One-way breathable cover with high applicability

Abstract

The utility model discloses a one-way breathable cover with strong applicability, which comprises a TPV (thermoplastic vulcanizate) supporting piece, a plurality of elastic extrusion lugs, a plurality of elastic ventilation holes and a plurality of elastic ventilation holes, and is characterized in that the TPV supporting piece is provided with a central through hole and the outer wall is provided with a plurality of spaced elastic extrusion lugs; the one-way valve is mounted in the central through hole; the waterproof breathable film is pressed and welded at the upper end of the central through hole; the protective cover is covered on the TPV supporting piece; and the inner wall of the protective cover is pressed against the elastic extrusion convex block. The waterproof ventilation cover with the one-way valve is arranged, so that air pressure in the lamp can be leaked outwards, external moisture cannot enter the lamp, and the waterproof ventilation effect is achieved, and the moisture cannot enter the lamp.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle lamp ventilation covers, in particular to a one-way ventilation cover with strong applicability. Background Art

[0002] Headlights are constantly exposed to a variety of climates, road conditions, and environments that may affect vehicle performance. Water splashes, humidity, car oil, road debris, dust, etc. can degrade the performance of headlights, affecting appearance and safety. Rapid temperature drops can cause internal pressure to drop, which can draw in pollutants, increase fogging, and potentially cause headlight failure.

[0003] To this end, technicians in the relevant technical field have made improvements. For example, Chinese patent application number CN201810889713.6 proposed "a large-air-permeable waterproof plug for a headlight with waterproof and breathable material, comprising: a rubber body with a through hole, an outer shell with a breathable channel and a waterproof and breathable material, the waterproof and breathable material is arranged at one end of the through hole of the rubber body, and the rubber body is assembled in the breathable channel of the outer shell." Although the invention can meet the requirements of being able to quickly convect the air in the headlight with the external atmosphere to discharge moisture, so that the electrical performance is not affected by the humid air environment, and eliminate the mirror or The phenomenon of fogging and condensation on the smooth surface of electronic components enables the optical performance of automobile lamps to be brought into play; however, the technical solution in the application document still has shortcomings. For example, the non-woven fabric and PVDF electrospun fiber membrane composite material in the device is waterproof and bidirectionally breathable. Although the composite material can isolate pollutants such as dust, rain, snow, and automobile exhaust from the outside of the lamp, if the lamp is in a hot and humid environment, moisture in the gaseous form in the outside air can still easily enter the lamp through the composite material, thereby causing adverse effects on the internal cushion components and lighting conditions, or causing the lamp to fog.

[0004] Based on this, the utility model designs a one-way waterproof and breathable cover for automobile lights to solve the above problems. Utility Model Content

[0005] In view of this, the technical problem to be solved by the utility model is to provide a one-way breathable cover with strong applicability, which is used to avoid the problem that the air pressure inside the lamp cannot be released to the outside, and the external moisture can easily enter the inside of the lamp, resulting in poor waterproof, breathable and hygroscopic properties.

[0006] In order to solve the above technical problems, the utility model discloses a one-way ventilated cover with strong applicability, comprising:

[0007] A TPV support member, wherein the TPV support member has a central through hole and an outer wall thereof has a plurality of elastic extrusion protrusions spaced apart from each other;

[0008] A one-way valve installed in the central through hole;

[0009] A waterproof and breathable membrane pressed and welded to the upper end of the central through hole;

[0010] The protective cover is arranged on the TPV support member, and the inner wall of the protective cover presses against the elastic extrusion protrusion.

[0011] According to one embodiment of the utility model, the above-mentioned central through hole is configured as a stepped hole, and the hole diameter at the lower end is smaller than the hole diameter at the upper end. The one-way valve is configured as a steel ball falling on the upper part of the stepped hole, and the diameter of the steel ball is larger than the hole diameter at the lower end and smaller than the hole diameter at the upper end.

