Food processor capable of optimizing heat dissipation

Abstract

The food processor comprises a main machine and a cup body assembly installed on the main machine, a motor assembly and a power panel assembly are arranged in the main machine, the power panel assembly is arranged below the motor assembly, the power panel assembly is provided with a first air inlet channel in the first horizontal direction, and the motor assembly comprises a motor; the motor is provided with a motor heat dissipation cavity, the motor heat dissipation cavity is provided with a motor air inlet and a motor air outlet, the first air inlet duct is communicated with the motor air inlet through an axial communication channel, an air duct assembly is further arranged between the power panel assembly and the motor assembly, an exhaust air duct is arranged between the motor assembly and the air duct assembly, and the motor air outlet is communicated with the exhaust air duct. The air exhaust duct spirally extends downwards in the axial direction of the main machine. The motor and the power panel are axially arranged, the heat dissipation effect of the motor and the power panel can be improved by optimizing the air duct structure, and meanwhile noise reduction of the machine can be improved.

Description

Technical Field

[0001] The utility model relates to the field of food processing machines, in particular to a food processing machine with optimized heat dissipation. Background Art

[0002] There are two installation methods for variable frequency wall breaking machines on the market. One is to place the power board and the motor in parallel. When the machine is working, the external airflow can pass through the power board and the motor at the same time for heat dissipation. However, this arrangement will cause the radial volume of the machine to be larger, resulting in a large footprint. The other is to place the power board under the motor. This arrangement can promote the radial miniaturization of the entire machine, but the heat dissipation effect for this type of machine is currently poor.

[0003] In the related art, patent CN209300918U discloses a food processor, which does not arrange the air collecting chamber, air duct, and air outlet chamber on the same surface of the chassis, and optimizes heat dissipation and noise reduction by extending the flow path of the airflow. However, the above scheme is only an improvement for the heat dissipation of the motor, not for the heat dissipation of both the motor and the power board. How to optimize the heat dissipation of the motor and the power board together remains to be solved. Utility Model Content

[0004] In order to solve the technical problem in the prior art that effective heat dissipation of the motor and the power board cannot be achieved for models with compact arrangement of the motor and the power board, the utility model provides a food processing machine with optimized heat dissipation, aiming to optimize the heat dissipation effect of the motor and the power board, while improving the noise reduction of the machine.

[0005] The utility model discloses a food processing machine with optimized heat dissipation, comprising a main machine and a cup body assembly installed on the main machine, wherein a motor assembly and a power board assembly are arranged in the main machine, the power board assembly is arranged below the motor assembly, the power board assembly is provided with a first air inlet duct along a first horizontal direction, the motor assembly comprises a motor, the motor has a motor heat dissipation cavity, the motor heat dissipation cavity is provided with a motor air inlet and a motor air outlet, the first air inlet duct is connected with the motor air inlet via an axial connecting channel, an air duct assembly is further provided between the power board assembly and the motor assembly, an exhaust air duct is provided between the motor assembly and the air duct assembly, the motor air outlet is connected with the exhaust air duct, and the exhaust air duct extends downward in a spiral along the axial direction of the main machine.

[0006] The food processing machine with optimized heat dissipation of the utility model also has the following additional technical features:

[0007] The power board assembly includes a power board and a power board protective cover. The power board has a heating area arranged along a first horizontal direction. The power board protective cover is arranged on the heating area and the power board protective cover and the heating area enclose the first air inlet duct.

[0008] The heating area is provided with a plurality of heat sinks arranged at intervals, the heat sinks extend along a first horizontal direction, a gap is formed between two adjacent heat sinks, and an extending direction of the gap is the same as a flow direction of the airflow.

[0009] The power board protective cover includes a cover top wall, a first cover side wall connected to one end of the cover top wall and folded downward, and a second cover side wall connected to the other end of the cover top wall and folded upward. The first air inlet duct is formed below the cover top wall, an air inlet channel connected to the outside is formed at the first cover side wall, and the connecting channel is formed at the second cover side wall.

[0010] The motor assembly also includes a motor bracket and a motor lower cover that clamp the motor up and down, the motor bracket and the motor lower cover form a accommodating cavity that wraps the motor, the accommodating cavity is provided with a first air inlet and a first air outlet, one side of the first air inlet is connected to the first air inlet duct, and the other side is connected to the motor air inlet, one side of the first air outlet is connected to the motor air outlet, and the other side is connected to the exhaust duct.

