Efficient milk foaming and heating device

Abstract

The utility model relates to an efficient milk foaming heating device which comprises a cover body, a milk cylinder, a stirring assembly and a heating assembly, the cover body comprises an upper cover and a lower cover which are fixedly connected, a working mainboard and a driving motor are arranged between the upper cover and the lower cover, the stirring assembly comprises a stirring rod and a stirring spring ring, and the top end of the stirring rod is connected with the driving motor and penetrates out of the lower cover; a heating circular ring is arranged at the bottom of the heating assembly, and when the cover body covers the milk cylinder, the heating assembly can heat the interior of milk. The milk foaming device has foaming and heating functions, and the stirring assembly is tightly connected with the motor, so that direct drive of the motor is realized, the transmission efficiency is improved, and the noise is reduced; the stirring spring ring is centrally stirred in the milk cylinder, the milk is uniformly foamed, and the foaming efficiency is high; the heating ring is centrally heated in the milk cylinder, all positions of milk are uniformly heated, and the heat transfer efficiency is high; when the cover body is detached from the milk cylinder, the stirring assembly and the heating assembly can be rapidly detached at the same time, and a user can conveniently clean the milk cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, in particular to a high-efficiency milk frothing heating device. Background Art

[0002] As people's living standards improve, coffee has gradually become a mainstream choice of daily beverages. When enjoying coffee, many consumers tend to add a layer of fine milk foam on the surface of the coffee, which not only gives the coffee a richer taste, but also significantly improves the overall drinking experience of coffee. Although the traditional electric milk frother uses electric stirring to produce milk foam, its structure is relatively complex, especially the milk tank does not have a built-in stirring head, which makes it very troublesome to clean the milk tank, affecting the user experience to a certain extent.

[0003] China Utility Model Patent Publication No. CN202457888U discloses an electric milk bubble device, including a cup body, a cover body engaged with the cup body, a motor is arranged inside the cover body, the motor is connected to a stirring assembly through a transmission assembly, and when the cover body is connected to the cup body, the stirring assembly extends into the cup body from top to bottom. When cleaning is required after use, the cover body and the cup body are separated, and the stirring assembly at the bottom of the cover body is pulled out from the cup body, so that the cup body can be easily cleaned.

[0004] However, the above-mentioned milk frothing device does not have a heating component and has a single function, and can only produce cold milk froth. Therefore, people thought of setting a heating tube at the bottom of the cover body. When the cover body is engaged with the cup body, the stirring component and the heating component can both extend into the cup body from top to bottom. For example, a milk frother disclosed in Chinese utility model patent publication number CN208973456U includes a milk cup and a main body covered on the milk cup, and the main body is equivalent to the cover body of the milk cup; a stirring device and a heating rod are provided at the bottom of the main body, both of which can extend into the milk cup when the main body is connected to the milk cup. However, this milk frother is only provided with a heating rod on one side of the stirring rod, and the heat transfer efficiency is low. In addition, in order to set the heating rod, the stirring device is designed to deviate from the center of the cup, which also affects the milk frothing efficiency.

[0005] Therefore, there is an urgent need to design a milk frothing device with heating function and high heat transfer efficiency and frothing efficiency to fill the market gap. Utility Model Content

[0006] In order to solve the problem that the stirring structure and the heating rod of the existing milk frother with heating function cannot be centered in the milk tank, resulting in poor milk frothing efficiency and low heat transfer efficiency, the utility model provides a high-efficiency milk frothing heating device.

[0007] The technical solution of the utility model is as follows:

[0008] An efficient milk foaming and heating device, comprising a cover body, a milk tank, a stirring assembly and a heating assembly. The cover body is detachably covered on the milk tank. The cover body includes an upper cover and a lower cover which are fixedly connected. A working main board and a driving motor are arranged in the cavity between the upper cover and the lower cover. The stirring assembly includes a stirring rod. The top end of the stirring rod is connected to the driving motor and passes through the center of the lower cover, and a stirring spring ring is sleeved on the bottom end thereof. The heating assembly is fixed to the bottom surface of the lower cover, and a heating part is arranged at the bottom of the heating assembly. The heating part extends to directly below the center of the lower cover. When the cover body is covered on the milk tank, the heating part is immersed in the milk liquid in the milk tank so that the heating assembly heats inside the milk liquid.

[0009] By adopting the above technical solution, when the cover body is covered on the milk tank, the stirring spring ring and the heating part on the bottom surface of the lower cover both extend into the milk tank and are located at the middle position of the milk tank. After starting the stirring assembly and the heating assembly, the stirring spring ring stirs the milk liquid at the middle position of the milk tank, and at the same time the heating part heats at the middle of the milk liquid, and both the stirring efficiency and the heat transfer efficiency are effectively improved.

