Multifunctional milk mixing device

Abstract

The utility model relates to the technical field of milk mixing devices, in particular to a multifunctional milk mixing device which comprises a milk mixing kettle and a disinfection bin. The milk mixing kettle and the disinfection bin are separately and independently arranged on the control platform; a milk mixing heating part is arranged at the bottom of the milk mixing kettle, and a plurality of milk mixing temperature detection parts are arranged on the milk mixing kettle from top to bottom; a drying fan and a first disinfection part are arranged in the center of the top of the disinfection bin, a drying heating part and a second disinfection part are arranged at the bottom of the disinfection bin, and a plurality of disinfection temperature detection parts are arranged in the disinfection bin from top to bottom; the problem that due to the fact that temperature detection is not comprehensive, the drying function and the milk mixing function are limited is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of milk mixers, in particular to a multifunctional milk mixer. Background Art

[0002] The original purpose of a milk mixer was to warm boiled water to a suitable drinking temperature for babies, which was then used to prepare formula for feeding. Its primary function was to maintain a constant water temperature, hence the name constant-temperature milk mixer. Later, a blender was added to facilitate mixing of formula. To meet the need for sterilizing and drying bottles after use, sterilization and drying functions were also added. Consequently, the control platform includes a separate milk mixer for this function and a sterilization chamber for drying and sterilizing, creating a multifunctional milk mixer.

[0003] However, in existing multifunctional milk mixers, temperature detection for the sterilization chamber's drying function and the milk preparation function is simply performed by using a single temperature sensor to measure the temperature at that time, which is then used to coordinate with the relevant components to achieve the drying or milk preparation functions. This results in incomplete temperature detection, which limits further improvements in functional performance or even leads to functional defects. For example, the drying function requires temperature detection to coordinate the drying component and fan component for better drying results. However, by only measuring local temperature data, the overall drying effect cannot be measured, resulting in deviations in the drying effect, which can cause water marks to remain on the milk bottle and poor drying results. Utility Model Content

[0004] In view of the above-mentioned defects, the purpose of the present invention is to provide a multifunctional milk mixer, which solves the problem that the performance of the drying function and the milk mixing function is limited due to incomplete temperature detection.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A multifunctional milk mixer, comprising a milk mixer and a sterilizing chamber; the milk mixer and the sterilizing chamber are separately arranged on a control platform;

[0007] The bottom of the milk mixing pot is provided with a milk mixing heating part, and the milk mixing pot is provided with a plurality of milk mixing temperature detection parts from top to bottom;

[0008] A drying fan and a first disinfection part are provided in the center of the top of the disinfection chamber, a drying heating part and a second disinfection part are provided at the bottom of the disinfection chamber, and a plurality of disinfection temperature detection parts are provided inside the disinfection chamber from top to bottom.

[0009] Furthermore, the milk mixing temperature detection parts are respectively provided on the top and bottom of the milk mixing pot;

[0010] A pair of the disinfection temperature detection parts are oppositely arranged on the inner top of the disinfection chamber, and a pair of the disinfection temperature detection parts are oppositely arranged on the inner bottom of the disinfection chamber.

[0011] Furthermore, it also includes a temperature detection circuit, a heating control circuit, a fan control circuit, a disinfection control circuit and a microcontroller; the control end of the microcontroller is electrically connected to the input ends of the heating control circuit, the fan control circuit and the disinfection control circuit respectively, and the input end of the microcontroller is electrically connected to the output end of the temperature detection circuit;

[0012] The milk conditioning temperature detection unit and the sterilization temperature detection unit are electrically connected to the corresponding temperature detection circuit respectively, and the input end of the temperature detection circuit is electrically connected to the milk conditioning temperature detection unit or the sterilization temperature detection unit;

[0013] The milk conditioning heating unit and the drying heating unit are electrically connected to the corresponding heating control circuit respectively, and the output end of the heating control circuit is electrically connected to the milk conditioning heating unit or the drying heating unit;

[0014] The output end of the fan control circuit is electrically connected to the drying fan;

[0015] The first disinfection part and the second disinfection part are electrically connected to the disinfection control circuit respectively, and the output end of the disinfection control circuit is electrically connected to the first disinfection part or the second disinfection part.