[0011] A first connecting channel extending downward is provided at the edge of the lower surface of the motor lower cover, the first air inlet is arranged at the upper end of the first connecting channel, the power board assembly is provided with a second connecting channel extending upward, the lower end of the first connecting channel and the second connecting channel are plugged and connected, and the first connecting channel and the second connecting channel constitute the connecting channel.

[0012] The motor assembly includes a motor lower cover arranged below the motor, the lower surface of the motor lower cover and the upper surface of the air duct assembly enclose a first arc-shaped air duct, one end of the first arc-shaped air duct is provided with a first air outlet, and the first arc-shaped air duct extends spirally downward in a direction away from the first air outlet.

[0013] The air duct assembly includes an air duct body and an air duct cover arranged at the bottom of the air duct body. The lower surface of the air duct body and the air duct cover enclose a second curved air duct, and the second curved air duct extends spirally downward in the direction of air outlet. The first curved air duct and the second curved air duct constitute the exhaust air duct.

[0014] A first air outlet channel protruding downward is provided at one end of the second arc-shaped air duct, and a second air outlet channel extending upward is provided at the power board assembly, and the first air outlet channel is connected to the second air outlet channel by plugging.

[0015] An air outlet hole is arranged on the side wall at the bottom of the main unit, the lower end of the second air outlet channel is bent outwardly and communicated with the air outlet hole, and a noise reduction member is arranged at the bottom of the second air outlet channel.

[0016] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0017] 1. In the food processing machine with optimized heat dissipation of the utility model, the power board assembly is arranged below the motor assembly, which can avoid the horizontal parallel arrangement of the two resulting in a large radial size of the machine, and then resulting in a large footprint of the machine, which is conducive to the miniaturization of the machine; when the machine is working, the external air flow first flows into the first air inlet duct below to dissipate the heat of the power board assembly, and then the air flow flows upward into the motor heat dissipation cavity to dissipate the heat of the motor, and finally the air flow is discharged along the exhaust duct to complete the heat dissipation. The entire heat dissipation path can achieve heat dissipation for the power board assembly and the motor, optimizes the heat dissipation effect, and can prevent the motor from overheating and affecting its use and life; and the exhaust duct extends downward in an axial spiral, which can extend the exhaust path, so that during the heat dissipation process, the accompanying noise can be frequently reflected and refracted, which can effectively enhance the noise attenuation effect, so that the noise finally transmitted to the outside of the machine is very weak, which can significantly improve the noise reduction effect and provide a pleasant user experience.

[0018] 2. As a preferred embodiment, the power board assembly includes a power board and a power board protective cover, the power board has a heating zone arranged along a first horizontal direction, the power board protective cover is arranged in the heating zone, and the power board protective cover and the heating zone enclose the first air inlet duct; thus, the airflow flows through the heating zone along the first air inlet duct to achieve focused heat dissipation of the power board, which can prevent the power board from overheating and affecting its use and life. Furthermore, the power board and the motor are isolated by the power board protective cover, which can hinder the heat transfer between the power board and the motor, which helps the power board and the motor to have a suitable operating temperature and prevent damage due to overheating.

[0019] As a preferred embodiment of the present embodiment, the heating zone is provided with a plurality of heat sinks arranged at intervals, the heat sinks extend along a first horizontal direction, and gaps are formed between two adjacent heat sinks, and the extension direction of the gaps is the same as the flow direction of the airflow; thereby, the components in the heating zone transfer heat to the heat sinks, and then the heat is dissipated through the heat sinks, with a larger heat dissipation area, and the airflow can quickly take away the heat when passing through, thereby achieving efficient heat dissipation; and the airflow can flow smoothly and quickly along the gaps, ensuring the reliability of heat dissipation.

