CN118654429A - A highly efficient ice making device for flake ice with crescent-shaped groove - Google Patents

Abstract

The invention relates to the technical field of ice making devices, and discloses a crescent groove flake ice efficient ice making device, which comprises a cabinet body and a cabinet door, wherein an ice grid is arranged on the inner wall surface of the cabinet body, a water outlet is arranged above the ice grid, an ice filtering groove is arranged below the ice grid, a water storage tank is arranged below the ice filtering groove, a refrigerator is arranged outside the water storage tank and below an inclined opening of the ice filtering groove, a condensing pipe is transversely arranged on the back surface of the ice grid and is sequentially communicated from top to bottom, the condensing pipe is fixed on the back surface of the ice grid in a welding mode, welding spots are formed, a first heat pipe and a second heat pipe are respectively arranged on the upper side and the lower side of each welding spot, the first heat pipe and the second heat pipe are internally communicated, a closed pipeline is integrally filled with volatile liquid, the volatile liquid evaporates when high-temperature hot air is introduced into the condensing pipe, the evaporated gas is converged in the first heat pipe, the temperature of the first heat pipe is higher through the first heat pipe, the upper part of the ice is changed into a sunken shape of the ice, the upper part of the ice is increased, and demoulding is accelerated.

Description

A highly efficient ice making device for flake ice with crescent-shaped groove

Technical Field

The invention relates to the technical field of ice making devices, in particular to a high-efficiency ice making device for flake ice with a crescent-shaped groove.

Background Art

The crescent ice machine is a professional equipment, mainly used to produce unique crescent-shaped ice cubes. Its working principle is based on advanced refrigeration technology, which is achieved by precisely controlling the cooling process of water. First, the ice machine introduces water into a special evaporator, and the temperature is lowered by circulating refrigerant inside the ice grid. As the temperature gradually drops, the water begins to freeze and forms a crescent shape under the specific structure of the ice grid. The crescent ice machine has an intelligent control system that can accurately monitor and adjust key parameters such as temperature, pressure and time in the ice-making process to ensure that the quality and shape of the ice cubes achieve the best effect. At the same time, the machine is also equipped with an efficient cooling system and a protective film. Temperature materials are used to improve ice-making efficiency and reduce energy consumption. In addition to its unique ice-making function, the crescent ice machine is also easy to operate and maintain. Users only need to use a simple operation interface to realize automatic control of the ice-making process, and the cleaning and maintenance inside the machine are also relatively convenient, reducing the user's usage cost and time cost. The crescent ice machine is widely used in commercial places such as restaurants, beverage shops, and hotels. The crescent-shaped ice cubes it produces are not only beautiful, but also can provide better cooling effect, bringing customers a pleasant dining experience. At the same time, these devices also meet the requirements of modern commercial places for energy conservation and environmental protection, and help promote the sustainable development of the industry.

When the crescent ice machine is making ice, the temperature of the evaporating plate can reach minus 7 degrees Celsius. The ice-making process takes about 20 minutes. Compared with the cube ice machine, the ice-making speed is slower. After completing the ice-making, the ice machine will produce solid and thicker crescent-shaped ice cubes. The mass of this type of ice cube is 30% larger than that of hollow ice. Therefore, it can keep the beverage at zero degrees for a longer time in the beverage. The reason why the crescent ice can adhere to the vertical ice grid wall during the freezing process is because there is an intermolecular interaction between the ice cube and the ice grid wall. These intermolecular forces make the ice cube still adhere to the wall even if the contact part with the wall melts in time. In this process, further melting is required, resulting in excessive consumption of resources. At the same time, because the heating time is too long, the temperature rise of the ice grid is greater than that of the conventional cube ice, which makes the time required for the ice grid to cool to the condensation temperature during the ice-making process also increase, affecting the ice-making efficiency of the ice maker and the continuous ice-making efficiency of the ice maker.

Summary of the invention

(I) Technical problems to be solved: In view of the shortcomings of the prior art, the present invention provides a highly efficient ice-making device for flake ice with crescent-shaped grooves, which has the advantage of rapid demoulding of ice cubes and solves the problem of excessive waste of resources in the process of demoulding ice cubes in the ice-making machine.

