CN113243780A

CN113243780A - Food preparation machine with good heating effect

Info

Publication number: CN113243780A
Application number: CN202010097394.2A
Authority: CN
Inventors: 王旭宁; 王丽军; 薛领珑
Original assignee: Joyoung Co Ltd
Current assignee: Joyoung Co Ltd
Priority date: 2020-02-17
Filing date: 2020-02-17
Publication date: 2021-08-13

Abstract

The invention provides a food processor with good heating effect, which comprises a crushing and heating component and a cup body, wherein the crushing and heating component is arranged on the cup body, the crushing and heating component comprises a shell, a heating device, a motor and a control panel, the motor and the control panel are arranged in the shell, the shell comprises an upper shell and a lower shell, the motor is arranged in a space enclosed by the upper shell and the lower shell, a motor shaft penetrates through the lower shell and extends downwards into the cup body, a crushing knife is arranged at the tail end of the motor shaft, the heating device is arranged around the motor shaft and comprises an insulating film base body and a heating body arranged on the inner surface of the insulating film base body, the heating body is positioned below the liquid level of serous fluid in the cup body, and when the food processor is used for heating, the heat generated by the heating body is quickly transferred out through the insulating film base body and is uniformly transmitted, the food processor has the advantages of good cooking effect, light weight, small volume and portability.

Description

Food preparation machine with good heating effect

The invention relates to the field of food processors for kitchens, in particular to a food processor with a good heating effect.

Background

Nowadays, food processing machines are widely used by people, and the food processing machines (including soybean milk machines, wall breaking machines, hot drink machines and the like) are fashionable in life when being used for drinking hot drinks such as soybean milk, rice paste, tea soup and the like.

Present overhead kitchen food preparation machine of motor is like soybean milk machine, rice paste machine etc. include aircraft nose and cup usually, the aircraft nose is placed on the cup, surround between aircraft nose and the cup and form crushing chamber, the aircraft nose includes aircraft nose upper cover and aircraft nose lower cover, be equipped with circuit board and motor in the space that aircraft nose upper cover and aircraft nose lower cover enclose, the terminal setting of motor shaft is equipped with crushing sword, the through-hole that the motor shaft passed aircraft nose lower cover center stretches into in the cup, the motor drives the crushing sword rotation in order to realize smashing the crushing of intracavity food.

The motor overhead type food processor with the heating function on the market basically has two heating modes, one is that the bottom or the side of the cup body is welded with a heating plate, the heating mode is that heat sent by the heating plate is indirectly transferred to water in the cup body through the cup bottom connected with the heating plate, and as the other side of the heating plate which is only in one side for heat transfer is exposed in the space, more heat can be lost by the heating plate exposed in the air in the heating process. The cup body is provided with electronic structures such as a heating plate, a socket and the like, so that the assembly is troublesome and the cleaning is inconvenient. The existing machine is heavy in weight, the heating pipe is high in power, and the heating plate is large in size, so that in the actual pulping process, the thermal inertia is large, the boiling and the overflow prevention are difficult to control, and small-space and small-capacity pulping is difficult to achieve generally.

The other type is the earliest food processor with a heating function and a motor arranged on the top, especially a soymilk machine, a heating pipe is arranged on a general machine head, the heating pipe extends into a cup body to heat water or serous fluid in the cup body, although the water or serous fluid is boiled thoroughly, because the shell of the heating pipe is generally stainless steel, the material or serous fluid is easy to gather on the heating pipe to cause scorching due to high surface heat load of the heating pipe, and especially under the condition that a customer does not pay attention to dry burning, the heating pipe is difficult to clean.

Disclosure of Invention

The invention aims to provide a crushing and heating assembly for a food processor with high heating efficiency and the food processor.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a food preparation machine that heating effect is good, includes crushing heating element and cup, crushing heating element sets up on the cup, crushing heating element includes casing, heating device and sets up motor and the control panel in the casing, and the casing includes epitheca and inferior valve, and the motor is installed in the space that epitheca and inferior valve surround, and the motor shaft passes the inferior valve and extends downwards and stretch into in the cup, and the end of motor shaft is equipped with crushing sword, its characterized in that, heating device encircles the motor shaft setting, and heating device includes the insulating film base member and locates the heat-generating body of insulating film base member internal surface, the heat-generating body is located below the liquid level of the thick liquid in the cup. Further, the lower shell comprises a cover body and a cylinder body connected with the cover body, and the insulating film base body is a ceramic film and is fixed on the outer side wall of the cylinder body through winding or pasting.

