Heat dissipation demisting device for vehicle lamp

Abstract

The heat dissipation demisting device comprises a lamp shell, a heat conduction column, a lamp bead body, a heat dissipation device, a light-transmitting plate, an air inlet, an air outlet, a heat dissipation mechanism and a heating mechanism, the air inlet is formed in the outer surface of the lamp shell, and the air outlet is formed in the outer surface of the lamp shell and located on one side of the air inlet; the functions of air circulation and rapid heat dissipation in the lamp shell can be achieved, when the automobile lamp is used, external airflow is guided to enter the lamp shell through the air inlet through the heat dissipation mechanism, heat generated by the lamp bead body is brought out from the air outlet, air circulation and rapid heat dissipation in the lamp shell are achieved, and then hot airflow passes through the heating mechanism to heat the automobile lamp. The light-transmitting plate and air around the light-transmitting plate are heated, the temperature difference between the light-transmitting plate and the lamp bead can be reduced, and therefore the fogging problem is effectively solved, the lighting effect of the automobile lamp can be guaranteed, and driving safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, in particular to a heat dissipation and demisting device for vehicle lamps. Background Art

[0002] Headlights are an important part of a vehicle, mainly composed of lamp housing, lamp beads, light-transmitting panels, heat-conducting columns, radiators, etc. They play the role of lighting and signaling, and can improve driving safety at night and in bad weather conditions.

[0003] In actual use, some existing headlights have a certain physical distance between the light-transmitting plate (usually the transparent or translucent component on the outside of the headlight, responsible for projecting light outward) and the lamp beads (the light source, the component that generates light). When the internal temperature of the headlight is high and the external ambient temperature drops suddenly, water vapor inside the headlight will condense into tiny water droplets on the cooler surface of the light-transmitting plate, forming fog. This not only significantly reduces the lighting effect of the headlight, reducing the clarity and distance of light projection, but also may pose a threat to driving safety. Therefore, a heat dissipation and demisting device for headlights is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a heat dissipation and demisting device for a headlight, which can solve the problem that due to a certain physical distance between the light-transmitting plate and the lamp beads, when the internal temperature of the headlight is high and the external ambient temperature drops suddenly, the water vapor inside the headlight will condense into tiny water droplets on the colder surface of the light-transmitting plate, forming fog. This will not only significantly reduce the lighting effect of the headlight, reduce the clarity and distance of light projection, but also pose a threat to driving safety.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a heat dissipation and demisting device for a vehicle lamp, comprising a lamp housing, a heat-conducting column, a lamp bead body, a radiator, and a light-transmitting plate, and also comprising:

[0006] An air inlet is provided on the outer surface of the lamp housing;

[0007] An air outlet is provided on the outer surface of the lamp housing and is located on the side of the air inlet;

[0008] A heat dissipation mechanism, the heat dissipation mechanism being arranged on the outer surface of the lamp housing and fixedly connected to the air outlet;

[0009] The heating mechanism is arranged on the outer surface of the lamp housing, the heating mechanism is in contact with the light-transmitting plate, and the heating mechanism is fixedly connected to the heat dissipation mechanism.

[0010] Preferably, the heat dissipation mechanism includes a fan arranged on the outer surface of the lamp housing, the input end of the fan is provided with a delivery pipe 1, the delivery pipe 1 is fixedly connected to the air outlet, and the output end of the fan is provided with a delivery pipe 2.

[0011] Preferably, the first delivery pipe and the second delivery pipe are both made of polyimide plastic material.

[0012] Preferably, the heating mechanism includes a heat conducting ring arranged on the outer surface of the lamp housing, the heat conducting ring is in contact with the light-transmitting plate, a heat conducting pipe is provided on the outer surface of the heat conducting ring, and the heat conducting pipe is fixedly connected to the second delivery pipe.

[0013] Preferably, the heat conducting pipe is in a threaded shape, and the cross section of the heat conducting pipe is rectangular.

[0014] Preferably, the heat conducting ring and the heat conducting pipe are both made of aluminum.

