CN220124566U - Noise-reducing food processor - Google Patents

Abstract

The utility model discloses a noise-reducing food processor, which comprises a host machine and a cup body assembly arranged on the host machine, wherein the host machine is internally provided with a motor, the host machine comprises a lower shell surrounding the motor at the inner side, a heat dissipation air duct is arranged in the lower shell, the host machine is provided with an air inlet and an air outlet which are communicated with the heat dissipation air duct, the motor comprises a stator assembly and a rotor assembly arranged at the inner side of the stator assembly, a sealing element is arranged between the lower shell and the stator assembly, and air flowing in from the air inlet flows to the stator assembly and the rotor assembly at the inner side of the sealing element under the blocking effect of the sealing element. According to the utility model, the sealing element is arranged between the lower shell and the stator assembly, so that when a gap exists between the lower shell and the stator assembly, cold air can only cool the stator assembly when flowing through the gap, and heat cannot be effectively dissipated to the inner rotor assembly, namely, a cold air flowing path can be improved by virtue of the effect of the sealing element, so that the cold air can be fully focused to the rotor assembly after entering the lower shell from the air inlet, and the heat dissipation effect of the rotor assembly is improved.

Description

Noise-reducing food processor

Technical Field

The utility model relates to the field of food processors, in particular to a noise-reducing food processor.

Background

The existing food processor generally comprises a host machine and a cup body assembly arranged on the host machine, wherein a motor is arranged in the host machine, a motor cover is arranged on the outer side of the motor, and the heat dissipation process of the motor is as follows: the air flows into the motor cover from the upper side of the motor cover, after radiating the heat of the motor, the air carrying the heat is discharged from the lower side of the motor cover. The motor includes motor shaft, rotor subassembly and stator module from inside to outside, exists great clearance between motor cover and the motor stator module in the current scheme, after the motor cover of air inflow, and some air is direct to flow along the clearance between motor cover and the stator module, and can't dispel the heat to inboard rotor module effectively, leads to rotor module temperature high, is unfavorable for its life's extension, and leads to motor radiating efficiency low.

In the related art, the prior art CN214341940U discloses a food processor, which enhances the heat dissipation effect by improving the structure of the motor cover and optimizing the cooperation of the motor cover and the motor, however, a radial gap still exists between the motor cover and the motor, so that a part of air still flows through the radial gap, only the heat dissipation to the outer stator can be achieved, and the heat dissipation to the inner rotor is weakened; moreover, the proportional relation between the flanging caliber of the motor cover and the motor size is required to be strictly controlled, and the processing requirement on the motor cover is high, so that the production cost is increased.

Disclosure of Invention

In order to solve the technical problem that a rotor cannot be cooled effectively when a motor dissipates heat in the prior art, the utility model provides a noise-reduction food processor, and an airflow flow path is optimized by optimizing the relation between a related structure of a host and the motor, so that the heat dissipation of a rotor assembly is enhanced, and the problem that the cooling effect of the rotor assembly is poor is solved.

The utility model discloses a noise-reducing food processor, which comprises a host machine and a cup body assembly arranged on the host machine, wherein a motor is arranged in the host machine, the host machine comprises a lower shell surrounding the motor on the inner side, a heat dissipation air duct is arranged in the lower shell, the host machine is provided with an air inlet and an air outlet which are communicated with the heat dissipation air duct, the motor comprises a stator assembly and a rotor assembly arranged on the inner side of the stator assembly, a sealing element is arranged between the lower shell and the stator assembly, and air flowing in from the air inlet flows to the stator assembly and the rotor assembly on the inner side of the sealing element under the barrier action of the sealing element.

The noise-reducing food processor of the utility model also has the following additional technical characteristics:

the sealing piece is sleeved on the peripheral wall of the stator assembly; the sealing element is provided with a first protruding part extending horizontally, and the first protruding part is clamped between the lower shell and the stator assembly.

The motor comprises a motor upper bracket, the sealing element is provided with a second protruding part which extends vertically, and the second protruding part is clamped between the motor upper bracket and the stator assembly.

The sealing element is provided with a third protruding part which extends vertically, the third protruding part and the second protruding part extend reversely, and the third protruding part is coated on the outer surface of the stator assembly.