[0010] According to the present utility model of the above solution, it is characterized in that a motor groove is provided in the middle of the lower cover. The bottom of the motor groove protrudes downward to form a rod groove, and a through hole is provided at the bottom of the rod groove. The driving motor is installed in the motor groove, and its output shaft extends into the rod groove. The top end of the stirring rod passes through the through hole at the bottom of the rod groove and is connected to the output shaft.

[0011] Further, a transmission shaft is arranged in the rod groove, and the stirring rod is connected to the output shaft through the transmission shaft.

[0012] Even further, a sealing ring is provided in the through hole.

[0013] According to the present utility model of the above solution, it is characterized in that the bottom end of the stirring rod is bent into a circular fixing ring, and the stirring spring ring is sleeved on the fixing ring.

[0014] Preferably, the heating part is a heating ring, and the stirring spring ring is located at the center of the ring opening of the heating ring.

[0015] According to the present utility model of the above solution, it is characterized in that the heating assembly is connected to the bottom of the cover body through a connecting rod part, and the connecting rod part is bent downward to form the heating ring.

[0016] Further, the connecting rod part includes two parallel connecting rod bodies. Two connecting holes are provided on one side of the lower cover, and the two rod bodies are correspondingly connected to the two connecting holes.

[0017] Further, the heating component includes a heating wire, an insulating sleeve, a thermal fuse, and a resistor. The heating wire is disposed within the heating ring, the thermal fuse and the resistor are disposed within the insulating sleeve, the insulating sleeve is disposed within the connecting rod body, and the heating wire is electrically connected to the working main board through the thermal fuse and the resistor.

[0018] For the present utility model according to the above solution, it is characterized in that the panel of the upper cover is provided with a plurality of function buttons, and the function buttons include a power button, a milk foam thickness selection button, a heating start button, and a chocolate making button.

[0019] For the present utility model according to the above solution, it is characterized in that the milk jug is a latte art jug, and a diversion groove is provided at the spout of the latte art jug.

[0020] The beneficial effects of the present utility model according to the above solution are as follows:

[0021] In the present utility model, the drive motor is fixed inside the cover body and is centered. The stirring rod penetrates from the center of the lower cover and is tightly connected to the drive motor to achieve direct drive of the motor. Moreover, the stirring spring coil is located exactly in the center of the milk jug, improving the stirring efficiency, thereby contributing to improving the milk foaming efficiency. The heating component is disposed on one side of the lower cover, and the heating part at its bottom extends to directly below the center of the cover body. When the cover body is covered on the milk jug, the heating part of the heating component is immersed in the milk liquid, realizing heating from the central position inside the milk liquid. Compared with the structures of traditional devices with bottom heating or side heating of the device, the present utility model has a higher heat transfer efficiency.

[0022] Both the stirring component and the heating component of the present utility model are disposed at the bottom of the cover body. When the cover body is installed on the milk jug, the foaming and / or heating functions can be carried out, which is convenient for operation and use. When the cover body is removed from the milk jug, the stirring component and the heating component can be simultaneously separated from the milk jug, facilitating the cleaning of the milk jug. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present utility model;

[0024] Figure 2 is a schematic structural diagram of the present utility model after removing the milk jug;

[0025] Figure 3 is an exploded view of a partial structure of the cover body;

[0026] Figure 4 is an exploded view of the stirring component;

[0027] Figure 5 is an exploded view of the heating component.

[0028] In the figures,

[0029] 1. Cover body; 11. Upper cover; 111. Function button; 12. Lower cover; 121. Motor slot; 122. Rod slot; 123. Perforation; 13. Driving motor; 14. Working main board; 15. Transmission shaft;

[0030] 2. Stirring assembly; 21. Stirring rod; 22. Stirring spring coil;

[0031] 3. Heating assembly; 31. Connecting rod body; 311. Insulating tube; 312. Temperature fuse; 32. Heating ring; 321. Heating wire;

[0032] 4. Milk jug; 41. Jug spout; 42. Flow guide groove. Detailed implementation mode

[0033] In order to better understand the purpose, technical solution and technical effect of the present utility model, the present utility model will be further explained below with reference to the drawings and embodiments. It should be noted that: similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, it is stated that the embodiments described below are only used to explain the present utility model and are not used to limit the present utility model.

[0034] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0035] The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing this application and simplifying the description, 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 to this application.

