RU2737982C1 - Spiral ventilator - Google Patents

Abstract

FIELD: ventilation and air conditioning.

SUBSTANCE: invention relates to ventilator-making. Spiral ventilator includes housing, stator and rotor components of electric motor, working body installed in housing with possibility of rotation. Working body has the shape of a cone, and inside the working body there is at least one hole located along the conical spiral.

EFFECT: invention is aimed at creation of injury-free fan with directed air supply in one direction or with maximum coverage of air volume during operation in other direction.

5 cl, 7 dwg

Description

The invention relates to fans and can be used as a safe fan, as well as in cases where it is necessary to create a stable and directed air flow.

From the prior art patent JPH 03160194 is known, which describes a fan with a rotary arrangement of blades in which there is no central drive, and the blades are equipped with elements of the rotor of the electric motor.

Differences from the stated solution are that:

- The spiral fan has no blades;

- The air in the spiral fan passes inside the spiral channels inside the working fluid;

- The working fluid of the spiral fan does not have any blades that can cause injury.

Known patent CN 100504074 describing a fan in which the blades in the working medium are spiral.

Differences from the stated solution are that:

- The spiral fan has no blades;

- The air in the spiral fan passes inside the spiral channels inside the working fluid;

- The working fluid of the spiral fan does not have any blades that can cause injury.

Known patent KR 20040050375, describing a spiral fan, in which the working fluid has the shape of a cylindrical spiral, while, as can be seen from the description and images, the working fluid has the shape of an elongated spiral blade placed in a cylindrical housing.

The differences between the stated solution are that:

- The spiral fan does not have a blade, but has holes located inside the working fluid in a spiral;

- The holes in the spiral fan are arranged in the form of a conical spiral;

- The working body of the spiral fan is a cone, inside which there are working spiral holes, while the surface of the cone is mostly smooth, without protruding traumatic parts.

The technical result of the claimed invention consists in the development of a safety fan with a directed air supply in one direction, or with a maximum coverage of the air volume when operating in the other direction.

The technical result is achieved by the fact that in a spiral fan containing a housing, elements of a stator and a rotor of an electric motor, the working body installed in the housing with the possibility of rotation, according to the invention, the working body has the shape of a cone, and inside the working body there is at least one opening located along conical spiral. The working body can be additionally equipped with grips and guides and installed with the possibility of rotation both clockwise and counterclockwise. And the holes can be located at different distances from the center, forming several rows of a spiral, located in a circle around the center of the working fluid.

Particular cases of manufacturing a structure are:

- Changing the parameters of spiral holes in terms of changing the pitch of the spiral, the size of the holes, the angle of inclination, etc .;

- Application of a number of holes and other structural elements in the amount of one or more;

- Application of air entrapments;

- The location of the spiral holes at different distances from the center, which makes it possible to form several rows of spirals in the working medium.

Brief Description of Drawings:

FIG. 1 - Rotary version of the fan, view from the side of the maximum diameter of the working fluid;

FIG. 2 - Rotary fan, view from the side of the minimum diameter of the working fluid;

FIG. 3 - Rotary fan sectional view;

FIG. 4 - Conical working body, 3D view;

FIG. 5 - Sectional conical working fluid;

FIG. 6 - Sectional conical working fluid with spiral holes at different distances from the center;

FIG. 7 - Conical working fluid with reverse air flow.

The spiral fan images show the following elements:

1. Fan casing with stand

2. Stator elements located in the housing

3. Elements of the rotor located on the working medium

4. Conical working body

5. Capture

6. Guide

7. Spiral holes

8. Direction of air flow

9. Schematic mounting on the motor axis.

A design feature of the described invention is the working fluid (4) of the fan, made in the form of a cone. Moreover, the working body has predominantly smooth edges, which prevents injury when a part of the human body enters the working body area of action (4). The use of the cone and the spiral holes (7) located inside it makes it possible to abandon the classic fan operation scheme in which the air flow (8) does not have a clear direction.

Thus, the holes (7) located in the form of a conical spiral make it possible to provide a directed air flow (8) under pressure when the air exits from the side of the minimum diameter of the working fluid (4), which is shown in Fig. 5.

