Ultrasonic sensor assembly for a vehicle reversing radar

• US 6,909,670 B1
• Filed: 03/19/2004
• Issued: 06/21/2005
• Est. Priority Date: 03/19/2004
• Status: Expired due to Fees

• Current Assignee: Coligen Corp.
• Original Assignee: Shih-Hsiung Li
• Inventors: Li, Shih-Hsiung
• Primary Examiner(s): Lobo, Ian J.
• Application Number:
  US10/804,115
• Time in Patent Office: 459 Days
• Field of Search: 367/140, 367/173, 367/176, 736/49
• US Class Current: 367/140
• CPC Class Codes: G01S 7/521 Constructional features

Abstract

An ultrasonic sensor assembly for a vehicle reversing radar has an ultrasonic sensor (10) with two electric wires (12). A sleeve (20) is made of rubber material and has a chamber (22) receiving the sensor (10). A cone-shaped opening (24) is defined at a front end of the chamber (22). A guide wave cone (30) is provided at the center of the cone-shaped opening (24) and abuts the sensor (10). By using the sensor assembly, the vehicle reversing radar can have a high precision with a long detectable distance in a concentrated area.

Claims

1. An ultrasonic sensor assembly for a vehicle reversing radar comprising:

an ultrasonic sensor (10) with two electric wires (12);

a sleeve (20) made of rubber material, the sleeve having a chamber (22) receiving the sensor (10), a U-like bracket integrated in the sleeve (20), and a cone-shaped opening (24) with a center defined at a front end of the chamber (22); and

a guide wave cone (30) provided at the center of the cone-shaped opening (24) and mounted on the U-like bracket (32) to abut the sensor (10).

2. The ultrasonic sensor assembly as claimed in claim 1, wherein the sleeve (20) further has a barrier (240) formed at a lower side of the opening (24).

3. The ultrasonic sensor assembly as claimed in claim 2 further comprising a heating wire (34) extending through and out from two free ends of the U-like bracket (32).

4. The ultrasonic sensor assembly as claimed in claim 1 further comprising a housing (40) with a passage (42) for receiving the sleeve (20) and sensor (10), and a back cover (44) provided at a rear side of the housing (40).

5. The ultrasonic sensor assembly as claimed in claim 4, wherein the sleeve (20) has a flange (26) formed at a rear side and abutting a shoulder (420) formed in the passage (42).

6. The ultrasonic sensor assembly as claimed in claim 4 further comprising a cushion (50) provided between the back cover (44) and the sleeve (20).