CN107044432B - Mute broken wall cooking machine with large heat dissipation air quantity - Google Patents
Mute broken wall cooking machine with large heat dissipation air quantity Download PDFInfo
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- CN107044432B CN107044432B CN201710096535.7A CN201710096535A CN107044432B CN 107044432 B CN107044432 B CN 107044432B CN 201710096535 A CN201710096535 A CN 201710096535A CN 107044432 B CN107044432 B CN 107044432B
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- fan
- air
- heat dissipation
- motor
- air inlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Food Science & Technology (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Food-Manufacturing Devices (AREA)
Abstract
The invention relates to a mute wall-breaking cooking machine with large heat radiation air quantity, which comprises a main machine provided with a motor and a heat radiation air duct corresponding to the motor, wherein the tail end of a motor shaft of the motor stretches into the heat radiation air duct and is connected with heat radiation fan blades arranged in the heat radiation air duct, the heat radiation fan blades comprise conical upper fan covers, fan blades and conical lower fan covers, the two fan covers are arranged at intervals up and down and form an airflow cavity for airflow to pass through, an air inlet communicated with the airflow cavity is formed above the two fan covers, an air outlet communicated with the airflow cavity is formed below the two fan covers, and the fan blades are radially arranged in the airflow cavity; the motor drives the heat dissipation fan blade to rotate to generate air flow from the air inlet to the air outlet. Compared with the traditional axial flow fan or centrifugal fan, the heat radiation fan can bear higher rotating speed, can continuously generate larger air flow, has better heat radiation effect and has lower working noise.
Description
Technical Field
The invention relates to a wall-breaking food processor, in particular to a mute wall-breaking food processor with large heat dissipation air quantity.
Background
In the prior art, when the broken food machine works, a large amount of heat can be generated due to the fact that the rotating speed of the motor is very high, and therefore a cooling fan is required to be arranged on the motor to cool the motor.
For example, chinese patent document No. CN205758378U discloses a wall breaking machine in 2016, 12 and 7 days, comprising: the shell and the base are matched to define a cavity, and an air inlet and an air outlet communicated with the cavity are formed in the shell and/or the base; the air guide cover is arranged in the cavity, and an air inlet channel communicated with the air inlet is defined between the outer wall surface of the air guide cover and the inner wall surface of the shell; the motor bracket is arranged in the cavity and is positioned above the air guide cover, the air guide cover is arranged opposite to the air guide cover, the air guide cover and the air guide plate are matched to define a heat dissipation cavity, and the heat dissipation cavity is communicated with the air inlet channel and the air outlet; the motor component is arranged on the motor bracket and positioned in the heat dissipation cavity; the circuit board is arranged in the air inlet channel.
Among the prior art, radiator fan on broken wall cooking machine adopts axial fan or centrifugal fan in order to produce the heat dissipation air current mostly, because radiator fan is small, and its maximum rotational speed that can bear is generally below 1 ten thousand changes per minute, leads to its air current intensity that can produce to be limited, after exceeding maximum rotational speed, air current intensity can't increase again, and the noise can continuously rise, and the heat dissipation wind channel is difficult to carry out reasonable optimization moreover, and the noise can reach more than 90 decibels under the maximum rotational speed, seriously influences daily use broken wall cooking machine's somatosensory.
In order to reduce the noise of broken wall cooking machine, generally adopt brushless DC motor (the noise that produces when working at a high speed is very little), but can lead to broken wall cooking machine's manufacturing cost to rise by a wide margin.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a silent wall breaking food processor with large heat radiation air quantity, which has low manufacturing cost, and the heat radiation fan can generate larger air flow and has low working noise.
The purpose of the invention is realized in the following way:
the silent wall-breaking food processor is characterized in that the radiating fan blade comprises a conical upper fan cover, fan blades and a conical lower fan cover, the two fan covers are arranged at intervals up and down and form an airflow cavity for airflow to pass through, an air inlet communicated with the airflow cavity is formed above the two fan covers, an air outlet communicated with the airflow cavity is formed below the two fan covers, and the fan blades are radially arranged in the airflow cavity; the motor drives the heat dissipation fan blade to rotate to generate air flow from the air inlet to the air outlet.
