Vehicular lighting fixture

Abstract

To provide a vehicular lighting fixture capable of storing a desiccant effectively and compactly in a lamp chamber.SOLUTION: A vehicular lighting fixture includes: a lamp body 11; an outer cover; a lamp chamber formed by the lamp body 11 and the outer cover; a first desiccant pack 17 and a second desiccant pack 18 connected with each other by a bendable connection part 19; a desiccant arrangement space 16 provided in a lamp chamber; and a first standing wall 22 erected at the lamp body 11. The first desiccant pack 17 and the second desiccant pack 18 folded by the bending of the connection part 19 sandwich the first standing wall 22, and by hooking the connection part 19 to the first standing wall 22, the first desiccant pack 17 and the second desiccant pack 18 are locked in the lamp chamber.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a vehicle lamp. [Background technology]

[0002] Conventionally, a vehicle lamp is known in which a desiccant is placed in a lamp chamber that is composed of a lamp body and an outer cover in order to reduce the humidity in the lamp chamber (see, for example, Patent Document 1). As the desiccant, for example, a mixture of magnesium chloride and magnesium oxide, calcium chloride, silica gel, etc. can be used. Patent Document 2 discloses that a desiccant pack, in which a desiccant is packed in a breathable bag, is fixed with double-sided tape or the like. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2008-159375 A [Patent Document 2] JP 2011-119062 A Summary of the Invention [Problem to be solved by the invention]

[0004] To increase the amount of moisture absorbed by a desiccant, the amount of desiccant must be increased, but the lamp chamber contains many components such as the light source, lens, reflector, and electrical circuit, and the space available for disposing the desiccant is limited. Also, if too much desiccant is packed into the desiccant pack, the pack becomes thick, which may reduce the moisture absorption effect.

[0005] The present invention has been made in view of the above circumstances, and has an object to provide a vehicle lamp capable of effectively and compactly storing a desiccant within the lamp chamber. [Means for solving the problem]

[0006] In order to solve the above problems, a vehicle lamp according to one embodiment of the present invention includes a lamp body, an outer cover covering a front opening of the lamp body, a lamp chamber formed by the lamp body and the outer cover, at least two desiccant packs connected to each other by a bendable connecting part, a desiccant arranging space provided in the lamp chamber, and a standing wall part erected on the lamp body in the desiccant arranging space. The two desiccant packs are locked in the lamp chamber by sandwiching the standing wall part between the two desiccant packs folded by bending the connecting part, and hooking the connecting part onto the standing wall part. Effect of the Invention

[0007] According to the present invention, it is possible to provide a vehicle lamp capable of effectively and compactly storing a desiccant within the lamp chamber. [Brief description of the drawings]

[0008] [Figure 1] 1 is a schematic perspective view of a vehicle lamp according to an embodiment of the present invention; [Diagram 2] 2(a) to 2(c) are diagrams for explaining the configuration of the first desiccant pack and the second desiccant pack. [Diagram 3] FIG. 2 is a perspective view of a main portion showing a desiccant arrangement space. [Figure 4] FIG. 2 is a diagram showing a state in which a first desiccant pack and a second desiccant pack are arranged in a desiccant arrangement space. [Diagram 5] FIG. 2 is a diagram showing a state in which the first desiccant pack and the second desiccant pack are fixed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The present invention will be described below with reference to the drawings based on preferred embodiments. The following configuration is for illustrative purposes to understand the present disclosure, and the scope of the present disclosure is determined only by the attached claims. The same or equivalent components and members shown in each drawing are given the same reference numerals, and duplicated descriptions are omitted as appropriate. The dimensions of the members in each drawing are enlarged or reduced as appropriate to facilitate understanding. Some of the members that are not important for explaining the embodiment are omitted in each drawing. In addition, when terms indicating directions such as "upper", "lower", "front", "rear", "left", "right", "inner", and "outer" are used in this specification, they refer to the directions in the posture when the vehicle lamp is mounted on the vehicle.

[0010] FIG. 1 is a schematic perspective view of a vehicle lamp 10 according to an embodiment of the present invention.

[0011] As shown in Fig. 1, a vehicle lamp 10 includes a lamp body 11 and a transparent outer cover 12 that covers a front opening of the lamp body 11. The lamp body 11 and the outer cover 12 form a lamp chamber 13. In Fig. 1, a part of the outer cover 12 is cut away to show the lamp chamber 13.

[0012] A lamp unit 14 is housed in the lamp chamber 13. The lamp unit 14 is disposed in approximately the center of the lamp chamber 13. The lamp unit 14 shown in Fig. 1 is a headlamp unit capable of emitting high beam and low beam, and therefore the vehicle lamp 10 shown in Fig. 1 is a headlamp. However, the vehicle lamp to which the present invention is applicable is not limited to a headlamp, and may be a clearance lamp, a daytime running lamp, a tail lamp, a stop lamp, a back lamp, etc.

