A multi-functional cooking machine

Abstract

This application relates to a multifunctional cooking machine, which includes a base housing provided with a receiving cavity, an air inlet channel, and an air outlet channel. Both the air inlet channel and the air outlet channel are connected to the receiving cavity, and the ends of the air inlet channel and the air outlet channel away from the receiving cavity communicate with the bottom edge of the base housing to form a lifting and holding notch; a driving assembly is arranged in the receiving cavity, the driving assembly is provided with two output ends, and one of the output ends is used to connect to the cutter head assembly; a wind blade is connected to the other output end of the driving assembly and is used to allow air to pass through the air inlet channel, the receiving cavity, and the air outlet channel in sequence. This application has the effect of improving the heat dissipation efficiency of the multifunctional cooking machine and thus extending the service life of the multifunctional cooking machine.

Description

Technical Field

[0001] The present application relates to the field of electrical appliances, and in particular, to a multifunctional cooking machine. Background Art

[0002] A multifunctional cooking machine integrates functions such as making soymilk, grinding dry powder, squeezing juice, making minced meat, and shaving ice. It is a household electrical appliance used to make various foods such as juice, soymilk, jam, dry powder, shaved ice, and minced meat, and is a product after the diversification of juicers.

[0003] In related technologies, a multifunctional cooking machine includes a machine base, a mixing cup, a cutter head assembly, and a driving assembly. The machine base is usually placed horizontally on a table or a workbench; the mixing cup is arranged on the upper side of the machine base, and the mixing cup is used to hold the food to be processed; the cutter head assembly is arranged in the mixing cup and is used to process the food; the driving assembly is arranged in the machine base, and the driving assembly is used to rotate the cutter head assembly to process the food, so as to achieve the purpose of crushing the food by the multifunctional cooking machine. At the same time, because a large amount of heat energy is generated by the driving assembly when the multifunctional cooking machine is working, heat dissipation holes are also opened on the machine base to discharge the heat generated by the driving assembly into the external environment.

[0004] In view of the above related technologies, there is a defect that since the multifunctional cooking machine runs at a high speed for a long time in a commercial state, the heat dissipation method using heat dissipation holes has low efficiency, resulting in a reduction in the operating efficiency and lifespan of the driving motor. Summary of the Invention

[0005] In order to improve the heat dissipation efficiency of the multifunctional cooking machine, the present application provides a multifunctional cooking machine.

[0006] The multifunctional cooking machine provided by the present application adopts the following technical solutions:

[0007] A multifunctional cooking machine includes:

[0008] A machine base shell is provided with a receiving cavity, an air inlet channel, and an air outlet channel. Both the air inlet channel and the air outlet channel are communicated with the receiving cavity. The ends of the air inlet channel and the air outlet channel away from the receiving cavity are communicated to the bottom edge of the machine base shell, and are used to form a lifting and holding notch.

[0009] A driving assembly is arranged in the receiving cavity. The driving assembly is provided with two output ends, and one of the output ends is used to connect to the cutter head assembly.

[0010] An air blade is connected to the other output end of the driving assembly and is used to allow air to sequentially pass through the air inlet channel, the receiving cavity, and the air outlet channel.

[0011] By adopting the above technical solution, when the multifunctional cooking machine is working, one output end of the driving component will make the cutter head component work to process the food in the mixing cup. At the same time, the other output end of the driving component will make the fan blade rotate, so that the external air first enters the accommodating cavity through the air inlet channel, and then leaves the accommodating cavity through the air outlet channel to take away the heat generated by the driving component. Compared with the natural heat dissipation method of opening heat dissipation holes in the base shell, this design method can not only improve the heat dissipation efficiency by strengthening the air flow, but also make more full use of the kinetic energy generated by the driving component, so as to simplify the internal structure of the multifunctional cooking machine while improving the heat dissipation efficiency. In addition, the setting of the lifting and holding notch can also facilitate the handling of the multifunctional cooking machine, thus improving the practicality of the multifunctional cooking machine while maintaining a simple structure.

[0012] Preferably, a PCBA heat sink is arranged in the accommodating cavity; the connection between the air inlet channel and the accommodating cavity is divided into a first air inlet part and a second air inlet part. The first air inlet part is used to guide air to the position where the driving component is located; the second air inlet part is used to guide air to the position where the PCBA heat sink is located.

