Food processor with good heat dissipation effect

Abstract

The utility model discloses a food processor with a good heat dissipation effect, and relates to the field of life electric appliances, the food processor comprises a host machine and a processing assembly detachably arranged above the host machine, a brushless motor, a reduction gearbox and IPM modules matched with the brushless motor are arranged in the host machine, the IPM modules are arranged on the outer side of the brushless motor side by side, and the processing assembly is detachably arranged above the host machine. A heat dissipation channel communicated with the outside is further arranged in the main machine, the heat dissipation channel comprises a climbing section extending upwards and a descending section which is communicated with the climbing section and extends downwards relative to the climbing section, the IPM module is arranged in the climbing section, and the brushless motor and the reduction gearbox are arranged in the descending section, so that airflow can firstly pass through the IPM and then pass through the brushless motor and the reduction gearbox, and the airflow can pass through the brushless motor and the reduction gearbox. And the circuitous and bent heat dissipation path can effectively shorten the length of the heat dissipation channel and shorten the staying time of the air flow in the host, so that the air flow after heat dissipation of the brushless motor, the reduction gearbox and the IPM can be discharged out of the host more quickly, the flow rate of the air can be increased, and the heat dissipation effect of the brushless motor, the reduction gearbox and the IPM can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliances, in particular to a food processor with good heat dissipation effect. Background Art

[0002] Existing food processors usually include a main unit and a detachable processing assembly located above the main unit. The main unit is equipped with a motor, and the processing assembly is equipped with a processing part that is transmission-connected to the motor. When in use, the user places the food in the cup of the processing assembly, and the motor drives the processing part to rotate to process the food. In order to improve the stability of the working process and reduce the generation of noise, a brushless motor is usually selected as the motor. During the high-speed rotation of the brushless motor, the brushless motor will drive the flow of gas in the body, especially near the brushless motor, thereby achieving heat dissipation of the brushless motor. However, the brushless motor generates less heat during actual operation. In order to achieve control of the motor and other components, the food processor must be equipped with a power supply board that controls the operation of the motor and other components. The electronic components on the power supply board, especially the IPM module, heat up significantly during operation. The operating temperature of the power supply board directly determines its service life and stability.

[0003] In order to reduce the temperature rise of the power board, China's utility model patent CN202322777348.9 discloses a host and a food processor, wherein the host casing is provided with an air inlet, which is arranged opposite to the power board. After the external airflow passes through the air inlet, it first dissipates heat to the power board, and then climbs to the air inlet at the top of the motor casing to dissipate heat to the brushless motor, and then is discharged from the motor air outlet at the bottom of the motor, and finally discharged from the host casing; for example, China's utility model patent CN202322642955.4 discloses a low-noise food processor driven by a brushless motor, wherein the external airflow passes through the host air inlet to dissipate heat to the integrated power on the power board, and then flows into the air inlet on the side of the motor, flows through the inside of the motor and is discharged from the motor air outlet, and finally is discharged outside the host to dissipate heat to the brushless motor and the circuit board. In order to achieve high torque output, some other models, such as juicers, grinders, and dough mixers, will install a reduction gearbox between the brushless motor and the workpiece. The reduction gearbox reduces the output speed of the brushless motor to achieve high torque output. However, a large amount of heat will also be generated during the rotation of the reduction gearbox, which will cause a significant increase in the overall temperature inside the main unit and accelerate the aging of various components. The existing structure that only dissipates heat for the brushless motor and circuit board cannot meet the heat dissipation requirements of the above models. Utility Model Content

[0004] The purpose of the utility model is to provide a food processing machine with good heat dissipation effect, so as to solve the problem that the existing food processing machine with a reduction box can only realize the heat dissipation of the brushless motor and the circuit board but cannot realize the heat dissipation of the reduction box, resulting in a significant temperature rise of the main machine.

[0005] To achieve the above-mentioned purpose, the utility model provides a food processing machine with good heat dissipation effect, including a main body and a detachable processing component arranged above the main body, the main body is equipped with a brushless motor, a reduction gearbox connected to the brushless motor, and an IPM module matched with the brushless motor, the IPM modules are arranged side by side on the outside of the brushless motor, and the main body is also provided with a heat dissipation channel connected to the outside, the heat dissipation channel includes an upwardly extending climbing section and a descending section connected to the climbing section and extending downward relative to the climbing section, the IPM module is arranged in the climbing section, and the brushless motor and the reduction gearbox are arranged in the descending section.