[0013] An extension member 15 is disposed inside the lamp chamber 13. The extension member 15 is a member for hiding (making it difficult to see from outside the lamp) part of the inside of the lamp chamber 13. The extension member 15 is fixed to the lamp body 11 by fixing parts 15a provided around the periphery of the extension member 15.

[0014] In the vehicle lamp 10 according to this embodiment, a desiccant arranging space 16 is provided on the side of the lamp unit 14 in the lamp chamber 13. A first desiccant pack 17 and a second desiccant pack 18 are arranged in the desiccant arranging space 16. The first desiccant pack 17 and the second desiccant pack 18 have the role of dehumidifying the lamp chamber 13 and reducing the humidity in the lamp chamber 13. By reducing the humidity in the lamp chamber 13, it is possible to prevent the outer cover 12 from fogging up.

[0015] 2(a) to 2(c) are diagrams for explaining the configurations of the first desiccant pack 17 and the second desiccant pack 18. FIG.

[0016] FIG. 2(a) is a schematic front view of the first desiccant pack 17 and the second desiccant pack 18, and FIG. 2(b) is a schematic cross-sectional view of the first desiccant pack 17 and the second desiccant pack 18 shown in FIG. 2(a).

[0017] Each of the first desiccant pack 17 and the second desiccant pack 18 is formed by packing a desiccant 21 into a breathable bag 20. The bag 20 may be made of, for example, a nonwoven fabric. The desiccant 21 may be, for example, a mixture of magnesium chloride and magnesium oxide, calcium chloride, silica gel, or the like.

[0018] As shown in Fig. 2(a), the first desiccant pack 17 and the second desiccant pack 18 may be rectangular in front view. In Fig. 2(b), the cross-sectional shape of the desiccant pack is rectangular for the sake of simplicity, but in reality, the cross-sectional shape of the desiccant pack is tapered toward the ends.

[0019] The amount of desiccant 21 to be put in bag 20 is arbitrary, but if one tries to put a large amount of desiccant 21 in bag 20, the external dimensions of the desiccant pack will inevitably become larger, making it difficult to secure storage space within lamp chamber 13. On the other hand, if the amount of desiccant 21 is too small, it will be difficult to achieve the required moisture absorption performance. Therefore, taking these factors into consideration, it is preferable that the amount of desiccant 21 to be put in one bag 20 be between 10g and 20g (for example, 10g).

[0020] As shown in Figures 2(a) and 2(b), the first desiccant pack 17 and the second desiccant pack 18 are connected to each other by a foldable connecting portion 19. The connecting portion 19 may be made of the same material as the bag 20. For example, when the bag 20 is made of a nonwoven fabric, the connecting portion 19 is also made of a nonwoven fabric. Figure 3(c) shows the first desiccant pack 17 and the second desiccant pack 18 folded by folding the connecting portion 19.

[0021] FIG. 3 is a perspective view of the main part of the desiccant arranging space 16. The desiccant arranging space 16 is provided around the side wall 11a of the lamp body 11. As shown in FIG. 3, in the desiccant arranging space 16, a first standing wall portion 22, a second standing wall portion 23, and a third standing wall portion 24 are provided on the bottom surface 11b of the lamp body 11. The first standing wall portion 22 is provided at the upper center of the desiccant arranging space 16. The second standing wall portion 23 is provided at the lower center of the desiccant arranging space 16. The third standing wall portion 24 is provided on the left side of the first standing wall portion 22. The lower end of the first standing wall portion 22 is provided with ribs 25 and 26 so as to protrude from the wall surfaces on both sides. In addition, a rib 27 is provided on the side wall 11a of the lamp body 11 so as to protrude from the wall surface.

[0022] 4 shows the state in which the first desiccant pack 17 and the second desiccant pack 18 are arranged in the desiccant arrangement space 16. As shown in FIG. 4, the first desiccant pack 17 and the second desiccant pack 18 are folded by bending the connecting portion 19 to sandwich the first standing wall portion 22 and the second standing wall portion 23, and the connecting portion 19 is hooked onto the upper end 22a of the first standing wall portion 22. As a result, the first desiccant pack 17 and the second desiccant pack 18 are locked in the lamp chamber 13.

[0023] Since the first standing wall 22 and the second standing wall 23 are present between the first desiccant pack 17 and the second desiccant pack 18, a certain distance is ensured between the first desiccant pack 17 and the second desiccant pack 18, and they can be prevented from coming into close contact with each other. This increases the exposed area of ​​the desiccant packs, and prevents a decrease in the moisture absorption effect. In addition, the ribs 25, 26 provided at the lower end of the first standing wall 22 prevent the first desiccant pack 17 and the second desiccant pack 18 from coming into close contact with the first standing wall 22, and thus further prevents a decrease in the moisture absorption effect.

