KR20160060934A - Ice maker for forming refrigerant evaporator - Google Patents

Abstract

Disclosed is an ice maker where a refrigerant evaporation pipe is formed. In the ice maker where the refrigerant evaporation pipe is formed, the ice maker may include: an inner pipe for accommodating an auger coaxially installed inside; a refrigerant pipe which is spirally formed on an outer circumference of the inner pipe, and has a refrigerant inlet and a refrigerant outlet formed at both ends; an outer pipe for accommodating the inner pipe and the refrigerant pipe; and a refrigerant supply capillary tube for feeding a refrigerant to a clearance between the inner pipe and the outer pipe. The ice maker has excellent cooling efficiency not only at a lower part of a cooling pipe but also at an upper part thereof through which the refrigerant is discharged.

Description

ICE MAKER FOR FORMING REFRIGERANT EVAPORATOR [0002]

The present invention relates to an ice maker in which a refrigerant evaporating pipe is formed. And more particularly, to an ice maker in which a refrigerant evaporating pipe for increasing a cooling efficiency is formed by using a refrigerant supply capillary tube and a refrigerant supply nozzle.

1 is a view showing a general auger type ice maker.

1, the auger type ice maker is constructed by slowly compressing ice containing water transferred by being pushed up by an auger 12 coaxially disposed in a cooling pipe 11, thereby removing most of the water It is possible to make a lump of ice by creating a hard ice pillar and cutting this ice pillar into a chip shape.

2 is a view showing a cooling pipe of a conventional auger type ice maker.

2, in order to cover the refrigerant pipe 22 in the cooling pipe 21, a cooling pipe of the auger type ice-maker can be used in such a manner that the refrigerant pipe 22 is directly in close contact with the outer periphery of the cooling pipe 21 have. Here, as the refrigerant pipe 22, a copper pipe having a high corrosion resistance is mainly used for a refrigerant or the like passing through the inside of the refrigerant pipe 22 having a good thermal conductivity, and the refrigerant pipe 22 is fixed by soldering in a spiral- . In the soldering method, the molten solder material is melted in the spiral space between the cooling pipe 21 and the refrigerant pipe 22, which is closely attached along the spiral of the refrigerant pipe 22 to the outer periphery of the cooling pipe 21, Or a method in which a so-called blower flows in or a refrigerant pipe 22 is wound around a cooling tube 21, the lead is wound in a spiral space while being internally heated, and then the cooling tube is heated to the melting temperature Can be used.

However, the lower part of the cooling pipe has a good cooling efficiency because the refrigerant (gas) expanded in the low temperature state is injected into the inlet of the refrigerant pipe 22. However, the upper part of the cooling pipe 21 located at the outlet of the refrigerant pipe 22, There was a problem of falling.

According to an aspect of the present invention, there is provided a refrigerating apparatus comprising a cooling device, a refrigerant supply capillary tube and a refrigerant supply nozzle formed in the interior of the cooling device so that not only a lower portion of a cooling pipe through which a refrigerant flows but also a refrigerant evaporating pipe, .

An object of the present invention is to provide an ice maker in which a coolant pipe is formed into a vertically long oval shape and a coolant supply capillary tube is inserted into the inside of the coolant pipe to form a coolant evaporating pipe capable of increasing evaporation effect.

According to an aspect of the present invention, there is provided an ice maker in which a refrigerant evaporating pipe proposed in the present invention is formed, an inner pipe accommodating an auger coaxially installed therein; A refrigerant pipe in which a coolant inlet port and a coolant outlet port are formed at both ends in a spiral shape, which is recommended on an outer peripheral surface of the inner pipe; An outer pipe housing the inner pipe and the refrigerant pipe; And a coolant supply capillary tube for supplying coolant to a space between the inner tube and the outer tube.

According to another aspect of the present invention, there is provided an ice maker in which a refrigerant evaporating pipe proposed in the present invention is formed, comprising: a cylindrical inner tube; A refrigerant pipe in which a coolant inlet port and a coolant outlet port are formed at both ends in a spiral shape, which is recommended on an outer peripheral surface of the inner pipe; An outer tube which is formed in a cylindrical shape and houses the inner pipe and the refrigerant pipe, and which generates ice from the outer peripheral surface; And a coolant supply capillary tube for supplying coolant to a space between the inner tube and the outer tube.

According to another aspect of the present invention, there is provided an ice maker in which a refrigerant evaporating pipe proposed in the present invention is formed, the ice maker comprising: an inner pipe accommodating an auger provided with an ice-making space portion therein and installed coaxially; A spiral screw having an inner portion formed in a cylindrical shape to receive the inner pipe and having a helical thread formed on the outer peripheral surface thereof; An outer tube for receiving the inner tube and the helical screw; And a plurality of coolant supply nozzles formed in the inner tube and supplying coolant to a space between the inner tube and the outer tube.

