CN109864620B - Food processor with good heat dissipation effect - Google Patents
Food processor with good heat dissipation effect Download PDFInfo
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- CN109864620B CN109864620B CN201810878236.3A CN201810878236A CN109864620B CN 109864620 B CN109864620 B CN 109864620B CN 201810878236 A CN201810878236 A CN 201810878236A CN 109864620 B CN109864620 B CN 109864620B
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Abstract
The invention discloses a food processor with good heat dissipation effect, which comprises a machine base with a motor, a stirring cup connected with the machine base, and a crushing cutter arranged in the stirring cup, wherein the upper end of a motor shaft of the motor is connected with the crushing cutter, a motor cylinder for accommodating the motor is arranged in the machine base, the motor cylinder comprises a cylinder body and a cylinder cover positioned at the top of the cylinder body, a first shaft hole penetrating through the upper end of the motor shaft is arranged on the cylinder cover, a motor bracket is arranged at the upper end of the motor, the motor bracket is arranged at the top of the cylinder body and positioned below the cylinder cover, and the cylinder cover and the motor bracket are fixed at the top of the cylinder body through fasteners. According to the technical scheme, the heat dissipation efficiency of the motor can be improved, and the service life of the motor is further prolonged.
Description
Technical Field
The invention belongs to the field of food processors, and particularly relates to a food processor with good heat dissipation effect.
Background
The current food processing machine, like cooking machine, juice extractor etc. is equipped with the motor including frame and processing part in the frame generally to drive processing part to process food, and the motor in-process can necessarily continue to generate heat, consequently need dispel the heat to the motor, but the cooling system of current motor is too open, makes the differential pressure that the motor fan convulsions formed too little, and the wind speed to the motor carries out radiating cooling wind is less, and the result of bringing like this is: 1. the service life of the motor is influenced by the fact that the temperature of the motor is excessively high; 2. or in order to increase the temperature of the motor and ensure the service life to be qualified, the motor model is increased or the insulation grade of the motor is improved, so that the cost of the motor is increased. Therefore, the motor of the existing food processor has quite unsatisfactory heat dissipation effect.
Disclosure of Invention
The invention aims to provide a food processor with good heat dissipation effect.
In order to solve the technical problems, the invention provides a food processor with good heat dissipation effect, which comprises a machine base provided with a motor, a stirring cup connected with the machine base, and a crushing cutter arranged in the stirring cup, wherein the upper end of a motor shaft of the motor is connected with the crushing cutter, a motor cylinder for accommodating the motor is arranged in the machine base, the motor cylinder comprises a cylinder body and a cylinder cover positioned at the top of the cylinder body, a first shaft hole penetrating through the upper end of the motor shaft is arranged on the cylinder cover, a motor support is arranged at the upper end of the motor, the motor support is arranged at the top of the cylinder body and positioned below the cylinder cover, and the cylinder cover and the motor support are fixed at the top of the cylinder body through fasteners.
Further, the cylinder cover covers the top of the cylinder body.
Further, the outer side wall of the cylinder body is provided with a limiting step, and the limiting step is abutted to the bottom of the cylinder cover.
Further, the outer side wall of the cylinder body is provided with a first guide part, the outer side wall of the cylinder cover is provided with a second guide part, and the second guide part is covered on the first guide part.
Further, the first guide part is formed by outwards protruding the outer side wall of the cylinder body, and the second guide part is formed by outwards protruding the outer side wall of the cylinder cover.
Further, a communication port communicated with the inside of the stand is arranged at the upper part of the motor cylinder.
Further, the communication port is positioned on the cylinder cover.
Further, the motor cylinder further comprises a cylinder seat positioned at the bottom of the cylinder body, a second shaft hole is formed in the center of the cylinder seat, a fan is arranged at the lower end of the motor shaft, and the lower end of the motor shaft penetrates through the second shaft hole and then is connected with the fan.
Further, the machine base comprises a machine shell and a bottom cover positioned at the bottom of the machine shell, and the cylinder base is arranged on the bottom cover.
Further, the cylinder seat and the bottom cover are integrally formed.
The beneficial effects of the invention are as follows:
1. the motor cylinder includes the stack shell and is located the stack shell top, be equipped with the first shaft hole that the motor shaft upper end runs through on the stack shell, the motor upper end is equipped with the motor support, the motor support is arranged in the stack shell top and is located the stack shell below, stack shell and motor support are fixed in the stack shell top through the fastener, so set up, the motor cylinder wraps up in it with whole motor, the noise that the motor produced is kept apart, can play the complete machine effect of making an uproar, simultaneously because the top of motor cylinder is equipped with the stack shell, make the top of motor cylinder be unopened, compare the air inlet area with prior art and reduce greatly, like this under the certain condition of intake, the flow velocity of the air current in the motor cylinder obtains effectively promoting, do benefit to the heat in the quick area walking motor cylinder, and then improved the radiating efficiency of motor.
2. The top of stack shell is located to the stack shell cover, and stack shell lateral wall is equipped with spacing step, spacing step and stack shell bottom looks butt, through the spacing effect of spacing step like this, can locate the stack shell cover at the top of stack shell fast, does benefit to the assembly of stack shell.
