CN109730551B - Low-noise food processor - Google Patents
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- CN109730551B CN109730551B CN201810218286.9A CN201810218286A CN109730551B CN 109730551 B CN109730551 B CN 109730551B CN 201810218286 A CN201810218286 A CN 201810218286A CN 109730551 B CN109730551 B CN 109730551B
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Abstract
The invention discloses a low-noise food processor, which comprises a base with a motor and a circuit board, and a stirring cup connected with the base, locate crushing sword in the stirring cup, the frame includes the casing, top cap and bottom, the bottom is equipped with air intake and air exit, the motor is located the casing, the motor shaft upper end and the crushing sword of motor are connected, the motor shaft lower extreme is equipped with the exhaust fan, air exit department is equipped with the exhaust hood, the exhaust hood includes diapire and lateral wall, the lateral wall of exhaust hood is equipped with the hole of airing exhaust, be equipped with the guide duct on the bottom, the guide duct includes first annular wall and the second annular wall by outer to interior setting, the upper end cover of first annular wall is located the exhaust fan periphery, the lower extreme and the air exit intercommunication of first annular wall, the upper port of second annular wall seals, form annular wind-guiding channel between first annular wall and the second annular wall, be equipped with the aviation baffle in the annular wind-guiding channel. According to the technical scheme of the invention, the noise caused by direct frontal impact of airflow on the table top can be avoided.
Description
Technical Field
The invention belongs to the field of food processing, and particularly relates to a low-noise food processing machine.
Background
Current food preparation machine includes frame and stirring cup usually, is equipped with the motor in the frame to the food of smashing the sword in the drive stirring cup in to the stirring cup is processed, and must continuously generate heat in the motor working process, consequently current food preparation machine all is equipped with heat radiation structure generally, realizes dispelling the heat to the cavity that the frame injectd through heat radiation structure, but the air-out of this kind of heat radiation mechanism is direct air-out downwards, therefore the air current strikes the mesa easily and produces great noise.
Disclosure of Invention
The invention aims to provide a low-noise food processor.
In order to solve the technical problems, the invention provides a low-noise food processing machine, which comprises a machine base with a motor and a circuit board, a stirring cup connected with the machine base, and a crushing cutter arranged in the stirring cup, wherein the machine base comprises a shell, a top cover and a bottom cover, the bottom cover is provided with an air inlet and an air outlet, the motor is positioned in the shell, the upper end of a motor shaft of the motor is connected with the crushing cutter, the lower end of the motor shaft is provided with an exhaust fan, the air outlet is provided with an exhaust hood which comprises a bottom wall and a side wall, the side wall of the exhaust hood is provided with an air outlet, the bottom cover is provided with an air guide cylinder, the air guide cylinder comprises a first annular wall and a second annular wall which are arranged from outside to inside, the upper end of the first annular wall is covered on the periphery of the exhaust fan, the lower end of the first annular wall is communicated with the air outlet, the upper end of the second annular wall is closed, and an annular air guide channel is formed between the first annular wall and the second annular wall, and an air deflector is arranged in the annular air guide channel.
Further, the lower end of the second annular wall is lower than the lower end of the first annular wall.
Further, the lower end of the second annular wall is abutted against the bottom wall of the exhaust hood.
Further, the lower end of the motor shaft is further provided with a fan cover, the fan cover is used for arranging the exhaust fan cover in the fan cover, the bottom of the fan cover is provided with a vent hole, and the upper end of the first annular wall is abutted to the bottom of the fan cover and is located on the periphery of the vent hole.
Furthermore, a sealing ring is arranged at the upper end of the first annular wall and is tightly attached to the bottom of the fan cover.
Furthermore, one end of the air deflector is connected to the first annular wall, and the other end of the air deflector is connected to the second annular wall.
Furthermore, the air deflectors are curved plates and are distributed uniformly around the second annular wall.
Furthermore, the exhaust holes are arc-shaped and are multiple, the exhaust holes are uniformly distributed on the side wall of the exhaust hood around the center of the exhaust hood, and the distribution direction of the exhaust holes is consistent with that of the air deflector.
Further, the circuit board is vertically arranged on one side in the base, the base is divided into an air inlet cavity and an air exhaust cavity by the circuit board, a communicating channel is arranged between the top of the air inlet cavity and the top of the air exhaust cavity, the air inlet is communicated with the air inlet cavity, the air outlet is communicated with the air exhaust cavity, and when the motor works, external air enters the air inlet cavity and enters the air exhaust cavity through the communicating channel.
