LED Decrease
Light Type Ignition Key-Ring
There was the request "Cannot this be done?", from the person
who purchased mirror unit .
The person reason, at night, he is poking around the keyhole looking
for the ignition keyhole .
I was "poking around of the keyhole" situation as well as
the person .
Certainly, the pool of the ignition key shines in the luxury car .
Well, I thought be able to use the decrease lights system of the
room light by the person's proposal .
Don't you think that the timing and operation which the interior
light of FIT turns on are considered extremely? .
First, by lock release, the light is switched on, and it gets in,
and from ignition key "ON", after a while gradually, it
becomes dark and the light is put out .
The light will be switched on if an ignition key is extracted when
getting off a car .
The door is locked and it turns it off gradually .
"Luxury car" is feeling very .
The lighting around the ignition key was made by using the operation
timing of this interior light .
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Diameter of Ø3 Blue LED, and 10mA CRD (Current
Regulative Diode) .
Transparent acrylics stick of 3mm Square .
Ratings current of LED is 20mA,
So, 10mA is used in parallel . |
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LED is connected in series and CRD of 10mA is connected
in parallel .
From a side with a long leg (Anode), current enters and LED emits
light .
CRD connects to LED the side which does not have a belt .
If it makes a mistake, Meter ASSY may break .
Yellow arrow is direction of current .
There is a method of dropping 12V up to 3.3V by using resistor,
too .
But, It's necessary to calculate whether to use the resistor of
ohms how many from the number of LED .
And Car's battery voltage is very easy the current limitation with
CRD because it is unstable .
But this one is more expensive . |
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An acrylics stick square 3mm is bent in the size
of a key cylinder .
The key cylinder's diameter is 38mm .
The thing which is in a house with slide calipers was measured,
and "MALABAR's Black Pepper" found it at last .
Oh dear it does though this bottle is 39mm . |
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An acrylic stick is parched with the gas stove,
and it wraps it around the bottle .
Take care the burn,
The acrylic fiber becomes about 180 degrees softer .
This plastic operation was the most difficult .
It failed by about five sets . |
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Respect of the arrow (surface) is ground with the
emery paper etc. and luster is lost .
When still transparent, it is for light not to come out to the
surface . |
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The light of LED is injected from the part of the
arrow into an acrylic stick .
Therefore, this part is polished with the compound etc. and made
transparent .
One LED is installed in this one item .
So, they are two items in double . |
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The left is one item specification, and the right
is the above-mentioned two item specification .
Light did not beautifully turn to the terminal in one item specification
of making for trial purposes . |
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LED connects in series the side which does not have
a mark in a minus side in parallel in CRD .
Current enters from a red line and it go to black line .
Current is held down to 20mA by CRD of an exit .
LED currently used is 20mA of rated current .
Incidentally they are 3000mcd .
1000mcd or more is written as super high brightness LED . |
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Each line is collectively insulated and covered
by the heat contraction tube . |
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The ring is installed in the key cylinder .
The ring enters it internally in having installed it as it was .
So, After a Ty-Rap had been wrapped internally, it installed it
.
Because the width of this Ty-Rap was just good, the surface of
the ring and the surface of the key cylinder are equal in height
. |
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The black line created in the above figure is connected
to No. 12 and the Green/Red line of a 20 pin A coupler by Electro-Tap
among 3 connectors connected to Meter ASSY .
No. 12 is minus output and is the decrease light system line of
interior light .
P.S.
There is a place connectable more easily than this place. Refer
to "LED decrease light type footlights" .
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Similarly, the No. 1 pin White/Red line of a 20
pin A coupler are always power supplies, and this line is a power
supply supply line to interior light .
The red line created in the above figure is connected to No. 1
pin white / red line by Electoro-Tap . |
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It is a circuit chart of the interior light . |
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It is pin assignment of the coupler of an entry
light control system . |
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Explanation of a coupler . |
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The hole of a handle column cover is extended about
3mm of one side.
The rest is returned and is completion .
<Supplement>
You should confirm lighting before it processes it because the space
is open from the key cylinder just a little for the time being .
Processing may be unnecessary if you are convinced . |
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Timing to which the interior light lights synchronizes
with operation .
It's this extent because blue LED the light used is strong in daytime
.
The height of the ring and the column cover is the same and perfect,
too . |
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Night is conspicuous truly .
I think it is interesting even if blinking car security is misappropriated
to this . |
Became easy to insert the key at nighttime .
Because light is strong, blue one around .
This time, It was the most difficult to bend an acrylics stick in
the shape of a ring .
If there is a pillar pipe like diameter of inner 38mm, it can manufacture
very easily having used it .
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