3. The barrel outer side wall is equipped with first guiding part, and the barrel lid lateral wall is equipped with the second guiding part, and the second guiding part cover is located on the first guiding part, and second guiding part matches with first guiding part, plays the installation guide effect in the assembly process of barrel lid, has further improved the assembly efficiency of barrel lid, and first guiding part forms by barrel body lateral wall outward protrusion, and second guiding part forms by barrel lid lateral wall opposite both sides outward protrusion, and easy shaping, low in processing cost.
4. The upper part of the motor cylinder is provided with the communication port communicated with the inside of the engine base, so that the air inlet area of the motor cylinder is reduced, the flow speed of air flow in the motor cylinder is effectively improved under the condition of a certain air inlet amount, and the heat in the motor cylinder is facilitated to be quickly taken away, so that the air inlet area is improved.
5. The communication opening is arranged on the cylinder cover, so that in the operation process of the motor, air flow in the machine seat flows to the air outlet from top to bottom after entering the motor cylinder through the communication opening, the air flow in the motor cylinder can be ensured to flow smoothly, the flow speed of the air flow is accelerated to a certain extent, the heat in the motor cylinder is facilitated to be quickly taken away, and the heat dissipation efficiency of the motor is further improved.
6. The motor cylinder also comprises a cylinder seat positioned at the bottom of the cylinder body, a second shaft hole is formed in the center of the cylinder seat, a fan is arranged at the lower end of the motor shaft, the lower end of the motor shaft penetrates through the second shaft hole and then is connected with the fan, and in the operation process of the motor, the fan enables air flow in the motor seat to enter the motor cylinder from top to bottom and then flow to the air outlet, so that heat dissipation is carried out on the motor.
7. The machine base comprises a machine shell and a bottom cover positioned at the bottom of the machine shell, the cylinder base is arranged on the bottom cover, and the cylinder base and the bottom cover are integrally formed, so that the modular design, the modular assembly and the modular maintenance are facilitated.
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 and do not limit the invention.
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic view of a scroll casing and a flow bend in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view illustrating an internal structure of a housing in a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a scroll casing and a flow-through curve in a second embodiment of the present invention;
FIG. 5 is a schematic view showing the structure of a motor cylinder and a bottom cover in a third embodiment of the present invention;
FIG. 6 is a cross-sectional view of FIG. 5;
FIG. 7 is an exploded view of the motor cartridge of FIG. 5;
fig. 8 is a schematic structural diagram of a volute in a fourth embodiment of the present invention;
FIG. 9 is a schematic diagram of an internal structure of a housing in a fifth embodiment of the present invention;
FIG. 10 is a schematic view of the scroll casing, sound deadening structure and flow bend of FIG. 9;
FIG. 11 is a diagram of noise reduction data of a sound attenuation structure in a fifth embodiment of the present invention;
fig. 12 is a diagram showing noise reduction data of a food processor according to a fifth embodiment of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be arbitrarily combined with each other.
The structure of the food processor is shown in fig. 1 to 10, the food processor comprises a machine base 1 and a stirring cup 2, a motor 3 and a circuit board (not shown in the drawings) are arranged in the machine base 1, the stirring cup 2 is arranged above the machine base 1, the stirring cup 2 comprises a cup cover 4 and a cup body 5, the cup body 5 is a glass cup and is provided with a handle, the cup cover 4 and the cup body 5 are encircled to form a crushing space, a crushing cutter 6 is arranged in the cup body 5, the upper end of a motor shaft 7 of the motor 3 is connected with the crushing cutter 6, the motor shaft 7 is connected with the crushing cutter 6 through a coupler, the coupler comprises an upper coupler (not shown in the drawings) and a lower coupler (not shown in the drawings), the upper coupler is connected with a cutter shaft of the crushing cutter 6, and the lower coupler is connected with the upper end of a motor shaft 7, so that the motor 3 can drive the crushing cutter 6 to rotate in the crushing space to crush food after the stirring cup 2 is arranged on the machine base 1.
The motor base 1 is provided with an air inlet 8 and an air outlet 9, the air outlet 9 is positioned at one side below the motor base 1, the motor base 1 defines a heat dissipation air channel 10 communicated with the air inlet 8, the lower end of a motor shaft 7 is provided with a fan 11, the bottom of the motor base 1 is provided with a volute 12 communicated with the heat dissipation air channel 10, the volute 12 is positioned at the periphery of the fan 11, in the running process of the motor 3, the fan 11 sucks external air into the heat dissipation channel 10 from the air inlet 8 and drives air flow in the heat dissipation air channel 10 to flow from the volute 12 to the air outlet 9, so that heat dissipation of the motor 3 and a circuit board in the motor base 1 is realized, a circulation bend 13 is arranged between the volute 12 and the air outlet 9, the air flow in the motor base 1 must pass through the circulation bend 13 before flowing to the air outlet 9 through the volute 12, noise generated by the motor 3 and the fan 11 is entrained in the air flow, and in the process of spreading in the circulation bend 13, the noise can interfere with each other in the circulation bend 13, and part of noise can be weakened mutually, thereby playing the role of noise reduction.
