Cutter heating structure of food processer and food processer thereof

Abstract

The utility model discloses a food processor cutter heating structure which comprises a stirring cup, a stirring cavity is arranged in the stirring cup, a driving assembly is arranged below the stirring cup, a rotary cutter is arranged at the output end of the driving assembly, a first heating unit is arranged on the peripheral side of the stirring cup, the first heating unit comprises a magnetic induction coil, and the magnetic induction coil surrounds the bottom of the stirring cup. The heating device is electromagnetically coupled with the rotary cutter and heats the rotary cutter in a non-contact manner; the driving assembly drives the rotary cutter to rotate in a contact or non-contact mode. According to the utility model, the rotary cutter is heated through electromagnetic induction, eddy current is excited in the rotary cutter, so that the rotary cutter is directly heated, the process of transferring heat through a medium in the heat transfer process is saved, the heating speed is higher, the energy utilization rate is higher, and the heating efficiency is effectively improved; and the rotary cutter is also used for smashing the food during heating, so that the food is in a moving state during heating, and the bottom pasting caused by excessive concentration of heat is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of food processer, concretely relates to a cutter heating structure of food processer and food processer thereof. BACKGROUND

[0002] Food processer as a kind of multifunctional household kitchen utensil, because of its rich features and is welcomed, for example, food processer can be while crushing food, food is heated, to achieve the effect of fast cooking.But most of the existing food processer is heated by heating the bottom of stirring cavity, when food processer is heated quickly, it will cause excessive concentration of heat in the stirring cavity bottom, there is the risk of sticking bottom.

[0003] In prior art, such as the patent document with announcement number CN206462890U, discloses a kind of food processer, including stirring cup, the bottom of stirring cup is equipped with heating disc, stirring cup bottom is heated by heating disc, and then heat is transferred to food.But the way of heating stirring cup bottom will cause heat concentration in stirring cup bottom, and there is the risk of sticking bottom when food is heated quickly. SUMMARY

[0004] In view of the problems in the prior art, the utility model provides a cutter heating structure of food processer and food processer thereof, by the way of heating rotary cutter through electromagnetic induction, rotary cutter is heated while crushing food, and then food is in motion state when heated, which speeds up the heat transfer efficiency and avoids sticking bottom caused by excessive heat concentration.

[0005] The utility model is realized as follows: a cutter heating structure of food processer, including the stirring cup being equipped in shell, hollow stirring cavity is equipped in the stirring cup, driving assembly is equipped below the stirring cup, the output of driving assembly is equipped with rotary cutter, rotary cutter passes through the bottom of stirring cup from bottom to top, and extends into the stirring cup, the first heating unit corresponding with rotary cutter is equipped on the circumferential side of stirring cup, the first heating unit includes magnetic induction coil, magnetic induction coil surrounds the bottom of stirring cup, and is electromagnetically coupled with rotary cutter, so as to heat rotary cutter in non-contact mode;Driving assembly drives rotary cutter to rotate in contact or non-contact mode.The heating mode of electromagnetic induction excites eddy current in rotary cutter through alternating magnetic field, so that rotary cutter itself is directly heated, which saves the process of heat transfer through medium in heat transfer process, compared with traditional resistance heating, heating speed is faster, energy utilization is higher, and heating efficiency is effectively improved.

[0006] Preferably, the driving assembly comprises a magnetic motor, the magnetic motor comprises a motor body, a stator mounted on the motor body, and a rotor arranged separately from the motor body, the rotor is mounted on the rotary knife and is magnetically connected with the stator, so that the magnetic motor drives the rotary knife to rotate in a non-contact manner. Since the first heating unit heats the rotary knife, the rotary knife has a high heat, and the magnetic motor drives the rotary knife to crush food in a magnetic driving manner, avoiding direct contact between the rotary knife and the driving assembly, thereby preventing the rotary knife from transferring heat to the driving assembly, avoiding overheating damage to the driving assembly, and improving the service life of the driving assembly.

[0007] Specifically, the shell further comprises a mounting portion corresponding to the stirring cup, the mounting portion is arranged below the stirring cup and abuts against the stirring cup, and the rotary knife is mounted on the mounting portion and rotationally connected with the mounting portion.

[0008] Specifically, a heating cavity is arranged between the bottom of the stirring cup and the mounting portion, a second heating unit is arranged in the heating cavity, and the second heating unit is in heat transfer connection with the stirring cup. The second heating unit is used for heat preservation of the stirring cup. After the food in the stirring cup is cooked, the rotary knife stops rotating, and the food is relatively stationary with the rotary knife. At this time, the contact area between the food and the rotary knife is small, and it is difficult to quickly transfer heat to the food by heating the rotary knife. By heating the stirring cup through the second heating unit, the contact area between the food and the heat source can be increased, the heat transfer efficiency can be improved, and the heating power required for heat preservation is not high, which will not cause the bottom to be burnt.

