Snow melting machine refrigeration control method and snow melting machine convenient for maintaining smoothie taste

Abstract

The invention belongs to the technical field of snow melting machines, and particularly relates to a snow melting machine refrigeration control method and a snow melting machine convenient for maintaining the taste of smoothie, and the snow melting machine refrigeration control method comprises the following steps: S1, presetting a first material temperature control threshold C0, a return difference temperature value C and a return difference current value I in a control mainboard; s2, starting a refrigeration device and a stirring motor, and detecting the real-time current I of the stirring motor and the real-time material temperature C in the material cylinder in real time; s3, when the real-time material temperature in the material cylinder is reduced to C < = C0, refrigeration is stopped, and meanwhile, the real-time current value of the stirring motor at the moment is recorded and stored as a current control threshold value I0; s4, when the real-time current of the stirring motor is reduced to I < = I0-I, or the real-time material temperature in the material cylinder is increased to C > = C0 + C, refrigeration is restarted; s5, when the real-time current of the stirring motor rises to I > = I0 and the real-time material temperature in the material cylinder drops to C < = C0, refrigeration is stopped; and S6, repeating the steps S4 and S5.

Description

Technical Field

[0001] The invention belongs to the technical field of snow melters, and in particular relates to a snow melter refrigeration control method and a snow melter capable of maintaining the taste of smoothies. Background Art

[0002] A snow melter is a food processing device that cools and stirs a liquid mixture of snowmelt and water to create a smoothie. The smoothie-making process generally proceeds as follows: The liquid ingredients are added to the snow melter's feed tank, where they are then cooled and stirred by a refrigeration unit and a stirring motor. When the temperature in the tank drops to the set temperature, the ingredients freeze into tiny ice crystals, forming the first ice crystals. This gives the smoothie its initial shape, resulting in a dry and delicious texture. Furthermore, the volume expands, making it prone to forming a slope. However, continued refrigeration can easily cause the smoothie to freeze into lumps. Therefore, it's necessary to repeatedly stop and start the refrigeration unit to maintain the smoothie's consistency. Existing snow melters generally use a first temperature control threshold and a hysteresis temperature value to control the start and stop of refrigeration. Refrigeration stops when the tank temperature drops to the first temperature control threshold and restarts when the tank temperature rises above the hysteresis temperature value. However, this traditional control method has the following problems. Since the refrigeration is stopped after the smoothie is formed for the first time, the smoothie will heat up and melt. In addition, the blender is constantly stirring, so the water in the smoothie will continue to evaporate, which will cause the sugar content in the smoothie to gradually increase, and then cause the freezing point of the smoothie to gradually decrease. Therefore, after restarting the refrigeration, even if the temperature is lowered to the first material temperature control threshold again, the smoothie cannot be frozen to form fine ice crystals like the first time, nor can it expand like the first time. The expansion coefficient is reduced, so the produced smoothie will taste relatively watery and wet, and the taste is poor. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention aims to provide a snow melting machine refrigeration control method and a snow melting machine that is convenient for maintaining the taste of smoothies.

[0004] In order to solve the above technical problems, one of the tasks of the present invention adopts the following technical solutions:

[0005] A snow melt machine refrigeration control method comprises the following steps:

[0006] S1: Preset the first material temperature control threshold C0, the hysteresis temperature value △C of the refrigeration device, and the hysteresis current value △I of the stirring motor in the control mainboard of the snow melter;

[0007] S2: The refrigeration device and the stirring motor are started, and the real-time current I of the stirring motor and the real-time material temperature C in the material tank are detected in real time;

[0008] S3: When the real-time material temperature in the material cylinder drops to C≤C0, the refrigeration device is controlled to stop refrigeration, and the real-time current value of the stirring motor at this time is recorded and stored as the current control threshold I0;

[0009] S4: When the real-time current of the stirring motor drops to I≤I0-△I, or the real-time material temperature in the material tank rises to C≥C0+△C, the refrigeration device is controlled to restart refrigeration;

[0010] S5: When the real-time current of the stirring motor rises to I≥I0 and the real-time material temperature in the material cylinder drops to C≤C0, the refrigeration device is controlled to stop refrigeration;

[0011] S6: Repeat the above steps S4 and S5.

[0012] Preferably, the step S1 further includes presetting a second material temperature control threshold C1 in the control mainboard of the snow melter, wherein C1>C0; and after the step S6, the following steps are also included:

[0013] S7: When the power of the snow melter is turned off or the real-time material temperature in the material cylinder rises to C≥C1, the stirring motor current control threshold value I0 stored in step S3 is cleared.

[0014] Preferably, the first material temperature control threshold C0 is in the range of -1°C to -5°C.

[0015] Preferably, the return temperature value ΔC ranges from 0.1°C to 1°C.

[0016] Preferably, the hysteresis current value ΔI ranges from 0.01A to 0.05A.

[0017] Preferably, the second material temperature control threshold C1 is in the range of 2°C to 6°C.