Embodiment one:
as shown in fig. 1 and 2, the food processor of this embodiment includes a base 1 and a stirring cup 2, a motor 3 and a circuit board (not shown in the drawing) are disposed in the base 1, the stirring cup 2 is disposed above the base 1, the stirring cup 2 includes a cup cover 4 and a cup body 5, the cup body 5 is a glass cup and has a handle, the cup cover 4 and the cup body 5 surround to form a crushing space, a crushing cutter 6 is disposed in the cup body 5, the upper end of a motor shaft 7 of the motor 3 is connected with the crushing cutter 6, the motor shaft 7 is connected with the crushing cutter 6 through a coupling, the coupling includes an upper coupling (not shown in the drawing) and a lower coupling (not shown in the drawing), the upper coupling is connected with a cutter shaft of the crushing cutter 6, and the lower coupling is connected with the upper end of the motor shaft 7, when the stirring cup 2 is disposed on the base 1 in place, the upper coupling and the lower coupling are cooperatively connected, so that the motor 3 can drive the crushing cutter 6 to rotate in the crushing space to crush food.
The machine base 1 is provided with an air inlet 8 and an air outlet 9, the machine base 1 comprises a machine shell 27 and a bottom cover 28 positioned at the bottom of the machine shell 27, the machine shell 27 and the bottom cover 28 are encircled to form a heat dissipation air duct 10, the air inlet 8 and the air outlet 9 are both arranged on the bottom cover 28 and are communicated with the heat dissipation air duct 10, a motor barrel 18 for accommodating a motor 3 is arranged in the heat dissipation air duct 10, the motor barrel 18 is open, the lower end of a motor shaft 7 of the motor 3 is provided with a fan 11, the bottom of the machine base 1 is provided with a volute 12 communicated with the heat dissipation air duct 10, the volute 12 is arranged on the bottom cover 28 and positioned at the bottom of the motor barrel 18, the motor barrel 18 is communicated with the heat dissipation air duct 10 and the volute 12, the volute 12 is positioned at the periphery of the fan 11, during the running of the motor 3, the fan 11 sucks external wind into the heat dissipation channel 10 from the air inlet 8 and drives the air flow in the heat dissipation air channel 10 to flow to the air outlet 9 through the motor barrel 18 and the volute 12 in sequence, thus realizing the heat dissipation of the motor 3 and the circuit board in the engine base 1, a circulation bend 13 is arranged between the volute 12 and the air outlet 9, so that the air flow in the engine base 1 must first pass through the circulation bend 13 before flowing to the air outlet 9 through the volute 12, the noise generated by the motor 3 and the fan 11 is always entrained in the air flow, and in the process of spreading in the circulation bend 13, the noise interferes with each other in the circulation bend 13, and part of the noise can be mutually weakened, thereby playing the role of noise reduction,
the arc length of the flow curve 13 is L1, the arc length of the volute 12 is L2, and in this embodiment, L1/l2=0.7, not only can the noise reduction effect be significantly improved, but also the arc length L1 of the flow curve 13 is not too large to increase the cost and is limited by the limited space of the stand, so that the placement is difficult. The flow bend 13 has a first communication end 14 and a second communication end 15, the first communication end 14 is connected with the volute 12, the second communication end 15 is connected with the air outlet 9, the volute 12 comprises a volute substrate 37 and an extension plate 38 extending outwards from the inner end of the volute substrate 37, a gap is formed between the volute substrate 37 and the extension plate 38, the gap forms an air outlet end 36, and the air outlet end 36 is connected with the first communication end 14. In the running process of the motor 3, the fan 11 sucks external wind into the heat dissipation channel 10 from the air inlet 8, and drives the airflow in the heat dissipation air channel 10 to enter the motor barrel 18 to dissipate heat of the motor 3, then the airflow enters the volute 12 and enters the first communicating end 14 of the circulation bend 13 through the air outlet end 36, and due to the existence of the circulation bend 13 between the first communicating end 14 and the second communicating end 15, the airflows interfere with each other in the running process of the airflow from the first communicating end 14 to the second communicating end 15, so that part of noise mixed in the airflows can be weakened mutually, and the noise reduction effect is achieved.
It can be understood that the value of L1/L2 can be 0.5 or 0.8 or 1.3 or 1.5 or 1.7 or 2, as long as the value of L1/L2 is more than or equal to 0.5 and less than or equal to 2, and the noise reduction effect is more obvious when the value of L1/L2 is larger in the range.
It will be appreciated that the air inlet 8 may be provided on the housing 27, or may be configured to provide air inlet, and may avoid interference between the air inlet and the air outlet 9.
Embodiment two:
the difference between this embodiment and the first embodiment is that the flow curve is a variable-section curve, as shown in fig. 3 and 4, the variable-section curve 13 is a variable-section curve, which can attenuate acoustic reactance and attenuate acoustic intensity of noise, the acoustic intensity is one of noise energy parameters, thus being beneficial to noise reduction, and the variable-section curve is also beneficial to continuous reflection of noise in the curve, so as to strengthen mutual interference of noise, further being beneficial to noise attenuation, improving user experience, the radial section of the flow curve 13 changes from the first communication end 14 to the second communication end 15 from small to large and then from large to small once, the radial section size at the first communication end 14 is equal to and minimum with the radial section size at the second communication end 15, and the radial section of the flow curve 13 at the middle position of the first communication end 14 and the second communication end 15 is maximum, so that the radial section of the flow curve 13 gradually increases from minimum to maximum and gradually decreases from maximum to minimum, thus the radial section of the flow curve 13 is gradually increased from minimum, the radial section of the noise can be released in the first communication end 13 first and then passes through the second communication end 15, thereby being more beneficial to noise attenuation effect is more obvious.