The two air covers form a transverse annular air inlet, the opening direction of the air inlet is perpendicular to the motor shaft, the two air covers form a vertical annular air outlet, and the opening direction of the air outlet is parallel to the motor shaft.
The airflow cavity is inclined from the middle to the periphery from top to bottom.
The fan blades are spirally transited from the air inlet to the air outlet from top to bottom, the spiral direction of the fan blades is opposite to the rotation direction of the motor shaft, the head ends of the fan blades are tangent to the air inlet, and the tail ends of the fan blades are tangent to the air outlet.
The area of an air inlet notch formed by the head ends of the two adjacent fan blades and the air inlet is A, and the area of an air outlet notch formed by the tail ends of the two adjacent fan blades and the air outlet is B, wherein 1>A/B is more than 1/2.
The head end of the fan blade is provided with an arc-shaped, S-shaped or wave-shaped air inlet edge, and the tail end of the fan blade is provided with an arc-shaped, S-shaped or wave-shaped air outlet edge.
The upper fan cover, the fan blades and the lower fan cover form an integrated radiating fan blade, and the rotating center of the radiating fan blade is provided with a shaft sleeve connected with a motor shaft.
The upper fan cover and the lower fan cover are respectively fixed in the main machine, the axes of the two fan covers are coincident with the rotation centers of the fan blades, and the rotation centers of the fan blades are provided with shaft sleeves connected with a motor shaft.
The upper fan covers are fixed in the main machine, and the axes of the two fan covers are overlapped with the rotation center of the fan blade; the lower fan cover and the fan blades form a whole, and the rotating center of the lower fan cover is provided with a shaft sleeve connected with a motor shaft.
The lower fan covers are fixed in the main machine, and the axes of the two fan covers are overlapped with the rotation centers of the fan blades; the upper fan cover and the fan blades form a whole, and the rotating center of the upper fan cover is provided with a shaft sleeve connected with a motor shaft.
The beneficial effects of the invention are as follows:
compared with the traditional axial flow fan or centrifugal fan, the heat radiation fan can bear higher rotating speed, can continuously generate larger air flow, has better heat radiation effect and has lower working noise.
In addition, the motor can also select a series excited motor with relatively low cost, so that the manufacturing cost of the wall breaking food processor is lower.
Drawings
Fig. 1 is a schematic structural view of a first embodiment of the present invention.
Fig. 2 is a perspective view of a fan blade according to a first embodiment of the present invention.
Fig. 3 is a perspective view of a fan blade according to a first embodiment of the present invention.
Fig. 4 is a cross-sectional view of a heat dissipating fan blade according to a first embodiment of the present invention.
Fig. 5 is a perspective view of a fan blade and a lower fan cover according to a first embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
First embodiment
Referring to fig. 1-5, the mute wall breaking machine with large heat dissipation air quantity comprises a motor 10 and a host machine 1 corresponding to the motor 10 and provided with a heat dissipation air channel 11, wherein the head end of a motor shaft (no reference sign in the figure) of the motor 10 extends out of the wall breaking machine and is connected with a coupler (not shown in the figure) to drive a cutter in a cup body of the wall breaking machine to rotate (not shown in the figure), the tail end of the motor shaft of the motor 10 extends into the heat dissipation air channel 11 and is connected with heat dissipation fan blades arranged in the heat dissipation air channel 11, the motor 10 drives the heat dissipation fan blades to rotate during working, heat dissipation air flow for heat dissipation of the motor 10 is generated in the heat dissipation air channel 11, noise generated by the heat dissipation fan blades is lower for improving the air quantity of the heat dissipation air flow, and the heat dissipation fan blades make the following improvements:
the heat dissipation fan blade comprises a conical upper fan cover 21, fan blades 22 and a conical lower fan cover 23, wherein the two fan covers are arranged at intervals up and down and form an airflow cavity 24 for airflow to pass through, an air inlet 231 communicated with the airflow cavity 24 is formed above the two fan covers, an air outlet 232 communicated with the airflow cavity 24 is formed below the two fan covers, and the fan blades 22 are radially arranged in the airflow cavity 24; the motor 10 drives the heat dissipation fan blade to rotate to generate air flow from the air inlet 231 to the air outlet 232, the air flow is heat dissipation air flow, after the heat dissipation fan blade is improved, the structure type of the heat dissipation fan blade is close to a compressor impeller, work can be applied to a gas medium during rotation, the gas medium is driven by the impeller rotating at a high speed to perform rotary motion along with the heat dissipation fan blade, so that speed energy and pressure energy are obtained, the gas medium is thrown out by the air outlet 232 under the action of centrifugal force, namely, the heat dissipation fan blade can compress, boost and convey the gas medium, so that air flow with higher strength than that of a traditional axial flow type heat dissipation fan and a centrifugal heat dissipation fan can be generated, the maximum rotating speed that the heat dissipation fan can bear is higher (more than 2 ten thousand revolutions per minute), and noise generated by the work of the heat dissipation fan is lower (the noise can be reduced by more than 15%). After the noise generated by the operation of the cooling fan is greatly reduced, the motor 10 is more suitable for a series excited motor with lower cost, so that the manufacturing cost of the wall breaking food processor is lower.
