A food processor using a reliable motor

Abstract

The utility model discloses a reliable food processor for use, including, base, is equipped with drive arrangement, cup body, installs on the base, is equipped with the rubbing crusher in the cup body bottom inboard in the cup body, rubbing crusher, including the knife rest casing, the rubbing piece of being located the knife rest casing outside, the driven disk of setting in the knife rest casing drive rubbing piece, drive arrangement drives driven disk to drive rubbing piece work, the knife rest casing and cup body bottom form the stop area in the axial adhesion of driven disk, the projection of stop area covers driven disk in the axial, and the knife rest casing and cup body bottom are equipped with the cooperation gap formation liquid storage cavity in the outer periphery of stop area. Set up the stop area in the knife rest casing and cup body bottom, and set up the liquid storage cavity in the outer periphery of stop area, to this to prevent liquid especially food particle to enter between the knife rest casing and cup body bottom, avoid the slurry to be cup body bottom and the knife rest casing when working heat and burn, thereby to avoid food processor to produce paste bottom, promote the health.

Description

Technical Field

[0001] This utility model relates to the field of household appliances, and in particular to a food processing machine. Background Technology

[0002] Existing blenders or food processors typically have a container for holding ingredients, a pulverizing component inside the container for grinding the ingredients, and a power unit to drive the pulverizing component. To facilitate cleaning of the container and the pulverizing component, a common approach is to use a base to house the power unit, with the container detachably mounted on the base. The power unit is then connected to the pulverizing component via a coupling. Alternatively, the pulverizing component is detachable, and the power unit directly drives it; for example, the power unit and the pulverizing component are mounted together on the container, or the power unit is also connected to the pulverizing component via a coupling. However, regardless of the power transmission method, the mechanical power transmission structure between the power unit and the pulverizing component generates noise due to mutual impact. Furthermore, the impact of the pulverizing component colliding with the food also acts on the power unit, further increasing the noise of the food processor.

[0003] Based on this, the applicant proposes a non-contact transmission method, such as the non-contact transmission method for a soymilk maker disclosed in Chinese Utility Model Patent CN201020015043.4. This method involves a magnetic non-contact upper and lower coupling between the motor and the grinding blades, including both upper-lower and lower-inner transmission methods. Because the couplings do not directly contact each other, noise and vibration are significantly reduced during operation. However, in this method, a transmission shaft is still required to connect the grinding element to the upper coupling. Since the transmission shaft passes through the bottom wall of the cup, there is still a risk of leakage.

[0004] Based on this, the applicant further proposes an improved non-contact transmission scheme, such as the indirect transmission food processing machine disclosed in Chinese invention patent CN201120194553.7, which includes an active coupling mounted on the motor's power output shaft and a driven coupling connected to the crushing blade. The driven coupling has a certain floating space in the axial direction, allowing the crushing blade to slide appropriately in the axial direction to disengage from jammed materials and enable the crushing blade to work normally. This scheme allows the cup body to be designed as a completely sealed structure with no mechanical connection holes at the bottom, thus better solving the leakage problem of the stirring cup.

[0005] Another existing technical solution involves installing a pulverizing device within the cup body. This pulverizing device is detachably rotatable within the cup body. The pulverizing device includes a housing, a pulverizing component located outside the housing, and a driven magnet located inside the housing. A drive shaft passing through the housing connects the pulverizing component and the driven magnet. When pulverization is required, an active disk within the main unit drives the driven magnet. When pulverization is not required, the pulverizing device can be installed or not. This expands the functional scope of the food processor.

[0006] For magnetic non-contact transmission schemes, the magnetic attraction between the active and driven magnets is inversely proportional to the square of the distance between them. Therefore, if the distance between the active and driven magnets increases, the magnetic attraction between them decreases rapidly, affecting the power transmission. In the aforementioned technical solution, if the housing is made of plastic, the thickness of the plastic needs to be increased to ensure the housing's strength, which weakens the magnetic attraction. Therefore, metal housings and cups are typically used.

[0007] However, applicants have found through product testing and verification that the above solution still has the following technical problems: For the metal shell and cup, especially the 300 series stainless steel or aluminum-based materials commonly used in the food industry (400 series stainless steel will be attracted and generate magnetic shielding, affecting power transmission), the high-speed rotating active magnet will generate eddy currents inside the shell and cup. The eddy currents will cause the shell and cup to heat up, especially the heat will be concentrated in the center of rotation. This will cause the food held between the shell and cup to be burned, affecting the normal processing of the food processing machine. Summary of the Invention

[0008] The purpose of this invention is to provide a reliable food processing machine that, while ensuring magnetic transmission between the drive device and the driven disk, solves the technical problem of localized overheating and food burning caused by the high-speed rotating magnetic field affecting the detachable crushing device and the cup body.

[0009] To address the aforementioned technical problems, this application provides a reliable food processing machine, comprising: a base with a drive device; a cup body mounted on the base, the cup body containing a pulverizing device mounted on the inner side of the cup bottom; the pulverizing device including a blade holder housing, a pulverizing element located outside the blade holder housing, and a driven disk disposed within the blade holder housing to drive the pulverizing element, the drive device driving the driven disk to operate the pulverizing element; the blade holder housing and the cup bottom fitting together in the axial projection coverage area of ​​the driven disk to form a stop area, and a fitting gap between the blade holder housing and the cup bottom on the outer periphery of the stop area to form a liquid storage cavity.

