Driving device for food processer, main machine for food processer and food processer

Abstract

The utility model discloses a driving device for a food processor, a main machine for the food processor and the food processor. The driving device for the food processer comprises a first motor, a second motor and a speed reduction assembly. The speed reduction assembly is assembled with the first motor and comprises a speed reduction assembly output shaft. The speed reduction assembly reduces the speed output by the first motor so as to output a first rotating speed. The speed reduction assembly output shaft comprises a through hole. The driving device for the food processer comprises a top end bearing and a bottom end bearing which are fixed to the two ends of the through hole. The second motor is assembled with the speed reduction assembly and comprises a second motor shaft. The second motor shaft is rotationally connected with the top end bearing and the bottom end bearing so as to output a second rotating speed. The driving device for the food processer comprises the first motor and the second motor, so that the cost is low, the first motor and the second motor are respectively controlled to obtain two rotating speeds, the control scheme is simple, and multi-scene family use requirements and a better cooking function (such as a wall breaking function) can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of small household appliances, and in particular to a driving device for a food processor, a main machine for a food processor, and a food processor. Background Art

[0002] The functions of a food processor may mainly include, but are not limited to, making soy milk, squeezing juice, making rice paste, mincing meat, shaved ice, making coffee and / or preparing facial masks, etc. In order to achieve multiple functions, some food processors have a dual-speed function so that different functions can be achieved through different speeds.

[0003] At present, people expect food processors to have low costs, be able to realize multiple functions and have good cooking effects (such as wall breaking effects). Utility Model Content

[0004] The purpose of the present application is to disclose a driving device for a food processor, a main machine for a food processor and a food processor. The driving device for a food processor has low cost, can realize multiple functions and has good wall breaking effect.

[0005] In a first aspect, the present application discloses a driving device for a food processor. The driving device for a food processor comprises a first motor, a second motor and a reduction assembly, wherein: the reduction assembly is assembled with the first motor and comprises a reduction assembly output shaft; the reduction assembly reduces the speed outputted by the first motor so as to output the first rotational speed of the driving device for a food processor through the reduction assembly output shaft. The reduction assembly output shaft comprises a through hole. The driving device for a food processor comprises a top bearing and a bottom bearing fixed at both ends of the through hole. The second motor is assembled with the reduction assembly and comprises a second motor shaft. The second motor shaft is rotationally connected with the top bearing and the bottom bearing so as to be coaxially arranged with the reduction assembly output shaft so as to output the second rotational speed of the driving device for a food processor.

[0006] As described above, since the food processor driving device includes a first motor and a second motor, the cost of the first motor and the second motor is low, for example, the cost is lower than that of a reluctance motor, and the first motor and the second motor are respectively controlled by a switch to obtain two speeds, and the control scheme is simple; the food processor driving device can output two speeds, and combined with the first motor and the second motor, it can realize the low-cost, multi-functional and multi-scenario household use requirements. In particular, the second motor shaft of the second motor outputs a second speed, and the second speed is high, which can well realize the cooking function (such as the wall breaking function), for example, in the scene of making soy milk or dry grinding, it can make the food more delicate. On the other hand, the top bearing and the bottom bearing are fixed at both ends of the through hole, and the second motor shaft is connected to the top bearing and the bottom bearing in a transmission manner, so that the second motor shaft is limited by the top bearing and the bottom bearing at two locations in the axial direction, and the dual-speed coaxial output is realized through a simple and compact structure, and the concentricity of the second motor shaft is improved. When the second motor rotates at a high speed, the noise can be reduced, and the second motor shaft is not easy to swing, etc.

[0007] In some embodiments, the first motor is perpendicular to the second motor; the reduction assembly includes a reversing assembly, the reversing assembly includes a reversing wheel and the reduction assembly output shaft, the reversing wheel is engaged with the first motor shaft of the first motor and connected to the reduction assembly output shaft.

[0008] As described above, since the first motor is perpendicular to the second motor, and the commutation and motor speed are adjustable through the commutation component, the torque is increased and the torque output in a variable space is achieved. In addition, since the second motor and the first motor have relatively small structures, and the first motor is perpendicular to the second motor, the space occupied by the food processor drive device can be small, and finally the food processor main unit is small in size and easy to store.

[0009] In some embodiments, the first motor is a brushed DC motor, and the second motor is a series-excited motor.

[0010] As configured above, the cost of the brushed DC motor and the series-excited motor is relatively low, and thus, the combination of the brushed DC motor and the series-excited motor makes the cost of the driving device for the food processor relatively low.

[0011] In some embodiments, the reversing wheel and the output shaft of the reduction assembly are integrally formed by injection molding.

[0012] As set up above, since the reversing wheel and the output shaft of the reduction assembly are integrally injection-molded, the structure is simple and the concentricity of the output shaft of the reduction assembly can be ensured, thereby reducing noise and the like.

