TWM447332U - Ventilation cap for vehicle lamps - Google Patents

Description

Ventilation cover for headlights

The creation is related to the base structure of the lamp, and specifically refers to a ventilation cover for a lamp with a simple structure and convenient assembly, which can simultaneously provide functions of waterproofing, dustproof and heat dissipation.

The general lamp usually includes a base. A light source is inserted into the base and fixed inside the base. In order to avoid the infiltration of water droplets, moisture or dust, the lighting effect or the damage of the light source is affected, so the lamp must have corresponding waterproof and dustproof. Features. In addition, when the user activates the lamp to emit light, the heat generated by the light source also causes the temperature of the lamp to rise as the use time increases. Therefore, the lamp must also maintain good gas convection. In order to prevent the high heat generated by long-time illumination from accumulating in the interior of the lamp, it is easy to further shorten the service life of the light source, and may also affect the deterioration or deformation of the plastic material used in the lamp.

In other words, the lamp must have the functions of heat dissipation, waterproof and dustproof at the same time. Therefore, some manufacturers have developed a venting cover for the lamp, for example, the patent of US Pat. No. 6,634,924, the rear of the base of the lamp has a connection between the inside and the outside of the base. The air guiding tube is composed of a hollow elastic cylinder and a U-shaped cover body, and the outer peripheral surface of the elastic cylinder is provided with a plurality of protrusions, and the user must first insert the elastic cylinder into the air cylinder. Inside the cover body, at this time, the convex block of the elastic cylinder will support against the inner wall surface of the cover body and form a gas passage, and then the user puts the gas permeable cover on the air guide tube, that is, the air guide tube is inserted into the cylinder to complete the whole. Assembly work industry.

Although the above-mentioned venting cap structure can provide functions of heat dissipation, waterproofing and dustproof, the assembly time and cost of the two-piece assembly structure are still required to be further improved.

In view of this, the main purpose of the present invention is to provide a venting cover for a lamp, which is a single-piece simple structure, and is convenient to assemble, and can simultaneously provide functions of waterproofing, dustproofing, and heat dissipation.

In order to achieve the above object, the present invention provides a venting cover for a vehicle lamp, which is suitable for a base of a vehicle lamp, and an air guiding pipe connecting the inside of the base and the outside is protruded from the rear of the base, and the venting cover comprises: a cover body a hollow column shape having a closed end and an open end, the open end being capable of inserting the air duct; and a plurality of partitions protruding from the inner wall surface of the cover body to abut against the guide The outer peripheral surface of the trachea forms a gas passage between the adjacent two partitions; wherein the peripheral edge of the air guiding tube does not contact the inner wall surface of the closed end, and the peripheral edge of the open end does not contact the surface of the base to make the gas The passage connects the air duct to the outside.

In this way, the breathable cover of the present invention is a one-piece structure that is integrally formed, and can also provide functions of waterproofing, dustproofing and heat dissipation, and is more convenient to assemble and use.

A preferred design of the present embodiment is that the cross section of the cover body and the air guiding tube are both circular. Moreover, it is preferred that the spacers are equally angularly spaced and project inwardly along the diameter of the cover.

A preferred design of the present creative embodiment is such that the longitudinal length of the baffles is greater than the longitudinal length of the airway.

A preferred design of the present embodiment is to provide a slanted guide at the inner side of the partition near the open end.

A preferred design of the present embodiment is to project the base with a ring wall surrounding the venting cover.

A preferred design of the present embodiment is such that the spacers extend toward the open end to protrude from the open end.

The preferred design of the present embodiment enables the inner wall surface of the closed end to be provided with a plurality of stoppers, and the stoppers can abut against the circumference of the air guiding tube. Moreover, it is preferred that the stops are respectively disposed adjacent to the closed end and the partition.

A preferred design of the present embodiment further includes a filter element disposed in the opening of the airway.

