JP2018097949A - Lamp body structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lamp body structure which reduces a cord length, inhibits increase of the number of components, and may connect a cord inside a housing with a component outside the housing.SOLUTION: A lamp body structure 1 includes: a lamp body unit 20 provided with a first connector 22; a housing 31 in which an opening 31a is formed at a position corresponding to the first connector 22; a cover 40 provided with a second connector 50 and closing the opening 31a; and a harness 60 connecting the first connector 22 with the second connector 50.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a lamp structure applied to, for example, a tail lamp of a vehicle.

  Patent Document 1 discloses a configuration in which a power supply socket is provided in a lamp unit housed inside a lamp body, and a cord connected to the power supply socket is pulled out from a hole provided in the lamp body.

Japanese Patent No. 5894473

  When the lamp unit including the socket is covered with the lamp body (housing) as in the structure described in Patent Document 1, the lamp unit and the lamp body are connected to each other after the cord is attached to the socket (connector) of the lamp unit. Once assembled, it is necessary to lengthen the cord so that it can be routed during assembly work. Therefore, it is difficult to accommodate the cord inside the lamp body. Therefore, it is conceivable to attach the cord to the socket after assembling the lamp unit and the lamp body, but in that case, a work hole and a cover for closing the hole are required in the lamp body, and the number of parts is reduced. It will increase.

  The present invention has been made in view of the above points, and has a lamp structure capable of connecting a cord in a housing to a component outside the housing while suppressing a cord length and an increase in the number of components. The issue is to provide.

  In order to solve the above-described problem, the lamp structure of the present invention includes a lamp unit in which a first connector is provided, a housing in which an opening is formed at a position corresponding to the first connector, and a second connector. And a cover that closes the opening, and a cord that connects the first connector and the second connector.

  According to the present invention, in the lamp structure, the cord in the housing can be connected to the component outside the housing while suppressing the cord length and suppressing the increase in the number of components.

It is a disassembled perspective view which shows the lamp structure which concerns on embodiment of this invention. It is a front view which shows the lamp structure which concerns on embodiment of this invention. It is a front view which shows the lamp structure which concerns on embodiment of this invention, and is the elements on larger scale which show the state from which the housing was removed. It is a figure which shows the cover which concerns on embodiment of this invention, (a) is a front view, (b) is a rear view. It is a figure which shows the 2nd connector which concerns on embodiment of this invention, (a) is a front view, (b) is a rear view. (A) is a figure which shows the convex part of the upper side of the 2nd connector which concerns on embodiment of this invention, (b) is a figure which shows the convex part of the lower side of the 2nd connector which concerns on embodiment of this invention. It is sectional drawing which shows the lamp structure which concerns on embodiment of this invention.

  The embodiment of the present invention will be described in detail with reference to the drawings, taking as an example the case where the lamp structure of the present invention is applied to a tail lamp of a vehicle. In the description, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  As shown in FIG. 1, the lamp structure 1 according to the embodiment of the present invention includes a lens set 10, a lamp unit 20, and a housing 30. Moreover, as shown in FIG. 2, the lamp structure 1 includes a cover 40, a second connector 50, and a harness 60 (see FIG. 5B). In the present embodiment, the cover 40 and the second connector 50 are formed separately and assembled to each other. The cover 40 and the second connector 50 may be integrally formed.

<Lens set>
As shown in FIG. 1, the lens set 10 constitutes a housing 2 in which the lamp unit 20 is accommodated together with the housing 30. The lens set 10 is a substantially L-shaped member provided from the rear surface of the vehicle body to the side surface of the vehicle body, and includes a portion extending in the vertical direction on the rear surface of the vehicle body and a portion extending in the front-rear direction on the side surface of the vehicle body from the lower end of the portion. Have. The lens set 10 is a member that constitutes a vehicle body outer side portion of the housing 2, and includes an outer wall portion 11 that constitutes a rear wall and a vehicle width direction outer wall, and a front portion and a vehicle width direction inner side from a peripheral portion of the outer wall portion 11. It is a member made of transparent resin that integrally includes the peripheral wall portion 12 that is extended.