According to another aspect of the present invention, there is provided an ice maker in which a refrigerant evaporating pipe proposed in the present invention is formed, comprising: a cylindrical inner tube; A spiral screw having an inner portion formed in a cylindrical shape to receive the inner pipe and having a helical thread formed on the outer peripheral surface thereof; An outer tube which is formed in a cylindrical shape and accommodates the inner tube and the helical screw, and which generates ice on the outer circumference; And a plurality of coolant supply nozzles formed in the inner tube and supplying coolant to a space between the inner tube and the outer tube.

According to the embodiments of the present invention, the coolant supply capillary tube and the coolant supply nozzle are formed inside the cooling device, so that not only the lower part of the cooling tube into which the cooling medium flows but also the cooling efficiency at the upper part where the cooling medium flows out are excellent. And an ice maker in which a refrigerant evaporating pipe capable of cooling and improving ice quality can be formed.

According to the embodiments of the present invention, it is possible to provide an ice maker in which a coolant pipe is formed into a vertically long oval shape and a coolant supply capillary tube is inserted into the inside of the coolant pipe to form a coolant evaporating pipe capable of increasing evaporation effect.

1 is a view showing a general auger type ice maker.
2 is a view showing a cooling pipe of a conventional auger type ice maker.
3 is a perspective view illustrating an ice maker in which a refrigerant evaporator is formed according to an embodiment of the present invention.
FIG. 4 is a side view showing an ice maker in which a refrigerant evaporator is formed according to an embodiment of the present invention.
FIG. 5 is a plan view showing an ice maker in which a refrigerant evaporator is formed according to an embodiment of the present invention.
6 is a front view showing an ice maker in which a refrigerant evaporator is formed according to an embodiment of the present invention.
7 is a cross-sectional view illustrating an AA 'cross-section of an ice maker in which a refrigerant evaporating pipe of FIG. 6 is formed according to an embodiment of the present invention.
FIG. 8 is a cross-sectional view of a BB` section of an ice maker in which a refrigerant evaporator of FIG. 6 is formed according to an embodiment of the present invention.
9 is a side view showing an inner tube and a coolant supply device of an icemaker in which a refrigerant evaporating pipe according to an embodiment of the present invention is formed.
10 is a perspective view illustrating a ice making drum of an icemaker in which a refrigerant evaporating pipe according to another embodiment of the present invention is formed.
11 is a cross-sectional view of the ice-making drum of the icemaker in which the refrigerant evaporator of FIG. 10 is formed, according to another embodiment of the present invention, taken along the line C-C '.
12 is a perspective view illustrating an ice maker in which a refrigerant evaporating pipe according to another embodiment of the present invention is formed.
13 is a cross-sectional view taken along the line D-D 'of the ice maker in which the refrigerant evaporator of FIG. 12 is formed according to another embodiment of the present invention.
FIG. 14 is a perspective view for explaining a nozzle pipe of an ice maker in which a refrigerant evaporating pipe according to another embodiment of the present invention is formed; FIG.
15 and 16 are sectional views showing a part of an ice maker in which a refrigerant evaporator according to another embodiment of the present invention is formed.
FIG. 17 is a cross-sectional view illustrating an ice maker in which a refrigerant evaporating pipe according to another embodiment of the present invention is formed.
18 to 21 are views for explaining an ice maker in which a refrigerant evaporating pipe according to another embodiment of the present invention is formed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to an ice maker in which a refrigerant evaporating pipe for increasing a cooling efficiency is formed by using a refrigerant supply capillary tube. Here, the applicable icemaker is applicable to an auger type ice maker for producing flake ice and a drum type ice maker for producing powder ice, and each of them will be described below.

(Example 1)

3 is a perspective view illustrating an ice maker in which a refrigerant evaporator is formed according to an embodiment of the present invention.

3, an ice maker in which a refrigerant evaporator is formed is an auger type ice maker for producing flake ice. The ice maker may include an inner tube 110, an outer tube 120, a refrigerant pipe, and a coolant supply capillary tube 230. Here, the refrigerant evaporation pipe may refer to a pipe that generates refrigerant by supplying refrigerant such as a refrigerant pipe or a refrigerant supply capillary tube to generate evaporation.

The inner tube 110 is formed in a cylindrical shape and an ice-making space portion for accommodating the auger coaxially installed therein can be formed. In the ice making space part, raw material such as water is supplied to the inner wall of the inner tube, and ice is formed by the external coolant. Ice of the inner wall is cut by the rotation of the auger and discharged to the outside, thereby producing flake ice.

The outer tube 120 has a cylindrical shape and can receive the inner tube 110 and the refrigerant pipe. A coolant inlet port 210, a coolant outlet port 220, and a coolant supply port 230 may be formed in the outer tube 120.