[0020] As a preferred embodiment of the present embodiment, the power board protective cover includes a cover top wall, a first cover side wall connected to one end of the cover top wall and folded downward, and a second cover side wall connected to the other end of the cover top wall and folded upward, the first air inlet duct is formed below the cover top wall, the air inlet channel connected to the outside is formed at the first cover side wall, and the connecting channel is formed at the second cover side wall; thus, the heat dissipation path of the power board is from the vertical air inlet channel to the horizontal first air inlet duct, and then to the vertical connecting channel. The heat dissipation path is bent in multiple places, which can extend the heat dissipation path, enhance heat dissipation and help reduce noise; the setting of the connecting channel provides conditions for the airflow to flow upward into the motor heat dissipation cavity, and the connecting channel is formed by using the structure of the power board protective cover itself, and a separate channel structure can be omitted, which is conducive to simplifying the structural configuration; and the power board protective cover covers the power board on the lower side, which can prevent water from dripping directly onto the power board when water enters the main unit, causing short circuits and other adverse conditions, thereby improving reliability and safety in use.

[0021] 3. As a preferred embodiment, the motor assembly also includes a motor bracket and a motor lower cover for clamping the motor up and down, the motor bracket and the motor lower cover form a accommodating cavity that wraps the motor, the accommodating cavity is provided with a first air inlet and a first air outlet, one side of the first air inlet is connected with the first air inlet duct, and the other side is connected with the motor air inlet, one side of the first air outlet is connected with the motor air outlet, and the other side is connected with the exhaust duct; by setting the accommodating cavity, the motor is double-wrapped by the motor heat dissipation cavity and the accommodating cavity, which can optimize the heat dissipation effect while preventing the noise generated by the motor from being transmitted outward, which is beneficial to reducing the working noise of the machine and pleasing the user experience.

[0022] As a preferred embodiment of the present embodiment, a first connecting channel extending downward is provided at the edge of the lower surface of the motor lower cover, the first air inlet is arranged at the upper end of the first connecting channel, the power board assembly is provided with a second connecting channel extending upward, the lower end of the first connecting channel and the second connecting channel are plugged and connected, and the first connecting channel and the second connecting channel constitute the connecting channel; thus, a connecting channel can be formed by utilizing the structure of the motor lower cover and the power board assembly, so that after the airflow dissipates the heat of the power board assembly, it can flow upward to the motor to dissipate the heat of the motor; under the premise of compact structural arrangement, the heat dissipation path can be optimized to fully dissipate the heat of the power board assembly and the motor.

[0023] 4. As a preferred embodiment, the motor assembly includes a motor lower cover arranged under the motor, the lower surface of the motor lower cover and the upper surface of the air duct assembly enclose a first arc-shaped air duct, a first air outlet is provided at one end of the first arc-shaped air duct, and the first arc-shaped air duct spirally extends downward in a direction away from the first air outlet; thus, the first arc-shaped air duct constitutes an upper exhaust air duct, which can discharge the heat of the motor along the first arc-shaped air duct, and the exhaust path is long, which is conducive to heat dissipation and noise reduction.

[0024] As a preferred embodiment of the present embodiment, the duct assembly includes a duct main body and a duct cover arranged at the bottom of the duct main body, the lower surface of the duct main body and the duct cover enclose a second curved duct, the second curved duct spirally extends downward in the direction of air outlet, the first curved duct and the second curved duct constitute the exhaust duct; thus, the second curved duct constitutes the lower exhaust duct, and the hot air flow makes a second circuitous flow along the second curved duct, further increasing the turning angle of the hot air flow, extending the exhaust path, and facilitating further attenuation of noise.

[0025] Furthermore, one end of the second curved air duct is provided with a first air outlet channel protruding downward, and the power board assembly is provided with a second air outlet channel extending upward, and the first air outlet channel and the second air outlet channel are plugged and connected; thus, the hot air flow can finally be discharged downward through the first air outlet channel and the second air outlet channel after flowing along the spiral air duct, ensuring smooth exhaust.

[0026] Furthermore, an air outlet is provided on the side wall at the bottom of the main unit, and the lower end of the second air outlet channel is bent outward and connected to the air outlet, and a noise reduction component is provided at the bottom of the second air outlet channel; thereby, when the hot air flow flows along the second air outlet channel, it can be discharged from the side air outlet through the turning point, thereby extending the air outlet path and facilitating noise reduction; and the noise reduction component further arranged can absorb part of the noise, making the noise reduction effect more obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0028] Figure 1 This is a schematic structural diagram of a food processor according to one embodiment of the present application.

[0029] Figure 2 An exploded schematic diagram of a host and its internal structure according to an implementation mode of the present application.