[0013] By adopting the above technical solution, since a PCBA is provided in the multifunctional cooking machine, a PCBA heat sink also needs to be provided to dissipate heat from the PCBA. Therefore, the setting of the first air inlet part and the second air inlet part can not only take away the heat for the driving component, but also take away the heat for the PCBA, thus helping to improve the overall heat dissipation efficiency of the multifunctional cooking machine.

[0014] Preferably, the driving component includes an upper motor bracket, a stator, a rotor, a motor shaft, a wind cover and a commutator. The upper motor bracket is disposed in the accommodating cavity; the stator is connected to the upper motor bracket and is configured to form a first heat dissipation air inlet portion; the rotor is disposed on the stator; the motor shaft is disposed through the rotor and is configured to form two output ends; the wind cover is connected to one end of the stator away from the upper motor bracket and is configured to form a second heat dissipation air inlet portion and a heat dissipation air outlet portion. The second heat dissipation air inlet portion is located at a position where the wind cover is close to the stator, and the heat dissipation air outlet portion is located at a position where the wind cover is away from the stator; the commutator is disposed at a position of the motor shaft away from the upper motor bracket, and the commutator is located inside the wind cover; an air guiding retaining wall is disposed in the accommodating cavity. The upper portion of the air guiding retaining wall is close to the connection between the air inlet passage and the accommodating cavity, and the lower portion of the air guiding retaining wall is close to the connection between the air outlet passage and the accommodating cavity, and is configured to form a first heat dissipation path and a second heat dissipation path for air in the accommodating cavity. The first heat dissipation path sequentially passes through the first heat dissipation air inlet portion, the rotor, the commutator and the heat dissipation air outlet portion, and the second heat dissipation path sequentially passes through the second heat dissipation air inlet portion, the commutator and the heat dissipation air outlet portion.

[0015] By adopting the above technical solution, since the heat generation of the motor mainly comes from the resistance heat and electromagnetic reaction heat on the rotor, as well as the resistance heat on the commutator, the upper motor bracket, the wind cover and the air guiding retaining wall are provided, so that after the air enters the accommodating cavity from the air inlet passage, it will be divided into two parts of air flow moving in the form of the first heat dissipation path and the second heat dissipation path. The first heat dissipation path enters the rotor from the first heat dissipation air inlet portion, then passes through the rotor to reach the commutator, and then reaches the position of the heat dissipation air outlet portion. The second heat dissipation path enters the inside of the wind cover from the second heat dissipation air inlet portion, then passes through the commutator to reach the heat dissipation air outlet portion, and then converges with the air of the first heat dissipation path and is discharged from the air outlet passage together. Compared with the method without the upper motor bracket, the wind cover and the air guiding retaining wall, in this design method, after the air enters the accommodating cavity, it can move from the top of the motor to the bottom, so as to more fully take away the heat of the motor, which helps to improve the heat dissipation efficiency of the multifunctional cooking machine, and further, the service life of the multifunctional cooking machine is not easily reduced under the continuous working state.

[0016] Preferably, the wind blade is a centrifugal wind blade, and the connection between the air outlet passage and the accommodating cavity is disposed on the air guiding retaining wall; a partition retaining wall is further disposed in the accommodating cavity, and the partition retaining wall is located between the inner side of the air guiding retaining wall and the outer side of the wind blade and is configured to separate the heat dissipation air outlet portion from the second heat dissipation air inlet portion.

[0017] By adopting the above technical solution, on the one hand, since the wind blade is a centrifugal wind blade, the air will leave the wind blade in the horizontal direction and enter the connection between the air outlet channel and the accommodating cavity, thereby reducing the noise generated during the heat dissipation process. On the other hand, because the moving direction of the air leaving the wind blade is horizontal, the setting of the partition wall can prevent the air leaving the wind blade from communicating with the air entering the second heat dissipation air inlet part, thereby weakening the heat dissipation effect on the commutator, and thus maintaining the heat dissipation efficiency of the multifunctional cooking machine.

[0018] Preferably, the partition wall is divided into an installation wall and a sound insulation cotton. There are two installation walls arranged at intervals, and the sound insulation cotton is arranged at the interval. A contact notch communicating with the sound insulation cotton is arranged on the installation wall close to the wind blade.