The first communication end 14 is in smooth transition connection with the spiral case 12, the first communication end 14 is provided with an upward inclined guide surface 16, so that the section of the first communication end 14 is suddenly expanded, sound waves with certain frequencies generate sudden changes of acoustic impedance at the section, the purpose of noise elimination is achieved, the second communication end 15 is in smooth transition connection with the air outlet 9, the second communication end 15 is provided with a downward inclined guide surface 16, so that the section of the second communication end 15 is suddenly contracted, sound waves with certain frequencies generate sudden changes of acoustic impedance at the section, the purpose of noise elimination is achieved, the first communication end 14 is provided with an upward inclined guide surface 16, the second communication end 15 is provided with a downward inclined guide surface 16, the expansion and the contraction are beneficial to releasing, collecting and attenuating noise, and the energy sudden changes of noise can be reduced, and the purpose of noise reduction is achieved.
The exhaust curve 17 is arranged between the second communication end 15 and the air outlet 9, the radial section of the exhaust curve 17 is gradually increased and is in smooth transition connection with the flow curve 13, so that the exhaust curve 17 is connected between the flow curve and the air outlet 9, the air flow flowing out of the flow curve 13 can be subjected to noise reduction treatment again, the noise intensity is collected again and is released and attenuated, the energy mutation of the noise is reduced, the noise reduction purpose is achieved, and the continuous reflection of the noise in the exhaust curve is facilitated to strengthen the mutual interference of the noise due to the gradual increase of the radial section of the exhaust curve 17, so that the effect of noise attenuation can be achieved.
The higher the rotational speed of the motor 3, the more noise is generated, and the idle rotational speed of the motor 3 in this embodiment is 25000r/min, where the idle rotational speed refers to the rotational speed at which the motor idles. Because the circulation bend 13 is arranged between the volute 12 and the air outlet 9, the air flow of the heat dissipation air duct 10 is ensured to pass through the circulation bend 13 before flowing to the air outlet 9 through the volute 12, and the L1/L2=1, the circulation path of the air flow is increased, the noise carried by the air flow is greatly weakened, the no-load rotating speed of the motor 3 in the embodiment is 25000r/min, the effect of high-speed crushing of the food processor can be achieved, and further, the food can reach the wall breaking standard and is easy to be absorbed by a human body. The circulation bend 13 substantially increases the circulation path of the air flow, the circulation bend 13 is arc-shaped, the whistle noise is reduced, the radian beta of the circulation bend 13 is 135 degrees, the noise can be effectively weakened in the process of the circulation bend 13, the larger the radian of the circulation bend 13 is, the better the noise is in theory, the more the noise reduction is facilitated, but the noise is limited by the size of the engine base.
It can be understood that the radian β of the flow bend 13 may be 60 ° or 80 ° or 100 ° or 120 ° or 150 ° or 170 ° or 180 °, so long as the radian β is not smaller than 60 °, it is only necessary to ensure that noise is effectively attenuated in the process of propagating in the flow bend 13, and the larger the radian of the flow bend 13, the more obvious the noise reduction effect is, but the size is limited by the size of the engine base.
It can be understood that the radial cross section of the flow bend 13 is changed from the first communication end to the second communication end from small to large at least once, so that the molding is easy, the purpose of changing the cross section can be realized, and the noise reduction requirement is further met.
Other structures and advantageous effects of the present embodiment are the same as those of the first embodiment, and will not be described here again.
Embodiment III:
the present embodiment differs from the first and second embodiments in the structure of the motor barrel 18: referring to fig. 5 to 7, the motor cylinder 18 includes a cylinder body 19, a cylinder seat 20 located at the bottom of the cylinder body 19, and a cylinder cover 21 located at the top of the cylinder body 19, wherein a first shaft hole 22 is formed in the cylinder cover 21, through which the upper end of the motor shaft 7 passes, the upper end of the motor shaft 7 passes through the first shaft hole 22 and is connected with the crushing cutter 6, in this embodiment, the no-load rotation speed of the motor 3 is 30000r/min, a motor bracket is arranged at the upper end of the motor 3, the motor bracket is arranged at the top of the cylinder body 19 and is located below the cylinder cover 21, and the cylinder cover 21 and the motor bracket are fixed at the top of the cylinder body 19 through fasteners. The cylinder seat 20 is arranged on the machine base 1 and is communicated with the air outlet 9, the cylinder seat and the air outlet are communicated through the volute 12, a communication port 23 communicated with the heat dissipation air duct 10 is formed in the upper portion of the motor cylinder 18, the fan 11 enables air flow in the heat dissipation air duct 10 to flow into the motor cylinder 18 from top to bottom and then to flow to the air outlet 9 in the operation process of the motor 3, the motor cylinder 18 wraps the whole motor 3, noise generated by the motor 3 is isolated, the noise reduction effect of the whole machine can be achieved, meanwhile, the cylinder cover 21 is arranged at the top of the motor cylinder 18, the top of the motor cylinder 18 is non-open, compared with the prior art, the air inlet area is greatly reduced, so that under the condition of a certain air inlet, the flow speed of the air flow in the motor cylinder 18 is effectively improved, the heat in the motor cylinder 18 is facilitated to be taken away rapidly, the heat dissipation efficiency of the motor is further improved, and the heat dissipation effect of the motor is better even if the motor 3 runs at the no-load speed of 30000r/min standard.