[0010] As mentioned earlier, to ensure a sufficiently small distance between the drive device and the driven disk, the blade holder housing and the bottom wall of the cup are typically designed to fit snugly together. However, since the pulverizing device is detachably placed inside the cup, liquid inevitably enters between the blade holder housing and the cup. Existing solutions include using seals to prevent liquid from entering, or using a recessed platform at the bottom of the cup, placing the pulverizing device within the platform. The tight fit between the pulverizing device and the side wall of the platform prevents liquid from flowing between the blade holder housing and the bottom of the cup. However, this creates negative pressure on the pulverizing device, making it difficult to remove it from the cup. In this application, to ensure reliable driving of the pulverizing device by the driving device, a stop area is provided between the blade holder housing and the cup bottom, which axially covers the projected area of ​​the driven disk. This ensures that the distance between the driven disk and the driving device is sufficiently close, and simultaneously prevents food from entering between the blade holder housing and the cup bottom. Even if the blade holder housing and the cup body are affected by a high-speed rotating magnetic field and generate eddy currents, these currents will not directly affect the internal food, thus preventing the food from burning. It should also be noted that, due to manufacturing limitations, it is practically impossible to completely prevent water from entering between the blade holder housing and the cup body. However, for the food to be processed, such as when making soy milk, if only some water enters between the blade holder housing and the cup bottom, the water will vaporize directly upon heating without causing burning. Therefore, this application provides a liquid storage cavity on the outer periphery of the stop area, and the fitting section connecting the liquid storage cavity and the stop area prevents food from entering the stop area. The food in the liquid storage cavity is relatively abundant and not enough to be quickly heated and burned by the vortex generated by the blade housing and cup body. Furthermore, the liquid storage cavity located on the outer periphery of the stop area is also far away from the center of the vortex, so it is less affected by heating and can also avoid being burned.

[0011] Preferably, the bottom of the cup body is provided with a downwardly recessed platform, and the knife holder housing extends into the platform.

[0012] A recessed platform is provided at the bottom of the cup body, and the blade holder housing extends into the platform to define the pulverizing device, ensuring stable and reliable positioning between the pulverizing device and the driving device to guarantee stable power transmission. In addition, the blade holder housing can preferably reduce the amount of liquid entering the bottom of the blade holder housing through the gap between the side wall of the platform and the blade holder housing by adjusting the fitting gap with the side wall of the platform. In particular, it can prevent large pieces of material from entering the bottom of the blade holder housing through the gap, thereby better preventing the bottom of the cup body from sticking.

[0013] Preferably, the top of the side wall of the knife holder housing is provided with an outwardly extending extension portion, the axial projection of the extension portion covers the sinking platform, and the extension portion is close to the bottom of the cup.

[0014] In normal use, general users install the pulverizing device at the bottom of the cup without adding any materials or water. Since there is no other liquid between the pulverizing device and the settling platform, installation is quick and easy. However, some users install the pulverizing device after adding water, especially after placing the cup on the base. When the pulverizing device is placed in the settling platform, the magnetic force of the drive device causes it to rapidly push the liquid outwards. This high-speed liquid risks splashing upwards through gaps in the side walls. By further extending an outward-facing extension on the side wall of the blade holder housing, with the axial projection of the extension covering the settling platform, even if the liquid in the settling platform is squeezed and rapidly discharged upwards, it will be blocked by the extension, preventing direct splashing to the outside of the cup. Instead, the liquid is guided to the perimeter of the cup, i.e., the inner wall, keeping it inside the cup. Furthermore, by setting the outer extension close to the bottom of the cup, it can better block the discharged liquid and also block the particulate food from the outside, so as to prevent the food from entering between the crushing device and the bottom of the cup.

[0015] Preferably, a ventilation channel is provided between the outer wall of the tool holder housing and the inner wall of the sinking platform.

[0016] As mentioned earlier, although the user is not affected by liquid when installing the pulverizing device when there is no food inside the cup, if the gap between the pulverizing device and the side wall of the sink is too small, the air inside the sink cannot be quickly expelled during normal installation, creating a reaction force on the pulverizing device and preventing it from being quickly installed in place. Furthermore, when the user needs to remove the pulverizing device, the inability of gas to quickly enter the sink makes it difficult to remove due to atmospheric pressure. Therefore, while ensuring a good fit between the outer wall of the blade housing and the inner wall of the sink, a ventilation channel is provided between them. This ensures that food does not enter the bottom of the pulverizing device and allows for easy removal and placement of the pulverizing device, facilitating the use of the food processor.

[0017] Preferably, the bottom of the cup body is provided with a heating wall connected to the upper end of the platform, and a heating element is fixed on the outside of the heating wall and the heating wall extends outward from bottom to top.

[0018] Existing food processing machines, such as blenders and soy milk makers, primarily function to simultaneously grind and cook ingredients. A preferred solution is to install a heating element on the outside of the cup body to heat the ingredients. However, if this heating element is close to the center of the bottom of the cup body, the heat from the heating element itself will combine with the heat generated by the vortex at the bottom of the cup body, making the bottom of the cup more prone to scorching. This application features a recessed platform at the bottom of the cup body, with a heating wall formed on the area above the platform. This heating wall extends outwards from the area connected to the platform, forming a cone shape that is smaller at the bottom and larger at the top. When the grinding device is installed within the platform, its top wall cooperates with the heating wall to form a grinding chamber within the cup body. This allows the ingredients to be processed within the grinding chamber, preventing them from entering the platform, particularly between the blade housing and the bottom of the cup. This provides efficient grinding and cooking while better preventing scorching within the cup body. Furthermore, the heating element is located on the outer wall of the heating wall, away from the stop area at the center of the bottom of the sinking platform. The heat generated by the heating element will not or will be transferred to the stop area in little to no way, thus preventing the temperature in the stop area from rising further.