Furthermore, a transition step surface is arranged between the upper shell and the lower shell, the upper shell is a plastic upper shell, and the cylinder body is a food-grade metal cylinder body or a ceramic cylinder body.

Or the heating device is sleeved on the periphery of the motor shaft and is arranged on the lower shell, and the motor shaft rotates relative to the heating device.

Further, the heating device is mounted on the lower shell through a heat insulation structure; or the lower shell is a food-grade heat-resistant lower shell, and the heating device is directly arranged on the lower shell.

Furthermore, the heating element is a resistance layer printed on the inner surface of the insulating film substrate.

Furthermore, the resistance layer is distributed on the insulating film substrate in a snake shape.

Further, a sealing structure is arranged between the bottom of the heating device and the motor shaft.

Or the heating device is sleeved or embedded on the motor shaft through a heat insulation structure and rotates integrally with the motor shaft.

After the technical scheme is adopted, the invention has the following advantages:

1. according to the invention, the heating device is arranged around the motor shaft, the heating device specifically comprises an insulating film substrate and a heating body arranged on the inner surface of the insulating film substrate, and the heating body is positioned below the liquid level of the serous fluid in the cup body, so that when heating is carried out, as the insulating film substrate is thin, the heat generated by the heating body is quickly transferred out through the insulating film substrate and is uniformly transmitted, and meanwhile, the stirring of the crushing knife driven by the motor shaft is accompanied, the heat near the heating device is more quickly diffused and transferred outwards, therefore, when the heating device heats the serous fluid or water, the efficiency is high, the direct heating mode is used for cooking thoroughly, and the cooking effect is good; simultaneously, because the insulating film base member that has the heat-generating body is thinner, the insulating film base member can more conveniently encircle the motor shaft setting, the heat-generating body passes through the film base member and encircles the motor shaft setting, the bonding that the insulating film base member can be convenient, welding or sintering are in the motor shaft periphery, can guarantee the insulating properties of heat-generating body, the waterproof performance of heat-generating body has also been guaranteed simultaneously, and self light in weight has alleviateed the weight of smashing heating element greatly, simultaneously because the insulating film base member is thinner, make the heat on the heat-generating body can be faster transmit to the food or the liquid in the cup, the heating efficiency of food preparation machine has been promoted greatly, the boil out time has been shortened, the boil out effect has also been improved simultaneously. Meanwhile, the existence of the insulating film substrate, the heating body is arranged on the inner surface of the insulating film substrate, so that the heating body is not in direct contact with liquid, and the insulating film substrate is thinner and is easier to install and seal, thereby better ensuring the insulating property and the waterproof property of the heating body, and further ensuring the safety performance of the food processor during working. So set up, food preparation machine's heating efficiency and machining efficiency have been promoted greatly, and simultaneously, the incense that thoroughly boils is decocted to the mode of this kind of direct heating, it is effectual to boil out, the machining effect of food preparation machine has also been promoted, and stretch into the cup with food preparation machine crushing heating element and heating device is located below the liquid level, this both makes things convenient for crushing heating element to smash edible material and thick liquid, the stirring, in order to guarantee to smash, stirring effect, avoid dry combustion method again can be fine, security when guaranteeing food preparation machine to use. Because the insulating film substrate is thinner, the heating body is arranged on the inner surface, so that the heating device is light in weight, the heating device is also thinner, and the heating device is easier to install and form, thereby reducing the weight and the volume of the food processor, and being lighter, thinner and more portable in design of the food processor.

2. The inferior valve includes lid and the barrel of being connected with the lid, and the insulating film base member is ceramic film and covers the lateral wall that is fixed in the barrel through coiling or pasting, because the more rule of barrel structure shape makes things convenient for the installation of insulating film base member like this fixed, also makes things convenient for the installation of heat-generating body simultaneously fixed, the insulating nature of assurance heat-generating body that can be fine, the waterproof sealing performance of assurance heat-generating body that can be fine again.