The host computer still include with the upper cover of lower casing lock connection, the motor includes the motor upper bracket, the motor upper bracket with upper cover fixed connection.

And a damping piece is arranged between the upper motor bracket and the upper cover.

The air inlet is arranged on the upper cover, and the air outlet is arranged on the lower shell.

The food processor further comprises a cooling fan, a wind collecting cavity communicated with the cooling air duct is arranged in the lower shell, the cooling fan is arranged in the wind collecting cavity, and an air guiding surface extending obliquely downwards is arranged on the inner side wall of the upper end of the wind collecting cavity.

An air outlet part extending outwards is arranged on one side of the lower shell, an air outlet channel is formed in the air outlet part, one end of the air outlet channel is communicated with the heat dissipation channel, an air outlet is formed at the other end of the air outlet channel, and a silencing hole is formed in the air outlet part; the air outlet air duct is a curved air duct.

The upper cover comprises an upper cover main body and an extension part protruding upwards relative to the upper cover main body, a through hole is formed in the center of the extension part, a motor shaft of the motor extends upwards out of the through hole, and an air inlet is further formed in the extension part.

By adopting the technical scheme, the utility model has the following beneficial effects:

1. according to the noise-reducing food processor, the sealing piece is arranged between the lower shell and the stator assembly, so that when a gap exists between the lower shell and the stator assembly, cold air can only cool the stator assembly when flowing through the gap, and heat cannot be effectively dissipated to the inner rotor assembly.

Because the sealing member only seals the gap between the lower shell and the stator assembly at a certain position, cold air can still radiate the stator assembly in the flowing process of the cold air along the radiating air duct, and the requirement of cooling the stator assembly can be met.

2. As a preferred embodiment, the sealing member is sleeved on the outer peripheral wall of the stator assembly; the sealing element is provided with a first protruding part which extends horizontally, and the first protruding part is clamped between the lower shell and the stator assembly; therefore, when the machine is assembled, the sealing element can be sleeved on the outer side of the stator assembly, and then the structural part formed by the sealing element and the stator assembly is assembled into the lower shell, so that the operation is simple and easy to implement; and the first protruding part is clamped between the lower shell and the stator assembly, so that the assembling firmness of the sealing element can be improved, and the gap between the lower shell and the stator assembly is filled by the first protruding part, so that the loss caused by cold air flowing through the stator assembly can be prevented, the effective heat dissipation of the inner rotor assembly is ensured, and the cold air utilization rate is improved.

3. As a preferred embodiment, the motor comprises a motor upper bracket, the sealing element is provided with a second protruding part which extends vertically, and the second protruding part is clamped between the motor upper bracket and the stator assembly; therefore, the sealing element is further clamped with the stator assembly through the upper motor bracket, the mounting firmness of the sealing element can be improved, the sealing effect is optimized, the cold air loss is reduced, and the heat dissipation efficiency is improved.

4. As a preferred embodiment, the sealing element is provided with a third protruding part extending vertically, the third protruding part extends reversely to the second protruding part, and the third protruding part is coated on the outer surface of the stator assembly; therefore, through the arrangement of the third protruding part, the joint effect of the sealing element and the outer surface of the stator assembly can be enhanced by the cooperation of the third protruding part and the outer surface of the stator assembly, and the loss of cold air from the position caused by the formation of gaps between the sealing element and the stator assembly when the sealing element is too loose can be prevented, so that the heat dissipation effect on the rotor assembly is weakened.

5. As a preferred embodiment, the host also comprises an upper cover which is buckled and connected with the lower shell, the motor comprises a motor upper bracket, and the motor upper bracket is fixedly connected with the upper cover; therefore, the upper cover and the lower shell are enclosed to form a closed heat dissipation air channel, so that the internal and external air exchange is optimized, the heat dissipation effect is ensured, and meanwhile, the upward outgoing of the working noise of the motor is prevented, and the noise reduction is optimized. And moreover, the top of the upper cover can provide a cup body assembly placing space, so that a user can conveniently take and place the cup body from the host machine.

Preferably, a damping piece is arranged between the upper bracket of the motor and the upper cover; through setting up the shock attenuation piece, can prevent on the one hand that motor vibration from upwards transmitting to avoid arousing the structure of top to take place resonance, and increase machine operational noise, on the other hand shock attenuation piece itself can absorb a part of noise for flexible structure, therefore can increase the purpose of making an uproar that falls.