Further, two hoods form a transverse annular air inlet 231, the opening direction of which is perpendicular to the motor shaft, and two hoods form a vertical annular air outlet 232, and the opening direction of which is parallel to the motor shaft. When the heat dissipation fan blades work, the air inlet 231 can cut in the air medium to better do work and compress the air medium, the air outlet 232 can better throw out the air medium by virtue of centrifugal force so as to generate air flow with larger air quantity and higher strength, so that heat dissipation of the motor 10 is better realized, and the working noise is lower than that of an axial flow fan or a centrifugal fan.
Further, the airflow cavity 24 is inclined from the middle to the periphery from top to bottom, so that the throwing effect of the gas medium is better, the wind resistance is lower, and the power for acting and compressing the gas medium is higher.
Further, the fan blade 22 is formed by spirally transiting from the air inlet 231 to the air outlet 232 from top to bottom, the spiral direction of the fan blade is opposite to the rotation direction of the motor shaft, so that the air medium is favorably compressed by acting, the head end of the fan blade 22 is tangential to the air inlet 231, the tail end of the fan blade 22 is tangential to the air outlet 232, the wind resistance can be further reduced, and the power of the air medium for compressing by acting is further improved.
Further, the area of the air inlet notch formed by the head ends of the two adjacent fan blades 22 and the air inlet 231 is a, the area of the air outlet notch formed by the tail ends of the two adjacent fan blades 22 and the air outlet 232 is B,1>A/B >1/2, i.e. the air outlet area of the air outlet 232 is far greater than the air inlet area of the air inlet 231, and the power of acting compression on the gas medium is further improved under the action of negative pressure.
Further, the front end of the fan blade 22 is provided with an arc-shaped, S-shaped or wave-shaped air inlet edge 221 (S-shaped is preferred in this embodiment), so that the air inlet resistance can be reduced, and similarly, the tail end of the fan blade 22 is provided with an arc-shaped, S-shaped or wave-shaped air outlet edge 222 (wave-shaped is preferred in this embodiment), so that the air outlet resistance can be reduced.
The upper fan cover 21, the fan blade 22 and the lower fan cover 23 of the heat dissipation fan blade can be made of plastics, ceramics, metals and the like, and can be manufactured into an integrated heat dissipation fan blade through conventional processes of integrated injection molding, welding, ultrasonic welding, 3D printing and the like, and the rotation center of the integrated heat dissipation fan blade is provided with a shaft sleeve 25 connected with a motor shaft.
Second embodiment
The main difference between the mute wall breaking machine with large heat dissipation air quantity and the first embodiment is that the upper fan cover 21 and the lower fan cover 23 are respectively fixed in the main machine 1, the axes of the two fan covers are coincident with the rotation center of the fan blade 22, the rotation center of the fan blade 22 is provided with a shaft sleeve 25 connected with a motor shaft, namely, the fan cover 21, the fan blade 22 and the lower fan cover 23 are respectively three relatively independent components, which is beneficial to reducing the cost of a die.