Further, an air inlet fan is arranged in the air inlet cavity and is close to the air inlet.
The invention has the beneficial effects that:
1. the air outlet is provided with an exhaust hood, the exhaust hood comprises a bottom wall and a side wall, the side wall of the exhaust hood is provided with an exhaust hole, the bottom cover is provided with an air duct, the air duct comprises a first annular wall and a second annular wall which are arranged from outside to inside, the upper end of the first annular wall is covered on the periphery of the exhaust fan, the lower end of the first annular wall is communicated with the exhaust hole, the upper end of the second annular wall is closed, an annular air guide channel is formed between the first annular wall and the second annular wall, an air guide plate is arranged in the annular air guide channel, when the motor works, exhaust air of the exhaust fan flows through the annular air guide channel and is guided into the exhaust hood and then is exhausted from the exhaust hole on the side wall of the exhaust hood, and because the upper end of the second annular wall is closed, the annular air guide channel is a channel which is closed in the middle and is used for guiding air around, namely, no air is exhausted from the middle position of the annular air guide channel, so that the probability of air flow vertically exhausted from the side wall of the exhaust hood is greatly reduced, can guarantee that the most air current is discharged from exhaust hood lateral wall side direction, and then avoided the direct front impact mesa of air current to arouse the noise, adopt the side air-out mode to avoid the air current backward flow to scurry in addition, accelerate the air current circulation like this, can dispel the heat to the frame fast.
2. The lower extreme of second annular wall is less than the lower extreme of first annular wall, has the difference in height between the lower extreme of second annular wall and the lower extreme of first annular wall like this, can be with the air current of guide duct outflow toward the lateral part guide to guarantee most air current side air-out and vertical air-out not, and then can avoid the direct front impact mesa of air current to arouse the noise, but also can effectively take away the heat that the high-speed during operation of motor produced, improved the radiating effect.
3. The diapire butt of the lower extreme of second annular wall and exhaust hood, on the one hand can guarantee that the air current that flows from the ventilating duct is mostly by the guide of second annular wall toward the lateral part, simultaneously, the air current backward flow between exhaust hood diapire and the second annular wall is in disorder scurries and brings the noise can not appear, on the other hand does benefit to the installation firm nature that improves the exhaust hood for deformation or dislocation can not take place for the exhaust hood in the use, and then has guaranteed the normal clear of side air-out.
4. The motor shaft lower extreme still is equipped with the fan casing, and the fan casing is located it with the exhaust fan cover in, and the fan casing bottom is equipped with the ventilation hole, and the upper end and the fan casing bottom butt of first annular wall are located the ventilation hole periphery, so set up, and the exhaust fan combustion air current can get into the annular wind-guiding passageway of air duct completely, and then by leading-in exhaust casing completely.
5. The upper end of first annular wall is equipped with the sealing washer, and the sealing washer hugs closely the fan casing bottom and sets up, and the setting of sealing washer makes the upper end of first annular wall and the sealed intercommunication in fan casing bottom, prevents that the exhaust fan combustion air from flowing and can't leading-in exhaust hood in the junction of the upper end of first annular wall and fan casing bottom.
6. The aviation baffle one end is connected in first annular wall, the aviation baffle other end is connected in the second annular wall, first annular wall and second annular wall pass through the aviation baffle promptly and connect, the aviation baffle is the curved plate and is a plurality of, a plurality of aviation baffles surround second annular wall evenly distributed, the air current that the aviation baffle was derived like this is rotatory air current, rotatory air current does benefit to the lateral wall side discharge from the exhaust hood, and rotatory air current does benefit to the circulation velocity that improves the air current moreover, the circulation of air current has been accelerated, the heat dissipation of the frame of being convenient for.
7. The exhaust hole is the arc and is a plurality of, and a plurality of exhaust holes surround exhaust cover center evenly distributed on the lateral wall of exhaust cover, and exhaust hole distribution direction is unanimous with aviation baffle distribution direction, and the lateral wall of exhaust cover is discharged after the aviation baffle to the exhaust fan combustion gas of being convenient for like this is quick through the guide duct, has further accelerated the air current circulation speed.
