RU182001U1 - ELECTRIC DRYER HOUSEHOLD - Google Patents

Abstract

This utility model relates to the technique of drying food products and can find application in electrical devices for drying fruits, berries and vegetables. The technical result consists in increasing the productivity of drying products. The household electric dryer contains a base closed with openings and made with holes, in which an engine and a control unit and an impeller and heating elements located above the engine are placed under the first cover, and sieves with openings in the central part are located on the waist above the base under the second cover with an opening, each sieve is equipped with coaxially located two rims and codirectional annular protrusions with slots, with one protrusion made along the perimeter of the smaller rim And others - on the perimeter of holes in the central portion of the lattice, and annular protrusions vypolnennymy on the opposite side with respect to the plane of the sieve holes around the perimeter in the center of the sieve.

Description

This utility model relates to the technique of drying food products and can find application in electrical devices for drying fruits, berries and vegetables, mainly in domestic conditions.

A device is known for drying berries, vegetables and fruits, comprising a cylindrical body vertically mounted on legs with a bottom, an electric heater and an axial fan located inside the cylindrical body above the bottom and electrically connected to a control unit mounted on the body, while the bottom surface swept by the fan blades is made perforated, and trays for placement of products to be dried, an electric heater is placed above the fan relative to the bottom of the case, the fan motor and electric the heater is rigidly fixed to the crosspiece, attached to the body, the food trays are made in the form of coarse sieves mounted on top of each other above the electric heater, a temperature regulator is installed inside the body volume, electrically connected to the control unit, and the fan blades are placed in a cylindrical ring rigidly attached to the bottom of the housing (patent RU 104021 U1, filing date 10/27/2010, published on 05/10/2011).

A disadvantage of the known device for drying is the low drying performance associated with the uneven distribution of heated air flows, and, as a result, the uneven drying of the product in the drying device necessitates sorting of the product and its drying.

A household electric dryer is known, comprising a base with holes, an engine, an impeller located in the discharge chamber, heating elements, belt-mounted pallets and a top cover with an outlet channel, characterized in that there is an annular gap between the outer and inner walls of each pallet, the cross-sectional area of the discharge chamber decreases from the center to the periphery, and the outlet of the discharge chamber communicates with an annular gap (patent RU 149711 U1, filing date 03/14/2014, published on 01/20/2015).

For example, electric household dryers for fruits and vegetables SUPRA DFS-311 and Polaris PFD 0605D are also known, which include a housing with an electronic control element installed in it with the possibility of setting the drying time and temperature, as well as a heating element and a fan with a vertical nozzle, This is equipped with a drying unit in the form of belt-mounted removable pallets and lids (https://www.supra.ru/catalog/sushilki_ dlya_fruktov_i_ovoshchey_arkhiv / sushilka_dlya_ovoshchey_i_fruktov_supra_dfs_311 / and https://www-pol -i-fruktov / polaris-pfd-0605d /? sphrase_id = 662923).

A common disadvantage of known electric household dryers is the low drying performance due to stagnation of air in the drying unit, especially in places remote from the fan and nozzle.

As the closest technical solution, an electric household dryer for vegetables and fruits Ezidri Ultra FD1000 was selected, which contains a housing (base) with a mechanical control element installed with the possibility of setting the drying time and temperature, as well as a heating element, a fan with a vertical nozzle, a drying unit is installed on the body in the form of removable pallets lying on top of each other and a lid with an opening. The pallets are made in the form of sieves and have holes in the central part, and each sieve is equipped with two rims of different diameters arranged coaxially and with co-directional ring protrusions. Some protrusions are made in rims of a smaller diameter, and others along the perimeter of the holes in the central part of the pallets (http://www.hydraflow.co.nz/Ezidri.aspx).

The disadvantage of the closest analogue, like well-known household electric dryers, is the low drying performance caused by the ineffective distribution of heat air flows in the dryer, in particular stagnation and unstable laminar air flow in the area of the pallets, which ultimately increases the processing time of the products.

A technical problem, the solution of which is provided by the claimed utility model, is the creation of a new design of a household electric dryer that provides effective distribution of air flows, expressed in continuous rotation of air in the drying zone, continuous removal of moisture from the product and in the absence of air stagnation.

The technical result obtained by using the inventive utility model is to increase the productivity of drying products.

The technical result is achieved by the fact that the household electric dryer contains a base closed with openings and made with holes, in which an engine and a control unit are located under the first cover and impellers and heating elements located above the engine, while sieves are located on the base under the second cover with an aperture having holes in the Central part, each sieve is equipped with coaxially located two rims and codirectional ring protrusions with slots, and one the protrusions are made around the perimeter of the smaller rims, and the others along the perimeter of the holes in the central part of the sieves, according to a utility model, each sieve is provided with an annular protrusion made from the side opposite to the sieve plane along the perimeter of the hole in the central part of the sieve.

Moreover, according to a utility model, the height of large rims can be at least 44 mm.

Moreover, according to the utility model, the height of the annular protrusions made from the sides opposite to the plane of the sieves can be at least 6 mm.

The present utility model is illustrated by drawings (Fig. 1-3), an example of a household electric dryer on which, however, is not the only possible, but clearly demonstrate the possibility of achieving the claimed technical result. Moreover, the above examples of the claimed utility model do not limit the possibilities of its implementation, not beyond the scope of the utility model, and are not exhaustive.