The refrigerant pipe is recommended to be spirally formed on the outer circumferential surface of the inner pipe 110. The refrigerant inlet port 210 and the refrigerant outlet port 220 are formed at both ends so that the refrigerant may flow into the refrigerant pipe,

The refrigerant supply capillary tube 250 can supply the refrigerant to the space between the inner tube 110 and the outer tube 120. At this time, the refrigerant supply capillary tube 250 may be formed such that its end is bent so as to be at least partly accommodated in the refrigerant pipe formed in the space between the inner tube 110 and the outer tube 120. A coolant supply port 230 through which coolant is supplied to the upper end of the outer tube 120 may be formed. Hereinafter, it will be described in more detail below.

FIG. 4 is a side view showing an ice maker in which a refrigerant evaporator is formed according to an embodiment of the present invention.

FIG. 5 is a plan view showing an ice maker in which a refrigerant evaporator is formed according to an embodiment of the present invention.

4 and 5, the icemaker in which the refrigerant evaporator is formed may include a refrigerant inlet 210, a refrigerant outlet 220, and a refrigerant inlet 230.

The coolant inlet port 210 is an inlet for introducing the coolant into the coolant pipe formed in a spiral shape on the outer peripheral surface of the inner tube 110. The coolant inlet port 210 may be disposed at the lower end of the outer tube 120,

The refrigerant outlet 220 is an outlet through which the refrigerant supplied to the refrigerant pipe formed in a spiral shape on the outer circumferential surface of the inner tube 110 is discharged. The outlet is preferably disposed at the upper end of the outer tube 120. At this time, the refrigerant supplied through the refrigerant supply port 230 may also be discharged through the refrigerant outlet 220.

A coolant supply capillary tube 250 guided to a space between the inner tube 110 and the outer tube 120 is inserted into the coolant supply port 230 so that the coolant is supplied to the space between the coolant pipe and the inner tube, Can supply.

At this time, the coolant supply port 230 may be disposed at the coolant outlet 220, preferably at the top of the coolant pipe 120, So that evaporation is uniformly generated in the entire recommended portion of the refrigerant pipe, thereby improving the cooling efficiency.

6 is a front view showing an ice maker in which a refrigerant evaporator is formed according to an embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a cross section taken along the line A-A 'of the ice maker in which the refrigerant evaporating pipe of FIG. 6 is formed according to an embodiment of the present invention.

8 is a cross-sectional view taken along line B-B 'of an ice maker in which a refrigerant evaporator of FIG. 6 is formed according to an embodiment of the present invention.

6 to 8, the icemaker in which the refrigerant evaporator is formed may include an inner tube 110, an outer tube 120, a refrigerant pipe 240, and a refrigerant supply capillary tube 250.

The inner pipe 110 is formed in a cylindrical shape, and an ice-making space portion can be formed therein. In addition, the auger provided coaxially inside the ice making space can be accommodated.

Since the inner pipe 110 is a portion where ice making is performed and the inner portion is a portion where water is contacted and processed, a material having good thermal conductivity and good corrosion resistance can be used. For example, stainless steel, an aluminum material, or the like can be used.

The inner pipe 110 is an ice-making space part, but its shape is not limited, but a hole is formed therein, and the auger can be coupled to the inner part of the hole so as to be rotatable. Accordingly, the auger is rotated by an external power source (motor), and the ice formed on the inner wall of the inner pipe 110 is scraped off and pushed up to the outside to discharge it to the outside, thereby producing flake ice. At this time, a raw material for generating ice such as water can be supplied to the inside of the inner pipe 110 by a water supply device or the like.

The outer tube 120 has a cylindrical shape and can accommodate the inner tube 110 and the refrigerant tube 240 therein. Unlike the inner tube 110, the outer tube 120 is not in direct contact with water or machined. Therefore, the outer tube 120 may not be made of a material having good corrosion resistance such as stainless steel. Can be maintained.

The refrigerant pipe 240 may be in direct contact with the outer circumference of the inner pipe 110 and may be used. That is, the refrigerant pipe 240 is recommended to be spirally formed on the outer peripheral surface of the inner pipe 110, and the refrigerant inlet port 210 and the refrigerant outlet port 220 may be formed at both ends. The refrigerant pipe 240 has a refrigerant outlet 220 formed at the upper end of the outer tube 120 and a refrigerant inlet 210 formed at the lower end of the outer tube 120, Can flow.

Here, the refrigerant pipe 240 has excellent thermal conductivity, and a copper pipe having high corrosion resistance against refrigerant flowing in the inside can be mainly used. The refrigerant pipe 240 is recommended on the outer periphery of the inner pipe 110 and is not fixed to the inner pipe 110, so that the production cost can be reduced, the efficiency of the space can be increased, and the evaporation effect can be further enhanced.

The refrigerant pipe 240 may be pressurized by using a machine or the like so that the cross section of the refrigerant pipe 240 is formed into an elliptical shape having a longer length than the transverse length. Accordingly, by partially inserting the coolant supply capillary tube 250 having a diameter smaller than the diameter of the coolant pipe 240 in the space portion between the refrigerant pipes 240 having the elliptical cross section, the refrigerant is guided to the space portion by the pressure Can flow.