[0019] By adopting the above technical solution, the setting of the sound insulation cotton, on the one hand, can achieve the purpose of separating the heat dissipation air outlet part and the second heat dissipation air inlet part; on the other hand, the noise of the air leaving the wind blade will also decrease after hitting the sound insulation cotton, thereby further reducing the noise when the multifunctional cooking machine is working.

[0020] Preferably, the air outlet channel includes an air outlet window, a receiving buffer area and an extending buffer area. The air outlet window is arranged on the air guiding wall; the receiving buffer area is communicated with the air outlet window; the extending buffer area is located below the receiving buffer area, and the direction of the air leaving the air outlet window is opposite to the direction of the air leaving the extending buffer area.

[0021] By adopting the above technical solution, compared with the way of directly discharging the air in a straight line through the air outlet channel, in this design, the path of the air in the receiving buffer area and the extending buffer area is in a U-shaped bending shape to extend the time for the air to enter the external environment. This can not only weaken the flow rate of the gas when it completely leaves the device, but also reduce the air pressure difference when the gas completely leaves the device, thereby further weakening the noise generated during the air outlet process, and thus maintaining the quietness of the multifunctional cooking machine during operation.

[0022] Preferably, a sealing pad made of an elastic material is arranged on the bottom surface of the machine base shell, and the sealing pad is used to separate one end of the air inlet channel and the air outlet channel far from the accommodating cavity.

[0023] By adopting the above technical solution, on the one hand, the stability of the multifunctional cooking machine placed on the tabletop can be improved through the setting of the sealing pad, and on the other hand, the sealing performance between one end of the air inlet channel and the air outlet channel far from the accommodating cavity can also be improved, thereby helping to improve the heat dissipation efficiency.

[0024] Preferably, there are two air inlet channels, and the two air inlet channels are symmetrically arranged with respect to the air outlet channel; a wind direction adjusting member is arranged at the connection between the air outlet channel and the accommodating cavity, and the wind direction adjusting member is used to balance the vector sum of the forces exerted on the machine base housing by the air in the two air inlet channels with the air in the air outlet channel.

[0025] By adopting the above technical solution, on the one hand, the force balance of the entire machine base housing can be maintained by the symmetric arrangement of the two air inlet channels with respect to the air outlet channel; on the other hand, the wind direction adjusting member can further adjust the force balance of the entire machine base housing, thereby reducing the amplitude of vibration deviation of the multifunctional cooking machine.

[0026] Preferably, the machine base housing includes an upper shell and a lower shell, and the upper shell is used to connect with the mixing cup; the lower shell is detachably connected to the upper shell, and the lower shell is provided with the air inlet channel and the air outlet channel.

[0027] By adopting the above technical solution, since air will flow at the air inlet channel and the air outlet channel, the lower shell is provided with the air inlet channel and the air outlet channel, so that the connection between the air inlet channel and the air outlet channel and the accommodating cavity can be cleaned.

[0028] Preferably, a blocking block is detachably arranged at the lifting and holding notch. When the multifunctional cooking machine stops, the blocking block is used to prevent insects from entering the accommodating cavity through the air inlet channel or the air outlet channel.

[0029] By adopting the above technical solution, when the multifunctional cooking machine stops working, the blocking block can be installed at the lifting and holding notch to prevent insects from entering the accommodating cavity, thereby protecting the electronic components inside the multifunctional cooking machine.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. By connecting a wind blade to one of the output ends of the driving component, when the multifunctional cooking machine is working, one of the output ends of the driving component will make the cutter head component work to process the food in the mixing cup. At the same time, the other output end of the driving component will make the wind blade rotate, so that external air first enters the accommodating cavity through the air inlet channel, and then leaves the accommodating cavity through the air outlet channel to take away the heat generated by the driving component. Compared with the natural heat dissipation method of opening a heat dissipation shell on the machine base housing, this design method can not only dissipate heat by strengthening air flow, but also make more full use of the kinetic energy generated by the driving component, thereby improving the heat dissipation efficiency while simplifying the internal structure of the multifunctional cooking machine;

[0032] 2. The arrangement that divides the connection between the air inlet channel and the accommodation cavity into a first air inlet part and a second air inlet part can not only take away heat from the drive component, but also take away heat from the PCBA, thereby helping to improve the overall heat dissipation efficiency of the multifunctional cooking machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of the multifunctional cooking machine in Embodiment 1 of the present application.