[0009] Specifically, the mounting portion further comprises a sealing unit matched with the rotary knife, and the sealing unit is sleeved with the sealing unit. The sealing unit is used to improve the sealing property between the rotary knife and the shell, prevent leakage when the rotary knife rotates, and improve the safety of the rotary knife.

[0010] Preferably, the stirring cup is made of heat-resistant non-metallic material. Since metal materials have shielding effect on magnetic field, when the stirring cup is made of metal material, the magnetic induction coil cannot excite eddy current in the rotary knife through alternating magnetic field, resulting in poor heating effect of the rotary knife, or even unable to heat. When the stirring cup is made of heat-resistant non-metallic material, the stirring cup can prevent the magnetic field from being shielded, and the reliability of the first heating unit is improved.

[0011] Preferably, the first heating unit further comprises a heat insulation shell, the heat insulation shell covers the magnetic induction coil, and a plurality of heat dissipation holes are arranged on the outer circumferential side of the heat insulation shell, the magnetic induction coil is directly or indirectly communicated with the outside through the heat dissipation holes. Since the magnetic induction coil needs to be energized to form a magnetic field when heating the rotating cutter, at this time, the magnetic induction coil will generate Joule heat, the heat insulation shell is used for preventing the magnetic induction coil from transmitting heat to the stirring cup, and further preventing the bottom from being burnt; the heat dissipation holes are used for discharging the heat generated by the magnetic induction coil to the outside, preventing the magnetic induction coil from overheating, and further improving the service life of the magnetic induction coil.

[0012] Preferably, the rotating cutter comprises a cutter rod in transmission connection with the driving assembly, and a cutter blade assembly in threaded connection with the cutter rod, so that the cutter rod and the cutter blade assembly form a detachable structure. The cutter blade assembly is used for cutting food in the process of chopping. After a long time of use, the cutting edge will be worn. When the cutter blade assembly is in threaded connection with the cutter rod, the cutter blade assembly can be quickly replaced after being worn, and the maintenance convenience of the rotating cutter is improved.

[0013] Preferably, the bottom of the stirring cup is further provided with a temperature sensor, and the sensing end of the temperature sensor extends into the stirring cavity from bottom to top. The temperature sensor is used for detecting the temperature of food, so that the first heating unit adjusts the temperature of the rotating cutter according to the temperature of food, and then the temperature of the rotating cutter is adapted to the food, and the self-adaptability of the first heating unit and the rotating cutter is improved.

[0014] Preferably, the magnetic induction coil is an IH coil. Compared with an ordinary electric heating coil, the IH coil has higher energy conversion rate and faster heating speed, and further improves the heating efficiency of the first heating unit.

[0015] A food processor comprises the cutter heating structure, and food is heated through the cutter heating structure, so that the bottom is prevented from being burnt while the heating efficiency is ensured.

[0016] The food processor has the advantages that:

[0017] The food processor comprises a cutter heating structure and a food processor, and the rotating cutter is heated through electromagnetic induction. The rotating cutter is directly heated by exciting eddy current in the rotating cutter, the process of transmitting heat through medium in the heat transmission process is saved, the heating speed is faster, the energy utilization rate is higher, and the heating efficiency is effectively improved compared with traditional resistance heating. The rotating cutter also chops food during heating, so that the food is in a moving state during heating, and excessive concentration of heat is avoided to prevent the bottom from being burnt. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A cross-sectional view of the cutter heating structure of the utility model;

[0019] Figure 2 A Figure 1 enlarged schematic view at a of the utility model;

[0020] Figure 3 A first heating unit schematic view of the cutter heating structure of the utility model;

[0021] Figure 4 A cross-sectional view of the food processor of the utility model.

[0022] Reference signs:

[0023] 1, stirring cup; 2, first heating unit; 3, drive assembly; 4, rotating cutter; 5, mounting portion; 6, heating cavity; 7, second heating unit; 21, magnetic induction coil; 22, heat insulation shell; 41, cutter bar; 42, cutter edge assembly; 51, sealing unit; 221, heat dissipation hole. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] As Figures 1-3 shown, a cutter heating structure of a food processor, comprising a stirring cup 1 arranged in a shell, a hollow stirring cavity is arranged in the stirring cup 1, a drive assembly 3 is arranged below the stirring cup 1, an output end of the drive assembly 3 is provided with a rotating cutter 4,

