A headlamp and an electric vehicle

Abstract

This utility model relates to a headlight and an electric vehicle, comprising: a lamp housing, which is a groove-shaped structure with an opening on one side, and a rear mounting base is fixedly installed at the opening, forming a closed space between the lamp housing and the rear mounting base to accommodate a lamp core assembly; an inner heat sink, located inside the lamp housing and rotatably mounted on the rear mounting base, with a second arc surface formed at one end; the rear mounting base has a first arc surface corresponding to the second arc surface, and the first arc surface and the second arc surface are always in contact when the inner heat sink rotates; a lamp core assembly, mounted on the inner heat sink; and an adjusting rod, one end of which is located outside the rear mounting base, and the other end of which passes through the rear mounting base and connects to the inner heat sink, driving the inner heat sink and rotating the lamp core assembly by adjusting the adjusting rod. Several fins of the inner heat sink and several fins of the rear mounting base are always in contact, forming a double-layer heat dissipation structure, improving the heat dissipation efficiency of the headlight, meeting the heat dissipation requirements of high-power vehicle lights, and ensuring stable operation of the vehicle light.

Description

Technical Field

[0001] This utility model belongs to the field of electric vehicle lighting technology, and relates to heat dissipation of vehicle lights, especially a headlight and electric vehicle. Background Technology

[0002] With the development of travel needs, electric vehicles are equipped with fixed headlights on the front for nighttime illumination, facilitating user travel. To improve user comfort, the power requirements of these headlights are increasing, resulting in greater heat generation. Existing headlight cooling structures are inadequate for these needs, leading to low heat dissipation efficiency and making the headlights prone to damage. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a headlight and electric vehicle with a simple structure and efficient heat dissipation.

[0004] To solve the above problems, the technical solution of this utility model is as follows:

[0005] A headlight, comprising:

[0006] The lamp housing is a slotted structure with an opening on one side, and a rear mounting base is fixed at the opening. The lamp housing and the rear mounting base form a closed space to accommodate the lamp core assembly.

[0007] An internal heat sink is located inside the lamp housing and is rotatably mounted on the rear mounting base. One end of the heat sink has a second arc surface. The rear mounting base has a first arc surface corresponding to the second arc surface. When the internal heat sink rotates, the first arc surface and the second arc surface are always in contact.

[0008] The lamp core assembly is mounted on the inner heat sink;

[0009] The adjusting rod has one end located outside the rear mounting base, and the other end passes through the rear mounting base and connects to the inner heat sink. Adjusting the adjusting rod drives the inner heat sink to rotate the lamp core assembly.

[0010] In a further embodiment, a plurality of mounting fins are spaced apart on the rear mounting base, and the inner ends of the plurality of mounting fins protrude from the inner end face of the rear mounting base to form a first adjustment portion, the inner surface of the first adjustment portion being a first arc surface.

[0011] The internal heat sink has several fins spaced apart.

[0012] In a further embodiment, one end of the inner heat sink is provided with an upwardly protruding second adjustment portion, and the side surface of the second adjustment portion is a second arc surface.

[0013] In a further embodiment, a third adjustment part is provided at the bottom end of the inner heat sink, and the inner end of the adjustment rod is threadedly connected to the third adjustment part.

[0014] In a further embodiment, side mounting plates are fixedly installed on both sides of the first adjustment part, and fasteners are fixedly installed on the side mounting plates.

[0015] In a further embodiment, heat sink shafts are respectively formed on both sides of the inner heat sink, and the heat sink shafts are rotatably mounted between the side mounting plate and the fixing member.

[0016] In a further embodiment, the adjusting rod is provided with an anti-detachment ring, which is located inside the rear mounting seat and is adapted to prevent the adjusting rod from detaching from the rear mounting seat.

[0017] In a further embodiment, a buckle is fitted onto the third adjusting part, and the inner end of the adjusting rod is threadedly connected to the buckle.

[0018] In a further embodiment, the lamp core assembly includes a first circuit board and a second circuit board. The first circuit board and the second circuit board are fixedly mounted on the upper and lower sides of the inner heat sink, respectively. A plurality of lamp beads and a reflector are fixedly mounted on the first circuit board.

