Shaved ice maker

Abstract

To provide a shaved ice making device that can be made small, lightweight, and quiet with low vibration, while also saving power, and can be flexibly adapted for outdoor use, etc. [Solution] Shaved ice making device 2 comprises device main body 4, a pair of left and right protrusions 6a, 6b protruding horizontally from the upper front surface of device main body 4, drum 8 rotatably supported between protrusions 6a, 6b and driven to rotate by a motor, liquid supply mechanism 10 that supplies liquid to the surface of drum 8, a cooling mechanism that cools drum 8 to form an ice layer on the surface of drum 8, and cutter 12 that scrapes off the ice layer as drum 8 rotates. The cooling mechanism has a Peltier module placed on the inner surface of drum 8, and the motor and Peltier module receive power from rechargeable battery 20 that is detachably placed on the back of device main body 4.

Description

[Technical Field]

[0001] The present invention relates to a shaved ice making device, and more particularly to a shaved ice making device that forms a thin layer of ice on the surface of a drum and then scrapes off the ice layer with a cutter. [Background technology]

[0002] Patent Document 1 discloses a rapid-cooling shaved ice manufacturing device that introduces a refrigerant from a rapid-cooling means into an ice layer-forming rotating drum that is rotated with part of its surface immersed in shaved ice water to form an ice layer on the drum surface, and then scrapes the formed ice layer off with a scraping blade and serves it in a container placed on a turntable. Similar to the refrigeration cycle of a refrigerator, the rapid-cooling means is configured to circulate the refrigerant using a compressor and heat exchange means, and is powered by a commercial power outlet.

[0003] Various other shaved ice making devices of this type have been proposed, but although there are differences in the method of shaving the ice layer and the way the ice is served in the container, the configuration of the rapid cooling means and the power supply method are generally similar. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] International Publication No. WO2020 / 044423 Summary of the Invention [Problem to be solved by the invention]

[0005] As mentioned above, a cooling configuration similar to that of a refrigerator's refrigeration cycle inevitably leads to problems such as the device becoming larger and heavier, vibrations and noise caused by the compressor's operation, and increased running costs due to power consumption.In addition, since it uses a commercial power outlet, it cannot be flexibly used for outdoor events, mobile sales, etc.

[0006] The present invention has been made in consideration of the above points, and its purpose is to provide a shaved ice making device that is small, lightweight, and quiet with low vibration, as well as energy-saving, and can be flexibly adapted for outdoor use, etc. [Means for solving the problem]

[0007] In order to achieve the above object, the shaved ice making device (2) of the present invention comprises a drum (8) rotated by a motor (36), a liquid supply mechanism (10) that supplies an ice layer forming liquid (L) to the surface of the drum (8), a cooling mechanism (62) that cools the drum (8) to form an ice layer on the surface of the drum (8), and a cutter (12) that scrapes off the ice layer formed on the surface of the drum (8) as the drum rotates, and the cooling mechanism (62) is characterized by including a plurality of Peltier modules (64) arranged on the inner surface of the drum (8).

[0008] According to the shaved ice making device of the present invention, the cooling configuration utilizing the Peltier effect eliminates the need for the conventional refrigeration cycle, thereby achieving a smaller, lighter, and quieter device with less vibration, as well as saving power and contributing to reduced running costs.

[0009] In the shaved ice making apparatus (2), the cooling mechanism (62) may include a cooling plate (66) fixed to the cooling surface of the Peltier module (64) and having a curved surface that fits the inner surface of the drum (8), a heat-dissipating cylinder (68) having a plurality of flat surfaces (68a) to which the heat-dissipating surface of the Peltier module (64) is fixed, and a suction fan (72) that exhausts the air inside the heat-dissipating cylinder (68) to the outside of the drum (8). This allows efficient heat dissipation from the Peltier module, thereby improving the cooling efficiency of the drum (ice layer formation efficiency).