[0030] Figure 3This is a schematic diagram of the air inlet path in the first air inlet duct under one implementation mode of the present application.

[0031] Figure 4 A schematic diagram of an air inlet path in a motor assembly according to one embodiment of the present application.

[0032] Figure 5 This is a schematic diagram of an exhaust path in one implementation of the present application.

[0033] Figure 6 This is a schematic diagram of the top-down arrangement of the motor lower cover and the air duct assembly in one embodiment of the present application.

[0034] Figure 7 for Figure 6 Schematic diagram of the inverted structural parts.

[0035] Figure 8 A schematic diagram of the upper surface of a lower cover of a motor according to an embodiment of the present application.

[0036] Fig. 9 for Figure 8 Schematic diagram of the lower surface of the motor lower cover.

[0037] Fig.10 It is a schematic diagram of the upper surface of the air duct main body in one embodiment of the present application.

[0038] Fig.11 for Fig.10 Schematic diagram of the lower surface of the air duct body.

[0039] Fig.12 This is a schematic structural diagram of a power board protective cover according to one embodiment of the present application.

[0040] Fig.13 for Fig.12 Schematic diagram of the inner surface of the power board protective cover.

[0041] Reference numerals:

[0042] 10. Host; 11. Cup assembly; 12. First air inlet duct; 13. Motor; 101. Main body; 102. Base; 103. Air inlet hole; 104. Air outlet hole; 14. Power board; 15. Power board protective cover; 141. Heat sink; 151. Air inlet channel; 152. Communication channel; 153. Accommodation slot; 154. Avoidance slot; 155. Screw column; 156. Support foot; 16. Motor bracket; 17. Motor lower cover; 17 1. First air inlet; 172. First air outlet; 18. Flexible pad; 173. First connecting channel; 157. Second connecting channel; 174. First channel; 19. Air duct body; 191. Air duct cover; 192. Second channel; 193. Second curved air duct; 194. Connecting port; 195. First air outlet channel; 158. Second air outlet channel; 20. Noise reduction component; 21. Control panel; 22. Operation panel; 131. Cooling fan. DETAILED DESCRIPTION

[0043] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0044] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0045] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0046] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through a transition structure, but are only connected to form a whole through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0049] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0050] like Figures 1 to 13 As shown, the present application provides a food processor with optimized heat dissipation, including a main unit 10 and a cup body assembly 11 installed on the main unit 10, wherein a motor assembly and a power board assembly are provided in the main unit 10, wherein the power board assembly is arranged below the motor assembly, and the power board assembly is provided with a first air inlet duct 12 along a first horizontal direction, the motor assembly includes a motor 13, and the motor 13 has a motor heat dissipation cavity, wherein the motor heat dissipation cavity is provided with a motor air inlet and a motor air outlet, the first air inlet duct 12 is connected with the motor air inlet via an axial connecting channel, a duct assembly is further provided between the power board assembly and the motor assembly, an exhaust duct is provided between the motor assembly and the duct assembly, the motor air outlet is connected with the exhaust duct, and the exhaust duct extends downward in a spiral along the axial direction of the main unit 10.

[0051] Specifically, Figure 2 The exploded schematic diagram of the host 10 and its internal components is shown. The motor assembly and the power board assembly are stacked from top to bottom, which can reduce the radial size of the host 10. When the host 10 is placed on a workbench, the space it occupies can be reduced and it is easy to store. The host 10 includes a main body 101. The top of the main body 101 is provided with a first opening, which can be used to install the power board assembly and the motor assembly into the host 10. The bottom of the main body 101 is provided with a second opening, and the second opening is closed by a base 102. The base 102 and the main body 101 can be an integral part or a split part. The base 102 is provided with an air inlet 103 and an air outlet 104. When the machine is working, the power board 14 and the motor 13 can be cooled by the air inlet 103-the first air inlet duct 12-the motor air inlet-the motor air outlet-the exhaust air duct-the air outlet 104. By optimizing the heat dissipation path in a limited axial space, while ensuring good heat dissipation, it is beneficial to improve the noise reduction effect.

[0052] The first air inlet duct 12 is arranged in the horizontal direction. In order to allow the airflow to continue to dissipate heat upward to the motor 13 after passing through the power board assembly, the present application is provided with a connecting channel to achieve airflow turning flow. The connecting channel can be a separate structure, or a structure on the first air inlet duct 12, or can be set on the motor assembly, and the present application does not limit this.