[0027] In the embodiment, the drive assembly 3 comprises a magnetic motor, the magnetic motor comprises a motor body, a stator arranged on the motor body and a rotor arranged separately from the motor body, the rotor is arranged on the rotating cutter 4 and is magnetically connected with the stator, so that the magnetic motor drives the rotating cutter 4 to rotate in a non-contact manner. Since the first heating unit 2 heats the rotating cutter 4, the rotating cutter 4 has a high heat, the magnetic motor drives the rotating cutter 4 to crush food in a magnetic driving mode, avoids direct contact between the rotating cutter 4 and the drive assembly 3, and further prevents the rotating cutter 4 from transmitting heat to the drive assembly 3, avoids overheating damage of the drive assembly 3, and improves the service life of the drive assembly 3.

[0028] Specifically, the shell further comprises a mounting portion 5 corresponding to the stirring cup 1, the mounting portion 5 is arranged below the stirring cup 1 and abuts against the stirring cup 1, and the rotary cutter 4 is mounted on the mounting portion 5 and rotationally connected with the mounting portion 5.

[0029] Specifically, a heating cavity 6 is arranged between the bottom of the stirring cup 1 and the mounting portion 5, and a second heating unit 7 is arranged in the heating cavity 6 and thermally connected with the stirring cup 1. The second heating unit 7 is used for keeping the stirring cup 1 warm. After the food in the stirring cup 1 is cooked, the rotary cutter 4 stops rotating, and the food is relatively stationary with the rotary cutter 4. At this time, the contact area between the food and the rotary cutter 4 is small, and it is difficult to quickly transfer heat to the food by heating the rotary cutter 4. By the heating mode of the second heating unit 7, the contact area between the food and the heat source can be increased, the heat transfer efficiency can be improved, and the heating power required during heat preservation is not high, which will not cause the bottom to be burnt.

[0030] In the embodiment, the second heating unit 7 is a heating tube. In other embodiments, the second heating unit can also be a heating wire, a heating film or other heating devices.

[0031] Specifically, the mounting portion 5 is further provided with a sealing unit 51 matched with the rotary cutter 4, and the sealing unit 51 is sleeved with the sealing unit 51. The sealing unit 51 is used to improve the sealing between the rotary cutter 4 and the shell, prevent leakage when the rotary cutter 4 rotates, and improve the safety of the rotary cutter 4.

[0032] The rotary cutter 4 passes through the bottom of the stirring cup 1 from bottom to top and extends into the stirring cup 1,

[0033] In the embodiment, the rotary cutter 4 comprises a cutter rod 41 in transmission connection with the driving assembly 3, and a cutter blade assembly 42 in threaded connection with the cutter rod 41, so that the cutter rod 41 and the cutter blade assembly 42 form a detachable structure. The cutter blade assembly 42 is used for cutting food during chopping. After a long time of use, the cutting edge will be worn. When the cutter blade assembly 42 is in threaded connection with the cutter rod 41, the cutter blade assembly 42 can be quickly replaced after being worn, thereby improving the maintenance convenience of the rotary cutter 4.

[0034] A first heating unit 2 corresponding to the rotary cutter 4 is arranged on the outer circumferential side of the stirring cup 1, the first heating unit 2 comprises a magnetic induction coil 21,

[0035] In the embodiment, the magnetic induction coil 21 is an IH coil. Compared with a common electric heating coil, the IH coil has higher energy conversion rate and faster heating speed, further improving the heating efficiency of the first heating unit 2.

[0036] In the embodiment, the first heating unit 2 further comprises a heat insulation shell 22, the heat insulation shell 22 covers the magnetic induction coil 21, and a plurality of heat dissipation holes 221 are arranged on the outer circumferential side of the heat insulation shell 22, the magnetic induction coil 21 is directly or indirectly communicated with the outside through the heat dissipation holes 221. Since the magnetic induction coil 21 needs to be energized to form a magnetic field when heating the rotary cutter 4, at this time, the magnetic induction coil 21 will generate Joule heat, the heat insulation shell 22 is used to prevent the magnetic induction coil 21 from transferring heat to the stirring cup 1, further preventing the paste from being burnt; the heat dissipation holes 221 are used to discharge the heat generated by the magnetic induction coil 21 to the outside, preventing the magnetic induction coil 21 from overheating, and further improving the service life of the magnetic induction coil 21.

[0037] The magnetic induction coil 21 surrounds the bottom of the stirring cup 1 and is electromagnetically coupled with the rotary cutter 4 to heat the rotary cutter 4 in a non-contact manner; the driving assembly 3 drives the rotary cutter 4 to rotate in a non-contact manner. The electromagnetic induction heating mode excites eddy current inside the rotary cutter 4 through an alternating magnetic field, so that the rotary cutter 4 directly heats itself, saving the process of transferring heat through the medium in the heat transfer process. Compared with the traditional resistance heating, the heating speed is faster, the energy utilization rate is higher, and the heating efficiency is effectively improved.