For example, the refrigerant pipe 240 can be made of copper pipe, which can be changed by using a machine or the like to change the horizontal diameter from 6 pi to 3-4 pi, A coolant supply capillary 250 having a diameter of about 2-3 picoseconds can be inserted between the inner tube 110 and the outer tube 120. The refrigerant pipe 240 is connected to the refrigerant pipe 240 by pressure so as to increase the evaporation effect by using the elliptical refrigerant pipe 240 by pressing the existing copper pipe and to guide the refrigerant supply capillary tube 250 to the space between the inner pipe 110 and the outer pipe 120, The evaporation effect can be further enhanced. At this time, the refrigerant pipe 240 is not fixed to the outer circumferential surface of the inner tube 110, and is generally irregularly formed irregularly when pressed in an elliptical shape using a machine or the like so that the inner tube 110 and the refrigerant pipe 240 A space that is spaced apart is generated. The refrigerant supplied through the refrigerant supply capillary tube 250 flows into the spaced spaces or the like to further increase the evaporation, thereby enhancing the cooling efficiency.

The refrigerant supply capillary tube 250 is at least partly accommodated in a space between the inner tube 110 and the outer tube 120 and the refrigerant supply port 230 is formed at the upper end of the outer tube 120, The refrigerant may flow into the space between the inner tube 110 and the outer tube 120 by the supplied pressure, and evaporation may occur.

In other words, a coolant supply port 230 is formed at the upper end of the outer tube 120, and a coolant supply capillary tube 250 in the form of a pipe is inserted into the coolant supply port 230 so as to be inserted between the inner tube 110 and the outer tube 120 And can be guided to the space portion. The refrigerant is supplied to the inside of the space between the refrigerant pipes 240 by the pressure of the refrigerant introduced into the space between the inner pipe 100 and the outer pipe 120, The refrigerant can be discharged through the refrigerant pipe 220. The coolant supply capillary tube 250 is formed on the coolant outlet port 220 side and has a diameter smaller than the diameter of the coolant pipe 240. The end of the coolant supply capillary tube 250 is bent through the coolant supply port 230, ). ≪ / RTI > It is also possible to supply the refrigerant by guiding the refrigerant supply capillary tube 250 into the space between the refrigerant pipes 240 that are wound not inside the refrigerant pipe 240.

The coolant supply capillary 250 may include a plurality of coolant supply nozzles formed in the inner tube 110. The coolant supply capillary tubes 250 may include a plurality of coolant supply nozzles formed in the inner tube 110 and the outer tube 120, By supplying the refrigerant to the space portion, evaporation can be caused and the cooling efficiency can be increased. This will be described in more detail below.

In this way, the refrigerant is supplied to the refrigerant supply port 230 and flows along the refrigerant supply capillary tube 250 from the upper side to the lower side to evaporate the refrigerant. The end of the refrigerant supply capillary tube 250 is connected to the inter- So that the refrigerant can be introduced into the space between the refrigerant supply capillary tube 250 and the refrigerant pipe 240. Therefore, the refrigerant flows to the space between the refrigerant pipes 240 by the supplied pressure, and then returns again from the lower part to the upper part, so that evaporation action occurs again and can be discharged to the refrigerant outflow port 220.

Here, the length of the refrigerant supply capillary tube 250 is not limited, but may be inserted into the refrigerant supply pipe 230 so as to guide the refrigerant to the space between the refrigerant pipes 240.

As described above, the refrigerant supplied to the refrigerant supply capillary tube 250 flows through the refrigerant supply capillary tube 250 and evaporates. The pressure of the refrigerant is supplied to the inside of the capillary tube 250 to continuously evaporate, The refrigerant flows out through the space, is discharged to the refrigerant outlet, evaporates and can utilize all the remaining heat, thus enabling efficient cooling.

The refrigerant supply device and the refrigerant recovery device are separately constructed so that the refrigerant inlet port 210 of the refrigerant pipe 240 and the refrigerant supply port 230 of the refrigerant supply capillary tube 250 can be connected to the refrigerant supply device, The refrigerant outlet 220 of the refrigerant pipe 240 may be connected to the refrigerant recovery device.

9 is a side view showing an inner tube and a coolant supply device of an icemaker in which a refrigerant evaporating pipe according to an embodiment of the present invention is formed.

Referring to FIG. 9, the inner pipe 110, the refrigerant pipe 240, and the refrigerant supply capillary tube 250 of the icemaker in which the refrigerant evaporation pipe is formed are illustrated. The refrigerant pipe 240 includes a refrigerant supply capillary tube 250) are inserted in the first embodiment.

Here, the flow of the refrigerant flows from the refrigerant inlet 210 of the lower portion of the refrigerant pipe 240 to the upper refrigerant outlet 220, and the refrigerant cools the inner tube 110 by evaporation. However, there is a problem that the cooling efficiency is lowered around the outlet of the refrigerant from which the refrigerant flows out. Accordingly, the coolant supply capillary tube 250 is inserted into the inner tube 110 and the outer tube 120 to supply the coolant to the coolant outlet, thereby cooling the inner tube 110 by vigorous evaporation from the coolant outlet.