[0036] The terms "first" and "second" are only used for the purpose of convenient description and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of technical features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0037] Such as Figure 1 And Figure 2As shown in the figure, an efficient milk foaming and heating device has a milk foaming function and a heating function. During the milk foaming process, the stirring rod and the stirring spring coil stir in the center of the milk tank, the milk liquid foams evenly, and the foaming speed is fast and the efficiency is high; the heating part of the heating component heats in the center of the milk tank, and the milk liquid is evenly heated at each position, and the heat transfer efficiency is high. Its specific structure includes a cover body and a milk tank. The cover body is directly covered on the milk tank for use. The stirring component and the heating component are both arranged at the bottom of the cover body. When the cover body is installed on the milk tank, the foaming and / or heating functions can be carried out, and the operation is convenient; when the cover body is removed from the milk tank, the stirring component and the heating component can be separated from the milk tank at the same time, which is convenient for cleaning the milk tank.

[0038] As Figure 3 and Figure 4 shown in the figure, in the present utility model, the cover body 1 includes an upper cover 11 and a lower cover 12. The upper cover 11 and the lower cover 12 are fixedly connected and non-detachable, and a cavity is formed between the two. The working main board 14 and the driving motor 13 of the device are installed in this cavity. One side of the upper cover 11 is connected with a power cord and a power plug. The upper cover 11 is designed in a frustum shape, with a smaller upper end for easy grasping by the user, and the diameter of the lower end is slightly larger than the diameter of the milk tank 4, which can well adapt to the milk tank 4. The panel of the upper cover 11 is provided with several function keys 111, and the function keys 111 include a power key, a milk foam thickness selection key, a heating start key, and a chocolate making key. The power key is used to start or stop the device. After starting the device, each time the milk foam thickness selection key is pressed, it switches between "thick milk foam" and "thin milk foam"; each time the heating start key is pressed, it switches between "hot milk" and "cold milk foam"; each time the heating start key is pressed, it switches between "hot milk" and "cold milk foam"; when making chocolate paste is needed, press the chocolate making key.

[0039] There is a motor slot 121 in the middle of the lower cover 12, and the driving motor 13 is installed in the motor slot 121, so that the driving motor 13 is placed in the center of the cover body 1, which is beneficial for the motor to directly drive the stirring rod 21. After the driving motor 13 is placed in the motor slot 121, a motor cover is used to tighten and fix it to the groove wall of the motor slot 121 with bolts to ensure that the driving motor 13 does not shake in the motor slot 121. The bottom of the motor slot 121 protrudes downward to form a rod slot 122, and the output shaft of the driving motor 13 extends into the rod slot 122. There is a perforation 123 at the bottom of the rod slot 122, and the top end of the stirring rod 21 passes through the perforation 123 into the rod slot 122 and is connected to the output shaft of the driving motor 13. The output shaft and the stirring rod 21 are connected by a transmission shaft 15, and the transmission shaft 15 is just placed in the rod slot 122.

[0040] In order to protect the components in the cover body 1 from being contaminated by milk liquid or other foaming liquids, a sealing ring is provided at the perforation 123, and the stirring rod 21 passes through the sealing ring and then passes out of the rod slot 122.

[0041] The stirring assembly 2 includes a stirring rod 21 and a stirring spring coil 22 sleeved on the bottom end of the stirring rod 21. From the above structure, it can be seen that the top end of the stirring rod 21 is connected to the driving motor 13 and passes through the center of the lower cover 12. In addition, the bottom end of the stirring rod 21 is bent into a circular fixing ring, the stirring spring coil 22 is sleeved on the fixing ring, and the axis of the stirring rod 21 passes through the center of the stirring spring coil 22. When the stirring rod 21 rotates, the stirring spring coil 22 rotates around the axis of the stirring rod 21, and the elastic force of the spring is used to improve the foaming efficiency.

[0042] As Figure 5 shown, the heating assembly 3 includes a stainless steel housing, a heating wire 321, an insulating sleeve, a temperature fuse 312 and a resistor. The stainless steel housing has two parallel connecting rod bodies 31. The bottoms of the two connecting rod bodies 31 are connected and bent to form a heating ring 32. The heating wire 321 is arranged in the heating ring 32. Each connecting rod body 31 is provided with an insulating sleeve, and the temperature fuse 312 and the resistor are arranged inside the insulating sleeve. Therefore, the insulating sleeve is used to isolate the external stainless steel housing and the internal electronic components.

[0043] In this embodiment, the heating part adopts a circular ring structure, and other polygonal structures such as quadrilateral and triangle can also be adopted.