Preferably, the air inlet is arranged on the upper cover, and the air outlet is arranged on the lower shell; therefore, cold air can directly flow into the lower shell from the upper end of the main machine, and hot air is discharged from the air outlet after the motor radiates heat, so that cold air and hot air exchange is smooth and free, and the heat radiation effect is improved.

6. As a preferred embodiment, the food processor further comprises a cooling fan, the lower housing is internally provided with a wind collecting cavity communicated with the cooling air duct, the cooling fan is arranged in the wind collecting cavity, and the inner side wall of the upper end of the wind collecting cavity is provided with a wind guiding surface extending obliquely downwards; therefore, by arranging the heat radiation fan, the circulation of the internal and external air can be quickened, thereby being beneficial to improving the heat radiation efficiency; and under the action of the air suction of the cooling fan and the guiding of the hot air flow by the air guide surface, the hot air can flow into the air collecting cavity more quickly and fully and then is discharged through the air outlet, so that the heat dissipation efficiency can be improved, and the inclined air guide surface can reduce the collision of the air flow at the position, so that the noise caused by the collision can be reduced, and the noise reduction is optimized.

7. As a preferred embodiment, one side of the lower casing is provided with an air outlet part extending outwards, an air outlet channel is formed in the air outlet part, one end of the air outlet channel is communicated with the heat dissipation channel, the other end of the air outlet channel forms an air outlet, and the air outlet part is provided with a silencing hole; the air outlet air duct is a curved air duct; therefore, by arranging the silencing holes, the wind noise can be reduced in the process of discharging the air flow along the air outlet air duct, so that the noise transmitted to the outside is reduced, and the user experience is pleasant; and the air outlet air duct is set to be a curved air duct, so that the noise propagation path is prolonged, the noise can be effectively attenuated, and the noise reduction effect is improved.

8. As a preferred embodiment, the upper cover comprises an upper cover main body and an extension part protruding upwards relative to the upper cover main body, a through hole is formed in the center of the extension part, a motor shaft of the motor extends upwards out of the through hole, and an air inlet is formed in the extension part; through setting up the extension, its upper end molding of adaptation motor to in satisfying and making the motor hold the space that upper cover and lower casing surrounded, and the axial space that the extension provided provides the condition for motor and crushing sword subassembly are connected, and the air intake locates the extension and can make air intake and inside motor formation difference in height, is favorable to cold wind to blow in and dispel the heat to the motor at the flow in-process, has guaranteed the reliability of inside and outside air current exchange.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

fig. 1 is an exploded view of the components of the main frame of a food processor in accordance with one embodiment of the present utility model.

Fig. 2 is a schematic view of the assembly of a seal with a motor in accordance with one embodiment of the present utility model.

Fig. 3 is a schematic view of the motor and cover assembly of fig. 2.

Fig. 4 is a schematic cross-sectional view of the motor and cover of fig. 3 after assembly.

Fig. 5 is a schematic view of the structural member of fig. 4 assembled with the lower housing.

FIG. 6 is a schematic cross-sectional view of a host and internal structure and a schematic airflow diagram according to an embodiment of the present utility model.

Reference numerals:

10-a main machine, 11-a motor, 12-a lower shell, 13-a stator assembly, 14-a rotor assembly, 101-an air inlet, 102-an air outlet, 15-a motor upper bracket, 151-an annular bracket, 16-an upper cover, 152-an installation gap, 153-a damping piece, 161-an installation groove, 17-a cooling fan, 121-an air collecting cavity, 122-an air guiding surface, 123-an air outlet part, 124-a silencing hole, 162-an upper cover main body, 163-an extension part and 164-a through hole;

20-seal, 21-first boss, 22-second boss, 23-third boss.

Detailed Description

In order to more clearly illustrate the general inventive concept, reference will be made in the following detailed description, by way of example, to the accompanying drawings.

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than as described herein, and therefore the scope of the present utility model is not limited by the specific embodiments disclosed below.

