Warm air channel outlet control device

Patent metadata

Field	Value
Publication number	US-10696130-B2
Application number	US-201615383205-A
Country	US
Kind code	B2
Filing date	Dec 19, 2016
Priority date	Dec 21, 2015
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

A heating and air conditioning system for a motor vehicle including a housing having an air outlet, a heating heat exchanger disposed inside the housing with a warm air path to heat air flowing therethrough, a warm air duct having a warm air intake opening and a warm air duct discharge opening disposed downstream of the heating heat exchanger channeling a partial flow of warm air from the warm air path to the air outlet, and a mode control damper rotatable about a rotational axis and connected downstream of the warm air duct in terms of flow, wherein the air outlet may be selectively opened completely or partially, and in a closed state may be partially or completely closed. The mode control damper functions simultaneously as the control damper for controlling the volume of air exiting the warm air duct discharge opening.

First claim

What is claimed is:

1. A heating and air conditioning system for a motor vehicle, the system comprising:
a housing having an air outlet,
a heating heat exchanger or a heater disposed inside the housing and across which a warm air path extends, wherein air flowing through the warm air path is heated as it passes the heating heat exchanger or the heater;
a warm air duct having a warm air intake opening and a warm air duct discharge opening disposed downstream of the heating heat exchanger or the heater, the warm air duct channeling a partial flow of warm air from the warm air path to the air outlet; and
a mode control damper rotatable about a rotational axis and connected downstream of the warm air duct in a direction of flow, wherein the at least one air outlet may be selectively opened completely or partially, and in a closed state may be partially or completely closed, wherein the mode control damper and the warm air duct are arranged wherein the mode control damper functions simultaneously as a control damper for controlling a volume of air exiting the air outlet and the warm air duct discharge opening, and wherein the mode control damper has, on a side facing the warm air duct discharge opening, two spaced apart lateral segments configured to block a flow of air outward and inward parallel to the rotational axis in a region of the warm air duct discharge opening, over an entire adjustment range of the mode control damper;
wherein the warm air duct discharge opening extends from the rotational axis of the mode control damper to an opposing sealing edge of the warm air duct against which the mode control damper rests in the closed state, the sealing edge spaced from the rotational axis in a direction perpendicular to the rotational axis.

2. The heating and air conditioning system according to claim 1 , wherein the warm air duct discharge opening extends between the rotational axis of the mode control damper and a housing wall of the housing.

3. The heating and air conditioning system according to claim 1 , wherein, as the mode control damper rotates, the segments of the mode control damper pass outside of the warm air duct alongside walls of the warm air duct disposed opposite one another and oriented perpendicular to the rotational axis.

4. The heating and air conditioning system according to claim 1 , wherein the warm air duct discharge opening extends alongside walls of the warm air duct, the walls arranged opposite one another and oriented perpendicular to the rotational axis, from a first housing side up to a second, opposite housing side of the housing, wherein the lateral segments are attached and positioned on the mode control damper wherein as the mode control damper rotates about the rotational axis, the segments move in cutouts in the walls of the warm air duct at the warm air duct discharge opening, and wherein each of the cutouts is formed as complementary to the lateral segments.

5. The heating and air conditioning system according to claim 1 , wherein at least one of the mode control damper and the warm air duct has one or more openings and a distance is provided between the warm air duct discharge opening and the mode control damper in the closed state, as a result of which the warm air duct discharge opening is not completely closed, even when the mode control damper is in the closed state.

6. The heating and air conditioning system according to claim 1 , further comprising at least one baffle plate formed on the warm air duct, the at least one baffle plate conducting a portion of an air flow from the warm air duct to bypass the mode control damper.

7. The heating and air conditioning system according to claim 1 , wherein an intermediate space between the lateral segments is provided with a filler.

8. The heating and air conditioning system according to claim 1 , wherein an intermediate space between the lateral segments is filled by a depression on an opposite side of the mode control damper.

9. The heating and air conditioning system according to claim 1 , wherein the warm air duct supplies warm air to a defrost outlet, and the mode control damper is a defroster damper.

10. The heating and air conditioning system according to claim 1 , wherein any air exiting the warm air duct through the warm air duct discharge opening passes through a boundary having a perimeter defined by cooperation of the sealing edge, an edge of a first one of the lateral segments, an inner surface of the mode control damper, and an edge of a second one of the lateral segments.

Assignees

• Hanon Systems

Inventors

• Klein Torsten
• Handwerk Detlef
• Ferreira Antonio Marques
• Wiesmann Ralph

Classifications

• B60H2001/00721

  Air deflecting or air directing means · CPC title

• B60S1/54

  using gas, e.g. hot air · CPC title

• B60H1/00842

  the system comprising a plurality of damper doors; Air distribution between several outlets · CPC title

• B60H1/00835 Primary

  Damper doors, e.g. position control (construction or arrangement of damper doors B60H1/00664; B60H1/00864 takes precedence) · CPC title

• B60H1/00678 Primary

  the axis of rotation being in the door plane, e.g. butterfly doors · CPC title