(II) Technical solution: To achieve the purpose of rapid demolding of ice cubes, the present invention provides the following technical solution: a highly efficient ice-making device for flake ice with crescent-shaped grooves, comprising a cabinet body and a cabinet door, an ice tray is arranged on the inner wall of the cabinet body, a water outlet is arranged above the ice tray, a filter groove inclined downward and having a small notch array on the surface is arranged below the ice tray, a water storage tank is arranged below the filter groove, a storage ice bin is arranged outside the water storage tank and below the inclined opening of the filter groove, water in the water storage tank is transported to the water outlet by a water pump, the front of the ice tray is separated by a longitudinal long groove, the water flow sprayed by the water outlet flows in the long groove, protrusions for separating ice cubes are arranged longitudinally in the long groove, the ice tray between the upper and lower protrusions constitute a single ice-making area, a condenser tube adapted to the ice-making area is arranged on the back of the ice tray, a variable temperature control unit is arranged on the back of each ice-making area of the ice tray, and in the de-icing and heating state of the condenser tube, the variable temperature control unit controls the temperature of the upper part of the ice-making area to be higher than that of the lower part.

Preferably, the temperature variable control unit is specifically configured such that a contact surface between the condensing tube and the upper portion of the ice-making area is larger than a contact surface between the condensing tube and the lower portion.

Preferably, the temperature change control unit is specifically configured such that the flow rate of the refrigerant in the condenser tube flowing through the upper portion of the ice-making area is greater than the flow rate of the refrigerant flowing through the lower portion of the ice-making area.

Preferably, the pipe section of the condenser pipe passing through the upper part of the ice-making area is larger than the pipe section passing through the lower part of the ice-making area.

Preferably, the temperature change control unit is specifically configured such that a heat pipe is connected between the lower portion of the condensation pipe at the back of the ice-making area and the upper portion of the back side of the ice-making area.

Preferably, a first heat pipe and a second heat pipe are respectively provided on the upper side of the back of the ice-making area and the lower side of the condenser, which are parallel to the condenser. The first heat pipe and the second heat pipe are internally connected and are a closed pipeline as a whole, and the pipeline is filled with volatile liquid.

Preferably, the length of the first heat pipe and the second heat pipe is consistent with the length of the ice tray, and they are arranged horizontally along the condenser tube, with a spacing corresponding to the long grooves on the front of the ice tray. This method has higher heat transfer efficiency and will not cause excessive internal temperature changes due to the excessive length of the first heat pipe and the second heat pipe.

Preferably, protrusions are arranged in a vertically uniform array in the long groove on the front side of the ice tray, and one protrusion is provided on the upper and lower sides respectively at the position corresponding to the condenser. The protrusions can divide the freezing area to prevent the ice cubes from sticking together and changing their shape when the ice cubes are too large. The ice tray is generally in the shape of a rounded rectangle and has a conical notch in the middle. Through the notch, most of the water flowing out of the water outlet can be gathered at the middle notch, increasing the water flow passing through the middle, increasing the impact force, and more effectively destroying the force between the ice cubes and the ice tray, thereby accelerating the melting of the ice cubes in contact with each other.

(III) Beneficial effects: Compared with the prior art, the present invention provides a high-efficiency ice-making device for flake ice with a crescent-shaped groove, which has the following beneficial effects: 1. In the high-efficiency ice-making device for flake ice with a crescent-shaped groove, a heat pipe is connected between the lower part of the condenser on the back of the ice-making area and the upper part of the back side of the ice-making area, and the heat pipe is filled with a volatile liquid. The volatile liquid evaporates when the condenser is de-iced and heated, and absorbs a large amount of heat. Part of the heat originally transferred to the lower part of the ice-making area is absorbed by the volatile liquid in the heat pipe, so that the lower half of the ice condensed on the ice-making area melts slowly. After evaporation, the gas gathers in the heat pipe on the upper part of the back side of the ice-making area, increasing the heating area above the ice. The temperature of the upper half of the area where the ice is in contact with the ice grid rises faster than that of the lower half, so that the upper half of the ice melts faster, and a concave shape is formed on the upper half of the ice. When water flows out of the water outlet to help the ice demold, the liquid can be gathered on the contact surface between the ice and the ice grid, that is, The depression above the ice cube accelerates the melting speed between the ice cube and the ice grid. At the same time, the water flow from the water outlet is used to impact the depression of the ice cube, which can reduce the force between the ice cube and the ice grid and speed up the demoulding process. At the same time, because the upper part of the ice cube melts faster, the center of gravity of the ice cube moves toward the outer side and downward, and because the ice cube in the lower part melts slowly, a certain resistance will be generated. Under the influence of gravity, the upper part of the ice cube falls off first, causing the ice cube as a whole to roll downward. At the same time, the upper part leaves the surface of the ice grid first, increasing the contact area with air and water flow, so that the lower part can also melt faster. In addition, the effect of gravity on the lower part of the ice cube is increased, and the ice cube as a whole can fall off the ice grid more easily, which greatly increases the demoulding speed of the ice cube and reduces the demoulding time. In addition, the demoulding time is reduced, and the time for hot air to be introduced into the condenser is reduced, so that the time required for cooling the ice grid during the next condensation is reduced, so that the overall continuity of ice forming and demoulding is better and the overall time is shorter.