In addition, in the description of the present utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. However, it is noted that direct connection indicates that two connected bodies are not connected through a transition structure, but are connected through a connection structure to form a whole. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1 to 6, the present utility model provides a noise-reducing food processor, comprising a main machine 10 and a cup assembly mounted on the main machine 10, wherein a motor 11 is disposed in the main machine 10, the main machine 10 comprises a lower housing 12 surrounding the motor 11 inside, a heat dissipation air duct is disposed in the lower housing 12, the main machine 10 is provided with an air inlet 101 and an air outlet 102 communicated with the heat dissipation air duct, the motor 11 comprises a stator assembly 13 and a rotor assembly 14 disposed inside the stator assembly 13, a sealing member 20 is mounted between the lower housing 12 and the stator assembly 13, and air flowing from the air inlet 101 flows to the stator assembly 13 and the rotor assembly 14 inside the sealing member 20 under the barrier action of the sealing member 20.

In the prior art, a large radial gap exists between the motor cover and the motor, cold air flows along the gap between the motor cover and the motor in the motor cooling process, only the stator of the motor outer ring can be cooled, the cooling effect on the inner rotor is very weak, the temperature of the rotor is high, and the service performance and the service life of the rotor are influenced.

In comparison, as shown in fig. 1 and 6, in the case of adding the sealing member 20, when the motor of the present utility model dissipates heat, the flow path of the air flow is: after cold air flows into the host machine from the air inlet 101, the cold air can be fully focused on the corresponding position of the rotor assembly 14, and then the cold air can be fully cooled on the rotor assembly 14 in the flowing process of the cold air along the cooling air duct, so that the cooling effect of the rotor assembly 14 is improved; finally, the hot air is discharged from the air outlet 102. Because the sealing piece 20 only seals the gap between the lower shell 12 and the stator assembly 13 at a certain position, the stator assembly 13 can still be cooled in the process of cold air flowing along the cooling air duct, and the requirement of cooling the stator assembly 13 can be met.

Wherein, lower casing 12 wraps up motor 11 in, and lower casing 12 can play the effect of motor cover to realize the motor heat dissipation through inside wind channel structure, provide the shielding effect to motor operational noise simultaneously, reduce the noise size that passes outside. In the prior art, the motor is arranged in the motor cover, and the motor is arranged in the main machine shell, in a preferred embodiment of the utility model, only one layer of structure of the lower shell 12 is arranged, so that the number of structural parts can be reduced, the configuration of the food processor can be simplified, and meanwhile, the assembly can be simplified. The lower shell 12 is internally provided with a heat dissipation air duct which is arranged along the circumferential ring cloth of the motor so as to ensure that cold air can flow through each region of the motor.

As a preferred embodiment of the present utility model, the seal 20 is fitted over the outer peripheral wall of the stator assembly 13; the seal 20 is provided with a horizontally extending first boss 21, the first boss 21 being sandwiched between the lower housing 12 and the stator assembly 13.

When the main machine 10 and the motor 11 are assembled, the sealing element 20 can be sleeved on the outer side of the stator assembly 13, and then structural members formed by the sealing element and the motor are assembled into the lower shell 12, so that the operation is simple and easy to implement; and the first protruding part 21 is clamped between the lower shell 12 and the stator assembly 13, so that the assembling firmness of the sealing element 20 can be improved, and the gap between the lower shell 12 and the stator assembly 13 is filled by the first protruding part 21, so that the loss caused by cold air flowing through the stator assembly 13 can be prevented, the effective heat dissipation of the inner rotor assembly 14 is ensured, and the cold air utilization rate is improved.

As shown in fig. 1, the seal 20 is an annular structural member that can be sleeved with the motor 11. Typically, the upper end of the motor 11 is provided with a motor upper bracket 15, so that the volume of the upper end of the motor 11 is larger than the volume of the lower end of the motor 11, and for convenience in installing the sealing member 20, as shown in fig. 2, the motor 11 may be placed upside down and then the sealing member 20 is sleeved from the lower end of the motor 11. Subsequently, the lower casing 12 is covered outside the motor 11, and when the lower casing 12 is installed in place, the first protruding part 21 is clamped between the relevant part of the lower casing 12 and the stator assembly 13 along the horizontal direction, so that the first protruding part 21 can block the gap between the stator assembly 13 at the upper end of the motor and the lower casing 12, and cold air is reduced from flowing through the position.

Further, the motor 11 includes a motor upper bracket 15, and the sealing member 20 is provided with a second protruding portion 22 extending vertically, and the second protruding portion 22 is sandwiched between the motor upper bracket 15 and the stator assembly 13.