[0013] In some embodiments, the second motor includes a second motor rotor, and the second motor shaft is integrally extended from the second motor rotor.

[0014] As set up above, since the second motor shaft is integrally extended from the second motor rotor, the second motor shaft is an axis. In this way, this axis is rotatably connected to the top bearing and the bottom bearing, which can better ensure the concentricity of the second motor shaft, thereby reducing noise, etc.

[0015] In some embodiments, the reduction assembly includes a reduction assembly upper shell and a reversing assembly, the reversing assembly includes a reversing wheel connected to the first motor and the reduction assembly output shaft connected to the reversing wheel. The second motor includes a second motor upper bracket, the second motor upper bracket is fixedly assembled with the reduction assembly upper shell to form an accommodating cavity for accommodating the reversing wheel. The reduction assembly output shaft extends out of the accommodating cavity.

[0016] As set up above, since the second motor upper bracket is fixedly assembled with the reduction assembly upper shell to form a accommodating cavity for accommodating the reversing assembly, a part of the second motor upper bracket serves as the bottom of the accommodating cavity, thereby ensuring the installation strength while also saving the axial space of the food processor drive device along the second motor shaft.

[0017] In some embodiments, the second motor includes a second motor rotor and a second motor mounting bearing; the second motor upper bracket is integrally constructed, including an upper cover that forms the accommodating cavity with the upper shell of the reduction assembly and a rotor cavity that accommodates at least part of the second motor rotor; the upper cover includes an upper cover bearing chamber that is connected to the rotor cavity; the second motor mounting bearing is fixed to the upper cover bearing chamber and is rotatably connected to the second motor rotor.

[0018] As set up above, the second motor rotor is rotatably connected to the second motor mounting bearing, the second motor mounting bearing is fixed to the bearing chamber of the upper cover, and the upper cover serves as the bottom of the reduction assembly, and the second motor shaft passes through the reduction assembly. In this way, the second motor rotor is not easy to swing, and the concentricity of the second motor shaft is high, thereby reducing noise, etc.

[0019] In some embodiments, the reduction assembly output shaft is rotatably connected to the second motor mounting bearing, the reduction assembly includes a reduction assembly bearing fixed to the reduction assembly upper shell, the reduction assembly bearing and the second motor mounting bearing are distributed axially along the reduction assembly output shaft; the reduction assembly output shaft is rotatably connected to the reduction assembly bearing.

[0020] As configured above, since the reduction assembly bearing and the second motor mounting bearing are distributed along the axial direction of the reduction assembly output shaft, and the reduction assembly bearing is mounted on the reduction assembly upper shell, and the second motor mounting bearing is mounted on the second motor upper bracket (a part of the reduction assembly), the concentricity of the reduction assembly output shaft is good, the noise of the food processor drive device is low, etc.

[0021] In a second aspect, the embodiments of the present application disclose a main machine for a food processor. The main machine for a food processor comprises any of the aforementioned food processor driving devices and a main machine housing, wherein the main machine housing comprises an installation cavity; the food processor driving device is located in the installation cavity; the reduction assembly is fixedly assembled with the top of the main machine housing; and the second motor is fixedly assembled with the main machine housing.

[0022] As set up above, after the food processor driving device is hoisted on the top of the main housing and is located in the installation cavity, the second motor is also fixedly assembled with the main housing. In this way, the food processor driving device is not easy to shake in the installation cavity, etc., ensuring the concentricity of the output shaft of the reduction assembly or the concentricity of the excitation motor shaft, and the food processor main body has low noise, etc.

[0023] In some embodiments, one of the main housing and the second motor is provided with a mounting column; the food processor main unit includes a locking piece, and the locking piece is passed through the other of the main housing and the second motor and locked with the mounting column to achieve the fixed assembly.

[0024] As configured above, since the locking member is passed through the main housing and the other of the second motor and is locked with the mounting column, and combined with the top hanging of the food processor driving device and the main housing 20, the second motor and even the food processor driving device are less likely to shake, etc., and the concentricity of the output shaft of the reduction assembly or the concentricity of the excitation motor shaft can be better ensured, and the noise of the food processor main body is low, etc.

[0025] In some embodiments, the main housing is provided with an air inlet and an air outlet connected to the installation cavity; the food processor main body includes a wind hood and a fan, the wind hood is located in the installation cavity and connected to the bottom wall of the installation cavity, and forms an air duct connecting the air inlet and the air outlet with the main housing; the second motor is partially located in the wind hood, and the fan is assembled on the second motor shaft and located between the second motor and the air outlet.