[0019] Preferably, the bottom of the cup is provided with a downward-facing groove on the outer periphery of the stop area, and the groove forms the liquid storage cavity between itself and the bottom wall of the knife holder housing.

[0020] The groove surrounds the outer periphery of the stop area. In particular, when the cup body is made of metal, the groove is formed by directly pressing the cup body downwards. The groove can form a liquid storage cavity to prevent food and liquid from entering the stop area. It also strengthens the bottom of the cup to prevent deformation of the stop area located inside the circumference of the groove, ensuring the flatness of the stop area. This ensures a tighter fit between the stop area and the bottom surface of the knife holder housing, and ultimately prevents liquid from entering the stop area, thus preventing the bottom of the cup from sticking.

[0021] Preferably, the tool holder housing has a tool holder base plate protruding into the countersink, and the tool holder base plate surrounds the outer periphery of the stop area of ​​the tool holder housing.

[0022] Furthermore, a blade holder base plate protruding towards the settling trough is provided at the bottom of the blade holder housing. When the pulverizing device is installed, the blade holder base plate extends into the liquid storage cavity formed by the settling trough. This creates a curved, contracting connecting area between the liquid storage cavity and the stop area, allowing for better control of the liquid in the storage cavity entering the stop area, thus better preventing the cup from sticking to the bottom. Preferably, the blade holder base plate is arranged around the outer periphery of the stop area. This means the blade holder base plate protrudes downwards relative to the stop area of ​​the blade holder housing. When the user places the pulverizing device alone, the blade holder base plate contacts the workbench surface, better preventing the stop area of ​​the blade holder housing from being easily affected by the workbench surface, thus ensuring a tight fit between the blade holder housing and the cup. For example, if the user accidentally causes the stop area of ​​the blade holder housing to come into contact with other protrusions, the stop area may deform, affecting the tightness of the fit. Furthermore, the driven disk typically contains a permanent magnet. This is done to provide strong magnetic attraction between the driven disk and the drive unit, and to ensure a small gap between them. This also enhances the magnetic attraction between the drive unit and the driven disk. However, this can increase the magnetic attraction between the driven disk and external components. For example, when a user places the shredder on a magnetic workbench, such as a magnetic basin, the bottom of the blade holder is in close contact with the surface, creating a strong magnetic attraction between the driven disk and the surface. This makes it difficult for the user to retrieve the shredder. By having the blade holder base plate in direct contact with the table surface, the distance between the driven disk and the table surface is increased, which greatly reduces the magnetic attraction between the driven disk and the table surface, making it easier for the user to operate the pulverizing device. During operation, the blade holder base plate only extends into the settling tank and does not contact the bottom of the cup, thus not increasing the distance between the driven disk and the drive device, and therefore not affecting the magnetic attraction between them.

[0023] Preferably, the stop area covers the axial projection of the driven disk and the drive device.

[0024] For the drive device and the driven disk, their sizes can vary depending on the specific transmission requirements. For example, when the drive device is an active disk that matches the driven disk, it is preferably set to have the same outer diameter as the driven disk. In this case, the stop area can simultaneously cover both the drive device and the driven disk. Of course, since the space of the drive device and the driven disk is different, the active disk can also be set to a larger outer diameter, thereby providing stronger magnetic attraction. In this case, although the stop area covering only the driven disk can prevent food from entering between the pulverizing device and the cup to prevent sticking, the area located on the outer periphery of the driven disk will still be affected by the rotating magnetic field generated by the active disk, forming eddy currents and generating heat inside the cup and blade housing. To better prevent sticking, it is preferable to enlarge the stop area to also cover the active disk, thereby better solving the technical problem of localized overheating. Furthermore, the driving device can also be configured as a coil driving the driven disk. The coil generates a rotating magnetic field through a changing current to drive the driven disk. Since the coil itself does not need to rotate, the coil can be configured with different sizes depending on the structure, and even with multiple inner and outer rings. This allows it to adapt to different driven disks, enabling the food processor to have multiple different cups with different grinding devices inside; or, the food processor can have different grinding devices inside the same cup to achieve different processing functions. However, for the stop area, the problem of scorching caused by localized overheating of the cup can be solved by adapting the driving device.

[0025] Preferably, the bottom of the tool holder housing is further provided with a downwardly protruding positioning ring, which is located on the outer periphery of the stop area of ​​the tool holder housing.

[0026] The positioning ring protrudes downwards from the stop area, serving a similar function to the blade base plate. This prevents the driven disk from magnetically attracting the table surface when the user operates the pulverizing device, facilitating operation. Furthermore, the positioning ring, located near the bottom of the cup, creates a stop gap between itself and the cup bottom. This gap isolates the processing chamber within the cup from the stop area, further enhancing the isolation effect and better preventing food and liquid from entering the stop area, thus solving the problem of food residue sticking to the bottom of the cup.

[0027] Preferably, the outer side of the bottom of the cup body is provided with a transmission cavity below the stop area for the driving device to extend into.

[0028] A transmission cavity is directly provided at the bottom of the cup body. The driving device extends into the transmission cavity and can be close to the outer side of the cup bottom, thereby reducing the distance between the driving device and the cup bottom. Thus, when the pulverizing device is installed in the cup body and the cup body is then installed on the base, the distance between the driven disk and the driving device is minimized, thereby ensuring the magnetic attraction between the driving device and the driven disk. Of course, the driving device can be configured in various ways. For example, when the driving device includes a drive motor and a driving disk, only the driving disk needs to extend into the transmission cavity, without necessarily including the drive motor; or, when the driving device is a drive coil, only the top of the drive coil needs to extend into the transmission cavity to cooperate with the driven disk. Attached Figure Description

[0029] Figure 1 This is a cross-sectional view of the overall structure of the first embodiment of the food processing machine of this utility model.