[0024] The first desiccant pack 17 is disposed between the first and second standing wall portions 22 and 23 and the third standing wall portion 24. The second desiccant pack 18 is disposed between the first and second standing wall portions 22 and 23 and the side wall 11a of the lamp body 11. The third standing wall portion 24 and the side wall 11a restrict the first and second desiccant packs 17 and 18 from moving in a direction away from the first standing wall portion 22 due to the restoring force of the connecting portion 19.

[0025] The second desiccant pack 18 is disposed along the side wall 11a of the lamp body 11. The rib 27 provided on the side wall 11a of the lamp body 11 prevents the second desiccant pack 18 from coming into close contact with the side wall 11a, thereby preventing a decrease in the moisture absorption effect.

[0026] Fig. 5 shows the state in which the first desiccant pack 17 and the second desiccant pack 18 are fixed. As shown in Fig. 5, the first desiccant pack 17 and the second desiccant pack 18 are pressed against the lamp body 11 by the pressing member 28, so that the first desiccant pack 17 and the second desiccant pack 18 can be reliably fixed.

[0027] In this embodiment, the pressing member 28 is formed integrally with the extension member 15. This allows the first desiccant pack 17 and the second desiccant pack 18 to be fixed at the same time as the extension member 15 is attached to the lamp body 11, thereby reducing the number of assembly steps. Also, the number of parts can be reduced compared to when the pressing member 28 is a separate part.

[0028] As described above, in the vehicle lamp 10 according to the embodiment, the two desiccant packs 17, 18 connected by the connecting portion 19 are arranged in the desiccant arrangement space 16 provided in the lamp chamber 13. The two desiccant packs 17, 18 are folded and the connecting portion 19 is hooked onto the first standing wall portion 22 formed on the lamp body 11, thereby locking the two desiccant packs 17, 18. Then, the two desiccant packs 17, 18 are pressed against the lamp body 11 by the pressing member 28, thereby fixing them.

[0029] In the vehicle lamp 10 according to this embodiment, the two desiccant packs 17, 18 are folded and arranged, so that the desiccant arrangement space 16 can be made compact compared to the case where one large desiccant pack is arranged. In recent years, vehicle lamps have become smaller, so being able to make the desiccant arrangement space 16 compact is a great advantage.

[0030] In addition, in the vehicle lamp 10 according to this embodiment, the desiccant pack is not attached to the lamp body with double-sided tape or the like, so that the exposed area of ​​the desiccant pack can be made large, which is an advantage in that the moisture absorption performance of the desiccant pack can be fully demonstrated.

[0031] Furthermore, in the vehicle lamp 10 of this embodiment, the two desiccant packs 17, 18 are folded and hooked onto the first standing wall portion 22, and then the desiccant packs 17, 18 are pressed down by the pressing member 28 when the extension member 15 is attached. This makes it extremely easy to position the desiccant packs, which contributes to reducing assembly labor.

[0032] The present invention has been described above based on the embodiments. These embodiments are merely examples, and it will be understood by those skilled in the art that various modifications are possible in the combination of each component and each treatment process, and that such modifications are also within the scope of the present invention.

[0033] For example, in the above-described embodiment, two linked desiccant packs are arranged, but the number of desiccant packs is not limited to two, and multiple linked desiccant packs can be arranged.

[0034] In addition, in the above embodiment, the desiccant packs are arranged vertically, but the desiccant packs may also be arranged horizontally. [Explanation of symbols]

[0035] 10 vehicle lamp, 11 lamp body, 12 outer cover, 13 lamp chamber, 14 lamp unit, 15 extension member, 16 desiccant arrangement space, 17 first desiccant pack, 18 second desiccant pack, 19 connecting portion, 20 bag, 21 desiccant, 22 first upright wall portion, 23 second upright wall portion, 24 third upright wall portion, 28 retaining member.

Claims

1. The lamp body and an outer cover for covering a front opening of the lamp body; a lamp chamber formed by the lamp body and the outer cover; at least two desiccant packs connected together by a foldable connection; A desiccant placement space provided in the lamp chamber; a standing wall portion provided on the lamp body in the desiccant arrangement space; Equipped with The vehicle lamp is characterized in that the two desiccant packs are folded by bending the connecting portion, the two desiccant packs are sandwiched between the standing wall portion, and the connecting portion is hooked onto the standing wall portion, thereby locking the two desiccant packs within the lamp chamber.

2. 2. The vehicle lamp according to claim 1, further comprising a pressing member for pressing the two desiccant packs against the lamp body.

3. 3. The vehicle lamp according to claim 1, wherein the standing wall portion is provided with a rib that prevents the two desiccant packs from coming into close contact with the standing wall portion.

4. 3. The vehicle lamp according to claim 1, further comprising a separate standing wall portion provided on the lamp body to restrict movement of the desiccant pack in a direction away from the standing wall portion.

5. One of the two desiccant packs is disposed along a side wall of the lamp body; 3. The vehicle lamp according to claim 1, wherein the side wall of the lamp body is provided with a rib for preventing the desiccant pack from sticking closely to the side wall.

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