RU211223U1 - VEHICLE INTERIOR HEATER FAN - Google Patents

Abstract

The utility model relates to the field of transport engineering, namely to ventilation, interior heating and creating comfortable conditions in vehicles, for example, in cars.

The technical result of the utility model is to expand the functionality of the device, which is achieved due to the fact that the fan of the car interior heater, containing the fan housing, inside which there is a fan with a radial impeller, in the fan housing there are three holes for supplying air to the passenger compartment, while the hole for air supply to the windshield is located on the top cover of the fan; air to the driver's and passenger's feet. 2 w.p. f-ly, 12 ill.

Description

The utility model relates to the field of transport engineering, namely to ventilation, interior heating and creating comfortable conditions in vehicles, for example, in cars [B60H 1/34].

As you know, in the VAZ2107, VAZ2105, VAZ2104 cars, a fan with low efficiency and high noise was used in the car interior heating system. Because of this, when operating in difficult climatic conditions, in particular at negative temperatures, the comfort of using the vehicle is significantly reduced. Heaters of the old type do not allow for simultaneous and separate blowing of several zones, in particular, the zones of the driver's and passenger's footwells. To meet this need of car owners, the claimed technical solution proposes a modification of the lower case of the heater with a horizontal rotor with air supply simultaneously to five zones of the passenger compartment and separate adjustment of air flows to the foot wells of the driver and passenger.

Known from the prior art is a DEVICE FOR BLOWING THE WINDSHIELD AND SIDE GLASSES OF THE VEHICLE SALON [RU 2251491, 05/10/2005], which is located in the instrument panel and contains a heater connected to the inlet for supplying air to the guiding channel of the device for distributing air to the side blowing nozzles glass and windshield blower nozzle. What is new is that the device contains an air pressure distribution chamber having a cross section decreasing from the maximum in the center of the blowing zone to the minimum towards the edges of the zone, and communicating with the guide channel, which is made with a constant cross section along the entire length of the windshield blowing zone, and containing channels , formed by ribs, to direct air to blow the side windows. The technical result is the possibility of providing a uniform air flow in terms of speed and volume, increasing the efficiency of blowing the visibility areas, removing fogging and defrosting the windshield and side windows of the vehicle.

The disadvantages of this analogue are:

low ease of use, due to the fact that the analogue does not provide for the possibility of automatically adjusting the intensity of the air flow for blowing the windshield and side windows of the vehicle interior. Thus, the driver of the vehicle has to adjust the intensity of the air flow, manually, through the dashboard of the car;

uneven heating zone of the windshield of the car, due to the design features of the device, namely the location of the nozzle of the device at the bottom of the windshield. Thus, when blowing the windshield, in conditions when it is iced over, first of all, its lower part will be thawed;

high structural complexity due to the presence of an additional structural element, namely, an air pressure distribution chamber.

Also known from the prior art is a DEVICE FOR DISTRIBUTING AND SUPPLYING AIR TO THE CAR INTERIOR [RU2251492, 10.05.2005], which contains a deflector housing located on the instrument panel, connected by means of an air duct to the air conditioning unit on one side and two outlet channels on the other, which are located under angle to each other, and on which nozzles with horizontal parallel ribs are placed. The lower outlet channel has a damper with a control element. On the upper nozzle, the ribs are fixed, and the lower one contains movably mounted blades connected to each other by a rod with the possibility of rotation by means of an adjusting element. What is new is that the upper outlet duct has a separate air supply duct connected to the air conditioner heater. On the lower nozzle, the horizontal ribs are made movable, with the possibility of rotation in the vertical direction by means of a regulating element located on the central blade. The damper is made in the form of a flat circle with stiffening ribs passing through the center and is adjacent to the lower outlet channel by means of a seal placed along the contour of the damper and having a circular cross section. The technical result is the possibility of combining in one housing the interior ventilation nozzle and the side window heating nozzle in the visibility zone, simplifying the design and improving the operational properties of the object.

