JP2012174652A - Vehicular indoor illumination lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular indoor illumination lamp that uses one end of a circuit substrate as a part of a switch component, in which components are easily assembled and installed, and that includes a small number of components, and has excellent cost performance.SOLUTION: In a vehicular indoor illumination lamp, a lens 21 and a switching knob 40 are assembled and installed in a housing 20, and a circuit substrate 31 on which light source 32 are assembled and installed in a lighting fixture body 30. A terminal 42 are fixed on the switching knob 40, and a connection part 43 is provided on the side part of the circuit substrate 31. In the vehicular indoor illumination lamp, the housing 20 and the lighting fixture body 30 are assembled and installed, the terminal 42 is electrically connected to the connection part 43, and the switching of a switch SW is performed by the slide of the switching knob 40.

Description

  The present invention relates to a vehicular interior illumination lamp that is attached to a partition plate (such as a ceiling plate or an interior plate of a door) that partitions a passenger compartment.

<Vehicle interior illumination lamp described in Patent Document 1>
A switch structure for controlling ON / OFF of an interior lighting for a vehicle is known, and according to this, a pressing portion of a switch knob that is rotatably attached to a switch panel is pushed, and a tact switch mounted on a wiring board is pressed. By pressing the switch, the switch is turned ON / OFF (see Patent Document 1).

JP 2008-4273 A

<Problem of invention described in Patent Document 1>
The switch described in the vehicle interior illumination lamp described in Patent Document 1 has a drawback in that the combination with other component configurations such as a circuit board is not good and the number of components cannot be reduced.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to make one end of a circuit board on which a light source is mounted a part of a switch part, and it is easy to assemble each part and has a small number of parts. An object of the present invention is to provide a vehicular interior illumination lamp excellent in the above.

In order to achieve the above-described object, a vehicle interior illumination lamp according to the present invention is characterized by the following (1) to (4).
(1) A vehicle interior illumination lamp comprising a housing and a lamp body,
A lens engaged and fixed to the housing;
A circuit board engaged and fixed to the lamp body;
A connection provided on one side of the circuit board;
A switch knob and a terminal fixed to the switch knob;
The switch knob is movably attached to the housing. When the switch knob is moved, the terminal and the connection portion are electrically connected, and the light source is turned on and off.
(2) In the vehicle interior illumination lamp having the configuration of (1), the terminal includes a plurality of contacts, the connection portion includes a plurality of contacts, and the contacts and the contacts are connected to a switch knob. Selective contact by movement.
(3) In the vehicle interior illumination lamp configured as described in (2) above, the connection portion is formed integrally with the circuit board, and the contacts provided on the connection portion are each curved inward of the circuit board. It has a shape, and the contact is elastically biased to a substantially central portion of the contact.
(4) In the vehicle interior illumination lamp having the configuration of any one of (1) to (3), the circuit board includes one part obtained by cutting a center of a hole formed in one board. The hole formed in a circular shape is used as the connection portion.

According to the configuration (1), the workability can be improved by a simple configuration in which the lens and the switch knob are assembled to the housing and the circuit board is assembled to the lamp body. In addition, since electrical connection and switching can be performed by a terminal fixed to the switch knob and a connection portion provided on one side of the circuit board, a simple and reliable switch can be provided.
According to the configuration of (2) above, it can be applied to various uses of the light source by selectively bringing a plurality of contacts and a plurality of contacts into contact with each other.
According to the configuration of (3) above, the contact is elastically biased with respect to the contact curved inward, so that the electrical connection is further improved.
According to the configuration (4), the circuit board can be manufactured by a simple and lossless method.

  According to the present invention, the electrical connection parts of the switch can be provided on the side of the circuit board, and it is not necessary to use a commercially available switch, and a unique switch configuration of the vehicle interior illumination lamp can be secured. Further, by arranging the switch on the side of the vehicle interior illumination lamp, the light source mounted on the circuit board and the lens can be brought close to each other, and optimal interior illumination can be provided. Furthermore, the number of parts is small, assembly is easy, workability is good, and cost performance is excellent.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through the best mode for carrying out the invention described below with reference to the accompanying drawings.