2. The high-efficiency ice-making device with crescent-shaped groove flake ice has an ice tray that is a rounded rectangular shape as a whole and is provided with a conical notch in the middle. Through the notch, most of the water flowing out of the water outlet can be gathered at the middle notch, increasing the water flow flowing through the middle. This increases the impact force when the water blows the upper depression of the ice cubes when demolding, more effectively destroys the force between the ice cubes and the ice tray, and accelerates the melting of the contacting parts of the ice cubes. At the same time, the notch cannot be too small to avoid too fast water flow when the ice cubes are condensing, resulting in reduced ice condensation efficiency.

3. The high-efficiency ice-making device for flake ice with a crescent-shaped groove has protrusions arranged in a vertically uniform array in the long groove on the front side of the ice tray. The protrusions are respectively provided on the upper and lower sides at the positions corresponding to the condenser tube. The protrusions can divide the freezing area to prevent the ice cubes from sticking together and changing their shapes when the ice cubes are too large. The ice tray is a rounded rectangular shape as a whole, and has a conical notch in the middle. Through the notch, most of the water flowing out of the water outlet can be gathered at the middle notch, increasing the water flow flowing through the middle, increasing the impact force, and more effectively destroying the force between the ice cubes and the ice tray, accelerating the melting of the contacting parts of the ice cubes.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of the present invention.

FIG. 2 is a front view of the cabinet of the present invention.

FIG. 3 is a schematic diagram of the ice tray structure of the present invention.

FIG. 4 is a schematic diagram of the back structure of the ice tray in the first embodiment of the present invention.

FIG. 5 is a schematic diagram of the back structure of an ice tray in the second embodiment of the present invention.

FIG. 6 is a schematic diagram of the convex shape of the present invention.

FIG. 7 is a schematic diagram of ice melting according to the present invention.

FIG8 is a schematic diagram of the internal structure of the present invention.

FIG. 9 is a schematic diagram of an ice tray in the third embodiment of the present invention.

FIG. 10 is a schematic diagram of an ice tray in the third embodiment of the present invention.

In the figure: 1, cabinet body; 2, ice tray; 3, ice filter trough; 4, ice storage bin; 5, exhaust dehumidification device; 11, cabinet door; 21, protrusion; 31, water outlet; 32, water storage tank; 33, water adding trough; 51, air duct; 201, condenser; 202, first heat pipe; 203, second heat pipe.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Embodiment 1: Please refer to Figures 1 to 4, a high-efficiency ice-making device for flake ice with a crescent-shaped groove, including a cabinet body 1 and a cabinet door 11, an ice tray 2 is arranged on the inner wall of the cabinet body 1, a water outlet 31 is arranged above the ice tray 2, and a water filter 3 is arranged below the ice tray 2, which is inclined downward and has a small notch array on the surface, a water storage tank 32 is arranged below the ice filter 3, and an ice storage ice 4 is arranged outside the water storage tank 32 and below the oblique opening of the ice filter 3, and the water in the water storage tank 32 is transported to the water outlet 31 by a water pump The front of the ice tray 2 is separated by a vertical long groove, and the water sprayed by the water outlet 31 flows downward in the long groove. The long groove is longitudinally arranged with protrusions 21 for separating ice cubes. The ice tray 2 between the two upper and lower protrusions 21 constitutes a single ice-making area. A plurality of condensing tubes 201 are horizontally arranged on the back of the ice tray 2. A variable temperature control unit is arranged on the back of each ice-making area of the ice tray 2. When the condensing tube 201 is in the de-icing and heating state, the variable temperature control unit controls the temperature of the upper part of the ice-making area to be higher than that of the lower part.

