Automobile headlamp structure

Abstract

The utility model discloses an automobile headlamp structure, which belongs to the technical field of lamps and comprises a shell, an LED lamp panel is arranged in the shell, one side of the LED lamp panel is connected with a heat conduction pipe, lamp beads are mounted on the LED lamp panel, a cavity is arranged in the shell, a heat dissipation fan is mounted in the cavity, a heat dissipation piece is arranged on one side of the heat dissipation fan, and the heat dissipation piece is arranged between the LED lamp panel and the heat dissipation fan. According to the automobile headlamp structure, the heat dissipation piece is arranged between the heat dissipation fan and the LED lamp panel, heat generated by the lamp beads can be conducted into the heat dissipation piece through the LED lamp panel and the heat conduction pipe at the position, heat generated by the heat dissipation piece can be conducted into the heat dissipation piece through the heat conduction pipe, and heat generated by the heat dissipation piece can be dissipated into the heat dissipation piece through the heat conduction pipe. In addition, air can directly act on the heat dissipation piece through the heat dissipation fan, heat is brought out from the air outlet holes, the size of the shell of the automobile headlamp structure is small, the automobile headlamp structure is suitable for being installed on various automobile types, the heat dissipation structure is optimized, and the heat dissipation effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lamps, and more specifically, relates to a structure of an automotive headlamp. Background Art

[0002] With the rapid development of automotive intelligence and lighting technology nowadays, the usage requirements of users have gradually increased. LED lamps are increasingly used in automotive headlamps to replace traditional xenon lamps. Compared with traditional xenon lamps, LED automotive headlamps have the advantages of stable operation, energy conservation and environmental protection. However, their volume is relatively large, and there is a problem that they cannot be installed in some models with limited space structures. The heat dissipation structure of LED headlamps is complex and the heat dissipation performance is poor, resulting in a large amount of heat generation. At the same time, the drive system adopts an external design, which not only increases the volume of the lamp body, but also requires additional wiring between the heat dissipation fan, which not only restricts the layout of space and lines, but also affects the aesthetics of the lamp. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a structure of an automotive headlamp with a small volume to solve the problems in the above background art.

[0004] According to the first aspect of the utility model, there is provided a structure of an automotive headlamp, including a housing. An LED lamp board is arranged in the housing. One side of the LED lamp board is connected to a heat conduction tube. Lamp beads are installed on the LED lamp board. A cavity is provided in the housing, and a heat dissipation fan is installed in the cavity. A heat dissipation member is arranged on one side of the heat dissipation fan, and the heat dissipation member is arranged between the LED lamp board and the heat dissipation fan. The LED lamp board, the heat conduction tube and the heat dissipation member are connected. An air outlet hole is formed in the middle of the housing, and the air outlet hole is arranged between the lamp beads and the heat dissipation member.

[0005] In a specific embodiment of the utility model, a drive board is arranged on the other side of the heat dissipation fan, and the drive board is connected to the LED lamp board through a flexible circuit board.

[0006] In a specific embodiment of the utility model, a power supply base is fixedly connected to one end of the housing away from the lamp beads. The drive board is fixedly arranged in the power supply base, and the flexible circuit board is fixedly arranged on the inner wall of the housing and the inner wall of the power supply base.

[0007] In a specific embodiment of the utility model, the heat dissipation member includes a copper column and heat dissipation fins formed by bending a plurality of aluminum sheets. The heat dissipation fins are welded to the outer periphery of the copper column, and the LED lamp board, the heat conduction tube are connected to the copper column.

[0008] In a specific embodiment of the present utility model, a groove is provided at one end of the copper column close to the LED lamp board, and the LED lamp board is inserted into the groove for fixed connection. A connection hole adapted to the heat conduction tube is provided on the copper column, and the connection hole communicates with the groove.

[0009] In a specific embodiment of the present utility model, a plurality of heat dissipation holes are provided on the copper column.

[0010] In a specific embodiment of the present utility model, the air outlet end of the heat dissipation fan faces the heat dissipation member.

[0011] In a specific embodiment of the present utility model, the housing includes a left housing and a right housing, and the left housing and the right housing are snap-connected to each other.

