Automobile lamp and automobile

Abstract

The utility model discloses a car lamp which comprises a lamp shell, an air pressure balancing device and a drying agent. The lamp shell forms a closed lamp cavity used for containing the light-emitting assembly. The air pressure balancing device at least comprises one of a first air pressure balancing assembly and a second air pressure balancing assembly, the first air pressure balancing assembly is arranged in the lamp cavity so as to absorb air in the lamp cavity or release air into the lamp cavity, the second air pressure balancing assembly is arranged on the lamp shell, and the air pressure in the lamp cavity is balanced by changing the volume of the lamp cavity. And the drying agent is arranged in the lamp cavity. According to the vehicle lamp disclosed by the utility model, the lamp cavity is of the closed structure, so that moisture in external air can be prevented from entering the lamp cavity, and the phenomena of water inflow and fogging can be reduced. The air pressure in the lamp cavity can be balanced through the air pressure balancing device, the risk of lamp explosion caused by increase of the pressure in the lamp cavity is reduced, and meanwhile the phenomenon that the lamp shell is damaged due to decrease of the air pressure in the lamp cavity is reduced. And the drying agent is arranged, so that dryness in the lamp cavity can be guaranteed. The utility model further discloses an automobile.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and more particularly to a headlight and an automobile. Background Art

[0002] Headlight fogging occurs due to a large temperature difference between the inside and outside of the lampshade, causing water vapor to condense in the cooler areas of the lampshade. Heat from the engine to the headlights and sunlight to the taillights raises the temperature inside the lamp cavity, creating a pressure difference inside and outside the lamp. This accelerates air exchange, allowing moist air to enter the lamp. This causes water vapor to condense in the cooler areas of the lampshade, resulting in fogging.

[0003] Traditional solutions to fogging are as follows: 1. Add desiccant to the headlight; 2. Adjust the position of the air vents on the side of the lamp housing. Using desiccant carries the risk of leaking due to damage to the desiccant packaging. Furthermore, desiccant is a consumable item with an expiration date and needs to be replaced after it expires. While the desiccant life can be extended by reducing the amount of air flow through the lamp and the amount of gas exchange inside and outside the headlight, indefinitely reducing the amount of air flow will result in a pressure difference between the inside and outside of the headlight, which may have other impacts on the lamp. Adjusting the position of the air vents carries the risk of water vapor entering the lamp through the air vents when the headlight housing is exposed to rain.

[0004] Therefore, how to reduce the occurrence of fogging and water ingress of vehicle lights has become a technical problem that needs to be urgently solved by those skilled in the art. Utility Model Content

[0005] In view of this, an object of the present invention is to provide a vehicle lamp to reduce the occurrence of fogging and water ingress into the vehicle lamp.

[0006] Another core of the present invention is to disclose a car comprising the above-mentioned headlight.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A vehicle lamp, comprising:

[0009] A lamp housing, the lamp housing forming a sealed lamp cavity for accommodating the light-emitting component;

[0010] An air pressure balancing device, the air pressure balancing device including at least one of a first air pressure balancing component and a second air pressure balancing component, wherein the first air pressure balancing component is disposed in the lamp cavity to absorb air in the lamp cavity or release air into the lamp cavity; and the second air pressure balancing component is disposed on the lamp housing to balance the air pressure in the lamp cavity by changing the volume of the lamp cavity.

[0011] Desiccant: the desiccant is arranged in the lamp cavity.

[0012] Optionally, in the above-mentioned car lamp, the first air pressure balancing component includes a container arranged in the lamp cavity, the container contains dry air, a first deformable structure is provided on the container, and an opening is provided on the first deformable structure. When there is a pressure difference between the lamp cavity and the container, the opening can be opened, and the container can absorb the air in the lamp cavity or release the air in the container into the lamp cavity.

[0013] Optionally, in the above-mentioned vehicle lamp, the opening is a slit provided on the first deformable structure.

[0014] Optionally, in the above-mentioned vehicle lamp, a heat insulating material is provided on the outer wall of the container.

[0015] Optionally, in the above vehicle lamp, the container is arranged in a position in the lamp cavity away from the light-emitting component.

[0016] Optionally, in the above vehicle lamp, the container is connected to the lamp housing by bonding or welding.

[0017] Optionally, in the above vehicle lamp, the shape of the first deformable structure includes one of a circle, a square and an ellipse.

[0018] Optionally, in the above vehicle lamp, the second air pressure balancing component includes a second deformable structure, and the second deformable structure is disposed on the lamp housing to deform as the pressure in the lamp cavity changes.

[0019] Optionally, in the above vehicle lamp, an anti-fog coating is provided on the inner wall of the lamp housing.

[0020] A car comprises a headlight, which is the headlight described above.