The water outlet 31 repeatedly pours the water in the water storage tank 32 onto the ice grid 2. A low-temperature refrigerant flows in the condenser 201. The condenser 201 continuously absorbs the temperature on the ice grid 2, so that the surface temperature of the ice grid 2 reaches the condensation point of the water. The flowing water flows on the ice grid 2 and continuously reduces its temperature and flows into the water storage tank 32. The water in the water storage tank 32 is then transported to the water outlet 31 through a water pump. When the temperature of the flowing water reaches the condensation point, each ice-making area on the surface of the ice grid 2 begins to freeze and continues to increase.

When ice crescents of sufficient size are condensed on the ice tray 2, the reversing valve provided in the device is used to reverse the flow of high-temperature refrigerant in the condensing tube 201 on the back of the ice tray 2 to demold the ice crescents condensed on the surface of the ice tray 2. Specifically, the temperature change control unit is a heat pipe connected between the lower part of the condensing tube 201 on the back of the ice making area and the upper part of the back side of the ice making area.

Referring to FIG. 7 , the upper side of the back of the ice-making area and the lower side of the condenser 201 are respectively provided with a first heat pipe 202 and a second heat pipe 203, which are parallel to the condenser 201, and the condenser 201, the first heat pipe 202 and the second heat pipe 203 are in contact with the ice-making area through a contact surface (i.e., the shaded part in the figure), the first heat pipe 202 and the second heat pipe 203 are internally connected, and the whole is a closed pipeline, and the pipeline is filled with a volatile liquid, and the volatile liquid evaporates when a high-temperature refrigerant is introduced into the condenser 201, and the evaporated gas gathers in the first heat pipe 202. 02, part of the heat originally transferred to the lower part of the ice-making area is absorbed by the volatile liquid in the heat pipe, so that the lower part of the ice condensed on the ice-making area melts slowly, and enters the first heat pipe 202 at the upper back side of the ice-making area, and transfers its own heat to the upper part of the ice-making area of the ice tray 2 together with the condenser 201, thereby increasing the heating area above the ice. The temperature of the upper part of the ice in contact with the ice tray 2 rises faster than that of the lower part, so that the upper part of the ice melts faster, forming the solid line shape of the ice shown in FIG7, and the upper part of the ice forms a concave shape. When water flows out of the water outlet 31 to help the ice cubes to be demolded, the liquid can be gathered on the contact surface between the ice cube and the ice tray, that is, in the concave part above the ice cube, thereby accelerating the melting speed between the ice cube and the ice tray 2. At the same time, the water flowing out of the water outlet 31 impacts the concave part of the ice cube, thereby reducing the force between the ice cube and the ice tray 2 and accelerating the demolding process. At the same time, because the upper part of the ice cube melts faster, the center of gravity of the ice cube moves toward the outer side and downward, and because the lower part of the ice cube melts slowly, it will produce a certain resistance. Under the influence of gravity, the upper part of the ice cube The upper half falls off first, causing the ice cube to roll downward as a whole. At the same time, the upper half leaves the surface of the ice tray 2 first, increasing the contact area with air and water flow, so that the lower half can also melt faster. In addition, the effect of gravity on the lower half of the ice cube is increased, and the ice cube as a whole can fall off the ice tray more easily, which greatly increases the demolding speed of the ice cube and reduces the demolding time. In addition, the demolding time is reduced, and the time for hot air to be introduced into the condenser 201 is reduced, so that the time required for cooling the ice tray 2 during the next condensation is reduced, so that the overall continuity of ice formation and demolding is better and the overall time is shorter.

After falling off, the ice cubes follow the inclination angle of the ice filter trough 3 and fall into the ice storage bin 4 for storage, which is convenient for retrieval. When the ice tray 2 is re-frozen, the low-temperature refrigerant is introduced into the condenser 201, and the gas in the first heat pipe 202 condenses and flows back into the second heat pipe 203. At this time, the first heat pipe 202 and the second heat pipe 203 are equivalent to ordinary copper pipes, which increases the heat conduction area with the ice tray.

