JP5824026B2 - Rear lamp device for vehicle - Google Patents

Description

  The present invention relates to a vehicle lamp device for a rear part of a vehicle having a lamp body provided with a vent for preventing fogging generated inside a housing.

  Vehicles such as automobiles are provided with lamps at the front and rear of the vehicle. The lamp body has a light source inside the housing, and the front of the light source is covered with a lens. A technique is known in which a lamp body in which the front of such a light source is covered with a lens is provided at the front of the vehicle (see, for example, Patent Document 1).

  In the technique disclosed in Patent Document 1, a lamp is provided at the front of a vehicle. In the lamp body, a light source is provided inside a housing attached to the vehicle body, and the light source is covered by an inner lens and an outer lens provided at a front portion of the housing. The inside of the housing is a closed space, and the temperature in the housing rises due to solar radiation, so the lens may become cloudy due to a temperature difference between the inside air and outside air in the housing or moisture.

  Ventilation holes are provided in the upper and lower parts of the inner lens, respectively, and air between the inner lens and the outer lens is convected into the housing. Also, a vent is provided in the rear part of the housing, so that heat accumulation and moisture in the housing are discharged to the outside. The lamp body disclosed in Patent Document 1 is provided at the front portion of a vehicle, and generally the rear of the lamp body is an engine room. Since the engine room communicates with the outside of the vehicle, heat accumulation and moisture in the housing are discharged to the outside of the vehicle through the vent at the rear of the housing.

  Some lamps are provided at the rear of the vehicle. In this case, the rear part of the lamp body faces the outside of the vehicle, and the front part of the lamp body faces the vehicle interior or communicates with the vehicle interior via the trunk room. Moisture in the passenger compartment can enter the lamp. For this reason, it is preferable to discharge the heat accumulation and moisture in the housing even in the lamp body at the rear of the vehicle. On the other hand, it is conceivable to provide a vent on the front surface (back surface) of the housing.

  However, just providing a vent hole in the housing of the lamp body as in the technique of Patent Document 1, the moisture in the housing is hindered by the conditioned air flowing in the passenger compartment and is not easily discharged from the vent hole.

JP 61-80503 A

  It is an object of the present invention to provide a rear lamp body for a vehicle that can ventilate the inside and outside of the lamp body and reduce the influence of conditioned air flowing in the passenger compartment. And

The invention according to claim 1, the housing of the rear lighting of the vehicle, at the rear lighting body apparatus for a vehicle having a light source mounted on top of the inner housing, said rear lighting body, and outside A gasket is provided for sealing between the inside of the housing, and the housing is provided with a rib-like annular seal line portion for contacting the vehicle body via the gasket , and vents the inside and outside of the housing. The seal line portion is formed so as to surround the light source, the interior of the housing communicates with the vehicle compartment via the vent , and the vent is a horizontally long It is formed in a rectangular shape, is located in the vicinity of the uppermost portion inside the seal line portion, and is located on the back surface of the gasket as viewed from the vehicle compartment .

  As described in claim 2, preferably, a reflector is provided around the light source in the interior of the housing, and the vent is located in a portion of the housing that does not have the reflector.

  More preferably, a heat-resistant plate is provided above the light source in the interior of the housing, and the vent is provided in the vicinity of the heat-resistant plate.

  In the invention according to claim 1, the rear lamp body has a gasket that seals between the interior of the vehicle and the housing, and the housing is provided in the housing and has a rib-like seal line portion for contacting the gasket. And a vent for ventilating the inside and outside of the housing. Since the vent is located in the vicinity of the uppermost part of the seal line part, it is possible to ventilate the inside and outside of the upper part of the lamp body where heat is likely to be accumulated.

  In addition, since it is located on the back side of the gasket as viewed from the inside of the vehicle, the air passage from the air vent to the inside of the vehicle becomes a maze-like passage, and the air in the vehicle interior is difficult to enter the air vent directly. The influence can be reduced. In addition, since the vent is formed in a horizontally long rectangular shape, it is possible to secure a passage area of the vent and prevent insects from entering the housing.

  In the invention which concerns on Claim 2, the reflector is provided in the circumference | surroundings of the light source in the inside of a housing. Since the vent is located in a part of the housing that does not have a reflector, it does not affect the shape of the reflector, and the reflected light emitted from the light source to the rear of the vehicle by the reflector can be properly maintained. it can.