The end of the refrigerant supply capillary tube 250 is located in the space between the refrigerant pipes 240. The refrigerant introduced into the refrigerant supply capillary tube 250 flows into the space between the refrigerant pipes 240 by the pressure, . Since the refrigerant is not fixed to the inner pipe and the refrigerant pipe 240, the refrigerant flows to the separated space formed and returns to the refrigerant outflow port, and evaporation occurs. Therefore, all the residual heat can be used, and the cooling efficiency can be improved.

(Example 2)

10 is a perspective view illustrating a ice making drum of an icemaker in which a refrigerant evaporating pipe according to another embodiment of the present invention is formed.

11 is a cross-sectional view of the ice-making drum of the icemaker in which the refrigerant evaporator of FIG. 10 is formed, according to another embodiment of the present invention, taken along the line C-C '.

Referring to FIGS. 10 and 11, the ice maker in which the refrigerant evaporating pipe is formed is a drum type ice maker for producing powder ice, and in contrast to the auger type ice maker described in FIGS. 3 to 9, the cooling efficiency can be increased by evaporation of the outer wall.

The ice making drum 300 of the ice maker in which the refrigerant evaporating pipe is formed may include an inner pipe 310 and an outer pipe 320. Here, the inner pipe 310 and the outer pipe 320 are spaced apart from each other by a predetermined distance, so that the refrigerant pipe 410 and the refrigerant supply capillary tube, through which the refrigerant flows, may be formed. The constitution of each of the ice makers in which the refrigerant evaporating pipe is formed is similar to that of the ice maker explained in Figs. 3 to 9, so that the same parts will be omitted and differences will be mainly described.

The inner tube 310 may have a cylindrical shape, and a rotary shaft may be formed at both ends so as to be rotatable. A cooling device for supplying the coolant may be formed inside.

The outer tube 320 has a cylindrical shape and may receive the inner tube 310 and be spaced apart from each other by a predetermined distance. Accordingly, the outer pipe 320 can receive the inner pipe 310 and the refrigerant pipe 410.

Then, ice making is generated on the outer circumferential surface of the outer tube 320, and powdered ice can be produced. That is, on the outer circumferential surface of the outer tube 320, a raw material capable of producing ice is provided, and when the raw material is cooled by the cooling device formed therein and ice is formed on the outer circumferential surface of the outer tube, So that powdered ice can be produced.

The refrigerant pipe 410 is formed in a spiral shape on the outer peripheral surface of the inner pipe 310, and a refrigerant inlet port and a refrigerant outlet port may be formed at both ends.

The refrigerant supply capillary can supply the refrigerant to the space between the inner pipe 310 and the outer pipe 320.

12 is a perspective view illustrating an ice maker in which a refrigerant evaporating pipe according to another embodiment of the present invention is formed.

13 is a cross-sectional view taken along the line D-D 'of the ice maker in which the refrigerant evaporator of FIG. 12 is formed according to another embodiment of the present invention.

12 and 13, the icemaker in which the refrigerant evaporator is formed may include an inner tube 310, an outer tube 320, a refrigerant pipe 410, and a refrigerant supply capillary tube.

The inner tube 310 has a cylindrical shape and can be rotated by the rotation shaft 330. In addition, a refrigerant supply pipe 420 may be additionally provided in the inner pipe 310.

The outer pipe 320 has a cylindrical shape and can receive the inner pipe 310 and the refrigerant pipe 410 therein. More specifically, the inner tube and the outer tube are rotated by the driving motor while the inner tube and the outer tube are partly contained in the water supply tank, the raw material of the water supply tank is cooled on the outer peripheral surface of the outer tube, By cutting, powdered ice can be produced.

At this time, a hollow vaporizing chamber is formed in the interior of the cooling drum (inner tube and outer tube), and a sprocket 340 can be formed on the outer one end surface of the cooling drum so as to receive the rotational force of the driving motor through the chain. Here, the sprocket 340 may be connected to the direct drive motor and rotated.

Further, a cooling device for supplying a coolant to the inside can be formed to cool the raw material on the outer peripheral surface of the outer tube 320. The cooling device may be a refrigerant pipe 410 which is formed on the inner peripheral surface of the outer tube 320 and / or a refrigerant supply tube 420 formed inside the inner tube 310.

The refrigerant supply pipe 420 allows the refrigerant to flow into the inner pipe 310, and a method of spraying the refrigerant on the outer peripheral surface of the inner pipe 310 by means of a pipe, a nozzle pipe, or the like can be used.

By using the cutting edge, ice formed on the outer peripheral surface of the outer tube 320 is cut to generate powder ice, and the generated powder ice can be dropped. Here, the shape of the ice-maker is not limited, and various types of drum-type ice makers can be used.