<Lamp unit>
The lamp unit 20 is a member having substantially the same shape as the lens set 10. The lamp unit 20 is a unit having a light source (such as an LED) that actually emits light based on the operation of buttons, switches, brake pedals, and the like by the driver. Light emitted from the light source is emitted to the rear and side of the vehicle via the lens set 10.

  As shown in FIG. 3, the lamp unit 20 includes a substrate 21, a first connector 22 provided on the front surface of the substrate 21, and a light source 23 (see FIG. 1) provided on the rear surface of the substrate 21. A control component (not shown) provided on the substrate 21 controls the light source 23 based on power and a control signal supplied via the first connector 22. Further, for example, the light source 23 is connected to a control component provided on the substrate 21 via a connector 24 provided on the front surface of the substrate 21 and a cable 25 that electrically connects the connector 24 and the light source 23. (See FIG. 7).

<Housing>
As shown in FIG. 1, the housing 30 is a member having a shape substantially similar to that of the lens set 10. The housing 30 constitutes the housing 2 in which the lamp unit 20 is accommodated together with the lens set 10. The housing 30 is a member that constitutes the vehicle body inner side of the housing 2, and extends rearward and outward in the vehicle width direction from the inner wall portion 31 that constitutes the front wall and the inner wall in the vehicle width direction, and the peripheral edge portion of the inner wall portion 31. It is a metal or resin member provided integrally with a circumferential fitting rib 32 that is provided and is fitted to the peripheral wall portion 12 of the lens set 10. An opening 31 a is formed in the front wall portion 31 of the housing 30.

  The opening 31 a is a hole formed at a position corresponding to the first connector 22, in the present embodiment, at a position where the first connector 22 can be seen from the outside of the housing 2 (frontward of the housing 30). The opening 31a and the first connector 22 are preferably overlapped with each other when viewed from a direction perpendicular to the surface on which the opening 31a is provided. As shown in FIG. 3, the opening 31a in the present embodiment includes a circular portion 31a1 and a plurality of concave portions 31a2 formed to extend radially outward from the circular portion 31a1. It is a hole. The plurality of recesses 31a2 allow passage of a plurality of opposing flanges 41c described later during assembly.

<Cover>
As shown in FIGS. 4 and 7, the cover 40 includes a housing mounting portion 41, an extending wall portion 42, a connecting wall portion 43, a second connector mounting portion 44, a plurality of ribs 45, and a reinforcing wall portion. 46, a plurality of convex portions 47, and a protruding piece 48 are integrally provided.

≪Housing mounting part≫
The housing attachment portion 41 is a portion attached to the opening 31 a of the housing 30. The housing mounting portion 41 is integrally provided with a flange 41a, a cylindrical wall portion 41b, and a plurality (three in this embodiment) of opposing flanges 41c.

  The flange 41a is an annular flange that extends radially outward from a base end portion of a cylindrical wall portion 41b described later.

  The cylindrical wall portion 41b is a wall portion having a cylindrical shape extending from the inner end portion in the circumferential direction of the flange 41a to the inside of the housing 30 (that is, rearward). The cylindrical wall portion 41 b is formed concentrically with the extended wall portion 42.

  The plurality of opposing flanges 41c are radially extended from the distal end portion of the cylindrical wall portion 41b, and are opposed to the flange 41a with a gap therebetween. The radial dimension of the opposing flange 41c is smaller than the radial dimension of the flange 41a. In the present embodiment, a plurality (three) of opposing flanges 41c are arranged at regular intervals (every 120 degrees) in the circumferential direction.

  As shown in FIG. 7, in the state where the cover 40 is assembled to the housing 30, the outer peripheral surface of the cylindrical wall portion 41b is in contact with the inner peripheral surface of the opening 31a. An O-ring 71 is interposed between the flange 41 a outside the housing 30 and the peripheral edge of the opening 31 a of the housing 30. Further, the front surface of the opposing flange 41 c in the housing 30 is in contact with the rear surface of the peripheral portion of the opening 31 a of the housing 30. That is, the flange 41 a and the opposing flange 41 c sandwich the peripheral edge of the opening 31 a of the housing 30 via the O-ring 71.