3. Be equipped with transition step face between epitheca and inferior valve, it places crushing heating element on the cup to make things convenient for like this, and establish the epitheca into the plastics epitheca, can not only play fine thermal-insulated anti-scalding effect, and easily the machine-shaping of epitheca, plastics are with low costs simultaneously, the holistic production manufacturing cost of food preparation machine has been reduced, and establish the barrel into food level metal barrel or ceramic barrel, both guaranteed in the heating process, the barrel can not warp or melt because of overheated, in addition, pottery or metal barrel, also can not be dyed by the food of easy dyeing, still make the inferior valve easily wash, safety and sanitation.

4. Will the heat-generating body sets up to the resistance layer, and the resistance layer printing is at insulating film base member internal surface for simple process, the overall arrangement is even, homogeneity when in order to guarantee the heating, thereby can take place in the problem that overheated local clay pot burnt pot when having avoided thick liquid to boil out, simultaneously, it is also very thin to be used for the resistance layer, has alleviateed heating device's weight and volume, makes heating device lighter, and because the insulating properties and the waterproof performance of heat-generating body have also been guaranteed to the insulating film base member existence.

5. Set up the resistance layer and be snakelike distribution on the insulating film base member for the insulating film base member is by resistance layer coverage area maximum, has promoted the efficiency of generating heat greatly, and heat transfer is also more even, has promoted the heating efficiency who smashes heating element promptly, and food preparation machine's machining efficiency.

6. The heating device is sleeved on the periphery of the motor shaft and is arranged on the lower shell, and the motor shaft rotates relative to the heating device, so that the motor shaft has the advantages of simplicity and convenience in installation, easiness in cleaning, compact structure and small occupied space.

7. Furthermore, the heating device is arranged on the lower shell through the heat insulation structure, so that the lower shell is prevented from being overheated and deformed or melted due to the heating device, the normal service life and the durability of the lower shell are ensured, and meanwhile, the rapid heat transfer is ensured, so that the heating efficiency is improved; or, establish the inferior valve into the heat-resisting inferior valve of food level, with heating device direct mount on the inferior valve, can not make the inferior valve be heated and warp or melt like this, fine assurance the durability of inferior valve, promoted the life of inferior valve.

8. Furthermore, a sealing structure is arranged between the bottom of the heating device and the motor shaft, slurry is prevented from entering a gap between the bottom of the heating device and the motor shaft, the working environment of the motor is guaranteed, the working performance of the motor is good, the performance of the motor during pulping is guaranteed, meanwhile, the crushing heating assembly is prevented from entering due to slurry residues, the problem of being stained with and covered is avoided, the cleaning is changed, and the safety and the sanitation of the crushing heating assembly are guaranteed.

9. Through with heating device through thermal-insulated structure suit or inlay and establish on the motor shaft to with the integrative rotation of motor shaft, not only guaranteed the sealed between motor shaft and the heating device, need not consider the sealed problem between heating device and the motor shaft again, simultaneously in the heating process, if be equipped with the motor rotation, then not only the heating device heat dissipation is fast, also can not make the material deposit on heating device yet, the possibility of gluing that has significantly reduced is changeed and is washd.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

fig. 1 is a cross-sectional view of a first embodiment of a pulverizing and heating assembly for a food processor according to the present invention.

Fig. 2 is an enlarged view of a in fig. 1.

Fig. 3 is a schematic diagram of the arrangement of the resistive layer in the embodiment of the pulverizing heating element for food processor according to the present invention.

Fig. 4 is a schematic structural diagram of the food processor of the present invention.

Fig. 5 is a sectional view of a second embodiment of a pulverizing and heating unit for a food processor according to the present invention.

Fig. 6 is an enlarged view of B in fig. 5.

Fig. 7 is a sectional view of a pulverizing and heating unit in accordance with a third embodiment of the present invention.

Fig. 8 is an enlarged view of C in fig. 7.

Fig. 9 is a sectional view of a fourth embodiment of a pulverizing and heating unit for a food processor according to the present invention.

The names of the components marked in the figures are as follows:

10. a pulverizing heating assembly; 1. a housing; 11. an upper shell; 12. a lower case; 121. a cover body; 1211. an extension section; 1212. an opening; 122. a barrel; 13. a transition step surface; 2. a heating device; 21. an insulating film substrate; 22. a heating element; 221. a resistive layer; 3. a motor; 31. a motor shaft; 4. a sealing structure; 41. a seal ring; 42. fixing a bracket; 5. a cup body; 6. a crushing knife; 7. a thermally insulating structure; 8. installing a cylinder body; 9. a transition support.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific examples. It is to be understood that the following terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like are used merely to indicate an orientation or positional relationship relative to one another as illustrated in the drawings, merely to facilitate describing and simplifying the invention, and are not intended to indicate or imply that the device/component so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore are not to be considered limiting of the invention.

