DE19934187A1 - Device for heating and/or ventilating the cabin of car having heating/ventilation lines each comprising two separate lines for cold and warm air, connected with devices for generating air flows - Google Patents

Abstract

A device for heating and/or ventilating the cabin of a car comprises: devices (54-60) to generate flows of cold / cool and warm air; a number of air distribution lines which open out at different points (16-30) of the cabin, comprising a number of heating/ventilation lines plus a defrosting line which opens out into the front region of the dashboard, near the windshield; and a central control unit (14) to distribute the cold and warm air flows selectively in adjustable fashion to the defrosting line and/or the heating/ventilation lines. The heating/ventilation lines each comprise two distinctly separate lines for cold and warm air, each connected with the devices for generating flows of cold or cool or warm air. A number of individual independent control units are provided at different points of the cabin of which each is connected on the input side to the respective distinct line for cold and warm air. Each of the individual control units comprises its own devices for temperature control which are in a position to mix the flows of cold and warm air in adjustable fashion that are delivered from the lines.

Description

The invention relates to devices for heating and / or ventilating the interior of Motor vehicles.

Such devices include temperature control means in a conventional manner, to cold in manually or automatically with adjustable proportions or proportions To mix air streams and warm air streams provided by the device, as well as Distribution means to mix the cold air flows and warm air flows to different Distribute lines. The device can thus control multiple positions include such. B. for "defrosting", "ventilation", "foot heating", which allows air to direct currents to lines at different corresponding points of the drive inside the witness.

The devices for heating and / or ventilation that are still implemented today often include distinct temperature and distribution controls for each two front seats, but usually only a simple one with regard to the rear seats Provided line, formed as a branch from a front distribution line, the Rear passengers can only open or close them, e.g. B. by means of a closure flap to adjust the air flow to the rear seats.

Furthermore, the temperature of the air led to the rear seats is due to the global tax stungen or regulations determined, which are arranged in the front area, so that the rear passengers can only adjust the air emissions that are available to them, however not its temperature, which they usually cannot handle from their places.

An object of the invention is an improved device for heating and / or to propose ventilation that each occupant of the vehicle, and in particular the  Passengers in the rear or rear seats, allows the temperature and the distribution adjust or control according to your wishes, in order to create a specific "Mi kro comfort "in every zone (front right, front left, rear right, rear left) places, which is taken up by the respective passenger, being maximum comfort should be provided, especially in vehicles of the upper class and / or with a large In internal volume.

Furthermore, the invention has the task of individualizing the entirety of the comm to continue controls, the manageability of the visual functions, d. H. against Be hit and icing should be maintained by the driver.

In particular, the invention is applied to a device for heating and / or Ventilating the interior of a motor vehicle of known type, comprising: means to generate cold or chilled and warm air currents; a variety of air distribution cables that open at different points in the vehicle interior a variety of heating and / or ventilation lines, as well as a defrosting line, that flows into the front section of the dashboard, adjacent to the wind protective screen; and a central control unit to control in a controllable manner to selectively distribute the cold air and warm air flows to the defrost line and / or to the heating and / or ventilation or ventilation lines.

According to the invention, the heating and / or ventilation lines each comprise two distinct lines Lines for cold air and warm air, each connected to the means for generating the Flows in cold or cooled and warm air, with a variety of individually pending control units is provided, namely at different points of the In interior space, each of which is on the inlet side with the distinct lines for cold air and Warm air is connected, each of these distributed individual control units means for Control or adjustment of an appropriate temperature that is capable of locally in the case of controllable proportions or sections or proportions, the flows of cold air and Mix or mix hot air supplied by the appropriate ducts become.  

According to preferred embodiments of the invention:

• - Each of the individual control units also includes its own air distribution means, which in are able to control the mixed flows of cold air and to divide warm air on at least two lines that are connected to different lines Points open, especially at the height of the feet and halfway up, e.g. B. in Area of individual control unit;
• - The controls or regulations or settings of temperature and air distribution are mutually dependent, advantageously effected by the handle single button exercise;
• - In the latter case, the single button can be progressive between at least at least three positions are moved, including a first position for heating or warming the feet, a second position for heating and / or ventilation from both the feet and the room halfway up, and a third position, which represents a locking position;
• - Advantageously, the transition from the first to the second position increases the Air flow or the air flow that is output at half height with respect to each nem or that which is issued at the level of the feet, at the same time the proportion of warm air with respect to cold air in the air mixture output redu is adorned, the transition from the second to the third position the total throughput of the output mixed air flow is reduced, at the same time the proportion of warm air with respect to cold air in the mixed air output redu is decorated;
• - The central control unit includes a defrosting control, which is able in prioritize all or part of the upstream generated Air flow leading to the defrosting line, being complete at the same time or partially the lines for heating and / or ventilation are closed, that feeds or feeds the multitude of individual control units.