In the following, the structure of the present invention and its intended effects are illustrated by a number of preferred embodiments, but are not intended to limit the scope of the present invention.

Referring to the first to third embodiments, a first preferred embodiment of the present invention provides a venting cover 10 for a vehicle lamp, which can be applied to a base 1 of a vehicle lamp, and the base 1 has a cylindrical shape and communicates with the base. An inner air tube 2 and an outer air tube 2 surround the air tube 2, and the air permeable cover 10 has a cover body 20, and a plurality of partition plates 30 protrude from the inside of the cover body 20.

The cover 20 is hollow cylindrical and has a closed end 21 and an open end 22, the open end 22 being capable of inserting the airway tube 2 therein. In addition, the inner wall surface of the closed end 21 of the cover body 20 is formed with a plurality of stoppers 23 and is located adjacent to the closed end 21 and the partition plate 30. The number of the stoppers 23 is in this embodiment. There are four in the middle. Moreover, the opening of the air guiding tube 20 is provided with a filter element 40. In the present embodiment, a flexible non-woven fabric is taken as an example, and the surface area of the filter element 40 is larger than the opening of the air guiding tube 20.

The plurality of partition plates 30 are inwardly protruded from the inner wall surface of the lid body 20 at equal angular intervals along the diameter direction of the lid body 20, and the inner sides of the partition plates can abut against the outer peripheral surface of the air duct 2, A gas passage A is formed together between the adjacent two partition plates.

The partitions 30 extend toward the open end 22 to project the open end 22 such that the longitudinal length of the partitions 30 is greater than the longitudinal length of the air duct 2. Therefore, the peripheral edge of the air guiding tube 2 does not contact the inner wall surface of the closed end 21, and the peripheral edge of the open end 22 does not contact the surface of the base 1, so that the gas passages A communicate with the air guiding tube 2 and the outside.

Further, the partition plates 30 are provided with an inclined guide portion 31 near the inner side of the open end 22, and can guide the air guide tube 2 when the cover body 20 is inserted.

With the above structure, the user can attach the filter element 40 to the opening of the airway tube 2 in advance, and then align the open end 22 of the cover body 20 with the air guide tube 2, and then apply the force to the cover. The body 20 is guided into the open end 22 through the guiding portions 31. Since the longitudinal length of the partitions 30 is greater than the longitudinal length of the air guiding tube 2, the user installs the air permeable cover 10 After the airway tube 2, as shown in the third figure, the filter element 40 will be placed in the opening of the airway tube 2, and the portion of the filter element 40 beyond the opening of the air tube 2 will be clamped in the guide. Between the air tube 2 and the partitions 30, the gas inside the base 1 can flow through the air duct 2 to the closed end 21 of the cover body 20, pass through the filter element 40, and then flow into between the adjacent two partitions 30. Gas passage A, finally, flows out from the gap between the open end 22 and the surface of the base 1, so that it can be used as a heat dissipation path for gas convection, and at the same time, it is also possible to prevent dust or moisture outside the base 1 and the venting cover 10 from penetrating into the base. 1 internal. In addition, the ring wall 3 of the base 1 surrounds the periphery of the air permeable cover 10, so that moisture or dust blocking the outside directly enters the gap between the open end 22 and the surface of the base 1, which can be waterproof and dustproof. Better.

It should be noted that the structure and material of the filter element 40 are merely exemplary. As long as the component or device having the opening effect of the airway tube 2 and having a filtering effect can be applied to the present invention, similar effects can be achieved.

Please refer to the fourth embodiment. The present invention provides a second preferred embodiment. The main structure is the same as that of the previous embodiment. The same components are also numbered to facilitate identification. In this embodiment, the filter component is not provided, and The partition 30 does not protrude from the open end 22, and when the user assembles the venting cover 10 to the air guiding tube 2, the stopper 23 can abut against the circumference of the air guiding tube 2, so that the air guiding tube 2 The peripheral edge is not in contact with the inner wall surface of the closed end 21 to keep the gas passage of the gas passage A.