[0053] The motor 13 may be a brushless motor, which can realize the flattening of the motor 13, which is beneficial to the reduction of the axial size of the whole machine. The motor heat dissipation cavity is formed by, for example, a motor upper shell and a motor lower shell surrounding the outside of the motor 13, the motor air inlet is, for example, arranged on the motor upper shell, and the motor air outlet is, for example, arranged on the motor lower shell. When the motor 13 dissipates heat, the air flow can flow through the stator and rotor of the motor 13 to achieve good heat dissipation.

[0054] The provision of the air duct assembly can, on the one hand, extend the exhaust path, which is beneficial to heat dissipation and noise reduction, and on the other hand, increase the isolation between the motor 13 and the power board 14, prevent the two from transferring heat to each other, and enhance the thermal insulation effect.

[0055] Further, such as Figure 2 As shown, a control panel 21 is installed on the front end face of the main body 101, and an operation panel 22 is arranged on the outside of the control panel 21. The user can control the operation of the machine through the operation panel 22. Placing the control panel 21 vertically can further reduce the radial size of the host 10 and promote the miniaturization of the whole machine.

[0056] As a preferred embodiment of the present application, the power board assembly includes a power board 14 and a power board protective cover 15, the power board 14 has a heating zone arranged along a first horizontal direction, the power board protective cover 15 is covered in the heating zone and the power board protective cover 15 and the heating zone enclose to form the first air inlet duct 12.

[0057] Specifically, a plurality of components are distributed on the power board 14, wherein the heat generation area has high heat generation components with a large heat generation. By forming the first air inlet duct 12 here, it is beneficial to focus the heat dissipation in the heat generation area, thereby ensuring that the overall temperature of the power board 14 will not be too high.

[0058] Furthermore, the heating area is provided with a plurality of heat sinks 141 arranged at intervals, the heat sinks 141 extend along a first horizontal direction, a gap is formed between two adjacent heat sinks 141, and the extending direction of the gap is the same as the flow direction of the airflow.

[0059] Since heat is directly dissipated from the surface of the components to the air, the heat dissipation area is small and the heat dissipation effect is poor. In this application, by setting a heat sink 141, the components in the heat-generating area first conduct the heat to the heat sink 141 when dissipating heat, and then dissipate the heat through the heat sink 141, which has a larger heat dissipation area. When the airflow passes through, the heat can be quickly taken away, and efficient heat dissipation can be achieved. Specifically, when the airflow flows along the first air inlet duct 12, it can flow along the gap to take away the heat on the surface of the heat sink 141. The extension direction of the gap is the same as the flow direction of the airflow, which can avoid blocking the airflow flow, making the airflow flow smoother, and can further optimize the heat dissipation effect of the power board 14.

[0060] exist Figure 3 In the example, the heat sink 141 extends laterally, for example. It can be understood that in other embodiments, the heat sink 141 can also be tilted to form a certain angle with the airflow direction, and the heat sink 141 can be prevented from being perpendicular to the airflow direction and blocking the airflow.

[0061] By providing a plurality of heat sinks 141, the heat dissipation area can be increased, and the air flow can quickly take away the heat when passing through, thereby achieving efficient heat dissipation. The power board 14 is suspended relative to the base 102, and the air inlet 103 is, for example, provided at the front end of the base 102, and the air outlet 104 is provided at the rear end of the base 102. Figure 3 As shown, after the airflow enters the host 10 from the air inlet 103 , it can flow through the heating area along a first horizontal direction to take away the heat of the power board 14 . The first horizontal direction is, for example, the direction from front to back along the host 10 .

[0062] Furthermore, the power board protective cover 15 includes a cover top wall, a first cover side wall connected to one end of the cover top wall and folded downward, and a second cover side wall connected to the other end of the cover top wall and folded upward. The first air inlet duct 12 is formed below the cover top wall, an air inlet channel 151 connected to the outside is formed at the first cover side wall, and the connecting channel 152 is formed at the second cover side wall.