[0006] The present application sets a brushless motor. By taking advantage of the characteristics of the brushless motor, when the user uses the food processor to process ingredients, the motor rotation noise is lower, achieving the effect of noise reduction. At the same time, the brushless motor can achieve variable frequency control, so that the food processor can control the brushless motor output different speeds according to different ingredients and processing processes, which can achieve better processing effects and more complete processing of ingredients, improve the taste of the ingredients, and the brushless motor occupies less space, which helps to improve the compactness of the internal structure of the whole machine and greatly reduces the axial size of the brushless motor and the cup body. At the same time, a reduction box is provided with a transmission connection with the brushless motor, so that the torque output by the brushless motor is further reduced by the reduction box before being transmitted to the stirring element, thereby achieving a higher torque output, realizing the processing of different ingredients and meeting the user's usage needs. In addition, the IPM module is arranged side by side on the outside of the brushless motor, effectively utilizing the lateral space within the main unit, which can further compress the axial size of the main unit, thereby reducing the center of gravity height of the entire main unit and the processing component, effectively improving the stability of the whole machine during operation, and further improving the stability of the processing component during the food processing process. At the same time, it can expand the contact area between the main unit and the desktop, thereby further improving the stability of the main unit.

[0007] In addition, the main unit is also provided with a heat dissipation channel connected to the outside world. The heat dissipation channel includes an upward extending climbing section and a descending section connected to the climbing section and extending downward relative to the climbing section. The IPM module is arranged in the climbing section, and the brushless motor and the reducer are arranged in the descending section, so that the brushless motor, the reducer and the IPM module can all achieve effective heat dissipation in the heat dissipation channel, which can effectively reduce the temperature rise of the brushless motor, the reducer and the IPM, and avoid the situation where the temperature rise of the three is obvious and leads to accelerated aging. At the same time, the setting of the climbing section and the descending section of the heat dissipation channel allows the airflow to be discharged outward after passing through the climbing section and then the descending section, so that the airflow can first pass through the IPM and then pass through the brushless motor and the reducer, that is: the airflow can first cool the IPM and then dissipate the heat of the brushless motor and the reducer, so that the airflow with a lower temperature can dissipate heat for the IPM, increase the temperature difference between the airflow and the IPM, and thus improve the heat dissipation effect of the IPM, further reduce the temperature rise of the IPM, and at the same time, after completing the cooling of the IPM, the airflow will pass through the brushless motor and the reducer again to dissipate heat for the brushless motor and the reducer, avoiding the brushless motor and the reducer being located upstream of the IPM, resulting in the airflow entering the heat dissipation channel having to pass through the brushless motor and the reducer before passing through the IPM, resulting in the airflow with a temperature rise after passing through the brushless motor and the reducer having a small temperature difference with the IPM when passing through the IPM, resulting in a poor heat dissipation effect on the IPM, thereby ensuring the heat dissipation effect of the brushless motor, the reducer and the IPM. In addition, the tortuous heat dissipation path can effectively shorten the length of the heat dissipation channel and shorten the time that the airflow stays in the host, so that the airflow after cooling the brushless motor, reduction gearbox and IPM can be discharged from the host more quickly, which helps to increase the flow rate of the gas, thereby allowing more gas to enter the heat dissipation channel for heat dissipation per unit time, further improving the heat dissipation effect of the IPM, reduction gearbox and brushless motor.

[0008] In a preferred implementation of a food processor with good heat dissipation, the reduction box is arranged upstream of the gas flow path in the descending section relative to the brushless motor, so that the air flow in the descending section first passes through the reduction box and then passes through the brushless motor.

[0009] The reduction gearbox will generate more heat during the deceleration process, and its heat generation is much higher than that of the brushless motor. By placing the reduction gearbox upstream of the gas flow path in the descending section relative to the brushless motor, the airflow can pass through the brushless motor and dissipate heat for the brushless motor after dissipating heat for the various components in the reduction gearbox. This avoids the situation where the brushless motor is located upstream of the reduction gearbox, resulting in the airflow entering the descending section having to pass through the brushless motor first and then through the reduction gearbox, causing the airflow that rises in temperature after passing through the brushless motor to have a smaller temperature difference with the reduction gearbox when passing through the reduction gearbox, resulting in a poor heat dissipation effect for the reduction gearbox.