Referring to FIG. 4 , the length of the first heat pipe 202 and the second heat pipe 203 is consistent with the length of the ice tray 2. The first heat pipe 202 and the second heat pipe 203 are interconnected at both ends to form a loop. After the volatile liquid in the second heat pipe 203 evaporates due to heat, it flows into the first heat pipe 202 from one end. In the first heat pipe 202, the hot steam flows to the other end, continuously releasing heat, and then condenses into liquid, and flows back to the second heat pipe 203 from the other end connection to realize a cycle of changes. Compared with only one end being connected, the internal pressure is more stable. In an environment of alternating hot and cold, the stability is relatively higher due to the smaller pressure fluctuation. At the same time, this connection method has lower manufacturing costs and simpler welding.

Referring to FIG. 6 , there are protrusions 21 arranged in a vertically uniform array in the long groove on the front side of the ice tray 2. The protrusions 21 are respectively arranged on the upper and lower sides of the corresponding position of the condenser 201. The protrusions 21 can divide the freezing area to prevent the ice cubes from sticking together and changing their shapes when they are too large. At the same time, the ice tray 2 is a rounded rectangular shape as a whole, and a conical notch is provided in the middle. Through the notch, most of the water flowing out of the water outlet 31 can be gathered at the middle notch, increasing the water flow flowing through the middle, so that this part of the water flow increases the impact force when blowing the upper part of the depression when the ice cubes are demolded, more effectively destroying the force between the ice cubes and the ice tray 2, and accelerating the melting of the contacting part of the ice cubes. At the same time, the notch cannot be too small to avoid too fast water flow when the ice cubes are condensed, resulting in reduced ice condensation efficiency.

Referring to FIG. 8 , a water adding tank 33 for adding water is provided above the water outlet 31 .

Embodiment 2: Please refer to FIGS. 1 to 3 and 5. A highly efficient ice-making device for flake ice with a crescent-shaped groove includes a cabinet body 1 and a cabinet door 11. An ice tray 2 is provided on the inner wall of the cabinet body 1. A water outlet 31 is provided above the ice tray 2 to spray water on the outer surface of the ice tray 2. An ice filter 3 is provided below the ice tray 2, which is inclined downward and has a surface array of small notches. A water storage tank 32 is provided below the ice filter 3. An ice storage bin 4 is provided outside the water storage tank 32 and below the oblique opening of the ice filter 3. Water in the water storage tank 32 is transported to the water outlet 31 by a water pump. In the figure, the front of the ice tray 2 is separated by a vertical long groove, and the water sprayed by the water outlet 31 flows downward in the long groove. The long groove is longitudinally arranged with protrusions 21 for separating ice cubes. The ice tray 2 between the two upper and lower protrusions 21 constitutes a single ice-making area. A plurality of condensing tubes 201 are horizontally arranged on the back of the ice tray 2. A variable temperature control part is arranged on the back of each ice-making area of the ice tray 2. When the condensing tube 201 is in the de-icing and heating state, the variable temperature control part controls the temperature of the upper part of the ice-making area to be higher than that of the lower part.

The water outlet 31 repeatedly pours the water in the water storage tank 32 onto the ice grid 2. A low-temperature refrigerant flows in the condenser 201. The condenser 201 continuously absorbs the temperature on the ice grid 2, so that the surface temperature of the ice grid 2 reaches the condensation point of the water. The flowing water flows on the ice grid 2 and continuously reduces its temperature and flows into the water storage tank 32. The water in the water storage tank 32 is then transported to the water outlet 31 through a water pump. When the temperature of the flowing water reaches the condensation point, each ice-making area on the surface of the ice grid 2 begins to freeze and continues to increase.

When ice crescents of sufficient size are condensed on the ice tray 2, the reversing valve provided in the device is used to reverse the flow of high-temperature refrigerant in the condensing tube 201 on the back of the ice tray 2 to demold the ice crescents condensed on the surface of the ice tray 2. Specifically, the temperature change control unit is a heat pipe connected between the lower part of the condensing tube 201 on the back of the ice making area and the upper part of the back side of the ice making area.

