LED Decrease Light Type Ignition Key-Ring

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 .

  • Materials
Materials

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 .

  • Circuit diagram
Circuit diagram

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 .

  • Processing
MALABAR's Black Pepper

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 .

Ring.

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 .

Surface grinding.

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 .

Surface luster.

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 .

Lighting examination.

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 .

Solder.

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 .

Insulation & Fixation.

Each line is collectively insulated and covered by the heat contraction tube .

  • Installing
Installing.

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 .

20 pin A coupler pin of No. 12.

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" .

20 pin A coupler pin of No. 1.

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 .

Circuit diagram 1.

It is a circuit chart of the interior light .

Circuit diagram 2.

It is pin assignment of the coupler of an entry light control system .

Circuit diagram 3.

Explanation of a coupler .

Hole diameter expansion.

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 .

  • Completion
Completion 1.

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 .

Completion 2.

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 .

 

HOME
DIY MENU