Method for controlling soft and hard texture of smoothie of smoothie machine

Abstract

The invention discloses a smoothie soft and hard texture control method of a smoothie machine, and belongs to the technical field of smoothie machines, the smoothie machine comprises a mixing container used for receiving a beverage product; the stirring device is used for stirring the beverage product in the mixing container; the cooling device is used for cooling the beverage product in the mixing container; the temperature sensor is used for detecting the real-time cooling temperature of the beverage product; the storage is used for storing different types of beverage products and storing different default working time of the cooling device corresponding to the different types of beverage products; the control panel is used for receiving the manual selection of the beverage product type by a user and the manual adjustment of the working time of the cooling device; and the main electric control board is used for controlling the start and stop of the cooling device based on the cooperation of the real-time cooling temperature and the default working time of the cooling device or the cooperation of the manually adjusted working time of the cooling device. According to the method, the soft and hard texture of the smoothie can be effectively adjusted and controlled.

Description

Technical Field

[0001] The invention relates to the technical field of smoothie machines, in particular to a method for controlling the softness and hardness of smoothies of a smoothie machine. Background Art

[0002] A smoothie machine, also known as a snow melt machine, generally includes a transparent tank or mixing container for receiving a beverage product, a mixing device for mixing the beverage product in the transparent tank or mixing container, and a cooling device for cooling the beverage product in the transparent tank or mixing container. When in use, the user places the beverage product in the transparent tank or mixing container, the mixing device mixes the beverage product, and the cooling device cools the mixed beverage product, so as to make the beverage product from pure liquid (or a combination of liquid and ice) into a frozen or semi-frozen product (such as smoothies, slush drinks, smoothies, ice cream or other frozen or semi-frozen products). The prepared cooled product is generally dispensed and discharged through a dispensing head or dispenser located near the front and bottom of the transparent tank or mixing container.

[0003] In order to satisfy the taste of different users for cooled products, it is necessary to adjust and control the hardness of cooled products. The existing adjustment and control method adopts temperature detection, that is, the cooling temperature of the beverage product is detected by a temperature sensor. When the temperature of the beverage product drops to a preset value, the machine automatically stops. Although the hardness and softness of the cooled product can be adjusted and controlled, different beverage products have different degrees of hardness at the same temperature, and ice particles will be generated when the beverage product reaches the critical point of freezing. Some ice particles will contact the temperature sensor, which will affect the detection result of the temperature sensor and cause misjudgment. Another adjustment and control method adopts current detection, that is, by detecting the current of the stirring motor in the mixing device, when the beverage product freezes, the resistance of the stirring motor increases, and the current increases accordingly. When the current reaches a preset value, it automatically stops. This adjustment and control method can solve the problem of different freezing points of different beverage products. However, the working current of the stirring motor is greatly affected by the ambient temperature. In addition, when the user adds solids such as particles to the beverage product, it is easy to affect the resistance of the stirring motor in a short time, causing misjudgment.

[0004] Therefore, further improvement is necessary. Summary of the invention

[0005] The present invention aims to provide a method for controlling the softness and hardness of an ice smoothie machine to overcome the deficiencies in the prior art.

[0006] A method for controlling the softness and hardness of an ice smoothie machine designed for this purpose comprises: a mixing container for receiving a beverage product; a stirring device, the stirring device stirring the beverage product in the mixing container; a cooling device, wherein the cooling device cools the beverage product in the mixing container; a temperature sensor, the temperature sensor detecting a real-time cooling temperature of the beverage product; a memory, wherein the memory stores different types of beverage products and stores different default working times of cooling devices corresponding to different types of beverage products; a control panel for receiving a user's manual selection of the beverage product type and a manual adjustment of the working time of the cooling device; A main electrical control board, wherein the main electrical control board is electrically connected to the stirring device, the cooling device, the temperature sensor, the memory, and the control panel, and controls the start and stop of the cooling device based on the coordination of the real-time cooling temperature with the default working time of the cooling device, or the coordination of the real-time cooling temperature with the manually adjusted working time of the cooling device.

[0007] The main electric control board receives the working time of the cooling device manually adjusted by the control panel and forms a set working time of the cooling device.