Specifically, the motor 11 is fixed on the motor upper bracket 15, the motor upper bracket 15 includes a ring bracket 151 surrounding the outer side of the motor 11, and a mounting gap 152 is formed between the ring bracket 151 and the stator assembly 13, as shown in fig. 2, when the sealing member 20 is sleeved downwards, the second protruding portion 22 can be embedded into the mounting gap 152, so as to strengthen the mounting of the sealing member 20. Preferably, the second boss 22 is in interference fit with the mounting gap 152 to ensure the reliability of the mounting of the seal 20, thereby ensuring the sealing effect of the seal 20 against the gap between the lower housing 12 and the stator assembly 13.

Further, the sealing member 20 is provided with a third protruding portion 23 extending vertically, the third protruding portion 23 extends reversely to the second protruding portion 22, and the third protruding portion 23 is coated on the outer surface of the stator assembly 13.

By arranging the third protruding portion 23, the third protruding portion 23 and the second protruding portion 22 cooperate with the outer surface of the stator assembly 13 together, so that the attaching effect of the sealing element 20 and the outer surface of the stator assembly 13 can be enhanced, and the loss of cold air from the position caused when a gap is formed between the sealing element 20 and the stator assembly 13 when the sealing is too loose can be prevented, so that the heat dissipation effect on the rotor assembly 14 is weakened.

As a preferred embodiment of the present utility model, the host 10 further includes an upper cover 16 fastened to the lower housing 12, and the motor 11 includes a motor upper bracket 15, where the motor upper bracket 15 is fixedly connected to the upper cover 16.

The upper cover 16 and the lower shell 12 are enclosed to form a closed heat dissipation air channel so as to optimize the exchange of internal air and external air, ensure the heat dissipation effect, and simultaneously prevent the working noise of the motor from being transmitted upwards so as to optimize noise reduction. In addition, the top of the upper cover 16 can provide a cup assembly placing space, so that a user can conveniently take and place the cup from the host machine.

As shown in fig. 2 to 5, in the assembly, the sealing member 20 is first sleeved on the outer side of the stator assembly 13, then the structural member formed by the sealing member and the upper cover 16 is assembled, and finally the lower housing 12 is sleeved. The motor upper bracket 15 includes a ring bracket 151 surrounding the outer side of the motor 11, and the ring bracket 151 and the upper cover 16 may be engaged by means of, for example, screw connection, snap connection, or the like.

It will be appreciated that the order of assembly of the above components is not limiting to the utility model, and that the assembly may be performed in other orders, for example, after the sealing member 20 is sleeved on the outer side of the stator assembly 13, the structural members formed by the two are assembled into the lower housing 12 from the top of the lower housing 12, and finally the upper cover 16 is covered. In this case, the motor may be fixed to the inside of the lower case 12 through the motor upper bracket 15, and thus, the fixing of the upper cover 16 to the motor upper bracket 15 may be omitted, and after the upper cover 16 is covered, the upper cover 16 is screw-coupled to the lower case 12.

Preferably, a shock absorbing member 153 is provided between the motor upper bracket 15 and the upper cover 16.

Through setting up shock absorber 153, can prevent on the one hand that motor vibration from upwards transmitting to avoid arousing the structure of top and take place resonance, and increase machine operational noise, on the other hand shock absorber 153 itself is flexible structure and can absorb a portion of noise, therefore can increase the purpose of making an uproar that falls.

As shown in fig. 1 and 3, four azimuth angles of the ring bracket 151 are provided with four shock absorbing members 153, and the upper cover 16 is provided with a mounting groove 161, and the shock absorbing members 153 may be accommodated in the mounting groove 161. The damper 153 is, for example, a silica gel damper.

As a preferred embodiment of the present utility model, the air inlet 101 is provided at the upper cover 16, and the air outlet 102 is provided at the lower case 12.

As shown in fig. 1, in this embodiment, the air flows in from the upper part of the main unit and out from the lower part of the main unit, so that smooth and free exchange of the air flow inside and outside the main unit can be ensured, and the heat dissipation effect can be ensured. Specifically, the air inlet 101 is disposed above the sealing member 20, and cold air can flow directly to the rotor assembly 14 after flowing in from the air inlet 101, so as to ensure the cooling effect on the rotor assembly 14.