An exemplary embodiment of the invention will be described below with reference described on the accompanying drawings.

It should be noted that the same reference numbers are used in the different figures or number functionally corresponding elements.

Fig. 1 shows in a schematic way the different air outlets (ventilation slots and air vents) in the interior of a vehicle, as well as the under different control controls, which are arranged on the dashboard and near the rear seats available to the driver and passengers.

Fig. 2 shows in greater detail the dashboard, which is generally available to the driver.

Fig. 3 shows in greater detail an individual control box, which is each of the passengers.

Fig. 4 is a schematic sectional view of the device according to the invention, the circulation or circulation and distribution of the different air flows or flows in a configuration of distributed heating and / or ventilation.

Fig. 5 is a view corresponding to Fig. 4, but in a configuration "partially fogging or defrosting".

Fig. 6 is a view corresponding to Fig. 4, but in a configuration "maximum fogging and / or defrosting".

Figures 7-10 illustrate four possible control positions defined by the control of each of the individual control fields.

Fig. 1 shows in a schematic way the different air outlets of the vehicle interior (air vents at half height, which can be directed towards the face and ventilation slots or openings, which are directed towards the feet of the occupants) and different control or Adjustment controls, which are arranged on the dashboard 10 and at various other points in the vehicle interior, are available to the driver and the passengers.

The arrangement primarily comprises a plurality of individual control fields or panels 12 (e.g. a control field for each of the four occupants of the vehicle plus a central field). Each of these individual control fields 12 is assigned one or more air vents (middle 16 , laterally front 18 or laterally rear 20 ), which can be completely or partially closed by means of a corresponding lever 22 , 24 or 26 .

At the level of the feet, openings or slots for air outlet for the front 28 and rear 30 are also provided.

The arrangement also includes a central control panel 14 , which is reserved for the driver or can only be used by the driver and enables the so-called "view" functions to be controlled in a priority manner (fitting reduction / defrosting) and the autonomous function of the distributed ones enables or prohibits individual control fields, as will be described in detail later.

Fig. 2 illustrates in greater detail the central control panel 14.

This comprises a first control button 32 , which can take three positions 34 , 36 and 38 , a progressive transition from one position to another being possible:

• - The position 34 corresponds to a function "distributed heating and / or ventilation" and enables an autonomous function of the individual distributed control fields 12 ;
• - Position 36 corresponds to a function "partial fitting reduction / defrosting" and ensures air circulation on the windshield, without, however, significantly reducing the autonomy of the distributed individual control fields; in this case, the vehicle occupants retain sufficient autonomy with regard to the comfort setting and the driver can maintain air circulation at the height of the windshield, which reduces the risk of fogging;
• - The position 38 is a position "maximum fogging / defrosting" or "maximum fogging and / or defrosting", in which the entire air flow is directed to the nozzle, which is arranged at the height of the windshield, whereby it is the driver it is possible, in combination with the independent defrosting temperature control, to achieve the desired fogging reduction and / or maximum defrosting.

The field or panel 14 also includes:

• - An air temperature controller 40 , which only affects the defrosting air temperature;
• - A classic air flow control 42 , which influences the Turbinengeschwin speed of the engine ventilation group, for example; such as
• - A controller 44 for conditioned air, in and of itself classic.

Fig. 3 shows a distributed individual control field in greater detail and -paneel 12th

Each control panel 12 includes a single control button 46 capable of taking three successive positions 48 , 50 and 52 , allowing a progressive transition from one position to another:

• - Position 48 corresponds to a setting for heating or heating the feet or the footwell;
• an intermediate position between positions 48 and 50 corresponds to a moderate heating of both the feet via the ventilation slots and via the air vents, with a lower air temperature being present at the air vents;
• - position 50 corresponds to an air conditioning setting (fresh air or cooled air) from the air vents;
• - An intermediate position between position 50 and position 52 allows light to partially close the air vents; and
• - Position 52 allows the air vents to be completely closed, in which case the occupant has chosen to completely shut off all air circulation.