Referring to FIG. 7 , the upper side of the back of the ice-making area and the lower side of the condenser 201 are respectively provided with a first heat pipe 202 and a second heat pipe 203, which are parallel to the condenser 201, and the condenser 201, the first heat pipe 202 and the second heat pipe 203 are in contact with the ice-making area through a contact surface (i.e., the shaded part in the figure), the first heat pipe 202 and the second heat pipe 203 are internally connected, and the whole is a closed pipeline, and the pipeline is filled with a volatile liquid, and the volatile liquid evaporates when a high-temperature refrigerant is introduced into the condenser 201, and the evaporated gas gathers in the first heat pipe 202. 02, part of the heat originally transferred to the lower part of the ice-making area is absorbed by the volatile liquid in the heat pipe, so that the lower part of the ice condensed on the ice-making area melts slowly, and enters the first heat pipe 202 at the upper back side of the ice-making area, and transfers its own heat to the upper part of the ice-making area of the ice tray 2 together with the condenser 201, thereby increasing the heating area above the ice. The temperature of the upper part of the ice in contact with the ice tray 2 rises faster than that of the lower part, so that the upper part of the ice melts faster, forming the solid line shape of the ice shown in FIG7, and the upper part of the ice forms a concave shape. When water flows out of the water outlet 31 to help the ice cubes to be demolded, the liquid can be gathered on the contact surface between the ice cube and the ice tray, that is, in the concave part above the ice cube, thereby accelerating the melting speed between the ice cube and the ice tray 2. At the same time, the water flowing out of the water outlet 31 impacts the concave part of the ice cube, thereby reducing the force between the ice cube and the ice tray 2 and accelerating the demolding process. At the same time, because the upper part of the ice cube melts faster, the center of gravity of the ice cube moves toward the outer side and downward, and because the lower part of the ice cube melts slowly, it will produce a certain resistance. Under the influence of gravity, the upper part of the ice cube The upper half falls off first, causing the ice cube to roll downward as a whole. At the same time, the upper half leaves the surface of the ice tray 2 first, increasing the contact area with air and water flow, so that the lower half can also melt faster. In addition, the effect of gravity on the lower half of the ice cube is increased, and the ice cube as a whole can fall off the ice tray more easily, which greatly increases the demolding speed of the ice cube and reduces the demolding time. In addition, the demolding time is reduced, and the time for hot air to be introduced into the condenser 201 is reduced, so that the time required for cooling the ice tray 2 during the next condensation is reduced, so that the overall continuity of ice formation and demolding is better and the overall time is shorter.

After falling off, the ice cubes follow the inclination angle of the ice filter trough 3 and fall into the ice storage bin 4 for storage, which is convenient for retrieval. When the ice tray 2 is re-frozen, the low-temperature refrigerant is introduced into the condenser 201, and the gas in the first heat pipe 202 condenses and flows back into the second heat pipe 203. At this time, the first heat pipe 202 and the second heat pipe 203 are equivalent to ordinary copper pipes, which increases the heat conduction area with the ice tray.

5 , the length of the first heat pipe 202 and the second heat pipe 203 are the same as the width of the long groove on the front side of the ice tray 2, and are arranged horizontally along the condenser tube 201, with the spacing corresponding to the long groove on the front side of the ice tray 2. This method has higher heat transfer efficiency and will not cause excessive internal temperature changes due to the excessive length of the first heat pipe 202 and the second heat pipe 203.

Working principle: The water in the water storage tank 32 is repeatedly poured onto the ice tray 2 through the water outlet 31. When the ice tray 2 is condensed with a crescent ice of a sufficient size, the high-temperature refrigerant is circulated in the condenser tube 201 on the back of the ice tray 2 through the reversing valve provided in the device to demould the crescent ice condensed on the surface of the ice tray 2. The first heat pipe 202 and the second heat pipe 203 are provided on the upper and lower sides of the joint between the condenser tube 201 and the ice tray 2. The first heat pipe 202 and the second heat pipe 203 are connected and are closed pipes. The inside is filled with volatile liquids such as alcohol. When the condenser tube 201 is heating, the liquid in the second heat pipe 203 evaporates and absorbs A large amount of heat is transferred to the lower part of the ice making area of the ice tray 2 by the liquid in the second heat pipe 203, so that the lower part of the condensed ice melts more slowly. Since the first heat pipe 202 above is connected to the second heat pipe 203, the high-temperature steam evaporated by the second heat pipe 203 flows into the first heat pipe 202, and transfers its own heat together with the heat from the upper part of the condenser 201 to the upper part of the ice making area of the ice tray 2, thereby increasing the heating area above the ice. The temperature of the upper part of the ice that contacts the ice tray 2 rises faster than that of the lower part, so that the upper part of the ice melts faster, forming The solid line-shaped ice cube shown in FIG7 has a concave shape formed in the upper part of the ice cube. When water flows out of the water outlet 31 to help the ice cube to be demolded, the liquid can be gathered on the contact surface between the ice cube and the ice grid, that is, in the concave part above the ice cube, thereby accelerating the melting speed between the ice cube and the ice grid 2. At the same time, the reason why the ice cube adheres to the surface of the ice grid 2 is that there is an intermolecular force between the ice cube and the wall surface of the ice grid 2. This intermolecular force makes the contact part between the ice cube and the wall surface of the ice grid 2 melt and also makes the ice cube adhere to the wall surface. The water flow from the water outlet 31 can be used to melt the ice cube. Impacting the concave part of the ice cube can reduce the force between the ice cube and the ice tray 2 and speed up the demoulding process. At the same time, because the upper part of the ice cube melts faster, the center of gravity of the ice cube moves toward the outer side and downward, and because the lower part of the ice cube melts slowly, it will produce a certain resistance. Under the influence of gravity, the upper part of the ice cube falls off first, causing the ice cube as a whole to roll downward. At the same time, the upper part leaves the surface of the ice tray 2 first, increasing the contact area with air and water flow, so that the lower part can also melt faster, and the effect of gravity on the lower part of the ice cube is increased, so that the ice cube as a whole can fall off from the ice tray more easily.

