A luminaire and vehicle
By introducing deflectors and raised structures into automotive lights, the problem of fogging in the lamp glass is solved, thereby achieving high light transmittance and safety while reducing cost and complexity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SAIC GM WULING AUTOMOBILE CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-05
Smart Images
Figure CN224327044U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle technology, and in particular to a lamp and a vehicle. Background Technology
[0002] Automotive lights on the market generally consist of a lens, a housing, and a bulb. The lens is used to adjust the light emitted by the bulb so that the light can pass through the lens and make the light shine. Due to the pressure and temperature difference between the inside and outside of the automotive lights, fog often forms inside the lights. This fog accumulates on the lens, reducing the light transmittance and thus reducing the brightness of the lights, which affects driving safety. Utility Model Content
[0003] This application provides a lamp and a vehicle to solve the problem of fog accumulation on the lens of automotive lamps, which reduces the light transmittance of the lens and affects driving safety.
[0004] The first aspect of this application provides a lamp, which includes a lamp glass, a bulb, a lamp housing, and a deflector plate. The lamp glass is fixedly connected to the lamp housing, and the lamp glass and the lamp housing enclose a mounting cavity, and the bulb is fixed inside the mounting cavity.
[0005] The guide plate is fixed inside the mounting cavity. The guide plate includes a body, which has at least one protrusion and at least one guide hole located below the protrusion. Along the height direction of the lamp, the body is located above the bulb. The protrusion is used to block rising water vapor, and the water vapor can flow through the guide hole to the side of the guide plate away from the lamp glass.
[0006] In this design, the lamp is a vertically elongated lamp. When the lamp is in use, the bulb generates a certain amount of heat. The water vapor in the mounting cavity rises along with the heat generated by the bulb. When the water vapor rises to the protrusion, the protrusion can prevent the water vapor from rising further. Under the obstruction of the protrusion, the water vapor flows downward, guiding it through the guide hole to the side of the guide plate away from the lamp glass. This reduces the risk of water vapor accumulating at the top of the lamp glass, thereby reducing the risk of fogging on the lamp glass. This ensures that the lamp glass has good light transmittance and maintains good brightness, which is beneficial to improving driving safety.
[0007] In this solution, along the height direction of the lamp, the guide plate is provided with a plurality of protrusions at intervals, and each protrusion is provided with a guide hole near the connection between the side wall of the bulb and the body;
[0008] The distance between each adjacent protrusion is L, which satisfies 8mm≤L≤10mm.
[0009] In this design, the size of the protrusion along the width of the lamp is M, which satisfies 5mm≤M≤15mm.
[0010] In this design, the size of the guide hole is N along the width direction of the lamp, satisfying 1mm≤N≤6mm.
[0011] In this design, the guide plate is also provided with a clearance hole and a frame. The clearance hole is used to avoid the light bulb, and the frame is used to fix it to the lamp housing.
[0012] In this design, a flow channel is provided between the guide plate and the lamp housing along the height direction of the lamp.
[0013] In this solution, the size of the guide channel along the height direction of the lamp satisfies H, which is 10mm≤H≤30mm.
[0014] In this solution, the lamp housing includes a first guide section. Along the height direction of the lamp, the first guide section is inclined toward the bulb. There is a first gap between the first guide section and the guide plate to form the guide channel.
[0015] In this solution, the lamp housing further includes a second guide section and a third guide section. The second guide section is used to connect the first guide section and the third guide section. The second guide section is arranged along the height direction of the lamp, and the third guide section is inclined towards the bulb.
[0016] A second aspect of this application provides a vehicle that includes the above-described lighting fixtures.
[0017] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the lighting fixture provided in this application in one specific embodiment;
[0019] Figure 2 for Figure 1 Cross-sectional view;
[0020] Figure 3 This is a schematic diagram of the structure of the guide vane provided in this application in a specific embodiment;
[0021] Figure 4 for Figure 3 Enlarged view of a portion of the structure;
[0022] Figure 5 for Figure 3 Cross-sectional view.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1-Lighting fixtures;
[0025] 11-Lamp glass;
[0026] 12-bulb;
[0027] 13-Lamp housing;
[0028] 131 - First diversion section;
[0029] 132 - Second diversion section;
[0030] 133 - Third diversion section;
[0031] 14-Blower plate;
[0032] 141-Ontology;
[0033] 142 - Protrusion;
[0034] 143 - Flow guide hole;
[0035] 144-Frame;
[0036] 145 - Clearance hole;
[0037] 15-Flow channel.
[0038] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation
[0039] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0040] In one specific embodiment, the present application will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0041] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.
[0042] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.
[0043] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.
[0044] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.