[0026] As described above, since the fan is arranged on the shaft of the second motor, and an air duct is formed with the main body shell through the wind cover, the second motor is partially located in the wind cover. Under the action of the fan, the heat of the second motor is dissipated, and in some cases, the heat of the first motor can also be dissipated, so that there is no need to set up an additional heat dissipation structure, and the structure of the main body of the food processor is simple. In addition, the wind cover is located in the installation cavity and connected to the bottom wall of the installation cavity, so that the main body of the food processor has a compact base space and a low height.

[0027] In a third aspect, the embodiments of the present application disclose a food processor, which includes a first knife assembly, a second knife assembly, and any of the aforementioned food processor mainframes, wherein the first knife assembly and the second knife assembly are selectively used; the first knife assembly is connected to the output shaft of the reduction assembly, and the second knife assembly is connected to the second motor shaft.

[0028] As configured above, the food processor at least has the beneficial effects of the food processor host, which will not be described in detail.

[0029] In some embodiments, the food processor includes a power cord, a first switch, a second switch, a current conversion component for converting AC power into DC power, a first stirring cup assembly including the first blade assembly, a second stirring cup assembly including the second blade assembly, and a control panel. The power cord, the first switch, the current conversion component, and the first motor are connected in series, and the power cord, the second switch, and the second motor are connected in series. The first stirring cup assembly and the second stirring cup assembly are selectively used, and an identification mechanism is respectively provided between the first stirring cup assembly and the food processor host; the control panel is connected to the identification mechanism, and is connected to the first switch and the second switch.

[0030] As set up above, by combining the first motor and the second motor, and then combining the first switch, the second switch and the control board, it is only necessary to control the opening or closing of the first switch or the second switch according to the identification structure of the identification mechanism. The control scheme is simple and meets the low-cost, multi-functional and multi-scenario home use needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a top view of a main unit for a food processor according to an embodiment of the present application;

[0032] Figure 2 is a cross-sectional view of a main unit for a food processor according to an embodiment of the present application, and only components related to the present application are shown;

[0033] Figure 3 It is an exploded view of the main unit for a food processor and components related to the present application according to an embodiment of the present application, and only components related to the present application are shown;

[0034] Figure 4 is a schematic diagram showing a main machine for a food processor at another angle according to an embodiment of the present application;

[0035] Figure 5 yes Figure 4 A cross-sectional view of a main unit for a food processor;

[0036] Figure 6 yes Figure 5 A magnified view of part A;

[0037] Figure 7 This is an exploded view of the main unit for a food processor, omitting the fan;

[0038] Figure 8 It is a cross-sectional view of the output shaft of the reduction assembly;

[0039] Fig. 9 is a schematic diagram of the upper bracket of the second motor at an angle;

[0040] Fig.10 is a cross-sectional view of the upper bracket of the second motor;

[0041] Fig.11 is a schematic diagram of a food processor according to an embodiment of the present application;

[0042] Fig.12 It is a schematic diagram of the control principle of a food processor according to an embodiment of the present application. DETAILED DESCRIPTION

[0043] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0044] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantitative limit, but indicate that there is at least one. "Multiple" or "several" means two or more. Unless otherwise specified, words such as "front", "rear", "lower" and / or "upper" are only for the convenience of explanation and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. The singular forms "a", "said" and "the" used in this specification and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0045] See also Figure 5 , Figure 6 and Figure 7 Combined with Figure 2 , Figure 3 and Figure 4 , an embodiment of the present application discloses a driving device 10 for a food processor. The driving device 10 for a food processor includes a first motor 1, a second motor 2 and a reduction assembly 3. The reduction assembly 3 is assembled with the first motor 1, and includes a reduction assembly output shaft 31. The reduction assembly 3 reduces the speed output by the first motor 1 to output a first rotational speed of the driving device for a food processor through the reduction assembly output shaft 31. In this embodiment, the reduction assembly output shaft 31 is connected to a first lower clutch, and the first blending cup assembly 900 includes a first knife assembly 901 and a first upper clutch connected to the first knife assembly 901. When the first blending cup assembly 900 is used, the first upper clutch is connected to the first lower clutch, so that the first knife assembly 901 rotates at a first rotational speed.

[0046] Combination Figure 8 The output shaft 31 of the reduction assembly includes a through hole 311. Figure 5 , Figure 6 , Figure 7 and Figure 8 The food processor driving device includes a top bearing 41 and a bottom bearing 42 fixed at both ends of the through hole 311. The fixing method is not limited. In the embodiment of the present application, see Figure 8 The output shaft 31 of the reduction assembly is provided with a top bearing chamber 312 and a bottom bearing chamber 313 which are connected to the through hole 311. Figure 6 Combined with Figure 5 The top bearing 41 and the bottom bearing 42 are respectively fixed to the top bearing chamber 312 and the bottom bearing chamber 313. The top bearing 41 and the bottom bearing 42 are not limited, for example, the top bearing 41 and the bottom bearing 42 are respectively ball bearings.