The refrigerant pipe 410 is formed in a spiral shape on the outer peripheral surface of the inner pipe 310, and a refrigerant inlet port and a refrigerant outlet port may be formed at both ends. The refrigerant pipe 410 may have a refrigerant outlet formed at one end thereof and a refrigerant inlet port at the other end thereof to allow the refrigerant to flow into the refrigerant inlet port and flow out to the refrigerant outlet. In the ice maker using the cooling drum 300, the ice making is generated on the outer peripheral surface of the outer tube 320, so that the coolant inlet port and the coolant outlet port can be formed inside.

The refrigerant pipe 410 is installed on the outer periphery of the inner pipe 310 and is not fixed to the inner pipe 310, so that the production cost can be reduced, the efficiency of the space can be increased, and the evaporation effect can be enhanced. Further, the refrigerant pipe 410 is preferably provided in the space between the inner pipe and the outer pipe, and it is possible to further improve the cooling effect of the outside by adhering it to the outer pipe.

On the other hand, the refrigerant pipe 410 can be pressurized by using a machine or the like so that its cross section is formed in an elliptical shape having a longer length than the transverse length. Accordingly, the refrigerant supply capillary tube having a small diameter is inserted into the refrigerant pipe 410 having the elliptical cross section, and the refrigerant is supplied by the pressure to evaporate. Then, the refrigerant is not fixed to the space, The refrigerant flows into the formed space again, and evaporation occurs again, and the refrigerant can be discharged to the refrigerant outflow port. As a result, evaporation is actively generated and the cooling efficiency can be increased.

The refrigerant supply capillary tube can introduce the refrigerant into a space between the inner tube 310 and the outer tube 320. At this time, the refrigerant supply capillary tube may be formed to be accommodated in at least a part of the refrigerant pipe 410 formed in the space portion between the inner pipe 310 and the outer pipe 320. In other words, the coolant supply capillary tube may be guided to the space between the inner tube 310 and the outer tube 320 by inserting the coolant supply capillary tube in the form of a pipe into the coolant supply port. An end of the refrigerant is introduced into the space between the inner pipe 100 and the outer pipe 320 and the refrigerant is supplied into the space between the refrigerant pipes 410 by the pressure of the refrigerant, The refrigerant can be discharged through the discharge port.

Further, the refrigerant supply capillary tube may guide the refrigerant to the space between the refrigerant pipes 410. [

In other words, the refrigerant supply capillary tube is accommodated in at least a part of the refrigerant pipe formed in the space portion between the inner tube and the outer tube, and can be formed at the refrigerant outlet side. The refrigerant supply capillary tube has an end formed in a space between the inner tube and the outer tube, and the refrigerant is supplied to the inside by the pressure to be evaporated and then discharged to the refrigerant outlet.

In addition, the diameter of the coolant supply capillary tube is smaller than the diameter of the coolant pipe 410, and can be accommodated with a certain gap without being fixed inside.

FIG. 14 is a perspective view for explaining a nozzle pipe of an ice maker in which a refrigerant evaporating pipe according to another embodiment of the present invention is formed; FIG.

Referring to FIG. 14, a plurality of coolant supply nozzles can be formed by forming holes in the inner pipe 310. At this time, there is no limitation on the positions and the number of the plurality of coolant supply nozzles, and the coolant pipe 410 and the outer pipe can be cooled by spraying the coolant to the outside of the inner pipe through a plurality of coolant supply nozzles.

The coolant supply capillary may include a plurality of coolant supply nozzles formed in the inner tube 310 and a plurality of coolant supply nozzles may be provided between the inner tube 310 and the outer tube 320, By supplying the refrigerant to the space portion, evaporation can be caused to increase the cooling efficiency.

In this way, when a nozzle is used rather than a capillary, instantaneous ice-making is possible, and the evaporation effect can be enhanced.

For example, the capillary tube is formed to be long and needs to reach the desired length by the pressure to supply the refrigerant. However, since a plurality of nozzles are provided, the evaporation effect can be further accelerated because the capillary tube can reach the desired length more quickly.

(Example 3)

15 and 16 are sectional views showing a part of an ice maker in which a refrigerant evaporator according to another embodiment of the present invention is formed.

FIG. 17 is a cross-sectional view illustrating an ice maker in which a refrigerant evaporating pipe according to another embodiment of the present invention is formed.

15 to 17, an ice maker in which a refrigerant evaporating pipe is formed may include an inner pipe 510, an outer pipe 520, a spiral screw 530, and a coolant supply nozzle 540. The structure of each of the ice-makers in which the refrigerant evaporating pipe is formed is similar to that of the ice-maker described in FIGS. 3 to 14, and therefore, the same parts will be omitted and differences will be mainly described.

The inner pipe 510 accommodates an auger provided with an ice-making space portion and coaxially installed therein, and cuts ice formed on the inner wall along with the rotation of the auger, and discharges the ice to the outside.

The helical screw 530 is formed in a cylindrical shape to receive the inner tube, and a helical thread can be formed on the outer circumferential surface.

The outer tube 520 can receive the inner tube and the helical screw.