In FIG. 1 shows a frontal section of the inventive electric dryer, FIG. Figures 2 and 3 show images of callouts A and B, respectively.

With reference to FIG. 1-3 are indicated:

1 - the base of the electric dryer;

2 - legs of the electric dryer;

3 - the first cover of the base of the electric dryer;

4 - electric motor;

5 - heating element;

6 - control unit;

7 - safety element;

8 - impeller;

9 - sieves;

10 - the second cover of the electric dryer;

11 - holes of the base 1;

12 - hole cover 10;

13 - holes sieve 9;

14 - the central channel of the electric dryer;

15 - holes cover 3 for air;

16 - sieve 9;

17 - sieve 9;

18 - peripheral through channel of the sieves 9;

19 - the protrusions of the rim 17;

20 - holes for air inlet in the sieve 9;

21 - the protrusions of the holes 13 without slots;

22 - holes in the sieves 9 for air outlet;

23 - the protrusions of the holes 13 with slots;

b is the height of the annular protrusions 21; C is the height of the outlet openings 22;

d is the height of the inlets 20; H is the height of the rim 16.

According to a utility model, a household electric dryer contains a base 1, which can be performed on legs 2 (Fig. 1). Legs 2 can be equipped with sound absorbing dampers (not shown). In the upper part of the base 1 of the electric dryer, a first cover 3 is installed, which covers the base 1. At the base 1 is an electric motor 4. A heating element 5 and a safety element 7 are attached to the cover 3 of the base 1. A control unit 6 is mounted in the base 1, which can located, for example, in the lateral part of the base 1. At the base 1, an impeller 8 is placed above the engine 4, which serves to pump heated air into the drying zone. For air intake from the atmosphere into the electric dryer, holes 11 are provided, which are located in the base 1 (Fig. 1).

On the base 1 on top of each other, forming tiers, sieves 9 are installed, which are covered from above with a second lid 10 (Fig. 1). To exit the air from the dryer, a hole 12 is provided in the cover 10 of the electric dryer. Each sieve 9 has a hole 13 in the central part, which, when the sieves are installed in tiers, forms a central channel 14 (Fig. 1, 3). For air circulation in the cover 3 of the base 1 holes 15 are made, which can be located under the Central channel 14 (Fig. 1, 3).

On the peripheral side of the sieve 9 are equipped with rims 16 and 17 located coaxially one after another with decreasing diameter from the first rim 16 to the second rim 17 (Fig. 1, 2). An annular gap, which is formed between the rims 16 and 17 of the sieves 9, with a tiered arrangement of the latter, forms a peripheral through channel 18 (Fig. 2). In the second rim 17 of a smaller diameter, protrusions 19 are made with slots, forming holes 20 for the entry of heated air into the sieve 9 (Fig. 2). The protrusions 19 are circular, i.e. made around the perimeter of the rim 17, and the holes 20 have a height d (Fig. 2). Along the perimeter of the Central hole 13 of each sieve 9 are performed annular protrusions 21 of height b, and the protrusions 19 and 21 are made from the opposite sides relative to the plane of the sieve 9 (Fig. 1, 3). To exit the air from the sieve 9 into the central channel 14, openings 22 of height c are made, which are formed by protrusions 23 with slots located around the perimeter of the openings 13, the protrusions 19 and 23 being made co-directed. The slots of the protrusions 19 and 23 can be made vertical. The first rims 16 are made with a height H, the value of which can be at least 44 mm, and a height b can be at least 6 mm.

The inventive utility model works as follows.

The required number of sieves 9 is installed on the base 1. Through the holes 11 of the base 1, the air enters the dryer and is heated by the heating element 5. Using the impeller 8, air is pumped into the drying zone through the peripheral channel 18. Then, the heated air stream enters through each channel 18 into the sieve 9 through the hole 20, transforming from a laminar flow to a turbulent flow. The presence of annular protrusions 21 around the perimeter of the holes 13 and protrusions 19 of the second rim 17 provides a turbulent nature of the movement of air flows in the dryer. The turbulent flow ensures continuous air rotation, effectively removes moisture from the products and does not stagnate in sieves, thereby reducing drying time and increasing the performance of the electric dryer as a whole. The turbulent air stream carries out the drying of the products in the sieves 9, then leaves the sieves 9 through the opening 22 in the central channel 14 and then enters the hole 12 of the cover 10 of the electric dryer and is discharged into the atmosphere.

Claims (3)

1. A household electric dryer, comprising a base closed with openings and made with holes, in which an engine and a control unit are located under the first cover, and an impeller and heating elements located above the engine, with sieves having openings in the belt above the base under the second cover with an opening the central part, each sieve equipped with coaxially located two rims and co-directional annular protrusions with slots, with one protrusion made along the perimeter of smaller odov, and others - on the perimeter of the openings in the central portion of the lattice, characterized in that each screen is provided with an annular protrusion formed on the opposite side with respect to the plane of the sieve holes around the perimeter in the center of the sieve. 2. The household electric dryer according to claim 1, characterized in that the height of the large rims is at least 44 mm. 3. The household electric dryer according to claim 1, characterized in that the height of the annular protrusions made from sides opposite to the plane of the sieves is made of at least 6 mm.

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