[0063] like Figure 3As shown, the heat dissipation path of the power board 14 is from the vertical air inlet channel 151 to the horizontal first air inlet duct 12, and then to the vertical connecting channel 152. The heat dissipation path is bent in multiple places, which can extend the heat dissipation path, enhance heat dissipation and help reduce noise; the setting of the connecting channel 152 provides conditions for the airflow to flow upward to the motor, and the connecting channel 152 is formed by utilizing the structure of the power board protective cover 15 itself, and a separate channel structure can be omitted, which is conducive to simplifying the structural configuration; and the power board protective cover 15 covers the power board 14 on the lower side, which can prevent water from dripping directly onto the power board 14 when water enters the main unit 10, causing adverse conditions such as short circuits, thereby improving reliability and safety in use.

[0064] like Fig.12 and Fig.13 As shown, the power board protective cover 15 is provided with a receiving groove 153, which can accommodate multiple heat sinks 141. One end of the receiving groove 153 is connected to the air inlet channel 151, which opens downward and can be connected to the air inlet hole 103 on the base 102. The other end of the receiving groove 153 is connected to the connecting channel 152, which opens upward, so that the airflow can flow upward to the motor 13. Further, the power board protective cover 15 is also provided with a plurality of avoidance grooves 154 on one side of the receiving groove 153, which are used to avoid the components on the power board 14. The power board 14 can be fixed to the power board protective cover 15 by screws. The lower surface of the power board protective cover 15 is provided with a screw column 155, and the corresponding position of the power board 14 is provided with a screw hole. By inserting the screws, the installation can be simplified and fixed firmly. Further, a cylindrical support foot 156 is provided at the edge of the power board protective cover 15, and a shock-absorbing pad can be provided in the support foot 156 to make the power board protective cover 15 and the base 102 flexibly abut.

[0065] As a preferred embodiment of the present application, the motor assembly also includes a motor bracket 16 and a motor lower cover 17 for clamping the motor 13 up and down, the motor bracket 16 and the motor lower cover 17 form a accommodating cavity that wraps the motor 13, and the accommodating cavity is provided with a first air inlet 171 and a first air outlet 172, one side of the first air inlet 171 is connected to the first air inlet duct 12, and the other side is connected to the motor air inlet, and one side of the first air outlet 172 is connected to the motor air outlet, and the other side is connected to the exhaust duct.

[0066] By setting up the accommodating cavity, the motor 13 is double-wrapped by the motor heat dissipation cavity and the accommodating cavity, which can optimize the heat dissipation effect while preventing the noise generated by the motor 13 from being transmitted outward, which is beneficial to reducing the machine working noise and pleasing the user experience. Specifically, when the airflow dissipates heat for the motor 13, the heat dissipation path is the first air inlet 171-motor air inlet-motor heat dissipation-motor air outlet-first air outlet 172, which can form a closed heat dissipation path and optimize the heat dissipation of the motor 13.

[0067] The airflow flows into the accommodating cavity through the first air inlet 171, and can flow along the second horizontal direction to form a second air inlet duct in the accommodating cavity when dissipating heat from the motor 13. Figure 4 The flow path of the airflow in the accommodating cavity is shown. The second horizontal direction is, for example, opposite to the first horizontal direction, so that the overall air inlet path is constantly turning, which is conducive to extending the path, increasing the heat dissipation area and improving the heat dissipation effect. The motor 13 is provided with a heat dissipation fan 131. The rotation of the heat dissipation fan 131 forms a negative pressure in the host 10, which can prompt the airflow to enter the accommodating cavity faster to dissipate the heat of the motor 13, and then the hot airflow can be blown out in time to improve the heat dissipation efficiency.

[0068] Further preferably, Figure 2 As shown, a flexible pad 18 is sandwiched between the motor bracket 16 and the motor 13, and the flexible pad 18 can prevent the noise of the motor 13 from being transmitted upward and play a certain shock-absorbing effect. Further, a shock-absorbing pad is installed on the motor 13, which can be isolated from the motor bracket 16 and the motor lower cover 17 by the shock-absorbing pad to enhance the shock-absorbing effect.

[0069] Furthermore, a first connecting channel 173 extending downward is provided at the edge of the lower surface of the motor lower cover 17, the first air inlet 171 is arranged at the upper end of the first connecting channel 173, and the power board assembly is provided with a second connecting channel 157 extending upward, and the lower end of the first connecting channel 173 is connected to the second connecting channel 157 by plugging.

