AUTOMOBILE SHOCK ABSORBER WHICH USES PERMANENT MAGNETS AND ELECTROMAGNETS

• US 20150001862A1
• Filed: 04/16/2012
• Published: 01/01/2015
• Est. Priority Date: 03/13/2012
• Status: Active Grant

• Current Assignee: Dongchun Co., Ltd.
• Original Assignee: Dongchun Co., Ltd.
• Inventors: Son, Song-Nam
• Granted Patent: US 9,120,440 B2
• Time in Patent Office: Days
• US Class Current: 293/120
• CPC Class Codes: B60R 19/03 characterised by material, e.g. composite B60R19/18 takes precedence
• CPC Class Codes: B60R 19/04 formed from more than one section in a side-by-side arrangement
• CPC Class Codes: B60R 19/483 with obstacle sensors of electric or electronic type
• CPC Class Codes: H01F 7/021 Construction of PM H01F7/0278 takes precedence; PM compositions H01F1/032

Abstract

A shock absorber of a vehicle employing permanent magnets and electromagnets includes a first permanent magnet on an internal surface of a bumper face; a second permanent magnet on the front surface of a shock absorbing foam, which is installed on a front surface of the vehicle body and has the same polarity as the first permanent magnet; and an electromagnet on the internal surface of the shock absorbing foam, and has the same polarity as that of the second permanent magnet when the vehicle operating speed exceeds the standard vehicle speed, wherein the first permanent magnet and the second permanent magnet are respectively comprised of a plurality of partitioned magnet blocks; and their external surfaces are coated with rubber or synthetic resin thereby reducing damage.

Claims

1. A shock absorber for a vehicle comprising:

a first permanent magnet on an internal surface of a bumper face;

a second permanent magnet on a front surface of a shock absorbing foam on a front surface of the vehicle body and has the same polarity as that of the first permanent magnet; and

an electromagnet on an internal surface of the shock absorbing foam, and has the same polarity as that of the second permanent magnet when the vehicle operating speed exceeds the standard vehicle speed,

wherein the first permanent magnet and the second permanent magnet are respectively comprised of a plurality of partitioned magnet blocks.

2. The shock absorber according to claim 1, wherein the magnet blocks use permanent magnets and electromagnets coated with rubber or synthetic resin coating layer.

3. The shock absorber according to claim 1, wherein the first permanent magnet and the second permanent magnet are installed so that the same polarity face each other in a side door of the vehicle.

4. The shock absorber according to claim 1, wherein the electromagnet operates when an operating speed of a vehicle exceeds a standard speed measured by speedometer of the vehicle and the distance between the vehicle and an object ahead is within a standard distance measured by a distance detecting sensor in a fog lamp or an emergency lamp installed on a front surface of the vehicle.

5. The shock absorber according to claim 1, wherein the electromagnet is respectively installed in an internally provided space divided by a plurality of reinforcing units which are installed at regular intervals inside of the shock absorbing foam and support the second permanent magnet from behind.

6. The shock absorber according to claim 1, wherein the first permanent magnet is installed inside of the bumper face and a side door via a magnetism intercepting plate, thereby allowing only the magnetism acting toward the direction of the repulsive force acting space while blocking the magnetism acting toward the direction of the bumper face and the side door.