[0010] Furthermore, the shaved ice making device (2) may be configured such that the power source supplying power to the motor (36) and the Peltier module (64) is a rechargeable battery (20) that is detachable from the device body (4). This eliminates the need for a commercial power outlet, making it suitable for outdoor events and mobile sales.

[0011] In the shaved ice making apparatus (2), the Peltier module (64) may be supplied with power via a slip ring (82). This eliminates the need to provide a power source for the rotating system, such as the drum, and thus simplifies the configuration.

[0012] The shaved ice making device (2) may also be configured to include a serving container (24) for receiving the ice pieces shaved by the cutter (12) and a container drive mechanism (16) for moving the serving container (24). This allows for uniform serving and maintains consistent product quality.

[0013] Furthermore, in the shaved ice making device (2) described above, the container driving mechanism (16) may be configured to rotate, eccentrically rotate, or oscillate the serving container (24). This allows for variations in the serving style, contributing to a greater variety in serving styles.

[0014] In the shaved ice making apparatus (2), the container driving mechanism (110) may be configured to reciprocate the serving container (108) in a direction perpendicular to the rotation axis (8a, 8b) of the drum (8). This allows for automated serving of the shaved ice by pinching or the like.

[0015] The shaved ice making device (2) may also be configured to include a vibration source (96) that applies vibration to the drum (8). This allows the quality of the ice formed in the drum to be varied, thereby responding to a variety of customer preferences for ice texture.

[0016] The shaved ice making apparatus (2) may also be configured to include a cleaning mechanism (18) for cleaning the surface of the drum (8) after the shaved ice making process is completed, thereby improving hygiene and reducing the labor required by the operator.

[0017] In the shaved ice making apparatus (2) described above, the cleaning mechanism (18) may be configured to include a plurality of spray nozzles (60a) arranged in the axial direction of the drum (8). This allows for hygienic cleaning with a simple configuration. [Effects of the Invention]

[0018] According to the present invention, it is possible to realize a compact, lightweight, quiet and low-vibration device, as well as to save power, and it can be flexibly adapted for outdoor use, etc. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a perspective view showing the general configuration of a shaved ice making device according to a first embodiment of the present invention. [Figure 2] 2 is a schematic cross-sectional view showing a turntable mechanism in the shaved ice making apparatus shown in FIG. 1. FIG. [Figure 3] 2 is a schematic cross-sectional view showing the driving configuration of the drum and the supply configuration of the ice layer forming liquid in the shaved ice making device shown in FIG. 1. FIG. [Figure 4] 2 is a side view showing a cooling mechanism in the shaved ice making apparatus shown in FIG. 1. [Figure 5] FIG. 5 is an exploded perspective view of a main part of the cooling mechanism shown in FIG. [Figure 6] FIG. 2 is a schematic cross-sectional view showing the heat exhaust configuration inside the drum of the shaved ice making device shown in FIG. [Figure 7] FIG. 2 is a drive circuit diagram of the cooling mechanism and the drum in the shaved ice making device shown in FIG. [Figure 8] FIG. 2 is a control block diagram of the shaved ice making apparatus shown in FIG. [Figure 9] FIG. 10 is a side view of a main part showing a container driving mechanism in the shaved ice making device according to the second embodiment. [Figure 10]FIG. 11 is a plan view of the main parts showing the container drive mechanism in the shaved ice making device according to the third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which thicknesses of components and cross-sectional representations (hatching) are omitted as appropriate.

[0021] [First embodiment] A first embodiment will be described with reference to Figures 1 to 8. Figure 1 shows the exterior of a shaved ice making device 2 according to this embodiment. Shaved ice making device 2 includes a device main body 4, a pair of left and right protrusions 6a, 6b that protrude horizontally from the upper front surface of device main body 4, a drum 8 that is rotatably supported between protrusions 6a, 6b and driven to rotate by a motor (described below), a liquid supply mechanism 10 that supplies a liquid for forming an ice layer to the surface of drum 8, a cooling mechanism (described below) that cools drum 8 to form an ice layer on the surface of drum 8, and a cutter 12 that scrapes off the ice layer formed on the surface of drum 8 as drum 8 rotates.