  In the invention which concerns on Claim 3, the heat-resistant board is provided above the light source in the inside of a housing. Since the air vent is provided in the vicinity of the heat-resistant plate, the air in the vicinity of the heat-resistant plate that is likely to accumulate heat can be easily discharged, and the heat can be efficiently exhausted.

1 is a perspective view of a rear part of a vehicle to which a rear lamp device according to the present invention is attached. FIG. 2 is a sectional view taken along line 2-2 of FIG. FIG. 2 is a perspective view showing a state where an outer lens is removed from the rear lamp body shown in FIG. 1. FIG. 4 is a rear view of the rear lamp body shown in FIG. 3. It is a rear view of the state which attached the gasket to the lamp | ramp for rear parts shown by FIG. It is a principal part enlarged view of the lamp | ramp for rear parts shown by FIG. It is an effect | action figure of the lamp | ramp for rear parts shown by FIG.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. Note that “front (Fr)”, “rear (Rr)”, “left (L)”, and “right (R)” follow the direction seen from the driver.

First, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the vehicle 10 is a so-called sedan type automobile, for example. The vehicle 10 includes a vehicle body 11 and left and right rear lamp bodies 21 (only the left rear lamp body 21 is shown) provided at the left and right rear end portions of the vehicle body 11. The vehicle body 11 includes a roof 13 that covers the upper side of the vehicle compartment 12, left and right vehicle body side portions 14 (only the left side portion 14 is shown) that cover the side of the vehicle compartment 12 in the vehicle width direction, and a trunk room 12 (vehicle compartment 12. A vehicle body rear surface portion 15 that covers a rear portion of the vehicle body.

  A vehicle rear lamp device 20 is provided at the rear of the vehicle 10, and the vehicle rear lamp device 20 includes a part of a vehicle body 11 and left and right rear lamp devices 21. A rear glass 16 is formed from the rear end portion of the roof 13 to the rear, and a trunk hood 17 that covers the trunk room 12 (vehicle compartment 12) from the rear end portion of the rear glass 16 is provided to be openable and closable.

  The left rear lamp body 21 continues from the side surface portion 22 formed flush with the left vehicle body side surface portion 14, the rear surface portion 23 formed flush with the vehicle body rear surface portion 15, and the upper surface of the trunk hood 17. And an upper surface portion 24 formed flush with the upper surface 18 of the vehicle body 11. The upper side of the left rear lamp 21 is a turn signal lamp 25, and the lower side of the left rear lamp 21 is a brake lamp 26.

  In the embodiment, the turn signal lamp 25 is disposed on the upper side of the left rear lamp body 21 and the brake lamp 26 is disposed on the lower side. However, the present invention is not limited thereto, and the turn signal lamp is disposed on the lower side. The brake lamp (tail lamp) may be arranged on the upper side, and the arrangement may be changed as appropriate. For the sake of convenience, the left rear lamp 21 has been described, but the right rear lamp has the same configuration and will not be described.

  As shown in FIGS. 2 and 3, a rear lamp device 20 for a vehicle is provided at the rear of the vehicle 10. The left rear lamp body 21 includes a housing 31 attached to the vehicle body 11, a first light source 41 for the turn signal lamp 25 attached to an upper portion 32 inside the housing 31, and a brake attached to a lower portion 33 of the housing 31. A second light source 42 for the lamp 26 and lenses 43 and 44 covering the rear portion of the housing 31 are provided.

  In the embodiment, the first light source 41 is a bulb that emits light and generates heat, and the second light source 42 is an LED. However, the present invention is not limited to this, and both the first light source 41 and the second light source 42 are used. It may be a bulb or LED that generates heat. In the embodiment, the lens 43 is divided into the lens 43 on the turn signal lamp 25 side and the lens 44 on the brake lamp 26 side. However, the lens 43 and the lens 44 may be integrated.

  The upper portion 32 of the housing 31 includes a bottom surface portion 34, a back surface portion 35, a top surface portion 36, and an inner wall portion 37 formed on the inner side in the vehicle width direction. The rear surface portion 35 is located at the innermost position inside the housing 31 and is provided with a socket mounting portion 35a where the socket 41a of the first light source 41 is provided. The reflector 35b has a concave portion 35c that is positioned higher than the reflector 35b and slightly recessed forward of the vehicle.

  A vent 45 for ventilating the inside and outside of the housing 31 is formed in the recess 35c. The vent 45 is formed in a horizontally long rectangular shape and is positioned higher than the first light source 41.