≪Extension wall part≫
The extending wall portion 42 is a wall portion having a cylindrical shape extending from the radially inner end of the flange 41a of the housing mounting portion 41 to the opposite side of the lamp unit 20 (outside of the housing 30, that is, the front). is there.

≪Connecting wall part≫
The connection wall portion 43 is a wall portion that connects the extension wall portion 42 and the second connector attachment portion 44, and is a portion that supports the second connector 50 attached to the second connector attachment portion 44. The connecting wall portion 43 is a wall portion having a disk shape extending radially inward from the distal end portion of the extending wall portion 42.

≪Second connector mounting part≫
The second connector attachment portion 44 is a part to which the second connector 50 is attached. The second connector mounting portion 44 in the present embodiment is a hole formed by a circular portion 44a and a plurality of concave portions 44b formed so as to extend radially outward from the circular portion 44a. . The plurality of recesses 44b allow passage of a plurality of protrusions 53 to be described later during assembly.

  The second connector attachment portion 44 has a smaller diameter than the opening 31a. Further, the second connector mounting portion 44 is located at a position corresponding to the first connector 22, in the present embodiment, at a position where the first connector 22 can be seen from outside the housing 2 and the cover 30 (frontward of the housing 30 and the cover 30). Preferably it is formed. Furthermore, it is more preferable that the opening 31a and the first connector 22 are wrapped with each other when viewed from a direction perpendicular to the surface on which the opening 31a is provided.

≪Rib≫
The rib 45 is erected outward from the housing 30 (ie, forward) from the flange 41a. The rib 45 extends in the radial direction, and the radially inner end portion of the rib 45 is connected to the extending wall portion 42. In other words, the rib 45 is installed on the flange 41 a and the extending wall portion 42. In the present embodiment, a plurality (eight) of ribs 45 are arranged at equal intervals (every 45 degrees) in the circumferential direction.

≪Reinforcement wall part≫
The reinforcing wall 46 is erected from the connecting wall 43 to the outside of the housing 30 (that is, forward). The reinforcing wall portion 46 is a wall portion having an annular shape or a C shape formed so as to surround the second connector mounting portion 44 in a front view.

≪Convex part≫
The convex portion 47 is erected from the peripheral edge of the second connector mounting portion 44 to the outside of the housing 30 (that is, forward). In the present embodiment, a plurality (two) of convex portions 47 are arranged at regular intervals (every 180 degrees) in the circumferential direction.

≪Projection piece≫
The protruding piece 48 extends radially outward (downward in the present embodiment) from a predetermined position of the connecting wall portion 43. The protruding piece 48 is for informing the operator of the vertical direction of the cover 40 having a shape close to rotational symmetry.

<Second connector and harness>
As shown in FIG. 5, the second connector 50 is a member for electrically connecting the inside and outside of the housing 30. The second connector 50 is a resin member in which a disc portion 51, a column portion 52, a plurality of projecting portions 53, and a rectangular tube portion 54 are integrally provided, and a part of the harness 60 is insert-molded. .

≪Disk part≫
The disc part 51 is a part having a larger diameter than the second connector attachment part 44. In the present embodiment, a harness protection portion 55 that covers a part of the harness 60 extends from the center of the disc portion 51 to the inside of the housing 30 (that is, the rear). In the disc part 51, a thin part 56 is formed on the outer side in the radial direction of the harness protection part 55.

≪Cylindrical part≫
The cylindrical portion 52 extends from the disc portion 51 to the outside of the housing 30 (that is, forward). The outer diameter of the cylindrical portion 52 is set to be approximately the same as the diameter of the second connector mounting portion 44.

≪Projecting part≫
The protruding portion 53 is erected radially outward from the outer peripheral surface of the cylindrical portion 52. In the present embodiment, a plurality (four) of protrusions 53 are arranged at regular intervals (every 90 degrees) in the circumferential direction. In addition, one protrusion 53 is formed larger than the other three protrusions 53, and is configured to notify the operator of the vertical direction of the second connector 50 and the like.