[0022] Shaved ice making device 2 further includes serving table 14 that protrudes horizontally from the front lower portion of device body 4, turntable mechanism 16 as a container drive mechanism that moves (rotates) serving container 24 that receives the ice pieces shaved by cutter 12, cleaning mechanism 18 that cleans the surface of drum 8 after the shaved ice making process is completed, and rechargeable battery 20. Rechargeable battery 20 is detachably mounted to device body 4 via battery case 22 fixed to the lower back surface of the device body. Cutter 12 is replaceably mounted on a support member (not shown) that is fixed to protrusions 6a and 6b.

[0023] The surface of drum 8 is coated with silicone and nano-antibacterial coatings to improve hygiene and prevent food from sticking.

[0024] As shown in FIG. 2, the turntable mechanism 16 includes a table 26, a gear 28 integrally formed on the underside of the table 26, a rotary shaft 30, a motor (serving container drive motor) 32 that rotates the table 26, and a worm gear 34 fixed to the rotary shaft of the motor 32 and meshing with the gear 28. The turntable mechanism 16 is housed embedded inside the serving table 14, except for the upper surface (placement surface) of the table 26. The motor 32 is a DC servo motor. Although not shown, a discharge guide is provided between the protrusions 6a and 6b to guide the ice pieces P scraped off by the cutter 12 into the serving container 24. The discharge guide is configured so that its width narrows toward the serving container 24, and its angle can be changed to accommodate the size and shape of the serving container 24.

[0025] As shown in Fig. 3, the drum 8 is rotated by a drum motor 36 installed inside the device main body 4. A belt 42 is wound between a pulley 38 fixed to the rotary shaft 8b of the drum 8 and a pulley 40 fixed to the rotary shaft of the drum motor 36. Instead of the combination of the pulleys 38, 40 and the belt 42, a driving force transmission configuration using a sprocket and chain may be used. The drum motor 36 is a DC servo motor.

[0026] The liquid supply mechanism 10 includes a conical cup 44 containing ice layer forming liquid L, a support block 45 fixed to the upper surface of the device main body 4 and having a tapered hole 45a that stably holds the cup 44, a mounting recess 46 formed in the device main body 4 and having a sealing function into which a cylindrical supply port 44a formed at the lower end of the cup 44 is attached, a liquid reservoir 48 provided on the underside of the drum 8 and in which part of the surface of the drum 8 is immersed, a pipe 50 connecting the mounting recess 46 and the liquid reservoir 48, and an electromagnetic valve 52 that opens and closes communication between the mounting recess 46 and the liquid reservoir 48.

[0027] As shown in FIG. 1, the cleaning mechanism 18 includes a holder 54 fixed to the side of the device body 4, a cleaning liquid tank 56 removably attached to the holder 54 and containing a cleaning liquid such as water, a cleaning liquid supply hose 58, an electric pump 59, and a cylindrical cleaning head 60 disposed between the protrusions 6a and 6b and connected to the cleaning liquid supply hose 58. The cleaning head 60 is indicated by a two-dot chain line for clarity. As shown in FIG. 3, the cleaning head 60 is provided with multiple spray nozzles 60a spaced apart in the axial direction of the drum 8. During cleaning, the cleaning liquid is sprayed from the spray nozzles 60a around the drum 8 and cutter 12 while the drum 8 is rotating. The cleaning liquid may be tap water, warm water, or a disinfectant, and sterilization may be achieved by spraying hot water.