Embodiment 3: Referring to FIGS. 1 to 3, a high-efficiency ice-making device for flake ice with a crescent-shaped groove includes a cabinet body 1 and a cabinet door 11. An ice tray 2 is provided on the inner wall of the cabinet body 1. A water outlet 31 capable of spraying water on the outer surface of the ice tray 2 is provided above the ice tray 2. An ice filter 3 inclined downward and having an array of small notches on the surface is provided below the ice tray 2. A water storage tank 32 is provided below the ice filter 3. An ice storage bin 4 is provided outside the water storage tank 32 and below the oblique opening of the ice filter 3. Water in the water storage tank 32 is transported to the water outlet 31 by a water pump. The front of the ice tray 2 is separated by a vertical long groove, and the water sprayed by the water outlet 31 flows downward in the long groove. The long groove is longitudinally arranged with protrusions 21 for separating ice cubes. The ice tray 2 between the two upper and lower protrusions 21 constitutes a single ice-making area. A plurality of condensing tubes 201 are horizontally arranged on the back of the ice tray 2. A variable temperature control part is arranged on the back of each ice-making area of the ice tray 2. When the condensing tube 201 is in the de-icing and heating state, the variable temperature control part controls the temperature of the upper part of the ice-making area to be higher than that of the lower part.

When ice crescents of sufficient size are condensed on the ice tray 2 , the reversing valve provided in the device is used to reverse the flow of high-temperature refrigerant in the condensing tube 201 on the back of the ice tray 2 to demould the ice crescents condensed on the surface of the ice tray 2 .

Referring to Figure 9, the temperature change control unit is specifically that the contact surface between the condenser 201 and the upper part of the ice-making area is larger than that at the lower part. The shaded part in the figure is the contact surface, which can be realized by welding or the like. By increasing the contact surface area at the upper part, the heat transfer area is increased, and the melting of the upper part of the ice cubes is accelerated. It can also be achieved in the above embodiment that, in the de-icing and heating state, the temperature of the upper part of the ice-making area is higher than that of the lower part.

The temperature of the upper part of the ice cube in contact with the ice tray 2 rises faster than that of the lower part, so that the upper part of the ice cube melts faster, forming an ice cube in the shape of a solid line as shown in FIG. 7 , in which a depression is formed in the upper part of the ice cube. For ice cubes of this shape, when water flows out of the water outlet 31 to help the ice cube to be demolded, the liquid can be gathered on the contact surface between the ice cube and the ice tray, that is, in the depression above the ice cube, thereby accelerating the melting speed between the ice cube and the ice tray 2. At the same time, the water flowing out of the water outlet 31 is used to impact the depression of the ice cube, which can reduce the force between the ice cube and the ice tray 2 and accelerate the demolding process. At the same time, because the upper part of the ice cube melts faster, the center of gravity of the ice cube is moved to the outside and downward. The ice cubes move, and because the lower half of the ice cubes melt slowly, a certain resistance will be generated. Under the influence of gravity, the upper half of the ice cubes fall off first, causing the ice cubes to roll downward as a whole. At the same time, the upper half of the ice cubes leave the surface of the ice tray 2 first, increasing the contact area with air and water flow, so that the lower half of the ice cubes can also melt faster. In addition, the effect of gravity on the lower half of the ice cubes is increased, and the ice cubes as a whole can fall off the ice tray more easily, which greatly increases the demolding speed of the ice cubes and reduces the demolding time. In addition, the demolding time is reduced, and the time for hot air to be introduced into the condenser 201 is reduced, so that the time required for cooling the ice tray 2 is reduced when the ice cubes condense next time, so that the overall continuity of ice formation and demolding is better and the overall time is shorter.