[0016] Furthermore, the milk conditioning temperature detection unit and the sterilization temperature detection unit both use NTC temperature sensors;

[0017] The temperature detection circuit includes a resistor R20, a resistor R22 and a capacitor C7; one end of the resistor R22 is used as an input end of the temperature detection circuit, and the other end of the resistor R22 is used as an output end of the temperature detection circuit;

[0018] One end of the resistor R20 is connected to a 5V power supply, the other end of the resistor R20 is electrically connected to the other end of the resistor R22, one end of the resistor R22 is electrically connected to one end of the capacitor C7, and the other end of the capacitor C7 is grounded.

[0019] Furthermore, the heating control circuit includes a bidirectional thyristor SCR1, a resistor R18, a resistor R19, a resistor R23, a resistor R25 and a transistor Q1; the second anode of the bidirectional thyristor SCR1 serves as the output end of the heating control circuit, and one end of the resistor R23 serves as the input end of the heating control circuit;

[0020] The first anode of the bidirectional thyristor SCR1 is connected to a 14V power supply, the control electrode of the bidirectional thyristor SCR1 is electrically connected to one end of the resistor R18, the other end of the resistor R18 is electrically connected to one end of the resistor R19, the other end of the resistor R19 is electrically connected to the collector of the transistor Q1, the base of the transistor Q1 and one end of the resistor R25 are electrically connected to the other end of the resistor R23, and the emitter of the transistor Q1 and the other end of the resistor R25 are both grounded.

[0021] Furthermore, the fan control circuit includes a resistor R17, a resistor R37, a resistor R43, a resistor R29, a resistor R30, a diode D6, and a MOS transistor Q4; one end of the resistor R29 serves as an input end of the fan control circuit, and both the cathode and anode of the diode D6 serve as output ends of the fan control circuit;

[0022] One end of the resistor R37, one end of the resistor R43, and one end of the resistor R17 are all connected to a 14V power supply. The other ends of the resistor R37, the other ends of the resistor R43, and the other ends of the resistor R17 are all electrically connected to the cathode of the diode D6. The drain of the MOS transistor Q4 is electrically connected to the anode of the diode D6. The gate of the MOS transistor Q4 and one end of the resistor R30 are electrically connected to the other end of the resistor R29. The source of the MOS transistor Q4 and the other end of the resistor R30 are grounded.

[0023] Furthermore, the disinfection control circuit includes a resistor JR2, a resistor R21, a resistor R24, a resistor R26, a resistor R42, a transistor Q3, and a MOS transistor Q2; one end of the resistor R42 is used as the input end of the disinfection control circuit, and the drain of the MOS transistor Q2 and the emitter of the transistor Q3 are both used as the output end of the disinfection control circuit;

[0024] One end of the resistor JR2 is connected to a 14V power supply, the other end of the resistor JR2 and one end of the resistor R21 are electrically connected to the source of the MOS transistor Q2, the other end of the resistor R21 and one end of the resistor R24 ​​are electrically connected to the gate of the MOS transistor Q2, the other end of the resistor R24 ​​is electrically connected to the collector of the transistor Q3, the base of the transistor Q3 and one end of the resistor R26 are electrically connected to the other end of the resistor R42, and the emitter of the transistor Q3 and the other end of the resistor R26 are grounded.

[0025] Furthermore, the milk conditioning heating part and the drying heating part both use PTC heaters.

[0026] The technical solution provided by the utility model can include the following beneficial effects: the milk mixing pot is used for milk mixing, and the disinfection chamber is used for disinfection and drying functions. The two are separately arranged on the control platform to ensure dry and wet separation and avoid affecting the functional effects.

