Freezer and ice generator thereof

FIELD: cooling equipment, particularly freezers.

SUBSTANCE: freezer has the first and the second cooling zones adapted to maintain different temperatures and ice generator. Ice generator comprises cooling loop filled with coolant. Ice tank is in thermal contact with the cooling loop through the first heat-exchanger. The ice generator cooling loop is separated from freezer cooling loop and comprises the second heat-exchanger arranged in the second cooling zone of the freezer. Ice tank is located in the second cooling zone.

EFFECT: decreased time and increased costs of ice generation.

10 cl, 4 dwg

 

The technical field

The present invention relates to a device for ice maker (ice machine) for use in the refrigerator, and has such an ice maker to the refrigerator.

The level of technology

The simplest ice maker for a refrigerator is a water-filled bowl, divided by the number of cameras that can be put in the freezer compartment of a refrigerator for freezing in her water.

The freezing process takes a long time, since the cooling bowl by contact with the evaporator of the freezing chamber is possible only through the bottom of the bowl if the evaporator forms a bottom freezer. Modern refrigerators, the evaporator, usually located on the rear wall of the freezing chamber so that the cooling of the bowl is mostly indirectly circulating in freezer air and takes even more time. Unexpected need for this simple ice the ice machine to quickly meet can not.

To speed up the preparation of ice, the proposed refrigerator in which the ice maker is connected to the cooling circuit of the refrigerator and receives from him the refrigerant. Although this method is very effective, however, it is technically complicated and accordingly expensive, so is suitable rather for whom areskog, than for domestic use.

Disclosure of inventions

The present invention is to provide an ice maker for refrigerator and respectively equipped with an ice-maker refrigerator, which make possible the rapid preparation of ice and at the same time inexpensive.

This problem is solved by the ice machine with signs of paragraph 1 and, accordingly, refrigerator with signs of paragraph 6 of the claims.

The essential feature of the invention of the ice machine is separating its cooling circuit from the cooling circuit of the refrigerator, which uses the ice machine. In other words, the cooling circuit by the invention of the ice machine is closed; it has its own refrigerant that is not associated with the refrigerant of the refrigerator. This greatly simplifies the embedding of the ice machine in the refrigerator, as in a common refrigerator requires only minor changes to it could embed the ice machine and the connecting channels between circuit cooling system the refrigerator and the ice machine is not needed.

Cooling of the ice machine, necessary for the preparation of ice can simply be performed by heat exchange in the second heat exchanger installed in the cooling zone of the refrigerator, where the achieved temperature nor the e 0° C. It allows for cooling circulating in the cooling circuit of the ice machine, the refrigerant so that he is able through the first heat exchanger to freeze water into ice capacity, for ice machines require no refrigeration machine. Therefore, the cost of manufacturing the invention of the ice machine may be small.

Since the refrigerant of the ice machine should not be operated in closed thermodynamic cycle, it can be successfully selected such that under normal operating conditions of the ice machine to remain fluid throughout the cooling circuit. This allows for a relatively small volumetric flow in the cooling circuit to transfer a greater amount of heat than in the case of gaseous refrigerant.

The second heat exchanger preferably is calculated for use as a reservoir of refrigerant, i.e. its volume is selected larger than would be required from the point of view of effective heat exchange with the flow of the refrigerant. This allows you to store large quantities of cold refrigerant in the second heat exchanger at a time when the ice machine is not used. When he turns, he is immediately given a large amount of cooled refrigerant.

For the circulation of refrigerant to the ice machine is preferably equipped us the som and, preferably, a timer to control the operation of the pump. The timer provides automatic shutdown of the pump through presumably sufficient time to freeze plenty of water after you turn the ice machine by the user. This eliminates the continuous supply of heat in the cooling zone of the refrigerator through a second heat exchanger located in this area, when it is not required for freezing the water into ice capacity. In addition, due to the shutdown of the pump is a superficial defrosting ready-made ice in ice capacity, which facilitates its removal from the container.

