Milk foam machine

Abstract

The invention discloses a milk foam machine which comprises a whipping container used for containing liquid, a main machine base and a stirring piece, a heating area is arranged on the top of the main machine base, and the whipping container is arranged on the heating area; the main machine base comprises a main machine shell, an electromagnetic coil and a stirring driving device, a device mounting support is arranged in the main machine shell and divided into a stirring driving area and an annular coil area surrounding the stirring driving area, and the stirring driving device is arranged on the stirring driving area; the top surface of the device installation support is provided with a coil groove body, and the electromagnetic coil is arranged in the coil groove body. According to the invention, the container can be directly heated, the time required for heating is effectively shortened, the heating is uniform, and the influence on the working performance and the service life of the stirring driving device can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of beverage making equipment, and particularly relates to a milk frother. BACKGROUND

[0002] In the prior art milk frother, the heating mode for milk or other liquid beverages is generally to heat the bottom plate for supporting the container by using a heating device such as a heating tube or a heating wire, and then to heat the bottom of the container by using the heated bottom plate. The indirect heating mode may cause slow heating of the liquid in the container, and the heat conduction between the container and the bottom plate may be affected by the contact surface, and thus the heat transfer may be uneven. SUMMARY

[0003] The present application aims to provide a milk frother which can directly heat the container and uniformly heat the container, and can reduce the influence on the operation and service life of the stirring driving device.

[0004] In order to solve the above technical problems, the present application provides a milk frother, which comprises a whipping container for containing liquid, a main base and a stirring member arranged in the whipping container. The top of the main base is provided with a heating area for placing the whipping container, and the whipping container is arranged on the heating area.

[0005] The main base comprises a main base shell, an electromagnetic coil corresponding to the heating area and a stirring driving device for driving the stirring member to rotate. The main base shell is provided with a device mounting bracket. The device mounting bracket is divided into a stirring driving area and an annular coil area surrounding the stirring driving area. The stirring driving device is arranged on the stirring driving area.

[0006] The top surface of the device mounting bracket is provided with a coil groove body matched with the electromagnetic coil in the annular coil area. The electromagnetic coil is arranged in the coil groove body.

[0007] As an improvement of the above-mentioned scheme, the bottom surface of the device mounting bracket is provided with an electromagnetic shielding member corresponding to the electromagnetic coil, so as to electromagnetically shield the lower part of the electromagnetic coil.

[0008] The stirring driving area is provided with an electromagnetic shielding ring corresponding to the electromagnetic coil, so as to electromagnetically shield the direction of the electromagnetic coil towards the stirring driving device.

[0009] As an improvement of the above-mentioned scheme, the device mounting bracket is provided with a plurality of heat dissipation holes in the annular coil area, so as to form a grid plate.

[0010] As an improvement of the above-mentioned scheme, the bottom surface of the device mounting bracket is provided with a bottom surface shielding groove for limiting the mounting position of the electromagnetic shielding member. The electromagnetic shielding member is arranged in the bottom surface shielding groove.

[0011] As an improvement of the above-mentioned scheme, the stirring driving device comprises a motor and a driving member for driving the stirring member to rotate, the motor is arranged on the bottom surface of the device mounting support, the driving member is arranged above the device mounting support, and the output shaft of the motor is connected with the driving member through the device mounting support.

[0012] As an improvement of the above-mentioned scheme, the driving member comprises a rotating seat and a first magnet, the rotating seat is symmetrically provided with the first magnet on both sides thereof;

[0013] The stirring member is provided with a second magnet which is magnetically attracted to the first magnet, so as to rotate with the rotating seat;

[0014] The bottom of the whipping container is provided with a fixing shaft for mounting the stirring member, and the stirring member is provided with a shaft hole through which the fixing shaft passes.

[0015] As an improvement of the above-mentioned scheme, the device mounting support is provided with a protective sleeve which encloses the driving member, and the electromagnetic shielding ring is arranged outside the protective sleeve;

[0016] The projection of the first magnet of the stirring member on the device mounting support is located in the electromagnetic shielding ring.

[0017] As an improvement of the above-mentioned scheme, the stirring member is provided with a stirring ring for stirring, the stirring ring comprises a spring and a shaping strip, the shaping strip is inserted into the spring, and the spring is changed into a ring shape by bending the shaping strip into a ring shape.

[0018] As an improvement of the above-mentioned scheme, the stirring member is made of a metal material;

[0019] The projection of the stirring member on the device mounting support is at least partially located outside the electromagnetic shielding ring.