[0028] The cooling mechanism will be described with reference to Figures 4 to 6. As shown in Figure 4, the cooling mechanism 62 includes a plurality of Peltier modules 64 arranged on the inner surface of the drum 8. Specifically, the cooling mechanism 62 includes the Peltier modules 64, a cooling plate 66 fixed to the cooling surface side of the Peltier modules 64 and having a curved surface that contacts the inner surface of the drum 8, a heat dissipation cylinder (heat pipe) 68 having a plurality of flat surfaces 68a to which the heat dissipation surface side of the Peltier modules 64 is fixed, a heat insulating frame material 70 that blocks heat transfer from the heat dissipation surface of the Peltier modules 64 to the cooling plate 66, and a suction fan 72 (see Figure 6) that exhausts the air inside the heat dissipation cylinder 68 to the outside of the drum 8. In this embodiment, the outer surface of the heat dissipation cylinder 68 is formed into a regular dodecagon.

[0029] As shown in Figure 5, the heat dissipation surface of the Peltier module 64 is fixed to the flat surface 68a of the heat dissipation cylinder 68, and after a heat insulating frame 70 is placed to surround the periphery of the Peltier module 64, a cooling plate 66 is fixed to the cooling surface of the Peltier module 64. This assembly is attached to the inner surface of the drum 8 so that the inner surface and the cooling plate 66 are in close contact with each other. The Peltier module 64 has a well-known structure in which multiple pairs of P-type and N-type thermoelectric elements are arranged between two substrates made of insulating and thermally conductive ceramic and electrodes such as copper. Reference numerals 64a and 64b indicate some of the lead wires of the Peltier module 64.

[0030] As shown in FIG. 6, the rotating shafts 8a and 8b of the drum 8 are rotatably supported by bearings 76 fixed to the side plates 6a-1 and 6b-1 of the protrusions 6a and 6b. Reference numeral 76a denotes a bearing. The cylindrical rotating shaft 8a on the left side is connected to the interior of the drum 8, and a suction fan 72 is connected to the outer end of the rotating shaft 8a via a bearing 78. This configuration is omitted in FIG. 1. The right side plate 8c of the drum 8 has multiple openings 8d that communicate with the outside. Operation of the suction fan 72 draws external air into the drum 8 and exhausts it from the suction fan 72 along with the heated air inside the drum 8. This allows heat dissipation from the multiple Peltier modules 64 to be efficiently discharged, reducing the adverse effects of heat dissipation (reduced cooling efficiency). In FIG. 6, reference numeral 69 denotes an integrated structure including the Peltier modules 64.

[0031] Lead wires 64a, 64b of each Peltier module 64 are drawn out to the rotating shaft 8a, and these are electrically connected to the rechargeable battery 20 via slip rings 82 (see Figure 7) inside a slip ring case 80 that covers the outer surface of the rotating shaft 8a.

[0032] As shown in FIG. 7, the slip ring 82 includes two rings 86a and 86b fixed to the rotating shaft 8a and brushes 88a and 88b that slide against these rings. Twelve Peltier modules 64 are connected in parallel between the rings 86a and 86b, and a DC-DC converter 90 is disposed between the rechargeable battery 20 and the brushes 88a and 88b. This DC-DC converter 90 differentiates the voltage applied to the Peltier modules 64 from the voltage applied to the drum motor 36. Of course, if the voltages applied to the drum motor 36 and the Peltier modules 64 are the same, the DC-DC converter 90 is unnecessary. Reference numeral 92 denotes an electronic switch (also referred to as a Peltier switch) that controls the flow of electricity to the Peltier modules 64, and reference numeral 94 denotes an electronic switch (also referred to as a drum motor switch) that controls the flow of electricity to the drum motor 36. In other words, the rechargeable battery 20 is a power source that supplies power to the drum motor 36 and the Peltier modules 64. In FIG. 7, reference numeral R denotes a rotating system, and reference numeral S denotes a stationary system.