[0027] Specifically, a milk mixing kettle is provided with a milk mixing heating part (which can be a heating component such as a heating plate, a heating wire, etc.) at the bottom, which is usually located in the center of the bottom so that the milk kettle can be evenly heated from the bottom after being placed on the milk mixing heating part; and a plurality of milk mixing temperature detection parts are provided from top to bottom of the milk mixing kettle for layered detection of the water temperature at different heights of the milk mixing kettle during the boiling process; because the milk is generally cooled to about 30°C by standing or using a fan after boiling, and then heated to a constant temperature of about 40°C by the milk mixing heating part, during the heating process from 30°C to 40°C, the water flows upward, and the temperature of the upper layer is higher than that of the lower layer. Therefore, the existing milk mixing device is only provided with one temperature detection part. No matter where the detection is performed, the measured temperature is either higher or lower than the preset temperature. Therefore, a plurality of milk mixing temperature detection parts are required from top to bottom to detect the temperatures at different heights and take the average to represent the actual temperature, thereby improving the performance of the milk mixing function and making the milk mixing temperature closest to the actual value.

[0028] Specifically, a drying fan and a first disinfection part are provided in the center of the top of the disinfection chamber. Usually, the first disinfection part is an ultraviolet lamp, which is arranged in the center of the rotating shaft of the drying fan, so that the drying fan and the first disinfection part can blow or irradiate from the top to the periphery of the milk jug and the inside of the jug when working; a drying heating part (which can be a heating plate, heating wire or other heating components) and a second disinfection part are provided at the bottom of the disinfection chamber. Usually, the second disinfection part is also an ultraviolet lamp. The drying heating part is arranged in the center of the bottom, and the second disinfection part is arranged on both sides of the drying heating part. Therefore, this structural layout can realize the intersection of the drying heating part heating from the bottom upward and the airflow blowing downward from the drying fan to form hot air flowing inside and outside the milk jug. At the same time, the second disinfection part can also fully irradiate the bottom of the milk jug, thereby improving the comprehensiveness of drying and disinfection.

[0029] More importantly, during the drying process of this structural layout, if there are water marks on the milk jug, the temperature at the water marks will be lower than that at other parts; based on this, if only one temperature detection is set, when the drying stops when the preset temperature is reached, it is easy for water marks to remain outside the temperature detection position, resulting in poor drying effect. Therefore, multiple disinfection temperature detection parts are provided from top to bottom inside the disinfection chamber, which are used to detect the temperature of the milk jug at different heights during the drying process in layers to ensure that the milk jug has been fully dried and improve the drying effect.

[0030] In summary, the multifunctional milk mixer solves the problem of limited performance of the drying function and milk mixing function due to incomplete temperature detection by adjusting the structural layout of each component and adjusting the setting method of the temperature detection points. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a multifunctional milk mixer according to one embodiment of the present utility model.

[0032] Figure 2 Yes Figure 1 The circuit diagram of a multifunctional milk mixer is shown.

[0033] Figure 3 Yes Figure 2 The circuit diagram of the temperature detection circuit is shown.

[0034] Figure 4 Yes Figure 2 The circuit diagram of the heating control circuit is shown.

[0035] Figure 5 Yes Figure 2 The circuit diagram of the fan control circuit is shown.

[0036] Figure 6 Yes Figure 2 The circuit diagram of the disinfection control circuit is shown.

[0037] Among them: milk mixing pot 1, disinfection chamber 2, milk mixing heating part 11, milk mixing temperature detection part 12, drying fan 21, first disinfection part 22, drying heating part 23, second disinfection part 24, disinfection temperature detection part 25, temperature detection circuit 3, heating control circuit 4, fan control circuit 5, disinfection control circuit 6, microcontroller 7, resistor R20, resistor R22, capacitor C7, bidirectional thyristor SCR1, resistor R18, resistor R19, resistor R23, resistor R25, transistor Q1, resistor R17, resistor R37, resistor R43, resistor R29, resistor R30, diode D6, MOS tube Q4, resistor JR2, resistor R21, resistor R24, resistor R26, resistor R42, transistor Q3, MOS tube Q2. DETAILED DESCRIPTION

[0038] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0039] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish between the described features, without distinction of order or importance.