Fig. 4 shows schematically and in section the device according to the invention, where in the circulation and distribution of the different air flows or flows in a configuration "distributed heating / ventilation" or "distributed heating and / or ventilation" is shown.

The air flow or the air flow, coming from an air supply 54 , optionally acted upon by a motor fan arrangement 56 , is directed towards a radiator or heater by 58 , which is connected to the cooling circuit of the vehicle engine (and optionally with electrical heating resistors) and if that Vehicle is provided with an air conditioning system, towards an evaporator 60 .

On the outlet side of elements 58 and 60 , the air flow is divided into three distinct chambers, namely:

• a cold air chamber 62 comprising a plurality of outlet lines 64 , 66 , 68 leading to respective distributed individual control fields;
• - a defrosting chamber 70 which leads to a nozzle which is arranged at the level of the windshield; and
• - A warm air chamber 72 , which comprises a plurality of outlet lines 74 , 76 , 78 , which lead to respective distributed individual control fields.

There are just as many cold air lines 64 , 66 , 68 or warm air lines 74 , 76 , 78 as there are individual control fields. In the example shown, three cold air lines, three warm air lines and three individual control fields are provided.

The distribution device comprises several flaps:

• a central or main flap 80 for controlling the defrosting temperature 80 , which is set via the button 40 of the main field or main panel 14 , and
• - respective registers 82 , 84 and 86 , which meter the air flow in each of the respective chambers for cold air 62 , for defrosting 70 and for warm air 74 .

In the embodiment shown in FIG. 4, the register 84 of the defrosting chamber is closed, the registers 82 and 86 of the cold air chamber and the warm air chamber being open. This configuration corresponds to position 34 of button 32 ( Fig. 2).

The defrosting outlet is accordingly closed or blocked and the outlets for cold air and warm air, which are intended to supply the distributed distributors, are in a fully open position. The cold air and the warm air are conducted separately via distinct lines to each of the distributed individual fields, where the occupant can mix and distribute them as desired, in the manner described below with reference to FIG. 7 to 10 is explained.

In the configuration shown in FIG. 5, which corresponds to the position 36 of the control button 32 of the main control field ( FIG. 2), the registers 82 , 84 and 86 are partially open, the flap 80 being in a low or lower position ( according to the directions of the figures), that is to say that the fogging reduction chamber 70 is supplied or supplied with cold air.

This configuration makes it possible to maintain air circulation at the height of the windshield in order to limit the risks or the likelihood of a fitting, without substantially reducing the autonomy of the distributed fields or panels, so that the occupants of the vehicle are in this case, the possibility to individually adjust the temperature and the distribution according to your wishes or to regulate or control, as was previously given in the representation of Fig. 4 - whereby of course there is the possibility of a progressive transition between the to implement one and the other configuration by making all intermediate positions possible.

In the configuration shown in Fig. 6, which speaks the position 38 of the button 32 ( Fig. 2) ent, the outlet register for cold air and warm air 82 and 86 are closed, while the register 84 is open to reduce fogging.

Furthermore, the flap 80 was turned upwards so that the fogging reduction chamber 70 is supplied with air which was heated when and / or after the passage through the radiator 58 . However, if the driver only wants a large amount of fogging instead of maximum defrosting, he can leave the flap 80 in the position it was in previously, with the flap being controlled (above the button 40 of the central control panel 14 ) independently of that Registers 82 , 84 and 86 .

FIGS. 7 to 10 show the manner in which each distributed control field acts to change the setting of each occupant to get to his own comfort.

In the embodiment shown in particular, the device is designed with respect to a cylindrical adjusting distributor device 90 , the angular position being dependent on the setting position of the button 46 of the distributed individual field 12 ( FIG. 3).

The actuating distributor device comprises mobile sectors which make it possible to selectively close or connect four lines, namely:

• - A cold air supply line (Fr), such as. B. a line 66 (or 64 or 68 ), is connected to the cold air exhaust chamber 62 of the heating air conditioning system shown in Fig. 4;
• - A warm air supply line (Ch), such as. B. a line 76 (or 74 or 78 ), is connected to the hot air exhaust chamber 72 of the heating air conditioning system shown in FIG. 4;
• - An outlet line 94 (A) to supply air to an air vent or an air output, such as. B. 16 , 18 or 20 ( Fig. 1) to provide, for example, directed towards the face; and
• - An outlet line 92 (P) to air towards a ventilation slot or a Mün, such. B. at 28 or 30 ( Fig. 1) to output, arranged in the foot area (P) of the occupant.