Other undescribed portions, like the first embodiment, are not repeated.
Third embodiment
The main difference between the mute wall-breaking food processor with large heat radiation air quantity and the first embodiment is that an upper fan cover 21 is fixed in a main machine 1, and the axes of the two fan covers are coincident with the rotation center of a fan blade 22; the lower fan cover 23 is integrated with the fan blades 22, and a shaft sleeve 25 connected with a motor shaft is arranged at the rotation center of the lower fan cover. The upper fan cover 21 is a relatively independent component, and the fan blade 22 and the lower fan cover 23 also form a relatively independent component, which is also beneficial to reducing the cost of the die.
Other undescribed portions, like the first embodiment, are not repeated.
Fourth embodiment
The main difference between the mute wall-breaking food processor with large heat radiation air quantity and the first embodiment is that a lower fan cover 23 is fixed in a main machine 1, and the axes of the two fan covers are coincident with the rotation center of a fan blade 22; the upper fan cover 21 and the fan blades 22 are integrated, and a shaft sleeve 25 connected with a motor shaft is arranged at the rotation center of the upper fan cover.
The upper fan cover 21 and the fan blades 22 form relatively independent components, and the lower fan cover 23 is also relatively independent components, which is also beneficial to reducing the cost of the die.
Other undescribed portions, like the first embodiment, are not repeated.
The above disclosure is illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (9)
1. The utility model provides a silence broken wall cooking machine that radiating air volume is big, includes host computer (1) that is equipped with motor (10) and corresponds its radiating wind channel (11) that is equipped with, motor shaft tail end of motor (10) stretches into radiating wind channel (11) to be connected with the radiating fan blade that sets up in radiating wind channel (11), its characterized in that, radiating fan blade includes upper fan housing (21), flabellum (22) and the lower fan housing (23) that are the toper, and two fan housings are upper and lower interval setting and form air current chamber (24) that are used for the air current to pass through, and the air inlet (231) that the top of two fan housings formed and air current chamber (24) intercommunication, air outlet (232) that the below formed and air current chamber (24) intercommunication, flabellum (22) are radial setting in air current chamber (24); the motor (10) drives the heat dissipation fan blades to rotate to generate air flow from the air inlet (231) to the air outlet (232);
the fan blade (22) is formed by spirally transiting from the air inlet (231) to the air outlet (232) from top to bottom, the spiral direction of the fan blade is opposite to the rotation direction of the motor shaft, the head end of the fan blade (22) is tangential to the air inlet (231), and the tail end of the fan blade (22) is tangential to the air outlet (232).
2. The silent wall breaking machine with large heat dissipation air quantity as set forth in claim 1, wherein: the two air covers form a transverse annular air inlet (231), the opening direction of the air inlet is perpendicular to the motor shaft, the two air covers form a vertical annular air outlet (232), and the opening direction of the air outlet is parallel to the motor shaft.
3. The silent wall breaking machine with large heat dissipation air quantity as set forth in claim 1, wherein: the airflow cavity (24) is inclined from the middle to the periphery from top to bottom.
4. The silent wall breaking machine with large heat dissipation air quantity as set forth in claim 1, wherein: the area of an air inlet notch formed by the head ends of two adjacent fan blades (22) and the air inlet (231) is A, and the area of an air outlet notch formed by the tail ends of two adjacent fan blades (22) and the air outlet (232) is B, wherein 1>A/B is more than 1/2.
5. The silent wall breaking machine with large heat dissipation air quantity as set forth in claim 1, wherein: the head end of the fan blade (22) is provided with an arc-shaped, S-shaped or wave-shaped air inlet blade (221), and the tail end of the fan blade (22) is provided with an arc-shaped, S-shaped or wave-shaped air outlet blade (222).
6. The silent wall breaking food processor with large heat dissipation air volume according to any one of claims 1 to 5, wherein: the upper fan cover (21), the fan blades (22) and the lower fan cover (23) form an integrated radiating fan blade, and a shaft sleeve (25) connected with a motor shaft is arranged at the rotation center of the radiating fan blade.