The invention refrigerator has at least one first and one second cooling zone, configured to maintain different temperatures, and the capacity of the ice is located in the first cooling zone and a second heat exchanger in the second zone. When the ice machine ice capacity and coupled with her first heat exchanger helps to cool the first zone, while the second cooling zone is heated by the second heat exchanger. While due to work / need a second cooling zone in the cooling capacity increases, the corresponding need first zone is reduced, so that the operation of the ice machine did not significantly affect consumption of holodilny the ohms cooling capacity.

The second heat exchanger occupies less space, if it be placed on the ceiling or on the floor of the second cooling zone.

In order to obtain a large heat exchange surface, the second heat exchanger is preferably mainly across the entire width and/or depth of the second cooling zone.

It is desirable that the ice-maker fridge was removable. This will allow for the use of the ice machine to use in vain space for the storage of refrigerated products.

To facilitate inserting and removing the ice machine on the inner wall of the cooling zone, it is useful to install a plug connector for connection of the pump.

It is also advisable that the refrigerant circuit between the first and second heat exchanger has been formed at least partially of flexible hoses. On the one hand, will allow you to set the capacity of the ice at various places in the first cooling zone, which is not currently occupied cooled products, and on the other hand, will allow by provide hoses mobility ice capacity relative to the second heat exchanger to compactly store the ice machine after its removal.

A brief list of figures

Other characteristics and advantages of the invention ensue from the following description of the example of execution with reference to the accompanying drawings. On Figo is Ah drawings shows:

figure 1 - the invention of the refrigerator with two divided compartments with different temperatures, is shown schematically with the removed front door;

figure 2 - image is a perspective projection of the first heat exchanger and ice capacity offered by the invention of the ice machine;

figure 3 is a top view of the second heat exchanger to the ice machine and

figure 4 - the hole in the wall near the door.

The implementation of the invention

Figure 1 schematically depicts a front view of a refrigerator with ice machine according to the present invention. The fridge has two cooling zones, namely, the refrigerating chamber 1 in the upper part of the apparatus, in which when a refrigerator is in normal mode supported temperature above 0°and the freezing chamber 2 at the bottom, which in normal mode supported temperature below 0°C. Both of the cameras 1, 2 are locked by a common door or preferably individually separate doors, which in the figure is not shown.

Set in the refrigerator ice machine consists essentially of two nodes 3, 4, located in the refrigerating chamber 1 and in the freezer 2. The first node 3 is composed of the first heat exchanger and ice capacity and are shown in detail in figure 2; the second node 4 consists of a pump and the second heat exchanger sublattice and the BNO is shown in figure 3. Both nodes are connected by lines 5, 6 of the refrigerant. In the refrigerator with one door for both cameras 1, 2, where both cameras are not necessarily hermetically separated from each other, lines 5, 6 of the refrigerant can pass freely in front of the front edge of the horizontal partition 7, separating from each other cameras 1, 2. If each cell is 1, 2 has a separate door, then, as shown in figure 4, the front edge of the partition 7 may be made of the neck 8, which is inserted into the locking part 9 so that the complementary semi-cylindrical recesses 10 on the edges of the cutout 8 and accordingly the locking part 9 form passages for lines 5, 6 of the refrigerant and at the same time the front edge 11 of the locking part 9 is mounted flush with the wall 7.

Figure 2 shows a possible embodiment of the first node 3 ice machine. The first heat exchanger 12 node 3 is made here in the form of a hollow body made of metal or plastic with two mounting fittings 13 for lines 5, 6 of the refrigerant on the side of the heat exchanger and many chambers or recesses 14 on the upper side of the heat exchanger. Front side of the first heat exchanger 12 is shown with a partial tear-out to show the partitions 15 located inside the heat exchanger and directing flowing a refrigerant through svili is the trajectory, covering the bottom and sides of all of the recesses 14.

In the simplest form, a set of recesses 14 could serve as a container for ice. However, this variant with a capacity of ice is thin-walled bowl 16 with numerous recesses 17, are made so as to flush to enter into the cavities 14 of the first heat exchanger 12. This allows after freezing of water in the recesses 17 to remove the bowl 16, at the same time not removing the first heat exchanger 12.

Figure 3 shows a top view of a possible design of the second heat exchanger 18 of the ice machine. It consists of two flat plastic pelucas welded together along the edges and along numerous lines 20 to form a tortuous path for the refrigerant.