As a preferred embodiment of the present utility model, the food processor further includes a cooling fan 17, a wind collecting cavity 121 communicating with the cooling air duct is disposed in the lower housing 12, the cooling fan 17 is disposed in the wind collecting cavity 121, and an air guiding surface 122 extending obliquely downward is disposed on an inner side wall of an upper end of the wind collecting cavity 121.

By arranging the heat radiation fan 17, the internal and external air circulation can be quickened, thereby being beneficial to improving the heat radiation efficiency; in addition, under the action of the air suction of the cooling fan 17 and the guiding of the hot air by the air guiding surface 122, the hot air can flow into the air collecting cavity 121 more quickly and fully and then is discharged through the air outlet 102, so that the heat dissipation efficiency can be improved, and the inclined air guiding surface 122 can reduce the collision of the air flow at the place, so that the noise caused by the collision can be reduced, and the noise reduction is optimized.

The installation method of the heat radiation fan 17 is not particularly limited, and any of the following methods may be employed, for example. In one embodiment, the cooling fan 17 is connected to the lower end of the motor shaft of the motor, and the cooling fan 17 and the motor 11 may form an integral structural member, and may be integrally installed in the lower housing 12 during assembly. In another embodiment, the heat dissipation fan 17 is installed in the lower housing 12, and in this embodiment, the heat dissipation fan 17 may be driven by the motor 11, and other driving structures may be provided to drive the heat dissipation fan 17.

As shown in fig. 6, the air collecting cavity 121 is arranged in a reduced diameter relative to the inner space at the upper end of the lower housing 12, so as to guide the hot air carrying the heat of the motor to gather in the air collecting cavity 121 in a small range and then throw out the hot air by means of the action of the cooling fan 17, so that the hot air discharging effect can be optimized, the hot air flowing in the host machine can be avoided as much as possible, and the heat dissipation effect can be optimized. The included angle between the inclined plane and the vertical plane formed by the air guiding surface 122 is greater than 90 degrees, preferably 120 degrees, but may be other values, for example, any value between 110 degrees and 120 degrees, etc.

As a preferred embodiment of the present utility model, an air outlet 123 extending outwards is provided at one side of the lower housing 12, an air outlet duct is formed in the air outlet 123, one end of the air outlet duct is communicated with the heat dissipation duct, an air outlet 102 is formed at the other end of the air outlet duct, and a silencing hole 124 is provided on the air outlet 123.

As shown in fig. 1, by providing the air outlet portion 123, the vertical heat dissipation air duct and the horizontally extending air outlet air duct form a bending air duct, and in the process of exhausting the air flow along the bending air duct, the air noise is reduced, so that the working noise of the machine is reduced. In one embodiment, the lower casing 12 has an open upper end and a closed lower end, so that the bottom wall of the lower casing 12 can be enclosed with the air outlet 123 to form an air outlet duct, which is beneficial to simplifying the configuration and assembly of the host. In another embodiment, the lower casing 12 is a vertically penetrating structure, and the host 10 further includes a base disposed at the bottom of the lower casing 12, where the base and the air outlet 123 enclose an air outlet duct.

Through set up amortization hole 124 on the wall of air-out portion 123, the air current is along the exhaust in-process of air-out wind channel, can reduce wind noise, is favorable to reducing the noise size that passes outside, pleasant user experience. Preferably, as shown in fig. 1, the silencing hole 124 is disposed on the top wall of the air outlet 123 and located at the front side of the air outlet 102 (i.e. the airflow passes through the silencing hole 124 first). The plurality of sound deadening holes 124 may be provided, and the plurality of sound deadening holes 124 may be arranged in a certain shape. The aperture of the sound deadening hole 124 is set according to the actual requirement, and it is preferable to enhance the noise reduction effect as much as possible. It is understood that the sound deadening hole 124 is not limited to be provided on the top wall of the air outlet portion 123, but may be provided on the side wall of the air outlet portion 123.