[0070] like Figure 4 As shown, in this embodiment, the communication channel includes a first communication channel 173 and a second communication channel 157, so that the airflow turns upward to the motor 13 after passing through the power board 14. In one example, the lower end of the first communication channel 173 can extend into the second communication channel 157, and the second communication channel 157 is provided with a step portion for the first communication channel 173 to be plugged in, and the two overlap in the axial direction to avoid air leakage at this position. It can be understood that the first communication channel 173 and the second communication channel 157 can also be plugged in so that the upper end of the second communication channel 157 extends into the first communication channel 173.

[0071] As a preferred embodiment, the motor assembly includes a motor lower cover 17 arranged below the motor 13, the lower surface of the motor lower cover 17 and the upper surface of the air duct assembly enclose a first arc-shaped air duct, and a first air outlet 172 is provided at one end of the first arc-shaped air duct, and the first arc-shaped air duct extends spirally downward in a direction away from the first air outlet 172.

[0072] Specifically, Figures 6 to 9As shown, the lower surface of the motor lower cover 17 is provided with a concave first channel 174, and the upper surface of the air duct assembly is provided with a concave second channel 192. The first channel 174 and the second channel 192 are of the same shape and enclose a first arc-shaped air duct, wherein the height of the first channel 174 gradually decreases away from the first air outlet 172, and the depth of the second channel 192 gradually increases away from the first air outlet 172, so that the airflow can flow spirally downward along the first arc-shaped air duct. The first arc-shaped air duct constitutes an upper exhaust air duct, which can discharge the heat of the motor 13 along the first arc-shaped air duct. The exhaust path is long, which is conducive to heat dissipation and noise reduction.

[0073] Furthermore, the air duct assembly includes an air duct body 19 and an air duct cover 191 arranged at the bottom of the air duct body 19, and the lower surface of the air duct body 19 and the air duct cover 191 enclose a second arc-shaped air duct 193, and the second arc-shaped air duct 193 extends spirally downward in the direction of air outlet.

[0074] Specifically, in Figures 5 to 7 In the example of FIG. 1 , the first curved air duct and the second curved air duct 193 constitute a double-layer exhaust air duct, such as Fig.10 and Fig.11 As shown, a connecting port 194 is provided on the air duct body 19, and the airflow flows from the end of the first arc-shaped air duct through the connecting port 194 into the second arc-shaped air duct 193, so that the total rotation angle of the exhaust air exceeds 360°, which can effectively improve the noise reduction effect while dissipating heat.

[0075] Furthermore, one end of the second arc-shaped air duct 193 is provided with a first air outlet channel 195 protruding downward, and the power board assembly is provided with a second air outlet channel 158 extending upward, and the first air outlet channel 195 and the second air outlet channel 158 are plugged and connected.

[0076] like Fig.11 and Fig.12 As shown, the end of the second arc-shaped air duct 193 is connected to the first air outlet channel 195, and the power board protective cover 15 is provided with a second air outlet channel 158 with an upward opening. In one example, the lower end of the first air outlet channel 195 extends into the second air outlet channel 158, and the second air outlet channel 158 is provided with a step portion for the first air outlet channel 195 to be plugged in. The two overlap in the axial direction to avoid air leakage at this position. It can be understood that the plug-in cooperation between the first air outlet channel 195 and the second air outlet channel 158 can also be that the upper end of the second air outlet channel 158 extends into the first air outlet channel 195.

[0077] Furthermore, an air outlet hole 104 is provided on the side wall at the bottom of the main unit 10 , the lower end of the second air outlet channel 158 is bent outwardly to communicate with the air outlet hole 104 , and a noise reduction member 20 is provided at the bottom of the second air outlet channel 158 .

[0078] like Figure 5 As shown, when the hot air flows along the second air outlet channel 158, it can turn a certain angle (e.g., 100 degrees) and then be discharged from the side air outlet 104, which extends the air outlet path and is conducive to noise reduction. In addition, when the air flows downward along the second air outlet channel 158, it can directly blow the noise reduction member 20, and the noise reduction member 20 can absorb part of the noise, making the noise reduction effect more obvious. The noise reduction member 20 is, for example, a noise reduction sponge or a silicone member.