The disadvantages of this analogue are:

low ease of use, due to the fact that the air conditioning system does not provide for the function of changing the level of airflow intensity depending on the current temperature in the car;

the inability to supply air to the footwell of the driver, front passenger and rear passengers, which, in the presence of difficult climatic conditions, such as low temperatures, can lead to discomfort for the driver and passengers, and in extreme cases, contribute to frostbite of the legs.

Also known from the prior art is a CAR HEATER FAN [RU202212, publ.: 11/06/2021], containing a fan housing, inside of which there are fastening elements, a fan, a fan cover and an opening for air supply to the passenger compartment with a deflector, characterized in that inside the housing fan with a radial impeller is located, also in the fan housing there are three holes for supplying air to the passenger compartment with deflectors, while one hole is located on the top cover of the fan, the second and third holes are located on the side walls of the fan case.

The disadvantage of the analogue is its limited functionality, namely, the lack of the possibility of supplying heated air in the area of the front side mirrors.

The closest in technical essence is the VAZ 2107 SALON HEATER [https://avtocity365.ru/ustrojstvo-i-ekspluatatsiya-avtomobilya/pechka-vaz-2107/], where the car interior heater fan, containing the fan housing, inside which the fan is located, with four holes for supplying air to the passenger compartment, while the hole for supplying air to the windshield is located on the top cover of the fan, two holes for supplying air to the side windows are located on the side walls of the fan housing, in the lower part of the case there is a hole for supplying air to the legs driver and passenger.

The main technical problem of the prototype is its low efficiency and limited functionality due to the inability to separately supply heated air to the driver's and passenger's footwell.

The purpose of the utility model is to eliminate the shortcomings of the prototype.

The technical result is to increase the efficiency and expand the functionality of the device.

The specified technical result is achieved due to the fact that the heater fan of the car interior, containing a fan housing, inside which there is a fan with a radial impeller, in the fan housing there are three holes for supplying air to the passenger compartment, while the hole for supplying air to the windshield is located on the top fan cover, two holes for supplying air to the side windows are located on the side walls of the fan housing, characterized in that in the lower panel of the fan housing in the side walls under the holes for supplying air to the side windows, holes are made to supply air to the driver's and passenger's feet.

In particular, the holes for supplying air to the driver's and passenger's legs are connected through air ducts to dampers, which provide regulation of the volume of air supplied to the driver's and passenger's legs.

In particular, the dampers are equipped with deflectors that provide regulation of the direction of the supplied air to the feet of the driver and passenger.

Brief description of the drawings

In FIG. 1 shows a general view of the car interior heater.

In FIG. 2 shows a general view of the car interior heater fan.

In FIG. 3 shows a general view of a fan with a radial impeller.

In FIG. 4 shows a diagram of the air ducts of the car interior heater.

In FIG. 5 schematically shows the top cover of the fan casing.

In FIG. 6 schematically shows the left side of the bottom panel of the fan case.

In FIG. 7 schematically shows the right side of the bottom panel of the fan case.

In FIG. 8-12 show an embodiment of a car interior fan.

The drawings indicate: 1 - air intake box, 2 - air intake cover, 3 - radiator, 4 - fan, 5 - bottom panel of the fan housing, 6 - upper cover of the fan housing, 7 - fan with a radial impeller, 8 - air supply hole for windshield, 9 - hole for supplying air to the side glass, 10 - hole for supplying air to the driver's footwell, 11 - hole for supplying air to the passenger's footwell, 12 - adapter to the windshield, 13 - windshield damper, 14 - windshield air duct, 15 - side window damper, 16 - side window air duct, 17 - damper control unit, 18 - air duct to the driver's feet, 19 - air duct to the passenger's feet, 20 - air duct damper to the driver's feet, 21 - air duct damper to the feet passenger.

