KR-20260066839-A - VEHICLE AIR CONDITIONING DEVICE

KR20260066839AKR 20260066839 AKR20260066839 AKR 20260066839AKR-20260066839-A

Abstract

The present invention relates to an air conditioning system for a vehicle. An air conditioning system for a vehicle according to one embodiment of the present invention comprises an air conditioning case, a PTC heater located inside the air conditioning case, a partition wall partitioning the rear area of the PTC heater, a first door unit located on one side of the partition wall based on the partition wall, and a second door unit located adjacent to the first door unit and on the other side of the partition wall. The PTC heater comprises a first heater zone located in an area facing the top of the first door unit, a second heater zone located in an area facing the bottom of the first door unit, a third heater zone located in an area facing the top of the second door unit, and a fourth heater zone located in an area facing the bottom of the second door unit. The system is characterized by comprising a control unit that controls the opening amount of the first door unit and the second door unit to track the set temperature of individual areas, and independently drives the first heater zone to the fourth heater zone in correspondence with the opening amount.

Inventors

김명준
연동원
김동협
안병국
정원준
백남진

Assignees

현대자동차주식회사
기아 주식회사
주식회사 두원공조

Dates

Publication Date: 20260512
Application Date: 20241105

Claims (16)

Air conditioning case; A PTC heater located inside the above air conditioning case; A partition wall dividing the rear area of the above-mentioned PTC heater; A first door unit located on one side of the bulkhead based on the above bulkhead; A second door unit adjacent to the first door unit and located on the other side of the partition wall; and The above PTC heater comprises: a first heater zone located in an area facing the top of the first door unit; a second heater zone located in an area facing the bottom of the first door unit; a third heater zone located in an area facing the top of the second door unit; and a fourth heater zone located in an area facing the bottom of the second door unit. A vehicle air conditioning system comprising: a control unit that controls the opening amount of the first door unit and the second door unit to track the set temperature of individual zones, and independently drives the first heater zone to the fourth heater zone in correspondence with the opening amount.
In Article 1, The above-mentioned first door unit is, A first temp door located adjacent to the upper side of one side of the above bulkhead; and A vehicle air conditioning device comprising: a first sub-door located at the bottom of the first temp door and adjacent to the bottom of one side of the bulkhead.
In Article 2, The above second door unit is, A second temp door located adjacent to the upper side of the other side of the above bulkhead; and A vehicle air conditioning device comprising: a second sub-door located at the bottom of the second temp door and adjacent to the bottom of the other side of the bulkhead.
In Paragraph 3, A first fluid path located facing the first heater zone and fluidly connected to one end of the front seat; A second fluid path located facing the above-mentioned second heater zone and fluidly connected to one end of the rear seat; A third fluid path located facing the above-mentioned third heater zone and fluidly connected to the other end of the front seat; A vehicle air conditioning system comprising: a fourth fluid path located facing the above-mentioned fourth heater zone and fluidly connected to the other end of the rear seat.
In Paragraph 4, The above control unit When the first temp door is opened, the first flow path is fluidly connected to the first heat zone, and when the first temp door is closed, the first flow path is blocked. A vehicle air conditioning system in which, when the first sub-door is opened, the second flow path is fluidly connected to the second heat zone, and when the first sub-door is closed, the second flow path is blocked.
In Article 5, The above control unit When the second temp door is opened, the third flow path is fluidly connected to the third heat zone, and when the second temp door is closed, the third flow path is blocked. A vehicle air conditioning system in which, when the second sub-door is opened, the fourth Euro is fluidly connected to the fourth heat zone, and when the second sub-door is closed, the fourth Euro is blocked.
In Article 6, The above control unit A vehicle air conditioning system that calculates a required heat load based on the difference between the actual temperature and the set temperature corresponding to each zone, and varies the size of at least one of the first to fourth heater zones in response to the required heat load.
In Article 7, The above control unit is, A vehicle air conditioning system that drives the first to fourth heater zones to generate different outputs in the first to fourth heater zones in response to different required heat loads.
In Article 8, The above control unit is, A vehicle air conditioning system that moves the first temp door to close the first flow path when the indoor temperature exceeds the set temperature on the front side of the seat, and moves the first temp door to open the first flow path when the indoor temperature is below the set temperature on the front side of the seat.
In Article 9, The above control unit is, A vehicle air conditioning system that moves the first sub-door to open the second flow path when the indoor temperature is below the set temperature on the rear side, and moves the first sub-door to close the second flow path when the indoor temperature exceeds the set temperature on the rear side.
In Article 10, The above control unit is, A vehicle air conditioning system that varies the areas of the first heater zone and the second heater zone in response to the heat load requirements of the front seat and the rear seat, respectively, and controls the output of the first heater zone and the second heater zone in response to the different heat load requirements.
In Article 8, The above control unit is, A vehicle air conditioning system that moves the second temp door to close the third flow path when the indoor temperature exceeds the set temperature on the other end of the front seat, and moves the second temp door to open the third flow path when the indoor temperature is below the set temperature on the other end of the front seat.
In Article 12, The above control unit is, A vehicle air conditioning system that moves the second sub-door to open the fourth flow path when the indoor temperature is below the set temperature on the other end of the rear seat, and moves the second sub-door to close the fourth flow path when the indoor temperature exceeds the set temperature on the other end of the rear seat.
In Article 13, The above control unit A vehicle air conditioning system that varies the areas of the third heater zone and the fourth heater zone in response to the heat load requirements of the front and rear seats, respectively, and controls the output of the third heater zone and the fourth heater zone in response to the different heat load requirements.
In Article 8, The above control unit is, In cases where air is discharged only through a single seat, A vehicle air conditioning system that moves the first temp door to open the first Euro and moves the first sub-door to close the second Euro.
In Article 15, The above control unit If the indoor temperature is below the set temperature on the front side of the seating area, A vehicle air conditioning system that varies the size of the areas of the first heater zone and the second heater zone in response to the required heat load of the above-mentioned front seat, controls the output of the first heater zone, and cuts off the power to the second heater zone.