1 shows an embodiment of a vehicular interior lighting according to the present invention, (A) is an exploded perspective view, and (B) is a sectional perspective view after assembly is completed. 1A is an exploded perspective view, FIG. 1B is a front perspective view, and FIG. 1B is a rear perspective view. FIGS. 1A and 1B show a switch of the vehicle interior illumination lamp shown in FIG. 1. FIG. 1A is an exploded perspective view, FIG. 1B is a cross-sectional view, and FIG. 1 shows a switch of the vehicle interior illumination lamp shown in FIG. 1, (A) shows that the switch is in an ON state, (1) is a cross-sectional view, (2) is a cross-sectional view taken along line AA of (1), 3) is a perspective view, (B) shows that the switch is in an OFF state, (1) is a cross-sectional view, (2) is a cross-sectional view along BB of (1), and (3) is a perspective view. 1 shows a circuit board of the vehicle interior illumination lamp shown in FIG. 1, (A) is a front view showing a manufacturing method of the circuit board, (B) shows a procedure of another manufacturing method of the circuit board, (1) is cut The front view before, (2) is the front view after cutting, (3) is the front view after completion, (C) is an enlarged view of a connection part.

  Hereinafter, a preferred embodiment of a vehicle interior illumination lamp according to the present invention will be described in detail with reference to the drawings.

<Specific Configuration of the Present Invention>
A vehicle interior illumination lamp 10 according to the present invention will be described with reference to FIG.
The vehicle interior illumination lamp 10 is attached to a partition plate (a ceiling plate, an interior plate of a door, etc .: not shown) that partitions a vehicle compartment, and is engaged and fixed to the substantially rectangular housing 20. And a substantially rectangular lamp body 30. A lens 21 and a switch knob 40 are assembled to the housing 20, and a circuit board 31 is assembled to the lamp body 30.
The lens 21 is engaged and fixed in the opening 22 opened in the center of the housing 20, and the switch knob 40 is assembled in the insertion port 41 opened in the side of the housing 20. A terminal 42 is fixed to the bottom of the switch knob 40. The switch knob 40 is attached to a support portion 41S provided on the side portion of the insertion port 41 and an engagement portion 40S provided on the side portion of the switch knob 40 so as to be movable (hereinafter referred to as swingable). That is, the switch knob 40 slides with the support portion 41S as a fulcrum.
A circuit board 31 on which a plurality of light sources 32 (LED, EL, etc.) are mounted is engaged and fixed at the center of the lamp body 30. A connection portion 43 is integrally or integrally provided on one side of the circuit board 31, and a terminal 50 that is electrically connected to an external power source is mounted on the other side.

  The switch SW in one embodiment of the present invention includes a switch knob 40, a support portion 41S, a terminal 42 that is an electrical connection component, and a connection portion 43. That is, almost the entire side portion (left side in the drawing) of the vehicle interior illumination lamp 10 constitutes the switch knob 40. Further, the other part (right side in the drawing) of the vehicle interior illumination lamp 10 constitutes an illumination part IL mainly composed of the light source 32 and the lens 21.

  The switch SW in one embodiment of the present invention is a kind of switch called a seesaw switch or a rocker switch, and controls the light of the light source 32 by pushing one end or the other end of the surface of the switch knob 40. For example, ON / OFF of the light source 32, light / dark, switching of the light emission color, etc. can be performed. In the description of an embodiment of the present invention, the description will focus on ON / OFF of the light source 32 for easy understanding.

  FIG. 1B is a cross-sectional perspective view showing the housing 20 and the lamp body 30 assembled and after the assembly is completed. The engaging portion 40S of the switch knob 40 is engaged with the support portion 41S and slides in the left-right direction with the support portion 41S as a fulcrum. Further, the lens 21 has a central portion that is recessed toward the circuit board 31 and is disposed in the vicinity of the light source 32. Since the connection portion 43 provided on the circuit board 31 and the terminal 42 may be electrically connected, the optimal positional relationship between the lens 21 and the light source 32 is selected by adjusting the length of the terminal 42. Thus, the light source 32 can be disposed in an optically superior position with respect to the lens 21.