In this embodiment, the cover 21 is covered on the top of the barrel 19, the outer side wall of the barrel 19 is provided with a limiting step 24, and the limiting step 24 is abutted against the bottom of the cover 21, so that the cover 21 can be covered on the top of the barrel 19 rapidly through the limiting function of the limiting step 24, which is beneficial to the assembly of the cover 21. The outside wall of the cylinder body 19 outwards protrudes to form a first guide part 25, the opposite sides of the outside wall of the cylinder cover 21 outwards protrudes to form a second guide part 26, the first guide part 25 is of a protruding structure, the second guide part 26 is of a concave structure, the second guide part 26 can be covered on the first guide part 25, the second guide part 26 is matched with the first guide part 25, an installation guide effect is achieved in the assembly process of the cylinder cover 21, the assembly efficiency of the cylinder cover is further improved, the first guide part 25 is outwards protruded from the outside wall of the cylinder body 19, the second guide part is outwards protruded from the opposite sides of the outside wall of the cylinder cover 21, and the second guide part is easy to form and low in processing cost.
The communication port 23 is located on the cylinder cover 21, in the motor operation process, the fan 11 enables the air flow in the heat dissipation air flue 10 to flow into the motor cylinder 18 from top to bottom through the communication port 23 and then flow into the air outlet 9, so that the air inlet area of the motor cylinder 18 is reduced, under the condition that the air inlet quantity is certain, the flow speed of the air flow in the motor cylinder 18 is effectively improved, the heat in the motor cylinder is facilitated to be quickly carried away, and the heat dissipation efficiency of the motor is further improved, in particular, the communication port 23 is arranged at two ends of the side wall of the cylinder cover 21, in the motor operation process, the air flow direction shown by the arrows in fig. 5 and 6 is referred to, the fan 11 enables the air flow in the heat dissipation air flue 10 to symmetrically enter the motor cylinder 18 from two side walls of the cylinder cover 21, and because the air flow symmetrically enters, the flow direction of the air flow in the motor cylinder 18 is ensured to be smoother, the flow speed of the air flow is accelerated to a certain extent, the heat in the motor cylinder 18 is facilitated to be quickly carried away, and the heat dissipation efficiency of the motor 3 is further improved. The machine base 1 comprises a machine shell 27 and a bottom cover 28 positioned at the bottom of the machine shell 27, the machine shell 27 and the bottom cover 28 are surrounded to form the heat dissipation air duct 10, the cylinder base 20 is arranged on the bottom cover 28 and is integrally formed with the bottom cover 28, thus being beneficial to modular design, modular assembly and modular maintenance, and the air inlet 8 and the air outlet 9 are positioned on the bottom cover 28 and are positioned at the periphery of the cylinder base 20.
The cylinder seat 20 is provided with the opening 29 and the supporting seat 30, the supporting seat 30 is connected with the opening 29 through the connecting strip 31, one end of the connecting strip 31 is connected with the supporting seat 30, the other end is connected with the edge of the opening 29, the lower end of the motor 3 is arranged on the supporting seat 30, a second shaft hole 32 is formed in the center of the supporting seat 30, the lower end of the motor shaft 7 penetrates through the second shaft hole 32 and then is connected with the fan 11, the supporting seat 30 can well support the lower end of the motor 3, vibration generated in the operation process of the motor 3 can be effectively prevented, the service life of the motor 3 is prolonged and the motor can continuously work normally, the fan 11 can be further operated normally to dissipate heat to a certain extent, the fan 11 is located below the opening 29, in the operation process of the motor 3, the fan 11 enables air flow in the cooling air duct 10 to flow to the air outlet 9 through the opening 29 from top to bottom of the motor 3, the fan 11 is located below the opening 29, the air flow in the motor 18 is conveniently discharged, heat in the motor cylinder 18 is conveniently and rapidly taken away, and the heat in the motor cylinder 18 is conveniently cooled, and the heat dissipation efficiency of the motor 3 is improved. The opening 29 extends upwards to form the wind-guiding surrounding edge 33, the wind-guiding surrounding edge 33 is located at the periphery of the lower end of the motor 3, a gap 34 through which air flows is formed between the wind-guiding surrounding edge 33 and the supporting seat 30, air flow in the motor cylinder 18 flows through the gap 34 and then flows to the air outlet 9 under the guiding action of the wind-guiding surrounding edge 33, the wind-guiding surrounding edge 33 plays a good air flow guiding role, the air flow in the motor cylinder 18 is favorably discharged, the heat in the motor cylinder 18 is favorably and rapidly taken away, the wind-guiding surrounding edge 33 is obliquely arranged upwards, a closing-in structure is formed, the negative pressure value formed in unit time is higher, the speed of the air flow flowing at the opening 29 is further guaranteed to be higher, the convection effect is good, and the heat dissipation of the motor 3 is favorably realized.
It will be appreciated that the cartridge holder 20 can also be connected to the bottom cap 28 in a split manner.
Other structures and beneficial effects of the present embodiment are the same as those of the above embodiments, and are not described herein.
Embodiment four:
the difference between the present embodiment and the third embodiment lies in the structure of the spiral case, as shown in fig. 8, the spiral case 12 is spiral, the extension plate 38 is formed by extending from the inner end of the spiral case base plate 37 to the outside in a spiral manner, the air flow flowing out from the air outlet end 36 of the spiral case can flow smoothly under the guiding action of the extension plate 38, thus facilitating the rapid flow of the air flow, further facilitating the rapid heat dissipation, and the spiral case can rapidly guide the air flow, and simultaneously facilitating the reduction of the whistle noise generated by the fan.