Implementation of the utility model

The car interior heater contains an air intake box 1, which is connected in series through the air intake cover 2 with a radiator 2, at the outlet of which there is a fan 4, consisting of the bottom panel of the fan housing 5, on top of which the upper cover of the fan housing 6 is fixed, and a fan with a radial impeller 7, placed inside the bottom panel of the fan housing 5. The bottom panel of the fan housing 5 is fastened to the inner walls of the heater of the passenger compartment of the car by fastening elements due to the presence of stampings on the bottom panel of the fan housing 5 (not shown in the figures). In the upper cover of the fan housing 6 there is an opening for supplying air to the windshield 8. In one of the side walls of the lower panel of the fan housing 5 there is an opening for supplying air to the side glass 9, from the bottom of which there is an opening for supplying air to the driver's foot well 10. on the other side wall of the lower panel of the fan housing 5 there is an opening for supplying air to the side glass 9, from the bottom of which there is an opening for supplying air to the passenger footwell 11. through holes for air supply. Under the adapter to the windshield 12 in the hole for supplying air to the windshield 8, there is a side glass damper 13, made with the possibility of partially or completely blocking the hole for supplying air to the windshield 8. The adapter to the windshield 12 is connected to the inlet of the windshield air duct 14. At the outlets of the openings for supplying air to the side windows 9, dampers of the side glass 15 are mounted, made with the possibility of partially or completely blocking the openings for supplying air to the side windows 9. The openings for supplying air to the side windows 9 are connected to the inlets of the air ducts of the side windows 16. glass 13 and side window shutters 15 are connected to each other and to the damper control unit 17 by means of tensioner belts (not shown in the figures). The damper control unit 17 is located on the outside of the car interior heater, in the cabin, next to the dashboard. The damper control unit 17 is configured to partially or completely open/close the windshield damper 13 and the side glass dampers 15 by mechanical action on the adjustment of the damper control unit 17 and the associated tensioner belts. The hole for air supply to the driver's footwell 10 is connected to the air duct to the driver's feet 18, and the air supply hole to the passenger's footwell 11 is connected to the air duct to the passenger's feet 19. At the outlet of the air duct to the driver's feet 18, an air duct damper to the driver's feet 20 is mounted, made with the possibility of partial or complete blocking of the air duct to the legs of the driver 18 by means of external mechanical action. At the exit of the air duct to the legs of the passenger 19, a damper of the air duct to the legs of the passenger 21 is mounted, which is made with the possibility of completely blocking the air duct to the legs of the passenger 19 by means of external mechanical action.

In various embodiments of the car interior heater fan, the air duct damper to the driver's feet 20 can be equipped with a deflector to adjust the direction of the air supplied.

In various embodiments of the car interior heater fan, the air duct damper to the passenger's feet 21 can be equipped with a deflector to adjust the direction of the supplied air.

In various embodiments of the car interior heater fan, instead of the air duct to the driver's feet 18, the cover of the air duct damper to the driver's feet 20 can be located.

In various embodiments of the car interior heater fan, instead of the air duct to the passenger's feet 19, the cover of the air duct damper to the passenger's feet 21 can be located.

The car interior heater fan functions as follows, due to the discharge created by the fan with a radial impeller 6, air from the street enters the passenger compartment through the air intake box 1, and, bypassing the air intake cover 2, enters the radiator 3, where its temperature changes, according to the heater settings on car interior dashboard.

After the temperature change, the air enters the fan 4, where the fan with a radial impeller 7 amplifies and distributes the incoming air flow through the air supply holes 8-11. Thus, the fan with radial impeller 7 provides air distribution in the following directions:

direction 1: with the windshield damper 13 open or partially open, heated air is supplied through the air supply hole to the windshield 8 and further through the windshield duct 14 to the windshield of the car;

directions 2-3: with open or partially open side window shutters 15, heated air is supplied through the air supply holes to the side windows 9 and further, through the side window ducts 16 to the front side windows of the car;

direction 4: when the damper of the air duct is open or partially open, heated air is supplied to the driver's legs 20 through the air supply hole into the driver's foot well 10 and further through the air duct to the driver's legs 18 into the driver's foot well;

direction 5: with the damper of the air duct open, heated air is supplied to the passenger's legs 21 through the air supply hole into the passenger's footwell 11 and then through the air duct to the passenger's legs 19 into the passenger's footwell.

