JP2009280078A - On-vehicle interior lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-vehicle lighting system in which wiring work of a wire harness can easily be performed, and capable of sufficiently retaining a strain relief effect. <P>SOLUTION: The on-vehicle interior lighting system 1 is provided with a housing 2 in which a pressure contact terminal 10c is erected on an electric wire wiring part 5 and an electric wire w of the wire harness WH is connected in a pressure contact manner to the pressure contact terminal 10c, and an electric wire protection cover 15 attached to the housing 2 and covering the electric wire w of the wire harness WH wired on the electric wire wiring part 5. Electric wire bending surfaces 16, 12 leading the electric wire w outside in the state of being bent at less than a right angle are provided to both electric wire outlet sides of the electric wire protection cover 15 and the housing 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle interior lighting device that is provided on a ceiling or the like of a vehicle cabin and illuminates the vehicle interior.

  There exists what was disclosed by patent document 1 as this kind of conventional vehicle-mounted indoor illuminating device. As shown in FIG. 7, the vehicle interior lighting device 100 includes a housing 110 and a wire protection cover 111 attached to the housing 110. The housing 110 is provided with a lamp mounting portion 111, a switch mounting portion 112, and an electric wire routing portion 115. A lamp 113 is mounted on the lamp mounting portion 111. A switch unit 114 is mounted on the switch mounting unit 112.

  A plurality of press contact terminals 116 are erected on the wire routing section 115. A wire harness WH is routed in the wire routing portion 115, and each wire w of the wire harness WH is press-connected to a desired press-contact terminal 116. In addition, a pair of locking recesses 110a are provided on the left and right side walls of the housing 110 located at both ends of the wire routing portion 115 and at positions facing each other.

  The electric wire protection cover 111 has a pair of electric wire bending projections 111a that protrude downward from the center inner surface. Locking claws 111b are provided on the side surfaces on both sides of each wire bending projection 111a. The wire protection cover 111 covers the wire harness WH routed to the wire routing portion 115, and each locking claw 111 b is locked to the locking recess 110 a of the housing 110. Each electric wire w of the wire harness WH is bent at a right angle by each electric wire bending protrusion 111 a of the electric wire protection cover 111. As a result, the wire harness WH has a strain relief structure. When a pulling force is applied to the wire harness WH, the pulling force is not directly applied to the press contact portion by the strain relief structure.

Next, an operation for arranging the wire harness WH in the in-vehicle indoor lighting device 100 will be described. The wire harness WH is set at a predetermined position of the electric wire routing part 115 of the housing 110. The set wire harness WH is pressed to the press contact terminal 116 side, and each electric wire w of the wire harness WH is press connected to the desired press contact terminal 116. If the wire protection cover 111 is attached to the housing 110 so as to cover the wire harness WH that is press-connected, the wire routing operation is completed.
JP 2005-263078 A

  However, in the conventional vehicle interior lighting device 100, the wiring work of the wire harness WH cannot be easily performed. That is, after the wire harness WH is pressed against the press contact terminal 116, the wire harness WH is bent in advance, and the wire protection cover 111 is attached to the housing 110 while maintaining this bent state, or when the wire harness WH is not bent in advance. In the process of attaching the wire protection cover 111 to the housing 110, it is necessary to attach the wire protection cover 111 to the housing 110 while bending the wire harness WH with the pair of wire bending projections 111a. The work is not easy. Therefore, the wiring work of the wire harness WH is not easy.

  Here, if the electric wire w is not bent by the electric wire protection cover 111, the mounting operation is easy, but the electric wire protection cover 111 cannot provide a strain relief structure.

  Accordingly, the present invention has been made to solve the above-described problems, and provides an in-vehicle indoor lighting device that can easily maintain the strain relief effect while the wiring harness routing work is easy. Objective.

  According to the first aspect of the present invention, there is provided a housing in which a press contact terminal is erected on the wire routing portion, the wire harness wire is press connected to the press contact terminal, and a wire harness mounted on the housing and routed to the wire routing portion. An in-vehicle interior lighting device comprising a wire protection cover for covering the wires of the wire, wherein the wires are bent at an angle of less than a right angle at least on the wire outlet side of the wire protection cover and the housing. It is characterized in that an electric wire bending surface led out to is provided.

  The invention according to claim 2 is the in-vehicle indoor lighting device according to claim 1, wherein the movement of the electric wire of the wire harness is restricted to the electric wire outlet side of at least one of the electric wire routing portion and the electric wire protection cover. A rib is provided.

  The invention of claim 3 is the in-vehicle interior lighting device according to claim 1 or claim 2, wherein the electric wire protection cover is provided with a rigid body locking portion, and the housing is provided with an elastic locked portion, The elastic locking part is bent and deformed during the mounting process of the wire protection cover, so that the rigid locking part is locked to the elastic locking part, and the rigid locking part is disposed in the vicinity of the electric wire bending surface. Features.

