RU7730U1 - AIR VENTING DEVICE - Google Patents

Abstract

A device for ventilating air, comprising a housing mounted on a rack with a base, and an axial fan and an apparatus for changing the temperature of the air flow located in it, characterized in that the housing is cylindrical in rectangular cross section and mounted for rotation in the horizontal plane, and the adaptation is thermoelectric modules located on opposite inner side surfaces of the housing and each paired with a pair of flat-fin radiators, each n of which is installed inside, and the other is outside the case, and the fins of the radiators are located in mutually perpendicular directions.

Description

DEVICE FOR VENTILATION OF AIR.

The utility model relates to the field of instrumentation and can be used in the manufacture of domestic fans.

The closest in technical essence and the achieved result to the claimed utility model is a device for air ventilation (household fan), comprising a housing mounted on a rack with a base, and an axial fan and a device for changing the temperature of the air flow placed therein, moreover, as the latter An illuminating lamp with a reflector having an original design is installed.

see A.S. USSR N 1495517, MKI F 04 D 25/06, SEYAWL. 07/01/87, N 4273061, publ. 07/23/89, 6.27

The known device for venting air allows you to heat the air flow, however, has a limited scope due to the inability to cool the environment.

The objective of this utility model is to simplify the design while expanding the functionality.

The problem is solved in that in the known device for ventilating air, comprising a housing mounted on a rack with a base, an axial fan and a device for

IPC F 04 D 25/06 H 01 L 35/28

changes in air flow temperature, ACCORDING TO THE USEFUL MODEL, the casing is made of cylindrical rectangular section and mounted for rotation in the horizontal plane, and the device is thermoelectric modules placed on opposite inner side surfaces of the casing and paired with a pair of flat-finned radiators, one of which is installed inside and the other on the outside of the case, and the radiator fins are located in mutually perpendicular directions.

The proposed design of the utility model is simple and reliable, it extends the functionality of domestic fans due to both heating and cooling of ventilated air.

Analysis of the known technical solutions allows us to conclude that the claimed utility model is not known from the level of the technology being studied and, therefore, meets the criterion of novelty.

The possibility of manufacturing the proposed device for air ventilation at domestic enterprises of instrumentation from commercially available structural elements and devices allows us to conclude that it meets the criterion of industrial applicability.

The figures schematically depict the inventive Device for ventilation of air:

in FIG. 1 is a side view of FIG. 2 - front view

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Designations in the figures:

1- building

2-axis fan

3- rack

4- base

5- thermoelectric modules

6- external flat fin radiators

7- internal flat fin radiators

8- conversion and regulation unit with a toggle switch

9- power cord.

The inventive device for air ventilation consists of a plastic rack 3 with a base 4, on which a cylindrical body 1 of rectangular cross-section is mounted with the possibility of rotation in a horizontal plane. Inside the housing 1 there is a device for changing the temperature of the air flow, as well as an axial fan 2 installed in the end part. The device is a thermoelectric module 5, located on opposite side surfaces, each of which is paired with a pair of flat-finned radiators 6 and 7. Moreover, one of the radiators 6 is installed outside, and the other 7 inside the case. The fins of the radiators 6 and 7 are mutually perpendicular. The conversion and control unit with a toggle switch 8 is installed on the base of the rack and is designed to control air flow and switch voltage from 220 to 12 V, as well as the heat-cold operating mode.

A device for venting air works as follows. EXAMPLE 1. Airflow cooling.

Using cord 9, the device was plugged into a power supply network. The toggle switch of the conversion and regulation unit 8 was set to operate, for example, cold. At the same time, the device for air ventilation cooled the air flow passing through it. When the axial fan 2 was rotated, its blades captured air and directed it into the housing 1 between thermoelectric modules 5 through the gaps of the internal radiators 7, the ribs of which are parallel to the direction of the air flow. In this case, thermoelectric modules 5 operating in the cold mode cooled the air flow by contacting the air with their cold junctions coupled to internal radiators 7. Hot junctions of the thermoelectric modules were cooled convectively by external air through the external radiators 6 connected to them, the ribs of which are perpendicular to the direction of movement airflow inside the device.

EXAMPLE 2. Heating of the air flow.

When the toggle switch 8 was switched to the mode, the heat-cold junctions of the thermoelectric modules became hot, and the air flow passing through the housing 1 was heated.

g #.

- 4 fans, taken as a prototype, see A.S. USSR N 1495517 MKI F 04 D 25/06, publ. 07/23/89, 6.27 provides the following technical and socially useful benefits:

-simplification of the design;

-extension of functionality, which consists in both heating and cooling the air flow;

-increasing energy efficiency by reducing heat loss;

-creation of comfortable conditions;

-the ability to use the device not only in domestic premises, but also in the interiors of vehicles with a voltage of 12 V.

- 5 FORMULA

Claims (1)

A device for ventilating air, comprising a housing mounted on a rack with a base, and an axial fan and an apparatus for changing the temperature of the air flow located in it, characterized in that the housing is cylindrical in rectangular cross section and mounted for rotation in the horizontal plane, and the adaptation is thermoelectric modules located on opposite inner side surfaces of the housing and each paired with a pair of flat-fin radiators, each n of which is installed inside, and the other is outside the case, and the fins of the radiators are located in mutually perpendicular directions.