Milk brewing device

Abstract

The utility model provides a milk brewing device which comprises a water supply container, a heater, a heat exchange mechanism, a water mixer, a constant-temperature water tank, a water outlet nozzle, a first water pump and a second water pump, and the first water pump is connected between the water supply container and the heater; the water outlet end of the heater is connected with the water inlet end of the heat exchange mechanism and a first water inlet of the water mixer, the water outlet end of the heat exchange mechanism is connected with a second water inlet of the water mixer and the constant-temperature water tank, and the water outlet end of the water mixer is connected with the water outlet nozzle. The second water pump is connected between the constant-temperature water tank and the water outlet nozzle so as to pump water in the constant-temperature water tank to the water outlet nozzle. Therefore, the milk powder is dissolved quickly, the dissolving effect is good, milk foams are effectively reduced, and temperature control is relatively accurate.

Description

Technical Field

[0001] The invention relates to a milk preparing device. Background Art

[0002] With the improvement of people's living standards, in daily life, especially in the maternal and infant stage, it is often necessary to prepare milk powder for babies. The current instant hot water machine generally only has the function of providing hot water (with a very high temperature). If the user needs to drink warm water, it takes a long time for the temperature of the hot water to slowly drop until it meets the user's drinking temperature requirements; therefore, the traditional instant hot water machine cannot meet the needs of preparing milk in the maternal and infant stage.

[0003] To this end, CN219962553U discloses an instant hot and cold water supply system for making milk and a milk maker thereof, which uses an instant heating pipe to quickly boil water, and then uses a heat exchange module to cool the boiled water and normal temperature water flowing into the instant heating pipe by convection heat exchange, and finally uses a regulating valve to adjust the mixing ratio of boiling water and cooled boiled water before the water is discharged from the water outlet, so as to achieve constant temperature and quantitative water supply. However, when a set volume of warm water with a suitable drinking temperature is directly output at one time, the dissolution speed of milk powder is slow, and the milk powder is easy to clump; there is also more milk foam after dissolution; the effect of making milk is not ideal.

[0004] In addition, the milk making devices currently on the market all have a powder box, a mixing chamber, a stirring rod, and other devices, that is, a powder box for adding milk powder, a mixing chamber for brewing milk powder, and a stirring rod are set at the outlet of the milk making device; after the milk powder and water are added to the mixing chamber, they are stirred and mixed by the stirring rod. In this way, these parts must be disassembled for cleaning and disinfection every time brewing is performed, which is cumbersome and inefficient. Summary of the invention

[0005] To this end, the present invention provides a milk preparing device to solve at least one of the above-mentioned technical problems.

[0006] To achieve the above purpose, the technical solution provided by the present invention is as follows:

[0007] A milk preparation device comprises a water supply container, a heater, a heat exchange mechanism, a water mixer, a constant temperature water tank, a water outlet, a first water pump and a second water pump, wherein the first water pump is connected between the water supply container and the heater to pump water in the water supply container to the heater; the water outlet end of the heater is respectively connected to the water inlet end of the heat exchange mechanism and the first water inlet of the water mixer to inject the heated water into the heat exchange mechanism and the water mixer respectively, the water outlet end of the heat exchange mechanism is respectively connected to the second water inlet of the water mixer and the constant temperature water tank to inject the water after heat exchange and cooling into the water mixer and the constant temperature water tank respectively, and the water outlet end of the water mixer is connected to the water outlet; the second water pump is connected between the constant temperature water tank and the water outlet to pump water in the constant temperature water tank to the water outlet.

[0008] With this configuration, the water mixer mixes the water directly input from the heater with the water input from the heat exchange mechanism, and the mixed water with a higher temperature can be used to make milk first, so that the milk powder dissolves quickly; one of the water paths from the heat exchange mechanism flows into the constant temperature water tank, and after the milk powder is dissolved, the low-temperature water in the constant temperature water tank is injected into the initial milk through the water outlet, and the initial milk is mixed and cooled, and then replenished to the set capacity. In this way, the milk powder dissolves quickly and the dissolution effect is good, which effectively reduces the generation of milk foam and the temperature control is more accurate. At the same time, the setting of the constant temperature water tank can store excess water for subsequent use, effectively saving water resources and reducing the power consumption of the device.