The cylindrical actuating distributor device 90 can assume different positions, shown in FIGS. 7 to 10, in combination with a closure flap 96 to enable comfort control to be provided for every vehicle occupant.

In the position shown in Fig. 7 (corresponding to position 48 "heating the foot space" of the button 46 of Fig. 3), the cold air supply 66 and the outlet to the air outlet or the air vents 94 are blocked, while the warm air access 76 and the exit toward feet 92 are associated. This position thus corresponds to heating the feet or the footwell.

In the position shown in FIG. 8 (intermediate position between the positions 48 and 50 of the button 46 ), all the air inlets and inlets and outlets or outlets are partially designed to be permeable, which is a comfort setting for "moderate heating of both the feet and." via the air vents ", with a lower air temperature at the air vents because the line 94 is directly connected to the cold air supply 66 , the line 92 to the feet being in direct connection with the hot air supply 76 .

In the position shown in FIG. 9 (corresponding to the position 50 "Air conditioning via the air output devices or air vents" of the button 46 ), the cold air supply 66 and the output towards the air vents 94 are connected, while the hot air supply 76 and the outlet are locked or closed towards the feet 92 . In this case, the occupant has selected a comfort setting for air conditioning via the air vents.

In the position shown in FIG. 10 (corresponding to the position 52 "insulation" of the button 46 ), the hot air of the feed 76 is blocked by the actuating distributor device 90 and the cold air access 66 is closed by the flap 96 . In this case, the occupant chose that no air circulation takes place.

Claims (8)

1. A device for heating and / or ventilating the interior of a motor vehicle, comprising:

• Means ( 54 , 56 , 58 , 60 ) for generating flows of cold or cooled air (Fr) and warm air (Ch),
• - A variety of air distribution lines, which open at different points ( 16 , 18 , 20 , 28 , 30 ) of the vehicle interior, comprising a lot of heating / ventilation lines ( 62 , 72 ), and a defrosting line ( 70 ) in the front Area of the dashboard opens, namely adjacent to the windshield, and
• - A central control unit ( 14 ) to selectively distribute the cold air and warm air flows to the defrosting line and / or to the heating / ventilation lines in an adjustable manner,

characterized in that
the heating / ventilation lines each comprise two distinct or separate lines ( 64 , 74 ; 66 , 76 ; 68 , 78 ) for cold air and warm air, each with the means for generating currents in cold or cooled air and in warm air connected,
and that a plurality of individual, independent, distributed control units are provided at different points in the interior, each of which is connected on the input side to the respective distinct lines for cold air and warm air,
wherein each of the individual control units has its own means for temperature control, which are able to proportionally mix the flows of cold air and warm air locally, which are supplied by the respective lines, in an adjustable manner. 2. Apparatus according to claim 1, characterized in that each of the individual control units further comprises its own means for air distribution, which are able to distribute the mixed flows of cold air and warm air on at least two lines in an adjustable manner, the th at different points ( 18 , 28 ; 20 , 30 ) open, in particular at the level of the feet and halfway with respect to the area of the individual control unit. 3. Device according to claim 2, characterized in that the controls for temperature and air distribution are interdependent Controls are. 4. Apparatus according to claim 2 or 3, characterized in that the controls of the temperature and the air distribution by means of handling an individual button ( 46 ) are effected. 5. The device according to claim 4, characterized in that the single button ( 46 ) is progressively displaceable between at least three positions ( 48 , 50 , 52 ), comprising:

• a first position ( 48 ) for heating the footwell,
• - A second position ( 50 ) for heating / ventilation of both the feet or the footwell and halfway up, and
• - A third position ( 52 ) in which there is a closure.

6. The device according to claim 5, characterized in that the transition from the first ( 48 ) to the second ( 50 ) position increases the air flow or the air flow which opens at half height with respect to that which opens on the Ni veau of the feet, while at the same time the proportion of warm air with respect to the proportion of cold air in the mixed air output is reduced. 7. Apparatus according to claim 5 or 6, characterized in that the transition from the second position ( 50 ) to the third position ( 52 ) reduces the total throughput of air flow mixture supplied, with the proportion of warm air with respect to the proportion of cold air in the mixed delivered air is reduced. 8. Device according to one of claims 1 to 7, characterized in that the central control unit ( 14 ) comprises a defrosting control ( 36 , 38 ) which is capable, in a priority manner, of all or part of the air flow, upstream generated to direct towards the defrosting line, at the same time completely or partially blocking the heating / ventilation lines that feed the large number of individual control units.