JP6080469B2 - Lighting module - Google Patents

Description

  The present invention relates to an illumination module that controls lighting of a light source for illumination by a controller.

  Illumination for illuminating the inside of the vehicle is provided in the upper part of the vehicle. Particularly in recent years, since LED (light emitting diode) chips have been used as light sources from conventional bulbs, miniaturization and detailed control have been promoted.

  A controller is indispensable for controlling the illumination light source.Connect a connector with a built-in control unit that has some of its functions from the main control unit with multiple communication lines, and connect the control unit built-in connector and each load with wires. Some are connected to drive each load (for example, Patent Document 1).

  According to such a configuration, since the built-in control unit of the connector controls the light source, it is possible to reduce the burden on the main control unit that eliminates the need to directly control the light source. Also, instead of directly connecting the wires from each light source individually (in parallel) to the main control unit, if the wires from each light source are connected to the control unit built-in connector connected to the main control unit with multiple communication lines Therefore, it is possible to reduce the amount of wires and reduce the overall weight.

JP 2012-133985 A

  However, in the above-described configuration, there are still electric wires that connect the connector and each light source individually (in parallel). In particular, in the interior lighting of a vehicle, the space for routing the wiring originally has no room, so it is a fact that it is desirable to reduce the individual wiring to each light source as much as possible.

  In addition, it may be possible to connect wires from the control unit built-in connector to multiple light sources mounted on one board, but in that case, an extra connector is required to connect each wire to the circuit pattern on the board. This may complicate the configuration.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lighting module capable of reducing the amount of wiring as much as possible and realizing a simple structure in configuring a module that controls lighting of a lighting light source by a controller. Is to provide.

In order to achieve the object, the lighting module of the present invention according to claim 1 comprises:
Based on the control signal inputted to the controller, a lighting module for lighting control of the plurality of light sources of seat light irradiation of the vehicle,
An LED chip as the light source for cover with a plurality implemented share the sliding range of the seat base plate at intervals,
A controller built-in connector mounted on the substrate and electrically connected to the LED chips on the substrate;
Based on a control signal input to the built-in controller via a multiplex communication line connected to a connector portion of the controller built-in connector, the controller indicates each LED chip , and the seat indicated by data from a seat position sensor controlling lit by turning on and off pattern corresponding to the slide position in the longitudinal direction of,
It is characterized by that.

  According to the illumination module of the present invention described in claim 1, a connector with a built-in controller that controls lighting of the LED chips, which are light sources for illumination, is mounted on the substrate. Since the connector with a built-in controller is electrically connected to the LED chip, there is no need for an electric wire for connecting the two in parallel, and the circuit pattern on the substrate is replaced. For this reason, in configuring a module that controls lighting of the illumination light source by the controller, the amount of wiring can be reduced as much as possible to realize a simple configuration.

  According to the present invention, when configuring a module that controls lighting of a light source for illumination by a controller, a simple configuration can be realized by reducing the amount of wiring as much as possible.

It is explanatory drawing which shows arrangement | positioning of the vehicle interior illuminating device which concerns on one Embodiment of this invention. It is explanatory drawing which shows the relative positional relationship with the seat of the light source shown in FIG. It is a block diagram which shows schematic structure of the control system of the map lamp and reading lamp which are shown in FIG. It is explanatory drawing which shows the wiring layout of the board | substrate of illumination lamp of FIG. 3, and illumination ECU. (A), (b) is explanatory drawing which shows an example of the sliding position in the front-back direction of a seat prescribed | regulated with the table memorize | stored in the hard disk of illumination ECU of FIG. 3, and the lighting pattern of a light source.

  Hereinafter, embodiments of the illumination module of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view showing the arrangement of illumination modules according to an embodiment of the present invention.

  As shown in FIG. 1, the vehicle 1 is provided with map lamps 21 and 23 corresponding to the driver's seat 3 and the passenger seat 5 at the front center of the roof liner 13 (see FIG. 4) in the vehicle. Further, the vehicle 1 corresponds to the second row and third row seats 7, 9, and 11 (however, the third row seat 11 corresponds only to both ends of three persons). The left and right sides of the roof liner 13 are respectively provided. And the illumination module which concerns on one Embodiment of this invention is applied to this reading lamp 25-31 and its lighting control system.