[0030] Figure 2 This is a schematic diagram showing the disassembled state of the drive device and the crushing device in the first embodiment of the food processing machine of this utility model.

[0031] Figure 3 This is a schematic diagram of the second state of the drive device and crushing device of the first embodiment of the food processing machine of this utility model.

[0032] Figure 4 for Figure 3 A magnified view of part A in the diagram.

[0033] Figure 5 This is a cross-sectional view of the cup structure of the second embodiment of the food processing machine of this utility model.

[0034] Figure 6 for Figure 5 A magnified view of part B in the diagram.

[0035] Figure 7 This is a schematic diagram of the disassembled state of the drive device and the cup body in the second embodiment of the food processing machine of this utility model.

[0036] Figure 8 This is a schematic diagram of the crushing device structure of the second embodiment of the food processing machine of this utility model.

[0037] Figure 9 This is a schematic diagram of the cup body in use in the second embodiment of the food processing machine of this utility model.

[0038] Figure 10 This is a cross-sectional view of the cup structure of the third embodiment of the food processing machine of this utility model.

[0039] Figure 11 for Figure 10 A magnified view of part C in the diagram.

[0040] Figure 12 This is a schematic diagram of the crushing device structure of the third embodiment of the food processing machine of this utility model.

[0041] Figure 13 This is a schematic diagram of the overall structure of the fourth embodiment of the food processing machine described in this utility model.

[0042] Figure 14 This is a partial schematic diagram of the fourth embodiment of the food processing machine described in this utility model.

[0043] The labels in the diagram correspond to the following names:

[0044] 100. Base; 110. Motor; 120. Active disk; 130. Drive stage; 131. Drive coil; 200. Cup body; 201. Outer cup body; 202. Inner cup body; 203. Transmission chamber; 210. Cup bottom; 211. Settling platform; 212. Liquid storage chamber; 213. Lower stop plate; 214. Heating wall; 215. Heating tube; 3. Crushing device; 310. Crushing blade; 311. Blade handle; 320. Blade holder housing; 321. Upper stop plate; 322. Blade holder base plate; 323. Outer extension; 324. Blade holder side plate; 325. Positioning ring; 326. Vent groove; 327. Base plate; 328. Outer ring groove of base plate; 330. Driven disk; 340. Blade shaft. Detailed Implementation

[0045] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0046] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0047] Furthermore, it should be understood that in the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. As for positional relationships such as "upstream" and "downstream," they are based on the positional relationship when the fluid is flowing normally.

[0048] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0049] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0051] Food processors such as blenders, food processors, and soy milk makers typically rely on a motor to drive a grinding element that collides with and cuts the ingredients placed inside the container, thus pulverizing them. Currently, in blenders, the motor speed often exceeds 10,000 rpm during operation. During the collision and cutting process between the grinding element and the ingredients, discontinuous and random impacts occur, generating vibrations and noise. These vibrations are transmitted back to the motor and the machine base, causing significant vibration and noise in these components as well. As a technology leader in food processors, the applicant is continuously exploring solutions to the problems of motor vibration and noise.

[0052] As mentioned earlier, the applicant proposed a non-contact power transmission method to achieve power transfer between the motor and the crushing component. During implementation, the applicant explored several technical directions, including using a magnetic disk connected to the crushing component, a non-magnetic disk (utilizing eddy currents within the non-magnetic component to generate a reverse magnetic field for power transmission), and fixing the driven disk to the cup body and power-connecting it to the crushing component, with the driven disk and crushing component forming a crushing device, and the crushing device being detachably installed within the cup body. Regarding the crucial aspect of magnetic transmission—ensuring the magnetic attraction between the driving device and the driven disk—the applicant proposed several methods to ensure the driven disk is close to the bottom of the cup. Correspondingly, the driving device is also positioned close to the outer bottom of the cup, thereby reducing the distance between the driving device and the driven disk and ensuring a sufficiently strong magnetic attraction between them.

[0053] Further research revealed that the cup held between the drive unit and the driven disk is typically made of metal. This is because, firstly, plastic materials pose hygiene concerns, and secondly, the required thickness of plastic increases the distance between the drive unit and the driven disk, affecting their magnetic attraction. In the food processing machine industry, 300-series stainless steel or aluminum-based materials are generally used (300-series stainless steel meets food hygiene testing requirements, and 400-series stainless steel is magnetically attracted, creating magnetic shielding and affecting magnetic attraction). However, the high-speed rotating drive unit, whether using a permanent magnet active disk or a rotating magnetic field drive coil, generates a high-speed rotating magnetic field. This high-speed rotating magnetic field creates eddy currents inside the cup, causing the metal cup to heat up. For non-removable crushing devices, since the cup is usually in direct contact with the food being processed, the heat generated by the cup is quickly absorbed by the food, having little impact on it. Furthermore, the food processing machine typically has its own heating element to heat the food, so the eddy currents generated by the cup are negligible.

[0054] However, when the applicant further optimized the technical solution of making the crushing device and the cup body detachable, it was found that the detachable crushing device is placed directly in the cup body, and the crushing device and the cup body are close to each other. However, in the existing solution, a small amount of liquid will enter between the crushing device and the bottom of the cup. This part of the food is quickly heated by the heat generated by the bottom of the cup and the bottom shell of the crushing device. If it is mixed with soy milk or other liquids, the remaining food will be overheated and burnt, thereby reducing the quality of the food processing pulp and also reducing the user's experience.