[0012] At least one of the following advantages or beneficial effects is achieved by one of the technical solutions in the above technical solutions of the present utility model:

[0013] In the structure of this automotive headlamp, the heat dissipation member is arranged between the heat dissipation fan and the LED lamp board. This position can not only conduct the heat generated by the lamp beads through the LED lamp board and the heat conduction tube to the heat dissipation member, but also directly apply the air volume to the heat dissipation member through the heat dissipation fan, and take out the heat from the air outlet hole. The housing of this automotive headlamp structure is small in volume, suitable for installation on various vehicle types, optimizes the heat dissipation structure, and improves the heat dissipation effect. Description of the Drawings

[0014] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0015] Figure 1 is a schematic structural diagram of an automotive headlamp in an embodiment of the present utility model;

[0016] Figure 2 is an exploded structural diagram of an automotive headlamp in an embodiment of the present utility model;

[0017] Figure 3 is a schematic structural diagram of a heat dissipation member in an embodiment of the present utility model;

[0018] Figure 4 is a cross-sectional view of an automotive headlamp in an embodiment of the present utility model. Detailed Embodiment

[0019] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0020] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0021] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, above, below, within, etc. are understood as including the present number. If the first and second are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, or a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection or a connection that can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication, indirect communication or the interaction relationship between two elements of two elements.

[0024] The following disclosure provides many different embodiments or examples for implementing different solutions of the present utility model.

[0025] Referring to Figures 1 to 4 As shown, a structure of an automotive headlight is provided, including a housing 1. An LED lamp board 3 is arranged inside the housing 1. One side of the LED lamp board 3 is connected to a heat conduction tube 6. Lamp beads 2 are installed on the LED lamp board 3. A cavity 11 is provided inside the housing 1. A cooling fan 5 is installed inside the cavity 11. A heat dissipation member 4 is arranged on one side of the cooling fan 5. The heat dissipation member 4 is arranged between the LED lamp board 3 and the cooling fan 5. The LED lamp board 3, the heat conduction tube 6 and the heat dissipation member 4 are connected. An air outlet hole 12 is formed in the middle of the housing 1. The air outlet hole 12 is arranged between the lamp beads 2 and the heat dissipation member 4.

[0026] In this embodiment, the heat generated by the lamp beads 2 is conducted to the heat dissipation member 4 through the heat conduction tube 6 and the LED lamp board 3. Through the conduction of the heat conduction tube 6 and the LED lamp board 3, the heat can be quickly transferred to the heat dissipation member 4 for heat dissipation. A heat dissipation fan 5 is installed on one side of the heat dissipation member 4. The air volume blown by the heat dissipation fan 5 directly acts on the heat dissipation member 4 and then is discharged through the air outlet holes 12. The volume of the housing 1 is small, which is suitable for installation on various vehicle types. At the same time, the heat dissipation structure is optimized, and the heat dissipation effect is improved.

[0027] In one embodiment of the present utility model, a driving board 7 is provided on the other side of the heat dissipation fan 5. The driving board 7 is connected to the LED lamp board 3 through a flexible circuit board 8. One end of the housing 1 away from the lamp beads 2 is fixedly connected with a power supply base 9. The driving board 7 is fixedly arranged in the power supply base 9. The flexible circuit board 8 is fixedly arranged on the inner walls of the housing 1 and the power supply base 9. The driving board 7 and the power supply base 9 are fixed by welding. The power supply base 9 and the housing 1 are fixed by bolts, so as to ensure the relative relationship of the assembly positions of the entire structure, so that the wind force generated by the heat dissipation fan 5 can effectively act on the heat dissipation member 4. The LED lamp board 3 is connected to the driving board 7 through the flexible circuit board 8. The flexible circuit board 8 is fixed on the inner walls of the housing 1 and the power supply base 9 to prevent it from shaking. The flexible circuit board 8 is used because it occupies a small volume and can release more space for the fan blades of the heat dissipation fan 5, so that a heat dissipation fan with larger fan blades can be selected to achieve a better heat dissipation effect.