  As shown in the explanatory view of FIG. 2, the reading lamps 25 to 31 share the sliding range of the seats 7, 9, and 11 (occupants seated) in the front-rear direction of the vehicle 1 so as to share and cover the sliding ranges. Have four light sources 33a to 33d arranged at intervals. In this embodiment, each light source 33a-33d is comprised by three LED chips of RGB, and it is comprised so that it can light-emit by arbitrary colors by adjusting each brightness | luminance.

  Note that the double circles in FIG. 2 indicate the eye point P (the range in which the line of sight is moved) and the eye range when the occupant seated on the seats 7, 9, and 11 is reading at the slide positions of the seats 7, 9, and 11, respectively. L (movement range of the eye point P due to the physique difference of the occupant) is shown.

  Next, a schematic configuration of the control system of the reading lamps 25 to 31 and the map lamps 21 and 23 will be described with reference to the block diagram of FIG. In this embodiment, the light sources 33a to 33d of the reading lamps 25 to 31 are mounted on a circuit board 37 (corresponding to a board in claims) together with the controller built-in connector 35. The controller built-in connector 35 has a female connector portion 35a (corresponding to a connector portion in claims) to which the male connector 39a of the multiplex communication line 39 can be connected, and a controller 35b made of, for example, a one-chip microcomputer.

  The map lamps 21 and 23 also have light sources 33e and 33f that are configured by three RGB LED chips and can emit light of any color, similarly to the light sources 33a to 33d of the reading lamps 25 to 31. The light sources 33 e and 33 f of the map lamps 21 and 23 are also mounted on the circuit board 37 together with the controller built-in connector 35.

  Light sources 33 a to 33 d and light sources 33 e and 33 f are connected to the controller 35 b through a conductive pattern (not shown) of the circuit board 37. And the controller 35b is based on the control signal input from lighting ECU (Electronic Control Unit) 43 via the multiplex communication line 39, and the light sources 33a-33d of each reading lamp 25-31 and the light sources of the map lamps 21,23. The lighting and extinguishing of 33e and 33f are controlled.

  As shown in the explanatory diagram of FIG. 4, the circuit board 37 described above is disposed in the roof liner 13 of the vehicle 1, and the multiplex communication line 39 from the lighting ECU 43 connected to the controller built-in connector 35 on the circuit board 37 is These are routed inside the pillars 15 and 17 of the vehicle 1.

  Since the wiring in the pillars 15 and 17 is the multiplex communication line 39, the number of wirings is reduced as compared with the case where the individual wirings connected to the light sources 33a to 33d are connected to the pillars 15 and 17, respectively. It is possible to effectively utilize the limited space in the pillars 15 and 17 through which many lines are connected.

  As shown in FIG. 3, data on the vehicle speed of the vehicle 1 measured by the vehicle speed sensor 47 is input to the illumination ECU 43 from the engine ECU 45 via the in-vehicle LAN 41 at regular intervals. Further, the lighting ECU 43 receives the data of the slide positions in the front-rear direction of the second row and third row seats 7, 9, and 11 detected by the seat position sensors 51a to 51c from the seat ECU 49 via the in-vehicle LAN 41. Input every time. The slide position data of the seats 7, 9, and 11 may be input when the lighting ECU 43 requests the seat ECU 49.

  Further, the lighting ECU 43 includes seating state data detected by the seating sensors 53a to 53e from the seat ECU 49 via the in-vehicle LAN 41, and seat belt sensors 55a to 55e. Data on the seat belt wearing state of the detected seats 7, 9 and 11 (for three persons) is input.

  The illumination ECU 43 is connected to map lamp switches 21a and 23a for turning on and off the map lamps 21 and 23 and reading lamp switches 25a to 31a for turning on and off the reading lamps 25 to 31 via an interface (not shown). Yes.