[0020] As an improvement of the above-mentioned scheme, the whipping container is provided with a turbulence block, the outer sidewall of the whipping container is provided with a magnetic driving block, and the turbulence block is provided with a third magnet for magnetically attracting the magnetic driving block.

[0021] As an improvement of the above-mentioned scheme, the outer sidewall of the whipping container is provided with a stroke limiting seat for limiting the lifting stroke of the magnetic driving block, the stroke limiting seat is provided with a stroke slot for the lifting movement of the magnetic driving block, and the magnetic driving block is slidingly connected to the stroke slot so as to move along the stroke slot.

[0022] The implementation of the present application has the following beneficial effects:

[0023] The application discloses a milk frother, which comprises a whipping container for containing liquid, a main base and a stirring piece, and a heating area is arranged on the top of the main base; the main base comprises a main base shell, an electromagnetic coil corresponding to the heating area and a stirring driving device for driving the stirring piece to rotate, so that the heating of the whipping container can be realized by forming a vortex on the whipping container through the magnetic field change generated by the electromagnetic coil.

[0024] Moreover, a device mounting bracket is arranged in the main base shell, the device mounting bracket is divided into a stirring driving area and an annular coil area surrounding the stirring driving area, the stirring driving device is arranged on the stirring driving area, and a coil groove is arranged on the top surface of the device mounting bracket in the annular coil area, and the electromagnetic coil is arranged in the coil groove, so that the influence of the electromagnetic coil on the stirring driving device is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 FIG. 1 is a schematic view of the three-dimensional structure of the milk frother of the application;

[0026] Figure 2 FIG. 2 is a schematic view of the structure of the main base of the application;

[0027] Figure 3 FIG. 3 is a schematic view of the cross-sectional structure of the milk frother of the application;

[0028] Figure 4 FIG. 4 is a schematic view of the structure of the device mounting bracket of the application;

[0029] Figure 5 FIG. 5 is a schematic view of the structure of the stirring piece and the stirring ring of the application. DETAILED DESCRIPTION

[0030] In order to make the object, technical scheme and advantages of the application more clear, the application will be further described in detail below with reference to the drawings.

[0031] Referring to Figure 1 , 2 and 3, the application provides a milk frother, which comprises a whipping container 1 for containing liquid, a main base 2 and a stirring piece 3 arranged in the whipping container 1, a heating area 2a for placing the whipping container 1 is arranged on the top of the main base 2, and the whipping container 1 is arranged on the heating area 2a.

[0032] The main base 2 comprises a main base shell 21, an electromagnetic coil 22 corresponding to the heating area 2a and a stirring driving device 23 for driving the stirring piece 3 to rotate, a device mounting bracket 4 is arranged in the main base shell 21, the device mounting bracket 4 is divided into a stirring driving area 4a and an annular coil area 4b surrounding the stirring driving area 4a, the stirring driving device 23 is arranged on the stirring driving area 4a,

[0033] On the annular coil area 4b, the top surface of the device mounting bracket 4 is provided with a coil groove 41 matched with the electromagnetic coil 22, and the electromagnetic coil 22 is arranged in the coil groove 41;

[0034] In order to further reduce the influence of the electromagnetic coil 22 on the devices in the main shell 21, such as the stirring driving device or other electronic devices, the bottom surface of the device mounting bracket 4 is provided with an electromagnetic shield 5 corresponding to the electromagnetic coil 22 to electromagnetically shield the lower part of the electromagnetic coil 22.

[0035] The stirring driving area 4a is provided with an electromagnetic shield ring 6 corresponding to the electromagnetic coil 22 to electromagnetically shield the electromagnetic coil 22 towards the stirring driving device 23.

[0036] Preferably, the electromagnetic shield 5 and the electromagnetic shield ring 6 are made of non-magnetized magnets. It should be noted that the heating principle of the electromagnetic coil is that the electromagnetic coil is usually composed of an insulated coil or an elongated coil. When the current through the electromagnetic coil changes, the magnetic field generated will pass through the nearby conductor. The heat generated by the induced current in the conductor depends on the strength of the current, the resistance of the conductor and the rate of change of the magnetic field. Therefore, by controlling the current size and the rate of change, the heat received by the conductor can be adjusted, that is, the heating efficiency of the whipping container can be controlled, and the heating is uniform.