[0047] See also Figure 5 , Figure 6 and Figure 7 Combined with Figure 2 , Figure 3 and Figure 4 , the second motor 2 is assembled with the reduction assembly 3, and includes a second motor shaft 21. The second motor shaft 21 is rotatably connected with the top bearing 41 and the bottom bearing 42, so as to be coaxially arranged with the reduction assembly output shaft 31, and output the second speed of the food processor driving device. It can also be understood that the second speed is the actual speed of the second motor 2. In this embodiment, the second motor shaft 21 has only one section, and in other embodiments, it can also be formed by connecting two sections. The second motor shaft 21 is connected with a second lower clutch, and the second mixing cup assembly includes a second knife assembly and a second upper clutch connected to the second knife assembly. When the second mixing cup assembly is used, the second upper clutch is connected with the second lower clutch, so that the second knife assembly rotates at a second speed. The second speed is not equal to the first speed, for example, the first speed ≤ 200rpm, 10000rpm ≤ second speed ≤ 30000rpm.

[0048] As described above, since the food processor driving device includes the first motor 1 and the second motor 2, the combination cost of the first motor 1 and the second motor 2 is low, for example, the cost is lower than that of the reluctance motor, and the first motor and the second motor are respectively controlled by the switch to obtain two speeds, the control scheme is simple, and the food processor driving device can output two speeds, realizing low-cost, multi-functional, and multi-scenario household use requirements. In particular, the second motor shaft 21 of the second motor 2 outputs the second speed, and the second speed is high, which can well realize the wall breaking function, for example, in the scene of making soy milk or dry grinding, it can make the food more delicate. On the other hand, the top bearing 41 and the bottom bearing 42 are fixed at both ends of the through hole 311, and the second motor shaft 21 is connected to the top bearing 41 and the bottom bearing 42 in transmission, so that the coaxial output is realized through a simple and compact structure, and the two places on the axial direction of the second motor shaft 21 are limited by the top bearing 41 and the bottom bearing 42, and the dual-speed coaxial output is realized through a simple and compact structure, and the concentricity of the second motor shaft 21 is improved, so that the noise can be reduced, and the second motor shaft 21 is not easy to swing, etc.

[0049] See also Figure 5 , Figure 6 and Figure 7 Combined with Figure 2 , Figure 3 and Figure 4 The first motor 1 is perpendicular to the second motor 2. The deceleration component 3 includes a reversing component, combined with Figure 8 , the reversing assembly includes a reversing wheel 32 and the output shaft 31 of the reduction assembly. The reversing wheel 32 is, for example, a worm wheel, a bevel gear or a bevel gear, and the output shaft 31 of the reduction assembly is a worm, etc. In short, one function of the reversing assembly is to reverse the output of the first motor 1, and finally realize the coaxial output of the output shaft 31 of the reduction assembly and the second motor shaft 21. The reversing wheel 32 is meshed with the first motor shaft of the first motor. The output shaft 31 of the reduction assembly is connected to the reversing wheel 32.

[0050] As described above, since the first motor 1 is perpendicular to the second motor 2, and the commutation and motor speed are adjustable through the commutation component, the torque is increased and the torque output in a variable space is achieved. In addition, since the second motor 2 and the first motor 1 are relatively small in structure, and the first motor 1 is perpendicular to the second motor 2, the space occupied by the food processor drive device can be small, and finally the food processor main unit is small in size and easy to store. For example, the width of the food processor main unit is less than 260 mm and the height is less than 150 mm.

[0051] In some embodiments, the first motor 1 is a brushed DC motor, and the second motor 2 is a series-excited motor.

[0052] As configured above, the cost of the brushed DC motor and the series-excited motor is relatively low, and thus, the combination of the brushed DC motor and the series-excited motor makes the cost of the driving device for the food processor relatively low.

[0053] See also Figure 8 Combined with Figure 7 and Figure 6 The reversing wheel 32 and the output shaft 31 of the reduction assembly are integrally formed by injection molding.

[0054] As described above, since the reversing wheel 32 and the output shaft 31 of the reduction assembly are integrally injection-molded, the structure is simple and the concentricity of the output shaft 31 of the reduction assembly can be ensured, thereby reducing noise and the like.

[0055] See also Figure 5 and Figure 7 Combined with Figure 4 , the second motor 2 includes a second motor rotor 22. The second motor shaft 21 is integrally extended from the second motor rotor 22, that is, the second motor shaft 21 is a complete shaft, rather than being connected by several sections. Of course, the second motor shaft 21 can also be connected by several sections. In this case, the two ends of the last shaft can be rotatably connected to the top bearing 41 and the bottom bearing 42, or one section of the shaft can be rotatably connected to the top bearing 41, and the other section of the shaft can be rotatably connected to the bottom bearing 42.