[0008] The manual adjustment of the working time of the cooling device is to increase or decrease the working time of the cooling device based on the default working time of the cooling device.

[0009] The working time of the cooling device is manually adjusted in any increment or decrement from 1 second to 60 seconds or from 1 minute to 20 minutes.

[0010] After forming the set working time of the cooling device, the main electric control board updates the set working time of the cooling device and makes it the actual working time of the cooling device. After the set working time of the cooling device is reached, the main electric control board controls the cooling device to stop working.

[0011] The set working time of the cooling device and the default working time of the cooling device both start from when the temperature sensor detects that the real-time cooling temperature of the beverage product reaches the cooling temperature target value, and end after the time countdown is completed.

[0012] The cooling temperature target value is 5 degrees - minus 10 degrees and is stored in the memory.

[0013] The memory stores a plurality of types of beverage products, and the plurality of types of beverage products correspond to different default working times of the cooling device and correspond to a unified cooling temperature target value.

[0014] The following steps are also included: I) placing the beverage product in the mixing container; II) selecting the corresponding type of the beverage product through the control panel; III) the memory retrieves the default working time of the cooling device of the corresponding type of the beverage product, and the control panel displays the type of the beverage product and the default working time of the cooling device; IV) the main electric control panel receives the user's adjustment of the default working time of the cooling device and forms the set working time of the cooling device, and the control panel displays the set working time of the cooling device; V) the main electric control panel controls the stirring device to stir the beverage product in the mixing container, and controls the cooling device to cool the beverage product in the mixing container; VI) the temperature sensor detects the real-time cooling temperature of the beverage product during the stirring and cooling process; VII) the main electric control board receives the real-time cooling temperature, and the real-time cooling temperature value reaches the cooling temperature target value; VIII) the main electric control board starts the countdown of the cooling device default working time or the cooling device set working time; VIIII) When the default working time of the cooling device or the set working time of the cooling device ends, the main electric control board controls the cooling device to stop working.

[0015] The ice smoothie machine includes a body, the mixing container is arranged on the body, the mixing container is provided with a feeding port for adding the beverage product, and a discharging port for distributing the discharging, the feeding port is provided with a detachable shielding plate, and the discharging port is provided with a discharging piece, the cooling device includes a compressor and an evaporator, the compressor is arranged on the body and is connected with the evaporator, the evaporator is located in the mixing container, the stirring device includes a stirring motor and a stirrer, the stirring motor is arranged on the body, and is driven and connected with a driving shaft, the driving shaft passes through the evaporator and is connected with the stirrer, the stirrer is driven and rotated on the evaporator by the stirring motor and the driving shaft, the temperature sensor is arranged on the evaporator or the mixing container, and is close to the discharging port, the memory is arranged on the main electric control board, the main electric control board is arranged on the body, and the control panel is arranged on the body and includes a key area and a display area.

[0016] The present invention stores different types of beverage products in a memory, and stores appropriate default working times of cooling devices for these different types of beverage products respectively. In addition, a control panel is used to facilitate users to manually select beverage product types and manually adjust the default working time of the cooling device. A temperature sensor is used to detect the temperature of the beverage product during the stirring and cooling process, so that the main electrical control board can control the cooling device to stop working through the default working time of the cooling device or the set working time of the cooling device after the real-time cooling temperature of the beverage product reaches a preset cooling temperature target value, thereby greatly meeting the personalized adjustment needs of the soft and hard texture of smoothies of different types of beverage products. The detection of the real-time cooling temperature and the control of the default working time of the cooling device or the set working time of the cooling device are accurate. The cooperation of the two can accurately control the soft and hard texture of the smoothie. At the same time, the participation of manual selection can greatly improve the flexibility of the adjustment and control of the soft and hard texture of the smoothie. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a control flow diagram of an embodiment of the present invention.

[0018] Figure 2 The figure is a schematic diagram of the exploded structure of a smoothie machine according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the assembly structure of an ice smoothie machine according to an embodiment of the present invention.

[0020] Figure 4 The figure is a schematic diagram of the cross-sectional structure of an assembly of a smoothie machine according to an embodiment of the present invention.