  The reflector 35 b is provided around the first light source 41 inside the housing 31. The vent hole 45 is located in a portion of the housing 31 that does not have the reflector 35b, and more specifically, is located above the reflector 35b.

  A heat-resistant plate 46 is provided on the top surface portion 36 inside the housing 31. The heat-resistant plate 46 is provided from the concave portion 35 c to the rear end of the top surface portion 36 and is located above the first light source 41. The vent 45 is provided in the vicinity of the heat-resistant plate 46.

  A seal line portion 48 is provided on the outer surface 47 of the housing 31. (Details will be described later.) Although the temperature in the housing 31 in the space closed by solar radiation rises and heat tends to be trapped in the upper part 32 in the interior of the housing 31, Since the air vent 45 is provided in the vicinity of 46, high-temperature air can be efficiently discharged from the air vent 45. As a result, the air in the upper portion 32 inside the housing 31 is convected to reduce the temperature difference between the inside and outside of the lens 43, so that the upper surface portion 24 of the lens 43 can be prevented from being fogged. Further, even when the temperature in the housing 31 rises due to the heat from the first light source 41 and the heat from the heat-resistant plate 46, hot air can be efficiently discharged from the vent 45. .

  A second light source 42 is provided in the lower portion 33 inside the housing 31. Specifically, the socket 42a of the second light source 42 is attached to the socket attachment portion 38 of the lower portion 33 of the housing 31, and the second light source 42 is supported by the board 42b extending from the socket 42a. A reflector 39 is provided at the lower portion 33 of the housing 31.

  As shown in FIGS. 2, 4, and 5, the outer surface 47 of the housing 31 on the vehicle front side is provided with a rib-like annular seal line portion 48 (hereinafter referred to as an annular rib 48). . The annular rib 48 is formed so as to surround the socket mounting portion 35a of the first light source 41 and the socket mounting portion 38 of the first light source 42, and protrudes forward of the vehicle. The vent hole 45 is located in the vicinity of the uppermost portion of the rib 48 and is formed in a horizontally long rectangular shape along the rib 48.

  An annular gasket 51 is provided at the tip of the annular rib 48 along the shape of the rib 48. The annular rib 48 is in contact with the vehicle body 11 via the gasket 51. For this reason, rainwater or the like from outside the vehicle can be prevented from entering the inside of the housing 31 from the socket mounting portion 35 a of the first light source 41 and the socket mounting portion 38 of the second light source 42.

  The vent 45 is formed inside the annular rib 48. For this reason, rainwater or the like from outside the vehicle can be prevented from entering the housing 31 through the vent 45. The vent 45 is formed in a horizontally long rectangular shape along the rib 48 in the vicinity of the upper portion of the annular rib 48.

  There is a slight gap between the socket 41a of the first light source 41 and the socket mounting portion 35a. There is a slight gap between the socket 42 a of the second light source 42 and the socket mounting portion 38. The vehicle interior 12 and the interior of the housing 31 communicate with each other through the vent 45, the socket mounting portion 35 a, and the socket mounting portion 38.

  The width of the gasket 51 is larger than the width of the rib 48. In the vicinity of the vent 45, the gasket 51 hangs down from the rib 48. For this reason, the vent hole 45 is located on the back surface of the gasket 51 when viewed from the inside of the vehicle 10 (the vehicle compartment 12). As a result, a maze-like air passage 52 is formed from the air vent 45 to the inside of the vehicle 10 (the vehicle compartment 12).

  Hot air in the upper portion 32 inside the housing 31 can be discharged from the vent 45 to the vehicle interior 12. On the other hand, as for the amount of air discharged from the upper portion 32 inside the housing 31, the air in the vehicle compartment 12 enters the housing 31 through the gap between the socket mounting portions 35a and 38. For this reason, the air inside the housing 31 can be convected.

  As shown in FIG. 6, the air vent 45 is formed in a horizontally long rectangular shape when viewed from the inside of the vehicle 10 (see FIG. 2). The lateral width of the vent 45 is L1. The vertical width of the vent 45 is L2, and L2 <L1. The vertical width L2 is preferably 1 mm or less. For this reason, by setting the vertical width L2 to be smaller than the horizontal width L1, insects and the like can be prevented from entering the housing 31. Further, by setting the horizontal width L1 to be larger than the vertical width L2, the flow passage area of the vent hole 45 can be increased, and ventilation from the inside of the housing 31 to the vehicle compartment 12 can be performed satisfactorily.