8. The circuit board is vertically arranged on one side in the base, the base is divided into an air inlet cavity and an air exhaust cavity by the circuit board, a communicating channel is arranged between the top of the air inlet cavity and the top of the air exhaust cavity, an air inlet is communicated with the air inlet cavity, an air outlet is communicated with the air exhaust cavity, when the motor works, external air enters the air inlet cavity and enters the air exhaust cavity through the communicating channel, air flow in the air exhaust cavity is guided by the annular air guide channel and then is introduced into the exhaust hood, and then is exhausted from the air exhaust hole in the side wall of the exhaust hood, the cooling mechanism is good in cooling effect, cold air and hot air cannot be mixed, and the external air firstly cools the circuit board with relatively low temperature and then cools the motor with relatively high temperature, so that the cooling requirements of the circuit board and the motor can be met simultaneously.
9. The air inlet fan is arranged in the air inlet cavity and is arranged close to the air inlet, so that the air inlet amount can be increased, the flowing speed of air flow in the base is accelerated, and the base can be rapidly cooled.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the stand of FIG. 1;
FIG. 3 is an exploded view of a housing according to a second embodiment of the present invention;
FIG. 4 is a schematic view of an assembly structure of the air duct and the bottom cover according to a second embodiment of the present invention;
FIG. 5 is a front view of FIG. 4;
fig. 6 is a schematic view of an assembly structure of a motor and a top cover in the third embodiment of the present invention;
fig. 7 is an exploded view of fig. 6.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments of the present invention may be arbitrarily combined with each other without conflict.
The structure of the food processor of the invention is shown in figures 1 to 7, comprising a base 1 and a mixing cup 2 connected with the base 1, wherein the base 1 comprises a casing 11, a top cover 12 and a bottom cover 13, the top cover 12 and the bottom cover 13 are respectively arranged at the top and the bottom of the casing 11, a motor 14 and a circuit board 15 are arranged in the base 1, the motor 14 and the circuit board 15 are positioned in the casing 11, the mixing cup 2 comprises a cup body 21 and a cup cover 22, the cup cover 22 and the cup body 21 surround to form a grinding space, one side of the cup body 21 is provided with a handle 211, the cup body 21 is internally provided with a grinding knife 212, the upper end of a motor shaft of the motor 14 is connected with the grinding knife 212, the two are connected through a coupler, the coupler comprises an upper coupler and a lower coupler, the upper coupler is connected with a knife shaft of the grinding knife 212, the lower coupler is connected with the upper end of the motor shaft, when the mixing cup 2 is arranged on the base 1 in place, the upper coupler and the lower coupler are matched and connected, so that the motor 14 can drive the crushing blade 212 to rotate in the crushing space to crush the food. The bottom cover 13 is provided with an air inlet 131 and an air outlet 132, the air outlet 132 is provided with an exhaust hood 3, the exhaust hood 3 is covered below the air outlet 132, the side wall of the exhaust hood 3 is provided with an exhaust hole 31, the lower end of a motor shaft of the motor 14 is provided with an exhaust fan 4, the bottom cover 13 is provided with an air duct 5, the air duct 5 is positioned below the motor 14 and communicated with the air outlet 132, the exhaust fan 4 rotates to generate downward airflow in the operation process of the motor 14, so that negative pressure is formed above the exhaust fan 4, external air is promoted to enter the base 1 from the air inlet 131, the external air enters the base 1 and then enters a cavity where the circuit board 15 is positioned to dissipate heat of the circuit board 15, then enters the cavity where the motor 14 is positioned to dissipate heat of the motor 14 and is finally exhausted by the exhaust fan 4, the airflow exhausted from the exhaust fan 4 drives heat generated when the motor 14 works to flow downward and is exhausted from the exhaust hood 3 through the drainage of the air duct 5, thus, the heat dissipation of the motor 14 and the circuit board 15 in the base 1 is realized.
The first embodiment is as follows:
as shown in fig. 1 and fig. 2, the food processor of this embodiment includes a base 1, a mixing cup 2 connected to the base 1, the base 1 includes a housing 11, a top cover 12 and a bottom cover 13, the top cover 12 and the bottom cover 13 are respectively disposed on the top and the bottom of the housing 11, a motor 14 and a circuit board 15 are disposed in the base 1, the motor 14 and the circuit board 15 are disposed in the housing 11, the mixing cup 2 includes a cup body 21 and a cup cover 22, the cup body 21 is a glass cup and has a handle 211, the cup cover 22 is a plastic cup cover, the cup cover 22 and the cup body 21 surround to form a grinding space, a grinding knife 212 is disposed in the cup body 21, an upper end of a motor shaft of the motor 14 is connected to the grinding knife 212, the upper end of the motor shaft is connected to the grinding knife 212 through a coupling, the coupling includes an upper coupling and a lower coupling, the upper coupling is connected to a knife shaft of the grinding knife 212, the lower coupling is connected to an upper end of the motor shaft, when the mixing cup 2 is disposed on the base 1, the upper and lower couplings are cooperatively coupled such that the motor 14 can drive the crushing blades 212 to rotate within the crushing space to crush food.