[0021] As can be seen from the above scheme, the vehicle lamp disclosed by the present invention has a closed lamp cavity structure, which can reduce the moisture in the outside air from entering the lamp cavity, and can reduce the occurrence of water ingress and fogging. The provision of the air pressure balancing device can balance the air pressure in the lamp cavity, reduce the risk of lamp explosion caused by increased pressure in the lamp cavity, and reduce the occurrence of lamp shell damage caused by reduced air pressure in the lamp cavity. The provision of the desiccant can absorb moisture in the lamp cavity, ensure the dryness of the interior of the lamp cavity, and further reduce the occurrence of fogging.

[0022] The automobile disclosed in the present invention includes the above-mentioned headlights, and therefore has all the technical effects of the above-mentioned headlights, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A vehicle lamp according to an embodiment of the present utility model is disclosed;

[0025] Figure 2 This is another embodiment of a vehicle lamp disclosed in the embodiments of the present utility model.

[0026] Wherein, 10 is a lamp housing, 20 is a lamp cavity, 30 is a container, 31 is a first deformable structure, and 40 is a second deformable structure. DETAILED DESCRIPTION

[0027] The core of the utility model is to disclose a vehicle lamp to reduce the occurrence of fogging and water ingress into the vehicle lamp.

[0028] Another core of the present invention is to disclose a car comprising the above-mentioned headlight.

[0029] 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.

[0030] like Figure 1 and Figure 2 As shown, an embodiment of the present utility model discloses a vehicle lamp, comprising a lamp housing 10, an air pressure balancing device and a desiccant.

[0031] The lamp housing 10 forms a sealed lamp cavity 20 for accommodating a light-emitting component, preferably an LED lamp. The air pressure balancing device includes at least one of a first air pressure balancing component and a second air pressure balancing component. The first air pressure balancing component is disposed within the lamp cavity 20 to absorb air within or release air into the lamp cavity 20. The second air pressure balancing component is disposed on the lamp housing 10 to balance the air pressure within the lamp cavity 20 by changing the volume of the lamp cavity 20. A desiccant is disposed within the lamp cavity 20 to absorb moisture within the lamp cavity 20; the desiccant is not shown in the figure.

[0032] When the light-emitting component is operating, or when the lamp housing 10 is placed in a high-temperature environment, heat is generated inside the lamp cavity 20. This heat accumulation causes the air inside the lamp cavity 20 to expand due to the heat, increasing the air pressure to a level higher than the external air pressure. When the temperature inside the lamp cavity 20 drops, the air inside the lamp cavity 20 cools and contracts, causing the air pressure to drop below the external air pressure. The first air pressure balancing component is disposed inside the lamp cavity 20. When the air pressure inside the lamp cavity 20 increases, it can absorb some of the air inside the lamp cavity 20. When the pressure inside the lamp cavity 20 drops, it can release air into the lamp cavity 20, thereby balancing the air pressure inside the lamp cavity 20.

[0033] The second air pressure balancing component is arranged on the lamp housing 10. When the pressure in the lamp cavity 20 increases, the second air pressure balancing component 20 can play a certain pressure relief role by increasing the volume of the lamp cavity 20; when the pressure in the lamp cavity 20 decreases, the second air pressure balancing component 20 can balance the air pressure in the lamp cavity 20 by reducing the volume of the lamp cavity 20, thereby reducing the risk of damage to the lamp housing 10.

[0034] The vehicle lamp disclosed in the embodiment of the present invention has a closed lamp cavity 20, which can reduce the amount of moisture in the outside air entering the lamp cavity 20, thereby reducing the occurrence of water ingress and fogging. The provision of an air pressure balancing device can balance the air pressure in the lamp cavity 20, reducing the risk of the lamp exploding due to increased pressure in the lamp cavity 20, and at the same time reducing the occurrence of damage to the lamp housing due to reduced air pressure in the lamp cavity 20. The provision of a desiccant can absorb moisture in the lamp cavity 20, ensuring the dryness of the interior of the lamp cavity 20, which can further reduce the occurrence of fogging.

[0035] In some specific embodiments, the first air pressure balancing device includes a container 30 disposed in the lamp cavity 20, and the container 30 contains dry air. It should be noted that the container 30 is provided with a first deformable structure 31, and the first deformable structure 31 is provided with an opening. When there is a pressure difference between the lamp cavity 20 and the container 30, the opening can be opened, and the container 30 can absorb air from the lamp cavity 20 or release air from the container 30 into the lamp cavity 20. When the air pressure in the lamp cavity 20 increases, the first deformable structure 31 is deformed and bulges toward one side of the container 30. At this time, the opening is opened, and air from the lamp cavity 20 enters the container 30 until the air pressure in the container 30 reaches equilibrium with the air pressure in the lamp cavity 20. When the air pressure in the lamp cavity 20 decreases, the first deformable structure 31 bulges toward the lamp cavity 20, and air from the container 30 enters the lamp cavity 20 until the air pressures of the two reach equilibrium, thereby balancing the air pressure in the lamp cavity 20.