[0033] Although only the electrical connections between the drum motor 36, Peltier module 64, and rechargeable battery 20 are shown here, the electric pump 59, motor 32, electromagnetic valve 52, suction fan 72, and other electrically powered devices are also driven by the rechargeable battery 20 via electronic switches.

[0034] The control configuration of shaved ice making device 2 according to this embodiment will be described with reference to Figure 8. Control unit 100 is a microcomputer including a CPU, ROM, RAM, I / O interface, etc., and controls drum motor 36, electric pump 59, serving motor 32, electromagnetic valve 52, suction fan 72, and vibration source (vibration motor) 96, which contacts the shaft of drum 8 to impart vibrations, based on information input from touch panel-type operation panel 102 (see Figure 1). The number of rotations (rotational speed) of drum motor 36 is controlled based on information from rotary encoder 36a. Control unit 100 has a function to detect the remaining charge of rechargeable battery 20, and when the remaining charge falls below a predetermined value, this is displayed on operation panel 102 to notify the user that rechargeable battery 20 should be replaced.

[0035] As shown in FIG. 1, a push-button main switch 104 is provided on the outer surface of the protrusion 6b, and an indicator lamp 106 is provided next to it to indicate whether the main switch 104 is energizing. When the main switch 104 is pressed, the rechargeable battery 20 and the circuitry within the device main body 4 are energized. The operation panel 102 has a button for changing the texture of the ice. In this example, three buttons are provided: "Fluffy," "Crunchy," and "Threaded Bingsu," allowing multiple ice textures to be produced with one device. This allows for a wide range of uses, such as for crepe balls and desserts. "Threaded Bingsu" means "shaved ice" in Korean and refers to ice pieces shaved into threads of less than 1 mm.

[0036] If the drum vibration source 96 vibrates the drum 8 while cooling as soon as cooling mechanism 62 starts, the ice crystals on the surface of the drum 8 will be uniform, resulting in shaved ice with a smooth texture. By controlling the vibration time and magnitude, it is possible to vary the smoothness and respond to a variety of individual textures.

[0037] The ROM of the control unit 100 stores a control table containing data for obtaining each ice texture determined in advance through experiments and data on the type of presentation (rotation speed of the drum 8, presence or absence or strength of vibration, shape of the cutter 12, movement of the presentation container 24, etc.), and the control unit 100 calls up the corresponding data depending on the type of button pressed and controls the operation of each device.

[0038] The cutter 12 can be replaced manually, allowing the blade shape to be changed. By changing the blade shape, the shape of the shaved ice can be changed to spherical, ribbon, flake, etc. Therefore, if the texture of the ice corresponding to the pressed button does not match the cutter 12, the control unit 100 will display on the operation panel 102 a message informing the user that the cutter 12 should be replaced and of the type. Air can also be blown with a blower while shaving with the cutter 12. This allows for lighter, fluffier ice pieces to be formed.

[0039] When water or colored ice layer-forming liquid L is poured into cup 44 and the button for obtaining the desired texture is pressed, control unit 100 controls solenoid valve 52 to supply ice layer-forming liquid L to liquid reservoir 48. It also turns on drum motor switch 94, Peltier switch 92, and other devices, controlling drum motor 36 and other devices based on data corresponding to the selected ice texture. When power is applied to Peltier module 64, drum 8 is instantly cooled, and ice layer-forming liquid L adhering to the surface of drum 8 from liquid reservoir 48 forms an ice layer. As drum 8 rotates, cutter 12 scrapes the ice layer off, and the ice layer is placed in serving container 24, which rotates on turntable mechanism 16, for serving.

[0040] The determination of the quantity of ice to be poured into the serving container 24 is performed by managing time using a timer provided in the control unit 100. That is, when the predetermined time for the appropriate amount of ice to be poured is reached, the rotation of the drum motor 36 is stopped and the operation of related equipment is stopped. In addition, the electromagnetic valve 52 is closed to stop the supply of ice layer-forming liquid L to the liquid reservoir 48. This prevents ice pieces from spilling from the serving container 24, ensuring that the product is poured with uniform quality. The determination of the quantity of ice may also be controlled using a sensor that measures the weight of the serving container 24.