The volume of the second heat exchanger 18 has approximately the same order of magnitude as the Cup 16 ice. Therefore, at least at the beginning of the ice can cool the water in the bowl 16 is significantly more effective than through heat exchange in the second heat exchanger 18.

The pump 21 for the refrigerant is set to the second heat exchanger 18 and has two connecting fitting 22, 23, one of which 22 is designed to connect to one of the lines 5, 6 of the refrigerant, and the other 23 serves as input to the second heat exchanger 18. Another connection fitting 24, the pre is scheduled to join one of the lines 5, 6 refrigerant, is located on the top poluchasa second heat exchanger 18. Cable 25 power pump has a plug 26. Not shown in the drawing, corresponding to the plug 26 and the outlet of the pump 21 is located on the inner wall of the freezing chamber 2.

Not shown in the drawing, the control circuit is located on the pump 21. It is intended that after the user clicks the button to turn the pump 21 for a time sufficient to freeze water, poured into the container 16. After this time, the control circuit turns off the pump 21. Now the ice in the vessel begins to slowly melt, which is highly desirable, as formed in the recesses 17 of the bowl 16, the ice cubes are easier to remove if they had melted from the surface.

Can also be provided, so that after some time the control circuit periodically included pump 21. Duration of phase switching when the pump is operating in an intermittent mode is selected so as not to prevent the melting of the ice, even for a considerable period of time.

The length of the edges in generally rectangular second heat exchanger 18 approximately corresponds to the width and depth of the freezing chamber 2, so that the second heat exchanger 18 can simply install by putting it on the tabs provided on the side walls of the freezing chamber, or by inserting e what about in corresponding guides on these walls.

Alternatively, you can also loosely, put the second heat exchanger 18 on the shelf 27, separated by a small distance of a few centimetres from the ceiling of the freezing chamber 2. This option is especially useful if the user can install and disassemble the ice maker in the refrigerator, as the regiment 27 at a time when it is not used for the second heat exchanger 18 may be used to accommodate the battery cold and other similar items.

As a refrigerant for ice machine is particularly suitable alcohol or alcohol mixture, or a mixture of alcohol and water.

Alternative to the above examples of performance can, of course, serve option in which the pump and, as appropriate, the control circuit included in the first node.

Of course, the freezer can also be placed in the fridge on top and freezer below it; in this case, the location for the second heat exchanger is provided at the bottom of the freezer compartment 2.

1. Refrigerator with first and second cooling zones that are configured to maintain different temperatures and ice machine having a cooling loop containing a refrigerant and capacity (16) for ice, which is in thermal contact with a cooling circuit through the first heat exchanger (12), and specify the first cooling circuit of the ice machine is separated from the cooling circuit of the refrigerator and contains placed in the area (2) cooling of the fridge the second heat exchanger (18), characterized in that the receptacle (16) for ice is located in the first zone (1) cooling, and the second heat exchanger (18) is located in the second zone (2) cooling.

2. The refrigerator according to claim 1, characterized in that the second heat exchanger (18) is designed for use as a reservoir of refrigerant.

3. The refrigerator according to claim 1 or 2, characterized in that it contains a pump (21) for circulation of a refrigerant and a timer to control the pump operation.

4. The refrigerator according to claim 1 or 2, characterized in that the refrigerant around the cooling circuit during the normal operating conditions of liquid remains.

5. The refrigerator according to claim 1 or 2, characterized in that the second heat exchanger during operation of the ice machine gives off heat in the cooling zone.

6. The refrigerator according to claim 1, characterized in that the second heat exchanger (18) is located on the ceiling or on the bottom of the second zone (2) cooling.

7. The refrigerator according to claim 1 or 6, characterized in that the second heat exchanger (18) is located mainly across the entire width and/or depth of the second zone (2) cooling.

8. A refrigerator according to one of claims 1, 2, 6, characterized in that the ice machine are removable.

9. The refrigerator according to claim 3, characterized in that on the inner wall area (2) cooling it has a connector for connecting a pump (21).

10. The refrigerator according to claim 6 or 7, characterized in that the cooling circuit between the first and the second Teploobmennik the (12, 18) has lines (5, 6) of the refrigerant, which is at least partially made in the form of flexible hoses.



 

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