[0056] As configured above, since the second motor shaft 21 is integrally extended from the second motor rotor, the second motor shaft 21 is an axis. Thus, the axis is rotationally connected to the top bearing 41 and the bottom bearing 42, which can better ensure the concentricity of the second motor shaft 21, thereby reducing noise, etc.

[0057] See also Figure 5 and Figure 6 Combined with Figure 7 and Fig.10 The deceleration assembly 3 includes a deceleration assembly upper shell 33 and a reversing assembly. The reversing assembly includes a reversing wheel 32 connected to the first motor 1 and the deceleration assembly output shaft 31 connected to the reversing wheel 32. The second motor 2 includes a second motor upper bracket 23. The second motor upper bracket 23 is fixedly assembled with the deceleration assembly upper shell 33 to form a receiving cavity 34 for receiving the reversing wheel 32. The deceleration assembly output shaft 31 extends out of the receiving cavity 34. There are various structures for how to fix and assemble. Fig. 9The second motor upper bracket 23 is provided with a speed reduction assembly screw hole 230. The screw passes through the speed reduction assembly screw hole 230 and is fixed to the speed reduction assembly upper shell 33, thereby achieving the fixed assembly of the speed reduction assembly upper shell 33 and the second motor upper bracket 23.

[0058] As set up above, since the second motor upper bracket 23 is fixedly assembled with the reduction assembly upper shell 33 to form a accommodating cavity 34 for accommodating the reversing assembly, a portion of the second motor upper bracket 23 serves as the bottom of the accommodating cavity, thereby ensuring the installation strength while also saving the axial space of the food processor drive device along the second motor shaft 21. For example, the axial height of the food processor drive device is less than 130 mm, so that the food processor drive device has a low height.

[0059] See also Figure 5 , Figure 6 and Figure 7 The second motor 2 includes a second motor rotor 22 and a second motor mounting bearing 43. Fig.10 The second motor upper bracket 23 is integrally constructed, including an upper cover 231 that encloses the accommodating cavity 34 with the reduction assembly upper shell 33 and a rotor cavity 232 that accommodates at least part of the second motor rotor 22. The upper cover 231 includes an upper cover bearing chamber 2311 that is connected to the rotor cavity 232. Figure 5 and Figure 6 The second motor mounting bearing 43 is fixed to the upper cover bearing chamber 2311 and is rotatably connected to the second motor rotor 22. Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 , the second motor 2 also includes a second motor stator 25 and a second motor carbon brush holder 26. The second motor carbon brush holder 26 is assembled with the second motor upper bracket 23, and the second motor stator 25 can at least be clamped and fixed by the second motor upper bracket 23 and the second motor carbon brush holder 26. Based on the above configuration, because the second motor rotor 22 is rotatably connected to the second motor upper bracket 23 through the second motor mounting bearing 43, when the second motor 2 is powered on, the second motor rotor 22 will rotate relative to the second motor upper bracket 23, and then drive the second motor shaft 21 to rotate and output the second speed. Of course, other structures can also be used to achieve the output of the second speed, not limited to the above assembly method.

[0060] As described above, the second motor rotor 22 is rotatably connected to the second motor mounting bearing 43, and the second motor mounting bearing 43 is fixed to the bearing chamber 2311 of the upper cover 231. The upper cover 231 serves as the bottom of the reduction assembly 3, and the second motor shaft 21 passes through the reduction assembly 3. In this way, the second motor rotor 22 is not easy to swing, and the concentricity of the second motor shaft 21 is high, thereby reducing noise, etc.

[0061] See also Figure 5 and Figure 6 , the reduction assembly output shaft 31 is rotationally connected with the second motor mounting bearing 43. There is no limit to how to achieve the rotational connection. For example, the second motor mounting bearing 43 and the bottom end bearing 42 are both ball bearings, the second motor shaft 21 is fixedly connected with the inner ring of the bottom end bearing 42, the reduction assembly output shaft 31 is fixed with the outer ring of the bottom end bearing 42 and the inner ring of the second motor mounting bearing 43, and the outer ring of the second motor mounting bearing 43 is connected with the upper cover bearing chamber 2311. The reduction assembly 3 includes a reduction assembly bearing 35 fixed to the reduction assembly upper shell 33. The reduction assembly bearing 35 and the second motor mounting bearing 43 are distributed along the axial direction of the reduction assembly output shaft 31. The reduction assembly output shaft 31 is rotationally connected with the reduction assembly bearing 35.

