Lamp with light leakage prevention structure

Abstract

The utility model discloses a lamp with a light leakage prevention structure, relates to the technical field of automobile lamps, and aims to solve the problems that a large amount of heat generated during operation of a bulb cannot be dissipated in time, the heat is gathered in a shell and the practicability is low in the background technology. The shading mechanism comprises a shading cylinder with the inner wall sprayed with a reflective coating, a mounting piece is arranged in the shading cylinder, an LED light source is arranged on one side of the mounting piece, a lens is embedded in the inner wall of the end, away from the mounting piece, of the shading cylinder, and a heat dissipation mechanism is arranged on one side of the mounting piece. The heat dissipation mechanism comprises a heat conduction piece, a plurality of heat dissipation pieces fixedly arranged on the outer wall of one side of the heat conduction piece and a plurality of connecting pieces penetrating through and inserted into the outer wall of the installation piece, and a shell is arranged outside the shading cylinder. The LED lamp can be cooled in time when the lamp runs, damage to the LED lamp caused by accumulation of a large amount of heat is prevented, and practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to a lighting fixture with a light leakage prevention structure. Background Technology

[0002] Vehicle lights are tools for illuminating roads when vehicles are driving at night, and also for issuing various vehicle driving signals. Vehicle lights are generally divided into headlights, taillights, turn signals, etc.

[0003] A search revealed a Chinese patent (application number "201922395723.7") disclosing "a light leakage prevention structure for automotive lamp bulbs." This light leakage prevention structure includes a housing structure, a mounting ring, glass, a focusing structure, and a reinforcing structure. The housing structure is movably connected to one side of the glass. A mounting ring is fixedly connected to one side of the housing structure. A mounting block is fixedly connected to one side of the mounting ring, and a focusing structure is movably connected to one side of the mounting block. A reinforcing structure is provided inside the focusing structure. A bulb is movably connected to one side of the mounting block. However, during use, the large amount of heat generated by the bulb cannot be dissipated in time, causing heat to accumulate inside the housing, resulting in low practicality. Utility Model Content

[0004] This utility model provides a lamp with a light leakage prevention structure, which solves the problem that the light leakage prevention structure proposed in the prior art cannot dissipate the large amount of heat generated by the bulb during use, causing heat to accumulate inside the shell and resulting in low practicality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lamp with a light leakage prevention structure includes a light-shielding mechanism. The light-shielding mechanism includes a light-shielding tube with a reflective coating sprayed on its inner wall. The light-shielding tube is provided with a mounting plate, and an LED light source is provided on one side of the mounting plate. A lens is embedded on the inner wall of the end of the light-shielding tube away from the mounting plate. A heat dissipation mechanism is provided on one side of the mounting plate. The heat dissipation mechanism includes a heat-conducting plate, a plurality of heat dissipation plates respectively fixed on the outer wall of one side of the heat-conducting plate, and a plurality of connecting plates respectively penetrating and inserted into the outer wall of the mounting plate. The light-shielding tube is provided with an outer shell. The outer shell includes a housing with a flange fixed on one end of the outer wall, a protective mirror fixed on the outer wall of one end of the housing, a mounting cover and a cooling fan connected to the outer wall of one end of the housing through the flange.

[0007] Preferably, two fixing rings are fixed on the outer wall of the light-shielding tube, and sealing rings are glued to the outer walls of both fixing rings.

[0008] Preferably, the mounting plate has a mounting groove on one side of its outer wall and a fixing opening on the inner wall of the mounting groove. The LED light source includes a drive disk embedded in the mounting groove and LED beads fixed on one side of the drive disk.

[0009] The above solution uses a light-shielding tube to reflect the light emitted by the LED light source, while a lens refracts the light inside the light-shielding tube, making most of the light horizontal and preventing light leakage caused by diffuse reflection.

[0010] Preferably, the heat-conducting sheet abuts against the outer wall of one side of the drive disk, and the heat-conducting sheet is embedded in the fixing hole, and the several connecting pieces are respectively fixed on the outer wall of one side of several heat sinks.