[0021] Figure 5 It is an electrical control schematic diagram of the stirring device, cooling device, temperature sensor, memory, control panel, and main electrical control board.

[0022] Figure 6 A schematic diagram of the control panel. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-Figure 6The method for controlling the softness and hardness of the smoothie of the smoothie machine comprises: A mixing container 2, the mixing container 2 is used to receive a beverage product; A stirring device, the stirring device stirs the beverage product in the mixing container 2; A cooling device, which cools the beverage product in the mixing container 2; A temperature sensor 10, the temperature sensor 10 detects the real-time cooling temperature of the beverage product; A memory 20, the memory 20 stores different types of beverage products and stores different default working times of the cooling device corresponding to different types of beverage products; A control panel 30, the control panel 30 receives a user's manual selection of a beverage product type and a manual adjustment of a working time of the cooling device; The main electrical control board 40 is electrically connected to the stirring device, the cooling device, the temperature sensor 10, the memory 20, and the control panel 30, respectively, and controls the start and stop of the cooling device based on the coordination of the real-time cooling temperature and the default working time of the cooling device, or the coordination of the real-time cooling temperature and the manually adjusted working time of the cooling device.

[0026] In this embodiment, the memory 20 is used to store different types of beverage products, and suitable cooling device default working times are respectively stored for these different types of beverage products. In addition, the control panel 30 is used to facilitate the user to manually select the type of beverage product and manually adjust the cooling device default working time. The temperature sensor 10 is used to detect the temperature of the beverage product during the stirring and cooling process, so that the main electrical control board 40 can control the cooling device to stop working through the cooling device default working time or the cooling device set working time after the real-time cooling temperature of the beverage product reaches the preset cooling temperature target value, thereby greatly meeting the personalized adjustment needs of the soft and hard texture of the smoothie of different types of beverage products. The real-time cooling temperature detection and the control of the cooling device default working time or the cooling device set working time are accurate. The cooperation of the two can accurately control the soft and hard texture of the smoothie. At the same time, the participation of manual selection can greatly improve the flexibility of the adjustment and control of the soft and hard texture of the smoothie.

[0027] The main electric control board 40 receives the working time of the cooling device manually adjusted by the control panel 30 and forms the set working time of the cooling device. That is, the user can adjust the default working time of the cooling device through the control panel 30, and the adjusted default working time of the cooling device becomes the set working time of the cooling device.

[0028] Manual adjustment of the working time of the cooling device is to increase or decrease the working time of the cooling device based on the default working time of the cooling device. That is, the adjustment basis of the setting working time of the cooling device is the default working time of the cooling device. The user can increase or decrease the time based on the default working time of the cooling device to allow the main electric control board 40 to form the setting working time of the cooling device.

[0029] The operating time of the cooling device can be manually adjusted in any increment or decrement from 1 second to 60 seconds or from 1 minute to 20 minutes.

[0030] When the user adjusts the working time of the cooling device, he / she can add any one within the range of 1 second to 60 seconds or 1 minute to 20 minutes to the default working time of the cooling device, or subtract any one within the range of 1 second to 60 seconds or 1 minute to 20 minutes from the default working time of the cooling device, thereby forming the set working time of the cooling device.

[0031] After forming the set working time of the cooling device, the main electric control board 40 updates the set working time of the cooling device and makes it the actual working time of the cooling device. The main electric control board 40 controls the cooling device to stop working after the set working time of the cooling device is reached.

[0032] In this embodiment, one of the cooling device default working time and the cooling device set working time is selected, that is, when the user selects the cooling device default working time on the main electric control board 40 and does not manually adjust it, the main electric control board 40 will control the cooling device to work with the cooling device default working time; when the user selects the cooling device default working time on the main electric control board 40 and manually adjusts it, the main electric control board 40 will control the cooling device to work with the cooling device set working time.

[0033] The set working time of the cooling device and the default working time of the cooling device both start from when the temperature sensor 10 detects that the real-time cooling temperature of the beverage product reaches the cooling temperature target value, and end after the time countdown is completed.

[0034] The cooling temperature target value is 5 degrees to minus 10 degrees, and is stored in the memory 20 .