[0037] Referring to Figure 4 , the device mounting bracket 4 is mainly made of materials with poor thermal conductivity, such as plastic, rubber, etc. Therefore, in order to improve the heat dissipation of the electromagnetic coil 22, the device mounting bracket 4 is provided with a plurality of heat dissipation holes 42 on the annular coil area 4b to form a grid plate. The bottom surface of the device mounting bracket 4 is provided with a bottom surface shielding groove 43 defining the mounting position of the electromagnetic shield 5, and the electromagnetic shield 5 is arranged in the bottom surface shielding groove 43. The electromagnetic shield 5 is made of metal material and has good heat dissipation to improve the heat dissipation by the electromagnetic shield 5.

[0038] The stirring driving device 23 includes a motor 231 and a driving member 232 for driving the stirring member 3 to rotate, the motor 231 is arranged on the bottom surface of the device mounting bracket 4, the driving member 232 is located above the device mounting bracket 4, and the output shaft 2311 of the motor 231 penetrates the device mounting bracket 4 and is connected with the driving member 232. Therefore, the motor 231 is located below the side of the electromagnetic coil 22, and the electromagnetic shield ring 6 also has a lateral shielding effect, which can greatly reduce the influence of the electromagnetic coil 22 on the motor 231, so as to avoid the problem of serious heating of the motor 231 caused by the influence of the electromagnetic coil 22.

[0039] In terms of driving the stirring member 3, the driving member 232 comprises a rotating seat 2321 connected with the output shaft 2311 of the motor 231 and first magnets 2322 symmetrically arranged on both sides of the rotating seat 2321; the stirring member 3 is provided with second magnets 31 magnetically attracted to the first magnets 2322 to rotate with the rotating seat 2321. Preferably, the rotating seat 2321 is provided with magnet grooves 2323 for mounting the second magnets 31, and the groove of the magnet groove 2323 is provided with buckles 2324 for limiting the second magnets 31 from being separated from the magnet grooves.

[0040] In order to facilitate the installation and removal of the stirring member 3 for cleaning, the bottom of the whipping container 1 is provided with a fixing shaft 11 for mounting the stirring member 3, and the stirring member 3 is provided with a shaft hole 32 for the fixing shaft 11 to pass through.

[0041] The device mounting bracket 4 is provided with a protective sleeve 44 enclosing the driving member 232 to prevent accidental parts from flying out of the high-speed rotating driving member 232. Preferably, the electromagnetic shielding ring 6 is sleeved outside the protective sleeve 44 to facilitate the installation of the electromagnetic shielding ring 6, and can also more specifically shield and protect the driving member 232. Correspondingly, the projection of the first magnet 2322 of the stirring member 3 on the device mounting bracket 4 is located within the electromagnetic shielding ring 6. To reduce the influence of the electromagnetic coil 22 on the first magnet 2322 during operation.

[0042] Referring to Figure 5 The stirring member 3 is sleeved with a stirring ring for stirring, which comprises a spring 7 and a shaping strip 8, the shaping strip 8 is inserted into the spring 7, and the spring 7 becomes annular by bending the shaping strip 8 into a ring shape. The shaping strip 8 is preferably a metal strip. Based on the small and dense gap of the spring 7, especially after being bent into a ring shape, the inner gap is extremely small and not easy to clean, and it is easy to breed after beverage residues. By using the shaping strip 8 to shape the spring 7 into a ring shape, the spring 7 can be manually pulled out for cleaning when cleaning is needed. Preferably, the side wall of the stirring member 3 is provided with an inner concave arc surface 33 to prevent the stirring ring from moving up and down.

[0043] In order to heat the beverage more evenly, the stirring member 3 is made of metal material; the projection of the stirring member 3 on the device mounting support 4 has at least part of the projection located outside the electromagnetic shielding ring 6. In this way, the spring 7 or the shaping strip 8 can be heated under the heating action of the electromagnetic coil 22, so that the stirring ring can give the whole beverage a uniform heating effect during stirring, avoiding a large temperature difference between the bottom liquid and the middle and upper liquid in the whipping container 1, and further accelerating the overall temperature rising rate of the beverage.

[0044] On the other hand, in order to enable the milk or other liquid in the whipping container 1 to form milk foam for latte art, the whipping container 1 is provided with a turbulence block 9, the outer side wall of the whipping container 1 is provided with a magnetic driving block 12, and the turbulence block 9 is provided with a third magnet 91 for magnetic attraction with the magnetic driving block 12. Therefore, even if the stirring member 3 is in stirring operation, the magnetic driving block outside the whipping container 1 can be adjusted up and down to adjust the thickness of the whipped milk foam according to the actual situation.