[0040] In the description of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0041] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediate medium; they may refer to internal communication between two components or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0042] The following combination Figures 1 to 6 , describing a multifunctional milk mixer according to an embodiment of the present utility model.

[0043] A multifunctional milk mixer, comprising a milk mixer 1 and a sterilizing chamber 2; the milk mixer 1 and the sterilizing chamber 2 are separately arranged on a control platform;

[0044] The bottom of the milk mixing pot 1 is provided with a milk mixing heating part 11, and the milk mixing pot 1 is provided with a plurality of milk mixing temperature detection parts 12 from top to bottom;

[0045] A drying fan 21 and a first disinfection part 22 are provided at the top center of the disinfection chamber 2, a drying heating part 23 and a second disinfection part 24 are provided at the bottom of the disinfection chamber 2, and a plurality of disinfection temperature detection parts 25 are provided inside the disinfection chamber 2 from top to bottom.

[0046] The present invention provides a multifunctional milk mixer in a preferred embodiment, such as Figure 1 As shown, the milk mixing pot 1 is used for milk mixing, and the sterilization chamber 2 is used for sterilization and drying. The two are separately set on the control platform to ensure separation of dry and wet areas to avoid affecting the functional effects.

[0047] Specifically, a milk mixing pot 1 is provided with a milk mixing heating part 11 (which can be a heating component such as a heating plate, a heating wire, etc.) at the bottom, which is usually located in the center of the bottom so that the milk pot can be evenly heated from the bottom after being placed on the milk mixing heating part 11; and a plurality of milk mixing temperature detection parts 12 are provided from top to bottom on the milk mixing pot 1 for layered detection of the water temperature at different heights of the milk pot during the boiling process; because the milk is generally boiled and then cooled to about 30°C by standing or using a fan, and then heated to a constant temperature of about 40°C by the milk mixing heating part 11, during the heating process from 30°C to 40°C, the water flows upward, and the temperature of the upper layer is higher than that of the lower layer. Therefore, the existing milk mixing device is only provided with one temperature detection. No matter where the detection is performed, the measured temperature is either higher or lower than the preset temperature. Therefore, it is necessary to provide a plurality of milk mixing temperature detection parts 12 from top to bottom to detect the temperatures at different heights and take the average to represent the actual temperature, thereby improving the performance of the milk mixing function and making the milk mixing temperature closest to the actual value.

[0048] Specifically, a drying fan 21 and a first disinfection part 22 are provided at the top center of the disinfection chamber 2. Usually, the first disinfection part 22 is an ultraviolet lamp, which is arranged in the center of the rotating shaft of the drying fan 21, so that the drying fan 21 and the first disinfection part 22 can blow or irradiate the periphery of the milk pot and the inside of the pot from the top when working; a drying heating part 23 (which can be a heating component such as a heating plate, a heating wire, etc.) and a second disinfection part 24 are provided at the bottom of the disinfection chamber 2. Usually, the second disinfection part 24 is also an ultraviolet lamp. The drying heating part 23 is arranged in the center of the bottom, and the second disinfection part 24 is arranged on both sides of the drying heating part 23. Therefore, this structural layout can realize that the drying heating part 23 heats from the bottom upward and intersects with the airflow blown downward by the drying fan 21 to form hot air flowing inside and outside the milk pot. At the same time, the second disinfection part 24 can also fully irradiate the bottom of the milk pot, thereby improving the comprehensiveness of drying and disinfection.

[0049] More importantly, during the drying process of this structural layout, if there are water marks on the milk jug, the temperature at the water marks will be lower than that at other parts. Based on this, if only one temperature detector is provided, when drying stops when the preset temperature is reached, it is easy for water marks to remain outside the temperature detection position, resulting in poor drying effect. Therefore, multiple disinfection temperature detection parts 25 are provided inside the disinfection chamber 2 from top to bottom, which are used to detect the temperature of the milk jug at different heights during the drying process in layers, so as to ensure that the milk jug has been fully dried and improve the drying effect.