[0012] According to one embodiment of the utility model, the above-mentioned central through hole is set as a stepped hole, and the hole diameter at the lower end is smaller than the hole diameter at the upper end. The one-way valve includes a fixing ring, which is accommodated in the upper part of the stepped hole and has a gap with the lower part. The gap accommodates the silicone rubber sheet. A cross cut is opened on the central surface of the silicone rubber sheet, and when the silicone rubber sheet is in a static state, the cross cut is closed. When the bottom of the silicone rubber sheet is under pressure, the center of the silicone rubber sheet arches upward and the cross cut is opened.

[0013] According to an embodiment of the utility model, the fixing ring is interference-fitted with the central through hole and presses against the silicone rubber sheet.

[0014] According to an embodiment of the utility model, there is a gap between the protective cover and the waterproof breathable membrane.

[0015] According to one embodiment of the utility model, the waterproof and breathable membrane is configured as a PTFE membrane.

[0016] Compared with the prior art, the utility model can obtain the following technical effects:

[0017] When the pressure inside the lamp is less than 0.5Kpa, the steel ball is in a sealed state at the bottom, and external moisture cannot enter; similarly, the silicone rubber sheet is in a static sealed state, the cross cut does not expand, and external moisture cannot enter.

[0018] When the lamp is working, the light source of the lamp generates heat energy, which causes the pressure inside the lamp to gradually increase. When the pressure is greater than 0.5Kpa, the steel ball of the one-way valve is lifted up by the air pressure and the air pressure is released outwards; similarly, the center of the silicone rubber sheet arches upwards, the cross cut opens, and the air pressure is released outwards.

[0019] (Note: When a completely sealed LED headlight is turned on for one hour with both high and low beams, the maximum internal pressure is ≥8KPa)

[0020] Due to the waterproof and breathable membrane, external water, dust, and other tiny particles and reagents cannot enter the one-way breathable cover.

[0021] The released pressure can be customized according to customer requirements, with wide application and strong applicability.

[0022] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0024] Figure 1 This is a schematic diagram of a one-way ventilated cover with strong applicability according to an embodiment of the utility model;

[0025] Figure 2 It is a schematic diagram of a one-way ventilated cover with strong applicability in another embodiment of the utility model;

[0026] Figure 3 yes Figure 2 Schematic diagram of the silicone rubber sheet.

[0027] Figure ID

[0028] TPV support 10 , central through hole 11 , elastic extrusion protrusion 12 , one-way valve 20 , waterproof breathable membrane 30 , protective cover 40 , steel ball 50 , fixing ring 60 , silicone rubber sheet 70 , cross cut 80 . DETAILED DESCRIPTION

[0029] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0030] Please refer to Figure 1 , Figure 1 It is a schematic diagram of a one-way ventilated cover with strong applicability according to an embodiment of the utility model.

[0031] As shown in the figure, a one-way breathable cover with strong applicability includes: a TPV support member 10, the TPV support member 10 has a central through hole 11, and the outer wall has a plurality of spaced elastic extrusion protrusions 12; a one-way valve 20 installed in the central through hole 11; a waterproof breathable membrane 30 pressed and welded to the upper end of the central through hole 11; a protective cover 40 covered on the TPV support member 10, and the inner wall of the protective cover 40 presses against the elastic extrusion protrusion 12.

[0032] In one embodiment of the utility model, the TPV support member 10 has a central through hole 11, which is sleeved on the waterproof and breathable cover of the automobile lamp and is sleeved on the outside with a protective cover 40. A one-way valve 20 is arranged inside the central through hole 11. When the lamp generates heat and the air pressure increases during operation, the air pressure inside the lamp can be released to the outside, that is, the pressure is released from the waterproof and breathable membrane 30 through the elastic extrusion protrusions 12. At the same time, the waterproof and breathable membrane 30 is welded at the top to ensure that external moisture will not enter the interior of the lamp, thereby playing a role in waterproof and breathable, and moisture cannot enter the interior of the lamp.

