SU1693331A1 - Device for defrosting biomaterials in containers - Google Patents

Abstract

The invention relates to refrigeration technology and can be used when defrosting biomaterials. The goal is to increase the safety of biomaterials during defrosting. Containers 9 with biomaterials fixed on lid 2 are lowered into container 1 with heat carrier. When this electromagnetic locking device 3 locks the cover 2 in the closed position. By means of the crank 13, the clutch 16 of the drive and the holder, a swinging movement is communicated to the containers 9 with the biomaterials. After the time required to defrost the biomaterials, the relay generates a signal to turn off the electric motor 15 and open the lid 2, together with which the containers 9 with the biomaterials are removed from the coolant tank 1. 4 il.

Description

 Rig. one

The invention relates to a refrigeration equipment, namely, devices for defrosting biomaterials, and can be used when defrosting biomaterials that have been pre-preserved by the method of deep cooling.

The aim of the invention is to increase the safety of biomaterials during defrosting,

FIG. 1 shows a device for defrosting biomaterials, a general sectional view; in fig. 2 is a circuit for switching on and off an electric motor and an electromagnetic locking device; in fig. 3 shows the node I in FIG. one; in fig. 4 is a view A of FIG. 3

The device contains a container 1 for a heat carrier (not shown) with a hinged cover 2, an electromagnetic locking device 3, a heating element 4, a temperature sensor 5 connected via cable 6 to the control unit 7, the holder El of containers 9 for biomaterials.

The containers 9 are mounted on the holder 8 using the cassette 10.

The device is equipped with a mechanism for swinging containers 9, including a drive 11 placed in the bracket 12 rotatably, and a turning movement into a swinging unit comprising a crank 13 fixed on the shaft 14 of the electric motor 15 controlled by the control unit 7.

The actuator 11 has a coupling 16 cooperating with the crank 13 and is rigidly connected to the holder 8 of the containers 9.

The holder 8 of the containers 9 is mounted on the shaft 17 of the actuator 11, and the bracket 12 is rigidly connected to the cover 2.

The control unit 7 includes a time relay 18 with contacts 19 and 20 and a magnetically controlled contact (reed switch) 21 sequentially connected to an electrical circuit.

A lid 2 with a magnet 22 cooperating with a magnetically controlled contact (reed switch) mounted in the upper part of the tank 1 and having a latch 23 of the electromagnetic locking device 3 is held in a normally open state by means of an adjustable spring 24.

The device works as follows.

Containers 9 with biomaterials mounted in cassettes 10 are mounted on the holder 8 of the swing mechanism of containers 9 with the lid 2 of the container 1 with the coolant inside it. The required temperature of the coolant is established by means of heating elements 4, controlled via the signal control unit 7 from the temperature sensor 5.

When containers 9 are immersed in the coolant by closing the cover 2, the magnet 22 closes the contacts of the magnetically controlled contact (reed switch) 21. The required defrosting time is determined by the relay 18 of the control unit 7, which is determined and previously known for each type of biomaterial and cone capacity. trainer 9.

Normally closed contacts 19 and 20 of time relay 18 include electromagnetic

5 a locking device 3 for holding the lid 2 with a latch 23 and an electric motor 15.

The crank 13 secured on the shaft 14 of the electric motor 15 cooperates with the coupling 16 of the drive 11 of the swing mechanism of the containers 9.

The holder 8 and the containers 9 installed on it with the aid of the cassette 10 begin to perform oscillatory (rocking) movements, ensuring mixing

5 coolant in tank 1 and biomaterial in containers 9.

After the relay 18 has been completed, the time set for the time corresponding to the defrost time of this

The container's biomaterial 0, the contacts 19 and 20 of the time relay 18 are switched to the open position, disconnecting the electrical circuit from the electric motor 15 and the electromagnetic locking device 3, which held at

5 of the connected electrical circuit, the cover 2. The cover 2 under the action of the adjustable spring 24 returns to its original open position, removing from the heat carrier the containers 9 with the biomaterial, together with the container mechanism, placed in the bracket 12, which is rigidly connected to the cover 2.

The presence in the device of a mechanism for rocking containers with the ability to remove containers with biomaterial from

5 containers with coolant after thawing, contributes to improving the safety of the biomaterial by mixing the biomaterial in containers and reducing the temperature gradient in the volume of the biomaterial,

0 providing more intensive heat exchange between the coolant and containers, as well as eliminating the influence of the coolant after defrosting.

Claims (1)

Invention Formula 5 A device for defrosting biomaterials in containers, which contains a container for a heat transfer medium with a hinged lid; the defrost process, the device is equipped with a container swing mechanism, which includes a drive housed in the bracket can be rotated, a rotary movement into a swinging unit, wherein the holder is fixed on the shaft and the bracket is rigidly connected to the cover. nineteen FIG. 2 I Fi.Z Buff a FiaM