[0045] In existing technologies, due to the pressure and temperature differences between the inside and outside of automotive lamps, fog often forms inside the lamps. This fog accumulates on the lamp glass, reducing its light transmittance and thus decreasing the lamp's brightness, affecting driving safety. Specifically, taking a vertically elongated lamp as an example, the bulb generates heat during use, causing moisture inside the lamp to rise with the heat. This moisture accumulates at the top of the lamp glass and condenses into fog upon cooling, further affecting the light transmittance. To address the problem of fogging on headlight lenses, existing technologies employ various methods. One method involves placing a desiccant inside the lamp to maintain dryness and prevent fogging. However, once saturated, the desiccant cannot absorb more moisture, resulting in a limited lifespan. Another method involves applying an anti-fog coating to the lens. This coating is water-repellent, preventing moisture from adhering and thus preventing fog from forming. However, when vehicles are in consistently humid environments, the anti-fog coating corrodes, and fog can still form on the lens. This method is unsuitable for vehicles in high-humidity environments. Yet another method involves installing a vent cap on the lamp housing to allow air circulation between the lamp's interior and exterior. When the internal air and external air reach equilibrium, fogging is prevented. However, installing vent caps on the lamp housing requires sophisticated placement, significantly increasing design costs. Furthermore, improper placement can be counterproductive. Therefore, all existing technologies have limitations.
[0046] To address the aforementioned problems, this application provides a lighting fixture 1, such as... Figures 1-4As shown, the lamp 1 includes a lamp glass 11, a bulb 12, a lamp housing 13, and a deflector plate 14. The lamp glass 11 is fixedly connected to the lamp housing 13, and the lamp glass 11 and the lamp housing 13 enclose a mounting cavity. The bulb 12 and the deflector plate 14 are both fixed in the mounting cavity. The deflector plate 14 includes a body 141. The body 141 is provided with at least one protrusion 142 and at least one deflector hole 143 located below the protrusion 142. Along the height direction Z of the lamp 1, the body 141 is located above the bulb 12. The protrusion 142 is used to block rising water vapor, and the water vapor can flow through the deflector hole 143 to the side of the deflector plate 14 away from the lamp glass 11.
[0047] Specifically, lamp 1 is a vertically elongated lamp 1. When lamp 1 is in use, bulb 12 generates a certain amount of heat. The water vapor inside the mounting cavity rises along with the heat generated by bulb 12, that is, the water vapor rises along... Figure 1 The direction of the dashed arrow is upward. When the water vapor rises to the protrusion 142, the protrusion 142 can block the water vapor from rising further. Under the obstruction of the protrusion 142, the water vapor flows downward, so as to guide the water vapor through the guide hole 143 to the side of the guide plate 14 away from the lamp glass 11. This reduces the risk of water vapor accumulating at the top of the lamp glass 11, thereby reducing the risk of fogging on the lamp glass 11, so that the lamp glass 11 has good light transmittance, and the lamp 1 maintains good brightness, which is conducive to improving driving safety.
[0048] Furthermore, by incorporating a deflector plate 14 into the lamp fixture 1, the risk of water vapor condensing into fog on the lamp glass 11 can be reduced. The structure of the deflector plate 14 is relatively simple, which helps to reduce production costs. Compared to setting a vent cap on the lamp housing 13, the deflector plate 14 only needs to be fixed between the lamp housing 13 and the lamp glass 11, reducing the arrangement process. At the same time, compared to placing a desiccant inside the lamp fixture 1, the deflector plate 14 can be used for a long time without time-limited effects, thus helping to reduce costs. In addition, compared to setting an anti-fog coating on the lamp glass 11, the lamp fixture 1 is in a relatively humid environment for a long time. The deflector plate 14 can also block water vapor from rising and guide water vapor through the deflector hole 143 to the side of the deflector plate 14 away from the lamp glass 11, reducing the risk of fog formation on the lamp glass 11 without limitations.
[0049] In addition, even if the water vapor in the installation cavity cools and forms a small amount of fog, the fog can rise with the water vapor. The protrusion 142 can also block the fog from rising, and the fog can also flow through the guide hole 143 to the guide plate 14 away from the side of the lamp glass 11.
[0050] In one possible implementation, such as Figure 4 and Figure 5 As shown, along the height direction Z of the lamp 1, the guide plate 14 is provided with a plurality of protrusions 142 at intervals, and each protrusion 142 is provided with a guide hole 143 at the connection between the side wall of the bulb 12 and the body 141.