[0009] Furthermore, the constant temperature water tank specifically includes an insulation box body, a cooling module and a temperature control module. The cooling module is assembled on the insulation box body to cool the water in the insulation box body. The temperature control module detects the water temperature of the insulation box body and is connected to the cooling module to control the operation of the cooling module.

[0010] Furthermore, the cooling module is a semiconductor cooler.

[0011] Furthermore, the heat exchange mechanism includes a heat exchanger, a cooling water tank and a third water pump, the heat exchanger and the cooling water tank are connected to form a circulating cooling channel, and the third water pump is assembled on the cooling channel; the heat exchanger also has a heat exchange channel in thermal contact with the cooling channel, and the two ends of the heat exchange channel serve as the water inlet and water outlet of the heat exchange mechanism respectively.

[0012] Furthermore, the water outlet of the heater, the water outlet of the heat exchange mechanism and the water outlet of the water mixer are all equipped with temperature sensors.

[0013] Furthermore, it also includes a casing, in which the water supply container, heater, heat exchange mechanism, water mixer, constant temperature water tank, first water pump and second water pump are all assembled, and the casing has a milk-making chamber, and the water outlet is arranged at the top of the milk-making chamber.

[0014] Furthermore, a rotating device is provided in the milk-making cavity of the housing, and the rotating device is located below the water outlet and is provided with a milk bottle seat.

[0015] Furthermore, a lifting seat is arranged in the milk-making cavity of the casing, the lifting seat can be raised and lowered, and the rotating device is arranged on the lifting seat.

[0016] A method for preparing milk, providing the above-mentioned milk preparing device, wherein a first water pump pumps water in a water supply container to a heater, the heater heats the water and outputs the water to a water mixer in one way and to a heat exchange mechanism in another way, and the water is heat exchanged and cooled by the heat exchange mechanism, the water output by the heat exchange mechanism is output to the water mixer in one way and to a constant temperature water tank in another way, the water mixer mixes the water directly input by the heater with the water input by the heat exchange mechanism to obtain mixed water; when preparing milk, the mixed water output by the water mixer is first output through a water outlet to dissolve the milk powder first and obtain initial milk water; thereafter, a second water pump pumps water in the constant temperature water tank to the water outlet, mixes and cools the initial milk water, and replenishes it to a set capacity.

[0017] Furthermore, the amount of mixed water output by the water mixer is 20%-40% of the set capacity.

[0018] Furthermore, the heater heats the water to boiling to obtain boiling water; the heat exchange mechanism cools the boiling water to 45°C-50°C or room temperature by heat exchange; the temperature of the mixed water mixed by the water mixer is 65°C-75°C; the constant temperature water tank cools the water to 10°C-30°C.

[0019] The technical solution provided by the present invention has the following beneficial effects:

[0020] 1. In the design of this scheme, the water mixer mixes the water directly input from the heater with the water input from the heat exchange mechanism, and the mixed water with a higher temperature can be used to make milk first, and the milk powder dissolves quickly; one of the water paths of the heat exchange mechanism flows into the constant temperature water tank, and after the milk powder is dissolved, the low-temperature water in the constant temperature water tank is injected into the initial milk through the water outlet, and the initial milk is mixed and cooled, and then replenished to the set capacity. In this way, the milk powder dissolves quickly and the dissolution effect is good, which effectively reduces the generation of milk foam and the temperature control is more accurate. At the same time, the setting of the constant temperature water tank can store excess water for subsequent use, effectively saving water resources and reducing the power consumption of the device.