  According to the first aspect of the present invention, when the electric wire protection cover is attached to the housing, the electric wire of the wire harness is bent by the electric wire bending surface of the electric wire protection cover, but the electric wire has a small bending angle, so that the electric wire protection cover Since the reaction force of the electric wire is small, the electric wire protection cover can be reliably and easily attached. Also, since the electric wire can be bent at a small angle on the outlet side of the electric wire routing part, the pulling force of the electric wire acting on the outside of the electric wire routing part is received at the bent part, and the electric wire pulling force is connected to the press contact terminal. It can prevent as much as possible to act on the location. From the above, the wire harness routing work is easy and the strain relief effect can be sufficiently retained.

  According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, the movement of the electric wire at the place covered by the electric wire protection cover is restricted by the rib, so that the holding force of the electric wire is improved.

  According to the invention of claim 3, in addition to the effect of claim 1 or claim 2, when an external force due to the pulling force of the electric wire acts on the electric wire bending surface of the electric wire protection cover, the external force is positioned in the immediate vicinity of the electric wire bending surface. Therefore, the strain relief effect can be improved by preventing the bending surface of the wire protection cover from being bent by an external force as much as possible.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  1 to 6 show an embodiment of the present invention, FIG. 1 is a perspective view of a functional part of an in-vehicle indoor lighting device, FIG. 2 is an exploded perspective view of the functional part of the in-vehicle indoor lighting device, and FIG. 4 is a perspective view of the housing of the functional part, FIG. 5 is an enlarged view of the B part of FIG. 4, FIG. 6A is a perspective view of the wire protection cover, and FIG. FIG. 6C is a front view of the wire protection cover, and FIG. 6C is a cross-sectional view of the wire protection cover.

  The in-vehicle interior lighting device includes a design portion (not shown) disposed on the indoor side of the ceiling board of the passenger compartment, and a functional portion 1 fixed to the outdoor side of the design portion.

  The functional unit 1 includes a housing 2 as shown in FIGS. 1 and 2. The housing 2 is provided with a lamp mounting portion 3, a switch mounting portion 4, and a wire routing portion 5. The lamp mounting portion 3 is provided with a lamp mounting terminal 10a, and the lamp 6 is mounted on the lamp mounting terminal 10a. Irradiation light from the lamp 6 is irradiated into the vehicle interior from a lens cover (not shown) of the design portion. The switch mounting portion 4 is provided with a switch terminal 10b, and the switch portion 7 electrically connected to the switch terminal 10b is mounted. The switch unit 7 is configured to be operable by a switch operation unit (not shown) of the design unit. A lamp mounting terminal 10a, a switch terminal 10b, a pressure contact terminal 10c described below, and a wiring portion for connecting these terminals with a desired wiring path are formed by a bus bar 10 which is insert-molded in the housing 2.

  As shown in detail in FIG. 3 to FIG. 5, a plurality of press contact terminals 10 c are erected on the wire routing section 5 together with a plurality of partitioning protrusions 11 that partition each wire w of the wire harness WH. As will be described below, a wire bending surface 12 (shown in FIG. 3) is provided on the wire outlet side on both sides of the wire routing portion 5. On the electric wire bending surface 12, ribs 13 that abut against the bridge of the flat electric wire of the wire harness WH and restrict the movement of the wire harness WH are provided at appropriate positions.

  In addition, a pair of elastic locked portions 14 are provided on the left and right side walls of the housing 2 located at both ends of the wire routing portion 5 and at positions facing each other.

  As shown in FIGS. 6A to 6C, the wire protection cover 15 presses each wire w of the wire harness WH routed in the wire routing portion 5 from above. A protrusion 15 a for restricting the position of the press contact terminal 10 c is formed on the inner inner surface of the wire protection cover 15. A wire bending surface 16 for leading the wire w to the outside in a state where the wire w is bent at an angle of less than a right angle is provided on the wire outlet side on both sides of the wire protection cover 15 and the wire routing portion 5 of the housing 2 facing the wire protection cover 15. It has been. Each electric wire w of the wire harness WH is bent by the electric wire bending surfaces 16 and 12 of both the electric wire protection cover 15 and the housing 2. As a result, the wire harness WH has a strain relief structure. When a pulling force is applied to the wire harness WH, the pulling force is not directly applied to the press contact portion with the press contact terminal 10c by the strain relief structure.

  Further, on the outer side surfaces on both sides of the electric wire protection cover 15 and in the vicinity of the electric wire bending surface 16, a rigid body locking portion 17 that does not bend and deform is provided. The rigid body locking portion 17 is locked to the elastic locked portion using the elastic deformation of the elastic locked portion 14. As a result, the wire protection cover 15 is attached to the housing 2.

  Each electric wire w of the wire harness WH is bent by the electric wire bending surfaces 16 and 12 of both the electric wire protection cover 15 and the housing 2. As a result, the wire harness WH has a strain relief structure. When a pulling force is applied to the wire harness WH, the pulling force is not directly applied to the press contact portion by the strain relief structure.