[0035] The cooling temperature target value in this embodiment is preferably 3 degrees to 0 degrees. At this time, the beverage product is not frozen. At the same time, the delayed operation of the cooling device can continue to cool the beverage product and form a smoothie.

[0036] The memory 20 stores various types of beverage products, and the various types of beverage products correspond to different default working times of the cooling device and to a unified cooling temperature target value.

[0037] That is, different types of beverage products correspond to different default working times of the cooling device. Without any manual adjustment by the user, after different types of beverage products are cooled to a uniform cooling temperature target value, the main electrical control board 40 will control the cooling device with the default working time of the cooling device corresponding to the beverage product.

[0038] The following steps are also included: I) placing a beverage product in the mixing container 2; II) selecting a corresponding type of beverage product through the control panel 30; III) The memory 20 retrieves the default working time of the cooling device of the corresponding type of beverage product, and the control panel 30 displays the type of beverage product and the default working time of the cooling device; IV) The main electric control panel 40 receives the user's adjustment of the cooling device default working time and forms the cooling device set working time, and the control panel 30 displays the cooling device set working time; V) The main electric control panel 40 controls the stirring device to stir the beverage product in the mixing container 2 and controls the cooling device to cool the beverage product in the mixing container 2; VI) The temperature sensor 10 detects the real-time cooling temperature of the beverage product during the stirring and cooling process; VII) the main electric control board 40 receives the real-time cooling temperature, and the real-time cooling temperature value reaches the cooling temperature target value; VIII) The main electric control board 40 starts the countdown of the cooling device default working time or the cooling device set working time; VIIII) When the default working time of the cooling device or the set working time of the cooling device ends, the main electric control board 40 controls the cooling device to stop working.

[0039] Specifically, the user puts the beverage product through the feed port, and then selects the type of beverage product to be processed by the control panel 30. For example, the user selects "orange juice". When the beverage product is put into the mixing container 2, the user can provide input, such as pressing the "smoothie" button, and the main electric control panel 40 starts to process the beverage product based on "smoothie". The main electric control panel 40 may include activating the stirring device for stirring and / or the cooling device for cooling. In order to adjust the temperature under the specific setting associated with "smoothie", the main electric control panel 40 starts or stops the cooling device for cooling the beverage product according to the default working time of the cooling device or the set working time of the cooling device.

[0040] The temperature sensor 10 performs real-time detection of the cooling temperature of the beverage product in the mixing container 2 at any time. When the real-time cooling temperature value of the beverage product reaches the cooling temperature target value, the main electrical control board 40 starts the countdown of the cooling device default working time or the cooling device set working time. At this time, the soft and hard texture of the slush and / or ice particles formed in the beverage product corresponds to the extended cooling temperature of the beverage product, that is, the longer the cooling device works, the lower the temperature, the larger the amount of particles (and / or the larger the size of the particles) and / or the thicker the beverage product.

[0041] When leaving the factory, the smoothie machine stores different cooling device default working times corresponding to different types of beverage products to facilitate users' general cooling needs for beverage products. In addition, the user can also adjust the cooling device default working time through the control panel 30, thereby forming a cooling device set working time, so that the user can adjust the temperature and / or soft and hard texture of the beverage product to a more desired temperature and / or soft and hard texture.

[0042] The smoothie machine includes a body 1, and a mixing container 2 is arranged on the body 1. The mixing container 2 is provided with a feeding port for adding a beverage product and a discharging port for distributing the discharging material. A baffle plate 16 is detachably mounted on the feeding port, and a discharging piece 19 is disposed on the discharging port. When in use, the user can add the beverage product into the mixing container 2 and clean the inside of the mixing container 2 by disassembling the baffle plate 16, and the prepared smoothie can be distributed and discharged through the discharging piece 19.

[0043] The cooling device includes a compressor 5 and an evaporator 4. The compressor 5 is arranged on the machine body 1 and is connected with the evaporator 4. The evaporator 4 is located in the mixing container 2. A refrigeration circuit is formed between the compressor 5 and the evaporator 4. The compressor 5 is controlled by the main electric control board 40 and carries a refrigerant to the evaporator 4 to promote the cooling of the beverage product in the mixing container 2.