In this embodiment, the bottom cover 13 is provided with an air inlet 131 and an air outlet 132, the air inlet 131 is located on one side of the bottom cover 13, the air outlet 132 is located under the motor 14, the air outlet 132 is provided with an exhaust hood 3, the exhaust hood 3 comprises a bottom wall and a side wall, the bottom wall of the exhaust hood 3 is substantially vertically connected with the side wall of the exhaust hood 3, the exhaust hood 3 is covered under the air outlet 132, the side wall of the exhaust hood 3 is provided with an exhaust hole 31, the lower end of a motor shaft of the motor 14 is provided with an exhaust fan 4, the bottom cover 13 is provided with an air duct 5, the air duct 5 comprises a first annular wall 51 and a second annular wall 52 arranged from outside to inside, the first annular wall 51 and the second annular wall 52 are both in a straight cylinder shape, which can directly guide and discharge airflow discharged from the exhaust fan 4 downwards, which is beneficial to the improvement of the ventilation performance of the base 1, the upper end of the first annular wall 51 is covered on the periphery of the fan 4, the lower end of the first annular wall 51 is communicated with the air outlet 132, the upper port of the second annular wall 52 is closed, the lower end of the second annular wall 52 is flush with the lower end of the first annular wall 51 and is abutted against the exhaust hood 3, the bottom wall of the exhaust hood 3 is provided with a support base 32 extending upwards, the support base 32 is abutted against the lower end of the first annular wall 51, an annular air guide channel 53 is formed between the first annular wall 51 and the second annular wall 52, an air guide plate 54 is arranged in the annular air guide channel 53, one end of the air guide plate 54 is connected to the second annular wall 52, and the other end of the air guide plate 54 is spaced from the first annular wall 51, namely, is not in contact with the first annular wall 51.
Thus, the motor 14, the air duct 5 and the exhaust hood 3 form a motor heat dissipation air duct, when the motor 14 works, the exhaust air of the exhaust fan 4 is guided by the annular air guide channel 53 and then is introduced into the exhaust hood 3, and then is exhausted from the exhaust 31 holes of the side wall of the exhaust hood 3, because the upper port of the second annular wall 52 is closed, the annular air guide channel 53 is a channel with the air guide at the periphery closed in the middle, namely, the middle position of the annular air guide channel 53 does not exhaust air, thus greatly reducing the probability of the air flow vertically exhausted from the side wall of the exhaust hood 3, ensuring that most of the air flow is laterally exhausted from the side wall of the exhaust hood 3, further avoiding the noise caused by the direct front impact of the air flow on the table top, and adopting a side air outlet mode to avoid the backflow of the air flow, thus accelerating the air flow circulation and being capable of rapidly dissipating heat to the base 1.
In this embodiment, the lower end of the motor shaft is further provided with a fan cover 6, the fan cover 6 covers the exhaust fan 4 and is arranged in the fan cover 6, the bottom of the fan cover 6 is provided with a vent hole 61, the upper end of the first annular wall 51 is abutted against the bottom of the fan cover 6 and is located on the periphery of the vent hole 61, and thus, the air flow discharged by the exhaust fan 4 can completely enter the annular air guide channel 53 of the air guide cylinder 5 and is completely guided into the exhaust cover 3. The upper end of first annular wall 51 is equipped with sealing washer 7, and sealing washer 7 lower extreme is equipped with the recess, and in the recess was stretched into to the upper end of first annular wall 51, 6 bottoms of fan casing set up are hugged closely to sealing washer 7 upper end, and the setting of sealing washer 7 makes the upper end of first annular wall 51 and the sealed intercommunication in fan casing 6 bottom, prevents that exhaust fan 4 exhaust flow from flowing and unable leading-in exhaust hood 3 in the junction of the upper end of first annular wall 51 and fan casing 6 bottom.