  Next, an operation for arranging the wire harness WH in the functional unit 1 of the in-vehicle indoor lighting device will be described. First, since the wire harness WH of this embodiment is a flat electric wire, an opening is formed in the bridge of the flat electric wire in order to pass the partition protrusion 11. Next, the wire harness WH is set at a predetermined position of the electric wire routing portion 5 of the housing 2. Next, the set wire harness WH is pressed to the press contact terminal 10c side, and each electric wire w of the wire harness WH is press connected to the desired press contact terminal 10c. Finally, if the wire protection cover 15 is attached to the housing 2 so as to cover the wire harness WH that is press-connected, the routing work of the wire harness WH is completed.

  Here, on both the wire outlet sides of the wire protection cover 15 and the wire routing portion 5, there are provided the wire bending surfaces 16 and 12 for leading the wire w to the outside in a state where the wire w is bent at an angle of less than a right angle. When the electric wire protection cover 15 is attached to the housing 2, the electric wire w of the wire harness WH is bent by the electric wire bending surface 16 of the electric wire protection cover 15. The reaction force of the electric wire w is small. Therefore, the electric wire protection cover 15 can be reliably and easily attached. Moreover, since the electric wire w can be bent at a small angle on the outlet side of the electric wire routing portion 5, the pulling force of the electric wire w acting on the outside of the electric wire routing portion 5 is received at the bent portion, and the pulling force of the electric wire w is reduced. It is possible to prevent as much as possible from acting on the connecting portion with the press contact terminal 10c. From the above, the routing work of the wire harness WH is easy and the strain relief effect can be sufficiently retained.

  In this embodiment, the electric wire bending surfaces 16 and 12 are provided on both the electric wire protection cover 15 and the housing 2, but may be provided only on the electric wire protection cover 15.

  In this embodiment, a rib 13 that restricts the movement of the wire w of the wire harness WH is provided on the wire outlet side of the wire routing unit 5. Therefore, since the movement of the electric wire w at the place covered with the electric wire protection cover 15 is restricted by the rib 13, the holding power of the electric wire w is improved. In this embodiment, the rib 13 is provided only on the wire routing portion 5 of the housing 2, but even if it is provided on both the wire routing portion 5 and the wire protection cover 15, only the wire protection cover 15 is provided. It may be provided.

  In this embodiment, the wire protective cover 15 is provided with a rigid locking portion 17, the housing 2 is provided with an elastic locked portion 14, and the elastic locked portion 14 is bent in the process of mounting the wire protective cover 15. By being deformed, the rigid body locking portion 17 is locked to the elastic locked portion 14, and the rigid body locking portion 17 is disposed in the vicinity of the electric wire bending surface 16. Accordingly, when an external force due to the pulling force of the electric wire w acts on the electric wire bending surface 16 of the electric wire protection cover 15, the external force is received by the rigid body locking portion 17 located in the immediate vicinity of the electric wire bending surface 16. The electric wire bending surface 16 can be prevented from being bent by an external force as much as possible, and the strain relief effect is improved.

  In this embodiment, the case where the in-vehicle interior lighting device is attached to the ceiling of the passenger compartment has been described. However, the attachment location is not limited to the ceiling of the passenger compartment.

1 is a perspective view of a functional unit of an in-vehicle indoor lighting device according to an embodiment of the present invention. 1 is an exploded perspective view of a functional part of an in-vehicle indoor lighting device according to an embodiment of the present invention. 1 shows an embodiment of the present invention and is a cross-sectional view taken along line AA in FIG. 1 is a perspective view of a housing of a functional unit according to an embodiment of the present invention. FIG. 5 shows an embodiment of the present invention and is an enlarged view of part B of FIG. 4. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an electric wire protection cover, (b) is a front view of the electric wire protection cover, and (c) is a cross-sectional view of the electric wire protection cover. It is a disassembled perspective view of the function part of the vehicle-mounted room illuminating device which concerns on a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car interior lighting device 2 Function part 5 Wire routing part 10c Pressure contact terminal 12 Electric wire bending surface 13 Rib 14 Elastic locking part 15 Electric wire protection cover 16 Electric wire bending surface 17 Rigid body locking part WH Wire harness w Electric wire

Claims (3)

A pressure contact terminal is erected on the wire routing portion, and a housing in which a wire harness wire is pressure connected to the pressure contact terminal, and the wire of the wire harness mounted on the housing and routed to the wire routing portion An in-vehicle indoor lighting device comprising an electric wire protection cover for covering,
An in-vehicle use characterized in that an electric wire bending surface for guiding the electric wire to the outside in a state where the electric wire is bent at an angle of less than a right angle is provided on at least the electric wire outlet side of the electric wire protective cover and the housing. Interior lighting device. The vehicle interior lighting device according to claim 1,
An in-vehicle indoor lighting device, wherein a rib for restricting movement of the wire of the wire harness is provided on the wire outlet side of at least one of the wire routing portion and the wire protection cover. The in-vehicle indoor lighting device according to claim 1 or 2,
The electric wire protection cover is provided with a rigid body locking portion, the housing is provided with an elastic locking portion, and the elastic locking portion is bent and deformed during the mounting process of the electric wire protection cover. An in-vehicle indoor lighting device, wherein a stop portion is locked to the elastic locked portion, and the rigid body locking portion is disposed in the vicinity of the bent surface of the electric wire.

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