The first embodiment is as follows:

as shown in fig. 1 to 4, the present invention provides a food processor, the food processor comprises a grinding heating assembly 10 and a cup body 5, the grinding heating assembly 10 comprises a housing 1, a heating device 2, a motor 3 and a control board (not shown in the figure) arranged in the housing 1, the housing 1 comprises an upper shell 11 and a lower shell 12, the motor 3 is arranged in a space enclosed by the upper shell 11 and the lower shell 12, the motor 3 comprises a motor shaft 31, the motor shaft 31 passes through the lower shell 12 and extends downwards into the cup body 5, the end of the motor shaft 31 is provided with a grinding knife 6, specifically, the heating device 2 is arranged around the motor shaft 31, the heating device 2 comprises an insulating film substrate 21 and a heating body 22 arranged on the inner surface of the insulating film substrate 21, the heating body 22 is positioned below the liquid level of the serous in the cup body 5, so that the heat generated by the heating body is rapidly transferred out through the insulating film substrate during heating, the transmission is uniform, the stirring of the crushing cutter is driven by the motor shaft, and the heat near the heating device is diffused and transferred outwards more quickly, so that the heating device has high efficiency when heating the slurry or water, the direct heating mode can boil the incense thoroughly, and the boiling effect is good; because of the existence of the insulating film matrix and the arrangement of the heating element on the inner surface, the insulating property and the waterproof property of the heating element are ensured, meanwhile, the thickness of the insulating film substrate 21 is 0.2 mm-0.8 mm, the thickness is 0.5mm, the film substrate with the thickness can be more conveniently arranged around the motor shaft, the heating element is arranged around the motor shaft through the film substrate with the thickness, the film substrate can be conveniently adhered, welded or sintered at the periphery of the motor shaft, the insulating property of the heating element can be ensured, and the waterproof property of the heating element can also be ensured, but also has light weight, greatly reduces the weight of the crushing and heating component, and simultaneously, the thin film substrate with the thickness, make the heat on the heat-generating body can be faster transmit to the food or liquid in the cup, promoted food preparation machine's heating efficiency greatly, shortened the time of decocting, also improved the effect of decocting simultaneously. The food processor is light in weight, small in size and more portable. So set up, food preparation machine's heating efficiency and machining efficiency have been promoted greatly, and simultaneously, the incense that thoroughly boils is decocted to the mode of this kind of direct heating, it is effectual to boil out, the machining effect that has also promoted food preparation machine, and stretch into cup 5 with food preparation machine crushing heating element and heating device 2 is located below the liquid level, this both makes things convenient for crushing heating element to smash edible material and thick liquid, the stirring, in order to guarantee to smash, the stirring effect, avoid dry combustion method again can be fine, in order to guarantee the security when food preparation machine uses.

Specifically, the heating element 22 is the resistance layer 221, and the resistance layer 221 is printed on the inner surface of the insulation film substrate 21, so that the process is simple, the layout is uniform, the uniformity during heating is ensured, and the problem that the slurry is stuck to a pot and burnt in an overheated place during boiling is avoided; meanwhile, the resistance layer 221 is arranged to be distributed on the insulation film base body 21 in a snake shape, so that the coverage area of the insulation film base body 21 covered by the resistance layer 221 is the largest, the heating efficiency is greatly improved, and the heating efficiency of the smashing heating assembly and the processing efficiency of the food processing machine are also improved. Meanwhile, the resistance layer can be arranged to be thinner, so that the heating device of the food processor can be arranged to be thinner and thinner, the weight and the volume of the food processor are further reduced, and the food processor is more portable.