[0050] In summary, the multifunctional milk mixer solves the problem of limited performance of the drying function and milk mixing function due to incomplete temperature detection by adjusting the structural layout of each component and adjusting the setting method of the temperature detection points.

[0051] Furthermore, milk temperature detectors 12 are provided at the top and bottom of the milk mixing pot 1;

[0052] A pair of sterilization temperature detection parts 25 are provided opposite to each other on the inner top of the sterilization chamber 2 , and a pair of sterilization temperature detection parts 25 are provided opposite to each other on the inner bottom of the sterilization chamber 2 .

[0053] In this embodiment, it is found in actual application that the milk mixing function has a stable water flow during the heating and boiling process, and the temperature difference between the top water body and the bottom water body is also constant. Therefore, after obtaining the specific difference in the experiment, it is only necessary to provide a milk mixing temperature detection part 12 at the top and bottom of the milk mixing pot 1, and preset two preset temperatures respectively (for example, if 40° is actually required, the top temperature is detected to be 43°, and the bottom temperature is detected to be 37°, which means that 40° has actually been reached, and the difference is always 6°). There is no need to set multiple milk mixing temperature detection parts 1 in a gradient to take the average, which saves detection costs.

[0054] In actual application of the drying function, it is found that the water marks of the milk jug basically hang on the wall at the top, the water marks in the middle gather into a ball due to gravity and flow to the bottom, there are very few water marks in the middle and a large amount of water marks at the bottom. In addition, based on the comprehensive flow of hot air during the drying process, when the water marks on the top and bottom are dried, the middle part will definitely be dried as well. At this time, the temperatures of the top and bottom remain basically unchanged. Therefore, it is only necessary to detect whether the temperatures of the top and bottom have not changed within a certain period of time to know whether the drying is completed. Therefore, a pair of disinfection temperature detection parts 25 are relatively provided at the inner top of the disinfection chamber 2, and a pair of disinfection temperature detection parts 25 are relatively provided at the inner bottom of the disinfection chamber 2. While saving costs, it also improves the accuracy of drying detection.

[0055] It should be noted that the drying process is carried out at a constant temperature, and the milk conditioning temperature detection unit 12 can be used to selectively start and stop the drying and heating unit 23.

[0056] Furthermore, it also includes a temperature detection circuit 3, a heating control circuit 4, a fan control circuit 5, a disinfection control circuit 6 and a microcontroller 7; the control end of the microcontroller 7 is electrically connected to the input ends of the heating control circuit 4, the fan control circuit 5 and the disinfection control circuit 6, respectively, and the input end of the microcontroller 7 is electrically connected to the output end of the temperature detection circuit 3;

[0057] The milk conditioning temperature detection unit 12 and the sterilization temperature detection unit 25 are electrically connected to the corresponding temperature detection circuit 3, and the input end of the temperature detection circuit 3 is electrically connected to the milk conditioning temperature detection unit 12 or the sterilization temperature detection unit 25;

[0058] The milk conditioning heating unit 11 and the drying heating unit 23 are electrically connected to the corresponding heating control circuit 4, and the output end of the heating control circuit 4 is electrically connected to the milk conditioning heating unit 11 or the drying heating unit 23;

[0059] The output end of the fan control circuit 5 is electrically connected to the drying fan 21;

[0060] The first disinfection part 22 and the second disinfection part 24 are electrically connected to a disinfection control circuit 6 , respectively. An output end of the disinfection control circuit 6 is electrically connected to the first disinfection part 22 or the second disinfection part 24 .