[0028] In one embodiment of the present utility model, the heat dissipation member 4 includes copper columns 41 and heat dissipation fins 42 formed by bending a plurality of aluminum sheets. The heat dissipation fins 42 are welded to the outer periphery of the copper columns 41. The plurality of aluminum sheets are evenly arranged, which increases the heat dissipation area of the heat dissipation fins 42 and the heat dissipation effect is better. The LED lamp board 3, the heat conduction tube 6 are connected to the copper columns 41. The LED lamp board 3 and the heat conduction tube 6 are fixed to the copper columns 41 by riveting or welding; further, a groove 411 is opened at one end of the copper column 41 close to the LED lamp board 3, and the LED lamp board 3 is inserted into the groove 411 for fixed connection. A connection hole 412 adapted to the heat conduction tube 6 is opened on the copper column 41. The connection hole 412 is communicated with the groove 411. The copper column 41 is inserted into the connection hole 412, and together with the LED lamp board 3, the heat of the lamp beads 2 is transferred to the copper column 41, and then transferred from the copper column 41 to the heat dissipation fins 42 for heat dissipation.

[0029] Preferably, a plurality of heat dissipation holes 413 are opened on the copper column 41 to further increase the heat dissipation area and the heat dissipation effect of the copper column 41.

[0030] In one embodiment of the present utility model, the air outlet end of the heat dissipation fan 5 is arranged facing the heat dissipation member 4. The heat dissipation fan 5 blows air towards the heat dissipation member 4 without any obstruction. The air volume directly acts on the heat dissipation fins 42 to improve the heat dissipation effect.

[0031] In one embodiment of the present utility model, the housing 1 includes a left housing 13 and a right housing 14. The left housing 13 and the right housing 14 are snap-connected to each other to enclose the LED lamp board and the heat dissipation member 4. Light holes for exposing the lamp beads 2 are formed on both the left housing 13 and the right housing 14.

[0032] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A vehicle headlight structure, comprising a housing (1), characterized in that: An LED light board (3) is arranged in the shell (1), one side of the LED light board (3) is connected to the heat pipe (6), a lamp bead (2) is installed on the LED light board (3), a cavity (11) is arranged in the shell (1), a cooling fan (5) is installed in the cavity (11), a heat sink (4) is arranged on one side of the cooling fan (5), the heat sink (4) is arranged between the LED light board (3) and the cooling fan (5), the LED light board (3) and the heat pipe (6) are connected to the heat sink (4), an air outlet (12) is opened in the middle of the shell (1), and the air outlet (12) is arranged between the lamp bead (2) and the heat sink (4).

2. The automobile headlight structure according to claim 1, characterized in that: A driving board (7) is provided on the other side of the cooling fan (5), and the driving board (7) is connected to the LED light board (3) via a flexible circuit board (8).

3. The automobile headlight structure according to claim 2, characterized in that: One end of the housing (1) away from the lamp bead (2) is fixedly connected to a power base (9), the drive board (7) is fixedly arranged in the power base (9), and the flexible circuit board (8) is fixedly arranged on the inner wall of the housing (1) and the inner wall of the power base (9).

4. The automobile headlight structure according to claim 1, characterized in that: The heat sink (4) comprises a copper column (41) and heat sink fins (42) formed by bending a plurality of aluminum sheets; the heat sink fins (42) are welded to the outer periphery of the copper column (41); and the LED lamp board (3) and the heat conducting pipe (6) are connected to the copper column (41).

5. The automobile headlight structure according to claim 4, characterized in that: A groove (411) is provided at one end of the copper column (41) close to the LED light board (3), and the LED light board (3) is inserted into the groove (411) for fixed connection. A connection hole (412) adapted to the heat pipe (6) is provided on the copper column (41), and the connection hole (412) is communicated with the groove (411).

6. The automobile headlamp structure according to claim 4, characterized in that: The copper column (41) is provided with a plurality of heat dissipation holes (413).

7. The automobile headlight structure according to claim 1, characterized in that: The air outlet end of the heat dissipation fan (5) is arranged toward the heat dissipation element (4).

8. The automobile headlight structure according to claim 1, characterized in that: The housing (1) comprises a left housing (13) and a right housing (14), and the left housing (13) and the right housing (14) are buckled and connected to each other.

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