Lamp structure

Abstract

The utility model discloses a lamp structure and relates to the technical field of lamps. Comprising a first heat dissipation plate, a second heat dissipation plate and mounting plates, the two ends of the first heat dissipation plate and the two ends of the second heat dissipation plate are connected through the mounting plates, the contact faces of the first heat dissipation plate and the second heat dissipation plate are arc faces, the vertical end of the first heat dissipation plate is the mounting face of a light source and used for mounting optical parts, and the second heat dissipation plate is the mounting face of a lamp. The fixing device is used for being fixed to the outer wall of a headlamp cavity, and the outer wall is a heat dissipation face of lamp heat. The utility model has the beneficial effects that the heat conduction efficiency is high, a heat transfer path which completely depends on heat conduction is established between the heat source and the cold end, and the heat conduction efficiency in a single direction is greatly improved. On the premise of keeping an angle adjusting function, high heat conduction efficiency is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lamp technical field, specifically relates to a lamp structure. BACKGROUND

[0002] Now train's headlamp is installed in a completely closed space inside system, and the internal space is limited, and there is no air flow, and the heat dissipation is realized completely by the cooling of the outer wall of the space. Therefore, the high-power locomotive headlamp still uses the light source such as metal halide lamp that can withstand higher ambient temperature. Although the temperature of the lamp is not a big problem, but it can cause the reliability of the lamp to decline, the photoelectric conversion efficiency is low, the illumination is insufficient and other problems, so as to cause great pressure to the maintenance department.

[0003] Due to the progress of technology, the photoelectric conversion efficiency of LED has far exceeded the light source commonly used in locomotive headlamp such as metal halide lamp and xenon lamp. If LED can be used as a light source, the service life and reliability of the headlamp can be greatly improved, the maintenance pressure is reduced, and the driving safety is ensured. At present, the main reason why LED is not used is that the heat dissipation problem of the lamp cannot be solved. The heat resistance of LED is far inferior to that of gas discharge light source, for example, the maximum temperature of the PN junction of LED cannot exceed 105 DEG C, and the temperature of the glass shell in the gas discharge lamp can reach 550 DEG C. Therefore, if LED is used as a light source, the heat dissipation problem of the lamp must be solved. SUMMARY

[0004] The utility model discloses a lamp structure for the heat dissipation problem of LED lamp in the prior art.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a lamp structure, which comprises a first heat dissipation plate, a second heat dissipation plate and a mounting plate, the two ends of the first heat dissipation plate and the second heat dissipation plate are connected through the mounting plate, the contact surface of the first heat dissipation plate and the second heat dissipation plate is a circular arc surface, the contact surface of the first heat dissipation plate and the second heat dissipation plate is a circular arc surface, which helps to improve the contact surface area and thus improve the heat dissipation performance. The circular arc surface is easier to realize uniform heat transfer, avoid local overheating and ensure that the whole lamp maintains a relatively low temperature during long-term use. The vertical end of the first heat dissipation plate is a light source mounting surface for mounting optical parts, the vertical end of the first heat dissipation plate is designed as a light source mounting surface, which can directly install the light source and optical parts, so that the light source and the heat dissipation system are closely combined, the heat management efficiency of the light source is improved, and the problem of overheating of the light source caused by poor heat dissipation is avoided.

[0006] Further, the first heat dissipation plate is T-shaped, a mounting hole is arranged at the top end of the long side of the T-shaped structure, a fixing hole is arranged at the joint of the long side and the short side, and a circular arc surface is arranged on the contact surface of the short side and the second heat dissipation plate. The T-shaped design makes the layout of the heat dissipation plate more compact and reasonable, and helps to achieve better heat dissipation effect in a limited space. The long side of the T-shaped structure provides sufficient support, and the contact surface of the short side and the second heat dissipation plate ensures that the heat can be quickly conducted out, avoiding the accumulation of heat inside the lamp.

[0007] Further, the mounting plate is provided with a rotating groove matched with the rotating track of the fixing hole, and the mounting plate is connected with the mounting hole and the rotating groove through two knobs respectively.

[0008] The design of the rotating groove and the knob makes the mounting plate can be adjusted conveniently during installation. When the knob is rotated, the inclination angle of the first heat dissipation plate can be adjusted through the track of the rotating groove. This makes the actual installation and debugging process more efficient, reducing the complexity of manual adjustment.

[0009] Further, the first heat dissipation plate is L-shaped.

[0010] Further, the first heat dissipation plate is composed of a plurality of spliced pieces.