[0021] 2. A rotating device is provided in the milk making chamber of the casing, the rotating device is located below the water outlet and is provided with a bottle seat, the bottle seat can be directly placed on the bottle, and the rotation of the rotating device drives the bottle to rotate together, so as to better dissolve the milk powder; and compared with the milk making structure using a mixing chamber in the prior art, the method of brewing milk powder by driving the bottle to rotate by the rotating device does not require the parts of the device to be disassembled, cleaned and disinfected, thereby achieving a cleaning-free effect, and achieving the effect of being able to brew at any time, which greatly improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The figure shows a module connection block diagram of the milk making device in the embodiment;

[0023] Figure 2The figure shows the appearance of the milk making device in the embodiment;

[0024] Figure 3 The internal structure of the milk making device in the embodiment is shown as follows Figure 1 ;

[0025] Figure 4 The internal structure of the milk making device in the embodiment is shown as follows Figure 2 . DETAILED DESCRIPTION

[0026] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] In the description of the present invention, terms such as "up", "down", "left", "right", "front", "back", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0028] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0029] Reference Figures 1 to 4As shown, a milk preparation device provided in this embodiment includes a water supply container 11, a heater 12, a heat exchange mechanism 30, a water mixer 13, a constant temperature water tank 15, a water outlet 14, a first water pump 21 and a second water pump 22. The first water pump 21 is connected between the water supply container 11 and the heater 12 to pump water in the water supply container 11 to the heater 12; the heater 12 heats the input water, and the water outlet end of the heater 12 is respectively connected to the water inlet end of the heat exchange mechanism 30 and the first water inlet of the water mixer 13 to inject the heated water into the heat exchange mechanism 30 and the water mixer 13 respectively. The heat exchange mechanism 30 cools down the water input from the heater 12 by heat exchange. The water outlet end of the heat exchange mechanism 30 is respectively connected to the second water inlet of the water mixer 13 and the constant temperature water tank 15 to inject the water cooled by heat exchange into the water mixer 13 and the constant temperature water tank 15 respectively. The water mixer 13 mixes the water directly input by the heater 12 with the water input by the heat exchange mechanism 30 to obtain mixed water with a higher temperature. The water outlet of the water mixer 13 is connected to the water outlet 14 to directly output the mixed water from the water outlet 14. The water after heat exchange by the heat exchange mechanism 30 is mixed with the water directly output by the heater through the water mixer 13, and the water temperature of the mixed water is between the water temperature heated by the heater and the water temperature of the water output by the heat exchange mechanism 30. The second water pump 22 is connected between the constant temperature water tank 15 and the water outlet 14 to pump the water from the constant temperature water tank 15 to the water outlet 14.

[0030] The present embodiment also provides a method for preparing milk, and provides the above-mentioned milk preparing device, that is, a method for preparing milk based on the above-mentioned milk preparing device; the first water pump 21 pumps water in the water supply container 11 to the heater 12, and the heater 12 heats the water and outputs it to the water mixer 13 in one way and to the heat exchange mechanism 30 in another way, and is heat exchanged and cooled by the heat exchange mechanism 30, and the water output by the heat exchange mechanism 30 is output to the water mixer 13 in one way and to the constant temperature water tank 15 in another way, and the water mixer 13 mixes the water directly input by the heater 12 with the water input by the heat exchange mechanism 30 to obtain mixed water; when preparing milk, the mixed water output by the water mixer 13 is first output through the water outlet 14 to dissolve the milk powder first and obtain the initial milk water; then, the second water pump 22 pumps the water in the constant temperature water tank 15 to the water outlet 14, mixes and cools the initial milk water, and replenishes it to the set capacity.

[0031] In this way, a small amount of mixed water with a relatively high temperature is used to dissolve the milk powder first, and the milk powder dissolves quickly; after the milk powder is dissolved, the low-temperature water in the constant temperature water tank 15 is injected into the initial milk through the water outlet 14 to mix and cool the initial milk, and then replenish it to the set capacity. In this way, the milk powder dissolves quickly and the dissolution effect is good, the generation of milk foam is effectively reduced, and the temperature control is also more accurate. At the same time, the setting of the constant temperature water tank 15 can store excess water for subsequent use, effectively saving water resources and reducing the power consumption of the device.