[0010] In a preferred implementation of a food processor with good heat dissipation effect, an air guide cover is provided around the outer side of the reduction gearbox and the brushless motor. The air guide cover is provided with a cover air inlet connected to the climbing section and a cover air outlet connected to the outside world. The reduction gearbox is provided on the side close to the cover air inlet.

[0011] By arranging an air guide cover around the outer side of the reduction gearbox and the brushless motor, and the air guide cover is provided with an air inlet of the cover body connected to the climbing section and an air outlet of the cover body connected to the outside, the air flow moving upward through the climbing section passes through the air inlet of the cover body and enters the air guide cover, and then dissipates heat for the reduction gearbox and the brushless motor, and is then discharged outward through the air outlet of the cover body, which can achieve the airflow gathering effect, ensure that the airflow passes through the reduction gearbox and the brushless motor, and help to further improve the heat dissipation effect, and avoid the situation where the air flow entering the descending section is scattered and cannot effectively dissipate heat for the reduction gearbox and the brushless motor. At the same time, with the help of the air guide cover, the reduction gearbox and the brushless motor can be isolated from the main body housing, so that the noise generated by the two can be reduced for the first time in the air guide cover, and the noise transmitted to the outside of the air guide cover can be reduced for the second time under the action of the main body housing, thereby improving the noise reduction effect and reducing the spread of noise to the outside.

[0012] In a preferred implementation of a food processor with good heat dissipation effect, the reduction box is arranged above the brushless motor, and the air inlet of the cover is arranged on the top side wall of the air guide cover, and the air outlet of the cover is arranged on the bottom side wall of the air guide cover.

[0013] By placing the reduction gearbox above the brushless motor, the motor's output shaft can be directly connected to the reduction gearbox, eliminating the need for a separate intermediate transmission component. This helps further improve the compactness of the main unit, reduce the overall size, and lower production costs. Furthermore, the hood's air inlet is located on the top sidewall of the hood, and the hood's air outlet is located on the bottom sidewall of the hood. This ensures that airflow in the climbing section flows into the hood, passes through the hood's air inlet, then moves downward and is discharged outward through the hood's air outlet, achieving orderly heat dissipation for the reduction gearbox and brushless motor.

[0014] In a preferred implementation of a food processor with good heat dissipation effect, an air guide cover is provided around the outer side of the reduction gearbox and the brushless motor, and the descending section includes a heat dissipation cavity formed in the air guide cover, an air inlet of the cover connecting the heat dissipation cavity and the climbing section, and an air outlet of the cover connecting the heat dissipation cavity and the outside world.

[0015] By setting the descending section to include a heat dissipation cavity formed in the air guide cover, an air inlet of the cover connecting the heat dissipation cavity and the climbing section, and an air outlet of the cover connecting the heat dissipation cavity and the outside world, the air flow moving upward through the climbing section passes through the air inlet of the cover and then enters the heat dissipation cavity, realizing the heat dissipation of the brushless motor and the reduction gear box, and then is discharged outward through the air outlet of the cover, realizing effective heat dissipation of the brushless motor and the reduction gear box, and can realize the wind gathering effect of the air flow, ensure that the air flow passes through the reduction gear box and the brushless motor, which helps to further improve the heat dissipation effect.

[0016] In a preferred implementation of a food processor with good heat dissipation effect, the brushless motor includes a motor housing formed with a mounting cavity and a motor body disposed in the mounting cavity, and the mounting cavity is communicated with the heat dissipation cavity.

[0017] By configuring the brushless motor to include a motor housing with an installation cavity and a motor body arranged in the installation cavity, and the installation cavity is connected to the heat dissipation cavity, the airflow entering the heat dissipation cavity can not only dissipate heat on the outer surface of the motor housing, but also enter the installation cavity to further dissipate heat for the motor body, i.e., the rotor and stator and other components, which helps to further improve the heat dissipation effect, reduce the temperature rise of the brushless motor, and extend its service life.

[0018] In a preferred implementation of a food processor with good heat dissipation effect, the main unit includes a main unit housing, a side wall of the main unit housing is provided with a main unit air outlet, and the main unit air outlet is connected to the cover air outlet through an air guide tube.