[0015] Preferably, a one-way valve 1 is provided at the air inlet, and a one-way valve 2 is provided at the exhaust port of the heat pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This application realizes the functions of air circulation and rapid heat dissipation inside the lamp housing by setting up an air inlet, an air outlet, a heat dissipation mechanism and a heating mechanism. When the car lamp is in use, the heat dissipation mechanism guides the external airflow into the lamp housing through the air inlet, and brings the heat generated by the lamp bead body out from the air outlet, thereby realizing air circulation and rapid heat dissipation inside the lamp housing. Subsequently, the hot air flow passes through the heating mechanism to heat the light-transmitting plate and the air around it, which can reduce the temperature difference between the light-transmitting plate and the lamp bead part, thereby effectively solving the problem of fogging, and then can ensure the lighting effect of the car lamp and improve driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is the overall structural view of the utility model;

[0020] Figure 2 For this utility model Figure 1 The cross-sectional structural view of the lamp housing;

[0021] Figure 3 For this utility model Figure 2 Structural view of the heating mechanism in FIG.

[0022] Figure 4 For this utility model Figure 3 Cross-sectional view of the thermal conductive ring.

[0023] Description of reference numerals:

[0024] 1. Lamp housing; 2. Heat-conducting column; 3. Lamp body; 4. Radiator; 5. Translucent plate; 6. Air inlet; 7. Air outlet; 8. Heat dissipation mechanism; 81. Fan; 82. Delivery pipe 1; 83. Delivery pipe 2; 9. Heating mechanism; 91. Heat-conducting ring; 92. Heat-conducting pipe; 10. One-way valve 1; 11. One-way valve 2. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1 to 4 , the utility model provides a technical solution:

[0027] A heat dissipation and demisting device for a vehicle lamp, comprising a lamp housing 1, a heat conducting column 2, a lamp bead body 3, a radiator 4 and a light-transmitting plate 5, and further comprising:

[0028] The air inlet 6 is provided on the outer surface of the lamp housing 1;

[0029] The air outlet 7 is provided on the outer surface of the lamp housing 1 and is located on one side of the air inlet 6;

[0030] The heat dissipation mechanism 8 is arranged on the outer surface of the lamp housing 1 and is fixedly connected to the air outlet 7;

[0031] The heating mechanism 9 is arranged on the outer surface of the lamp housing 1 , and the heating mechanism 9 is in contact with the light-transmitting plate 5 , and the heating mechanism 9 is fixedly connected to the heat dissipation mechanism 8 .

[0032] Specifically, such as Figure 1 and Figure 2 As shown, the heat dissipation mechanism 8 includes a fan 81 arranged on the outer surface of the lamp housing 1, a delivery pipe 1 82 is provided at the input end of the fan 81, the delivery pipe 1 82 is fixedly connected to the air outlet 7, and a delivery pipe 2 83 is provided at the output end of the fan 81.

[0033] Specifically, such as Figure 1 and Figure 2 As shown, the delivery pipe 1 82 and the delivery pipe 2 83 are both made of polyimide plastic material, which has the characteristics of high thermal insulation performance, high temperature resistance, high hardness, light weight, and high corrosion resistance.

[0034] Specifically, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the heating mechanism 9 includes a heat conducting ring 91 arranged on the outer surface of the lamp housing 1, the heat conducting ring 91 contacts the light transmitting plate 5, and a heat conducting pipe 92 is provided on the outer surface of the heat conducting ring 91, and the heat conducting pipe 92 is fixedly connected to the second delivery pipe 83.

[0035] Specifically, such as Figure 1 、 Figure 2 and Figure 3 As shown, the heat pipe 92 is threaded, and the cross section of the heat pipe 92 is rectangular, which can increase the contact area with the heat conducting ring 91, achieve higher heat conduction, and enable the gas to flow smoothly.

[0036] Specifically, such as Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the heat conducting ring 91 and the heat conducting pipe 92 are both made of aluminum. The heat conducting ring 91 and the heat conducting pipe 92 made of aluminum have good thermal conductivity and relatively low cost.