[0032] Preferably, the amount of mixed water output by the water mixer 13 is 20%-40% of the set capacity (ie, the set milk volume), which can ensure that the milk powder can be completely dissolved without causing excessive water to affect subsequent mixing and temperature adjustment.

[0033] Furthermore, in this embodiment, the constant temperature water tank 15 has a cooling module to cool the water input to the constant temperature water tank 15 so that the output water temperature is lower.

[0034] As in one of the preferred solutions of the present application, taking the brewing of 100 ml of milk as an example, the heater 12 heats the water to boiling to obtain boiling water; boiling water can play a good sterilization role and ensure drinking safety; the heat exchange mechanism 30 cools the boiling water to 45°C-50°C, which is convenient for subsequent mixing and can be quickly cooled to low-temperature water of 10°C-30°C after entering the constant temperature water tank 15; the water mixer 13 mixes the boiling water directly input by the heater 12 and the water input by the heat exchange mechanism 30 to obtain mixed water of 65°C-75°C, and then, The water mixer 13 outputs 30ml of mixed water (i.e., the water volume of the mixed water is 30% of the set volume) to the water outlet 14, so that the milk powder can be quickly dissolved and the nutrition of the milk powder can be well retained; then, the second water pump 22 pumps the low-temperature water of 10℃-30℃ in the constant temperature water tank 15 to the water outlet 14, and outputs it from the water outlet 14, and its output volume is 70ml; thus, by mixing 30ml of mixed water of 65℃-75℃ and 70ml of low-temperature water of 10℃-30℃, the water temperature suitable for drinking (i.e., 35℃-45℃) is reached. The generation of milk foam is effectively reduced, and the temperature control is also more accurate.

[0035] Specifically, the coordinated operation of the above-mentioned components (heater 12, heat exchange mechanism 30, water mixer 13, constant temperature water tank 15, water outlet 14, first water pump 21 and second water pump 22, etc.) can be achieved through the control of a control system in the prior art (such as a PLC control system); this is the prior art and will not be described in detail here.

[0036] Specifically, in this embodiment, the output end of the heater 12, the output end of the heat exchange mechanism 30, and the input end of the water outlet 14 are equipped with three-way valves, specifically three-way solenoid valves. The output end of the heater 12 is connected to the water inlet end of the heat exchange mechanism 30 and the first water inlet of the water mixer 13 through a three-way solenoid valve (defined as the first three-way solenoid valve 41); the output end of the heat exchange mechanism 30 is connected to the second water inlet of the water mixer 13 and the constant temperature water tank 15 through a three-way solenoid valve (defined as the second three-way solenoid valve 42); the water outlet end of the water mixer 13 and the output end of the second water pump 22 are connected to the water outlet 14 through a three-way solenoid valve (defined as the third three-way solenoid valve 43). The three-way solenoid valve can be used to achieve directional and quantitative output or input. That is, directional output or input can be achieved by selecting one of the ways to open, and when the flow rate is constant, the opening time can be controlled to achieve quantitative output or input. Or, quantitative output or input can be achieved by adding an additional flow meter. Of course, in other embodiments, the connection structure of the three-way solenoid valve may not be used.

[0037] Specifically, in this embodiment, the output end of the heater 12, the output end of the heat exchange mechanism 30, and the output end of the water mixer 13 are all equipped with a temperature sensor 50, which is used to detect the output water temperature of the heater 12, the heat exchange mechanism 30, and the water mixer 13, respectively, so as to facilitate regulation according to the detected water temperature. For example, when it is detected that the water temperature output by the heater 12 is low, the power of the heater 12 can be controlled to increase to reach the supplementary water temperature; if it is detected that the water temperature output by the heat exchange mechanism 30 is too high, the water flow rate through the heat exchange mechanism 30 can be controlled to extend the heat exchange time and other methods to reduce the temperature; and when it is detected that the output water temperature of the water mixer 13 is abnormal, the water volume of the first inlet and the second inlet of the water mixer 13 can be controlled to achieve adjustment, etc. The above-mentioned adjustment methods can all be achieved through the control of a control system (such as a PLC control system); this is a prior art and will not be described in detail here.