[0019] Inside the lamp housing, a lens mounting base corresponding to the reflector bowl is also fixedly installed. A lens is fixedly installed at the front end of the lens mounting base, which reflects the light emitted by the lamp beads onto the lens. The light passes through the lens and the lamp housing to emit light.

[0020] An electric vehicle equipped with a headlight.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. The rear mounting base of this headlight has several mounting fins spaced apart, and the inner side of the mounting fins is a first arc surface; the inner heat sink is rotatably mounted on the rear mounting base, and the rear end side of the inner heat sink is a second arc surface. When the inner heat sink rotates, the first arc surface and the second arc surface are always in contact, so that the fins of the inner heat sink and the mounting fins of the rear mounting base are always in contact, forming a double-layer heat dissipation structure, improving the heat dissipation efficiency of the headlight, meeting the heat dissipation requirements of high-power vehicle lights, and ensuring the stable operation of the vehicle lights.

[0023] 2. An adjusting rod is inserted through the bottom end of the rear mounting bracket of this headlight. An anti-detachment ring is fixedly installed on the outer end of the adjusting rod. The anti-detachment ring is located inside the rear mounting bracket to prevent the adjusting rod from falling off the rear mounting bracket during rotation. The bottom end of the inner heat sink has a downward protruding third adjusting part. A buckle is engaged on the third adjusting part. The inner end of the adjusting rod is threaded into the buckle. When the adjusting rod is rotated, the buckle moves on the adjusting rod, thereby driving the inner heat sink, the first circuit board, the reflector bowl and the lens to finely adjust the angle, thereby adjusting the direction of light. This allows the headlight to adjust the direction of light according to usage needs, improving the user experience. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a cross-section of a headlight;

[0025] Figure 2 This is a rear view of a headlight;

[0026] Figure 3 This is a schematic diagram of the internal structure of a headlight.

[0027] In the diagram: 1. Lamp housing; 11. First housing; 12. Second housing; 2. Rear mounting base; 21. First adjustment part; 211. First arc surface; 22. Mounting base fins; 23. Adjustment hole; 24. Side mounting plate; 25. Fixing component; 3. Inner heat sink; 31. Second arc surface; 32. Second adjustment part; 33. Heat sink pivot; 34. Third adjustment part; 4. First circuit board; 5. Adjustment rod; 51. Anti-detachment ring; 52. Buckle; 6. Second circuit board; 7. Reflector bowl; 8. Lens mounting base; 81. Inner lens mounting base; 82. Outer lens mounting base; 9. Lens. Detailed Implementation

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] Example 1:

[0030] A type of headlight, such as Figures 1 to 3As shown, the lamp includes a lamp housing 1 and a rear mounting base 2. The lamp housing 1 is a near-rectangular structure with an opening on one side, and the rear mounting base 2 is fixedly installed at the opening. A closed space is formed between the lamp housing 1 and the rear mounting base 2, and various components of the headlight are installed within the closed space. The lamp housing 1 includes a first housing 11 and a second housing 12. The second housing 12 is fixedly installed on the rear mounting base 2. The cross-section of the second housing 12 is a near-rectangular structure, and openings are made on both the front and rear sides. The first housing 11 is fixedly installed on the second housing 12. The cross-section of the first housing 11 is a near-rectangular structure, and an opening is made on its rear side. The first housing 11 is made of transparent material.

[0031] like Figures 1 to 3 As shown, the rear mounting base 2 has a plate-like structure. An adjustment hole 23 is formed at the bottom end of the rear mounting base 2. The adjustment hole 23 is circular, and an adjustment rod 5 (a bolt) passes through it. Several circular holes are spaced apart at the top end of the rear mounting base 2 for threading electrical wires. A first adjusting part 21 protrudes inward on the inner side of the rear mounting base 2. Several mounting fins 22 are spaced apart within the first adjusting part 21. The inner end face of each mounting fin 22 is a first arc surface 211, and the outer ends of the mounting fins 22 penetrate the rear mounting base 2, allowing heat from the lamp housing 1 to be transferred to the outside of the rear mounting base 2. One end of a side mounting plate 24 is fixedly mounted at each end of the first adjusting part 21. A fixing member 25 is fixedly mounted at the other end of the side mounting plate 24. A circular hole is formed between the fixing member 25 and the side mounting plate 24, suitable for rotating the inner heat sink 3. Preferably, the fixing member 25 and the side mounting plate 24 can be fixed together by bolts, adhesive, tenons, or other means.