Next, the operation of the above-described rear lamp device 20 of the vehicle will be described.
As shown in FIG. 7, the hot air inside the housing 31 flows into the vent 45 as indicated by the arrow a, passes through the labyrinth vent 52, and is discharged into the vehicle compartment 12 as indicated by the arrow b. On the other hand, even if the air in the passenger compartment 12 comes toward the vent 45, the gasket 51 is returned as a barrier as indicated by the arrow c. For this reason, even if the humid air in the vehicle compartment 12 flows by the conditioned air, the air in the vehicle compartment 12 can be reduced from entering the vent hole 45 directly. As a result, the lens 43 can be prevented from being fogged.

  Thus, the rear lamp device 20 of the vehicle includes the left rear lamp 21, the gasket 51, a part of the vehicle body 11, and the vehicle compartment 12 (trunk room 12). The interior of the housing 31 is the vehicle compartment 12. It is suitable for the structure which communicates with.

The rear lamp device 20 for the vehicle described above will be collectively described below.
As shown in FIG. 2, the vent 45 is located in the vicinity of the uppermost portion of the seal line portion 48, so that it is possible to ventilate the inside and outside in the upper part of the rear lamp body 21 where heat is likely to be accumulated due to solar radiation. . Further, since it is located on the back surface of the gasket 51 as viewed from the inside of the vehicle 10, a maze-shaped passage is formed from the vent 45 to the inside of the vehicle, and the air in the passenger compartment 12 is difficult to enter the vent 45 directly. The influence of the conditioned air flowing in the chamber 12 can be reduced. Further, since the vent hole 45 is formed in a horizontally long rectangular shape, it is possible to secure a flow path area of the vent hole 45 and prevent insects from entering the housing 31.

  As shown in FIGS. 3 and 4, the vent 45 is located in a portion of the housing 31 that does not have the reflector 35 b, so that the first shape does not affect the shape of the reflector 35 b. The reflected light emitted from the light source 41 to the rear of the vehicle by the reflector 35b can be kept appropriate.

  As shown in FIGS. 3 and 4, a heat-resistant plate 46 is provided above the first light source 41 in the interior of the housing 31. Since the air vent 45 is provided in the vicinity of the heat-resistant plate 46, the air in the vicinity of the heat-resistant plate 46 where heat can be easily accumulated can be easily discharged, and the heat can be efficiently exhausted.

  In the embodiment, the rear lamp device 20 of the vehicle is mounted on a so-called sedan type automobile, but is not limited thereto, a three-door type automobile, a five-door type automobile, a minivan type automobile, etc. The type of vehicle is not limited as long as the interior of the housing of the rear lamp body communicates with the passenger compartment.

  The rear lamp body device of the vehicle according to the present invention is suitable for a vehicle having a lamp body provided with an air vent that prevents fogging generated inside the housing.

  DESCRIPTION OF SYMBOLS 10 ... Vehicle, 11 ... Car body, 12 ... Vehicle compartment, 20 ... Rear lamp body device of vehicle, 21 ... Rear lamp body, 31 ... Housing, 32 ... Upper part, 35b ... Reflector, 41 ... First light source, 45 ... vent hole, 46 ... heat-resistant plate, 48 ... seal line part (rib), 51 ... gasket.

Claims (3)

In a vehicle rear lamp device having a housing of a vehicle rear lamp body and a light source attached to an upper portion inside the housing,
The rear lamp body has a gasket for sealing between the outside of the vehicle and the inside of the housing,
The housing has a rib-shaped annular seal line portion provided in the housing for contacting the vehicle body via the gasket , and a vent for ventilating the inside and outside of the housing,
The seal line portion is formed so as to surround the light source,
The interior of the housing communicates with the passenger compartment through the vent,
The vent is formed in a horizontally long rectangular shape, is located in the vicinity of the uppermost portion inside the seal line portion, and is located on the back surface of the gasket as viewed from the vehicle compartment. The rear lamp device for the vehicle. A reflector is provided around the light source in the housing,
2. The vehicle rear lamp device according to claim 1, wherein the vent is located in a portion of the housing that does not have the reflector. 3. A heat-resistant plate is provided above the light source in the housing,
The rear lamp body device for a vehicle according to claim 1, wherein the vent hole is provided in the vicinity of the heat-resistant plate.

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