  As shown in FIG. 7, in a state where the second connector 50 is assembled to the cover 40, there is an O-ring between the disc portion 51 and the peripheral edge portion (that is, the connecting wall portion 43) of the second connector mounting portion 44. 72 is interposed. In addition, the rear surface of the protruding portion 53 is in contact with the front surface of the peripheral edge portion (that is, the connecting wall portion 43) of the second connector mounting portion 44. Moreover, as shown to Fig.6 (a) (b), the recessed part 53a is formed in the surface facing the disc part 51 of the up-and-down protrusion part 53. As shown in FIG. The concave portion 53 a engages with a convex portion 47 erected from the peripheral edge portion of the second connector mounting portion 44 of the cover 40. Further, the surface of the protruding portion 53 that faces the disc portion 51 is inclined so as to approach the disc portion 51 as it proceeds in the rotation direction during assembly. Thereby, in the assembly / removal operation of the cover 40 and the second connector 50, the relative forward / reverse rotation of the second connector 50 with respect to the cover 40 is facilitated.

<Rectangular cylinder>
As shown in FIGS. 4 and 7, the rectangular tube portion 54 extends from the column portion 52 to the outside of the housing 30 (that is, forward). The rectangular tube portion 54 is a female connection portion into which a male connection terminal is inserted from the outside of the housing 30. As a result, the control component provided on the substrate 21 is electrically connected to the power supply outside the housing 20, an ECU (Electrical Control Unit), and the like via the first connector 22, the harness 60 and the second connector 50. In FIG. 7, a male connection terminal that is electrically connected to the rectangular tube portion 54 of the second connector 50, a cord that electrically connects the connection terminal and an electrical component outside the housing 30, and the like, and The light source 23 (see FIG. 1) that is electrically connected to the cable 25 is omitted.

≪Harness≫
The harness 60 is a cord that electrically connects the lamp unit 20 and electrical components outside the housing 30. That is, in the present embodiment, a plurality of cords are gathered into a harness. The front portion of the harness 60 is exposed forward from the disc portion 51 and is electrically connected to the first connector 22. The rear part of the harness 60 is embedded in the second connector 50 and is configured to be electrically connectable with a male connection terminal inserted into the rectangular tube part 54.

<Assembly method of lamp structure>
Then, an example of the assembly method of the lamp structure 1 is demonstrated. First, the operator assembles the lamp unit 20 into the housing 30 and also houses the lamp unit 20 in the housing 2 constituted by the lens set 10 and the housing 30 by assembling the lens set 10 into the housing 30. . Subsequently, the worker connects the harness 60 extending from the second connector 50 to the first connector 22 exposed from the opening 31a. At this time, since the lamp unit 20 and the housing 30 are already assembled with each other, there is no need to wrap around the harness 60. Therefore, the length of the harness 60 can be set short. Subsequently, the operator assembles the cover 40 and the second connector 50 together, and assembles the cover 40 with the second connector 50 assembled to the housing 30.

  When assembling the cover 40 and the second connector 50 together, the operator passes the protruding portion 53 of the second connector 50 relative to the second connector mounting portion 44 of the cover 40 from the rear to the front. Subsequently, the operator causes the convex portion 47 and the concave portion 53 a to be fitted to each other by rotating the second connector 50 relative to the cover 40.

  In addition, when the cover 40 is assembled to the housing 30, the operator passes the facing flange 41 c of the cover 40 relative to the opening 31 a of the housing 30 from the front to the rear. Subsequently, the operator causes the flange 41 a and the opposed flange 41 c to sandwich the peripheral edge portion of the opening 31 a by rotating the cover 40 relative to the housing 30.

  In addition, the procedure of the assembly method of the lamp structure 1 is not limited to that described above. For example, the operator may assemble the cover 40 and the second connector 50 to each other, subsequently connect the harness 60 to the first connector 22, and then assemble the cover 40 to the housing 30.