[0034] Figure 2 is a schematic diagram showing the connection between the air inlet channel and the accommodation cavity in Embodiment 1 of the present application.

[0035] Figure 3 is a schematic diagram showing the first heat dissipation path and the second heat dissipation path in Embodiment 1 of the present application.

[0036] Figure 4 is a schematic structural diagram of the multifunctional cooking machine in Embodiment 2 of the present application.

[0037] Description of the reference numerals: 1, base housing; 11, accommodation cavity; 12, air inlet channel; 121, first air inlet part; 122, second air inlet part; 13, air outlet channel; 131, air outlet window; 132, accommodation buffer area; 133, extension buffer area; 14, lifting and holding notch; 15, upper housing; 16, lower housing; 2, drive component; 21, motor upper bracket; 22, stator; 23, rotor; 24, motor shaft; 25, wind hood; 26, commutator; 27, first heat dissipation air inlet part; 28, second heat dissipation air inlet part; 29, heat dissipation air outlet part; 3, fan blade; 4, PCBA heat sink; 5, air guiding retaining wall; 51, first heat dissipation path; 52, second heat dissipation path; 6, partition retaining wall; 61, installation wall; 611, contact notch; 62, sound insulation cotton; 7, gasket; 8, air direction adjusting part; 9, stop block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] The following Figures 1-4 further describes the present application in detail.

[0039] Embodiment 1 of the present application discloses a multifunctional cooking machine.

[0040] Embodiment 1

[0041] Referring to Figure 1 and Figure 2, The multifunctional cooking machine includes a base housing 1 and a drive assembly 2. Specifically, the base housing 1 is generally in the shape of a frustum of a pyramid, and the end with a larger cross-sectional area is placed on a horizontal table or countertop. Moreover, a receiving cavity 11, an air inlet channel 12, and an air outlet channel 13 are provided inside the base housing 1. Among them, both the air inlet channel 12 and the air outlet channel 13 are connected to the receiving cavity 11, and the ends of the air inlet channel 12 and the air outlet channel 13 away from the receiving cavity 11 are both connected to the edge of the base of the base housing 1 to form a lifting and gripping notch 14 for facilitating the handling of the multifunctional cooking machine. Additionally, from the set position, the air outlet channel 13 is generally located in the middle of the base housing 1, and there are two air inlet channels 12 relative to the air outlet channel 13 to maintain the force balance of the entire multifunctional cooking machine.

[0042] Refer to Figure 1 and Figure 3 , The drive assembly 2 is arranged in the receiving cavity 11. Specifically, the drive assembly 2 has two output ends. One output end is used to connect the cutter head assembly to crush the food in the mixing cup. At the same time, the multifunctional cooking machine also includes a wind blade 3. So, the other output end of the drive assembly 2 is used to connect the wind blade 3. When the drive assembly 2 rotates the wind blade 3, air can sequentially pass through the air inlet channel 12, the receiving cavity 11, and the air outlet channel 13 to achieve the purpose of taking away the heat generated by the drive assembly 2. Therefore, compared with the natural heat dissipation method of opening heat dissipation holes, this design method can not only improve the heat dissipation efficiency by strengthening air flow but also make more full use of the kinetic energy generated by the drive assembly 2, thereby simplifying the internal structure of the multifunctional cooking machine while improving the heat dissipation efficiency.

[0043] Refer to Figure 1 and Figure 2 , Since a control module is also provided inside the multifunctional cooking machine and the control module is usually installed on the PCBA, a PCBA heat sink 4 is correspondingly arranged in the receiving cavity 11 to dissipate heat from the PCBA. Therefore, the connection between the air inlet channel 12 and the receiving cavity 11 is also divided into a first air inlet part 121 and a second air inlet part 122. The first air inlet part 121 exists on both air inlet channels 12 and is used to guide air to the position where the drive assembly 2 is located. The second air inlet part 122 exists only on one air inlet channel 12 and is used to guide air to the position where the PCBA heat sink 4 is located, so as to more fully take away the heat generated when the multifunctional cooking machine is working.