Furthermore, recently, based on energy saving, incandescent light bulbs, which are general light sources, can no longer be used, and LEDs and the like need to be used as light sources. This is particularly noticeable for vehicles, and the vehicle interior illumination lamp 10 of the present invention also uses an LED as the light source 32. The LED is a flat light source, and in an optical design using the LED, it is necessary to bring the lens (for example, convex lens) surface close to the light source. From this point of view, the proximity of the lens 21 and the light source 32 in one embodiment of the present invention makes it appropriate to illuminate the room from the vehicle interior illumination lamp 10.
In addition, by utilizing one end of the circuit board 31 as a part of the components of the switch SW, the number of parts and the ease of assembly can be improved, and the vehicle interior illumination lamp 10 having excellent cost performance can be obtained. providing.

  FIG. 2 is a perspective view for easily explaining the assembled state of the housing 20 and the lamp body 30. After the lens 21 and the switch knob 40 are assembled to the housing 20 and the circuit board 31 is assembled to the lamp body 30, the housing 20 and the lamp body 30 are engaged and fixed to form the vehicle interior illumination lamp 10 of the present invention. . And the side part of the vehicle interior illumination light 10 becomes a switch SW, and the other part becomes an illumination part IL (see FIG. 2B).

<Switch details>
Based on FIG. 3, the switch SW of the present invention will be described in detail.
The terminal 42 is bifurcated toward the tip, and includes two contacts, a first contact 42S and a second contact 42T. A connection portion 43 is integrally or integrally provided on the side of the circuit board 31 where the terminals 42 are disposed. In one embodiment of the present invention, the connection portion 43 includes three concave contacts that are curved toward the inside of the circuit board 31, a first contact 43 </ b> S, a second contact 43 </ b> T, and a third contact 43 </ b> V. .
By using the side surface of the substrate and changing the shape of the side surface, the click feeling of the contact can be easily designed and changed.

  When the housing 20 and the lamp body 30 are assembled, the contacts 42S, 42T and the contacts 43S, 43T, 43V come into contact with each other, and the configuration of the switch SW of the present invention is completed (see FIGS. 3B and 1). At that time, the contacts 42S and 42T that are elastically biased toward the centers of the concave contacts 43S, 43T, and 43V selectively abut on the contacts 43S, 43T, and 43V, and the terminals 42 and the connection portion 43 are connected. Electrical connection is possible.

  The switch knob 40 swings left and right about the support portion 41S of the housing 20 (see curved arrows, solid lines, and broken lines). In accordance with the movement, selective electrical connection between the contacts 42S and 42T, which are electrical connection components, and the contacts 43S, 43T, and 43V is performed.

The ON / OFF of the switch SW will be described with reference to FIG.
FIG. 4A shows that the switch SW is in an ON state, that is, the light source 32 is in a lighting state. The switch knob 40 is inclined to the left (in the drawing). The first contact 42S provided in the terminal 42 is electrically connected to the first contact 43S, and the second contact 42T is electrically connected to the second contact 43T.

  FIG. 4B shows that the switch SW is in an OFF state, that is, the light source 32 is in a non-lighting state. The switch knob 40 is inclined to the right (in the drawing). The first contact 42S provided in the terminal 42 is electrically connected to the second contact 43T, and the second contact 42T is electrically connected to the third contact 43V.

  In one embodiment of the present invention, FIG. 4A has been described as ON and FIG. 4B has been described as OFF. However, the reverse may be possible, and the present invention is not limited to the ON / OFF operation.

<Circuit board manufacturing method>
Two examples of the method of manufacturing the circuit board 31 will be described in detail with reference to FIG.
FIG. 5A is an example. As an example of manufacturing the circuit board 31, there is a method of cutting the end portion A of the board D that is the base of the circuit board 31. At that time, the concave connection portion 43 is also formed at the same time.

  FIG. 5B is another example. A plurality of holes 60 are formed in the substrate D that is the basis of the circuit board 31. Next, the center of the hole 60 (see the dashed line in FIGS. 5B and 1) is cut in the horizontal direction (the horizontal direction in the drawing). One part that is cut becomes the circuit board 31. The inside of the cut semicircular hole 60 is curved to adjust the shape, and metal plating, soldering, or the like is performed to complete the connection portion 43. According to the second method, the loss of the end A shown in FIG. 5A is prevented, and the cost is reduced.