[0041] When the cleaning button on operation panel 102 is pressed after the shaved ice making process is completed, control unit 100 executes a cleaning operation to clean the surface of drum 8 and cutter 12. While rotating drum 8, control unit 100 drives electric pump 59, spraying cleaning liquid from spray nozzle 60a for a predetermined time set by a timer. After the predetermined time has elapsed, control unit 100 stops drum motor 36 and also controls electric pump 59. After the shaved ice making process is completed, the process may automatically transition to the cleaning process after a predetermined time set by a timer has elapsed.

[0042] As described above, in this embodiment, the cooling mechanism 62 is configured with a Peltier module 64 that utilizes the Peltier effect. This eliminates the need for compressors and other components required in conventional refrigeration cycles, resulting in a smaller, lighter (more compact) configuration, lower vibration, quieter operation, and lower costs. Furthermore, the start-up time from power-on to ice production is short, resulting in excellent usability. Energy consumption is lower than in conventional ice-making devices, resulting in energy savings. The smaller size and weight also contribute to excellent mobility (portability). Furthermore, this embodiment uses a rechargeable battery 20 as its power source, allowing for flexible use in outdoor events, mobile sales, and other situations. Commercial power sources can also be used. Replacing the rechargeable battery 20 enables extended operation. Automatic serving also allows for mass production, particularly when there are many customers, improving work efficiency.

[0043] The drum 8 is replaceably provided on the device body 4, and by changing the surface properties of the drum 8, the texture of the ice pieces can be made to suit the purpose, such as coarse shavings, fine shavings, or powdery snow shavings.

[0044] [Second embodiment] The second embodiment will be described with reference to Fig. 9. Note that the same parts as those in the first embodiment or parts that can be considered to be the same are indicated by the same reference numerals, and the explanations of the configuration and function that have already been given will be omitted as appropriate unless particularly necessary (the same applies to the other embodiments described below).

[0045] In the first embodiment, the serving container 24 rotates around the rotation axis 30, but in this embodiment, the rectangular serving container 108 is moved back and forth in a direction perpendicular to the rotation axes 8a, 8b of the drum 8.

[0046] The linear motion guide mechanism 110 serving as the container drive mechanism in this embodiment includes a support base 112 disposed inside the serving table 14, a ball screw 114 rotatably supported on the support base 112, a slider 116 fitted to the ball screw 114, and a motor 118 that rotates the ball screw 114. The motor 118 is a DC servo motor. The slider 116 moves while supported by a guide rail (not shown). The serving container 108 has its bottom fixed to the slider 116 and moves linearly as the slider 116 moves. The control unit 100 controls the motor 118 to reciprocate within a predetermined stroke. In this case, the direction of movement can be switched by time management using a timer or based on signals from a mechanical sensor or photoelectric sensor. This configuration is suitable for serving thread pins and allows for automated serving.

[0047] [Third embodiment] A third embodiment will be described with reference to Figure 10. The swinging mechanism 120 serving as a container drive mechanism in this embodiment includes three gears 122A, 122B, and 122C arranged inside the serving table 14, a motor (DC servo motor, not shown) that rotates one of the gears, and a swinging plate 124 rotatably connected to shafts 122A-1 and 122C-1 fixed to the upper surfaces of the gears 122A and 122C, respectively. A ball-shaped serving container 126, indicated by a two-dot chain line, is fixed to the swinging plate 124. The swinging plate 124 displaces its fixed point 124a in a horizontal plane, drawing a circle, causing the serving container 126 to swing (rotate eccentrically) accordingly, resulting in more varied serving than the serving container 24 in the first embodiment, which rotates about an axis.