[0079] The technical solution protected by the present utility model is not limited to the above-mentioned embodiments. It should be pointed out that the combination of the technical solution of any embodiment with the technical solution of one or more other embodiments is within the protection scope of the present utility model. Although the present utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to it based on the present utility model. Therefore, these modifications or improvements made without departing from the spirit of the present utility model are within the scope of protection claimed by the present utility model.

Claims

1. A food processing machine with optimized heat dissipation, comprising a main machine and a cup assembly mounted on the main machine, wherein a motor assembly and a power board assembly are arranged in the main machine, characterized in that: The power board assembly is arranged below the motor assembly, and the power board assembly is provided with a first air inlet duct along a first horizontal direction. The motor assembly includes a motor, and the motor has a motor heat dissipation cavity, and the motor heat dissipation cavity is provided with a motor air inlet and a motor air outlet. The first air inlet duct is connected with the motor air inlet via an axial connecting channel. A duct assembly is also provided between the power board assembly and the motor assembly, and an exhaust duct is provided between the motor assembly and the duct assembly. The motor outlet is connected with the exhaust duct, and the exhaust duct extends downward in a spiral along the axial direction of the main machine.

2. A food processor with optimized heat dissipation according to claim 1, characterized in that: The power board assembly includes a power board and a power board protective cover. The power board has a heating area arranged along a first horizontal direction. The power board protective cover is arranged on the heating area and the power board protective cover and the heating area enclose the first air inlet duct.

3. A food processor with optimized heat dissipation according to claim 2, characterized in that: The heating area is provided with a plurality of heat sinks arranged at intervals, the heat sinks extend along a first horizontal direction, a gap is formed between two adjacent heat sinks, and an extending direction of the gap is the same as a flow direction of the airflow.

4. A food processor with optimized heat dissipation according to claim 2, characterized in that: The power board protective cover includes a cover top wall, a first cover side wall connected to one end of the cover top wall and folded downward, and a second cover side wall connected to the other end of the cover top wall and folded upward. The first air inlet duct is formed below the cover top wall, an air inlet channel connected to the outside is formed at the first cover side wall, and the connecting channel is formed at the second cover side wall.

5. The food processor with optimized heat dissipation according to claim 1, characterized in that: The motor assembly also includes a motor bracket and a motor lower cover that clamp the motor up and down, the motor bracket and the motor lower cover form a accommodating cavity that wraps the motor, the accommodating cavity is provided with a first air inlet and a first air outlet, one side of the first air inlet is connected to the first air inlet duct, and the other side is connected to the motor air inlet, one side of the first air outlet is connected to the motor air outlet, and the other side is connected to the exhaust duct.

6. A food processor with optimized heat dissipation according to claim 5, characterized in that: A first connecting channel extending downward is provided at the edge of the lower surface of the motor lower cover, the first air inlet is arranged at the upper end of the first connecting channel, the power board assembly is provided with a second connecting channel extending upward, the lower end of the first connecting channel and the second connecting channel are plugged and connected, and the first connecting channel and the second connecting channel constitute the connecting channel.

7. A food processor with optimized heat dissipation according to claim 1, characterized in that: The motor assembly includes a motor lower cover arranged below the motor, the lower surface of the motor lower cover and the upper surface of the air duct assembly enclose a first arc-shaped air duct, one end of the first arc-shaped air duct is provided with a first air outlet, and the first arc-shaped air duct extends spirally downward in a direction away from the first air outlet.

8. A food processor with optimized heat dissipation according to claim 7, characterized in that: The air duct assembly includes an air duct body and an air duct cover arranged at the bottom of the air duct body. The lower surface of the air duct body and the air duct cover enclose a second curved air duct, and the second curved air duct extends spirally downward in the direction of air outlet. The first curved air duct and the second curved air duct constitute the exhaust air duct.

9. A food processor with optimized heat dissipation according to claim 8, characterized in that: A first air outlet channel protruding downward is provided at one end of the second arc-shaped air duct, and a second air outlet channel extending upward is provided at the power board assembly, and the first air outlet channel is connected to the second air outlet channel by plugging.

10. A food processor with optimized heat dissipation according to claim 9, characterized in that: An air outlet hole is arranged on the side wall at the bottom of the main unit, the lower end of the second air outlet channel is bent outwardly and communicated with the air outlet hole, and a noise reduction member is arranged at the bottom of the second air outlet channel.

Images