[0036] In some specific embodiments, the opening is a gap provided on the first deformable structure 31. When the first deformable structure 31 is deformed, the first deformable structure 31 bulges toward the side with less pressure, and the gap becomes larger, so that the container 30 absorbs air in the lamp cavity 20 or releases air into the lamp cavity 20. Figure 2 The arrows in represent the flow direction of the gas. Specifically, the first deformable structure 31 may be a flexible film.

[0037] In order to reduce the influence of the heat of the light emitting component on the air temperature in the container 30, a heat insulating material is provided on the outer wall of the container 30. Specifically, the heat insulating material can be polyurethane or rock wool. At the same time, the container 30 is provided in the lamp cavity 20 away from the light emitting component.

[0038] The container 30 and the lamp housing 10 can be connected in a detachable manner, such as a snap connection, or in a non-detachable manner, such as an adhesive connection, or in a welding manner, specifically ultrasonic welding.

[0039] In the vehicle lamp disclosed in the embodiment of the present invention, the first deformable structure 31 can be circular, square, or elliptical in shape. The first deformable structure 31 and the container 30 can be connected by welding, bonding, or hot-melt connection.

[0040] In some specific embodiments, the second air pressure balancing component includes a second deformable structure 40, which is disposed on the lamp housing 10 to deform as the pressure in the lamp cavity 20 changes to balance the air pressure in the lamp cavity 20. When the air pressure in the lamp cavity 20 is high, the second deformable structure 40 bulges outward from the lamp cavity 20. Figure 2 The dotted line shown in the lower middle part is used to reduce the explosion phenomenon caused by the increase of air pressure in the lamp cavity 20; when the air pressure in the lamp cavity is low, the second deformable structure 40 protrudes into the interior of the lamp cavity 20, as shown in FIG. Figure 2 The upper dotted line shown in FIG can reduce the occurrence of damage to the lamp housing 10 caused by the reduction of pressure in the lamp cavity 20. The second deformable structure 40 and the lamp housing 10 can be connected by welding or hot melting.

[0041] In order to reduce moisture in the lamp cavity 20 , an anti-fog coating is provided on the inner wall of the lamp cavity 20 .

[0042] In addition, the present invention also discloses a car, including the headlights of the above embodiment, and thus has all the technical effects of the above headlights, which will not be described in detail here.

[0043] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0044] As used in this application and the claims, unless the context clearly indicates an exception, the terms "a," "an," "an," and / or "the" are not intended to refer to the singular and may include the plural, unless the context clearly indicates otherwise. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements. The phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, product, or apparatus that includes the elements.

[0045] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0046] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help you understand the core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A vehicle lamp, characterized in that: include: A lamp housing (10), wherein the lamp housing (10) forms a sealed lamp cavity (20) for accommodating a light-emitting component; An air pressure balancing device, the air pressure balancing device comprising at least one of a first air pressure balancing component and a second air pressure balancing component, the first air pressure balancing component being arranged in the lamp cavity (20) to absorb air in the lamp cavity (20) or release air into the lamp cavity (20); the second air pressure balancing component being arranged on the lamp housing (10) to balance the air pressure in the lamp cavity (20) by changing the volume of the lamp cavity (20); a desiccant, the desiccant being disposed in the lamp cavity (20); The first air pressure balancing component is arranged in the lamp cavity (20), and absorbs part of the air in the lamp cavity (20) when the air pressure in the lamp cavity (20) increases, and can release air into the lamp cavity (20) when the pressure in the lamp cavity (20) decreases, so as to balance the air pressure in the lamp cavity (20).

2. The vehicle lamp according to claim 1, wherein: The first air pressure balancing component includes a container (30) arranged in the lamp cavity (20), the container (30) contains dry air, a first deformable structure (31) is provided on the container (30), and the first deformable structure (31) is provided with an opening. When there is a pressure difference between the lamp cavity (20) and the container (30), the opening can be opened, and the container (30) can absorb the air in the lamp cavity (20) or release the air in the container (30) to the lamp cavity (20).

3. The vehicle lamp according to claim 2, wherein: The opening is a slit provided on the first deformable structure (31).

4. The vehicle lamp according to claim 3, wherein: A heat insulating material is provided on the outer wall of the container (30).

5. The vehicle lamp according to any one of claims 2 to 4, characterized in that: The container (30) is arranged in a position in the lamp cavity (20) away from the light-emitting component.

6. The vehicle lamp according to claim 5, wherein: The container (30) is detachably connected to the lamp housing (10) or non-detachably connected.

7. The vehicle lamp according to claim 2, wherein: The shape of the first deformable structure (31) includes one of a circle, a square and an ellipse.

8. The vehicle lamp according to claim 1, wherein: The second air pressure balancing component comprises a second deformable structure (40), and the second deformable structure (40) is arranged on the lamp housing (10) so as to deform in response to pressure changes in the lamp cavity (20).

9. The vehicle lamp according to claim 1, wherein: An anti-fog coating is provided on the inner wall of the lamp housing (10).

10. An automobile, comprising a headlight, wherein the headlight is the headlight according to any one of claims 1 to 9.

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