[0011] After adopting the above technical scheme, the utility model has the beneficial effects of high heat conduction efficiency, a heat transfer path completely relying on heat conduction is established between the heat source and the cold end, and the heat conduction efficiency in a single direction is greatly improved. Under the premise of maintaining the angle adjustment function, the high heat conduction efficiency is ensured.

[0012] The cooperation of the first heat dissipation plate and the T-shaped arc contact surface of the first heat dissipation plate takes into account the requirements of rotation and large contact surface. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0014] Fig. 1 It is the structure schematic diagram of the utility model.

[0015] Fig. 2 It is the sectional view of the utility model.

[0016] Fig. 3 It is the structure schematic diagram of the first heat dissipation plate 1 after inclination.

[0017] Explanation of reference signs: first heat dissipation plate 1, mounting hole 11, fixing hole 12, circular arc surface 13,

[0018] Second heat dissipation plate 2,

[0019] Mounting plate 3, knob 31, rotating groove 32. DETAILED DESCRIPTION

[0020] Referring to Figs. 1-3 The technical scheme adopted in the specific embodiment is: a lamp structure, which comprises a first heat dissipation plate 1, a second heat dissipation plate 2 and a mounting plate 3, and the two ends of the first heat dissipation plate 1 and the second heat dissipation plate 2 are connected through the mounting plate 3.

[0021] Specifically, the vertical end of the first heat dissipation plate 1 is a mounting surface of a light source, used for mounting optical parts, and the second heat dissipation plate 2 is a mounting surface of the lamp, used for being fixed on the outer wall of a headlamp chamber, which is a heat dissipation surface of the lamp.

[0022] More specifically, the first heat dissipation plate 1 is T-shaped, the top end of the long side of the first heat dissipation plate 1 T-shaped is provided with a mounting hole 11, the connecting position of the long side and the short side is provided with a fixing hole 12, and the contact surface of the short side and the second heat dissipation plate 2 is provided with a downward circular arc surface 13.

[0023] In some embodiments, the contact surface of the short side and the second heat dissipation plate 2 can also be an upward circular arc surface 13.

[0024] In some embodiments, the first heat dissipation plate 1 can also be L-shaped.

[0025] In some embodiments, the first heat dissipation plate 1 can also not be an integrally formed part but be composed of a plurality of spliced parts.

[0026] More specifically, the mounting plate 3 is provided with a rotating groove 32 matched with the rotating track of the fixing hole 12, and the mounting plate 3 is connected with the mounting hole 11 and the rotating groove 32 through two knobs 31 respectively.

[0027] The working principle of the utility model is as follows: first, optical parts such as LED lamps and light source lenses are mounted on the first heat dissipation plate 1, then the first heat dissipation plate 1 and the second heat dissipation plate 2 are connected through the mounting plate 3, and then they are placed in a lamp chamber and fixedly connected with the lamp chamber through fixing parts such as bolts. After the installation is completed, the two knobs 31 are loosened, then the inclination angle of the first heat dissipation plate 1 is adjusted, and after the adjustment is completed, the knob 31 is locked to complete the installation.

[0028] The above description is only used to explain the technical scheme of the utility model and not to limit it, and other modifications or equivalent replacements to the technical scheme of the utility model made by those skilled in the art should be covered in the claim range of the utility model.

Claims

1. A luminaire structure, characterized by: The application relates to a heat dissipation device for a light source, which comprises a first heat dissipation plate (1), a second heat dissipation plate (2) and a mounting plate (3), the two ends of the first heat dissipation plate (1) and the second heat dissipation plate (2) are connected through the mounting plate (3), the contact surface of the first heat dissipation plate (1) and the second heat dissipation plate (2) is a circular arc surface (13), the vertical end of the first heat dissipation plate (1) is a mounting surface of a light source and is used for mounting optical parts, the second heat dissipation plate (2) is a mounting surface of a lamp and is used for being fixed on the outer wall of a headlamp chamber, and the outer wall is a heat dissipation surface of the lamp.

2. A luminaire structure according to claim 1, characterised in that: The first heat dissipation plate (1) is T-shaped, the top end of the long side of the T-shaped structure is provided with a mounting hole (11), the connecting position of the long side and the short side is provided with a fixing hole (12), and the contact surface of the short side and the second heat dissipation plate (2) is provided with a circular arc surface (13).

3. A luminaire structure according to claim 1, characterized in that: The mounting plate (3) is provided with a rotating groove (32) matched with the rotating track of the fixing hole (12), and the mounting plate (3) is connected with the mounting hole (11) and the rotating groove (32) through two knobs (31) respectively.

4. The luminaire structure of claim 1, wherein: The first heat dissipation plate (1) is L-shaped.

5. The luminaire structure of claim 1, wherein: The first heat dissipation plate (1) is composed of a plurality of spliced parts.

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