[0061] In this embodiment, based on the above layout structure, the microcontroller 7 is electrically connected to the temperature detection circuit 3, the heating control circuit 4, the fan control circuit 5 and the disinfection control circuit 6 to form a control system of the multifunctional milk mixer. Figure 2 As shown, the functional components of the milk mixer can be coordinated and cooperated, thereby improving the overall work efficiency and effect.

[0062] Furthermore, both the milk conditioning temperature detection unit 12 and the sterilization temperature detection unit 25 use NTC temperature sensors;

[0063] The temperature detection circuit 3 includes a resistor R20, a resistor R22 and a capacitor C7; one end of the resistor R22 is used as an input end of the temperature detection circuit 3, and the other end of the resistor R22 is used as an output end of the temperature detection circuit 3;

[0064] One end of the resistor R20 is connected to a 5V power supply, the other end of the resistor R20 is electrically connected to the other end of the resistor R22, one end of the resistor R22 is electrically connected to one end of the capacitor C7, and the other end of the capacitor C7 is grounded.

[0065] In this embodiment, the temperature detection circuit is as follows Figure 3 As shown, it is preferably composed of a resistor R20, a resistor R22 and a capacitor C7, the control circuit is simple and the cost is low; and it is particularly suitable for when the milk conditioning temperature detection part 12 and the disinfection temperature detection part 25 use NTC temperature sensors for temperature detection, and because there are more temperature detection points, the milk conditioning temperature detection part 12 and the disinfection temperature detection part 25 preferably use NTC temperature sensors, which are lower in cost than other temperature sensors (such as infrared temperature sensors, IC temperature sensors, etc.).

[0066] Furthermore, the heating control circuit 4 includes a bidirectional thyristor SCR1, a resistor R18, a resistor R19, a resistor R23, a resistor R25 and a transistor Q1; the second anode of the bidirectional thyristor SCR1 serves as an output end of the heating control circuit 4, and one end of the resistor R23 serves as an input end of the heating control circuit 4;

[0067] A first anode of the bidirectional thyristor SCR1 is connected to a 14V power supply, a control electrode of the bidirectional thyristor SCR1 is electrically connected to one end of a resistor R18, the other end of the resistor R18 is electrically connected to one end of a resistor R19, the other end of the resistor R19 is electrically connected to the collector of the transistor Q1, the base of the transistor Q1 and one end of the resistor R25 are electrically connected to the other end of the resistor R23, and the emitter of the transistor Q1 and the other end of the resistor R25 are both grounded.

[0068] In this embodiment, Figure 4 As shown, the heating control circuit 4 of the milk conditioning heating part 11 and the drying heating part 23 is preferably composed of a bidirectional thyristor SCR1, a resistor R18, a resistor R19, a resistor R23, a resistor R25 and a transistor Q1. The microcontroller 7 controls the conduction angle and the trigger angle of the bidirectional thyristor SCR1 through the transistor Q1 to achieve precise control of the heater current and voltage, thereby precisely controlling the heater temperature and power. This precise control can achieve an efficient and stable heating effect.

[0069] Furthermore, the fan control circuit 5 includes a resistor R17, a resistor R37, a resistor R43, a resistor R29, a resistor R30, a diode D6, and a MOS transistor Q4; one end of the resistor R29 serves as an input end of the fan control circuit 5, and both the cathode and anode of the diode D6 serve as output ends of the fan control circuit 5;

[0070] One end of the resistor R37, one end of the resistor R43, and one end of the resistor R17 are all connected to a 14V power supply. The other ends of the resistor R37, the other ends of the resistor R43, and the other ends of the resistor R17 are all electrically connected to the cathode of the diode D6. The drain of the MOS transistor Q4 is electrically connected to the anode of the diode D6. The gate of the MOS transistor Q4 and one end of the resistor R30 are electrically connected to the other end of the resistor R29. The source of the MOS transistor Q4 and the other end of the resistor R30 are grounded.