In this embodiment, the no-load rotation speed of the motor is 35000r/min, and due to the arrangement of the volute 12, the noise is small when the air flow generated by the fan is led out through the volute 12, and the heat dissipation of the motor can be accelerated by the rapid air flow guiding out. The center of the volute 12 is provided with a through hole 35 through which the lower end of the motor shaft 7 passes, the lower end of the motor shaft 7 passes through the through hole 35 and then is connected with the fan 11, the radius of the volute 12 is R1, the radius of the fan 11 is R2, R1/R2 is 1.1, and 1.02-1/R2-1.15 is met. The through hole 35 forms the air inlet end of the spiral case 12 and is positioned at the inner end of the spiral case 12, the air outlet end 36 is positioned at the outer end of the spiral case 12, the air outlet end 36 and the air outlet 9 are arranged in different directions, and the two are communicated through the circulation bend 13 so as to increase the circulation path of air flow.
It can be understood that the value of R1/R2 can be 1.02 or 1.05 or 1.08 or 1.11 or 1.13 or 1.15, as long as R1/R2 is less than or equal to 1.02 and less than or equal to 1.15, and the smaller the value of R1/R2, the larger the negative suction pressure is, and the higher the speed of the air flow is.
Other structures and beneficial effects of the embodiment are the same as those of the embodiment, and are not described herein.
Fifth embodiment:
the difference between this embodiment and the fourth embodiment lies in the silencing structure, as shown in fig. 9 and 10, the periphery of the fan 11 in this embodiment is provided with the silencing structure 39, the silencing structure 39 is disposed between the air outlet 36 and the air outlet 9, the fan 11 sucks the external air into the heat dissipation air duct 10 from the air inlet 8, and drives the air flow in the heat dissipation air duct 10 to enter the volute 12, and after being silenced by the silencing structure 39, the air flow flows to the air outlet 9, the speed of the air flow flowing out from the volute 12 is still higher, and whistle noise still exists, the sound wave of the air flow can be continuously absorbed by the setting of the silencing structure 39, the whistle noise is effectively reduced, and the silencing effect is good.
In this embodiment, the cartridge 20 includes a cartridge bottom wall and a cartridge side wall 41, the silencing structure 39 is located on the inner periphery of the cartridge side wall 41, so that the air flow is reflected by the cartridge side wall 41 and led to the air outlet 9 after being silenced by the silencing structure 39, and the silencing structure 39 adopts a porous plate silencing and noise reducing structure to effectively reduce the spraying noise of the air outlet end 36 of the volute 12.
The sound deadening structure 39 comprises a first sound deadening plate, a first sound deadening hole 42 is formed in the extending plate 38, the extending plate 38 forms the first sound deadening plate, the first sound deadening plate with the first sound deadening hole 42 can absorb noise mixed in the air flow, the noise is greatly reduced, the extending plate 38 is arc-shaped, the arc-shaped arrangement enables the air flows to interfere with each other, so that a part of noise can be weakened mutually, and the improvement of sound deadening force is more facilitated.
In order to further improve the silencing effect, the silencing structure 39 further includes a second silencing plate 43 and a first silencing region 44, the second silencing plate 43 is disposed on the periphery of the first silencing plate, i.e. the extending plate 38, a second silencing hole 45 is formed in the second silencing plate 43, the first silencing region 44 is formed in the first silencing plate, i.e. the gap between the extending plate 38 and the second silencing plate 43, the second silencing plate 43 with the second silencing hole 45 and the first silencing region 44 formed in the gap between the first silencing plate and the second silencing plate have the function of absorbing noise, so that the air flow is subjected to noise reduction treatment through the second silencing plate 43 and the first silencing region 44 after being subjected to noise reduction through the first silencing plate, i.e. the extending plate 38, the second silencing plate 43 is arc-shaped, and the arc-shaped arrangement enables air flows to interfere with each other, so that part of noise can be weakened mutually, and the improvement of silencing strength is more facilitated.
In order to further improve the silencing effect, the silencing structure 39 further includes a third silencing plate 46 and a second silencing region 47, the third silencing plate 46 is disposed on the periphery of the second silencing plate 43, a third silencing hole 48 is disposed on the third silencing plate 46, a gap between the second silencing plate 43 and the third silencing plate 46 forms the second silencing region 47, the third silencing plate 46 with the third silencing hole 48 and the second silencing region 47 formed by the gap between the second silencing plate and the third silencing plate have the function of absorbing noise, so that the airflow is subjected to noise reduction treatment through the third silencing plate 46 and the second silencing region 47 after being subjected to noise reduction through the first silencing region 44, the third silencing plate 46 is arc-shaped, and the arc-shaped arrangement enables the airflows to interfere with each other, so that a part of noise can be weakened mutually, the improvement of silencing strength is facilitated, the side wall 41 of the cylinder seat is a solid silencing plate, and the last noise reduction structure of the silencing structure 39 can completely isolate the finally transmitted noise source.