[0011] Preferably, the housing is bolted to the outer wall of two fixing rings, a mounting plate is fixed on the outer wall of one end of the mounting cover, and the cooling fan is bolted to the outer wall of one side of the mounting plate.

[0012] Preferably, the outer annular wall of the housing near the heat sink has an annular groove, and the annular groove has several air inlets, with a dustproof mesh embedded in the annular groove.

[0013] With the above solution, the heat-conducting sheet contacts the drive plate, and the heat-conducting sheet exchanges heat with the drive plate. The heat generated by the LED lamp bead during operation is accumulated in the housing, and then the heat is exchanged with multiple connecting pieces. The heat-conducting sheet and connecting pieces transfer the heat to the heat sink, and the cooling fan operates to dissipate heat from the heat sink and transport the heat to the outside.

[0014] The beneficial effects of this utility model are as follows:

[0015] The heat-conducting sheet contacts the drive plate, and the heat-conducting sheet exchanges heat with the drive plate. The heat generated by the LED lamp bead during operation is accumulated inside the housing. Then, the heat is exchanged with multiple connecting pieces. The heat-conducting sheet and connecting pieces transfer the heat to the heat sink. The cooling fan operates to dissipate heat from the heat sink and transfer the heat to the outside. This can dissipate heat from the lamp in a timely manner during operation, prevent a large amount of heat from accumulating and damaging the LED lamp, and improve practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall main structure of a lamp with a light leakage prevention structure proposed in this utility model.

[0017] Figure 2 This is a front view cross-sectional structural diagram of a lamp with a light leakage prevention structure proposed in this utility model.

[0018] Figure 3 This is a front view schematic diagram of the light-shielding mechanism of a lamp with a light-leakage prevention structure proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the mounting plate, LED light source, and lens of a lamp with a light leakage prevention structure proposed in this utility model.

[0020] Figure 5 This is a front view schematic diagram of the heat dissipation mechanism of a lamp with a light leakage prevention structure proposed in this utility model.

[0021] Figure 6 This is a schematic diagram of the main structure of the outer shell of a lamp with a light leakage prevention structure proposed in this utility model.

[0022] In the diagram: 1. Light-shielding mechanism; 101. Light-shielding tube; 102. Fixing ring; 2. Mounting plate; 3. LED light source; 31. Driver disk; 32. LED lamp bead; 4. Lens; 5. Heat dissipation mechanism; 501. Heat-conducting plate; 502. Heat sink; 503. Connecting plate; 6. Housing; 601. Housing; 602. Protective lens; 603. Mounting cover; 604. Mounting plate; 605. Cooling fan; 7. Dustproof net. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1, referring to Figure 1-4 A light fixture with a light leakage prevention structure includes a light-shielding mechanism 1. The light-shielding mechanism 1 includes a light-shielding tube 101 with a reflective coating sprayed on its inner wall. Two fixing rings 102 are fixed on the outer wall of the light-shielding tube 101. Sealing rings are glued to the outer walls of the two fixing rings 102. An mounting plate 2 is provided inside the light-shielding tube 101. An LED light source 3 is provided on one side of the mounting plate 2. An installation groove is opened on the outer wall of one side of the mounting plate 2. A fixing opening is opened on the inner wall of the installation groove. The LED light source 3 includes a drive disk 31 embedded in the installation groove and an LED lamp bead 32 fixed on one side of the drive disk 31. The drive disk 31 is used to drive the LED lamp bead 32 to run. A lens 4 is embedded on the inner wall of the end of the light-shielding tube 101 away from the mounting plate 2.

