RU102473U1 - MEANS FOR PROTECTING THE PRODUCT AGAINST ELECTROMAGNETIC RADIATION WHEN STEAMING IN A MICROWAVE - Google Patents

Abstract

 1. Means for protecting the product from electromagnetic radiation during cooking in a microwave oven, which is a three-dimensional hollow rigid mesh structure, the walls of which are impermeable to microwave electromagnetic radiation, but permeable to water, characterized in that the three-dimensional structure is made in the form of a domed hood. ! 2. The product protection agent according to claim 1, characterized in that the cap is perforated.

Description

The utility model relates to kitchen equipment and is intended for cooking in the microwave, in particular for cooking eggs and other products in shell and in the shell.

It is known that cooking eggs and other products in the shell and in the shell in a microwave oven without a means of protecting the product from electromagnetic radiation is impossible, because with direct exposure to microwave energy, they "explode". The instructions for microwave ovens contain a special warning in this regard.

Known means for protecting the product from electromagnetic radiation during cooking in a microwave oven, which is a container for a product equipped with a lid, and both the container and the lid are perforated, opaque to microwave radiation and permeable to water [patent RU 2252687, 05.27.2005].

The disadvantage of this tool for protecting the product from microwave radiation is the relative complexity of its design.

Another means is known for protecting the product from electromagnetic radiation during cooking in a microwave oven, also made in the form of a container for a product equipped with a lid [JP patent 2000107033, 04/18/2000]. Both the container and the lid are made of fine-mesh metal mesh and are opaque to microwave radiation, but permeable to water. The cover is made with a flat top and is equipped with a holder (handle). The product protection means in this case is only one of the components of the invention (egg cooker), which is also reflected in the claims of JP 2000107033.

The disadvantage of this tool for protecting the product from electromagnetic radiation is the relative complexity of its design. Another disadvantage is that the upper part of the lid for the product is made flat and is oriented horizontally, i.e. perpendicular to the outgoing primary microwave radiation. As a result of this, electromagnetic radiation reflected from the surface of the lid will be directed towards the microwave radiation generator (magnetron) and can; lead to disruption of his work (Sapunov G.S. Repair of microwave ovens. M: "Solon", 1998, 268 p.].

Means for protecting the product from microwave electromagnetic radiation according to patent JP 2000107033 is considered as a prototype for the claimed device.

The technical result of the utility model is to simplify the design, to protect the product from microwave radiation and to expand the range of technical equipment for cooking eggs and other products in the shell and shell in the microwave.

These technical results are achieved due to the fact that in the known means for protecting the product from electromagnetic radiation during cooking in a microwave oven, which is a three-dimensional hollow rigid mesh structure, the walls of which are impermeable to microwave electromagnetic radiation, but permeable to water, the three-dimensional hollow structure is made in domed dome. There is a handle at the top of the cap. The cap may be perforated.

The essence of the utility model is illustrated by drawings, where:

figure 1 presents a tool for protecting the product from electromagnetic radiation in the form of a domed cap;

figure 2 shows the location of the protective cap in a container of water when cooking eggs in a microwave oven.

The means for protecting the product from electromagnetic radiation during cooking in a microwave oven is a rigid three-dimensional hollow design in the form of a dome-shaped hood 1 (Figs. 1, 2), which simultaneously also serves as a container for the product to be cooked, for example, eggs 2 (Fig. 2). The cap is made of mesh or perforated from a solid conductive material, for example, stainless steel. In this case, the diameter of the perforations, as well as the length of each side in the mesh cells do not exceed 3 mm, which eliminates the penetration through the walls of the hood of microwave electromagnetic radiation, the frequency of which in microwave ovens is 2450 MHz. Bottom around the perimeter of the cap has a metal edging 3, which gives it additional rigidity. At the top of the cap is a handle 4, made, for example, of fluoroplastic. The execution of the domed dome helps to scatter the reflected microwave radiation from it to the sides and thereby prevents its possible damaging effect on the magnetron generating microwave electromagnetic radiation.

Cooking in a microwave oven using the proposed means to protect the product from microwave radiation is carried out in a transparent for microwave electromagnetic radiation tank 5 (figure 2) with a flat bottom, suitable for use in microwave ovens. When cooking, for example, eggs 2, they are laid at the bottom in the center of this container and then covered with a cap 1 from above. In this case, the cap around the entire perimeter of the fringing 3 rests on the bottom of the container 5 (figure 2). Then, the required amount of water is poured into the container 5, the egg cooker is placed in a microwave oven (not shown) and the required cooking mode is set. Capacity 5 may be covered with a lid (not shown) that is transparent to microwave electromagnetic radiation. However, practice has shown that cooking eggs in a microwave oven using the proposed egg cooker can be successfully carried out without covering the container 5 with a lid.

The primary heating of water in the space between the walls of the tank 5 and the cap 1 is carried out by microwave radiation coming from above, directly from the waveguide, and microwave radiation reflected from the inner walls of the working chamber of the furnace. The top and sides of the eggs are reliably protected from the direct action of microwave radiation by the shielding cap 1. The microwave radiation reflected from the bottom of the furnace is rather weak and cannot have any significant effect on the eggs under the hood 1. This our conclusion is based on the results of 85 successfully cooked eggs and sausages (in the shell) using the proposed device. One of the reasons for the low intensity and, consequently, low efficiency of the reflected microwave radiation acting on the product from below is the very close location of the hood 1 to the bottom of the microwave oven.

Thanks to convection, the water temperature in the zone of eggs 2 after a while reaches the required values. The process of boiling hard-boiled eggs with a power of microwave electromagnetic radiation of 450-600 watts takes about 10 minutes. At the end of cooking, the egg cooker is removed from the microwave, and water is drained from it, while holding cap 1 by the handle 4. After that, the cooked eggs 2 are cooled with cold water.

Similarly, in a microwave oven, it is possible to cook not only eggs, but also other products in the shell and shell.

As a container for water when cooking in a microwave oven using the proposed means for protecting the product from electromagnetic radiation, a variety of cookware designed for microwave ovens and a wide variety of commercially available can be used. Given this circumstance, there is no strict need to produce the proposed product protection product complete with a water tank, especially since many owners of microwave ovens already have dishes suitable for this purpose. Therefore, consumers in most cases can limit themselves to purchasing only the proposed means of protecting the product from electromagnetic radiation.

Means for protecting the product from electromagnetic radiation during cooking in a microwave oven, in contrast to the prototype device, are simpler arranged. Its production will contribute to expanding the range of technical equipment for cooking in the microwave oven eggs and other products in the shell and shell.

Claims (2)

1. Means for protecting the product from electromagnetic radiation during cooking in a microwave oven, which is a three-dimensional hollow rigid mesh structure, the walls of which are impermeable to microwave electromagnetic radiation, but permeable to water, characterized in that the three-dimensional structure is made in the form of a domed hood. 2. The product protection agent according to claim 1, characterized in that the cap is perforated.