Referring to Figure 10, in another implementation, the variable temperature control unit is specifically that the flow rate of the refrigerant in the condenser tube 201 flowing through the upper part of the ice-making area is greater than the flow rate flowing through the lower part of the ice-making area. The shaded part in the figure is the contact surface, and the contact area between the upper and lower parts is the same. By changing the shape of the condenser tube 201, the flow rate of the refrigerant flowing through is changed, so that the upper part melts faster.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (9)

1. The utility model provides a crescent recess slice ice high-efficient ice making device, including the cabinet body (1) and cabinet door (11), be equipped with ice tray (2) on the internal wall of the cabinet body (1), ice tray (2) top is equipped with can spray delivery port (31) at ice tray (2) surface with rivers, ice tray (2) below is equipped with slope downwards and surface array has ice straining groove (3) of tiny notch, ice straining groove (3) below is equipped with storage water tank (32), storage water tank (32) are outer and be equipped with refrigerator (4) below ice straining groove (3) bevel connection, the water in storage water tank (32) transports to delivery port (31) through the water pump in, ice tray (2) openly are separated by fore-and-aft elongated slot, the rivers that delivery port (31) sprayed flow in the slot, longitudinal arrangement has separated ice making ice protruding (21) in the elongated slot, ice tray (2) between two vertically ice tray (21) constitute single ice making region, its characterized in that: the back of the ice grid (2) is provided with a condensing pipe (201) which is matched with the ice making areas, the back of each ice making area of the ice grid (2) is provided with a temperature change control part, and the temperature change control part controls the temperature of the upper part of the ice making area to be higher than the temperature of the lower part of the ice making area under the ice removing and heating state of the condensing pipe (201).

2. The crescent groove flake ice high-efficiency ice making device according to claim 1, wherein: the temperature change control part is characterized in that the contact surface between the condensing pipe (201) and the upper part of the ice making area is larger than that between the condensing pipe and the lower part of the ice making area.

3. The crescent groove flake ice high-efficiency ice making device according to claim 1, wherein: the temperature change control part is characterized in that the flow rate of the refrigerant flowing through the upper part of the ice making area in the condensing pipe (201) is larger than the flow rate of the refrigerant flowing through the lower part of the ice making area.

4. A crescent groove flake ice high efficiency ice making apparatus as claimed in claim 3, wherein: the cross section of the pipeline of the condensing pipe (201) passing through the upper part of the ice making area is larger than that of the pipeline passing through the lower part of the ice making area.

5. The crescent groove flake ice high-efficiency ice making device according to claim 1, wherein: the temperature change control part is specifically characterized in that a heat pipe is connected between the lower part of a condensing pipe (201) at the back of the ice making area and the upper part of the back side of the ice making area.

6. The crescent groove flake ice high-efficiency ice making device of claim 5, wherein: the upper side at the back of the ice making area and the lower side of the condensing pipe (201) are respectively provided with a first heat pipe (202) and a second heat pipe (203), the first heat pipe (202) and the second heat pipe (203) are parallel to the condensing pipe (201), the first heat pipe (202) and the second heat pipe (203) are internally communicated, the whole is a closed pipeline, and volatile liquid is filled in the pipeline.

7. The crescent groove flake ice high-efficiency ice making device of claim 6, wherein: the lengths of the first heat pipe (202) and the second heat pipe (203) are consistent with the length of the ice grid (2).

8. The crescent groove flake ice high-efficiency ice making device of claim 6, wherein: the two ends of the first heat pipe (202) and the second heat pipe (203) are mutually communicated to form a loop.

9. The crescent groove flake ice high efficiency ice making device of any one of claims 1-8, wherein: the vertical uniform array has protruding (21) in ice tray (2) openly elongated slot, protruding (21) are equipped with one respectively in the upper and lower side of condenser pipe (201) corresponding position, ice tray (2) are whole to be the fillet rectangle form to be equipped with a conical breach in the centre department.