In this embodiment, the air deflectors 54 are curved plates and are multiple, the air deflectors 54 are uniformly distributed around the second annular wall 52, so that the air flow guided out by the air guide duct 54 is a rotating air flow, the rotating air flow is beneficial to being discharged from the side of the exhaust hole 31 of the exhaust hood 3, and the rotating air flow is beneficial to improving the circulation speed of the air flow, thereby accelerating the circulation of the air flow, facilitating the heat dissipation of the base 1, correspondingly, the exhaust holes 31 are arc-shaped and multiple, the exhaust holes 31 are uniformly distributed on the side wall of the exhaust hood 3 around the center of the exhaust hood 3, the distribution direction of the exhaust holes 31 is consistent with the distribution direction of the air deflectors 54, namely, the array arrangement direction is consistent, so that the air flow discharged by the exhaust fan 4 is discharged from the side wall of the exhaust hood 3 after passing through the air guide duct 5, and the air flow circulation speed is further accelerated.
In this embodiment, the circuit board 15 is vertically disposed on one side of the base 1, the base 1 is divided into an air inlet chamber 8 and an air outlet chamber 9 by the circuit board 15, a communication channel is disposed between the top of the air inlet chamber 8 and the top of the air outlet chamber 9, the air inlet 131 is communicated with the air inlet chamber 8, the air outlet 132 is communicated with the air outlet chamber 9, when the motor 14 is in operation, as shown by arrows in fig. 2, the exhaust fan 4 rotates to generate a downward airflow, so that a negative pressure is formed above the exhaust fan 4, to force the external air to enter the base 1 from the air inlet 131, the external air enters the air inlet chamber 8 after entering the base 1, to dissipate heat of the circuit board 15, and then enters the air outlet chamber 9 through the communication channel to dissipate heat of the motor 14, under the action of the exhaust fan 4, the airflow in the air outlet chamber 9 is guided by the annular air guiding channel 53 and then introduced into the exhaust hood 3, and then discharged from the holes 31 on the side wall of the exhaust hood 3, which the heat dissipation mechanism, cold air and hot air can not mix, and the radiating effect is good, and external wind dispels the heat to the lower circuit board 15 of temperature earlier in addition, dispels the heat to the higher motor 14 of temperature relatively again, can satisfy circuit board 15 and motor 14's heat dissipation requirement simultaneously. In order to increase the air intake and further accelerate the flow speed of the air flow in the base 1 to quickly dissipate heat from the base 1, a fan 81 is disposed in the air intake chamber 8, and the fan 81 is disposed near the air inlet 131.
It can be understood that the bottom of the cup body is provided with the heating device, and the heating device can heat the cup body to realize food heating processing.
Example two:
the difference between the first embodiment and the second embodiment is the structure of the air duct and the exhaust hood, as shown in fig. 3 to 5, the joint between the first annular wall 51 of the air duct 5 and the bottom cover 13 has a radian α, that is, the joint between the lower end of the first annular wall 51 and the bottom cover 13 has a radian α, wherein α is greater than or equal to 5 ° and less than or equal to 35 °, α is 15 ° in the present embodiment, and the airflow flowing out of the air duct 5 can be guided to the side portion, thereby preventing most of the airflow from directly impacting the table top to cause noise and airflow backflow, and making the ventilation of the base 1 very smooth. The lower end of the first annular wall 51 extends outwards to form a barrel seat 511, the barrel seat 511 is positioned above the air outlet 132 and fixed on the bottom cover 13 through screws, the first annular wall 51 is installed on the bottom cover 13 through the barrel seat 511, the installation structure enables the first annular wall 51 and the air guide barrel 5 to be detachable, maintenance is convenient, and the barrel seat 511 is formed by outwards extending the lower end of the first annular wall 51, so that the installation structure is simple and low in cost.
In this embodiment, the lower end of the second annular wall 52 is lower than the lower end of the first annular wall 51, so that a height difference H is formed between the lower end of the second annular wall 52 and the lower end of the first annular wall 51, wherein H is not less than 1mm and not more than 20mm, H is 8mm in this embodiment, the air flow flowing out of the air guide duct 5 can be guided to the side portion, so that the air flow is laterally discharged rather than vertically discharged, and further the noise caused by the direct front impact of the air flow on the table top can be avoided, and the heat generated during the high-speed work of the motor can be effectively taken away, so that the heat dissipation effect is improved. The lower extreme of second annular wall 52 and the diapire butt of exhaust hood 3, on the one hand can guarantee that the air current that flows out from air duct 5 is most by the guide of second annular wall 52 toward the lateral part, and simultaneously, the air current backward flow between the diapire of exhaust hood 3 and the second annular wall 52 is scurry indiscriminately and brings the noise can not appear, and on the other hand does benefit to the installation firm nature that improves exhaust hood 3, makes exhaust hood 3 can not take place deformation or dislocation in the use, and then has guaranteed the normal clear of side-blown air.