  In the lamp structure 1 according to the embodiment of the present invention, the second connector 50 is provided on the cover 40 that closes the opening 31a corresponding to the first connector 22, and the first connector 22 and the second connector 50 are connected to the harness. 60 is connected. Therefore, since the lamp structure 1 can connect the first connector 22 and the harness 60 after the lamp unit 20 and the housing 30 are assembled first, the first connector and the cord are connected first. Then, the cord length can be suppressed as compared with the conventional case where the lamp unit and the housing are assembled together. Moreover, since the lamp structure 1 can expose the 2nd connector 50 out of the housing 30 using the opening part 31a for connecting the harness 60 to the 1st connector 22, the opening part 31a and the 2nd connector Compared with the case where 50 is separately provided, the number of parts can be reduced.

  In addition, the lamp structure 1 can use a general-purpose connector as the second connector 50 by making the cover 40 that tends to depend on the shape of the housing 30 and the highly versatile second connector 50 separate. And cost can be reduced.

  The lamp structure 1 includes a housing attachment portion 41 that is a connection portion of the cover 40 to the housing 30 and a second connector attachment portion 44 that is a connection portion of the cover 40 to the second connector 50. Separated in the direction perpendicular to the surface on which the mounting portion 44 is provided (the connecting wall portion 43) (that is, the direction perpendicular to the surface in which the opening 31a is provided, in other words, the arrangement direction of the first connector 22 and the opening 31a). Since it becomes the structure which carries out, it can prevent that each attachment structure interferes. Further, since the lamp structure 1 can separate the housing 30 and the second connector 50, it is possible to prevent the second connector 50 from interfering with components in the housing 30 (such as the lamp unit 20). Can be miniaturized.

  Further, in the lamp structure 1, the rib 45 improves the rigidity of the flange 41 a, so that the attachment rigidity of the cover 40 to the housing 30 can be improved. Moreover, since the rib 45 improves the sandwiching performance of the O-ring 71 by the flange 41a and the opposed flange 41c, the lamp structure 1 can improve the sealing performance between the housing 30 and the cover 40. Further, the lamp structure 1 can improve the workability of attaching and detaching the cover 40 to the housing 30 because the operator can put a finger on the rib 45 when the cover 40 is attached or detached.

  Further, the lamp structure 1 is erected so that the reinforcing wall portion 46 surrounds the second connector attachment portion 44 from the connection wall portion 43, so that the connection wall lowered by the second connector attachment portion 44 that is a hole portion. The rigidity of the portion 43 can be improved. Further, since the lamp structure 1 is erected so that the reinforcing wall portion 46 surrounds the second connector mounting portion 44 from the connecting wall portion 43, the cover 40 to which the second connector 50 is assembled is assembled to the housing 30. At this time, it is possible to reduce the load applied to the extending wall portion 42 from acting on the second connector mounting portion 44.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, In the range which does not deviate from the summary of this invention, it can change suitably. For example, the lamp structure of the present invention is not limited to a vehicle tail lamp, but may be applied to a vehicle headlight or a light other than a vehicle.

DESCRIPTION OF SYMBOLS 1 Lamp structure 20 Lamp unit 22 1st connector 30 Housing 31a Opening part 40 Cover 41 Housing attachment part 41a Flange 42 Extension wall part 43 Connection wall part 44 Second connector attachment part 45 Rib 46 Reinforcement wall part 50 Second connector 60 Harness (cord)

Claims (5)

A lamp unit provided with a first connector;
A housing having an opening formed at a position corresponding to the first connector;
A second connector is provided, and a cover for closing the opening;
A cord connecting the first connector and the second connector;
A lamp structure characterized by comprising: The lamp structure according to claim 1, wherein the second connector is formed separately from the cover. The cover is
A housing attachment portion attached to the housing;
A second connector attachment portion attached to the second connector;
An extending wall portion extending from the housing mounting portion to the opposite side of the lamp unit;
A connecting wall portion connecting the tip of the extending wall portion and the second connector mounting portion;
The lamp structure according to claim 2, further comprising: The housing mounting portion has a flange extending in a direction intersecting with the extending wall portion,
The lamp structure according to claim 3, further comprising a rib provided on the flange and the extending wall portion. The second connector mounting portion is a hole formed in the connecting wall portion and through which the second connector is inserted,
5. The lamp structure according to claim 3, further comprising a reinforcing wall portion erected from the connection wall portion so as to surround the hole portion.

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