[0062] Based on the above structure, when the second motor 2 is working, the second motor rotor 22 and the second motor shaft 21 rotate together relative to the second motor mounting bearing 43, the top bearing 41 and the bottom bearing 42 to output the second speed. When the first motor 1 is working, the reduction assembly output shaft 31 of the reduction assembly 3 rotates relative to the second motor shaft 21 and the reduction assembly bearing 35 to output the first speed. Of course, when both the first motor 1 and the second motor 2 are working, they each still work according to the aforementioned transmission relationship.

[0063] As configured above, since the reduction assembly bearing 35 and the second motor mounting bearing 43 are distributed along the axial direction of the reduction assembly output shaft 31, and the reduction assembly bearing 35 is mounted on the reduction assembly upper shell 33, and the second motor mounting bearing 43 is mounted on the second motor upper bracket 23 (a part of the reduction assembly), the concentricity of the reduction assembly output shaft 31 is good, the noise of the food processor drive device is low, and the like.

[0064] Second, see Figure 3 , Figure 2 and Figure 1The embodiment of the present application discloses a main machine 100 for a food processor. The main machine 100 for a food processor includes any of the aforementioned food processor driving devices 10 and a main machine housing 20, and the main machine housing 20 includes a mounting cavity 201. There is no limitation on how to form the mounting cavity 201. In the embodiment of the present application, the main machine housing 20 includes a main machine upper shell 202 and a main machine lower shell 203. The main machine upper shell 202 and the main machine lower shell 203 are assembled to enclose the mounting cavity 201. Figure 2 As shown, the food processor driving device 10 is located in the installation cavity 201. The speed reduction assembly 3 is fixedly assembled with the top of the host housing 20 (the top of the host upper shell 202), and the structure for achieving fixed assembly is not limited. In this embodiment, Figure 1 As shown, a plurality of fixing holes 204 are provided on the top of the main housing 20 (four fixing holes 204 are shown schematically in the figure). The reduction assembly upper shell 33 of the reduction assembly 3 is also provided with screw holes or studs. The bolts pass through the fixing holes 204 and are fixedly connected with the screw holes or studs on the reduction assembly upper shell 33 of the reduction assembly 3, so that the reduction assembly 3 is fixedly connected to the main housing 20. The first motor 1 is fixedly assembled with the reduction assembly 3, for example, fixed assembly can also be achieved by structures such as bolts, and then assembled with the reduction assembly 3 in combination with the aforementioned second motor 2, so that the food processor drive device is hoisted on the main housing 20 and is located in the installation cavity 201. In addition, the second motor 2 is fixedly assembled with the main housing 20, and how to fix and assemble is not limited to the structure described later.

[0065] As configured above, after the food processor driving device 10 is hoisted on the top of the main housing 20 and positioned in the installation cavity 201, the second motor 2 is also fixedly assembled with the main housing 20. In this way, the food processor driving device 10 is not easy to shake in the installation cavity 201, etc., thereby ensuring the concentricity of the reduction assembly output shaft 31 or the concentricity of the excitation motor shaft 21, and the food processor main body has low noise, etc.

[0066] The following describes the structure of fixing the main housing 20 and the second motor 2 in the present application.

[0067] See also Figure 2 and Fig. 9 , the main housing 20 is provided with a mounting post 205. The second motor 2 is provided with a locking hole 233. In some embodiments, the main housing 20 may be provided with the locking hole 233, and the second motor 2 may be provided with the mounting post 205. Figure 2 As shown, the mounting posts 205 are parallel to the second motor shaft 21 of the second motor 2 and are evenly distributed along the circumference of the second motor 2. Fig. 9Two locking holes 233 are shown, which are located on the diagonal line of the second motor upper bracket 23. The number of locking holes 233 may also be three, four, etc. Of course, the mounting column 205 is not limited to the manner of being parallel to the second motor shaft 21 as described above. The main machine for the food processor includes a locking member (not shown in the figure), but according to Figure 2 As shown, the technicians can understand that the locking member is provided in the other of the main housing 20 and the second motor 2 and is locked with the mounting column 205 to achieve the fixed assembly. In the embodiment of the present application, the locking member passes through the locking hole 233 and is locked with the mounting column 205.

[0068] As configured above, since the locking member is passed through the main housing and the other of the second motor and is locked with the mounting column 205, and combined with the top hanging of the food processor driving device and the main housing 20, the second motor 2 and even the food processor driving device 10 are less likely to shake, etc., and the concentricity of the reduction assembly output shaft 31 or the concentricity of the series motor shaft 21 can be better ensured, and the food processor main body has low noise, etc.