[0071] In this embodiment, Figure 5 As shown, the fan control circuit 5 is composed of a resistor R17, a resistor R37, a resistor R43, a resistor R29, a resistor R30, a diode D6 and a MOS transistor Q4. Under the current shunt protection formed by the resistors R17, R37 and R43 and the voltage stabilization of the diode D6, the microcontroller 7 can directly drive the MOS transistor Q4 to control the drying fan 21.

[0072] Furthermore, the disinfection control circuit 6 includes a resistor JR2, a resistor R21, a resistor R24, a resistor R26, a resistor R42, a transistor Q3, and a MOS transistor Q2; one end of the resistor R42 is used as an input end of the disinfection control circuit 6, and the drain of the MOS transistor Q2 and the emitter of the transistor Q3 are both used as output ends of the disinfection control circuit 6;

[0073] One end of resistor JR2 is connected to a 14V power supply, the other end of resistor JR2 and one end of resistor R21 are electrically connected to the source of MOS transistor Q2, the other end of resistor R21 and one end of resistor R24 ​​are electrically connected to the gate of MOS transistor Q2, the other end of resistor R24 ​​is electrically connected to the collector of transistor Q3, the base of transistor Q3 and one end of resistor R26 are electrically connected to the other end of resistor R42, and the emitter of transistor Q3 and the other end of resistor R26 are grounded.

[0074] In this embodiment, when the first disinfection unit 22 and the second disinfection unit 24 are different disinfection devices, the required driving voltages are also different. In order to be compatible with more disinfection devices (such as ultraviolet lamps of different specifications), the disinfection control circuit 6 is as follows: Figure 6 As shown, it is composed of a resistor JR2, a resistor R21, a resistor R24, a resistor R26, a resistor R42, a transistor Q3 and a MOS transistor Q2. The MOS transistor Q2 is used for separation to prevent the 14V voltage from directly entering the I / O port of the microcontroller 7 (such as MCU) and causing damage to the microcontroller 7.

[0075] Furthermore, both the milk conditioning heating unit 11 and the drying heating unit 23 use PTC heaters.

[0076] In this embodiment, in order to improve the safety of the milk conditioning heating part 11 or the drying heating part 23, it is preferred to use a PTC heater. The PTC heater has a self-control characteristic. When the temperature rises to a certain level, its resistance value will increase rapidly, thereby limiting the flow of current and avoiding the risk of overheating and fire.

[0077] Other structures and operations of the multifunctional milk mixer according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0078] Throughout this specification, references to terms such as "embodiment" and "example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0079] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A multifunctional milk mixer, characterized by: It includes a milk mixing pot and a sterilizing chamber; the milk mixing pot and the sterilizing chamber are separately arranged on the control platform; The bottom of the milk mixing pot is provided with a milk mixing heating part, and the milk mixing pot is provided with a plurality of milk mixing temperature detection parts from top to bottom; A drying fan and a first disinfection part are provided in the center of the top of the disinfection chamber, a drying heating part and a second disinfection part are provided at the bottom of the disinfection chamber, and a plurality of disinfection temperature detection parts are provided inside the disinfection chamber from top to bottom.

2. The multifunctional milk mixer according to claim 1, characterized in that: The milk mixing temperature detection parts are respectively provided at the top and bottom of the milk mixing pot; A pair of the disinfection temperature detection parts are oppositely arranged on the inner top of the disinfection chamber, and a pair of the disinfection temperature detection parts are oppositely arranged on the inner bottom of the disinfection chamber.

3. The multifunctional milk mixer according to claim 2, characterized in that: It also includes a temperature detection circuit, a heating control circuit, a fan control circuit, a disinfection control circuit and a microcontroller; the control end of the microcontroller is electrically connected to the input ends of the heating control circuit, the fan control circuit and the disinfection control circuit respectively, and the input end of the microcontroller is electrically connected to the output end of the temperature detection circuit; The milk conditioning temperature detection unit and the sterilization temperature detection unit are electrically connected to the corresponding temperature detection circuit respectively, and the input end of the temperature detection circuit is electrically connected to the milk conditioning temperature detection unit or the sterilization temperature detection unit; The milk conditioning heating unit and the drying heating unit are electrically connected to the corresponding heating control circuit respectively, and the output end of the heating control circuit is electrically connected to the milk conditioning heating unit or the drying heating unit; The output end of the fan control circuit is electrically connected to the drying fan; The first disinfection part and the second disinfection part are electrically connected to the disinfection control circuit respectively, and the output end of the disinfection control circuit is electrically connected to the first disinfection part or the second disinfection part.

