US 5,392,845 AGranted

Air-conditioning device

AssigneeNippondenso Co., Ltd.

InventorsYuuji Honda, Yuichi Kajino, Takayoshi Kawai, Yuji Ito, Katsuhiko Samukawa

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Abstract

An air-conditioning device capable of obtaining a suitable blow-out temperature through one passage from the initial period of change even when the air-conditioning operation in which either a first passage or a second passage is closed is changed into an operation condition in which it is opened. A feet mode in which the hot air is blown to the feet of a passenger from a second passage 7, is changed to a bilevel mode in which a first passage 6 that communicates with the upper half body of the passenger is switched from the closed state to the open state. During a predetermined period of time in the initial period following the change, the temperature blown from the first passage 6 is determined based upon a blow-out temperature of the second passage 7 and a desired blow-out temperature TAOV of the first passage 6. At the time of changing the mode, therefore, even when a first temperature sensor 25 is detecting a temperature near a desired blow-out temperature of the first passage 6 before the mode is changed, the air of the present temperature is not blown from the first passage 6 but, instead, a by-pass opening/closing damper 15 is opened, so that the air of a low temperature is blown from the first passage 6.

Claims9

Dependent claims

An air-conditioning device comprising:

a main passage through which air flows into a room;
a first passage branched from said main passage;
a second passage branched from said main passage;
a passage opening/closing means which opens or closes said first passage and said second passage;
a first temperature adjusting means which adjusts the temperature of the air passing through said first passage;
a second temperature adjusting means which adjusts the temperature of the air passing through said second passage;
a first temperature sensor which detects the temperature of the air passing through said first passage;
a second temperature sensor which detects the temperature of the air passing through said second passage;
a first blow-out temperature determining means which determines a desired below-out temperature of the air blowing out from said first passage;
a second blow-out temperature determining means which determines a desired blow-out temperature of the air blowing out from said second passage;
a judging means which judges whether either one of said first passage or said second passage is shifted from the closed state to the open state by said passage opening/closing means;
a first control means which, when it is so judged by said judging means that said either one of the passages is shifted from the closed state to the open state, works to control said temperature adjusting means of said one passage for a predetermined period of time immediately after the judgement based upon a desired blow-out temperature of the other passage of either said first passage or said second passage end upon said desired blow-out temperature of said one passage;
and
a second control means which, after the predetermined period of time has passed immediately after said judgement, works to control said temperature adjusting means of said one passage based upon a value detected by said temperature sensor provided in said one passage and upon said desired blow-out temperature of said one passage.

11 more elements

An air-conditioning device comprising:

a main passage through which air flows into a room;
a first passage branched from said main passage;
second passage branched from said main passage;
a passage opening/closing means which opens or closes said first passage and said second passage;
a temperature adjusting means which adjusts the temperature of the air passing through said first passage;
a temperature sensor which detects the temperature of the air passing through said first passage;
a blow-out temperature determining means which determines a desired blow-out temperature of the air blowing out from said first passage;
a judging means which judges whether said first passage is shifted from the closed state to the open state by said passage opening/closing means;
a first control means which, when it is so judged by said judging means that said first passage is shifted from the closed state to the open state, works to control said temperature adjusting means for a predetermined period of time immediately after the judgement based upon a substitute blow-out temperature of said second passage and upon said desired blow-out temperature of said first passage;
and
a second control means which, after the predetermined period of time has passed immediately after said judgement, works to control said temperature adjusting means based upon a value detected by said temperature sensor of said first passage and upon said desired blow-out temperature of said first passage.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/180,419Filed 12 Jan 1994
Priority: JP 5-00381013 Jan 1993
Granted: 28 Feb 1995
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B60H 1/00885
The components being temperature regulating devices: controlling the flow of heating or cooling liquid, e.g. valves or pumps
B60H 1/00735
Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices: control systems or circuits…
B60H 1/00792
Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g.…
B60H 1/00842
Damper doors, e.g. position control: the system comprising a plurality of damper doors; Air distribution between several outlets