In this embodiment, the lower case 12 includes a cover 121 and a cylinder 122 connected to the cover 121, the cover 121 is a ceramic cover, and the insulating film base 21 is a ceramic film and is fixed to the outer side wall of the cylinder 122 by winding, so that the insulating film base is convenient to mount and fix, and the heating element is also convenient to mount and fix, which not only can ensure the insulation property of the heating element, but also can ensure the waterproof property of the heating element; wherein, when the heat-generating body sets up on barrel 122, the resistive layer 221 of insulating film base member 21 with the laminating of barrel surface, the heating device 2 is installed and is protruding in the lateral wall of barrel 122 after targetting in place, also can be for the ease of washing and aesthetic property, can set up the mounting groove on the lateral wall of barrel 122, the insulating film base member 21 that is equipped with the resistive layer can be installed in the mounting groove to make insulating film base member 21 after the installation target in place with the lateral wall parallel and level of barrel 122, make the lateral wall of barrel 122 smooth, easily wash and pleasing to the eye. In the embodiment, the cylinder is a right circular cylinder, the bottom of the cover body comprises a horn-shaped flaring, the upper end of the cylinder is smoothly connected with the horn-shaped flaring, the insulating film substrate is a ceramic film and is fixed on the outer side wall of the cylinder by pasting, so that the insulating film substrate with the heating element arranged on the inner side is more easily arranged on the right circular cylinder, the insulation and waterproof performance of the heating element is ensured, the right circular cylinder extends into the liquid level, the heating element is positioned below the liquid level, the connection between the cylinder and the cover body is ensured, the connection and the sealing and waterproof performance of the cylinder and the cover body are ensured, although the heating element is positioned below the liquid level, the heat of the heating element is not only rapidly diffused into the slurry through the insulating film substrate, and the heating efficiency is high, the boiling effect is good.

In this embodiment, in order to facilitate the installation and fixation between the insulating film substrate 21 and the cylinder 122, the cylinder 122 is also made of ceramic, and the cover 121 and the cylinder 122 are integrally formed, so that the insulating film substrate 21 can be directly fixed on the outer side wall of the cylinder 122 by sintering, and the heating element 22 can be better coated, so as to ensure the insulation and waterproof performance of the heating element 22, and meanwhile, the installation, fixation and processing formation between the cylinder 122 and the insulating film substrate 21 are greatly facilitated; in addition, the barrel body is not deformed or melted due to overheating in the heating process, the lower shell is easy to clean, and safety and sanitation are achieved.

In order to facilitate the installation and the limitation between the shell and the cup body, a transition step surface 13 can be arranged between the upper shell 11 and the lower shell 12, the upper shell 11 is made into a plastic upper shell, so that the heat insulation and scald prevention effects can be well achieved, the upper shell is easy to machine and form, meanwhile, the plastic cost is low, and the overall production and manufacturing cost of the food processor is reduced.

And, the bottom of barrel 122 is equipped with the through-hole that supplies motor shaft 31 to pass, be equipped with seal structure 4 between through-hole and the motor shaft 31, seal structure 4 specifically includes sealing washer 41 and sealing washer fixed bolster 42, in this embodiment, fixed bolster 42 is a fixed pressing plate, the through-hole periphery of barrel 122 bottom is equipped with the sealing washer mounting groove, the sealing washer sets up in the mounting groove to compress tightly the sealing washer through the pressing plate, the rethread screw passes the pressing plate in order to lock the sealing washer with the barrel bottom, so also can be fine realize the sealing between motor shaft and barrel and the heating device.

In this embodiment, still be equipped with the transition support 9 unanimous with lid 121 shape on the lid 121, the motor is installed on transition support 9, lid 121 establishes the crushing heating element in holding chamber through transition support 9 and upper cover locking formation, motor 3 and control panel setting are on transition support 9, of course, can understand, can also set up seal structure between transition support 9 and upper cover and the lid to waterproof effect in the aircraft nose of guaranteeing crushing heating element, thereby guarantee electrical insulation and safety. In this embodiment, transition support 9 is the plastic support, and the plastic support is the shaping more easily, and the installation and the insulating properties of the electrical part of being convenient for also have certain shock attenuation effect simultaneously.

It is understood that the thickness of the insulating film substrate may also be 0.2mm, 0.25mm, 0.3mm, 0.4mm, 0.45mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, etc., and the specific thickness is determined according to the actual structure and situation.

It can be understood that the cylinder body can be set into a food-grade metal cylinder body, when the cylinder body is the metal cylinder body, an insulating substance is arranged between the metal cylinder body and the resistance layer, the ceramic film provided with the resistance layer is insulated and isolated from the metal cylinder body through the insulating substance, the insulating substance can be silica gel or can be a ceramic film, so that the insulation between the two is ensured, and the two is also ensured to be effectively attached.