Thus, the claimed technical solution provides the supply of heated air in five directions, while the intensity of the air supply and the control of the windshield damper 13 and the side glass dampers 15 are realized by mechanical action on the control elements of the damper control unit 17 through the drive cables.

The technical result of the utility model - expanding the functionality of the device, is achieved due to the fact that in one of the side walls of the lower panel of the fan housing 5 there is an opening for supplying air to the footwell of the driver 10. In the other side wall of the lower panel of the fan housing 5 there is an opening for supplying air into the footwell of the passenger 11. The hole for air supply to the footwell of the driver 10 is connected to the air duct to the driver's feet 18, and the air supply to the footwell of the passenger 11 is connected to the air duct to the passenger's feet 19. At the outlet of the air duct to the driver's feet 18 is mounted damper of the air duct to the feet of the driver 20, made with the possibility of partial or complete blocking of the air duct to the feet of the driver 18 by means of external mechanical action. At the exit of the air duct to the legs of the passenger 19, a damper of the air duct to the legs of the passenger 21 is mounted, which is made with the possibility of completely blocking the air duct to the legs of the passenger 19 by means of external mechanical action. Thus, the claimed technical solution provides simultaneous supply of heated air in five directions with the possibility of separately adjusting the intensity of the air flow in the fourth and fifth directions, which is a significant expansion of the functionality of the prototype, which leads to an increase in the quality of blowing the car interior, an increase in comfort and ease of use, especially in cold conditions.

In 2021, the applicant produced an industrial design of the claimed technical solution, the operation of which confirmed the claimed technical result.

An example of achieving a technical result

The claimed technical result was achieved on the example of the modernization of the car interior heater fan for the VAZ2104, VAZ2105 and VAZ2107 models (shown in Fig. 8-12). The patent-pending device is supplied as a complete set of equipment for replacement. To carry out the modernization, first of all, the factory heater fan is dismantled from the car, then the side window dampers 15, the windshield damper 13, tensioner cables are installed in the modernized heater fan of the car interior, the tensioner cable fasteners are installed in the adapter on the windshield 12, the adapter is installed on windshield 12 into the hole for supplying air to the side glass 9 and the windshield air duct 14, install the tensioner cable on the windshield in the regular place of the damper control unit 17, adjust the height of the radiator holders 3, connect the electrical wires, install the interior heater fan in the design car seat, using brackets, install the side window air duct 16 on the passenger side and install the corresponding side window damper 15, install a new mode intensity switch, instead of the old damper control unit 17, fix the outside 3-salon recirculation filter between the radiator housing 3 and the heater from the side of the radiator inlets 3 using double-sided adhesive tape, connect a 4-speed harness, connect the electrics back and assemble the plastic elements of the interior.

The claimed device can be manufactured at the enterprise and is a single product consisting of mechanically connected functional elements, namely the bottom panel of the fan housing 5 with air supply holes, the upper cover of the fan housing 6, the fan with a radial impeller 7 and air duct elements with an air duct damper at the feet passenger 21 and the air duct damper at the driver's feet 20.

Claims (3)

1. The heater fan of the car interior, containing a fan housing, inside which there is a fan with a radial impeller, in the fan housing there are three holes for supplying air to the passenger compartment, while the air supply hole for the windshield is located on the top cover of the fan, two holes for supplying air supply to the side windows are located on the side walls of the fan housing, characterized in that in the lower panel of the fan housing in the side walls under the holes for supplying air to the side windows, holes are made to supply air to the driver's and passenger's legs. 2. The fan according to claim 1, characterized in that the holes for supplying air to the legs of the driver and passenger through the air ducts are connected to dampers that provide regulation of the volume of air supplied to the legs of the driver and passenger. 3. The fan according to claim 2, characterized in that the flaps are equipped with deflectors that provide regulation of the direction of the supplied air to the legs of the driver and passenger.

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