[0018] The technical solution adopted in the second task of the present invention is:

[0019] A snow melter that is convenient for maintaining the taste of smoothies is based on the above-mentioned snow melter refrigeration control method, and includes a material cylinder, an agitator, a stirring motor for driving the agitator to rotate, a refrigeration device for cooling the material cylinder, a current detection device for real-time detection of the current of the stirring motor, a temperature detection device for real-time monitoring of the temperature in the material cylinder, and a control mainboard, wherein the control mainboard electrical signal connects the current detection device, the temperature detection device, the stirring motor and the refrigeration device.

[0020] Compared with the prior art, the present invention provides a snow melt refrigeration control method and a snow melt that is convenient for maintaining the taste of smoothies, which have the following beneficial effects: a preset first material temperature control threshold C0 is used as a control condition for controlling the refrigeration device to stop refrigeration for the first time, and the current value of the stirring motor at this time is recorded as the current control threshold I0 when the refrigeration device stops refrigeration for the first time, and then the stirring motor current control threshold I0 and the first material temperature control threshold CO are both reached as the control condition for controlling the refrigeration device to stop refrigeration. That is, each subsequent time the refrigeration is stopped, the current value of the stirring motor must reach the current control threshold I0 of the stirring motor when the refrigeration is stopped for the first time. In this way, the forming state of the smoothie can be closer to the state of accumulation of fine ice crystals when the smoothie is first formed (because the forming state of the smoothie is positively correlated with the current value of the stirring motor), thereby facilitating the maintenance of the taste of the smoothie, and the volume is expanded, and an accumulation slope is easily formed. In addition, due to factors such as the different types of snowmelt, different content of each component, and different viscosity, the stirring motor current value will also be different when the smoothie reaches the first forming state. Therefore, if this value is preset in the control main board of the snowmelt machine based on theoretical calculations or experience, it will be difficult to match different snowmelts. The present application can accurately match the current snowmelt by automatically recording and storing the stirring motor current control threshold I0 at the time when the refrigeration device stops refrigeration for the first time (that is, when the smoothie is first formed) as a subsequent control parameter, and automatically clearing the previously stored stirring motor current control threshold I0 when the snowmelt machine is turned off or C0 ≥ 4℃, which can avoid the mismatch problem caused by using the previously stored stirring motor current control threshold I0 as the control parameter when the snowmelt machine is restarted (new snowmelt is added) next time.

[0021] The concept, specific structure and effects of the present invention will be further described below with reference to the accompanying drawings to fully understand the purpose, features and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a flow chart of the steps of the snow melt machine refrigeration control method in Example 1;

[0023] Figure 2 This is a structural diagram of the snow melting machine in Example 2;. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below using an air conditioning system as an example with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for the purpose of explaining the present invention and are not intended to limit the present invention.

[0025] Example 1:

[0026] like Figure 1As shown, this embodiment provides a snow melt machine refrigeration control method, including the following steps:

[0027] S1: Preset the first material temperature control threshold C0, the hysteresis temperature value △C of the refrigeration device, and the hysteresis current value △I of the stirring motor in the control mainboard of the snow melter;

[0028] S2: The refrigeration device and the stirring motor are started, and the real-time current I of the stirring motor and the real-time material temperature C in the material tank are detected in real time;

[0029] S3: When the real-time material temperature in the material cylinder drops to C≤C0, the refrigeration device is controlled to stop refrigeration, and the real-time current value of the stirring motor at this time is recorded and stored as the current control threshold I0;

[0030] S4: When the real-time current of the stirring motor drops to I≤I0-△I, or the real-time material temperature in the material tank rises to C≥C0+△C, the refrigeration device is controlled to restart refrigeration;

[0031] S5: When the real-time current of the stirring motor rises to I≥I0 and the real-time material temperature in the material cylinder drops to C≤C0, the refrigeration device is controlled to stop refrigeration;

[0032] S6: Repeat the above steps S4 and S5.

[0033] Preferably, the step S1 further includes presetting a second material temperature control threshold C1 in the control mainboard of the snow melter, wherein C1>C0; and after the step S6, the following steps are also included:

[0034] S7: When the power of the snow melter is turned off or the real-time material temperature in the material cylinder rises to C≥C1, the stirring motor current control threshold value I0 stored in step S3 is cleared.

[0035] As a preferred solution of this embodiment, the range of the first material temperature control threshold C0 is -1°C to -5°C.

[0036] As a preferred solution of this embodiment, the range of the return temperature value ΔC is 0.1°C to 1°C.

[0037] As a preferred solution of this embodiment, the range of the hysteresis current value ΔI is 0.01A~0.05A.

[0038] As a preferred solution of this embodiment, the second material temperature control threshold C1 ranges from 2°C to 6°C, preferably 4°C.