[0032] like Figure 1 , Figure 3 As shown, heat sink 3 has heat sink shafts 33 at both ends. The heat sink shafts 33 are located in the circular holes between the fixing member 25 and the side mounting plate 24, and are suitable for rotating to adjust the angle of the inner heat sink 3. The rotation angle of the inner heat sink 3 is as follows: Figure 3 As indicated by the arrow, the rotation angle is within 3° to 5°; the inner heat sink 3 has a finned structure, and the rear end of the inner heat sink 3 has an upwardly protruding second adjustment part 32. The outer surface of the second adjustment part 32 is a second arc surface 31, which corresponds to the first arc surface 211. When the inner heat sink 3 rotates, the first arc surface 211 and the second arc surface 31 are always in contact, so that the mounting fins 22 of the first adjustment part 21 are in contact with the fins of the inner heat sink 3, thus maintaining the heat dissipation effect when the inner heat sink 3 rotates. The bottom end of the inner heat sink 3 has a downwardly protruding third adjustment part 34, and the cross-section of the third adjustment part 34 is a U-shaped structure.

[0033] like Figures 1 to 3As shown, the adjusting rod 5 is inserted into the adjusting hole 23 of the rear mounting base 2. An anti-detachment ring 51 is fixedly installed on the outer end of the adjusting rod 5. The anti-detachment ring 51 is located inside the rear mounting base 2. The anti-detachment ring 51 has a ring structure and its diameter is larger than the diameter of the adjusting hole 23 to prevent the adjusting rod 5 from detaching from the rear mounting base 2 during movement. The inner end of the adjusting rod 5 is threaded onto the buckle 52. The buckle 52 is snapped onto the third adjusting part 34 of the inner heat sink 3. One end of the buckle 52 has a plate-like structure and abuts against... The buckle 52 rests on the outer side of the third adjustment part 34. The other end of the buckle 52 is a gradually narrowing near-U-shaped structure with a certain degree of elasticity. When the buckle 52 passes through the third adjustment part 34, it is compressed inward. After passing through the third adjustment part 34, it returns to its original shape and rests against the inner side of the third adjustment part 34. The inner side of the buckle 52 is provided with threads corresponding to the adjustment rod 5. When the adjustment rod 5 rotates, the buckle 52 rotates and moves inward or outward on the adjustment rod 5, thereby driving the third adjustment part 34 and the inner heat sink 3 to rotate.