[0033] Please refer to Figure 1 Preferably, the central through hole 11 is set as a stepped hole, and the aperture of the lower end is smaller than the aperture of the upper end. The one-way valve 20 is set as a steel ball 50 falling on the upper part of the stepped hole. The diameter of the steel ball 50 is larger than the aperture of the lower end and smaller than the aperture of the upper end. When the pressure inside the lamp is less than 2Kpa, the steel ball 50 is in a sealed state at the bottom, and external moisture cannot enter. When the lamp is working, the light source of the lamp generates heat energy, so that the pressure inside the lamp gradually increases. When the pressure is greater than 2Kpa, the steel ball 50 of the one-way valve 20 is lifted up by the air pressure, and the air pressure is released outward, thereby achieving a breathable and dehumidifying effect. In addition, due to the action of the waterproof breathable membrane 30, external water, dust, and other tiny particles and reagents cannot enter the one-way breathable cover, which is safe, stable and durable.

[0034] Next, please continue to refer to Figure 2 and Figure 3 , Figure 2 It is a schematic diagram of a one-way ventilated cover with strong applicability in another embodiment of the utility model; Figure 3 yes Figure 2 Schematic diagram of a silicone rubber sheet. Preferably, the central through hole 11 is set as a stepped hole, and the aperture of the lower end is smaller than that of the upper end. The one-way valve 20 includes a fixing ring 60, which is accommodated in the upper part of the stepped hole and has a gap with the lower part. The gap accommodates a silicone rubber sheet 70. The silicone rubber sheet 70 is supported by the lower part of the central through hole 11, and a cross cut 80 is provided on the central surface thereof. When the silicone rubber sheet 70 is in a stationary state, the cross cut 80 is squeezed and closed. When the bottom of the silicone rubber sheet 70 is compressed, that is, when the lamp starts to work and releases heat energy and pressure, the center of the silicone rubber sheet 70 arches upward and the cross cut 80 opens, thereby achieving the function of one-way moisture removal and ventilation.

[0035] Furthermore, the fixing ring 60 is interference-fitted with the central through hole 11 and presses against the silicone rubber sheet 70 to ensure the stability of the silicone rubber sheet 70 .

[0036] The protective cover 40 of the present invention has a gap with the waterproof breathable membrane 30 to facilitate ventilation.

[0037] In addition, the waterproof and breathable membrane 30 is configured as a PTFE membrane, which has good waterproof and breathable effects.

[0038] In summary, the utility model provides a waterproof and breathable cover with a one-way valve 20, so that the air pressure inside the lamp can be released to the outside, but the external moisture will not enter the interior of the lamp, playing the role of waterproof and breathable, and moisture cannot enter the interior of the lamp.

[0039] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A one-way breathable cover with strong applicability, characterized in that: include: A TPV support member, wherein the TPV support member has a central through hole and an outer wall has a plurality of spaced elastic extrusion protrusions; a one-way valve installed in the central through hole; A waterproof and breathable membrane pressed and welded to the upper end of the central through hole; A protective cover is arranged on the TPV support member, and an inner wall of the protective cover presses against the elastic extrusion protrusion.

2. The one-way ventilated cover with strong applicability according to claim 1, characterized in that: The central through hole is configured as a stepped hole, and the hole diameter at the lower end is smaller than the hole diameter at the upper end. The one-way valve is configured as a steel ball falling on the upper part of the stepped hole, and the diameter of the steel ball is larger than the hole diameter at the lower end and smaller than the hole diameter at the upper end.

3. The one-way ventilated cover with strong adaptability according to claim 1, characterized in that: The central through hole is configured as a stepped hole, and the hole diameter at the lower end is smaller than the hole diameter at the upper end. The one-way valve comprises a fixing ring, which is accommodated in the upper portion of the stepped hole and has a gap with the lower portion. The gap accommodates a silicone rubber sheet. A cross cut is provided on the central surface of the silicone rubber sheet, and when the silicone rubber sheet is in a stationary state, the cross cut is closed. When the bottom of the silicone rubber sheet is pressurized, the center of the silicone rubber sheet arches upward and the cross cut is opened.

4. The one-way ventilated cover with strong adaptability according to claim 3, characterized in that: The fixing ring is interference-fitted with the central through hole and presses against the silicone rubber sheet.

5. The one-way ventilated cover with strong adaptability according to claim 1, characterized in that: A gap is formed between the protective cover and the waterproof breathable membrane.

6. The one-way ventilated cover with strong adaptability according to claim 1, characterized in that: The waterproof and breathable membrane is configured as a PTFE membrane.

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