[0019] By providing a host air outlet on the side wall of the host shell, and connecting the host air outlet with the cover air outlet through an air duct, when the gas after the heat dissipation of the brushless motor and the reduction gear box is discharged outward through the cover air outlet, it can be directly connected with the host air outlet through the air duct and discharged outward through the host air outlet, thereby guiding the airflow, avoiding the gas discharged outward through the cover air outlet from scattering in the host shell and unable to be discharged in time, resulting in internal air flow turbulence, and further causing the heat dissipation effect of each component to deteriorate, thereby ensuring the smoothness of gas flow and improving the heat dissipation efficiency.

[0020] In a preferred implementation of a food processor with good heat dissipation effect, the main unit includes a main unit shell, the top wall of the main unit shell is provided with ribs extending downward to the outside of the reduction box, and the air guide cover and the gap between the ribs cooperate to form a ring-shaped air inlet of the cover.

[0021] By providing ribs on the top wall of the main housing that extend downward to the outside of the reduction gearbox, and the gap between the air guide cover and the ribs cooperates to form an annular cover air inlet, the ribs can not only radially limit the reduction gearbox but also cooperate with the air guide cover to form the cover air inlet, thereby improving the functionality of the ribs. It also eliminates the need to provide an additional cover air inlet on the air guide cover, helping to improve production efficiency and reduce production costs. At the same time, the annular cover air inlet greatly increases the area of ​​the cover air inlet, allowing a large amount of airflow to enter per unit time to dissipate heat from the reduction gearbox and brushless motor, which helps to further improve the heat dissipation effect.

[0022] In a preferred implementation of a food processor with good heat dissipation effect, a reduction gear box is arranged above the brushless motor, and the air inlet of the cover body includes a first air inlet and a second air inlet arranged on the side wall of the air guide cover. The first air inlet at least partially overlaps with the reduction gear box in the horizontal direction, and the second air inlet at least partially overlaps with the brushless motor in the horizontal direction.

[0023] By configuring the hood air inlet to include a first air inlet and a second air inlet located on the side wall of the air guide hood, air can enter the heat dissipation cavity simultaneously through the first air inlet and the second air inlet, which helps to further increase the gas flow rate entering the heat dissipation cavity per unit time, thereby further improving the heat dissipation effect on the brushless motor and the reduction gearbox. At the same time, the first air inlet is configured to at least partially overlap with the reduction gearbox in the horizontal direction, and the second air inlet is configured to at least partially overlap with the brushless motor in the horizontal direction. This allows the airflow entering the heat dissipation cavity through the first air inlet to directly dissipate heat for the reduction gearbox, while the airflow entering the heat dissipation cavity through the second air inlet can directly dissipate heat for the brushless motor, achieving simultaneous heat dissipation of the two, thereby further improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 of the present invention. In the drawings:

[0025] Figure 1 This is an exploded view of a food processing machine in one embodiment of the present invention;

[0026] Figure 2 This is a cross-sectional view of a host in one embodiment of the present invention;

[0027] Figure 3 This is a schematic structural diagram of a host in one embodiment of the present invention;

[0028] Figure 4 This is a cross-sectional view of a brushless motor and a reduction gearbox in one embodiment of the present invention.

[0029] List of parts and reference numerals:

[0030] 1-processing components; 2-main unit, 21-main unit housing, 211-ribs, 212-main unit air outlet; 3-reduction gearbox; 4-brushless motor, 41-motor body, 42-motor housing, 421-installation cavity; 5-air guide cover, 51-cover air inlet, 52-cover air outlet, 53-heat dissipation cavity; 6-air guide tube; 7-IPM module. DETAILED DESCRIPTION

[0031] 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.

[0032] 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 scope of protection of the present invention is not limited to the specific implementation methods disclosed below.

[0033] like Figures 1 to 4 As shown, the utility model provides a food processing machine with good heat dissipation effect, including a main body 2 and a detachable processing component 1 arranged above the main body 2, the main body 2 is provided with a brushless motor 4, a reduction gear 3 connected to the brushless motor 4 and an IPM module 7 cooperating with the brushless motor 4, the IPM module 7 is arranged side by side on the outside of the brushless motor 4, and the main body 2 is also provided with a heat dissipation channel connected to the outside, the heat dissipation channel includes an upward extending climbing section and a descending section connected to the climbing section and extending downward relative to the climbing section, the IPM module 7 is arranged in the climbing section, and the brushless motor 4 and the reduction gear 3 are arranged in the descending section. It should be noted that the present application does not specifically limit the structure of the processing component 1, which can be a juicing component, a grinding component or a stirring component, etc.

