Cabinet for storing sterile medical instruments, as well as dishes and cutlery

Description of structural elements


The cabinet body Fig.1 (7) is assembled from a steel sheet with a thickness of ____ mm, by means of spot welding and painted with white powder enamel. Inside the steel case there is a plastic casing repeating the shape of the case. Stops for installing shelves are implemented in the cladding by thermal molding Fig. 1 (6). On the back wall in the upper part of the cabinet there is a ventilation hole Fig. 3 (1) with a mesh filter necessary for air intake. In the lower part of the cabinet, a fan is installed Fig. 3 (3) to remove air from the working chamber. Also, a power cord with a plug is removed from the upper face of the rear wall Fig. 3(2) On the upper part of the working chamber there is an LED lamp for the illumination of the working chamber. 8 UV lamps are installed on the side walls of the working chamber Fig. 1(3), as well as a plastic box for laying wires to UV lamps and a fan. Cabinet doors Fig. 1(5) are made of aluminum profile, in which a double-glazed unit of two darkened glasses is installed. In the opening of the cabinet there is a dividing partition made of steel. Inside the partition there is an electromechanical lock actuator Fig. 1(4) door locks, there are matching lock hinges on the doors. On the upper side of the cabinet there is a display with buttons Fig. 1 (1;2) for setting the exposure time. On the right wall in the upper part of the cabinet there is a switch made in the form of a swing Fig. 2 (4).

Specifications

Supply voltage – 220-230V

Current frequency - 50-60Hz

Power – 100W

Principle of operation


After connecting the cabinet to the 220V 50Hz supply network, the display backlight turns on, as well as the LED backlight of the camera and the installation goes into standby mode. After loading the medical instrument or dishes, you need to make sure that the camera doors are tightly closed. Then you need to use the "+" "-" keys to set the exposure time required for storing medical instruments or dishes and cutlery. After setting the exposure time, press the "start" key. The timer will start counting down the set exposure time, the doors will be locked, the UV lamps and the fan for air circulation will turn on. The LED backlight will go out. At the end of the exposure, the UV lamps and the fan turn off, the doors will be unlocked, the LED backlight of the camera will turn on. The installation will go into standby mode.

Scope of application

The cabinet can be used in medical institutions of various profiles, dental offices for storing sterile instruments. It is also possible to use the cabinet in fast food chains, restaurants, catering establishments, educational and preschool institutions for storing clean dishes and cutlery.


Top view with the lid removed

1. Power supply

2. Electromagnetic relays

3. UV lamp start-up devices

4. Switch

5. Electronics control unit with display and control buttons

Fig.2 Schematic diagram

1. AC/DC - power supply 220-12V 5A 2. Rel. 1-5 - power part control relay 3. MCRel.M - unit including a microcontroller, buttons, display, as well as a relay switching module. 4. M1 - electromechanical door lock 5. M2 - air exhaust fan from the working chamber 6. B1 - start-regulating device for UV lamps 7. EL 1\8 - UV lamps 8. EL 9- working camera illumination lamp.