Car theft prevention case

Abstract

To provide a car theft prevention case for preventing the theft of a car by misusing radio waves from an immobilizer chip. [Solution] The car theft prevention case reduces the reach of radio waves emitted from an immobilizer chip 10 with an anti-theft function to within 80 cm, and the reduction material is packaged using thin metal sheet material, with a case structure consisting of a polyethylene and polypropylene Ziploc bag 11, glass cloth aluminum foil 12, and acrylic adhesive. The material structure also includes an uneven structure of glass cloth aluminum foil, and the radio waves emitted from the immobilizer chip are controlled by the mixing ratio of the material.

Description

[Technical field]

[0001] This invention relates to the prevention of automobile theft. [Background technology]

[0002] Automobiles are equipped with immobilizers and immobilizer chips that use individual frequency technology to prevent automobile theft, and automobile thefts have occurred that exploit weaknesses in these immobilizers and immobilizer chips. [Prior art documents] [Patent documents]

[0003] Patent Publication No. 2024-14869 An anti-theft device for automobiles that is attached to an electronic control device mounted in an automobile and to automobile parts mounted in the vicinity of the electronic control device, the anti-theft device for automobiles comprising: a main body that covers at least a portion of the electronic control device and at least a portion of the connector of a cable connected to the electronic control device; and a retaining portion that is formed integrally with the main body and prevents the connector from coming loose from the electronic control device.

[0004] Patent No. 7374537 An automobile theft prevention device that is attached to an electronic control device mounted in an automobile and automobile parts mounted in the vicinity of the electronic control device, the automobile theft prevention device comprising: a main body that covers at least a portion of the electronic control device and at least a portion of the connector of a cable connected to the electronic control device; and a retaining portion that is formed integrally with the main body and prevents the connector from coming loose from the electronic control device.

[0005] [Non-Patent Document 1] An immobilizer is a security system designed to prevent car theft. The engine will only start if the codes registered on the car and key match. The key has a built-in chip that transmits the code, and when you try to start the engine, the code is sent from the key to the car's engine control unit, and the two codes are checked; if they match, the engine will start. Summary of the Invention [Problem to be solved by the invention]

[0006] Immobilizers and immobilizer chips with anti-theft functions for automobiles are designed to have a high radio wave output, which spreads the radio wave range over a wide area. Anti-theft immobilizers and portable immobilizer chips equipped in automobiles are designed to activate automobile functions by synchronizing individual encrypted radio waves. The radio wave operating range of the immobilizer is set to less than 1 meter, and the push button radio waves attached to the immobilizer chip have a range of about 8 meters. Misuse of this convenience leads to automobile theft. [Means for solving the problem]

[0007] This structure physically controls the radio wave output of an immobilizer chip with an anti-theft function for automobiles and reduces the range of radio waves emitted from the immobilizer chip with an anti-theft function for automobiles to a specified range. The reduction structure is packaged using thin metal sheet material and the reduction structure material is a case structure consisting of a polyethylene and polypropylene Ziploc bag, glass cloth aluminum foil and acrylic adhesive. Furthermore, the reduction structure is also a concave-convex structure of glass cloth aluminum foil and an acrylic adhesive structure material and can be adjusted by the thickness of the glass cloth aluminum foil and the mixing ratio of materials. The structure controls the radio waves emitted from the immobilizer chip. When the immobilizer chip is removed from the anti-theft case, it functions as per the instruction manual of the immobilizer chip without impairing its performance. Effect of the Invention

[0008] The radio waves of the immobilizer chip in the anti-theft case are protected by a thin metal film so that they cannot be intercepted from outdoors, and furthermore, since communication between indoors and outdoors is not possible, the car functions cannot be started, making it impossible to steal the car. Also, since the immobilizer chip is stored in the case, the anti-theft case has a structure in which the immobilizer chip switch will not function even if it is accidentally pressed. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is an explanatory diagram showing a method for implementing the anti-theft case for a car (embodiment 1). [Diagram 2] FIG. 2 is an explanatory diagram showing a method for implementing the anti-theft case for a car (embodiment 2). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The range of the radio waves emitted by the immobilizer chip in the anti-theft case is set to within 80 cm, and the immobilizer chip is designed to be used within 80 cm of the lock switch installed in the car to start the car, making it impossible for others to steal the radio waves from the immobilizer chip. The material that reduces the radio waves emitted by the immobilizer chip in the anti-theft case is wrapped in thin metal sheet material, and the glass cloth aluminum foil can also be adjusted as a multi-layered structure. Radio waves emitted from immobilizer chips inside cars can be blocked with radio wave opaque materials such as empty cans. Furthermore, the radio wave reach of the spare immobilizer chip in the anti-theft case that is always kept inside is set to within 80 cm, so it cannot be received from outdoors, making it impossible for the car to be stolen. EXAMPLES

[0011] The embodiment shown in FIG. 1 is a cross-sectional view of an anti-theft case for a car, with 10 in the center being an immobilizer chip, 11 being a ziplock bag made of polyethylene and polypropylene, and 12 being a case structure made of glass cloth, aluminum foil, and acrylic adhesive. EXAMPLES

[0012] The embodiment in FIG. 2 is a plan view of an anti-theft case for a car, with 10 in the center being an immobilizer chip, 11 being a ziplock bag made of polyethylene and polypropylene, and 12 being a case made of glass cloth, aluminum foil, and acrylic adhesive. [Industrial Applicability]

[0013] This invention is an anti-theft case designed to prevent automobile theft, but the anti-theft case can also be used to prevent theft of expensive construction machinery and agricultural equipment used both indoors and outdoors.In addition, expensive vehicles and machinery require an immobilizer chip with an anti-theft function as an anti-theft device, and the anti-theft case can be used for this purpose. [Explanation of symbols]

[0014] 10 Immobilizer chip 11 Ziploc bag 12 Glass cloth aluminum foil

Claims

[Claim 1] This anti-theft case reduces the range of radio waves emitted from an immobilizer chip with an anti-theft function to within 80 cm, the reduction material is packaged using thin metal sheet material, and the reduction material has a case structure consisting of a polyethylene and polypropylene ziplock bag, glass cloth aluminum foil and acrylic adhesive, the reduction material also has an uneven structure of glass cloth aluminum foil, and the radio waves emitted from the immobilizer chip are controlled by adjusting the thickness of the reduction material and the mixing ratio of the material, and the anti-theft case is configured to function without impairing the function of the immobilizer chip when the anti-theft case is not in use.

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