In order to achieve progressive silencing to improve the silencing effect, the aperture of the second silencing hole 45 is smaller than the aperture of the first silencing hole 42, the aperture of the third silencing hole 48 is not larger than the aperture of the second silencing hole 45, the smaller the aperture is, the larger the noise is reduced, so that the first silencing plate, namely the extending plate 38, performs primary silencing, and the first silencing plate, namely the silencing structure behind the extending plate 38, performs secondary or even advanced silencing, so that the silencing effect is good, the aperture of the third silencing hole 48 in the embodiment is equal to the aperture of the second silencing hole 45, and the first silencing region 44 is smaller than the second silencing region 47, so that the silencing force of the second silencing region 47 is larger than that of the first silencing region 44, and the silencing effect is improved, wherein the specific size is determined according to the specific structure. Here, the first silencer forms a first-stage silencing structure, the second silencer forms a second-stage silencing structure with the first silencing area, the third silencer forms a third-stage silencing structure with the second silencing area, see fig. 11, noise is gradually reduced under the silencing effect of the first-stage silencing structure, the second-stage silencing structure and the third-stage silencing structure, original 30 db is reduced to 5 db, silencing effect is excellent, no-load rotating speed of the motor 3 in this embodiment is 40000r/min, and noise generated is small.
The spiral case 12 of this embodiment outwards extends spirally and forms circulation bounding wall 49, circulation bounding wall 49 and extension board 38 slick and sly transitional coupling, form aforesaid circulation bend 13 between circulation bounding wall 49 and the spiral case outer wall, spiral case outer wall and circulation bounding wall 49 inner wall are equipped with first reflection muscle 50 and second reflection muscle 51 respectively, first reflection muscle 50 and second reflection muscle 51 play the sound wave and strengthen the effect of reflection, interference, make noise mutual interference weaken, reach the mesh of making an uproar, first reflection muscle 50 and second reflection muscle 51 crisscross setting like this set up more rationally, more be favorable to strengthening reflection and interference of sound wave, make the dynamics of noise mutual attenuation bigger, the noise reduction effect is more obvious.
The food processor of this embodiment has better noise reduction effect and radiating effect, in the course of operation of the food processor, the motor 3 drives the crushing cutter 6 to rotate in crushing space in order to crush food, meanwhile, the motor 3 drives the fan 11 to rotate, the fan 11 sucks the external wind from the air inlet 8 into the radiating channel 10, and drive the air current in the radiating air duct 10 to enter the motor cylinder 18 from top to bottom through the communication port 23 to radiate the motor 3 in the motor cylinder 18, the motor cylinder 18 wraps up the whole motor 3 in, the noise produced by the motor 3 is isolated, can play the role of noise reduction of the whole machine, meanwhile, because the top of the motor cylinder 18 is provided with the cylinder cover 21, the top of the motor cylinder 18 is non-open, but the air inlet area is greatly reduced compared with the prior art, thus under the condition that the air inlet quantity is certain, the flow speed of the air current in the motor cylinder 18 is effectively improved, the heat in the motor cylinder 18 is facilitated to be taken away rapidly, and the radiating efficiency of the motor is further improved; then, the air flow in the motor cylinder 18 enters the volute 12 through the opening 29 of the cylinder seat 20, and the volute 12 is spiral, so that the air flow can be quickly led into the air outlet end 36, the improvement of the air flow speed is facilitated to quickly dissipate heat, and meanwhile, the whistle noise generated by the fan is reduced; the air flow can flow through the silencing structure 39, the silencing structure 39 is a porous plate silencing and noise reducing structure, the air flow sequentially passes through the first silencing plate, the first silencing area, the second silencing plate, the second silencing area and the third silencing plate to be gradually silenced, the silencing structure 39 is a high-speed air flow noise reducing area, the design principle of a resistive silencer is applied, sound waves of the air flow are continuously absorbed, and gradually attenuated or the sound waves are transferred to a frequency range which is insensitive to human ears and is close to ultrasonic waves to reduce noise; the air flow subjected to noise reduction treatment by the noise reduction structure 39 enters the circulation bend 13, the circulation bend 13 is a variable-section bend, on one hand, the noise intensity is a parameter of the noise energy, the noise is reduced by reducing the noise intensity, on the other hand, the speed of the air flow is reduced, the air flow speed is reduced, no additional whistle noise and resonance noise are generated, in addition, the two side walls of the circulation bend 13 are also provided with a first reflection rib 50 and a second reflection rib 51, the first reflection rib 50 and the second reflection rib 51 play the roles of enhancing the reflection and interference of the sound waves, so that the noise is mutually interfered and reduced, the circulation bend 13 is designed as a resistance muffler, no sound absorption material is arranged inside the circulation bend, the noise is reduced by mainly changing the sectional area of an air duct, the noise is reduced by mainly aiming at the noise with medium and low frequency, the air flow speed is greatly reduced, and the air flow cannot generate the additional whistle noise and the resonance noise; the air flow enters the exhaust curve 17 after passing through the circulation curve 13, the exhaust curve 17 is also designed as a resistance muffler, the noise intensity is collected and released again to attenuate, the energy mutation of noise is reduced, the aim of reducing the noise is achieved, the air flow finally passes through the exhaust curve 17 to be reduced and then flows to the air outlet 9 to be discharged, see fig. 12, the air flow sequentially passes through the noise reduction treatment of three noise reduction areas of the noise reduction structure 39, the circulation curve 13 and the exhaust curve 17 after flowing out of the volute 12, the noise reduction structure 39 forms a high-speed air flow noise reduction area, the circulation curve 13 forms an intermediate-frequency air flow noise reduction area, and the exhaust curve 17 forms a reinforcing noise reduction area, namely a noise reduction area again, so that the high-frequency and intermediate-frequency noise in the air flow is effectively reduced, the noise generated by the motor 3 and the fan 11 is reduced to an ideal minimum value, the theoretical noise can be reduced by 20 to 30 dB, the structures of the motor cylinder 18 and the volute 12 can both promote the flow speed of the air flow, the heat dissipation of the food processor can also achieve the aim of simultaneously.