[0051] In this embodiment, the guide plate 14 is provided with multiple protrusions 142 at intervals, which helps to improve the effect of the guide plate 14 in blocking water vapor and further reduces the risk of water vapor accumulating and condensing into fog on the top of the lamp glass 11 after rising. Specifically, when the lamp 1 is used, the bulb 12 generates a certain amount of heat, and the water vapor in the mounting cavity rises along with the heat generated by the bulb 12. When the water vapor rises to the protrusion 142, the protrusion 142 can block the water vapor from rising further, and the water vapor accumulates below the protrusion 142, that is, the water vapor accumulates near the side wall of the protrusion 142 close to the bulb 12. Then the water vapor can flow through the guide hole 143 located at the accumulation point to the guide plate 14 away from the side of the lamp glass 11, thereby greatly reducing the risk of water vapor accumulating and forming fog on the lamp glass 11, thereby effectively improving the light transmittance of the lamp glass 11 and improving the performance of the lamp 1. Meanwhile, compared to the case where the guide hole 143 is located on the body 141, that is, when the guide hole 143 is located between each adjacent protrusion 142, the guide hole 143 is located at the connection between the side wall of the protrusion 142 near the bulb 12 and the body 141. This can effectively improve the feasibility and reliability of water vapor flowing through the guide hole 143 to the guide plate 14 away from the lamp glass 11. It is also beneficial to improve the structural strength of the body 141, and thus to improve the structural stability of the guide plate 14.
[0052] Among them, such as Figure 5 As shown, the distance between each adjacent protrusion 142 is L, which satisfies 8mm≤L≤10mm. In some embodiments, the distance L can be 8mm, 8.5mm, 9mm, 9.5mm, 10mm, etc.
[0053] When the thickness is 8mm≤L≤10mm, the number of protrusions 142 on the body 141 is moderate, which effectively improves the effect of the guide plate 14 in blocking water vapor from rising, thereby effectively reducing the risk of water vapor accumulating on the top of the lamp glass 11, and thus greatly reducing the risk of fogging on the lamp glass 11, while also giving the guide plate 14 good structural strength.
[0054] In one possible implementation, such as Figure 5 As shown, along the width direction Y of the lamp 1, the size of the protrusion 142 is M, which satisfies 5mm≤M≤15mm. In some embodiments, the size M of the protrusion 142 can be 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, etc.
[0055] When the size of the protrusion 142 is moderate, it is ensured that the protrusion 142 has a good blocking effect. At the same time, this size allows the water vapor that accumulates below the protrusion 142 to flow through the guide hole 143 to the guide plate 14 away from the other side of the lamp glass 11, effectively avoiding the risk of water vapor accumulating in the lamp glass 11 and forming fog.
[0056] In one possible implementation, such as Figure 4 As shown, along the width direction Y of the lamp 1, the size of the guide hole 143 is N, which satisfies 1mm≤N≤6mm. In some embodiments, the size N of the guide hole 143 can be 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, etc.
[0057] When 1mm≤N≤6mm is satisfied, the size of the guide hole 143 is appropriate so that water vapor can flow smoothly through the guide hole 143 to the side of the guide plate 14 away from the lamp glass 11, thereby avoiding the risk of water vapor accumulating on the lamp glass 11 and forming fog. At the same time, this size is beneficial to improving the structural strength of the protrusion 142.
[0058] In one possible implementation, such as Figure 3 As shown, the deflector plate 14 is also provided with a clearance hole 145 and a frame 144. The clearance hole 145 is used to avoid the bulb 12, and the frame 144 is used to fix it to the lamp housing 13.
[0059] In this embodiment, the clearance hole 145 is used to avoid the light emitted by the bulb 12, so that the light emitted by the bulb 12 can properly illuminate the lamp glass 11, further improving the light transmittance of the lamp glass 11 and increasing the brightness of the lamp 1. At the same time, the frame 144 of the guide plate 14 is used for fixed connection of the lamp housing 13. For example, the frame 144 can be provided with threaded holes, and screws pass through the screw holes to fix the frame 144 to the lamp housing 13, improving the stability and firmness of the guide plate 14 installed in the mounting cavity.
[0060] In one possible implementation, such as Figure 2 As shown, along the height direction Z of the lamp 1, there is a flow channel 15 between the guide plate 14 and the lamp housing 13.
[0061] Specifically, when there is too much moisture in the mounting cavity, some of the moisture rises to the top of the guide plate 14. This moisture can flow through the guide channel 15 between the guide plate 14 and the lamp housing 13, reducing the risk of moisture accumulating on the top of the lamp glass 11, thereby reducing the risk of fogging on the lamp glass 11.
[0062] In addition, even if the water vapor in the installation cavity cools and forms a small amount of fog, the fog can rise with the water vapor and flow through the guide channel 15 between the guide plate 14 and the lamp housing 13, further reducing the risk of fog appearing on the lamp glass 11.
[0063] In one possible implementation, such as Figure 2 As shown, along the height direction Z of the lamp 1, the size of the guide channel 15 satisfies H, which is 10mm≤H≤30mm. In some embodiments, the size of the guide channel 15 satisfying H can be 10mm, 12mm, 14mm, 15mm, 16mm, 18mm, 20mm, 22mm, 24mm, 25mm, 26mm, 28mm, 30mm, etc.