It can be understood that the cover 121 can also be a plastic cover, which is integrally formed with the cylinder 122 by secondary injection molding, and of course, the cover can also be a food-grade plastic metal cover, which is integrally formed with the ceramic cylinder by welding or sintering, so as to ensure that the part contacting with the slurry or the food material is healthy and sanitary.

It can be understood that the cover body may also be a cover body with an opening at the bottom, and the upper end of the cylinder body is in a horn shape, and the lower end is in a straight cylinder shape, and the flared end of the horn-shaped opening is in the same size as the opening of the cover body and is smoothly connected into a whole. Heating device sets up on the lateral wall of right circular cylinder body department, and in the right circular cylinder body stretched into the page for the heat-generating body is located below the liquid level, and this kind of structure makes the barrel change machine-shaping, and the installation and the being connected of the barrel of also being convenient for and lid have not only guaranteed the seal box waterproof performance of lid, make the lid change the washing moreover, and in addition, the heat-generating body is located below the liquid level, has avoided the emergence of dry combustion method. The slurry boiling effect is good, the heating efficiency is high, the cleaning performance of the barrel is guaranteed, and the insulation and waterproof performance of the heating body are guaranteed.

Example two:

the present embodiment is different from the first embodiment in that the heating means is mounted on the lower case through a heat insulating structure.

In this embodiment, as shown in fig. 5 to 6, the heating device 2 is installed on the lower casing 12 through the heat insulation structure 7, the heat insulation structure 7 is a food-grade metal tube or ceramic tube having a structure or shape consistent with that of the lower casing 12, the lower casing 12 specifically includes the cover 121 and the cylinder 122, the heat insulation structure 7 is disposed between the heating device 2 and the cylinder 122, that is, the heating device 2 is disposed on the outer side wall of the heat insulation structure 7, so that the cylinder 122 can be well prevented from being deformed or melted due to heat transfer of the heating device, and the durability and the service life of the cylinder and the lower casing can be ensured.

It can be understood that the heating device can be sleeved or embedded on the motor shaft through the heat insulation structure and rotates with the motor shaft as a whole, the heat insulation structure is arranged into a ceramic layer arranged outside the motor shaft, the ceramic layer and the motor shaft are secondarily injected into a whole structure through a plastic part, then a ceramic film provided with a resistance layer is attached to the outer wall of the ceramic layer, the insulation of the resistance layer is ensured, the sealing between the motor shaft and the heating device is ensured, the safety performance of a food processor is ensured, meanwhile, the ceramic film provided with the resistance layer is arranged on the motor shaft, if the stirring function is accompanied in the pulp boiling process, the heat on the heating device can be quickly transmitted to the periphery of the cup body through the stirring of the motor shaft and the crushing knife, the heat transmission is quick, the transmission efficiency is high, and the material can also quickly move to the periphery, so that the material can not excessively stay near the heating device, the material is prevented from being adhered to the heating device, so that the heating device is easy to clean, and meanwhile, the cup body is not provided with the heating device, so that the material is not adhered to the cup body, the cup body is also well cleaned, and the easy cleaning performance of the food processor is further brought.

Other structures and advantages of the parts not described are the same as those of the first embodiment, and are not described in detail here.

Example three:

the present embodiment is different from the first embodiment in that a heat insulating structure is provided between the inside of the lower case and the motor shaft.

In this embodiment, as shown in fig. 7 to 8, the lower casing 12 includes a cover 121 and a cylinder 122, because the heating device 2 is disposed on the outer side wall of the cylinder 122, in order to prevent the motor shaft 31 from being heated and affecting the service life of the motor 3, a heat insulation structure 7 may also be disposed in the cylinder 122, the heat insulation structure 7 may be a heat insulation medium or a heat insulation material, in this embodiment, specifically, a high temperature resistant heat insulation plastic is used, which avoids heat transfer to the motor 3, ensures the working environment of the motor 3, thereby ensures good working performance of the motor, and ensures performance of the motor during pulping. The heat insulation medium can be air, water, heat insulation grease or the like, and of course, other heat insulation structures such as heat insulation cotton or the like can be arranged as long as the heat insulation effect can be achieved.

Example four:

the present embodiment is different from the first embodiment in that the heating device is disposed at a different position.