[0044] The stirring device includes a stirring motor 17 and a stirrer 15. The stirring motor 17 is arranged on the machine body 1 and is drivingly connected to a driving shaft 18. The driving shaft 18 passes through the evaporator 4 and is drivingly connected to the stirrer 15. The stirrer 15 rotates on the evaporator 4 by the driving of the stirring motor 17 and the driving shaft 18. The stirring motor 17 is controlled by the main electric control board 40 and drives the stirrer 15 to rotate on the evaporator 4 through the driving shaft 18. During the process, part of the beverage product is frozen on the surface of the evaporator 4 due to being cooled by the evaporator 4. The rotating stirrer 15 scrapes the frozen part of the beverage product from the surface of the evaporator 4, and at the same time mixes the cooled beverage product and pushes the cooled beverage product toward the front of the mixing container 2.

[0045] The temperature sensor 10 is arranged on the evaporator 4 or the mixing container 2 and is close to the discharge port. The temperature sensor 10 of this embodiment is arranged on the evaporator 4, and can detect the temperature of the beverage product cooled on the surface of the evaporator 4. At the same time, since the temperature sensor 10 is close to the discharge port, the temperature detection of the beverage product discharged from the discharge port is more accurate, which is more in line with the discharge requirements of the soft and hard texture of the smoothie.

[0046] The memory 20 is provided on the main electric control board 40 .

[0047] In this embodiment, the memory 20 can store a plurality of beverage product preparation and / or processing instruction programs associated with a plurality of beverage product processing sequences. Such beverage preparation and / or processing instruction programs may include instructions for the main electronic control board 40 to perform the following operations: start or stop the stirring device, start or stop the cooling device to adjust the temperature of the beverage product processed in the mixing container 2, operate the stirring device during certain periods during a specific beverage product processing sequence, operate the stirring device at certain speeds during certain time periods of the recipe, the control panel 30 issues a prompt instruction, and the main electronic control board 40 responds, acts and / or inputs from the memory 20.

[0048] The main electric control panel 40 is disposed on the machine body 1 , and the control panel 30 is disposed on the machine body 1 and includes a key area and a display area.

[0049] In this embodiment, the keypad may include one or more buttons, dials, switches, touch screens, indicators, LEDs, and the like. The display area may display status information, including, for example, the temperature of the beverage product in the mixing container 2, an indicator of the recipe and / or program currently being implemented, a default operating time of the cooling device associated with the progress of the recipe and / or program being implemented and / or currently being implemented, and a set operating time of the cooling device. In addition, the display area may also provide the user with indicators and / or warnings about, for example, when the recipe is completed or when the user is expected to perform an action associated with processing the beverage product. The display area may include an optional menu of beverage types (e.g., recipes) and / or programs for different types of beverage products, such as, but not limited to, slush, ice cream, snow melt, and the like. The keypad may discharge the slush, ice cream, snow melt, and the like, and perform cleaning instruction operations on the mixing container 2.

[0050] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A method for controlling the softness and hardness of an ice smoothie machine, characterized in that: include: A mixing container (2), the mixing container (2) being used to receive a beverage product; a stirring device, wherein the stirring device stirs the beverage product in the mixing container (2); a cooling device, wherein the cooling device cools the beverage product in the mixing container (2); a temperature sensor (10), wherein the temperature sensor (10) detects a real-time cooling temperature of the beverage product; A memory (20), the memory (20) storing different types of beverage products and storing different default working times of the cooling device corresponding to the different types of beverage products; A control panel (30), the control panel (30) receiving a user's manual selection of the beverage product type and manual adjustment of the working time of the cooling device; A main electric control board (40), the main electric control board (40) being electrically connected to the stirring device, the cooling device, the temperature sensor (10), the memory (20), and the control panel (30), respectively, and controlling the start and stop of the cooling device based on the coordination of the real-time cooling temperature with the default working time of the cooling device, or the coordination of the real-time cooling temperature with the manually adjusted working time of the cooling device.

2. The method for controlling the softness and hardness of the smoothie of the smoothie machine according to claim 1, characterized in that: The main electric control panel (40) receives the working time of the cooling device manually adjusted by the control panel (30) and forms a set working time of the cooling device.