[0044] Refer to Figure 2 and Figure 3, when the multifunctional cooking machine is working, most of the heat generated by the drive assembly 2 accounts for the majority. Therefore, the specific structure of the drive assembly 2 will be described first. Specifically, the drive assembly 2 includes a motor upper bracket 21, a stator 22, a rotor 23, a motor shaft 24, a wind cover 25 and a commutator 26. The motor upper bracket 21 is fixedly installed in the accommodation cavity 11 and is located at the upper position of the accommodation cavity 11; the stator 22 is fixedly connected to the motor upper bracket 21, and a first heat dissipation air inlet part 27 is formed in the gap at the connection, and the first heat dissipation air inlet part 27 communicates with the inner cavity of the stator 22; the rotor 23 is arranged in the inner cavity of the stator 22; the motor shaft 24 is fixedly penetrated on the rotor 23, and both ends of the motor shaft 24 serve as the two output ends of the entire drive assembly 2; the wind cover 25 is fixedly connected to one end of the stator 22 away from the motor upper bracket 21, then a second heat dissipation air inlet part 28 and a heat dissipation air outlet part 29 are formed, wherein the second heat dissipation air inlet part 28 is located at the position where the wind cover 25 is close to the stator 22, and the heat dissipation air outlet part 29 is located at the position where the wind cover 25 is away from the stator 22; the commutator 26 is sleeved on the motor shaft 24 at the position away from the motor upper bracket 21, and the commutator 26 is located inside the wind cover 25. Generally speaking, the heat of the entire drive assembly 2 includes the resistance heat and electromagnetic reaction heat of the rotor 23, as well as the resistance heat of the commutator 26.

[0045] Refer to Figure 2 and Figure 3 , in order to dissipate the heat of the drive assembly 2 more fully, the following settings are corresponding. Specifically, an air guiding baffle 5 is arranged in the accommodation cavity 11. The air guiding baffle 5 is arranged around the entire drive assembly 2. The height of the air guiding block 9 is approximately at the height where the second heat dissipation air inlet part 28 is located. And the upper part of the air guiding baffle 5 is provided with the connection part of the air inlet channel 12 and the accommodation cavity 11, and the lower part of the air guiding baffle 5 is provided with the connection part of the air outlet channel 13 and the accommodation cavity 11, so as to make the air form a first heat dissipation path 51 and a second heat dissipation path 52 in the accommodation cavity 11. Among them, the first heat dissipation path 51 will sequentially pass through the first heat dissipation air inlet part 27, the rotor 23, the commutator 26 and the heat dissipation air outlet part 29, and the second heat dissipation path 52 will sequentially pass through the second heat dissipation air inlet part 28, the commutator 26 and the heat dissipation air outlet part 29, so as to achieve the purpose of fully dissipating the heat of the drive assembly 2.

[0046] Refer to Figure 2 and Figure 3, since the structure of the impeller 3 is a centrifugal impeller 3, the air will flow horizontally when leaving the impeller 3. Therefore, in order to prevent the air leaving the impeller 3 from mixing with the air entering the second heat dissipation air inlet part 28, a partition wall 6 is also provided in the accommodation cavity 11. The partition wall 6 is located between the inner side of the air guiding wall 5 and the outer side of the impeller 3, and the partition wall 6 isolates the heat dissipation air outlet part 29 from the second heat dissipation air inlet part 28 to prevent the heat dissipation effect of the commutator 26 from being weakened, thereby maintaining the heat dissipation efficiency of the multifunctional cooking machine.

[0047] Refer to Figure 2 and Figure 3 , since noise will be generated when the air enters and leaves the multifunctional cooking machine during operation, in order to reduce the noise generated by the multifunctional cooking machine, the following settings are made. First, the partition block 9 also includes a mounting wall 61 and a sound insulation cotton 62. There are two mounting walls 61 arranged at intervals, and the sound insulation cotton 62 is tightly fitted into the interval. And a contact notch 611 that connects the area where the impeller 3 is located to the sound insulation cotton 62 is integrally formed on the mounting wall 61 close to the impeller 3. Therefore, after the air leaving the impeller 3 collides with the sound insulation cotton 62, the noise will be absorbed, thereby weakening the noise of the multifunctional cooking machine.

[0048] Refer to Figure 2 and Figure 3 , second, the air outlet channel 13 also includes an air outlet window 131, an accommodation buffer area 132, and an extension buffer area 133. Specifically, the air outlet window 131 is opened on the air guiding wall 5, and the center line of the air outlet window 131 is in the horizontal direction; the accommodation buffer area 132 is communicated with the buffer window, and the surface of the accommodation buffer area 132 opposite to the air outlet window 131 is provided with an arc transition; the extension buffer area 133 is located below the accommodation buffer area 132, and the direction of the air leaving the air outlet window 131 is opposite to the direction of the air leaving the extension buffer area 133. Therefore, the air flows in a U-shaped bend in the air outlet channel 13 to extend the time for the air to enter the external environment, which can not only weaken the flow rate of the gas when it completely leaves the device, but also reduce the air pressure difference when the gas completely leaves the device, thereby further weakening the noise generated during the air outlet process.