[0039] Compared with the prior art, the present embodiment provides a snow melt machine refrigeration control method. When controlling the refrigeration process of the snow melt machine, a preset first material temperature control threshold C0 is used as the control condition for controlling the refrigeration device to stop refrigeration for the first time, and the current value of the stirring motor at this time is recorded as the current control threshold I0 when the refrigeration device stops refrigeration for the first time. Then, the stirring motor current control threshold I0 and the first material temperature control threshold CO are both reached as the control condition for controlling the refrigeration device to stop refrigeration. That is, each subsequent time the refrigeration is stopped, the current value of the stirring motor must reach the current control threshold I0 of the stirring motor when the refrigeration is stopped for the first time. In this way, the forming state of the smoothie can be closer to the state of accumulation of fine ice crystals when the smoothie is first formed (because the forming state of the smoothie is positively correlated with the current value of the stirring motor), thereby facilitating the maintenance of the taste of the smoothie. In addition, due to factors such as the different types of snowmelt, different content of each component, and different viscosity, the stirring motor current value will also be different when the smoothie reaches the first forming state. Therefore, if this value is preset in the control main board of the snowmelt machine based on theoretical calculations or experience, it will be difficult to match different snowmelts. The present application can accurately match the current snowmelt by automatically recording and storing the stirring motor current control threshold I0 at the time when the refrigeration device stops refrigeration for the first time (that is, when the smoothie is first formed) as a subsequent control parameter, and automatically clearing the previously stored stirring motor current control threshold I0 when the snowmelt machine is turned off or C0 ≥ 4℃, which can avoid the mismatch problem caused by using the previously stored stirring motor current control threshold I0 as the control parameter when the snowmelt machine is restarted (new snowmelt is added) next time.

[0040] Example 2:

[0041] like Figure 2 As shown, this embodiment provides a snow melter that is convenient for maintaining the taste of smoothies. Based on the above-mentioned snow melter refrigeration control method, it includes a frame 1, and a material cylinder 2, a stirrer 3, a stirring motor 4 for driving the stirrer 3 to rotate, a refrigeration device for cooling the material cylinder 2, and a current detection device for real-time detection of the current of the stirring motor, a temperature detection device for real-time monitoring of the temperature in the material cylinder, and a control main board (not shown in the drawings), wherein the control main board connects the current detection device, the temperature detection device, the stirring motor and the refrigeration device through electrical signals, wherein the refrigeration device includes a compressor, a condenser, an expansion valve (not shown in the drawings) and an evaporator 5 connected by a refrigerant pipeline, wherein the evaporator 5 is arranged at the lower part of the material cylinder 2, and the stirrer 3 is in the shape of an impeller, which is sleeved on the outer surface of the evaporator 5 and can rotate around the evaporator.

[0042] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the invention herein is not limited to technical solutions formed by a specific combination of the aforementioned technical features. It also encompasses other technical solutions formed by any combination of the aforementioned technical features or their equivalents, without departing from the inventive concept. For example, a technical solution formed by replacing the aforementioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A snow melt machine refrigeration control method, characterized in that: The steps include: S1: Preset the first material temperature control threshold C0, the hysteresis temperature value △C of the refrigeration device, and the hysteresis current value △I of the stirring motor in the control mainboard of the snow melter; S2: The refrigeration device and the stirring motor are started, and the real-time current I of the stirring motor and the real-time material temperature C in the material tank are detected in real time; S3: When the real-time material temperature in the material cylinder drops to C≤C0, the refrigeration device is controlled to stop refrigeration, and the real-time current value of the stirring motor at this time is recorded and stored as the current control threshold I0; S4: When the real-time current of the stirring motor drops to I≤I0-△I, or the real-time material temperature in the material tank rises to C≥C0+△C, the refrigeration device is controlled to restart refrigeration; S5: When the real-time current of the stirring motor rises to I≥I0 and the real-time material temperature in the material cylinder drops to C≤C0, the refrigeration device is controlled to stop refrigeration; S6: Repeat the above steps S4 and S5.

2. The snow melt machine refrigeration control method according to claim 1, characterized in that: The step S1 further includes presetting a second material temperature control threshold C1 in the control mainboard of the snow melter, wherein C1>C0; and after the step S6, the following steps are also included: S7: When the power of the snow melter is turned off or the real-time material temperature in the material cylinder rises to C≥C1, the stirring motor current control threshold value I0 stored in step S3 is cleared.

3. The snow melt machine refrigeration control method according to claim 1, characterized in that: The first material temperature control threshold C0 ranges from -1°C to -5°C.

4. The snow melt machine refrigeration control method according to claim 1, characterized in that: The range of the return temperature value △C is 0.1℃~1℃.

5. The snow melt machine refrigeration control method according to claim 1, characterized in that: The range of the hysteresis current value ΔI is 0.01A~0.05A.

6. The snow melt machine refrigeration control method according to claim 2, characterized in that: The second material temperature control threshold C1 ranges from 2°C to 6°C.

7. A snow melting machine that is convenient for maintaining the taste of smoothies, characterized in that: The snow melting machine refrigeration control method based on any one of claims 1 to 6 includes a material cylinder, an agitator, a stirring motor for driving the agitator to rotate, a refrigeration device for cooling the material cylinder, a current detection device for real-time detection of the current of the stirring motor, a temperature detection device for real-time monitoring of the temperature in the material cylinder, and a control main board, wherein the control main board electrical signal connects the current detection device, the temperature detection device, the stirring motor and the refrigeration device.

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