[0064] When the dimensions of the guide channel 15 are such that 10mm≤H≤30mm are met, the water vapor can flow smoothly through the guide channel 15, while the guide plate 14 has a good blocking and diversion effect.
[0065] In one possible implementation, such as Figure 2 As shown, the lamp housing 13 includes a first guide section 131. Along the height direction Z of the lamp 1, the first guide section 131 is inclined toward the bulb 12. There is a first gap between the first guide section 131 and the guide plate 14 to form a guide channel 15.
[0066] In this embodiment, the first guide section 131 is inclined so that the first guide section 131 is used to guide the water vapor flowing through the guide channel 15 towards the guide plate 14 and the lamp glass 11. At the same time, it is beneficial to accelerate the flow of water vapor through the guide channel 15 towards the lamp housing 13, which greatly reduces the risk of water vapor accumulating on the lamp glass 11.
[0067] In one possible implementation, such as Figure 2 As shown, the lamp housing 13 also includes a second guide section 132 and a third guide section 133. The second guide section 132 is used to connect the first guide section 131 and the third guide section 133. The second guide section 132 is arranged along the height direction Z of the lamp 1, and the third guide section 133 is inclined toward the bulb 12.
[0068] In this embodiment, the first guide section 131, the second guide section 132 and the third guide section 133 can be integrally formed along the height direction Z of the lamp 1. The second guide section 132 and the third guide section 133 are used to guide downward and accelerate the downward flow of water vapor, further reducing the risk of water vapor accumulating on the top of the lamp glass 11, thereby reducing the risk of fogging in the lamp glass 11.
[0069] This application also provides a vehicle (not shown in the figure) that includes the lamp 1 in any of the above embodiments.
[0070] When the lamp 1 is used in a vehicle, the bulb 12 generates a certain amount of heat. The water vapor in the mounting cavity rises along with the heat generated by the bulb 12. When the water vapor rises to the protrusion 142, the protrusion 142 can block the water vapor from rising further. The water vapor flows downward under the obstruction of the protrusion 142, so as to guide the water vapor through the guide hole 143 to the side of the guide plate 14 away from the lamp glass 11, reducing the risk of water vapor accumulating at the top of the lamp glass 11, thereby reducing the risk of fogging on the lamp glass 11, and keeping the lamp 1 at a good brightness, which helps to improve the vehicle's lighting effect and improve the vehicle's driving safety.
[0071] The above descriptions are merely specific implementations of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the embodiments of this application should be covered within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.
Claims
1. A lamp, characterized in that, The lighting fixture includes: Light glass; Light bulb; The lamp housing has a lamp glass that is fixedly connected to it, and the lamp glass and the lamp housing together form a mounting cavity, and the light bulb is fixed inside the mounting cavity. A deflector plate is fixed inside the mounting cavity. The deflector plate includes a body, which has at least one protrusion and at least one deflector hole located below the protrusion. Along the height direction of the lamp, the body is located above the bulb. The protrusion is used to block rising water vapor, and the water vapor can flow through the deflector hole to the side of the deflector plate away from the lamp glass.
2. The lamp according to claim 1, characterized in that, Along the height direction of the lamp, the guide plate is provided with a plurality of protrusions at intervals, and each protrusion is provided with a guide hole near the connection between the side wall of the bulb and the body; The distance between each adjacent protrusion is L, which satisfies 8mm≤L≤10mm.
3. The lamp according to claim 2, characterized in that, Along the width direction of the lamp, the size of the protrusion is M, which satisfies 5mm≤M≤15mm.
4. The lamp according to claim 2, characterized in that, Along the width direction of the lamp, the size of the guide hole is N, which satisfies 1mm≤N≤6mm.
5. The lamp according to claim 1, characterized in that, The guide plate is also provided with a clearance hole and a frame. The clearance hole is used to avoid the light bulb, and the frame is used to fix it to the lamp housing.
6. The lamp according to any one of claims 1-5, characterized in that, Along the height direction of the lamp, there is a flow channel between the guide plate and the lamp housing.
7. The lamp according to claim 6, characterized in that, Along the height direction of the lamp, the size of the flow channel satisfies H, which is 10mm≤H≤30mm.
8. The lamp according to claim 6, characterized in that, The lamp housing includes a first guide section, which is inclined toward the bulb along the height direction of the lamp. A first gap exists between the first guide section and the guide plate to form the guide channel.
9. The lamp according to claim 8, characterized in that, The lamp housing further includes a second guide section and a third guide section. The second guide section is used to connect the first guide section and the third guide section. The second guide section is arranged along the height direction of the lamp, and the third guide section is inclined towards the bulb.
10. A vehicle, characterized in that, The vehicle includes the lamps as described in any one of claims 1-9.