3. The method for controlling the softness and hardness of the ice smoothie of the ice smoothie machine according to claim 2, characterized in that: The manual adjustment of the working time of the cooling device is to increase or decrease the working time of the cooling device based on the default working time of the cooling device.

4. The method for controlling the softness and hardness of the smoothie of the smoothie machine according to claim 3, characterized in that: The working time of the cooling device is manually adjusted in any increment or decrement from 1 second to 60 seconds or from 1 minute to 20 minutes.

5. The method for controlling the softness and hardness of the smoothie of the smoothie machine according to claim 2, characterized in that: After forming the set working time of the cooling device, the main electric control board (40) updates the set working time of the cooling device and makes it the actual working time of the cooling device. After the set working time of the cooling device is reached, the main electric control board (40) controls the cooling device to stop working.

6. The method for controlling the softness and hardness of the smoothie of the smoothie machine according to claim 2, characterized in that: The set working time of the cooling device and the default working time of the cooling device both start from the time when the temperature sensor (10) detects that the real-time cooling temperature of the beverage product reaches the cooling temperature target value, and end after the time countdown is completed.

7. The method for controlling the softness and hardness of the smoothie of the smoothie machine according to claim 6, characterized in that: The cooling temperature target value is 5 degrees to negative 10 degrees and is stored in the memory (20).

8. The method for controlling the softness and hardness of the smoothie of the smoothie machine according to claim 6 or 7, characterized in that: The memory (20) stores a plurality of types of beverage products, wherein the plurality of types of beverage products correspond to different default working times of the cooling device and correspond to a unified cooling temperature target value.

9. The method for controlling the softness and hardness of the smoothie of the smoothie machine according to claim 1, characterized in that The following steps are involved: I) placing the beverage product in the mixing container (2); II) selecting the corresponding type of the beverage product through the control panel (30); III) the memory (20) retrieves the default working time of the cooling device corresponding to the type of the beverage product, and the control panel (30) displays the type of the beverage product and the default working time of the cooling device; IV) the main electric control panel (40) receives the user's adjustment of the default working time of the cooling device and forms the set working time of the cooling device, and the control panel (30) displays the set working time of the cooling device; V) the main electric control panel (40) controls the stirring device to stir the beverage product in the mixing container (2), and controls the cooling device to cool the beverage product in the mixing container (2); VI) the temperature sensor (10) detects the real-time cooling temperature of the beverage product during the stirring and cooling process; VII) the main electric control board (40) receives the real-time cooling temperature, and the real-time cooling temperature value reaches the cooling temperature target value; VIII) the main electric control board (40) starts the countdown of the default working time of the cooling device or the set working time of the cooling device; VIIII) When the default working time of the cooling device or the set working time of the cooling device ends, the main electric control board (40) controls the cooling device to stop working.

10. The method for controlling the softness and hardness of the smoothie of the smoothie machine according to claim 1, characterized in that: The ice smoothie machine comprises a machine body (1), the mixing container (2) is arranged on the machine body (1), the mixing container (2) is provided with a feeding port for adding the beverage product, and a discharging port for distributing the discharging, the feeding port is provided with a detachable shielding plate (16), the discharging port is provided with a discharging member (19), the cooling device comprises a compressor (5) and an evaporator (4), the compressor (5) is arranged on the machine body (1) and is connected to the evaporator (4), the evaporator (4) is located in the mixing container (2), the stirring device comprises a stirring motor (17) and a stirrer (15), the stirring motor (17) is arranged on the mixing container (1), and the stirring motor (17) is connected to the mixing container (1). A drive shaft (18) is disposed on the machine body (1) and is drivably connected thereto. The drive shaft (18) passes through the evaporator (4) and is drivably connected to the stirrer (15). The stirrer (15) is driven to rotate on the evaporator (4) by the stirring motor (17) and the drive shaft (18). The temperature sensor (10) is disposed on the evaporator (4) or on the mixing container (2) and is close to the discharge port. The storage device (20) is disposed on the main electric control board (40). The main electric control board (40) is disposed on the machine body (1). The control panel (30) is disposed on the machine body (1) and comprises a key area and a display area.

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