It can be seen from the foregoing description that the breathable cover of the present invention is a one-piece structural design, which can be integrally formed by injection molding, and can be completed in a single step in assembly.

It should be noted that, in the foregoing embodiment, the venting cover is formed into a cylindrical shape by fitting the cylindrical air guiding tube, and the shape of the cover body and the partitioning manner can be simply changed by the person skilled in the art according to different air guiding tube shapes, and the same. Can achieve the effect of this creation. In addition, the foregoing embodiment is to set the longitudinal length of the partition to be larger than the longitudinal length of the air duct, but this condition is not a requirement of the creation, and the user only needs Pay attention to the assembly position of the venting cover during assembly to keep the gas passage clear, and the filter element is to improve the filtering effect of the gas passage. The structural design of the extension or the stopper is to avoid the user's lack of attention. The resulting assembly errors are also not the structural features necessary for this creation.

1‧‧‧Base

2‧‧‧ air duct

3‧‧‧Circle

10‧‧‧ breathable cover

20‧‧‧ cover

21‧‧‧closed end

22‧‧‧Open end

23‧‧‧block

30‧‧‧Baffle

31‧‧‧ Guidance Department

40‧‧‧Filter elements

A‧‧‧ gas passage

The first figure is a perspective view of the first embodiment of the creation.

The second figure is a side view of the first embodiment of the creation.

The third figure is a cross-sectional view of the first embodiment of the creation after assembly.

The fourth figure is a cross-sectional view of the second embodiment of the creation after assembly.

1‧‧‧Base

2‧‧‧ air duct

3‧‧‧Circle

10‧‧‧ breathable cover

20‧‧‧ cover

21‧‧‧closed end

22‧‧‧Open end

23‧‧‧block

30‧‧‧Baffle

31‧‧‧ Guidance Department

40‧‧‧Filter elements

A‧‧‧ gas passage

Claims (10)

The utility model relates to a ventilation cover for a vehicle lamp, which is suitable for a base of a lamp, and an air guiding pipe connecting the inside of the base and the outside is protruded from the rear of the base, and comprises: a cover body having a hollow column shape and a closed end. And an open end, the open end can be inserted into the air duct; and a plurality of partitions protruding from the inner wall surface of the cover body to be able to abut against the outer circumferential surface of the air duct, so as to be adjacent to each other A gas passage is formed between the plates; wherein the peripheral edge of the air guiding tube does not contact the inner wall surface of the closed end, and the peripheral edge of the open end does not contact the surface of the base, so that the gas passages communicate with the air guiding tube and the outside. The venting cover for a vehicle lamp according to claim 1, wherein the cover body and the air guiding tube have a circular cross section. A venting cover for a vehicle lamp according to claim 2, wherein the spacers are equally angularly spaced and project inwardly along a diameter direction of the cover. A venting cover for a vehicle lamp according to claim 1, wherein the longitudinal length of the partitions is greater than the longitudinal length of the air duct. A venting cover for a vehicle lamp according to claim 1, wherein the partition plate is provided with a slanting guide portion near the inner side of the open end. A venting cover for a vehicle lamp according to claim 1, wherein the base is further provided with a ring wall surrounding the venting cover. The venting cover for a vehicle lamp according to any one of claims 1 to 6, wherein the partitioning member extends toward the open end to protrude the open end. The venting cover for a vehicle lamp according to any one of claims 1 to 6, wherein the closed end inner wall surface is provided with a plurality of stoppers, and the stoppers can abut against the circumference of the air guiding tube edge. The venting cover for a vehicle lamp according to claim 8, wherein the stoppers are respectively disposed at an abutment of the closed end and the partition. The venting cover for a vehicle lamp according to any one of claims 1 to 6, further comprising a filter element located at an opening of the air guiding tube.