Apparatus for measuring concentration of CO 2 for vehicle

• US 8,590,366 B2
• Filed: 12/12/2011
• Issued: 11/26/2013
• Est. Priority Date: 10/05/2011
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Inventors: Park, June Kyu, Kim, Yong Chul, Park, Hee Sang, Ku, Jun Mo, Kim, Moo Yong, Kim, Hyun
• Primary Examiner(s): Larkin, Daniel S
• Assistant Examiner(s): RAY, JAMAR K
• Application Number:
  US13/323,557
• Publication Number:
  US 20130086976A1
• Time in Patent Office: 715 Days
• Field of Search: 73/232, 73/233, 73/310.1, 73/310.2, 73/310.3, 73/310.5
• US Class Current: 73/31.01
• CPC Class Codes: G01N 21/3504 for analysing gases, e.g. multi-gas analysis

Abstract

An apparatus for measuring a concentration of CO₂ for a vehicle may include an indoor panel of a vehicle in which an air inlet is mounted, and a CO₂ sensing unit mounted in the indoor panel, including a light emitting unit, a light receiving unit, and a case surrounding the light emitting unit and the light receiving unit so as to reflect and move light on a plane, and vertically introduced with air introduced into the inlet with respect to the plane on which light moves.

Claims

1. An apparatus for measuring a concentration of CO₂ for a vehicle comprising:

an indoor panel of the vehicle including an air inlet; and

a CO₂ sensing unit mounted on the indoor panel, including a light emitting unit, a light receiving unit, and a case surrounding the light emitting unit and the light receiving unit so as to reflect and direct light on a plane, and vertically introduced with air introduced into the inlet with respect to the plane on which light moves;

wherein the inside of the indoor panel of the vehicle is provided with an interruption unit interrupting the transmission of light to the air inlet to prevent the light emitted from the light emitting unit from being leaked to the inside of the vehicle.

2. The apparatus of claim 1, wherein air is introduced into the CO₂ sensing unit from an interior of the vehicle through the plane, and is discharged to the outside of the vehicle.

3. The apparatus of claim 1, wherein the CO₂ sensing unit has a reflective film having a polygonal shape substantially surrounding the light emitting unit and the light receiving unit and directs light emitted from the light emitting unit to the light receiving unit by reflecting the emitted light a plurality of times.

4. The apparatus of claim 1, wherein the CO₂ sensing unit has the light emitting unit mounted on one side of the case and the light receiving unit mounted on another side of the case and has an air introduction hole corresponding to the air inlet mounted on a front of the case.

5. The apparatus of claim 1, wherein the interruption unit has a cross section shape in which bent pieces are overlappingly disposed in parallel to transmit air and interrupt light.

6. The apparatus of claim 1, wherein the air inlet of the indoor panel of the vehicle is provided with a cover and the cover is provided with a hooked clamp hooked by being inserted into the inlet and the interruption unit is indented with a space part in which the hooked clamp is positioned.

7. The apparatus of claim 1, wherein the indoor panel of the vehicle is an indoor panel of the B pillar of the vehicle.

8. An apparatus for measuring a concentration of CO₂ for a vehicle comprising:

an indoor panel of the vehicle including an air inlet; and

a CO₂ sensing unit mounted on the indoor panel, including a light emitting unit, a light receiving unit, and a case surrounding the light emitting unit and the light receiving unit so as to reflect and direct light on a plane, and vertically introduced with air introduced into the inlet with respect to the plane;

a housing mounted in the indoor panel and having the air inlet connected to one side thereof and having an air outlet connected to the other side thereof, wherein the CO₂ sensing unit is mounted in the housing.

9. The apparatus of claim 8, wherein the housing is formed so that the air outlets are formed at both sides opposite to the air inlet, respectively.