Preferably, a plurality of coolant supply nozzles 540 are provided, and the coolant may be supplied to the space between the inner tube and the outer tube. That is, the plurality of coolant supply nozzles 540 supply the coolant to the space between the inner tube and the outer tube, and the supplied coolant is guided along the threaded portion of the helical screw, and evaporation occurs.

In addition, the apparatus may further include a refrigerant supply unit for supplying the refrigerant to the space between the outer tube and the spiral screw.

The helical screw is not limited to the material but may be made of polyether ether ketone (PEEK) material and can be injection molded, which is advantageous for mass production.

Here, the polyether ether ketone (PEEK) material has heat resistance, corrosion resistance, chemical resistance, conductivity, porosity, and is inexpensive and can be mass-produced by injection molding.

Such a structure is also applicable to a drum type ice maker in which ice is produced on the outer peripheral surface of the outer tube, thereby producing powdered ice.

15 and 16, an ice maker in which a refrigerant evaporating pipe is formed may include an inner pipe 510, an outer pipe 520, a spiral screw 530, and a coolant supply nozzle 540.

Here, the inner pipe 510 may have a cylindrical shape.

The helical screw 530 is formed in a cylindrical shape to receive the inner tube, and a helical thread may be formed on the outer circumferential surface.

The outer tube 520 has a cylindrical shape to receive the inner tube and the helical screw, and the outer tube 520 may be freezed. This explanation has been described in the above-mentioned drum type ice maker, so repeated explanation will be avoided.

The coolant supply nozzle 540 may be formed in the inner pipe to supply the coolant to the space between the inner pipe and the outer pipe.

In addition, the apparatus may further include a refrigerant supply unit for supplying the refrigerant to the space between the outer tube and the spiral screw.

The helical screw is not limited to the material but may be made of polyether ether ketone (PEEK) material and can be injection molded, which is advantageous for mass production.

As described above, the helical screw 530 is formed by a mold method, so that not only the heat resistance is excellent but also the evaporation effect can be enhanced even if some shrinkage occurs.

By providing a plurality of nozzles in place of the capillary to supply the refrigerant, the evaporation effect can be enhanced.

18 to 21 are views for explaining an ice maker in which a refrigerant evaporating pipe according to another embodiment of the present invention is formed.

Referring to FIGS. 18 to 21, FIGS. 3 and 6 to 8 respectively correspond to FIG. 3, in which a coolant supply port 231 is additionally formed, and a coolant supply capillary tube 251 may be additionally formed. Here, not only an auger type ice maker that produces flake ice by rotation of the auger 130 but also a drum type ice maker can be used.

That is, by forming the at least one refrigerant supply port 230, 231 and the refrigerant supply capillary tube 250, 251, the refrigerant can be additionally supplied to enhance the cooling effect. This is not limited to the refrigerant supply capillary tube but is also applicable to the refrigerant supply nozzle.

In particular, in a drum type ice maker, a plurality of capillaries or nozzles may be formed to enable instantaneous ice making. For example, when a plurality of capillaries or nozzles are formed, the reaching distance of the refrigerant is much reduced and the efficiency of evaporation can be increased. Furthermore, when a plurality of nozzles are used, there is no limitation on the position and the number of nozzles, and the evaporation effect can be further enhanced.

Accordingly, instantaneous ice-making is possible, and the performance of the ice-maker can be improved by increasing the number of capillaries or nozzles by increasing the evaporation efficiency by applying it to a large-sized ice maker such as an industrial ice maker.

As described above, according to the embodiments of the present invention, the coolant supply capillary tube is formed inside the coolant pipe, so that not only the lower portion of the inner tube into which the coolant flows but also the cooling efficiency at the upper portion where the coolant flows out is also excellent, Can be increased.

Further, the refrigerant pipe may be formed into a vertically elongated oval shape, and a refrigerant supply capillary tube or a refrigerant supply nozzle may be inserted therein to enhance the evaporation effect.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (20)