[0055] Through in-depth research, the applicant discovered that existing technical solutions do not necessarily result in food scorching. If the sealing structure between the crushing device and the cup is feasible, and the slurry does not enter between the crushing device and the cup, then the problem of food scorching will not occur. Even if the fitting precision between the crushing device and the cup is sufficiently good, food scorching can be avoided. However, this would increase the cost of the food processor and increase the distance between the crushing device and the drive device, thus weakening the magnetic attraction between them. How to achieve detachable crushing device while ensuring the distance between the drive device and the crushing device is sufficient to maintain the magnetic attraction, and effectively solve the technical problem of food entering between the crushing device and the cup and being heated and scorched, has become the urgent problem to be solved in this application.

[0056] To address the aforementioned technical problems, this application provides a reliable food processing machine. The food processing machine includes: a base 100, within which a drive device is installed. This drive device can be an active disk driven by a motor, or it can be a coil, utilizing the rotating magnetic field generated by the coil for magnetic drive; and a cup body 200 mounted on the base 100. The cup body 200 contains a detachable pulverizing device 3 installed inside the cup bottom. The pulverizing device 3 includes a blade housing, a pulverizing component located outside the blade housing, and a driven disk disposed within the blade housing. When the user installs the pulverizing device 3 into the cup body, the pulverizing component cuts and pulverizes the food inside the cup, completing the pulverizing process. The driven disk, located within the blade housing, is enclosed and unaffected by the food inside the cup, maintaining optimal working condition. Preferably, the pulverizing component and the driven disk are connected via a blade shaft passing through the blade housing, enabling the driven disk to drive the pulverizing component to rotate. When the pulverizing device is installed at the bottom of the cup, to solve the aforementioned technical problem of food entering between the pulverizing device and the cup causing scorching, this application provides a stop zone formed by the blade holder housing and the cup bottom fitting together. This stop zone covers the area formed by the driven disk along its axial direction. The stop zone prevents food from entering between the pulverizing device and the cup bottom, particularly preventing food from entering the area covered by the driven disk, thereby avoiding eddy current heating and scorching caused by the magnetic field covering the food. Furthermore, this application also provides a liquid storage cavity between the blade holder housing and the cup bottom, the liquid storage cavity surrounding the outer periphery of the stop zone.

[0057] It should be noted that the applicant has discovered that if only water enters between the grinding device and the bottom of the cup, even if the water is heated and vaporized, there will be no residue, and no scorching will occur between the grinding device and the bottom of the cup. The main problem is that when processing ingredients such as soy milk, food residue from the soy milk can enter between the grinding device and the bottom of the cup. Heating this residue can cause it to scorch, resulting in scorching. Therefore, better preventing food residue from entering between the grinding device and the cup will solve the main problem of scorching. The applicant has also discovered that completely sealing the grinding device and the bottom of the cup, or ensuring a tight fit between them, leads to the aforementioned limitations on the precision of the food processing machine and production costs. Therefore, the applicant is required to break with existing technical conventions and instead set up a liquid storage chamber around the outer perimeter of the existing stop area. This liquid storage chamber is used to store a portion of the slurry that enters between the crushing device and the cup body. In particular, it can store food residue that enters between the crushing device and the cup body, thereby preventing slurry and food residue from entering between the crushing device and the cup body. This would better solve the technical problem of food smearing at the bottom of the food processing machine and ensure the safe and reliable use of the food processing machine.

[0058] Specifically, such as Figures 1-14 As shown, this application provides a reliable food processing machine, which includes a base 100 and a cup 200 disposed on the base 100. The base 100 is provided with a drive device, preferably, as shown in the figure. Figure 1 As shown, the driving device includes a motor 110 disposed within the base 100 and an active disk 120 disposed on the motor shaft of the motor 110. The bottom of the cup body 200 has a transmission cavity 203 into which the transmission device extends, and the active disk 120 extends into the transmission cavity 203 to fit against the cup body 200. Alternatively, the active disk 120 can be completely disposed within the base 100 and fitted against the cup body 200. For example, the base 100 may have a metal cover covering the active disk 120, thus eliminating exposed rotating parts and improving safety. Of course, as an alternative solution, such as... Figure 13 , 14 As shown, the driving device is a drive coil 131 disposed within the base 100. The drive coil 131 itself does not need to rotate; instead, the control device of the food processing machine generates a rotating magnetic field from the drive coil 131, thereby driving the driven disk within the cup to rotate. The active disk 120 typically contains a permanent magnet; while the drive coil 131 does not contain a permanent magnet, a magnetic conductor is usually disposed within it to enhance its magnetism.

[0059] The cup body 200 is detachably mounted on the base 100. Although existing technologies include directly mounting the motor inside the cup body to drive the pulverizing device, this results in an excessively heavy cup body, making it inconvenient for user operation and not a superior technical choice. To facilitate user operation, this application provides a detachable pulverizing device 3 within the cup body 200. This allows the user to remove the cup body 200 from the base 100 and further remove the pulverizing device 3 from the cup body 200, making it particularly convenient for cleaning the cup body and the pulverizing device 3.

[0060] The cup body 200 primarily functions to reliably connect to the base 100 and house the pulverizing device. Therefore, the cup body 200 can be configured in various structural shapes. Preferably, such as... Figure 1 , Figure 5 and Figure 10 As shown, the cup body 200 includes an outer cup body 201, an inner cup body 202, and a cup base 210. The cup base 210 is sealed to the inner cup body 202 to form a processing cavity inside. The outer cup body 201 is fitted over the inner cup body 202 and the cup base 210. The outer cup body 201 can both block the noise generated when the cup body 200 is working and prevent the user from being burned when directly touching the inner cup body 202. Preferably, the inner cup body 202 is made of glass, the cup body 210 is made of stainless steel, and the outer cup body 201 is made of transparent plastic. Of course, as a more general cup body structure, such as Figure 13 As shown, the cup body 200 has only a glass body and a metal bottom. Alternatively, the cup body can be directly machined from a single piece of stainless steel, or even made from a single piece of glass or ceramic. Such alternatives are common choices in the art, requiring only that the magnetic drive between the crushing device and the driving device be satisfied.