[0069] See also Figure 2 , the main body shell 20 is provided with an air inlet 206 and an air outlet 207 connected to the installation cavity 201. In the embodiment of the present application, the second motor 2 is vertically oriented, and therefore, the air outlet 207 vertically penetrates and connects the installation cavity 201 and the outside of the main body of the food processor. The main body 100 of the food processor includes a hood 30 and a fan 40. The hood 30 is located in the installation cavity 201 and is connected to the bottom wall of the installation cavity 201, and forms an air duct connecting the air inlet 206 and the air outlet 207 with the main body shell 20. The second motor 2 is partially located in the hood 30. The fan 40 is assembled on the second motor shaft 21 and is located between the second motor 2 and the air outlet 207. When the fan 40 is working, wind enters from the outside of the main body 100 of the food processor through the air inlet 206, and is discharged from the air outlet 207 after passing through the air duct. The direction of the wind is as follows: Figure 2 Indicated by the black arrow.

[0070] As described above, since the fan 40 is provided on the second motor shaft 21, the second motor 2 is partially located in the wind hood 30, and an air duct is formed through the wind hood 30 and the main body housing 20. Under the action of the fan, the second motor 2 is cooled, and in some cases, the first motor 1 can also be cooled. Therefore, there is no need to set up an additional heat dissipation structure, and the structure of the food processor main body is simple. In addition, the wind hood 30 is located in the installation cavity 201 and connected to the bottom wall of the installation cavity 201. Therefore, the food processor main body has a compact base space and a low height.

[0071] In a third aspect, an embodiment of the present application discloses a food processor. The food processor includes a first knife assembly, a second knife assembly, and any one of the aforementioned food processor main units 100, wherein the first knife assembly and the second knife assembly are selectively used; the first knife assembly is connected to the output shaft of the reduction assembly, and the second knife assembly is connected to the second motor shaft. In this embodiment, the food processor may have only one blending cup, and the first knife assembly and the second knife assembly are detachably assembled. Of course, it may also include a first blending cup assembly and a second blending cup assembly as described later, and for the first blending cup assembly, the first knife assembly may be detachable or non-detachable; for the second blending cup assembly, the second knife assembly may be detachable or non-detachable.

[0072] See also Fig.12 Combined with Fig.11 In the embodiment of the present application, the first motor 1 is a brushed DC motor, and the food processor includes a power cord 99, a first switch 98, a second switch 97, a current conversion component 96 for converting AC power into DC power, a first blending cup assembly including the first blade assembly, a second blending cup assembly including the second blade assembly, and a control board 95. Fig.11 Only the first stirring cup assembly 200 is shown, but the technician can understand the structure of the second stirring cup assembly, which will not be described in detail. The power cord 99, the first switch 98, the current conversion component 96 and the first motor 1 (i.e., a brushed DC motor) are connected in series. The power cord 99, the second switch 97 and the second motor 2 are connected in series. The first stirring cup assembly and the second stirring cup assembly are selected for use, and an identification mechanism is respectively provided between the main machine for the food processor. The control board is connected to the identification mechanism. The identification mechanism is not limited, and its main function is to identify whether the first stirring cup assembly or the second stirring cup assembly is used at this time. For example, it can be judged by the resistance value. When the first stirring cup assembly is used, the first resistance value is generated, and when the second stirring cup assembly is used, the second resistance value is generated. The control board 95 can determine whether the first stirring cup assembly or the second stirring cup assembly is currently used according to the first resistance value or the second resistance value. The control board is connected to the first switch and the second switch. When the control board determines that the first blending cup assembly is currently being used, the first switch 98 is controlled to be closed, so that the first motor (i.e., the first motor 1) works and outputs a first speed. When the control board determines that the second blending cup assembly is currently being used, the second switch 97 is controlled to be closed, so that the second motor 2 works and outputs a second speed.

[0073] As set up above, through the combination of a brushed DC motor and the second motor 2, combined with the first switch, the second switch and the control board, it is only necessary to control the opening or closing of the first switch 98 or the second switch 97 according to the identification structure of the identification mechanism. The control scheme is simple and meets the low-cost, multi-functional and multi-scenario home use needs.

[0074] The above description is only a preferred implementation mode of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A driving device for a food processor, characterized in that: The driving device for a food processor comprises a first motor (1), a second motor (2) and a reduction assembly (3), wherein: The reduction assembly (3) is assembled with the first motor (1), and comprises a reduction assembly output shaft (31); the reduction assembly (3) reduces the speed outputted by the first motor (1), so as to output a first rotational speed of the food processor driving device through the reduction assembly output shaft (31); The output shaft (31) of the reduction assembly includes a through hole (311); the food processor driving device includes a top bearing (41) and a bottom bearing (42) fixed at both ends of the through hole (311); the second motor (2) is assembled with the reduction assembly (3) and includes a second motor shaft (21); the second motor shaft (21) is rotatably connected to the top bearing (41) and the bottom bearing (42) so as to be coaxially arranged with the output shaft (31) of the reduction assembly to output a second rotational speed of the food processor driving device.