[0034] The present application sets a brushless motor 4. By virtue of the characteristics of the brushless motor 4, when the user uses the food processor to process food, the motor rotation noise is lower, achieving the effect of noise reduction. At the same time, the brushless motor 4 can realize variable frequency control, so that the food processor can control the brushless motor 4 to output different speeds according to different ingredients and processing processes, which can achieve better processing effect and more complete processing of the food, improve the taste of the food output, and the brushless motor 4 takes up less space, which helps to improve the compactness of the internal structure of the whole machine and greatly reduces the axial size of the brushless motor 4 and the cup body. At the same time, a reduction box 3 is provided to be connected to the brushless motor 4, so that the torque output by the brushless motor 4 is further reduced by the reduction box 3 before being transmitted to the stirring element, thereby achieving greater torque output, realizing the processing of different ingredients and meeting the user's usage needs. In addition, the IPM module 7 is arranged side by side on the outside of the brushless motor 4, effectively utilizing the lateral space within the main unit 2, which can further compress the axial size of the main unit 2, thereby reducing the center of gravity height of the entire main unit 2 and the processing assembly 1, which can effectively improve the stability of the whole machine during operation and further improve the stability of the processing assembly 1 during food processing. At the same time, the contact area between the host 2 and the desktop can be expanded, thereby further improving the stability of the host 2.

[0035] In addition, a heat dissipation channel connected to the outside world is also provided in the host 2. The heat dissipation channel includes an upwardly extending climbing section and a descending section connected to the climbing section and extending downward relative to the climbing section. The IPM module 7 is arranged in the climbing section, and the brushless motor 4 and the reduction gear box 3 are arranged in the descending section, so that the brushless motor 4, the reduction gear box 3 and the IPM module 7 can all achieve effective heat dissipation in the heat dissipation channel, which can effectively reduce the temperature rise of the brushless motor 4, the reduction gear box 3 and the IPM, and avoid the situation where the temperature rise of the three is obvious and leads to accelerated aging. At the same time, the setting of the climbing section and the descending section of the heat dissipation channel allows the airflow to be discharged outward after passing through the climbing section and then the descending section, so that the airflow can first pass through the IPM and then pass through the brushless motor 4 and the reducer 3, that is: the airflow can first cool the IPM and then dissipate heat for the brushless motor 4 and the reducer 3, so that the airflow with a lower temperature can dissipate heat for the IPM, increase the temperature difference between the airflow and the IPM, thereby improving the heat dissipation effect of the IPM, and further reducing the temperature rise of the IPM. At the same time, after completing the cooling of the IPM, the airflow will pass through the brushless motor 4 and the reducer 3 again to dissipate heat for the brushless motor 4 and the reducer 3, avoiding the brushless motor 4 and the reducer 3 being located upstream of the IPM, resulting in the airflow entering the heat dissipation channel having to pass through the brushless motor 4 and the reducer 3 before passing through the IPM, resulting in the airflow with a temperature rise after passing through the brushless motor 4 and the reducer 3 having a small temperature difference with the IPM when passing through the IPM, resulting in a poor heat dissipation effect on the IPM, thereby ensuring the heat dissipation effect of the brushless motor 4, the reducer 3 and the IPM. Moreover, the tortuous heat dissipation path can effectively shorten the length of the heat dissipation channel and shorten the time that the airflow stays in the host 2, so that the airflow after cooling the brushless motor 4, the reduction gear box 3 and the IPM can be discharged from the host 2 more quickly, which helps to increase the flow rate of the gas, thereby allowing more gas to enter the heat dissipation channel for heat dissipation per unit time, further improving the heat dissipation effect of the IPM, the reduction gear box 3 and the brushless motor 4.

[0036] It should be noted that the present application does not specifically limit the relative positions of the reduction box 3 and the brushless motor 4 in the descending section. As a preferred embodiment of the present application, Figure 2 As shown, the reduction box 3 is arranged upstream of the gas flow path in the descending section relative to the brushless motor 4, so that the air flow in the descending section first passes through the reduction box 3 and then passes through the brushless motor 4.