[0037] Specifically, such as Figure 1 、 Figure 2 and Figure 3 As shown, a one-way valve 10 is provided at the air inlet 6, and a one-way valve 2 11 is provided at the exhaust port of the heat pipe 92. When in use, the one-way valve 10 and the one-way valve 2 11 can be automatically opened to complete the air circulation inside the lamp housing 1 and improve the heat dissipation effect. When not in use, they can be automatically closed to seal the internal space of the lamp housing 1.

[0038] Working principle: When using the car light, the fan 81 can be started, which guides the external air flow into the interior of the lamp housing 1 through the air inlet 6. This air flow can bring out the heat generated by the lamp bead body 3 from the air outlet 7, realizing air circulation and rapid heat dissipation inside the lamp housing 1. Subsequently, the hot air flow is transported to the interior of the heat pipe 92 through the delivery pipe 1 82 and the delivery pipe 2 83. The heat pipe 92 further transfers the heat to the heat conducting ring 91, thereby heating the light-transmitting plate 5 and the air around it. This heating process reduces the temperature difference between the light-transmitting plate 5 and the external cold environment. During this process, the one-way valve 1 10 and the one-way valve 2 11 will automatically open, allowing the air flow to enter the interior of the lamp housing 1 and be discharged smoothly through the exhaust port of the heat conducting pipe 92. When the car light is finished using, the one-way valve 1 10 and the one-way valve 2 11 will automatically close to ensure that the internal space of the lamp housing 1 remains closed.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A heat dissipation and demisting device for a vehicle lamp, comprising a lamp housing (1), a heat conducting column (2), a lamp bead body (3), a heat sink (4) and a light-transmitting plate (5), characterized in that: Also included are: An air inlet (6), the air inlet (6) being provided on the outer surface of the lamp housing (1); An air outlet (7), the air outlet (7) being provided on the outer surface of the lamp housing (1) and located on one side of the air inlet (6); A heat dissipation mechanism (8), the heat dissipation mechanism (8) being arranged on the outer surface of the lamp housing (1), and the heat dissipation mechanism (8) being fixedly connected to the air outlet (7); A heating mechanism (9) is provided on the outer surface of the lamp housing (1), the heating mechanism (9) is in contact with the light-transmitting plate (5), and the heating mechanism (9) is fixedly connected to the heat dissipation mechanism (8).

2. The heat dissipation and demisting device for a vehicle lamp according to claim 1, characterized in that: The heat dissipation mechanism (8) includes a fan (81) arranged on the outer surface of the lamp housing (1), a delivery pipe (82) is provided at the input end of the fan (81), the delivery pipe (82) is fixedly connected to the air outlet (7), and a delivery pipe (83) is provided at the output end of the fan (81).

3. The heat dissipation and demisting device for a vehicle lamp according to claim 2, characterized in that: The delivery pipe 1 (82) and the delivery pipe 2 (83) are both made of polyimide plastic material.

4. The heat dissipation and demisting device for a vehicle lamp according to claim 3, characterized in that: The heating mechanism (9) comprises a heat conducting ring (91) arranged on the outer surface of the lamp housing (1), the heat conducting ring (91) being in contact with the light-transmitting plate (5), a heat conducting pipe (92) being arranged on the outer surface of the heat conducting ring (91), and the heat conducting pipe (92) being fixedly connected to the second delivery pipe (83).

5. The heat dissipation and demisting device for a vehicle lamp according to claim 4, characterized in that: The heat conducting pipe (92) is in a threaded shape, and the cross section of the heat conducting pipe (92) is in a rectangular shape.

6. The heat dissipation and demisting device for a vehicle lamp according to claim 5, characterized in that: The heat conducting ring (91) and the heat conducting pipe (92) are both made of aluminum.

7. The heat dissipation and demisting device for a vehicle lamp according to claim 6, characterized in that: A one-way valve (10) is provided at the air inlet (6), and a one-way valve (11) is provided at the exhaust port of the heat conducting pipe (92).

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