  Further, as shown in FIG. 5C, if the contact points 43S, 43T, and 43V of the connection portion 43 are formed into an inclined surface 43A and an arcuate surface 43B, the contacts 42S and 42T of the terminal 42 become the contact points 43S and 43T. 43V, and the contacts 42S, 42T are securely abutted against the contacts 43S, 43T, 43V by the arcuate surface 43B, and the contacts 42S, 42T and the contacts 43S, 43T, 43V Excellent electrical connection is possible.

<Summary of the present invention>
In the vehicle interior illumination lamp 10 described above, the lens 21 is engaged and fixed to the housing 20, the circuit board 31 is engaged and fixed to the lamp body 30, and the connection portion 43 is provided on one side of the circuit board 31, A switch knob 50 to which the terminal 42 is fixed is movably attached to the housing 20. Therefore, the workability can be improved with an extremely simple configuration with a small number of parts for assembly. Further, since the switch SW can be easily switched by the selective electrical connection between the terminal 42 and the connecting portion 43, there is no need to use a commercially available switch. Furthermore, by providing the switch knob 40, the terminal 42, and the connection portion 43 on the side portion of the vehicle interior illumination lamp 10, the light source 32 and the lens 21 mounted on the circuit board 31 have an optically appropriate arrangement. Excellent room lighting can be provided.

  Further, the terminal 42 is provided with a plurality of contacts, a first contact 42S, and a second contact 42T, and the connection portion 43 is provided with a plurality of contacts, a first contact 43S, a second contact 43T, and a third contact 43V. The contacts 42S, 42T and the contacts 43S, 43T, 43V are selectively brought into contact with each other by the movement of the switch knob 40, so that various uses of the light source 32, for example, ON / OFF, light / dark, light emission color switching, etc. Applicable to.

  Further, the connecting portion 33 is formed integrally with the circuit board 31, the shapes of the respective contacts 43S, 43T, 43V provided on the connecting portion 33 are curved inward of the circuit board 31, and the contacts 42S, 42T are contacted 43S, 43T. , 43V can be elastically biased to the substantially central portion, and the electrical connection between the contacts 42S, 42T and the contacts 43S, 43T, 43V can be improved.

Moreover, the movement of the switch knob 40 can be swung freely, and can be applied to a seesaw switch or the like.
And if the center of the hole 60 formed in one board | substrate D is cut and the one part is used as the circuit board 31, the circuit board 31 without a loss can be manufactured.

  Although the seesaw switch in which the switch knob 40 slides has been described as the switch SW of one embodiment of the present invention, it can be applied to various switches such as a slide switch.

  Although the two contacts 42S, 42T and the three contacts 43S, 43T, 43V have been described above, the number and arrangement of these electrical connecting members are not limited as long as the same effects and objects as in the present invention can be achieved.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

DESCRIPTION OF SYMBOLS 10: Vehicle interior illumination light 20: Housing 21: Lens 30: Lamp body 31: Circuit board 32: Light source 40: Switch knob 40S: Engagement part 41: Insertion port 41S: Support part 42: Terminal 42S: 1st contact 42T : Second contact 43: connection 43S: first contact 43T: second contact 43V: third contact 60: Hall D: substrate SW: switch IL: illumination unit

Claims (4)

A vehicle interior lighting comprising a housing and a lamp body,
A lens engaged and fixed to the housing;
A circuit board engaged and fixed to the lamp body;
A connection provided on one side of the circuit board;
A switch knob and a terminal fixed to the switch knob;
The switch knob is movably attached to the housing, and the switch knob is moved to electrically connect the terminal and the connecting portion to turn the light source ON / OFF, etc. light.   2. The terminal according to claim 1, wherein the terminal is provided with a plurality of contacts, and the connection portion is provided with a plurality of contacts, and the contacts and the contacts are selectively brought into contact with each other by movement of a switch knob. Vehicle interior lighting.   The connection portion is integrally formed with the circuit board, and the contacts provided on the connection portion each have a shape curved inward of the circuit board, and the contact is elastically attached to a substantially central portion of the contact point. The vehicle interior illumination lamp according to claim 2, wherein   The circuit board is composed of one part obtained by cutting a center of a hole formed in one substrate, and the hole formed in a semicircular shape is used as the connection portion. The interior lighting for vehicles according to any one of the above.

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