Description

Vehicle Air Conditioning Device The present invention relates to an interior air conditioning system for a vehicle, and more specifically, to a system that provides an independent temperature control function through multiple control zones and optimizes the output characteristics of a PTC heater according to the variable operation of the air conditioning device to maintain the indoor air temperature efficiently and uniformly. The vehicle's air conditioning system is a key element that provides a comfortable environment for passengers by controlling the temperature and airflow inside the vehicle. The present invention supports a 4-zone control function that includes not only the driver and passenger seats but also the rear seat area through the improvement of the vehicle's air conditioning system, and enables temperature control tailored to each zone by variably adjusting the output amount and output area of the PTC heater. Conventional vehicle climate control systems adopt a method of compartmentalizing airflow using horizontal and vertical partitions fixed behind the PTC heater to provide the necessary heating to each zone. This method enables relatively simple and stable temperature control, offering the advantage of independent temperature regulation for each seating area. However, conventional fixed partition systems have a problem in that heat pickup occurs in unused zones among the four zones. When a specific zone is in the OFF state, heat transferred from other zones unintentionally flows into the OFF zone, causing unnecessary heat accumulation. This leads to reduced system efficiency and temperature imbalance between zones, making optimal temperature control difficult. To solve such problems, the present invention enables independent heating control for each zone by variably adjusting the partition structure at the rear of the PTC heater. The output amount and output area of the heater are automatically adjusted according to the needs of each zone, thereby optimizing the temperature balance inside the vehicle and reducing unnecessary heat loss while efficiently providing the necessary heating to each zone. FIG. 1 is a side view of a vehicle air conditioning system as an embodiment of the present invention. FIG. 2 is an enlarged view of the rear end of the PTC as an embodiment of the present invention. FIG. 3a illustrates an operating mechanism in which air from the rear of the PTC is discharged to the rear seat as an embodiment of the present invention. FIG. 3b illustrates the output of a PTC heater when air from the rear of the PTC is discharged to the rear seat, as an embodiment of the present invention. FIG. 4a illustrates an operating mechanism in which air from the rear of the PTC is discharged to the front and rear seats as an embodiment of the present invention. FIG. 4b illustrates the output of a PTC heater when air from the rear of the PTC is discharged to the front and rear seats, as an embodiment of the present invention. FIG. 5a illustrates an operating mechanism in which air from the rear of the PTC is discharged to the front as an embodiment of the present invention. FIG. 5b illustrates the output of a PTC heater when air from the rear end of the PTC is discharged to the front end, as an embodiment of the present invention. FIG. 6a illustrates an operating mechanism in which air is discharged into a first flow path when the air is discharged only through one end of the stone as an embodiment of the present invention. FIG. 6a illustrates the output of a PTC heater when air is discharged through the first flow path in the case where air is discharged only through one end of the front stone as an embodiment of the present invention. FIG. 6c illustrates an operating mechanism in which the first fluid path is partially opened in drive-only mode as an embodiment of the present invention. FIG. 6d illustrates the output of a PTC heater when the first fluid path is partially opened in drive-only mode, as an embodiment of the present invention. Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited to the embodiments below. These embodiments are provided to more completely explain the present invention to those with average knowledge in the art. Additionally, terms such as "...part," "...unit," etc., as described in the specification refer to a unit that processes at least two functions or operations, and this may be implemented in hardware, software, or a combination of hardware and software. Furthermore, the terms used in the specification are used merely to describe specific embodiments and are not intended to limit the embodiments. Singular expressions include plural expressions unless the context clearly indicates otherwise. Furthermore, throughout the specification, w