[0045] In order to facilitate the lifting movement of the magnetic driving block 12, the side wall of the whipping container 1 is provided with a stroke limiting seat 13 for limiting the lifting stroke of the magnetic driving block 12, the stroke limiting seat 13 is provided with a stroke groove 131 for lifting movement of the magnetic driving block 12, and the magnetic driving block 12 is slidingly connected to the stroke groove 131 to move along the stroke groove 131. Preferably, the stroke distance of the limiting seat 13 can be marked to facilitate the operator to know the height position of the turbulence block in the whipping container 1.

[0046] Preferably, the device mounting support 4 is also provided with a temperature sensing mounting groove for mounting a temperature sensing element, the temperature sensing mounting groove is provided with a temperature sensing element 45 for detecting temperature and an elastic member for upwardly pressing the temperature sensing element, and the heating area of the main shell 21 is provided with a temperature sensing hole 211 for the temperature sensing element to pass out, so that the temperature sensing element 45 can be attached to the bottom surface of the whipping container 1.

[0047] The above describes the preferred embodiments of the present application, and it should be pointed out that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements are also considered within the protection scope of the present application.

Claims

1. A milk frother, characterized in that, The application relates to a whipping container, a main base and a stirring element arranged in the whipping container, wherein the top of the main base is provided with a heating area for placing the whipping container. The main base comprises a main base shell, an electromagnetic coil corresponding to the heating area and a stirring driving device for driving the stirring element to rotate, and the main base shell is provided with an element mounting support, the element mounting support is divided into a stirring driving area and an annular coil area surrounding the stirring driving area, and the stirring driving device is arranged on the stirring driving area. The top surface of the element mounting support is provided with a coil groove body corresponding to the electromagnetic coil on the annular coil area, and the electromagnetic coil is arranged in the coil groove body.

2. A milk frothing machine as claimed in claim 1, characterized in that The bottom surface of the element mounting support is provided with an electromagnetic shielding element corresponding to the electromagnetic coil to electromagnetically shield the lower part of the electromagnetic coil. The stirring driving area is provided with an electromagnetic shielding ring corresponding to the electromagnetic coil to electromagnetically shield the electromagnetic coil in the direction of the stirring driving device.

3. The milk frothing machine according to claim 1, characterized in that, The element mounting support is provided with a plurality of heat dissipation holes on the annular coil area to form a grid plate, and the bottom surface of the element mounting support is provided with a bottom surface shielding groove for limiting the mounting position of the electromagnetic shielding element, and the electromagnetic shielding element is arranged in the bottom surface shielding groove.

4. The milk frothing machine according to claim 1, characterized in that, The stirring driving device comprises a motor and a driving element for driving the stirring element to rotate, the motor is arranged on the bottom surface of the element mounting support, the driving element is located above the element mounting support, and the output shaft of the motor is connected with the driving element through the element mounting support.

5. The milk frother as described in claim 4, characterized in that, The driving element comprises a rotating seat connected with the output shaft of the motor and a first magnet, and the two sides of the rotating seat are symmetrically provided with the first magnet. The stirring element is provided with a second magnet magnetically attracted with the first magnet to rotate with the rotating seat. The bottom of the whipping container is provided with a fixing shaft for mounting the stirring element, and the stirring element is provided with a shaft hole through which the fixing shaft passes.

6. The milk frother as described in claim 5, characterized in that, The element mounting support is provided with a protective sleeve enclosing the driving element, and the electromagnetic shielding ring is arranged outside the protective sleeve. The projection of the first magnet of the stirring element on the element mounting support is located in the electromagnetic shielding ring.

7. The milk frothing machine according to claim 1, characterized in that, The stirring element is provided with a stirring ring for stirring, and the stirring ring comprises a spring and a shaping strip, the shaping strip is inserted into the spring, and the spring is changed into a ring shape by bending the shaping strip into a ring shape.

8. The milk frothing machine according to claim 2, characterized in that, The stirring element is made of metal material. The projection of the stirring element on the element mounting support is located outside the electromagnetic shielding ring.

9. The milk frothing machine according to claim 1, characterized in that, The whipping container is provided with a turbulence block, the outer side wall of the whipping container is provided with a magnetic driving block, and the turbulence block is provided with a third magnet for magnetically attracting the magnetic driving block.

10. The milk frother as described in claim 9, characterized in that, The side wall of the whipping container is provided with a stroke limiting seat for limiting the lifting stroke of the magnetic driving block, the stroke limiting seat is provided with a stroke groove for lifting movement of the magnetic driving block, and the magnetic driving block is slidingly connected to the stroke groove to move along the stroke groove.

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