[0038] In the embodiment, the stirring cup 1 is made of heat-resistant non-metallic material. Since metal materials have shielding effect on magnetic field, when the stirring cup 1 is made of metal material, the magnetic induction coil 21 is difficult to excite eddy current inside the rotary cutter 4 through an alternating magnetic field, resulting in poor heating effect of the rotary cutter 4, or even unable to heat. When the stirring cup 1 is made of heat-resistant non-metallic material, the stirring cup 1 can prevent the magnetic field from being shielded, improving the reliability of the first heating unit 2.

[0039] In the embodiment, the stirring cup 1 further comprises a temperature sensor, and an inductive end of the temperature sensor extends into the stirring cavity from bottom to top. The temperature sensor is used to detect the temperature of food, so that the first heating unit 2 adjusts the temperature of the rotary cutter 4 according to the temperature of food, so that the temperature of the rotary cutter 4 is adapted to the food, improving the adaptability of the first heating unit 2 and the rotary cutter 4.

[0040] Embodiment 2

[0041] As Figure 4As shown, a food processor comprises the cutter heating structure as described in embodiment 1, and food is heated by the cutter heating structure, so that the bottom of the food can be prevented from being burnt while the heating efficiency is ensured.

[0042] According to the disclosure and teaching of the above description, the skilled in the art of the present application can also change and modify the above embodiments. Therefore, the present application is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the present application should fall within the protection scope of the claims of the present application. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the present application.

Claims

1. A knife heating structure of a food processor, comprising a stirring cup arranged in a housing, a hollow stirring cavity being arranged in the stirring cup, a driving assembly being arranged below the stirring cup, an output end of the driving assembly being provided with a rotary knife, the rotary knife penetrating through a bottom of the stirring cup from bottom to top and extending into the stirring cup, characterized in that, The stirring cup is provided with a first heating unit corresponding to the rotary cutter on the outer periphery, the first heating unit comprises a magnetic induction coil, the magnetic induction coil surrounds the bottom of the stirring cup and is electromagnetically coupled with the rotary cutter to heat the rotary cutter in a non-contact manner; the driving assembly drives the rotary cutter to rotate in a contact or non-contact manner.

2. The knife heating structure of the food processor according to claim 1, wherein, The driving assembly comprises a magnetic motor, the magnetic motor comprises a motor body, a stator mounted on the motor body and a rotor separately arranged from the motor body, the rotor is mounted on the rotary cutter and is magnetically connected with the stator, so that the magnetic motor drives the rotary cutter to rotate in a non-contact manner.

3. The knife heating structure of the food processor according to claim 2, wherein, The shell further comprises a mounting portion corresponding to the stirring cup, the mounting portion is arranged below the stirring cup and abuts against the stirring cup, the rotary cutter is mounted on the mounting portion and is rotationally connected with the mounting portion.

4. The knife heating structure of a food processor according to claim 3, wherein, A heating cavity is arranged between the bottom of the stirring cup and the mounting portion, a second heating unit is arranged in the heating cavity, and the second heating unit is in heat transfer connection with the stirring cup.

5. The knife heating structure of the food processor according to claim 3, wherein, A sealing unit adapted to the rotary cutter is further arranged on the mounting portion, and the sealing unit is sleeved with the sealing unit.

6. The knife heating structure of a food processor according to claim 1, wherein, The stirring cup is made of heat-resistant non-metallic material.

7. The knife heating structure of a food processor according to claim 1, wherein, The first heating unit further comprises a heat insulation shell, the heat insulation shell covers the magnetic induction coil, and the outer periphery of the heat insulation shell is provided with a plurality of heat dissipation holes, the magnetic induction coil is directly or indirectly communicated with the outside through the heat dissipation holes.

8. The knife heating structure of a food processor according to claim 1, wherein, The rotary cutter comprises a cutter rod in transmission connection with the driving assembly, the cutter rod is provided with a threadedly connected cutter blade assembly, so that the cutter rod and the cutter blade assembly form a detachable structure.

9. The knife heating structure of a food processor according to claim 1, wherein, The bottom of the stirring cup is further provided with a temperature sensor, and the sensing end of the temperature sensor extends into the stirring cavity from bottom to top.

10. A food processor, characterized in that, The cutter heating structure comprises the stirring cup and the rotary cutter. The cutter heating structure comprises the stirring cup and the rotary cutter.

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