[0034] like Figure 1 , Figure 3 As shown, a second circuit board 6 is fixedly installed inside the second housing 12. The second circuit board 6 is located below the inner heat sink 3, and a rectangular opening is formed in the middle of the second circuit board 6, which is suitable for the third adjustment part 34 of the inner heat sink 3 to pass through. The top surface of the inner heat sink 3 is inclined, and a first circuit board 4 is fixedly installed at the top of the inner heat sink 3. A protruding ridge is formed at the front end of the top surface of the inner heat sink 3, which is suitable for clamping the first circuit board 4. A plurality of light-emitting diodes are fixedly installed at intervals on the first circuit board 4, and a reflector bowl 7 is fixedly installed on the first circuit board 4. The installation position of the reflector bowl 7 corresponds to the plurality of light-emitting diodes, which is suitable for reflecting the light of the light-emitting diodes. A lens mounting base 8 is fixedly installed at the front end of the first circuit board 4. The lens mounting base 8 is located in front of the reflector bowl 7. A lens 9 is fixedly installed at the front end of the lens mounting base 8. The lens 9 is made of transparent material. The lens mounting base 8 includes an inner lens mounting base 81 and an outer lens mounting base 82. The inner lens mounting base 81 has a hollow structure to allow light to pass through. The inner lens mounting base 81 is embedded in the outer lens mounting base 82. The end of the lens 9 is snapped between the front end of the inner lens mounting base 81 and the front end of the outer lens mounting base 82, which is suitable for firmly installing the lens 9 and allowing light to pass through the lens 9. Rotating the adjusting rod 5 adjusts the angle of the inner heat sink 3, thereby adjusting the angles of the first circuit board 4, the reflector bowl 7, the lens mounting base 8, and the lens 9, thus adjusting the direction of the light.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A headlight, characterized in that, include: The lamp housing (1) is a slotted structure with an opening on one side, and a rear mounting base (2) is fixed at the opening. A closed space for accommodating the lamp core assembly is formed between the lamp housing (1) and the rear mounting base (2). An inner heat sink (3) is located inside the lamp housing (1) and is rotatably mounted on the rear mounting base (2). One end of the heat sink (3) has a second arc surface (31). The rear mounting base (2) has a first arc surface (211) corresponding to the second arc surface (31). When the inner heat sink (3) rotates, the first arc surface (211) and the second arc surface (31) are always in contact. The lamp core assembly is mounted on the inner heat sink (3); Adjusting rod (5), one end of the adjusting rod (5) is located outside the rear mounting base (2), and the other end of the adjusting rod (5) passes through the rear mounting base (2) and is connected to the inner heat sink (3). By adjusting the adjusting rod (5), the inner heat sink (3) is driven to rotate the lamp core assembly.

2. The headlight according to claim 1, characterized in that, The rear mounting base (2) is provided with a plurality of mounting base fins (22) spaced apart. The inner ends of the plurality of mounting base fins (22) protrude from the inner end face of the rear mounting base (2) to form a first adjustment part (21). The inner side of the first adjustment part (21) is a first arc surface (211). The internal heat sink (3) has several fins spaced apart.

3. The headlight according to claim 2, characterized in that, One end of the inner heat sink (3) is provided with an upwardly protruding second adjustment part (32), and the side surface of the second adjustment part (32) is the second arc surface (31).

4. The headlight according to claim 3, characterized in that, The bottom end of the inner heat sink (3) is provided with a third adjustment part (34), and the inner end of the adjustment rod (5) is threadedly connected to the third adjustment part (34).

5. The headlight according to any one of claims 2 to 4, characterized in that, Side mounting plates (24) are fixedly installed on both sides of the first adjustment part (21), and fasteners (25) are fixedly installed on the side mounting plates (24).

6. The headlight according to claim 5, characterized in that, The inner heat sink (3) has heat sink shafts (33) on both sides, and the heat sink shafts (33) are rotatably installed between the side mounting plate (24) and the fixing member (25).

7. The headlight according to claim 4, characterized in that, An anti-detachment ring (51) is provided on the adjusting rod (5). The anti-detachment ring (51) is located inside the rear mounting seat (2) and is adapted to prevent the adjusting rod (5) from detaching from the rear mounting seat (2).

8. The headlight according to claim 7, characterized in that, The third adjustment part (34) is fitted with a buckle (52), and the inner end of the adjustment rod (5) is threadedly connected to the buckle (52).

9. The headlight according to any one of claims 1 to 4, characterized in that, The lamp core assembly includes a first circuit board (4) and a second circuit board (6). The first circuit board (4) and the second circuit board (6) are fixedly installed on the upper and lower sides of the inner heat sink (3), respectively. Several lamp beads and reflector bowls (7) are fixedly installed on the first circuit board (4). Inside the lamp housing (1), a lens mounting base (8) corresponding to the reflector bowl (7) is also fixedly installed. A lens (9) is fixedly installed at the front end of the lens mounting base (8) to reflect the light emitted by the lamp bead onto the lens (9). The light passes through the lens (9) and the lamp housing (1) to emit light.

10. An electric vehicle, characterized in that, The electric vehicle is equipped with a headlight as described in any one of claims 1 to 9.

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