Further preferably, the air outlet duct is a curved duct. The adoption of the curved air duct is beneficial to prolonging the propagation path of noise, can effectively attenuate the noise and improves the noise reduction effect. In one embodiment, the air outlet air duct is a snake-shaped air duct, an S-shaped air duct and the like, so that the air flow path can be prolonged, and the silencing and noise reduction are facilitated by continuously changing the air flow direction. In another embodiment, as shown in fig. 1, the air outlet duct is gradually reduced in height along the air flow discharging direction, and the air noise at the air outlet 102 can be weakened under the premise of ensuring a certain air outlet quantity.

In the above scheme provided with the upper cover 16, further, the upper cover 16 includes an upper cover main body 162 and an extension part 163 protruding upwards relative to the upper cover main body 162, a through hole 164 is provided in the center of the extension part 163, the motor shaft of the motor 11 extends upwards out of the through hole 164, and the extension part 163 is further provided with the air inlet 101.

Through setting up extension 163, it can adapt to the upper end molding of motor 11 to satisfy and make motor 11 hold in the space that upper cover 16 and lower casing 12 surrounded, and the axial space that extension 163 provided provides the condition for motor 11 is connected with crushing sword subassembly, and air intake 101 locates extension 163 and can make air intake 101 and inside motor 11 form certain difference in height, is favorable to cold wind to blow in and dispel the heat to motor 11 in the flow process, has guaranteed the reliability of inside and outside air current exchange.

As shown in fig. 1 and 6, the through hole 164 is provided with an annular wall extending upward or downward from the through hole 164, which can provide a receiving space for fittings of the motor shaft, such as a bearing or a coupling, etc., and provide a reliable installation of the motor and the pulverizing system above.

The technical solution protected by the present utility model is not limited to the above embodiments, and it should be noted that, the combination of the technical solution of any one embodiment with the technical solution of the other embodiment or embodiments is within the scope of the present utility model. While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

Claims (10)

1. The noise-reducing food processor comprises a main machine and a cup body assembly arranged on the main machine, wherein a motor is arranged in the main machine,

the motor comprises a stator assembly and a rotor assembly arranged on the inner side of the stator assembly, a sealing element is arranged between the lower shell and the stator assembly, and air flowing in from the air inlet flows to the stator assembly and the rotor assembly on the inner side of the sealing element under the blocking effect of the sealing element.

2. A noise reducing food processor according to claim 1, wherein,

the sealing piece is sleeved on the peripheral wall of the stator assembly; the sealing element is provided with a first protruding part extending horizontally, and the first protruding part is clamped between the lower shell and the stator assembly.

3. A noise reducing food processor according to claim 1 or 2, characterized in that,

the motor comprises a motor upper bracket, the sealing element is provided with a second protruding part which extends vertically, and the second protruding part is clamped between the motor upper bracket and the stator assembly.

4. A noise reducing food processor according to claim 3, wherein,

the sealing element is provided with a third protruding part which extends vertically, the third protruding part and the second protruding part extend reversely, and the third protruding part is coated on the outer surface of the stator assembly.

5. A noise reducing food processor according to claim 1, wherein,

the host computer still include with the upper cover of lower casing lock connection, the motor includes the motor upper bracket, the motor upper bracket with upper cover fixed connection.

6. A noise reducing food processor according to claim 5, wherein,

and a damping piece is arranged between the upper motor bracket and the upper cover.

7. A noise reducing food processor according to claim 5, wherein,

the air inlet is arranged on the upper cover, and the air outlet is arranged on the lower shell.

8. A noise reducing food processor according to claim 1, wherein,

the food processor further comprises a cooling fan, a wind collecting cavity communicated with the cooling air duct is arranged in the lower shell, the cooling fan is arranged in the wind collecting cavity, and an air guiding surface extending obliquely downwards is arranged on the inner side wall of the upper end of the wind collecting cavity.

9. A noise reducing food processor according to claim 1, wherein,

an air outlet part extending outwards is arranged on one side of the lower shell, an air outlet channel is formed in the air outlet part, one end of the air outlet channel is communicated with the heat dissipation channel, an air outlet is formed at the other end of the air outlet channel, and a silencing hole is formed in the air outlet part;

the air outlet air duct is a curved air duct.

10. A noise reducing food processor according to claim 5, wherein,

the upper cover comprises an upper cover main body and an extension part protruding upwards relative to the upper cover main body, a through hole is formed in the center of the extension part, a motor shaft of the motor extends upwards out of the through hole, and an air inlet is further formed in the extension part.