[0025] Example 2, refer to Figure 5-6A lamp with a light leakage prevention structure also includes a heat dissipation mechanism 5. The heat dissipation mechanism 5 includes a heat-conducting plate 501, several heat dissipation plates 502 respectively fixed on one side of the outer wall of the heat-conducting plate 501, and several connecting plates 503 respectively penetrating and inserted into the outer wall of the mounting plate 2. The heat-conducting plate 501 abuts against one side of the outer wall of the drive disk 31 and is embedded in the fixing opening. Several connecting plates 503 are respectively fixed on one side of the outer wall of several heat dissipation plates 502. The light-shielding tube 101 is provided with an outer shell 6. The outer shell 6 includes a method fixed on one end of the outer wall. The blue plate has a housing 601, a protective mirror 602 fixed to the outer wall of one end of the housing 601, a mounting cover 603 and a cooling fan 605 connected to the outer wall of one end of the housing 601 by a flange. The housing 601 is bolted to the outer wall of two fixing rings 102. A mounting plate 604 is fixed to the outer wall of one end of the mounting cover 603. The cooling fan 605 is bolted to the outer wall of one side of the mounting plate 604. An annular groove is opened on the annular outer wall of the housing 601 near the heat sink 502. Several air inlets are opened in the annular groove. A dustproof mesh 7 is embedded in the annular groove.

[0026] Working principle: The light shield 101 reflects the light emitted by the LED light source 3, while the lens 4 refracts the light inside the light shield 101, making most of the light horizontal and preventing light leakage caused by diffuse reflection. The heat conduction plate 501 contacts the drive plate 31, and the heat conduction plate 501 exchanges heat with the drive plate 31. The heat generated by the LED light bead 32 during operation is accumulated in the housing 601, and then the heat is exchanged with multiple connecting pieces 503. The heat conduction plate 501 and the connecting pieces 503 transfer the heat to the heat sink 502. The cooling fan 605 operates to dissipate heat from the heat sink 502 and transfer the heat to the outside.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A lamp with a light-leakage prevention structure, comprising a light-shielding mechanism (1), characterized in that, The light-shielding mechanism (1) includes a light-shielding cylinder (101) with a reflective coating sprayed on its inner wall; The light-shielding tube (101) is provided with a mounting plate (2), and an LED light source (3) is provided on one side of the mounting plate (2). A lens (4) is embedded on the inner wall of the end of the light-shielding tube (101) away from the mounting plate (2). The mounting plate (2) is provided with a heat dissipation mechanism (5) on one side. The heat dissipation mechanism (5) includes a heat-conducting plate (501), a number of heat dissipation plates (502) respectively fixed on the outer wall of one side of the heat-conducting plate (501), and a number of connecting plates (503) respectively penetrating and inserted into the outer wall of the mounting plate (2). The light-shielding cylinder (101) is provided with an outer shell (6), which includes a housing (601) with a flange fixed on one end of the outer wall, a protective mirror (602) fixed on one end of the outer wall of the housing (601), a mounting cover (603) connected to one end of the outer wall of the housing (601) by a flange, and a cooling fan (605).

2. A lamp with a light leakage prevention structure according to claim 1, characterized in that, Two fixing rings (102) are fixed on the outer wall of the light-shielding tube (101), and sealing rings are glued to the outer walls of the two fixing rings (102).

3. A lamp with a light leakage prevention structure according to claim 1, characterized in that, The mounting plate (2) has a mounting groove on one side of its outer wall and a fixing opening on the inner wall of the mounting groove. The LED light source (3) includes a drive disk (31) embedded in the mounting groove and an LED lamp bead (32) fixed on one side of the drive disk (31).

4. A lamp with a light leakage prevention structure according to claim 3, characterized in that, The heat-conducting plate (501) abuts against the outer wall of the drive disk (31) on one side, and the heat-conducting plate (501) is embedded in the fixing hole. Several connecting pieces (503) are respectively fixed on the outer wall of one side of several heat sinks (502).

5. A lamp with a light leakage prevention structure according to claim 2, characterized in that, The housing (601) is bolted to the outer wall of two fixing rings (102), and a mounting plate (604) is fixed on the outer wall of one end of the mounting cover (603), and the cooling fan (605) is bolted to the outer wall of one side of the mounting plate (604).

6. A lamp with a light leakage prevention structure according to claim 1, characterized in that, The housing (601) has an annular groove on its outer wall near the heat sink (502), and several air inlets are provided in the annular groove. A dustproof mesh (7) is embedded in the annular groove.

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