In this embodiment, as shown in fig. 9, the lower shell 12 includes a cover 121 and a separately processed installation cylinder 8, the installation cylinder 8 is a straight cylinder, the lower end of the cover 121 is provided with an extension 1211, the bottom of the extension 1211 is provided with an opening 1212 for the installation cylinder 8 to pass through, the installation cylinder 8 is sleeved in the opening 1212, the upper end of the installation cylinder 8 passes through the opening and extends into a cavity formed by the upper shell 11 and the lower shell 12, and the heating device 2 is arranged outside the installation cylinder 8, so as to facilitate electrical connection on the heating device 2, which has the advantages of simple and convenient installation, easy cleaning, compact structure and small occupied space; meanwhile, the installation cylinder 8 is set as a ceramic cylinder, so that the lower shell 12 cannot be deformed or melted due to heating, the durability of the lower shell is well guaranteed, and the service life of the lower shell is prolonged.

And, be equipped with on inferior valve 12 rather than the transition support 9 that its shape is unanimous, the bottom of installation barrel 8 is equipped with the through-hole that supplies motor shaft 31 to pass, through-hole department is equipped with sealing washer 41, and be equipped with the fixed bolster 42 that compresses tightly sealing washer 41 in the installation barrel 8, the upper end and the transition support 9 of fixed bolster 42 are connected fixedly, the lower extreme of fixed bolster 42 compresses tightly in the up end of sealing washer 41, and the lower extreme and the barrel bottom of fixed bolster are inconsistent, thereby compress tightly the sealing washer between barrel and fixed bolster, in this embodiment, fixed bolster 42 is heat-resisting plastic support, not only can be fine compress tightly the sealing washer fixedly, still play thermal-insulated effect simultaneously.

Of course, can understand, the fixed bolster also can be metal support or ceramic support, as long as can be with the fine compressing tightly of sealing washer fixed, with guarantee motor shaft and barrel, leakproofness between the heating device can, avoided the thick liquid to get into the clearance between the two like this, the operational environment of motor has been guaranteed, thereby it is good to have guaranteed motor working property, thereby motor performance when having guaranteed the slurrying, and simultaneously, still make crushing heating element can not be because the thick liquid residue gets into, avoided being stained with and covering the problem, change the washing, the safety and sanitation of crushing heating element has been guaranteed.

Other structures and advantages of the parts not described are the same as those of the first embodiment, and are not described in detail here. Other embodiments of the present invention than the preferred embodiments described above will be apparent to those skilled in the art from the present invention, and various changes and modifications can be made therein without departing from the spirit of the present invention as defined in the appended claims.

Claims

1. The utility model provides a food preparation machine that heating effect is good, includes crushing heating element and cup, crushing heating element sets up on the cup, crushing heating element includes casing, heating device and sets up motor and the control panel in the casing, and the casing includes epitheca and inferior valve, and the motor is installed in the space that epitheca and inferior valve surround, and the motor shaft passes the inferior valve and extends downwards and stretch into in the cup, and the end of motor shaft is equipped with crushing sword, its characterized in that, heating device encircles the motor shaft setting, and heating device includes the insulating film base member and locates the heat-generating body of insulating film base member internal surface, the heat-generating body is located below the liquid level of the thick liquid in the cup.

2. The food processor as defined in claim 1, wherein the lower casing includes a cover body and a cylinder body coupled to the cover body, and the insulating film substrate is a ceramic film and is fixed to an outer side wall of the cylinder body by winding.

3. The food processor as claimed in claim 1 or 2, wherein the heating element is a resistive layer printed on an inner surface of the insulating film substrate.

4. The food processor of claim 3, wherein the resistive layer is distributed in a serpentine pattern on the dielectric film substrate.

5. The food processor of claim 1, wherein the heating device is disposed about the motor shaft and mounted to the lower housing, the motor shaft rotating relative to the heating device.

6. The food processor of claim 5, wherein the heating device is mounted to the lower housing by an insulating structure.

7. The food processor of claim 5, wherein the lower housing is a food grade heat resistant lower housing and the heating device is mounted directly on the lower housing.

8. The food processor of claim 1, wherein the heating device is directly nested or embedded in the motor shaft by the thermal insulation structure and rotates integrally with the motor shaft.

9. The food processor of claim 1, wherein a seal is provided between a bottom of the heating device and the motor shaft.

10. The food processor of claim 2, wherein a transition step surface is provided between the upper housing and the lower housing, the upper housing is a plastic upper housing, and the cylinder is a food grade metal lower housing or a ceramic lower housing.