[0038] The constant temperature water tank 15 specifically includes an insulation box, a cooling module and a temperature control module. The cooling module is mounted on the insulation box to cool the water in the insulation box. The temperature control module detects the water temperature of the insulation box and is connected to the cooling module to control the operation of the cooling module. That is, the temperature control module includes a water temperature detection unit and a temperature control unit. The water temperature detection unit detects the water temperature in the insulation box and outputs it to the temperature control unit. The temperature control unit controls the operation of the cooling module, so that the water in the insulation box stops cooling after it drops to the set temperature, and the insulation box can keep the water warm continuously. Specifically, the cooling module and the temperature control module are both existing technologies. For example, the cooling module uses a semiconductor cooler or a compressor in the existing technology.

[0039] In this embodiment, the constant temperature water tank 15 is provided with a cooling module to further cool the water input after heat exchange to maintain low temperature output. Of course, in other embodiments, if the heat exchange mechanism 30 can cool the heater 12 to room temperature of 10°C-30°C, the constant temperature water tank 15 may not use a cooling module, and directly store and output the room temperature water input after heat exchange at a constant temperature; even if the constant temperature water tank 15 is equipped with a cooling module, the cooling module may not work in this case.

[0040] The heat exchange mechanism 30 includes a heat exchanger 31, a cooling water tank 32 and a third water pump 33. The heat exchanger 31 and the cooling water tank 32 are connected to form a circulating cooling channel. The third water pump 33 is mounted on the cooling channel. The heat exchanger 31 also has a heat exchange channel in thermal contact with the cooling channel. The two ends of the heat exchange channel serve as the water inlet and the water outlet of the heat exchange mechanism 30, that is, the two ends of the heat exchange channel are connected to the first three-way solenoid valve 41 and the second three-way solenoid valve 42, respectively. The water heated and output by the heater 12 flows through the heat exchange channel, and the cooling water of the cooling water tank 32 circulates in the cooling channel under the action of the third water pump 33, thereby heat-exchange cooling the boiling water in the heat exchange channel. In this way, the structure is simple. Of course, in other embodiments, the water flow from the water supply container 11 to the heater 12 can also be directly used for cooling, which not only plays a role in heat-exchange cooling of the boiling water, but also can preheat the clean water flowing into the heater, thereby reducing the power consumption of the heater 12.

[0041] Specifically, it also includes a casing 70, and the water supply container 11, the heater 12, the heat exchange mechanism 30, the water mixer 13, the constant temperature water tank 15, the first water pump 21 and the second water pump 22 are all assembled in the casing 70. The casing 70 has a milk-making chamber 71, and the water outlet 14 is arranged on the top of the milk-making chamber 71. In this way, the overall layout can be achieved to form an all-in-one machine. The casing 70 is provided with an operation panel 16 (with a milk volume setting function and a starting device), and the operation panel 16 is connected to the control system. When the starting device of the operation panel is pressed, the control system receives a signal and controls the coordinated operation of various components to achieve automatic milk making. Specifically, the structure of the operation panel 16 and the connection between the operation panel 16 and the control system are both prior arts and will not be described in detail here.

[0042] Furthermore, in this embodiment, a rotating device 60 is provided in the milk-making cavity 71 of the housing 70, and the rotating device 60 is located below the water outlet 14 and is provided with a bottle holder. When in use, the milk bottle 1 is placed in the bottle holder; when making milk, the rotating device 60 drives the milk bottle 1 to rotate together, so as to better dissolve the milk powder; and compared with the milk-making structure with a self-contained mixing chamber in the prior art, the method of driving the milk bottle 1 to rotate by the rotating device 60 to make milk powder does not require the parts of the device to be disassembled, cleaned and disinfected, so as to achieve the effect of no need for cleaning, so that the milk can be made at any time, which greatly improves the user experience. Specifically, the rotating device 60 can be directly realized by a rotating motor.