[0037] The reduction gearbox 3 will generate more heat during the deceleration process, and its heat generation is much higher than that of the brushless motor 4. By arranging the reduction gearbox upstream of the gas flow path relative to the brushless motor 4 in the descending section, the airflow can pass through the brushless motor 4 and dissipate heat for the brushless motor 4 after dissipating heat for the various components in the reduction gearbox 3, thereby avoiding the situation where the brushless motor 4 is located upstream of the reduction gearbox 3, resulting in the airflow entering the descending section having to pass through the brushless motor 4 before passing through the reduction gearbox 3, resulting in the airflow with temperature rise after passing through the brushless motor 4 having a small temperature difference with the reduction gearbox 3 when passing through the reduction gearbox 3, resulting in poor heat dissipation effect for the reduction gearbox 3.

[0038] Furthermore, if Figure 2 As shown, an air guide cover 5 is provided around the outer side of the reduction gear box 3 and the brushless motor 4. The air guide cover 5 is provided with an air inlet 51 of the cover body connected to the climbing section and an air outlet 52 of the cover body connected to the outside world. The reduction gear box 3 is arranged on the side close to the air inlet 51 of the cover body.

[0039] The outer sides of the reduction gear box 3 and the brushless motor 4 are surrounded by an air guide hood 5, and the air guide hood 5 is provided with an air inlet 51 of the cover body connected to the climbing section and an air outlet 52 of the cover body connected to the outside, so that the air moving upward through the climbing section passes through the air inlet 51 of the cover body and enters the air guide hood 5, and then realizes the heat dissipation of the reduction gear box 3 and the brushless motor 4, and then is discharged to the outside through the air outlet 52 of the cover body, which can realize the airflow gathering effect, ensure that the airflow passes through the reduction gear box 3 and the brushless motor 4, and helps to further improve the heat dissipation effect, and avoid the situation where the airflow entering the descending section is scattered and cannot realize effective heat dissipation of the reduction gear box 3 and the brushless motor 4. At the same time, with the help of the air guide hood 5, the reduction gear box 3 and the brushless motor 4 can be isolated from the main body housing 21, so that the noise generated by the two can be reduced for the first time in the air guide hood 5, and the noise transmitted to the outside of the air guide hood 5 can be reduced for the second time under the action of the main body housing 21, thereby improving the noise reduction effect and reducing the noise transmission to the outside.

[0040] It should be further noted that the present application does not specifically limit the relative positions of the brushless motor 4 and the reduction gearbox 3 in this embodiment, and it can be any one of the following embodiments:

[0041] Implementation method 1: Figure 2 As shown, in this embodiment, the reduction gear box 3 is arranged above the brushless motor 4, and the cover air inlet 51 is arranged on the top side wall of the air guide cover 5, and the cover air outlet 52 is arranged on the bottom side wall of the air guide cover 5.

[0042] By positioning the reduction gearbox 3 above the brushless motor 4, the output shaft of the brushless motor 4 can be directly connected to the reduction gearbox 3, eliminating the need for a separate intermediate transmission component. This helps further enhance the compactness of the main unit 2, reduce the overall size, and lower production costs. Furthermore, the hood air inlet 51 is located on the top sidewall of the air scoop 5, and the hood air outlet 52 is located on the bottom sidewall of the air scoop 5. This allows the airflow in the climbing section to flow into the air scoop 5, pass through the air inlet of the air scoop 5, move downward, and be discharged outward through the hood air outlet 52, achieving orderly heat dissipation for the reduction gearbox 3 and the brushless motor 4.

[0043] Embodiment 2: In this embodiment, the reduction gearbox 3 and the brushless motor 4 are arranged side by side, the cover air inlet 51 is arranged on the top wall of the air guide cover 5, and the cover air outlet 52 is arranged on the side wall of the air guide cover 5.

[0044] As a preferred embodiment of the present application, Figure 2 As shown, an air guide cover 5 is provided around the outer side of the reduction gearbox 3 and the brushless motor 4. The descending section includes a heat dissipation cavity 53 formed in the air guide cover 5, a cover body air inlet 51 connecting the heat dissipation cavity 53 with the climbing section, and a cover body air outlet 52 connecting the heat dissipation cavity 53 with the outside world.