In the embodiment, one end of the air deflector 54 is connected to the first annular wall 51, and the other end of the air deflector 54 is connected to the second annular wall 52, that is, the first annular wall 51 and the second annular wall 52 are connected by the air deflector 54, and the air deflector 54 is a spiral curved plate, so that the air flow discharged by the exhaust fan 4 is discharged from the air guide cylinder 5 in a spiral manner, the circulation speed of the spiral air flow is higher, the circulation of the air flow is accelerated more, and the smooth ventilation of the base 1 is facilitated. Like this, in the in-process of motor 14 operation, exhaust fan 4 rotates at a high speed and produces decurrent air current, the air current drives the heat that motor 14 during operation produced and flows downwards, the aviation baffle 54 drainage formation spiral air current in the annular air guide channel 53 of exhaust fan 4 combustion gas flow through the aviation baffle of air duct 5, final air current is spiral and discharges from the annular air guide channel 53 of air duct 5 promptly, direct front impact bottom plate has been avoided and noise is aroused, take away the heat that motor 14 produced during high-speed operation simultaneously, the radiating effect is improved, make the ventilation of frame 1 very smooth and easy.
In this embodiment, the first annular wall 51 is tapered, and the first annular wall 51 gradually increases from top to bottom, so that the airflow flowing out from the air duct 5 can be guided to the side portion, thereby preventing most of the airflow from directly impacting the table top to cause noise and airflow backflow, and ensuring smooth ventilation of the base 1.
In the actual work process, air inlet fan 81 starts work, air intake 131 is through inhaling air inlet chamber 8 with outside cold air, the air current gets into air outlet chamber 9 through the intercommunication passageway behind the circuit board 15, exhaust fan 4 rotates at a high speed and makes air current top-down arrange downwards after motor 14, the heat that the air current of downwarding drove motor 14 during operation production flows downwards, at the drainage through the annular wind-guiding passageway 53 of guide duct 5, the air current is spiral and discharges from guide duct 5, the outside of the roughly horizontal discharge bottom 13 of the hole 31 of airing exhaust that is equipped with on the rethread exhaust cover 3, the direct front impact mesa of having avoided arouses the noise.
In this embodiment, the bottom wall of the exhaust hood 3 does not have the above-mentioned supporting seat, the bottom wall of the exhaust hood 3 is directly abutted to the lower end of the second annular wall 52, an angle β is provided between the bottom wall and the side wall of the exhaust hood 3, wherein β is greater than or equal to 100 ° and less than or equal to 150 °, β is 135 ° in this embodiment, it can be ensured that most of the air flow discharged from the exhaust hood 3 is side-discharged, and it is avoided that most of the air flow directly impacts the table top positively to cause noise and air flow backflow, so that the ventilation of the base 1 is very smooth.
It can be understood that the radian α can also be 5 ° or 10 ° or 20 ° or 22 ° or 25 ° or 27 ° or 30 ° or 32 ° or 35 °, as long as the requirement of α being greater than or equal to 5 ° and less than or equal to 35 ° is satisfied, and in this range, the larger the radian α, the more obvious the effect of guiding the air flow to the side portion by the annular air guiding channel is.
It can be understood that the height difference H can also be 1mm, or 3mm, or 5mm, or 7mm, or 9mm, or 11mm, or 13mm, or 15mm, or 17mm, or 19mm, or 20mm, as long as it is satisfied that H is greater than or equal to 1mm and less than or equal to 20mm, and within this range, the larger the value of the height difference H, the more obvious the effect of guiding the air flow to the side portion by the annular air guiding channel is.
It can be understood that the air deflector can also be a spherical panel, an ellipsoidal panel or a non-spiral curved panel, and can achieve the air deflecting effect, and certainly, the spiral curved panel has the best air deflecting effect, the air deflecting speed is high, and the effect of guiding the air flow to the side portion is also good.
It can be understood that the lower end of the first annular wall coincides with the air outlet, and the first annular wall and the bottom cover are integrally formed, so that the first annular wall can be conveniently formed, and a sealing ring does not need to be arranged between the first annular wall and the air outlet.