[0048] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and various modifications are possible within the scope of the claims and the technical ideas described in the specification and drawings. For example, in the above-described embodiments, the cooling surface of the Peltier module 64 is in contact with the inner surface of the cylindrical drum 8 via the cooling plate 66, but a flat surface may be formed on the inner surface of the drum 8 so that the cooling surface of the Peltier module 64 comes into direct contact with the inner surface.

[0049] It is also possible to combine cooling by the Peltier module 64 with cooling by a conventional refrigeration cycle. Also, a temperature sensor that detects the temperature of the drum 8 may be provided, and an optimal cooling pattern may be automatically selected by combining it with an AI algorithm. Also, the number of times shaved ice has been made may be counted, and if a predetermined number is exceeded, a maintenance notice may be displayed on the operation panel 102. Additionally, static electricity may be controlled so that the ice pieces shaved by the cutter 12 will stick more easily to the serving containers 24, 108, 126. [Explanation of symbols]

[0050] 2 Shaved ice making equipment 4. Device body 8 Drums 10 Liquid supply mechanism 12 Cutter 16 Turntable mechanism (container drive mechanism) 18 Cleaning mechanism 20 Rechargeable Battery 24, 108, 126 Serving containers 26 tables 36 Drum motor (motor) 44 cups 44a Supply port 46 Mounting recess 48 Liquid reservoir 50 Pipe 52 Solenoid valve 56 Cleaning liquid tank 59 Electric Pump 60 cleaning heads 60a spray nozzle 62 Cooling mechanism 64 Peltier modules 66 Cooling Plate 68 Heat dissipation cylinder 68a flat surface 70 Insulation frame material 72 Suction fan 82 slip ring 86a, 86b rings 88a, 88b Brush 100 control section 102 Operation Panel 110 Linear motion guide mechanism (container drive mechanism) 120 Swing mechanism (container drive mechanism)

Claims

1. a drum that is driven to rotate by a motor; a liquid supply mechanism for supplying a liquid for forming an ice layer to the surface of the drum; a cooling mechanism that cools the drum to form an ice layer on the surface of the drum; a cutter that scrapes off the ice layer formed on the surface of the drum as the drum rotates, The shaved ice making device is characterized in that the cooling mechanism comprises a plurality of Peltier modules arranged on the inner surface of the drum, a cooling plate fixed to the cooling surface side of the Peltier modules and having a curved surface that follows the inner surface of the drum, a heat dissipation cylinder having a plurality of flat surfaces to which the heat dissipation surface side of the Peltier modules is fixed, and a suction fan that exhausts the air inside the heat dissipation cylinder to the outside of the drum.

2. A shaved ice making device as described in Claim 1, characterized in that the power source that supplies power to the motor and the Peltier module is a rechargeable battery that can be attached and detached to the main body of the device.

3. A shaved ice making apparatus as described in Claim 1, characterized in that the Peltier module is supplied with power via a slip ring.

4. A shaved ice making apparatus as described in claim 1, characterized in that it comprises a serving container that receives the ice pieces shaved off by the cutter, and a container drive mechanism that moves the serving container.

5. A shaved ice making apparatus as described in Claim 4, characterized in that the container driving mechanism has a configuration for rotating the serving container, or a configuration for eccentric rotation or oscillating rotation.

6. 5. The shaved ice making device according to claim 4, wherein the container drive mechanism is configured to reciprocate the serving container in a direction perpendicular to the rotation axis of the drum.

7. A shaved ice making apparatus as described in claim 1, characterized in that it is equipped with a vibration source that imparts vibration to the drum.

8. A shaved ice making apparatus as described in claim 1, characterized in that it is equipped with a cleaning mechanism for cleaning the surface of the drum after the shaved ice making process is completed.

9. A shaved ice making apparatus as described in Claim 8, characterized in that the cleaning mechanism comprises a plurality of spray nozzles arranged in the axial direction of the drum.

Images