  The illumination ECU 43 controls lighting and extinguishing of the map lamps 21 and 23 and the reading lamps 25 to 31 based on the input from the connection target described above. In particular, in the present embodiment, the illumination ECU 43 is based on the slide position data in the front-rear direction of the seats 7, 9, and 11 from the seat ECU 49 to the seat position sensors 51a to 51c and the on / off states of the reading light switches 25a to 31a. Thus, the lighting of the light sources 33a to 33d of the reading lamps 25 to 31 is controlled.

  Therefore, the illumination ECU 43 has a CPU, a RAM, a ROM, a hard disk, and the like (all not shown). Then, according to the program stored in the ROM, the CPU uses the RAM as a work area while referring to the table stored in the hard disk, and turns on and off the light sources 33a to 33d of the reading lamps 25 to 31. Take control.

  In the table stored in the hard disk, the slide positions in the front-rear direction of the seats 7, 9, and 11 and the lighting (including brightness = brightness) and extinguishing patterns of the light sources 33a to 33d corresponding thereto are defined. Yes.

  For example, as shown in the explanatory diagram of FIG. 5A, in the lighting pattern in the case where the seats 7, 9, and 11 are in a substantially middle slide position in the front-rear direction, the second light source 33b from the front is 100% duty. Illuminated. The front light source 33a is turned on with a 20% duty, the third light source 33c from the front is turned on with a 50% duty, and the rear light source 33d is turned off.

  Further, as shown in the explanatory diagram of FIG. 5B, in the lighting pattern in the case where the seats 7, 9, and 11 are in a substantially intermediate slide position in the front-rear direction, the third light source 33c from the front is 100% duty. Illuminated. The second light source 33b from the front is turned on with a 20% duty, the rearmost light source 33d is turned on with a 50% duty, and the front light source 33a is turned off.

  As described above, in this embodiment, the three LED chips of RGB that are the light sources 33a to 33d of the reading lights 25 to 31 and the controller built-in connector 35 are mounted on the same circuit board 37, and the controller built-in connector 35 is mounted. The signal line between the controller 35b and the light sources 33a to 33d is eliminated. At the same time, the controller 35 b and the lighting ECU 43 are connected by a multiplex communication line 39, and the multiplex communication line 39 is routed inside the pillars 15 and 17 of the vehicle 1.

  For this reason, the number of wires is reduced compared to the case where individual wires connected to the respective light sources 33a to 33d are routed through the pillars 15 and 17, and the other inside the pillars 15 and 17 where many other wires are routed are limited. Space can be used effectively.

The present invention is extremely useful with in constructing the lighting module to lighting control of the plurality of light sources for a light seat irradiation of the vehicle based on a control signal inputted to the controller.

DESCRIPTION OF SYMBOLS 1 Vehicle 3 Driver's seat 5 Passenger's seat 7, 9, 11 Seat 13 Roufrina 15, 17 Pillar 21, 23 Map lamp 21a, 23a Map lamp switch 25-31 Reading lamp 25a-31a Reading lamp switch 33a-33f Light source 35 Connector with built-in controller 35a Female connector (connector)
35b Controller 37 Circuit board 39 Multiplex communication line 39a Male connector 41 Car LAN
43 Lighting ECU
45 Engine ECU
47 Vehicle speed sensor 49 Seat ECU
51a to 51c Seat position sensor 53a to 53e Seating sensor 55a to 55e Seat belt sensor L Eye range P Eye point

Claims (1)

Based on the control signal inputted to the controller, a lighting module for lighting control of the plurality of light sources of seat light irradiation of the vehicle,
An LED chip as the light source for cover with a plurality implemented share the sliding range of the seat base plate at intervals,
Is mounted on the substrate and a controller built-in connector that is electrically connected to each LED chip on the substrate,
Based on a control signal input to the built-in controller via a multiplex communication line connected to a connector portion of the controller built-in connector, the controller indicates each LED chip , and the seat indicated by data from a seat position sensor controlling lit by turning on and off pattern corresponding to the slide position in the longitudinal direction of,
An illumination module characterized by that.

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