And with the reverse rotation of the working fluid (4), which is shown in Fig. 7, the air flow (8) will come out from the side of the maximum diameter of the working fluid (4), which will allow the air flow to spread as far as possible and avoid excessive pressure of the air flow (8). This version of the use of a spiral fan can be applicable, for example, in air conditioning systems for better cooling (or heating) the air in a room with a decrease in the likelihood of hypothermia for a person who is near such a system.

In general, the spiral fan works as follows:

An electric current is supplied to the stator elements (2) (and, depending on the version of the electric motor, to the rotor elements (3)), which causes the rotor elements (3) and the fixed working medium (4) to rotate in one direction or another (clockwise or counterclockwise) clockwise).

Rotation affects the air inside the spiral holes (7) (similar to the blades in a classic fan, which act on the air in the zone of their work), which leads to the movement of air flows (8) from one edge of the working fluid (4) to the other, depending on direction of rotation. In this case, air is sucked in from, for example, the side of the maximum diameter of the working fluid (4) and exits from the side of the minimum diameter of the working fluid, which provides additional pressure and directionality of the air at the exit. Or vice versa, air enters the working fluid (4) from the side of the minimum diameter and exits from the side of the maximum diameter, which ensures a decrease in the pressure of the air flows (8) and the maximum spread of air flows (8).

In order to increase the efficiency of the structure, grippers (5) or guides (6) can be additionally used. Grips

(5) are located on the working medium (4) from the side of maximum diameter and are designed for better air entrapment inside the working medium (4) into the spiral holes (7) during rotation. And the guides (6) are designed to stabilize the air flow (8) when it comes out from the side of the minimum diameter of the working fluid (4). In this case, the guides can have a recess extending into the depth of the working fluid (4), as indicated in FIG. 6, designed to collect air flows (8) coming out of different spiral holes (7).

Grips (5) and guides (6) are optional, not mandatory structural elements.

Features of the invention:

1. Execution type of the fan motor. Depending on the modification, it is possible to manufacture a spiral fan of three types:

1) With the location of the electric motor outside the working fluid. In this case, the working fluid (4) is additionally equipped with a mount on the motor shaft (9), which is schematically shown in Fig. 6. In this case, the elements of the stator (2) and rotor (3) are absent on the working medium (4), and the electric motor does not enter the working medium (4).

2) With the location of the electric motor in the central part of the working fluid. In this case, the elements of the stator (2) and the elements of the rotor (3) are located in the central part of the working fluid (4), in a cone which is formed by the inner edges of the working fluid (4).

3) With the location of the rotor elements (3) on the surface of the working fluid (4), which is formed by the outer edges of the working fluid (4). This embodiment is shown in FIGS. 1, fig. 2, fig. 3 and looks the most effective, since in the zone of inlet-outlet of air flows (8) with this design there will be no additional elements like an electric motor or fasteners.

2. The location of the spiral holes (7) at different distances from the center of the working fluid (4) allows you to increase the number of spiral holes (7) and form several rows of spirals located in a circle around the center of the working fluid (4), which in turn increases the contact area with air and increases the efficiency of the fan. This modification is shown in FIG. 6. In this case, each spiral hole (7) can have its own grip (5) and a common guide (6) with a recess for collecting air flows from different spiral holes (7).

3. The working body (4) has a smooth surface and does not have protruding dangerous parts, except for cases when it is equipped with grippers (5), which eliminates the possibility of injury to a person if a part of the human body gets into the working area of the working body (4).

The claimed result is achieved by using a working fluid with a smooth surface and without protruding elements or parts, while directed air supply is achieved by collecting air flows to the center of the working fluid and into the guide (if any), and the maximum coverage of the air volume is achieved by reverse rotation of the working fluid. body at the exit of air flows from the side of the maximum diameter of the working fluid.

Claims (5)

1. Spiral fan, which includes a housing, elements of the stator and rotor of the electric motor, a working fluid installed in the housing with the possibility of rotation, characterized in that the working fluid has the shape of a cone, and inside the working fluid there is at least one hole located along a conical spirals. 2. A spiral fan according to claim 1, characterized in that the working fluid is additionally equipped with grippers and guides. 3. Spiral fan according to claim 1, characterized in that the working fluid is installed with the possibility of rotation both clockwise and counterclockwise. 4. A spiral fan according to claim 1, characterized in that the holes are located at different distances from the center, forming several rows of spirals located in a circle around the center of the working fluid. 5. A spiral fan according to claim 1, characterized in that the working fluid is additionally equipped with an attachment to the axis of the electric motor.

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