An inner pipe accommodating auger provided with an ice-making space portion therein and coaxially installed therein;
A refrigerant pipe in which a coolant inlet port and a coolant outlet port are formed at both ends in a spiral shape, which is recommended on an outer peripheral surface of the inner pipe;
An outer pipe housing the inner pipe and the refrigerant pipe; And
A refrigerant supply capillary tube for supplying a refrigerant to a space between the inner tube and the outer tube,
Wherein the refrigerant evaporating pipe is formed in the evaporator. The method according to claim 1,
The refrigerant pipe
Wherein the refrigerant outlet is formed at an upper end of the outer tube and the refrigerant inlet is formed at a lower end of the outer tube
Wherein the refrigerant evaporating pipe is formed in the evaporator. The method according to claim 1,
The refrigerant pipe
In which the cross section is an oval having a long vertical length
Wherein the refrigerant evaporating pipe is formed in the evaporator. 3. The method of claim 2,
The refrigerant supply capillary tube
At least one refrigerant supply port is formed at the upper end of the outer tube so that the refrigerant is supplied by the refrigerant supply port and an end is formed in the space between the inner pipe and the outer pipe so that the refrigerant is supplied to the inside by pressure Evaporated, then discharged to the refrigerant outlet
Wherein the refrigerant evaporating pipe is formed in the evaporator. 5. The method of claim 4,
The refrigerant supply capillary tube
The refrigerant pipe having a diameter smaller than the diameter of the refrigerant pipe and having an end bent through the refrigerant supply port to be accommodated in at least a part of the refrigerant pipe
Wherein the refrigerant evaporating pipe is formed in the evaporator. The method according to claim 1,
The refrigerant supply capillary tube
And a plurality of coolant supply nozzles formed in the inner tube, wherein the plurality of coolant supply nozzles supply the coolant to the space between the inner tube and the outer tube
Wherein the refrigerant evaporating pipe is formed in the evaporator. The method according to claim 1,
The ice-
Water is supplied to the inner wall of the inner tube to form ice, and the ice is cut by the rotation of the auger to be discharged to the outside
Wherein the refrigerant evaporating pipe is formed in the evaporator. A cylindrical inner tube;
A refrigerant pipe in which a coolant inlet port and a coolant outlet port are formed at both ends in a spiral shape, which is recommended on an outer peripheral surface of the inner pipe;
An outer tube which is formed in a cylindrical shape and houses the inner pipe and the refrigerant pipe, and which generates ice from the outer peripheral surface; And
A refrigerant supply capillary tube for supplying a refrigerant to a space between the inner tube and the outer tube,
Wherein the refrigerant evaporating pipe is formed in the evaporator. 9. The method of claim 8,
The inner pipe and the outer pipe are rotated by a driving motor with a certain portion in the water supply tank, the raw material supplied by the water supply tank is cooled on the outer peripheral surface of the outer pipe, and then cut using a cutting edge to produce powder ice
Wherein the refrigerant evaporating pipe is formed in the evaporator. 9. The method of claim 8,
The refrigerant pipe
In which the cross section is an oval having a long vertical length
Wherein the refrigerant evaporating pipe is formed in the evaporator. 9. The method of claim 8,
The refrigerant supply capillary tube
The refrigerant pipe having a diameter smaller than the diameter of the refrigerant pipe and being accommodated in at least a part of the refrigerant pipe formed in the space between the inner pipe and the outer pipe,
Wherein the refrigerant evaporating pipe is formed in the evaporator. 9. The method of claim 8,
The refrigerant supply capillary tube
An end is formed in a space between the inner pipe and the outer pipe, and the refrigerant is supplied to the inside by pressure to be evaporated and then discharged to the refrigerant outlet
Wherein the refrigerant evaporating pipe is formed in the evaporator. 9. The method of claim 8,
The refrigerant pipe
The inner tube and the outer tube are preferably formed in a space between the inner tube and the outer tube and are closely attached to the outer tube and spaced apart from the inner tube
Wherein the refrigerant evaporating pipe is formed in the evaporator. 9. The method of claim 8,
The refrigerant supply capillary tube
And a plurality of coolant supply nozzles formed in the inner tube, wherein the plurality of coolant supply nozzles supply the coolant to the space between the inner tube and the outer tube
Wherein the refrigerant evaporating pipe is formed in the evaporator. An inner pipe accommodating auger provided with an ice-making space portion therein and coaxially installed therein;
A spiral screw having an inner portion formed in a cylindrical shape to receive the inner pipe and having a helical thread formed on the outer peripheral surface thereof;
An outer tube for receiving the inner tube and the helical screw; And
A plurality of coolant supply nozzles formed in the inner tube for supplying coolant to a space between the inner tube and the outer tube,
Wherein the refrigerant evaporating pipe is formed in the evaporator. 16. The method of claim 15,
A refrigerant supply unit for supplying a refrigerant to the space between the outer tube and the helical screw,
And a refrigerant evaporating pipe is further formed on the evaporator. 16. The method of claim 15,
The spiral screw
Made of polyether ether ketone (PEEK) and injection molded
Wherein the refrigerant evaporating pipe is formed in the evaporator. A cylindrical inner tube;
A spiral screw having an inner portion formed in a cylindrical shape to receive the inner pipe and having a helical thread formed on the outer peripheral surface thereof;
An outer tube which is formed in a cylindrical shape and accommodates the inner tube and the helical screw, and which generates ice on the outer circumference; And
A plurality of coolant supply nozzles formed in the inner tube for supplying coolant to a space between the inner tube and the outer tube,
Wherein the refrigerant evaporating pipe is formed in the evaporator. 19. The method of claim 18,
A refrigerant supply unit for supplying a refrigerant to the space between the outer tube and the helical screw,
And a refrigerant evaporating pipe is further formed on the evaporator. 19. The method of claim 18,
The spiral screw
Made of polyether ether ketone (PEEK) and injection molded
Wherein the refrigerant evaporating pipe is formed in the evaporator.

Images