It is understood that the angle β may also be 100 °, 110 °, 120 °, 130 °, 140 °, or 150 °, as long as the requirement of β being greater than or equal to 100 ° and less than or equal to 150 ° is satisfied, and in this range, the larger the value of the angle β, the better the air outlet effect of the airflow side discharged from the exhaust hood is.
Other structures and advantages of the present embodiment are the same as those of the first embodiment, and are not described herein again.
Example three:
the difference between the present embodiment and the first and second embodiments is the mounting structure of the motor, as shown in fig. 6 and 7, the upper end of the motor 14 is provided with a motor support 141, the motor 14 is fixedly arranged below the top cover 12 through the motor support 141, a distance a is provided between the motor support 141 and the top cover 12, wherein a is not less than 10mm and not more than 30mm, the distance a forms a communication channel for communicating the top of the air intake chamber 8 and the top of the air exhaust chamber 9, a is 18mm in the present embodiment, which can effectively ensure that the airflow flowing through the air intake chamber 8 passes through the motor from top to bottom to dissipate heat of the motor, the bottom cover 13 is provided with a bracket, the bracket is positioned below the motor 14 and abutted against the lower end of the motor 14, so as to support and limit the upper end and the lower end of the motor 14, which can ensure that the motor is not easy to shake during the operation of the whole machine, thereby improving the service life of the motor and simplifying the structure, avoids the complexity of the installation structure, and when the components in the machine base 1 need to be maintained or replaced, maintenance or replacement can be accomplished by simply disassembling the fixed connection between the bottom cover 13 and the cabinet 11 without removing the motor 14, the bracket is integrally formed with the air guide duct 5, the air duct 5 plays a role of a bracket and limits the lower end of the motor 14 to ensure that the motor is not easy to shake in the working process of the whole machine, thereby prolonging the service life of the motor, playing a role of wind guiding, and because the upper port of the second annular wall 52 of the wind guiding cylinder 5 is closed, therefore, the annular air guide channel 53 is a channel with the middle part closed and the periphery closed for guiding air, thereby greatly reducing the probability of vertical exhaust of air flow, thereby avoiding the direct front impact of most air flow on the table-board to cause noise and air flow backflow, and ensuring the smooth ventilation of the machine base 1.
In this embodiment, the top cover 12 is provided with a shaft 121 hole for penetrating the upper end of the motor shaft, the top cover is further provided with a connecting column 122 extending downwards, the motor bracket 141 is fixedly arranged on the connecting column 122 to fixedly arrange the motor 14 below the top cover 12, namely, the motor 14 can be quickly and fixedly arranged below the top cover 12 by the connection of the motor bracket 141 and the connecting column 122, the fixing structure is also very simple, the motor 14 is covered with the motor cover 142, the upper end and the lower end of the motor cover 142 are both open, the motor cover 142 is arranged below the motor bracket 141, the motor cover 142 connects the motor bracket 141 to the connecting column 122, namely, the motor cover 142 is covered outside the motor 14 from bottom to top and is connected with the connecting column 122, the motor bracket 141 is arranged between the motor cover 142 and the connecting column 122 to fixedly arrange the motor 14 below the top cover 12, the installation is convenient, and the height of the lower port of the motor cover 142 is lower than the height of the lower end of the motor 14, motor cover 142 is located it with motor 14 cover completely promptly, the noise to motor 14 carries out the separation, do benefit to and reduce the noise of complete machine operation, and motor cover 142 lower port is the shrink mouth, do benefit to the effect of improving the noise separation of motor 14, effectively reduce the noise of complete machine operation, user's use experience has been promoted, the upper end of first annular wall 51 stretches into behind the motor cover 142 with 6 bottom butts of fan housing and lie in ventilation hole 61 peripherally, and the upper end of first annular wall 51 has horizontal interval with between the motor cover 142, in order to avoid arousing the noise with motor 14 resonance.