[0061] To avoid the passive disk being affected by the processed food when it is directly exposed, such as Figures 1-14As shown, the pulverizing device 3 includes a blade holder housing 320, a pulverizing element, and a driven disk 330. The pulverizing element can be configured with different pulverizing structures according to the different pulverizing needs of the food processing machine. Preferably, in this application, the pulverizing element is configured as a pulverizing blade, which cuts and pulverizes the food rotating inside the cup body 200 at high speed. The driven disk 330 is disposed inside the blade holder housing 320, and the blade holder housing 320 forms a closed inner cavity to house the driven disk 330. The driven disk 330 and the pulverizing blade 310 are connected by a blade shaft 340. To ensure reliable rotation of the blade shaft 340, the pulverizing device 3 usually also provides a bearing or other structure between the blade holder housing 320 and the blade shaft 340. This is a conventional technical solution in the art and will not be described in detail here.

[0062] To prevent processed food from entering between the grinding device 3 and the cup bottom 210, this application provides a stop area between the blade holder housing 320 and the cup bottom 210. The axial projection of the stop area covers the driven disk 330. Typically, the stop area is formed by the blade holder housing 320 and the cup bottom 210 fitting together to prevent food from entering between them. Furthermore, by ensuring the axial projection of the stop area covers the driven disk 330, no food will enter within the area covered by the rotating magnetic field generated by the driven disk 330, thus preventing the food from being overheated and burned. To further prevent food from entering between the blade holder housing 320 and the cup bottom 210, this application provides a fitting gap between the blade holder housing and the cup bottom, allowing food to enter into the gap to form a liquid storage cavity 212 for accommodating the food. The liquid storage cavity 212 surrounds the outer periphery of the stop area. In this way, even if some food enters between the blade housing 320 and the cup bottom 210, it will accumulate in the liquid storage chamber 212. Due to the significant variation in the fit clearance between the liquid storage chamber 212 and the stop zone, the slurry cannot enter the stop zone. Furthermore, even if a very small amount of water enters the stop zone, it will not be able to reach much of the food mixed in the slurry. Thus, the water entering the stop zone is quickly heated and evaporated, preventing any burnt residue. By setting up the stop zone and the liquid storage chamber, a multi-stage limiting structure of open → contraction → further extreme contraction is formed between the processing device and the cup bottom, which can more effectively prevent processed food from flowing between the grinding device and the cup bottom. Therefore, even if eddies are generated inside the cup body and grinding device, causing heat, there is no heated or burnt medium, preventing burnt residue. This ensures the normal processing of other food items and improves the user experience.

[0063] As a preferred implementation method, such as Figures 1-4 As shown, the bottom of the cup bottom 210 is further provided with a downwardly recessed platform 211, and the blade housing 320 of the pulverizing device 3 extends into the platform 211. The platform 211 can both limit the pulverizing device 3 and, through the cooperation between the platform 211 and the blade housing 320 on the side wall, further prevent food from entering between the blade housing 320 and the cup bottom 210. A motor 110 is provided inside the base 100, and an active disk 120 is provided at the top of the motor shaft of the motor 110. When the cup body 200 is installed on the base 100, the active disk 120 is in close contact with the bottom of the platform 211 to ensure that the distance between the active disk 120 and the driven disk 330 is small enough, thereby ensuring that the magnetic attraction between the active disk 120 and the driven disk 330 is large enough.

[0064] The bottom shell of the blade holder housing 320 has an upper stop plate 321, and the bottom wall of the sinking platform 211 has a lower stop plate 213. When the crushing device 3 is installed in the sinking platform 211, the upper stop plate 321 and the lower stop plate 213 fit together and form a stop area between them.

[0065] In the axial direction, the projection of the stop area covers the driven disk 330, thereby ensuring that the areas of the driven disk 330 that generate eddies are all covered by the stop area, preventing smearing. Preferably, the stop area further covers the drive device, such as... Figures 2-4 As shown, the stop area axially covers both the driven disk 330 and the active disk 120. It should be noted that the area where food residue accumulates is mainly between the pulverizing device and the inner side of the bottom wall of the cup. Therefore, by setting the stop area to cover the driven disk, the problem of food residue accumulation can be solved to the greatest extent. Typically, the outer diameters of the active and driven disks are similar, so the stop area can usually cover both. When the driving device is composed of a drive coil, it is not necessarily required that the stop area cover the drive coil, because a magnetic core is usually placed inside the drive coil. The magnetic lines of force generated by the drive coil mainly pass through the magnetic core and extend towards the driven disk. Therefore, setting the stop area to cover the area of ​​the magnetic core is sufficient. Of course, setting the stop area to completely cover the area of ​​the drive coil can better prevent food residue accumulation.

[0066] The bottom of the cup body is provided with a downward groove on the outer periphery of the stop area. Preferably, the groove surrounds the outer periphery of the lower stop plate 213 and forms the liquid storage cavity 212.

[0067] In this embodiment, when the pulverizing device is placed inside the cup, it is first installed inside the settling platform. The cooperation between the pulverizing device and the settling platform forms the first layer of barrier against the food in the cup, preventing the food from entering between the pulverizing device and the bottom of the cup. Furthermore, a liquid storage chamber is provided to accommodate a small amount of liquid flowing between the pulverizing device and the settling platform, which in particular can prevent food mixed in the slurry from flowing into the stop area, thereby protecting the stop area and ultimately preventing the bottom of the cup from sticking.