[0049] Refer to Figure 1 , in order to reduce the mutual interference between the air inlet channel 12 and the end of the air outlet channel 13 far from the accommodation cavity 11, a sealing gasket 7 made of silica gel material is fixed on the bottom surface of the machine base shell 1. On the one hand, it can improve the stability of the machine base placed on the tabletop. On the other hand, it can also more tightly separate the end of the air inlet channel 12 and the end of the air outlet channel 13 far from the accommodation cavity 11, thereby improving the comprehensive performance of the multifunctional cooking machine.

[0050] In addition, in this embodiment, in order to facilitate the cleaning of the air inlet channel 12 and the air outlet channel 13, the base housing 1 is also divided into an upper housing 15 and a lower housing 16 that are detachably connected, and the air inlet channel 12 and the air outlet channel 13 are both arranged on the lower housing 16.

[0051] The implementation principle of Embodiment 1 of this application for a multifunctional cooking machine is as follows: When the multifunctional cooking machine is working, one output end of the driving component 2 will make the cutter head component work to process the food in the mixing cup. At the same time, the other output end of the driving component 2 will make the wind blade 3 rotate, so that external air first enters the accommodating cavity 11 through the air inlet channel 12, and then leaves the accommodating cavity 11 from the air outlet channel 13 to take away the heat generated by the driving component 2. Compared with the natural heat dissipation method of opening heat dissipation holes in the base housing 1, this design method can not only improve the heat dissipation efficiency by strengthening air flow, but also make more full use of the kinetic energy generated by the driving component 2, thereby simplifying the internal structure of the multifunctional cooking machine while improving the heat dissipation efficiency.

[0052] Embodiment 2, refer to Figure 3 and Figure 4 , the difference from Embodiment 1 lies in the connection between the air outlet channel 13 and the accommodating cavity 11, that is, at the air outlet window 131, a wind direction adjusting member 8 is provided. The structural form of the wind direction adjusting member 8 is similar to the structure of an air conditioner for horizontal air sweeping, so it can change the direction of air entering the accommodating buffer area 132, thereby balancing the vector sum of the forces exerted on the base housing 1 by the air in the two air inlet channels 12, so that the multifunctional cooking machine can be placed more stably on the table or countertop.

[0053] Refer to Figure 4 , a blocking block 9 is installed at the lifting and holding notch 14 by magnetic attraction. When the multifunctional cooking machine stops working, the blocking block 9 will prevent insects from entering the accommodating cavity 11 through the air inlet channel 12 or the air outlet channel 13, so as to protect the internal electronic components of the multifunctional cooking machine.