[0045] By setting the descending section to include a heat dissipation cavity 53 formed in the air guide hood 5, a hood air inlet 51 connecting the heat dissipation cavity 53 and the climbing section, and a hood air outlet 52 connecting the heat dissipation cavity 53 and the outside world, the air flow moving upward through the climbing section passes through the hood air inlet 51 and then enters the heat dissipation cavity 53, realizing the heat dissipation of the brushless motor 4 and the reduction gear box 3, and then is discharged outward through the hood air outlet 52, realizing effective heat dissipation of the brushless motor 4 and the reduction gear box 3, and can realize the wind gathering effect of the air flow, ensuring that the air flow passes through the reduction gear box 3 and the brushless motor 4, which helps to further improve the heat dissipation effect.

[0046] Furthermore, if Figure 2 、 Figure 4 As shown, the brushless motor 4 includes a motor housing 42 formed with a mounting cavity 421 and a motor body 41 disposed in the mounting cavity 421 . The mounting cavity 421 is communicated with the heat dissipation cavity 53 .

[0047] By configuring the brushless motor 4 to include a motor housing 42 with an installation cavity 421 and a motor body 41 arranged in the installation cavity 421, and the installation cavity 421 is connected to the heat dissipation cavity 53, the airflow entering the heat dissipation cavity 53 can not only dissipate heat on the outer surface of the motor housing 42, but also enter the installation cavity 421 to further dissipate heat for the motor body 41, namely, the rotor and stator and other components, which helps to further improve the heat dissipation effect, reduce the temperature rise of the brushless motor 4, and extend its service life.

[0048] As a preferred embodiment of this embodiment, Figure 2 As shown, the host 2 includes a host housing 21 , a side wall of the host housing 21 is provided with a host air outlet 212 , and the host air outlet 212 is connected to the cover air outlet 52 through an air guide tube 6 .

[0049] By providing a main body air outlet 212 on the side wall of the main body shell 21, and connecting the main body air outlet 212 with the cover body air outlet 52 through the air guide tube 6, when the gas after the brushless motor 4 and the reduction gear box 3 are cooled is discharged outward through the cover body air outlet 52, it can be directly connected with the main body air outlet 212 through the air guide tube 6 and discharged outward through the main body air outlet 212, thereby achieving a guiding effect on the airflow, avoiding the gas discharged outward through the cover body air outlet 52 from scattering in the main body shell 21 and unable to be discharged in time, resulting in internal airflow turbulence, and further causing the heat dissipation effect of each component to deteriorate, thereby ensuring the smoothness of gas flow and improving the heat dissipation efficiency.

[0050] It should be noted that the present application does not specifically limit the shaping of the lower cover air inlet 51 of this embodiment, and it can be any one of the following embodiments:

[0051] Example 1: Figure 2 、 Figure 3 As shown, in this embodiment, the main unit 2 includes a main unit housing 21, the top wall of the main unit housing 21 is provided with a rib 211 extending downward to the outside of the reduction box 3, and the air guide cover 5 is gap-matched with the rib 211 to form a ring-shaped cover air inlet 51.

[0052] By providing a rib 211 extending downward to the outside of the reduction gearbox 3 on the top wall of the main housing 21, and the air guide 5 and the rib 211 are gap-matched to form an annular cover air inlet 51, the rib 211 can not only radially limit the reduction gearbox 3 but also cooperate with the air guide 5 to form the cover air inlet 51, thereby improving the functionality of the rib 211. It also eliminates the need to provide an additional cover air inlet 51 on the air guide 5, helping to improve production efficiency and reduce production costs. At the same time, the annular cover air inlet 51 greatly increases the area of ​​the cover air inlet 51, allowing a large amount of airflow to enter per unit time to dissipate heat from the reduction gearbox 3 and the brushless motor 4, helping to further improve the heat dissipation effect.

[0053] Example 2: In this embodiment, the reduction gearbox 3 is arranged above the brushless motor 4, and the cover body air inlet 51 includes a first air inlet and a second air inlet arranged on the side wall of the air guide cover 5. The first air inlet at least partially overlaps with the reduction gearbox 3 in the horizontal direction, and the second air inlet at least partially overlaps with the brushless motor 4 in the horizontal direction.