[0068] It should be noted that the main purpose of setting the recessed platform 211 is to form a limiting space at the bottom of the cup body to define the pulverizing device, and to facilitate the formation of a pulverizing processing chamber using the pulverizing device and the bottom sidewall of the cup body. The recessed platform and the stop area are not necessarily related. For example, the pulverizing device and the bottom of the cup can be directly fitted together to form a stop area, and a liquid storage cavity can be formed on the outer periphery of the stop area. Alternatively, the bottom of the cup can have an upward-facing protrusion, the blade holder housing can be sleeved on the protrusion, the top wall of the protrusion can be tightly fitted with the bottom wall of the blade holder housing to form a stop area, and the liquid storage cavity can be formed on the outer periphery of the stop area.

[0069] As another preferred implementation, such as Figures 5-9 As shown, the bottom of the blade holder housing 320 is further provided with a blade holder base plate 322. The blade holder base plate 322 surrounds the outer periphery of the upper stop plate 321 and extends towards the settling groove at the bottom of the cup body. When the pulverizing device is installed in the settling platform 211, the blade holder base plate 322 extends into the settling groove and forms the liquid storage cavity 212 between the blade holder base plate 322 and the settling groove.

[0070] Because the blade holder base plate 322 protrudes axially downward relative to the upper stop plate 321, when the pulverizing device 3 is installed, the blade holder base plate 322, the upper stop plate 321, the lower stop plate 213, and the bottom wall of the settling tank together form a folded contraction section that decreases in size from large to small. This folded contraction section further increases the resistance to the slurry entering the stop area, ensuring that no liquid enters the stop area. At the same time, the blade holder base plate 322 surrounds the outer periphery of the upper stop plate 321. When liquid is injected into the cup, the blade holder base plate 322 and the upper stop plate 321 together form an air-receiving cavity. This air-receiving cavity prevents liquid from entering the bottom of the upper stop plate 321, further ensuring that no liquid flows into the stop area.

[0071] Preferably, the tool holder housing 320 has a tool holder side plate 324 that matches the countersunk stage 211 on its side. Typically, the tool holder side plate 324 is cylindrical, similar to the countersunk stage 211. The top of the side wall of the tool holder housing 320 also has an outwardly extending extension 323. For example... Figure 6 As shown, the outer diameter of the extension portion 323 is larger than the outer diameter of the countersunk stage 211, such that the axial projection of the extension portion 323 covers the countersunk stage 211. The advantage of this arrangement is that, as... Figure 9 As shown, when there is water in the cup, a large amount of water is present in the cup bottom 210, especially in the sink 211. During the installation of the pulverizing device 3, the water in the sink 211 is squeezed outwards. During this process, because the fit between the blade holder housing 320 and the side wall of the sink 211 is small, the space for water discharge is small, which causes the water to be squeezed outwards by a large pressure, resulting in splashing. In particular, when the driven disk is quickly magnetically attracted into place by the magnetic force of the drive device, the liquid is quickly squeezed and can fly out of the cup. The extension 323 is used to block the gap between the blade holder housing 320 and the sink 211. Even if liquid splashes upwards from the gap between the two, it will not splash out of the cup due to the blocking effect of the extension.

[0072] Preferably, the bottom of the cup body is provided with a heating wall 214 connected to the upper end of the sink 211. A heating element is provided on the outer periphery of the heating wall 214. In this embodiment, the heating element is a heating tube 215 welded to the outer periphery of the heating wall 214. Of course, the heating element can also be other forms, such as a heating film, heating wire, heating plate, etc. The heating wall 214 gradually slopes outward from bottom to top along the axial direction, so that the interior of the heating wall 214 forms a cone shape that is smaller at the bottom and larger at the top. The extension portion 323 is set close to the heating wall 214 so that the heating wall 214 and the top wall of the blade holder housing 320 together form the bottom of the crushing chamber of the cup body. The heating tube 215 is located outside the heating wall 214 and away from the lower stop plate 213. The heat generated by the heating tube 215 will not be transferred to the lower stop plate 213 or will be transferred to very little, thus preventing the temperature in the area of ​​the lower stop plate 213 from rising further. To facilitate the handling of the crushing device 3, a handle 311 is provided on the top of the crushing blade 310.

[0073] like Figure 6 , Figure 7As shown, with this configuration, the food is mostly concentrated above the blade housing 320 and the heating wall 214. The extension portion 323 and the heating wall 214 are adjacent to each other to form a first layer that prevents the food from entering. Because the extension portion 323 extends towards the heating wall 214, the pulverizing blade 310 carries the food along the top wall of the blade housing 320 to the extension portion 323, then to the heating wall 214, and upwards, without flowing into the gap between the blade housing 320 and the settling platform 211. Combined with the gap fit between the blade side plate 324 and the settling platform 211, the fit between the blade base plate 322 and the settling tank, and the arrangement of the liquid storage chamber 212, multiple paths are combined to ultimately prevent the food from entering the stop area.

[0074] As another preferred option, such as Figures 10-12 As shown, the top of the blade holder housing 320 is further provided with a downwardly protruding positioning ring 325. In this embodiment, the positioning ring 325 is provided to protrude downward from the bottom of the blade holder base plate 322, so that when the crushing device 3 is installed in place, the positioning ring 325 can be closer to the bottom wall of the cup bottom, so that a fitting gap is formed between the positioning ring 325 and the cup bottom to prevent the food from flowing from the positioning ring 325 to the stop area.

