RU40100U1 - COOKER FREEZER LOW TEMPERATURE - Google Patents

Abstract

The proposed utility model relates to the field of refrigeration equipment and is intended for long-term storage of frozen components and samples. The essence of the utility model is that a low temperature chest freezer containing a foam cabinet is proposed, the upper frame of which is made of plastic and is solid, a door with two gaskets and removable heat-insulating covers made of expanded polystyrene.

Description

The proposed utility model relates to the field of refrigeration equipment and is intended for long-term storage of frozen components and samples.

Known freezer chest, consisting of a foamed outer and inner cabinets, a foamed door with a seal located on top of the cabinet, as well as a wire-tube condenser mounted on the rear wall of the cabinet, includes a control panel, compressor, roller bearings.

The disadvantages of this chest freezer are: high thermal conductivity in the place of contact with the upper frame of the door cabinet due to the use of the upper frame of the cabinet is not integral design. The frame consists of four parts of the profile, each part of which is cut off at the edges at 45 degrees and all parts are interconnected by places of slices. At the junction of the profiles there are gaps, as well as insufficient flatness of the contact surface of the seal, which results in a decrease in the quality of storage of frozen products, a decrease in their shelf life, a decrease in the reliability and useful life of the freezer, and also increases energy consumption (see the instruction manual p. 8 p. 5.4).

The purpose of the proposed technical solution is to expand operational capabilities, increase the reliability and service life of the low-temperature chest freezer. This goal is achieved due to the fact that the upper frame of the cabinet is solid and is a sectional view of three horizontal, located at different levels, planes connected to each other plane, and the angle of inclination is 40-50 degrees, and the door has two seals, the outer one seals along the upper plane of the frame, and the inner one b - on the middle plane, and removable heat-insulating covers are made of expanded polystyrene.

The proposed utility model is illustrated in figure 1, figure 2, figure 3.

Figure 1 - General view of the chest freezer

Figure 2 is a top view

Figure 3 is a side view

Figure 4 - sectional view of the seal

The low temperature chest freezer (Fig. 1) consists of a foamed cabinet 1 which includes the upper frame 2, which is a sectional profile of three horizontal planes located at different levels (Fig. 4), the upper plane (11) and the middle plane ( 12) are interconnected by an inclined (16) and a vertical plane (18), from a door (3) mounted on top of the cabinet with hinges 4, with a lock (10) and two seals - an external (13) and an internal (14), of removable heat-insulating covers 7 mounted on the lower plane (15) of the compressor sator unit 8 (figure 3), as well as a microprocessor electronic control unit 9.

Freezer chest-low temperature works as follows. During operation of the chest freezer, due to the large difference in air temperature inside the cabinet and outside it, heat flows occur. The one-piece frame has good flatness in the corners and eliminates gaps between the frame and the seal, and the use of a second inner seal adjacent to the other plane of the frame creates an additional air gap between the outer and inner seals, the inclined wall (16) of the frame and the inclined wall (17) of the door and the angle of inclination is 40-50 degrees, since with deviations of the actual dimensions of the walls of the frame and the door, deviations of the gap in this case are the smallest, and we use e removable heat-insulating covers when opening the door during the operation of the chest freezer also reduces heat inflows - the exchange of warm and cold air is reduced, which allows to expand operational capabilities, increase the reliability and service life of the chest freezer, increase the shelf life of frozen components by obtaining lower temperatures inside the cabinet.

The use in the proposed freezer of a one-piece frame, two seals and removable heat-insulating covers reduces air gaps, which can significantly reduce heat inflows into the cabinet, as well as reduce the load on the condensing unit and, accordingly, increase the reliability and service life of the freezer, making it possible to obtain more low temperatures inside the cabinet, which positively affects the quality of food storage and, accordingly, extends the operating possible five-a chest freezer.

The proposed technical solution is industrially applicable, since it can be manufactured industrially, efficiently, feasibly and reproducibly, meets the patentability condition "industrial applicability".

Claims (1)

A low-temperature chest freezer containing a foamed cabinet with a frame, a door with a lock and insulation mounted on top of the cabinet on hinges, heat-insulating covers, a condensing unit, as well as a microprocessor electronic control unit, characterized in that the upper frame of the cabinet is integral and represents the section is a profile of three horizontal, located at different levels, planes connected by an inclined plane, and the angle of inclination is 40-50 °, and the door has two seals, the outer plotnyaet on the upper plane of the frame, and an inner seal - at the midplane, a removable insulating cover made of expanded polystyrene.