[0054] The above are all the preferred embodiments of this application. It does not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A multifunctional cooking machine, characterized in that: Comprising: A base housing (1) is provided with a receiving cavity (11), an air inlet passage (12) and an air outlet passage (13). The air inlet passage (12) and the air outlet passage (13) are both communicated with the receiving cavity (11). One ends of the air inlet passage (12) and the air outlet passage (13) far away from the receiving cavity (11) are communicated to the bottom edge of the base housing (1) for forming a lifting and holding notch (14); A driving assembly (2) is arranged in the receiving cavity (11). The driving assembly (2) is provided with two output ends, and one of the output ends is used for connecting a cutter head assembly; An air blade (3) is connected to the other output end of the driving assembly (2) for allowing air to sequentially pass through the air inlet passage (12), the receiving cavity (11) and the air outlet passage (13); The receiving cavity (11) is provided with a PCBA heat sink (4); the communication part between the air inlet passage (12) and the receiving cavity (11) is divided into a first air inlet part (121) and a second air inlet part (122). The first air inlet part (121) is used for guiding air to the position where the driving assembly (2) is located; the second air inlet part (122) is used for guiding air to the position where the PCBA heat sink (4) is located; The driving component (2) includes a motor upper bracket (21), a stator (22), a rotor (23), a motor shaft (24), a wind hood (25), and a commutator (26). The motor upper bracket (21) is disposed in the accommodating cavity (11); the stator (22) is connected to the motor upper bracket (21) and is used to form a first heat dissipation air inlet part (27); the rotor (23) is disposed on the stator (22); the motor shaft (24) is disposed through the rotor (23) and is used to form two output ends; the wind hood (25) is connected to one end of the stator (22) away from the motor upper bracket (21) and is used to form a second heat dissipation air inlet part (28) and a heat dissipation air outlet part (29). The second heat dissipation air inlet part (28) is located at a position where the wind hood (25) is close to the stator (22), and the heat dissipation air outlet part (29) is located at a position where the wind hood (25) is away from the stator (22); the commutator (26) is disposed at a position where the motor shaft (24) is away from the motor upper bracket (21), and the commutator (26) is located inside the wind hood (25); an air guiding retaining wall (5) is disposed in the accommodating cavity (11). The upper part of the air guiding retaining wall (5) is close to the connection part of the air inlet channel (12) and the accommodating cavity (11), and the lower part of the air guiding retaining wall (5) is close to the connection part of the air outlet channel (13) and the accommodating cavity (11). It is used to form a first heat dissipation path (51) and a second heat dissipation path (52) for air in the accommodating cavity (11). The first heat dissipation path (51) sequentially passes through the first heat dissipation air inlet part (27), the rotor (23), the commutator (26), and the heat dissipation air outlet part (29), and the second heat dissipation path (52) sequentially passes through the second heat dissipation air inlet part (28), the commutator (26), and the heat dissipation air outlet part (29).

2. The multifunctional cooking machine according to claim 1, wherein: The wind blade (3) is a centrifugal wind blade (3), and the connection part of the air outlet channel (13) and the accommodating cavity (11) is disposed on the air guiding retaining wall (5); a partition retaining wall (6) is further disposed in the accommodating cavity (11). The partition retaining wall (6) is located between the inner side of the air guiding retaining wall (5) and the outer side of the wind blade (3) and is used to separate the heat dissipation air outlet part (29) and the second heat dissipation air inlet part (28).

3. The multifunctional cooking machine according to claim 2, wherein: The partition retaining wall (6) is divided into an installation wall (61) and a sound insulation cotton (62). There are two installation walls (61) disposed at intervals, and the sound insulation cotton (62) is disposed at the interval. A contact notch (611) communicating with the sound insulation cotton (62) is disposed on the installation wall (61) close to the wind blade (3).

4. The multifunctional cooking machine according to claim 2, wherein: The air outlet channel (13) includes an air outlet window (131), a receiving buffer area (132), and an extending buffer area (133). The air outlet window (131) is provided on the air guiding retaining wall (5); the receiving buffer area (132) is communicated with the air outlet window (131); the extending buffer area (133) is located below the receiving buffer area (132), and the direction in which air leaves the air outlet window (131) is opposite to the direction in which air leaves the extending buffer area (133).

5. The multifunctional cooking machine according to claim 1, wherein: A sealing gasket (7) made of an elastic material is provided on the bottom surface of the machine base housing (1), and the sealing gasket (7) is used to separate one end of the air inlet channel (12) and the air outlet channel (13) away from the accommodation cavity (11).

6. The multifunctional cooking machine according to claim 5, wherein: There are two air inlet channels (12), and the two air inlet channels (12) are symmetrically arranged with respect to the air outlet channel (13); a wind direction adjusting member (8) is provided at the connection between the air outlet channel (13) and the accommodation cavity (11), and the wind direction adjusting member (8) is used to balance the vector sum of the forces exerted on the machine base housing (1) by the air in the two air inlet channels (12) with the air in the air outlet channel (13).

7. The multifunctional cooking machine according to claim 1, wherein: The machine base housing (1) includes an upper housing (15) and a lower housing (16). The upper housing (15) is used to connect with the mixing cup; the lower housing (16) is detachably connected to the upper housing (15), and the lower housing (16) is provided with the air inlet channel (12) and the air outlet channel (13).

8. The multifunctional cooking machine according to claim 1, characterized in that: A blocking block (9) is detachably provided at the lifting and holding notch (14). When the multifunctional cooking machine stops, the blocking block (9) is used to prevent bugs from entering the accommodation cavity (11) through the air inlet channel (12) or the air outlet channel (13).

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