In this embodiment, the mounting holes 143 are arranged around the upper port of the motor cover 142, the edge of the motor bracket 141 is provided with the through hole 144, the screw 145 penetrates through the mounting holes 143 from bottom to top, the through hole 144 is connected with the connecting column 122 in a threaded manner, so that the motor bracket 141 is clamped between the connecting column 122 and the motor cover 142, and the screw 145 and the screw are fixed in a matched manner, so that the mounting structure is stable, the separation problem caused by vibration cannot occur in the high-speed operation process, the axial tightness is ensured, the clamping effect is further ensured, and the stable operation of the whole machine in the high-speed operation process is ensured. Be equipped with damping ring 146 in the through-hole 144, damping ring 146 is the big shape in middle little both ends, and damping ring 146's upper end and through-hole upper end are closely laminated, and damping ring 146's lower extreme and through-hole 144 lower extreme are closely laminated, and damping ring 146 comprises elastic material, can compression deformation, have guaranteed the shock attenuation effect to guaranteed the complete machine at high-speed moving in-process even running.
It can be understood that the distance a may also be 10mm, 12mm, 14mm, 16mm, 20mm, 22mm, 24mm, 26mm, 28mm, or 30mm, as long as it satisfies that a is greater than or equal to 10mm and less than or equal to 30mm, and within this range, the larger the value of the distance a, the smoother the flow of the air flow between the air inlet chamber and the air outlet chamber.
Other structures and advantages of the present embodiment are the same as those of the above embodiment, and are not described herein again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, i.e. all equivalent variations and modifications made by the present invention are covered by the scope of the claims of the present invention, which is not limited by the examples herein.
Claims (9)
1. A low-noise food processor comprises a base with a motor and a circuit board, a stirring cup connected with the base, and a crushing cutter arranged in the stirring cup, wherein the base comprises a shell, a top cover and a bottom cover, the bottom cover is provided with an air inlet and an air outlet, the motor is positioned in the shell, the upper end of a motor shaft of the motor is connected with the crushing cutter, the lower end of the motor shaft is provided with an exhaust fan, the low-noise food processor is characterized in that the air outlet is provided with an exhaust hood which comprises a bottom wall and a side wall, the side wall of the exhaust hood is provided with an air outlet, the bottom cover is provided with an air guide tube which comprises a first annular wall and a second annular wall from outside to inside, the upper end of the first annular wall is covered on the periphery of the exhaust fan, the lower end of the first annular wall is communicated with the air outlet, the upper end opening of the second annular wall is closed, and an air guide annular channel is formed between the first annular wall and the second annular wall, and an air deflector is arranged in the annular air guide channel, and the lower end of the second annular wall is abutted against the bottom wall of the exhaust hood.
2. A low noise food processor as defined in claim 1, wherein the lower end of said second annular wall is lower than the lower end of said first annular wall.
3. The low noise food processor as defined in claim 1, wherein a fan housing is further provided at a lower end of the motor shaft, the fan housing houses the exhaust fan therein, a vent hole is provided at a bottom of the fan housing, and an upper end of the first annular wall abuts against the bottom of the fan housing and is located at a periphery of the vent hole.
4. A low noise food processor as defined in claim 3, wherein said first annular wall is provided at an upper end thereof with a sealing ring, said sealing ring being disposed against a bottom of said fan housing.
5. The low noise food processor of claim 1, wherein the air deflector is connected to the first annular wall at one end and to the second annular wall at the other end.
6. The low noise food processor of claim 5, wherein the plurality of louvers are curved, and wherein the plurality of louvers are evenly distributed around the second annular wall.
7. The low noise food processor of claim 6, wherein the plurality of air holes are curved and evenly distributed on the sidewall of the hood around the center of the hood, and the distribution direction of the air holes is consistent with the distribution direction of the air deflector.
8. The low noise food processor as defined in claim 1, wherein said circuit board is vertically disposed at one side of the housing, said circuit board divides the housing into an air intake chamber and an air discharge chamber, a communication passage is provided between a top of the air intake chamber and a top of the air discharge chamber, said air intake opening is communicated with the air intake chamber, said air discharge opening is communicated with the air discharge chamber, and when said motor is operated, the external air enters the air intake chamber and enters the air discharge chamber through the communication passage.
9. The low noise food processor of claim 8, wherein the air intake chamber has an air intake fan disposed therein, the air intake fan being disposed proximate the air intake opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810218286.9A CN109730551B (en) | 2018-03-16 | 2018-03-16 | Low-noise food processor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810218286.9A CN109730551B (en) | 2018-03-16 | 2018-03-16 | Low-noise food processor |
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| CN109730551B true CN109730551B (en) | 2022-03-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114732299B (en) * | 2022-04-01 | 2023-07-07 | 九阳股份有限公司 | Mute food processor |
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| CN109730551A (en) | 2019-05-10 |
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