[0075] Additionally, by reducing the fit gap between the blade holder side plate 324 and the recessed platform 211, food can be prevented from entering the stop area through the gap between the blade holder side plate 324 and the recessed platform 211. However, if the gap is too small, the liquid or gas inside the pulverizing device 3 will be difficult to squeeze out from the fit gap during installation, making it difficult to install the pulverizing device 3. Correspondingly, when the user needs to remove the pulverizing device 3, gas or liquid will also be difficult to inject into the recessed platform from the fit gap, and the vacuum negative pressure formed in the recessed platform increases the difficulty of removing the pulverizing device 3. Thus, as Figure 12 As shown, a ventilation groove 326 is provided on the side plate 324 of the blade holder. When the crushing device 3 is installed or removed, the ventilation groove 326 connects the inside and outside of the settling platform, making it convenient for the user to operate the crushing device 3.

[0076] The bottom of the tool holder housing may not have the tool holder base plate, but instead the positioning ring may only be provided on the outer periphery of the upper stop plate. Alternatively, the bottom of the cup may have an upwardly protruding positioning ring located within the recess, which engages with the bottom wall of the tool holder housing.

[0077] As another preferred option, such as Figure 13 , Figure 14As shown, in this design, a drive platform 130 is provided on the top of the base 100, and a drive coil 131 is provided on the inner side of the drive platform 130. Preferably, the drive coil 131 is attached to the inner side of the top wall of the drive platform 130. Since the drive coil 131 generates a rotating magnetic field through the change of current during operation, the drive coil 131 itself does not rotate, thus eliminating the need for rotating parts inside the base 100. Therefore, the base 100 is more stable and operates with lower noise.

[0078] The bottom of the blade holder housing 320 has an opening, and a base plate 327 is provided at the opening. An upper stop plate 321 is formed at the center of the base plate 327. The upper stop plate 321 and the lower stop plate 213 of the cup bottom are tightly fitted to form a stop area. The outer periphery of the bottom surface of the base plate 327 is provided with an outer ring groove 328. When the pulverizing device 3 is placed on the cup bottom, a liquid storage cavity is formed between the outer ring groove 328 and the cup bottom. The blade holder housing 320 includes an integrally formed blade holder side plate 324, and an extension portion 323 is formed on the top of the blade holder side plate 324.

[0079] The crushing device is installed inside the bottom of the cup, and the cup body is further disposed on the base. Since the top of the base is provided with a drive platform, the bottom of the cup body may not be provided with the transmission cavity. The drive platform enables the drive coil to be close to the bottom of the cup.

[0080] Since the driven disk relies on a rotating magnetic field to achieve non-direct contact, and to improve the hygiene of the cup body and reduce the thickness of the cup bottom, the cup bottom is preferably made of stainless steel or aluminum. Regardless of whether the driving device is a permanent magnet or a driving coil, eddy currents will inevitably be generated inside the metal cup bottom, causing it to heat up. This application solves the technical problem of scorching at the cup bottom by setting a stop zone to prevent liquid or food particles from entering between the crushing device and the cup bottom, thus eliminating the medium that could be heated and burned.

[0081] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the present utility model are covered by the scope of the claims of the present utility model, and will not be listed here.

Claims

1. A reliable food processor for use, characterized by, The food processing machine includes... The base is equipped with a drive unit; A cup body is mounted on the base, and a crushing device is installed inside the bottom of the cup body; A pulverizing device includes a blade holder housing, a pulverizing component located outside the blade holder housing, and a driven disk disposed inside the blade holder housing to drive the pulverizing component. The driving device drives the driven disk to drive the pulverizing component to work. The blade holder housing and the bottom of the cup body fit together axially on the driven disk to form a stop area. The axial projection of the stop area covers the driven disk. The blade holder housing and the bottom of the cup body have a fitting gap on the outer periphery of the stop area to form a liquid storage cavity.

2. The reliable food processor for use as claimed in claim 1, characterized in that, The bottom of the cup body is provided with a recessed platform, and the knife holder housing extends into the platform.

3. The reliable food processing machine as described in claim 2, characterized in that, The top of the side wall of the knife holder housing is provided with an outwardly extending extension portion. The axial projection of the extension portion covers the sinking platform, and the extension portion is close to the side wall of the cup body located at the upper end of the sinking platform.

4. The reliable food processing machine as described in claim 2, characterized in that, A ventilation channel is provided between the outer wall of the tool holder housing and the inner wall of the sinking platform.

5. The reliable food processing machine as described in claim 2, characterized in that, The bottom of the cup body is provided with a heating wall connected to the upper end of the platform. A heating element is fixed on the outside of the heating wall, and the heating wall extends outward from bottom to top.

6. The reliable food processor for use as in claim 1, wherein, The bottom of the cup body is provided with a downward recessed groove on the outer periphery of the stop area, and the liquid storage cavity is formed between the recessed groove and the bottom wall of the knife holder housing.

7. The reliable food processor for use as claimed in claim 6, wherein, The bottom of the tool holder housing is provided with a tool holder base plate that protrudes into the countersink, and the tool holder base plate surrounds the outer periphery of the stop area of ​​the tool holder housing.

8. The reliable food processing machine as described in claim 1, characterized in that, The stop area covers the axial projection of the driven disk and the drive device.

9. The reliable food processing machine as described in claim 1, characterized in that, The bottom of the tool holder housing is also provided with a downward protruding positioning ring, which is located on the outer periphery of the stop area of ​​the tool holder housing.

10. The reliable food processor for use as in claim 1, wherein, The bottom of the cup body, located below the stop area, has a transmission cavity into which the driving device can extend.

Images