[0044] The heating assembly 3 is fixedly connected to the cover body 1 through the connecting rod body 31. Specifically, two connecting holes are provided on one side of the lower cover 12, and the two connecting rod bodies 31 are respectively connected to the two connecting holes correspondingly, so that the temperature fuse 312 and the resistor in the connecting rod body 31 penetrate into the cover body 1 and are electrically connected to the working main board 14, so that the heating wire 321 is electrically connected to the working main board 14 through the temperature fuse 312 and the resistor.

[0045] Although the connecting rod body 31 is arranged on one side of the lower cover 12, the heating ring 32 at its bottom can be centered below the center of the lower cover 12 after being bent and formed, so that the heating ring 32 and the stirring spring coil 22 are both located directly below the center of the lower cover 12.

[0046] In the present utility model, the milk jug 4 is a professional latte jug. A handle is provided on one side of the latte jug, a spout 41 is provided on the other side, and a diversion groove 42 is provided between the spout 41 and the jug body to assist the user in latte art operation.

[0047] In summary, the milk frothing device of the present utility model has the functions of foaming and heating, and the driving motor is firmly fixed in the cover body. It has the advantage of low noise during operation, and the motor directly drives the stirring rod at the center of the lower cover, with small transmission loss. The stirring spring coil stirs in the center of the milk jug, the milk liquid foams evenly, and the foaming efficiency is high; the heating ring heats in the center of the milk jug, the milk liquid is evenly heated at each position, and the heat transfer efficiency is high. The cover body can be detached from the milk jug, and the stirring assembly and the heating assembly can be quickly detached simultaneously, which is convenient for the user to clean the milk jug.

[0048] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0049] The above embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. An efficient milk foaming and heating device, comprising a cover body, a milk cylinder, a stirring assembly and a heating assembly, characterized in that, The cover body includes an upper cover and a lower cover which are fixedly connected. A working main board and a driving motor are arranged in the cavity of the cover body; The stirring assembly includes a stirring rod. The top end of the stirring rod is connected to the driving motor and passes through the center of the lower cover, and a stirring spring ring is sleeved on its bottom end; The heating assembly is fixed to the bottom surface of the lower cover, and a heating part is arranged at the bottom of the heating assembly. The heating part extends to directly below the center of the lower cover. When the cover body is covered on the milk jug, the heating part is immersed in the milk liquid in the milk jug so that the heating assembly heats inside the milk liquid.

2. The high-efficiency milk foaming and heating device according to claim 1, wherein A motor slot is arranged in the middle of the lower cover. The bottom of the motor slot protrudes downward to form a rod slot, and a perforation is arranged at the bottom of the rod slot. The driving motor is installed in the motor slot, and its output shaft extends into the rod slot. The top end of the stirring rod passes through the perforation at the bottom of the rod slot and is connected to the output shaft.

3. An efficient milk foaming and heating device according to claim 2, characterized in that, A transmission shaft is arranged in the rod slot, and the stirring rod is connected to the output shaft through the transmission shaft.

4. An efficient milk foaming and heating device according to claim 2 or 3, characterized in that A sealing ring is arranged in the perforation.

5. An efficient milk foaming and heating device according to claim 1, characterized in that, The bottom end of the stirring rod is bent into a circular fixing ring, and the stirring spring ring is sleeved on the fixing ring.

6. An efficient milk foaming and heating device according to claim 1 or 5, characterized in that, The heating part is a heating ring, and the stirring spring ring is located at the center of the ring opening of the heating ring.

7. An efficient milk foaming and heating device according to claim 6, characterized in that, The heating assembly is connected to the bottom of the cover body through a connecting rod part, and the connecting rod part is bent downward to form the heating ring.

8. An efficient milk foaming and heating device according to claim 7, characterized in that, The connecting rod part includes two parallel connecting rod bodies. The heating assembly includes a heating wire, an insulating sleeve, a temperature fuse and a resistor. The heating wire is arranged in the heating ring. The temperature fuse and the resistor are arranged in the insulating sleeve. The insulating sleeve is arranged in the connecting rod body, and the heating wire is electrically connected to the working main board through the temperature fuse and the resistor.

9. An efficient milk foaming and heating device according to claim 1, characterized in that, Several function keys are arranged on the panel of the upper cover. The function keys include a power key, a milk foam thickness selection key, a heating start key and a chocolate making key.

10. An efficient milk foaming and heating device according to claim 1, characterized in that, The milk jug is a latte art jug, and a diversion groove is arranged at the spout of the latte art jug.

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