RU2111131C1 - Car heating-and-ventilating device - Google Patents

Abstract

FIELD: transport engineering; ventilation, heating and air conditioning systems for passenger cars. SUBSTANCE: heating-and-ventilating system is connected with car saloon through hole in front board. Air distributor unit rigidly secured on instrument panel is connected to front board hole from side of saloon. Shutters rotating on axles and connected to each other by means of tie-rod are installed inside air distributor unit. Shutters are operated by one lever through tie-rod. Air duct is connected to upper channel of air distributor unit. Along this duct air is delivered to deflectors arranged along windshield glass and directing air to windshield glass visibility zone and to side nozzles delivering air to rear view mirrors visibility zone. Air duct connected to lower channel of air distributor unit directs air along its channels to zone of feet of driver and front seat passenger, and along channel and air ducts to zone of feet of rear seat passengers. Air ducts coupled with middle channel of air distributor unit directs air to central and side deflectors of saloon ventilating system. EFFECT: improved efficiency of device, increased repairability and possibility of modification of units and entire system, enhanced safety of driver and passengers when car is running. 2 cl, 6 dwg

Description

 The invention relates to the field of transport engineering, namely, ventilation, heating and air conditioning in the cabs of vehicles, such as cars.

 Known heating and ventilation device of the passenger compartment (a.s. USSR N 1136971, class B 60 H 1/00, prototype) containing a chamber with a fan and a heat exchanger installed in it, an air distributor installed at the outlet of the fan housing, including a nozzle to the nozzles for blowing the windshield, a nozzle to the central deflector of the passenger compartment, an air duct for supplying air to the legs of the driver and front passenger, and two interconnected rotary shutters, a shutter control assembly.

 A disadvantage of the known technical solution is the lack of the ability to control the air distribution by one control element, since in order to supply air to the leg area of the rear passengers, it is necessary to control another damper, which reduces the efficiency of the system and the safety of movement, since the driver needs additional time to control it.

 The disadvantages also include the fact that there are two separate channels for defrosting and blowing windshields and side windows, increasing aerodynamic drag, complicating the design, increasing the weight and material consumption of the car as a whole.

 The combination of the function of blowing side windows and interior ventilation through side deflectors reduces security, as it requires additional time for their reconfiguration from one mode to another.

 The objective of the invention is aimed at improving the efficiency of the device by rational distribution of air; expanding the ability to repair and modify blocks and units of the entire system, due to the separation into separate elements; increasing the safety of the driver and passengers during the movement of the car, due to the minimum time, distracting the driver from the functions of direct control of the car and monitoring the traffic situation to control the distribution of air in the heating and ventilation system.

 To solve this problem, the following design of a heating and ventilation device is proposed, comprising a heating and ventilation unit located in the engine compartment and connected to the vehicle compartment through a special hole in the front panel, an air distribution unit with two interconnected dampers installed in the vehicle compartment and connected via the same hole in the front panel with a heating and ventilation installation, a heating and ventilation control unit installation and air distributor, air duct for heating and blowing windshields and side windows, air duct for air supply to the areas of the legs of the driver and passengers, front and rear, air duct for central and side air vents of the passenger compartment, two movable interconnected shutters are installed in the distributor unit, the leading the flap is located between the air duct in the foot area and the ventilation duct, and the driven flap is between the air duct for blowing the wind and side windows and the channel of the driving flap.

 Comparison of the claimed technical solution with the prior art in scientific, technical and patent documentation as of the priority date in the main and related sections shows that the set of essential features of the claimed solution was not known - therefore, it meets the patentability condition of “novelty”.

 The analysis of known technical solutions in the art showed that the proposed device has features that are not available in the known technical solutions, and their use in the claimed combination of features makes it possible to obtain a new technical effect, therefore, the proposed technical solution has an inventive step compared to the existing level technicians.

 The proposed technical solution is industrially applicable, because can be manufactured industrially, efficiently, feasibly and reproducibly, therefore, meets the patentability condition "industrial applicability".

In FIG. 1 shows a schematic diagram of a device and its installation in a passenger compartment;
in FIG. 2 is a plan view of FIG. 1;
in FIG. 3 is a section AA of FIG. 2;
in FIG. 4, FIG. 5, FIG. 6 - position of the dampers of the air distribution unit.

