply 4 is arranged in the cavity 31, and the light source board 1 is welded to the driving power supply 4; the cooling fan 5 is arranged in the cavity 31, and is transmission-connected to the driving power supply 4; the input line 6 passes through the side wall of the outer shell 3, and is fixedly connected to the driving power supply 4.

[0037] The utility model provides a notch 21 on the lamp pole 2 to reduce the position blocked by the lamp beads 11, so that the luminous range of the headlamp is wider, the light type is optimized, and it also has a unique aesthetic appearance; the light source board 1, the driving power supply 4 and the cooling fan 5 are arranged inside the headlamp, and the light source board 1 and the driving power supply 4 are welded together and the driving is built-in, which reduces the space for placing the driving power supply 4 separately outside the lamp body, and there is no need to use a power box and a power connection line, so the lamp body is simplified, the lamp structure is optimized, and the installation volume of the headlamp is reduced.

[0038] like Figure 1 As shown, in this embodiment, a through opening is provided on the housing 3, and a positioning block 32 is installed on the through opening. The input line 6 passes through the positioning block 32 and is connected to the driving power source 4 to prevent the input line 6 from falling off.

[0039] Specifically, the light source board 1 is a double-sided thick copper board, which is conducive to better heat dissipation of the lamp beads 11.

[0040] Specifically, Figure 1 and Figure 4 As shown, the lamp pole 2 and the housing 3 are designed as an integral molding. The two lamp poles 2 and the two housings 3 are combined in half, which saves installation costs.

[0041] Specifically, Figure 2 As shown, a chuck 8 is sleeved on the outside of the two lamp poles 2 to further fix the two lamp poles 2 .

[0042] Specifically, Figure 4 As shown, a groove 22 is formed on the inner side of the lamp pole 2 for accommodating the light source board 1 .

[0043] Specifically, Figure 1 and Figure 2 As shown, the fixing member 7 is a fixing screw, and the lamp pole 2 and the light source board 1 are provided with matching openings 9, and the fixing screw is screwed on the opening 9 to fix the lamp pole 2 and the light source board 1. In this embodiment, two fixing screws are provided, and matching openings 9 are also provided at both ends of the lamp pole 2 and the light source board 1. By screwing the fixing screws on the openings 9, the lamp pole 2 and the light source board 1 can be better fixed.

[0044] Specifically, Figure 2 and Figure 4 As shown, the housing 3 is provided with a plurality of heat dissipation slots 33, and the plurality of heat dissipation slots 33 are arranged at intervals. The arrangement of the plurality of hollow heat dissipation slots 33 facilitates better heat dissipation of the lamp body.

[0045] Specifically, Figure 3 As shown, the inner wall of the housing 3 is horizontally provided with a slot 34, and the cooling fan 5 is clamped on the slot 34. The cooling fan 5 is fixed by the slot 34 without using a fan cover and a fan fixing screw, thereby reducing parts, reducing material prices, saving assembly time, and reducing production costs.

[0046] Further, such as Figure 3 and Figure 4 As shown, a baffle 35 is installed at the bottom of the housing 3. The baffle 35 can be used to prevent the components in the cavity 31 from falling, and is used to further fix the cooling fan 5 and the driving power supply 4.

[0047] Further, such as Figure 4 As shown, the baffle 35 is provided with first vents 351 at intervals, and the slot 34 is provided with a plurality of second vents 341 at intervals. The plurality of first vents 351 and the plurality of second vents 341 correspond to each other one by one, and the arrangement of the plurality of first vents 351 and the plurality of second vents 341 can improve the heat dissipation efficiency. In this embodiment, the heat dissipation slot 33 is connected with the first vents 351 and the second vents 341 to further improve the heat dissipation efficiency.

[0048] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An LED vehicle headlamp, characterized in that: include: A light source board, on which lamp beads are mounted; There are two lamp poles, the two lamp poles are arranged opposite to each other, the light source board is arranged between the two lamp poles, both of the two lamp poles are provided with notches matching with the lamp beads, and are fixedly connected to the light source board through fixing parts; Two shells are provided, which are respectively arranged at the bottom of the two lamp poles, the two shells are arranged in coordination, and a cavity is formed in the two shells; A driving power source is installed in the cavity, and the light source board is welded to the driving power source; A cooling fan is installed in the cavity and is drivingly connected to the driving power source; An input line passes through the side wall of the housing and is fixedly connected to the driving power source.

2. The LED vehicle headlamp according to claim 1, characterized in that: The light source board is a double-sided thick copper board.

3. The LED vehicle headlamp according to claim 1, characterized in that: The lamp pole and the shell are designed to be integrally formed.

4. The LED vehicle headlamp according to claim 1, characterized in that: The exteriors of the two lamp poles are also sleeved with chucks for fixing the two lamp poles.

5. The LED vehicle headlamp according to claim 1, characterized in that: A groove is formed on the inner side of the lamp pole for accommodating the light source panel.

6. The LED vehicle headlamp according to claim 1, characterized in that: The fixing member is a fixing screw, and the lamp pole and the light source board are both provided with matching openings, and the fixing screw is screwed on the opening to fix the lamp pole and the light source board.

7. The LED vehicle headlamp according to claim 1, characterized in that: The shell is provided with a plurality of heat dissipation slots, and the plurality of heat dissipation slots are arranged at intervals.

8. The LED vehicle headlamp according to claim 1, characterized in that: The inner wall of the shell is horizontally provided with a slot, and the heat dissipation fan is clamped on the slot.

9. The LED vehicle headlamp according to claim 8, characterized in that: A baffle is arranged at the bottom of the shell.

10. The LED vehicle headlamp according to claim 9, characterized in that: The baffle is provided with first vent holes at intervals, and the slot is provided with a plurality of second vent holes at intervals, and the plurality of first vent holes and the plurality of second vent holes correspond to each other one by one.

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