4. The multifunctional milk mixer according to claim 3, characterized in that: The milk conditioning temperature detection unit and the sterilization temperature detection unit both use NTC temperature sensors; The temperature detection circuit includes a resistor R20, a resistor R22 and a capacitor C7; one end of the resistor R22 is used as an input end of the temperature detection circuit, and the other end of the resistor R22 is used as an output end of the temperature detection circuit; One end of the resistor R20 is connected to a 5V power supply, the other end of the resistor R20 is electrically connected to the other end of the resistor R22, one end of the resistor R22 is electrically connected to one end of the capacitor C7, and the other end of the capacitor C7 is grounded.

5. The multifunctional milk mixer according to claim 3, characterized in that: The heating control circuit includes a bidirectional thyristor SCR1, a resistor R18, a resistor R19, a resistor R23, a resistor R25 and a transistor Q1; the second anode of the bidirectional thyristor SCR1 serves as the output end of the heating control circuit, and one end of the resistor R23 serves as the input end of the heating control circuit; The first anode of the bidirectional thyristor SCR1 is connected to a 14V power supply, the control electrode of the bidirectional thyristor SCR1 is electrically connected to one end of the resistor R18, the other end of the resistor R18 is electrically connected to one end of the resistor R19, the other end of the resistor R19 is electrically connected to the collector of the transistor Q1, the base of the transistor Q1 and one end of the resistor R25 are electrically connected to the other end of the resistor R23, and the emitter of the transistor Q1 and the other end of the resistor R25 are both grounded.

6. The multifunctional milk mixer according to claim 3, characterized in that: The fan control circuit includes a resistor R17, a resistor R37, a resistor R43, a resistor R29, a resistor R30, a diode D6, and a MOS transistor Q4; one end of the resistor R29 serves as an input end of the fan control circuit, and the cathode and anode of the diode D6 serve as output ends of the fan control circuit; One end of the resistor R37, one end of the resistor R43, and one end of the resistor R17 are all connected to a 14V power supply. The other ends of the resistor R37, the other ends of the resistor R43, and the other ends of the resistor R17 are all electrically connected to the cathode of the diode D6. The drain of the MOS transistor Q4 is electrically connected to the anode of the diode D6. The gate of the MOS transistor Q4 and one end of the resistor R30 are electrically connected to the other end of the resistor R29. The source of the MOS transistor Q4 and the other end of the resistor R30 are grounded.

7. The multifunctional milk mixer according to claim 3, characterized in that: The disinfection control circuit includes a resistor JR2, a resistor R21, a resistor R24, a resistor R26, a resistor R42, a transistor Q3 and a MOS transistor Q2; one end of the resistor R42 is used as the input end of the disinfection control circuit, and the drain of the MOS transistor Q2 and the emitter of the transistor Q3 are both used as the output end of the disinfection control circuit; One end of the resistor JR2 is connected to a 14V power supply, the other end of the resistor JR2 and one end of the resistor R21 are electrically connected to the source of the MOS transistor Q2, the other end of the resistor R21 and one end of the resistor R24 ​​are electrically connected to the gate of the MOS transistor Q2, the other end of the resistor R24 ​​is electrically connected to the collector of the transistor Q3, the base of the transistor Q3 and one end of the resistor R26 are electrically connected to the other end of the resistor R42, and the emitter of the transistor Q3 and the other end of the resistor R26 are grounded.

8. The multifunctional milk mixer according to claim 3, characterized in that: The milk conditioning heating part and the drying heating part both adopt PTC heaters.

Images