DESC:“STATUS INDICATOR LED ASSEMBLY OF ANTI THEFT IMMOBILIZER DEVICE”
Field of the invention:
The present invention relates to an automotive lock mechanism and more particularly, to a LED assembly of an anti theft immobilizer device.
Background of the invention:
Nowadays, almost all vehicles have inbuilt immobilizer systems which prevent the engine from starting unless the correct key is being used. The immobilizer systems are electronic systems that recognize the owner of the vehicle with a unique ability to protect against intrusion by not allowing the engine to be turned on through immobilizer unit. The status of immobilizer is indicated by a LED (Light Emitting Diode).
When the vehicle is started, an indicator LED for the immobilizers illuminate for a few seconds showing that the correct key has been used. If the computer of the vehicle doesn’t recognize the code on the key, the light will flash multiple times. The vehicles engine won’t start until a recognized key is used.
Currently, the LED assembly on the immobilizer device is done by adhesive. However, the over flow of adhesive over LED creates the problem of partial visibility of LED glow. Moreover, LED assemblies are rejected during quality checking due to overflow of adhesive.
Accordingly, there exists a need to provide an immobilizer status indicator device with LED which overcomes the problems arising due to the use of adhesive.
Objects of the invention:
An object of the present invention is to resolve the chemical safety concern by eliminating adhesive from LED assembly of an antitheft immobilizer device.
Another object of the present invention is to reduce assembly rejection due to over flow of adhesive on LED in antitheft immobilizer device.
Summary of the invention
The present invention discloses a status indicator LED assembly of an anti theft immobilizer device, that overcomes the discrepancies of prior art by avoiding the use of any type of adhesive in the assembly. The LED with wire harness is slide fitted in front side of a cylindrical housing. The housing is configured with a slot, through which a non returnable stopper is inserted for holding the LED fitted therein. Stopper is a clip like structure which keeps the LED in place. This arrangement resolves the chemical safety concern by eliminating adhesive from LED assembly of the antitheft immobilizer device and reduces assembly rejection due to over flow of adhesive on LED in antitheft immobilizer device.
Brief description of the drawings:
The objectives and advantages of the present invention will become apparent from the following description read in accordance with the accompanying drawings wherein,
Figure 1 shows a perspective view of anti theft immobilizer status indicator LED assembly, in accordance with the present invention;
Figure 1a shows an enlarged view of LED housing of the anti theft immobilizer status indicator LED assembly, in accordance with the present invention;
Figure 2 shows a side view of anti theft immobilizer status indicator LED assembly, in accordance with the present invention;
Figure 2a shows section A-A of the assembly of figure 1 in accordance with the present invention; and
Figure 3 shows cut section of LED housing showing the internal arrangement, in accordance with the present invention.
Detailed description of the embodiments:
The foregoing objects of the invention are accomplished and the problems and shortcomings associated with the prior art techniques and approaches are overcome by the present invention as described below in the preferred embodiment.
An immobilizer system of a vehicle is an electronic system fitted on the vehicle that prevents the engine from running unless the correct transponder car key is present. The status of immobilizer is indicated by a LED fitted in a LED housing. The present invention avoids use of any adhesive for fitting the LED in the LED housing. In the present invention, the LED assembly guides the LED with a wire harness. The wire harness connects the LED to the immobilizer unit through a coupler. Retention of LED with the housing is done by configuring a slot in the housing and inserting a clip like stopper through it for holding the LED. 0.1 mm clearance is maintained between LED & stopper to avoided play there between.
The present invention is illustrated with reference to the accompanying drawings, wherein numbers indicated in the bracket represent the components of the invention throughout the description. The components of the invention and the reference numbers are listed in the table below:
Ref. No. Component Name
10 LED housing
20 Stopper
30 Wire harness
40 Coupler
50 LED
60 Slot

Referring now to figures 1 to 3, there is shown an anti-theft immobilizer status indicator LED assembly (100) (hereinafter ‘the LED assembly (100)’), in accordance with the present invention. Novelty of the invention lies in that LED is fitted therein without use of any adhesive. The LED assembly (100) comprises if a housing (10) having a cylindrical shape. The housing (10) is open in front side and back side. A LED (50) with a wire harness (30) is slide fitted in the front side of the housing (10). A wire harness connects the LED (50) to the antitheft immobilizer device through a coupler (40). The housing (10) is configured with a slot (60) on its cylindrical surface near the front side and a non-returnable stopper (20) having a clip like structure is fitted in the slot (60) holding the LED (50) and thereby stopping the LED (50) to come out of the housing. In an embodiment, a clearance of 0.1mm is maintained between the LED (50) and the stopper (20) for avoiding play there between, as shown in figure 3.
ADVANTAGES OF THE INVENTION
• The LED assembly (100) resolves the chemical safety concern by eliminating adhesive from LED assembly.
• The LED assembly (100) reduces the LED assembly rejection due to over flow of adhesive.
• The LED assembly (100) reduces cost by eliminating the adhesive.
The foregoing objects of the invention are accomplished and the problems and shortcomings associated with prior art techniques and approaches are overcome by the present invention described in the present embodiment. Detailed descriptions of the preferred embodiment are provided herein; however, it is to be understood that the present invention may be embodied in various forms. Therefore, specific details disclosed herein are not to be interpreted as limiting, but rather as a basis for the claims and as a representative basis for teaching one skilled in the art to employ the present invention in virtually any appropriately detailed system, structure, or matter. The embodiments of the invention as described above and the methods disclosed herein will suggest further modifications and alterations to those skilled in the art. Such further modifications and alterations may be made without departing from the spirit and scope of the invention.

,CLAIMS:CLAIMS
We claim:
1. A status indicator LED assembly (100) of an anti-theft immobilizer device, the status indicator LED assembly (100) comprising:
a housing (10) having a cylindrical shape with front side and back side open;
a LED (50) with a wire harness (30) slide fitted in the front side of the housing (10), wherein the wire harness (30) connects the LED (50) to the anti theft immobilizer unit though a coupler (40);
characterized in that,
the housing (10) is configured with a slot (60) on the cylindrical surface near front side thereof;
a stopper (20) having a clip like structure is fitted in the slot (60) holding the LED (50) and thereby stopping the LED (50) to come out of the housing, wherein a clearance of 0.1mm is maintained between the LED (50) and the stopper (20) thereby avoiding play there between.
2. The status indicator LED assembly (100) as claimed in claim 1, wherein the stopper (20) is a non-returnable stopper.
Dated this 27th day of July 2018

Prafulla Wange
(Agent for Applicant), IN-PA/2058