It will be appreciated that the message structure 39 also includes a fourth or even more sound attenuating panels disposed about the periphery of the third sound attenuating panel and sequentially from the inside to the outside to further enhance the sound attenuating effect.
Other structures and beneficial effects of the present embodiment are the same as those of the fourth embodiment, and will not be described here again.
The foregoing description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, i.e. all equivalent changes and modifications that may be made in accordance with the present invention are covered by the appended claims, which are not intended to be construed as limiting.
Claims (10)
1. The utility model provides a food processor that radiating effect is good, includes the frame that has the motor, the stirring cup of being connected with the frame, locates the crushing sword in the stirring cup, through the coupling joint between motor shaft upper end of motor and the crushing sword, the coupling includes shaft coupling and lower shaft coupling, it is connected with crushing sword to go up the coupling, lower shaft coupling is connected with the motor shaft upper end, is equipped with the motor section of thick bamboo that is used for holding the motor in the frame, a serial communication port, the motor section of thick bamboo includes the stack shell and is located the stack shell top, be equipped with the first shaft hole that the motor shaft upper end runs through on the stack shell, the motor upper end is equipped with the motor support, the stack shell top is arranged in to the motor support and is located the stack shell below, stack shell top and motor support are fixed in the stack shell top through the fastener.
2. The food processor of claim 1 wherein the bowl cover is positioned over the top of the bowl.
3. The food processor of claim 2, wherein the outer sidewall of the barrel is provided with a stop step, the stop step abutting the bottom of the barrel cover.
4. The food processor of claim 1, wherein the outer side wall of the barrel is provided with a first guide portion, the outer side wall of the barrel cover is provided with a second guide portion, and the second guide portion is covered on the first guide portion.
5. The food processor of claim 4 wherein the first guide is formed by the outer sidewall of the barrel protruding outwardly and the second guide is formed by the outer sidewall of the cap protruding outwardly.
6. The food processor of claim 1, wherein the upper portion of the motor cartridge is provided with a communication port communicating with the interior of the housing.
7. The food processor of claim 6 wherein the communication port is located on the cartridge cover.
8. The food processor of claim 1, wherein the motor cartridge further comprises a cartridge seat positioned at the bottom of the cartridge body, a second shaft hole is formed in the center of the cartridge seat, a fan is arranged at the lower end of the motor shaft, and the lower end of the motor shaft is connected with the fan after passing through the second shaft hole.
9. The food processor of claim 8, wherein the housing comprises a housing and a bottom cover at a bottom of the housing, and the cartridge is mounted to the bottom cover.
10. The food processor of claim 9, wherein the cartridge seat is integrally formed with the bottom cover.
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| CN201721673955 | 2017-12-05 | ||
| CN2017216739559 | 2017-12-05 |
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| CN201821251969.6U Active CN209285201U (en) | 2017-12-05 | 2018-08-03 | A kind of food processor reducing noise |
| CN201821246182.0U Active CN209285200U (en) | 2017-12-05 | 2018-08-03 | A kind of food processor of rapid heat dissipation |
| CN201810878236.3A Active CN109864620B (en) | 2017-12-05 | 2018-08-03 | Food processor with good heat dissipation effect |
| CN201821251105.4U Active CN209437062U (en) | 2017-12-05 | 2018-08-03 | A kind of food processor of good heat dissipation effect |
| CN201821440114.8U Active CN209437063U (en) | 2017-12-05 | 2018-09-04 | A kind of food processor that noise reduces |
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| CN201821246182.0U Active CN209285200U (en) | 2017-12-05 | 2018-08-03 | A kind of food processor of rapid heat dissipation |
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| CN201821440114.8U Active CN209437063U (en) | 2017-12-05 | 2018-09-04 | A kind of food processor that noise reduces |
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| CN209285201U (en) * | 2017-12-05 | 2019-08-23 | 九阳股份有限公司 | A kind of food processor reducing noise |
| CN110974054B (en) * | 2019-10-24 | 2022-04-05 | 九阳股份有限公司 | Food processor safe in utilization |
| CN112713715A (en) * | 2020-12-25 | 2021-04-27 | 中车永济电机有限公司 | Self-ventilation directional exhaust motor cooling structure |
| CN113576285B (en) * | 2021-08-23 | 2022-11-01 | 深圳市尚康智科技有限公司 | Intelligent multifunctional food processor |
| CN113854874B (en) * | 2021-09-26 | 2022-09-20 | 珠海格力电器股份有限公司 | Base subassembly and food processingequipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN209437062U (en) | 2019-09-27 |
| CN209437063U (en) | 2019-09-27 |
| CN209285200U (en) | 2019-08-23 |
| CN109864620A (en) | 2019-06-11 |
| CN209285201U (en) | 2019-08-23 |
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