[0043] Furthermore, a lifting seat 61 is further provided in the milk-making chamber 71 of the housing 70, and the lifting seat 61 can be raised and lowered, and the rotating device 60 is provided on the lifting seat 61. The setting of the lifting seat 61 can be raised and lowered according to the milk bottles 1 of different heights, so that the milk bottles 1 can be placed better. Specifically, the lifting drive mode of the lifting seat 61 can be manual lifting, or it can be driven by a lifting driver such as a lifting cylinder.

[0044] Further preferably, in order to prevent milk from overflowing from the opening of the feeding bottle 1 when preparing milk, in this embodiment, a cap 141 is provided on the water outlet 14, and the cap 141 is used to cover the opening of the feeding bottle 1, so as to prevent milk from overflowing from the opening of the feeding bottle 1 when preparing milk.

[0045] Of course, in other embodiments, the milk-making device is not limited to the above-mentioned rotating device 60 and lifting seat 61. For example, a mixing chamber is provided in the milk-making chamber 71 of the housing 70, a stirring rod is provided in the mixing chamber, the mixing chamber is detachably mounted on the water outlet 14, and an openable door is provided at the bottom of the mixing chamber. When making milk, the milk is stirred in the mixing chamber by the stirring rod, and after the milk is made, the milk flows out from the bottom of the mixing chamber.

[0046] Specifically, the milk making device provided by the present solution can directly make milk from milk powder on the market, and can also make milk from compressed milk blocks.

[0047] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A milk making device, characterized in that: It includes a water supply container, a heater, a heat exchange mechanism, a water mixer, a constant temperature water tank, a water outlet, a first water pump and a second water pump. The first water pump is connected between the water supply container and the heater to pump water in the water supply container to the heater; the water outlet end of the heater is respectively connected to the water inlet end of the heat exchange mechanism and the first water inlet of the water mixer to inject the heated water into the heat exchange mechanism and the water mixer respectively, the water outlet end of the heat exchange mechanism is respectively connected to the second water inlet of the water mixer and the constant temperature water tank to inject the water after heat exchange and cooling into the water mixer and the constant temperature water tank respectively, and the water outlet end of the water mixer is connected to the water outlet; the second water pump is connected between the constant temperature water tank and the water outlet to pump water in the constant temperature water tank to the water outlet.

2. The milk preparing device according to claim 1, characterized in that: The constant temperature water tank specifically includes an insulation box body, a cooling module and a temperature control module. The cooling module is assembled on the insulation box body to cool the water in the insulation box body. The temperature control module detects the water temperature of the insulation box body and is connected to the cooling module to control the operation of the cooling module.

3. The milk preparing device according to claim 1, characterized in that: The heat exchange mechanism includes a heat exchanger, a cooling water tank and a third water pump. The heat exchanger and the cooling water tank are connected to form a circulating cooling channel, and the third water pump is installed on the cooling channel. The heat exchanger also has a heat exchange channel in thermal contact with the cooling channel, and the two ends of the heat exchange channel serve as the water inlet and outlet of the heat exchange mechanism respectively.

4. The milk preparing device according to claim 1, characterized in that: The water outlet end of the heater, the water outlet end of the heat exchange mechanism and the water outlet end of the water mixer are all equipped with temperature sensors.

5. The milk preparing device according to claim 1, characterized in that: It also includes a casing, in which the water supply container, heater, heat exchange mechanism, water mixer, constant temperature water tank, first water pump and second water pump are all assembled. The casing has a milk-making chamber, and the water outlet is arranged at the top of the milk-making chamber.

6. The milk preparing device according to claim 5, characterized in that: A rotating device is arranged in the milk-making cavity of the casing, and the rotating device is located below the water outlet and is provided with a milk bottle seat.

7. The milk preparing device according to claim 6, characterized in that: A lifting seat is also arranged in the milk-making cavity of the casing, and the lifting seat can be raised and lowered, and the rotating device is arranged on the lifting seat.

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