 The heating and ventilation device of the vehicle interior, comprising the heating and ventilation unit 1, located in the engine compartment 2 and connected to the vehicle interior 3 through an opening 4 in the front panel 5. From the passenger compartment 3, an air distribution unit 6 is adjacent to the opening 4 in the front panel 5 , which is rigidly fixed to the instrument panel 7. Inside the air distributor block 6, shutters 9.10 are interconnected by means of traction 8 and rotate on axes 11, 12. The shutters are driven from of the bottom arm 13, for example, through the link 14. An air duct 16 is connected to the upper channel 15 of the air distributor block 6 through which air is supplied to the deflectors along the windshield 17, which supplies air to the field of view 18 of the windshield and to side nozzles 19, 20 that supply air to visibility zone 21 rear-view mirrors 22 on the side windows 22 of the side doors 24. An air duct 26 is connected to the lower channel 25 of the air distribution unit 6, supplying air through its channels 27, 28, 29, 30 to the foot area of the driver 31 and front passenger 32 and channel 33, 34 and duct m 35, 36 in the rear passenger leg regions 37, 38. The middle channel 39 is adjacent the diffuser unit 6 a duct 40 supplying air to the central 41 and side 42, 43 interior ventilation vents.

 The device operates as follows: the air outside the vehicle is supplied to a heating and ventilation installation, in which it can be heated to the required temperature by a radiator through which coolant circulates from the engine cooling system. The treated air is supplied through an opening in the front flap into the air distribution unit 6, by which, depending on the positions of the interconnected shutters 9, 10, is distributed as follows.

 At the positions indicated in FIG. 6, air is supplied through the ducts to the areas of the legs of the driver, front and rear passengers, which provides the greatest efficiency for heating the passenger, in the intermediate positions of the flaps indicated in FIG. 6, in addition, air is supplied to the air ducts for blowing and heating the windshields and side windows in the heating mode of the passenger compartment.

 At the positions of the shutters indicated in FIG. 5, all air is supplied to the air duct for blowing and heating the windshield and side windows, which ensures maximum efficiency of this mode. Alternatively, at intermediate positions of the dampers, air is supplied to both channels at once.

 When the flaps are shown in FIG. 4, all air is supplied to an air duct supplying air to the central and side air vents of the passenger compartment.

 The design of the air distributor unit, the dimensions of the dampers and the intermediate draft, the angles of rotation of the dampers are selected in such a way that for one rotation of the leading damper 9, the driven damper 10 makes two turns, and accordingly, the two extreme positions of the damper 9 correspond to one position of the driven damper 10.

Thus, the installation of the air distributor unit, with interconnected shutters, and air ducts, provides modes with maximum efficiency:
- interior heating;
- blowing and heating the windshields;
- interior ventilation in the summer,
and also, in the intermediate positions of the dampers, due to the design features of the air distributor unit, the air supply at the same time:
- into the air ducts for blowing and heating the windshield and side windows and heating the passenger compartment;
- into the ventilation ducts of the cabin and blowing the windshields and side windows to prevent fogging of the latter;
- to all channels at the same time.

 The drive to the dampers is carried out from one element, which greatly simplifies the control of the heating and ventilation device of the vehicle and the drive to work in the required mode.

Claims (2)

 1. The heating and ventilation device of the vehicle interior, comprising a heating and ventilation unit with a heat exchanger and a fan, an air distributor including interconnected dampers, heating and blowing air ducts of the wind and side windows, air supply to the area of the legs of the driver and front and rear passengers, supply air to the central and side air vents of the passenger compartment and the damper control unit, characterized in that the air distributor is made by a single unit located in the passenger compartment vehicle and communicated through an opening in the front panel with a heating and ventilation installation, while the interconnected flaps are driven and leading, and the leading flap is connected to the control unit of the flaps and installed in the air duct to the area of the legs of the driver and front and rear passengers, made a single with the possibility of blocking the ventilation duct of the passenger compartment of the vehicle with the position of the slider in the air duct for blowing and heating the windshields and side windows, corresponding m its overlap.  2. The device according to claim 1, characterized in that the slider is made with the possibility of adopting intermediate positions corresponding to the simultaneous opening of air ducts for heating and blowing the windshields and side windows and the passenger compartment when moving the shutter.

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