2. The driving device for a food processor according to claim 1, characterized in that: The first motor (1) is perpendicular to the second motor (2); the reduction assembly (3) comprises a reversing assembly, the reversing assembly comprises a reversing wheel (32) and the reduction assembly output shaft (31), the reversing wheel (32) is meshed with the first motor shaft of the first motor (1), and is connected to the reduction assembly output shaft (31); And / or, the first motor (1) is a brushed DC motor, and the second motor (2) is a series-excited motor.

3. The driving device for a food processor according to claim 2, characterized in that: The reversing wheel (32) and the output shaft (31) of the speed reduction assembly are integrally formed by injection molding.

4. The driving device for a food processor according to claim 1, characterized in that: The second motor (2) comprises a second motor rotor (22), and the second motor shaft (21) is integrally extended from the second motor rotor (22).

5. The driving device for a food processor according to claim 1, characterized in that: The reduction assembly (3) comprises a reduction assembly upper shell (33) and a reversing assembly, wherein the reversing assembly comprises a reversing wheel (32) connected to the first motor (1) and an output shaft (31) of the reduction assembly connected to the reversing wheel (32); The second motor (2) comprises a second motor upper bracket (23), the second motor upper bracket (23) being fixedly assembled with the reduction assembly upper shell (33) to form a receiving cavity (34) for receiving the reversing wheel (32), and the reduction assembly output shaft (31) extending out of the receiving cavity (34).

6. The driving device for a food processor according to claim 5, characterized in that: The second motor (2) comprises a second motor rotor (22) and a second motor mounting bearing (43); the second motor upper bracket (23) is integrally constructed, comprising an upper cover (231) which encloses the accommodating cavity (34) with the reduction assembly upper shell (33) and a rotor cavity (232) which accommodates at least part of the second motor rotor (22); the upper cover (231) comprises an upper cover bearing chamber (2311) which is in communication with the rotor cavity (232); the second motor mounting bearing (43) is fixed to the upper cover bearing chamber (2311) and is rotatably connected to the second motor rotor (22); And / or, the reduction assembly output shaft (31) is rotationally connected to the second motor mounting bearing (43), the reduction assembly (3) includes a reduction assembly bearing (35) fixed to the reduction assembly upper shell (33), the reduction assembly bearing (35) and the second motor mounting bearing (43) are distributed along the axial direction of the reduction assembly output shaft (31); the reduction assembly output shaft (31) is rotationally connected to the reduction assembly bearing (35).

7. A main machine for a food processor, characterized in that: The main machine for a food processor comprises a food processor driving device (10) according to any one of claims 1 to 6 and a main machine housing (20), wherein the main machine housing (20) comprises a mounting cavity (201); the food processor driving device (10) is located in the mounting cavity (201); the reduction assembly (3) is fixedly assembled with the top of the main machine housing (20); and the second motor (2) is fixedly assembled with the main machine housing (20).

8. The main machine for a food processor according to claim 7, characterized in that: One of the main machine housing (20) and the second motor (2) is provided with a mounting post (205), and the main machine (100) for a food processor comprises a locking member, the locking member being provided through the other of the main machine housing (20) and the second motor (2) and being locked with the mounting post (205) to achieve the fixed assembly; And / or, the main housing (20) is provided with an air inlet (206) and an air outlet (207) connected to the installation cavity (201); the main housing (100) for the food processor comprises a wind hood (30) and a fan (40), wherein the wind hood (30) is located in the installation cavity (201) and is connected to the bottom wall of the installation cavity (201), and forms an air duct connecting the air inlet (206) and the air outlet (207) with the main housing (20); the second motor (2) is partially located in the wind hood (30), and the fan (40) is assembled on the second motor shaft (21) and is located between the second motor (2) and the air outlet (207).

9. A food processor, characterized in that: The food processor comprises a first knife assembly, a second knife assembly and a food processor main unit (100) as described in any one of claims 7 to 8, wherein the first knife assembly and the second knife assembly are selectively used; the first knife assembly is connected to the output shaft (31) of the reduction assembly, and the second knife assembly is connected to the second motor shaft (21).

10. The food processor according to claim 9, characterized in that: The food processor comprises a power cord (99), a first switch (98), a second switch (97), a current conversion component (96) for converting alternating current into direct current, a first blending cup assembly comprising the first blade assembly, a second blending cup assembly comprising the second blade assembly, and a control panel (95); The power line (99), the first switch (98), the current conversion component (96) and the first motor (1) are connected in series, and the power line (99), the second switch (97) and the second motor (2) are connected in series; The first stirring cup assembly and the second stirring cup assembly are selectively used, and are respectively provided with identification mechanisms between the first stirring cup assembly and the main machine for the food processor; the control panel (95) is connected to the identification mechanisms, and is connected to the first switch (98) and the second switch (97).

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