[0054] By configuring the cover air inlet 51 to include a first air inlet and a second air inlet provided on the side wall of the air guide cover 5, air can enter the heat dissipation cavity 53 simultaneously through the first air inlet and the second air inlet, which helps to further increase the gas flow rate entering the heat dissipation cavity 53 per unit time, thereby further improving the heat dissipation effect on the brushless motor 4 and the reduction gearbox 3. At the same time, the first air inlet is configured to at least partially overlap with the reduction gearbox 3 in the horizontal direction, and the second air inlet is configured to at least partially overlap with the brushless motor 4 in the horizontal direction, so that the airflow entering the heat dissipation cavity 53 through the first air inlet can directly dissipate heat for the reduction gearbox 3, while the airflow entering the heat dissipation cavity 53 through the second air inlet can directly dissipate heat for the brushless motor 4, thereby achieving synchronous heat dissipation of the two, thereby further improving the heat dissipation effect.

[0055] The technical solutions protected by this utility model are not limited to the above-described embodiments. It should be noted that the combination of the technical solutions of any one embodiment with the technical solutions of one or more other embodiments falls within the scope of protection of this utility model. Although the above description of this utility model has been provided in detail using general instructions and specific embodiments, it is obvious to those skilled in the art that modifications or improvements can be made based on this utility model. Therefore, such modifications or improvements made without departing from the spirit of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A food processor with good heat dissipation effect, comprising a main unit and a detachable processing assembly disposed above the main unit, characterized in that: The host is equipped with a brushless motor, a reduction gearbox connected to the brushless motor, and an IPM module coordinated with the brushless motor. The IPM modules are arranged side by side on the outside of the brushless motor. The host is also provided with a heat dissipation channel connected to the outside. The heat dissipation channel includes an upwardly extending climbing section and a descending section connected to the climbing section and extending downward relative to the climbing section. The IPM module is arranged in the climbing section, and the brushless motor and the reduction gearbox are arranged in the descending section.

2. A food processor with good heat dissipation effect according to claim 1, characterized in that: The reduction box is arranged upstream of the brushless motor in the gas flow path in the descending section, so that the air flow in the descending section first passes through the reduction box and then passes through the brushless motor.

3. A food processor with good heat dissipation effect according to claim 2, characterized in that: An air guide cover is arranged around the outer side of the reduction box and the brushless motor. The air guide cover is provided with an air inlet of the cover body connected to the climbing section and an air outlet of the cover body connected to the outside world. The reduction box is arranged on a side close to the air inlet of the cover body.

4. A food processor with good heat dissipation effect according to claim 3, characterized in that: The reduction box is arranged above the brushless motor, the air inlet of the cover body is arranged on the top side wall of the air guide cover, and the air outlet of the cover body is arranged on the bottom side wall of the air guide cover.

5. The food processor with good heat dissipation effect according to claim 3, characterized in that: The reduction box and the brushless motor are arranged side by side, the air inlet of the cover body is arranged on the top wall of the air guide cover, and the air outlet of the cover body is arranged on the side wall of the air guide cover.

6. A food processor with good heat dissipation effect according to claim 1, characterized in that: An air guide cover is provided around the outer side of the reduction gearbox and the brushless motor. The descending section includes a heat dissipation cavity formed in the air guide cover, an air inlet of the cover connecting the heat dissipation cavity and the climbing section, and an air outlet of the cover connecting the heat dissipation cavity and the outside world.

7. A food processor with good heat dissipation effect according to claim 6, characterized in that: The brushless motor includes a motor housing formed with a mounting cavity and a motor body arranged in the mounting cavity, and the mounting cavity is communicated with the heat dissipation cavity.

8. The food processor with good heat dissipation effect according to claim 6, characterized in that: The host comprises a host housing, a side wall of the host housing is provided with a host air outlet, and the host air outlet is communicated with the cover body air outlet through an air guide tube.

9. The food processor with good heat dissipation effect according to claim 6, characterized in that: The main unit includes a main unit housing, the top wall of the main unit housing is provided with ribs extending downward to the outside of the reduction box, and the air guide cover is gap-matched with the ribs to form a ring-shaped air inlet of the cover.

10. The food processor with good heat dissipation effect according to claim 6, characterized in that: The reduction gearbox is arranged above the brushless motor, and the air inlet of the cover body includes a first air inlet and a second air inlet arranged on the side wall of the wind guide cover. The first air inlet at least partially overlaps with the reduction gearbox in the horizontal direction, and the second air inlet at least partially overlaps with the brushless motor in the horizontal direction.

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