7. The silent wall breaking food processor with large heat dissipation air volume according to any one of claims 1 to 5, wherein: the upper fan cover (21) and the lower fan cover (23) are respectively fixed in the main machine (1), the axes of the two fan covers are overlapped with the rotation center of the fan blade (22), and the rotation center of the fan blade (22) is provided with a shaft sleeve (25) connected with a motor shaft.
8. The silent wall breaking food processor with large heat dissipation air volume according to any one of claims 1 to 5, wherein: the upper fan cover (21) is fixed in the main machine (1), and the axes of the two fan covers are coincident with the rotation center of the fan blades (22); the lower fan cover (23) and the fan blades (22) form a whole, and a shaft sleeve (25) connected with a motor shaft is arranged at the rotation center of the lower fan cover.
9. The silent wall breaking food processor with large heat dissipation air volume according to any one of claims 1 to 5, wherein: the lower fan cover (23) is fixed in the main machine (1), and the axes of the two fan covers are coincident with the rotation center of the fan blades (22); the upper fan cover (21) and the fan blades (22) form a whole, and a shaft sleeve (25) connected with a motor shaft is arranged at the rotation center of the upper fan cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710096535.7A CN107044432B (en) | 2017-02-22 | 2017-02-22 | Mute broken wall cooking machine with large heat dissipation air quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710096535.7A CN107044432B (en) | 2017-02-22 | 2017-02-22 | Mute broken wall cooking machine with large heat dissipation air quantity |
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| CN107044432A CN107044432A (en) | 2017-08-15 |
| CN107044432B true CN107044432B (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710096535.7A Active CN107044432B (en) | 2017-02-22 | 2017-02-22 | Mute broken wall cooking machine with large heat dissipation air quantity |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107591943B (en) * | 2017-09-15 | 2024-06-21 | 佛山市云米电器科技有限公司 | Motor heat radiation structure of broken wall machine |
| CN109730551B (en) * | 2018-03-16 | 2022-03-18 | 九阳股份有限公司 | Low-noise food processor |
| CN108782315A (en) * | 2018-06-11 | 2018-11-13 | 合肥久多农业科技有限公司 | A kind of energy-saving and environment-friendly agricultural breeding house |
| CN113685365B (en) * | 2021-10-25 | 2022-01-18 | 宁波佳音机电科技股份有限公司 | Air extracting pump |
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| JPH05227702A (en) * | 1992-02-10 | 1993-09-03 | Toshiba Corp | Induction motor |
| CN201281045Y (en) * | 2008-09-16 | 2009-07-29 | 南京航空航天大学 | Conformal passage type diffuser |
| CN105634209A (en) * | 2016-03-15 | 2016-06-01 | 冯亮 | Totally enclosed motor for achieving separate cooling of stator and rotor by dual-channel fan |
| CN106100238A (en) * | 2016-08-12 | 2016-11-09 | 中车永济电机有限公司 | The efficiently self-ventilated machine of cooling heat radiation |
| CN205758378U (en) * | 2016-04-21 | 2016-12-07 | 广东美的生活电器制造有限公司 | Wall-breaking machine |
| CN206503744U (en) * | 2017-02-22 | 2017-09-19 | 中山市索虹电器实业有限公司 | A kind of big Jing Yin broken wall cooking machine of air quantity that radiates |
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2017
- 2017-02-22 CN CN201710096535.7A patent/CN107044432B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05227702A (en) * | 1992-02-10 | 1993-09-03 | Toshiba Corp | Induction motor |
| CN201281045Y (en) * | 2008-09-16 | 2009-07-29 | 南京航空航天大学 | Conformal passage type diffuser |
| CN105634209A (en) * | 2016-03-15 | 2016-06-01 | 冯亮 | Totally enclosed motor for achieving separate cooling of stator and rotor by dual-channel fan |
| CN205758378U (en) * | 2016-04-21 | 2016-12-07 | 广东美的生活电器制造有限公司 | Wall-breaking machine |
| CN106100238A (en) * | 2016-08-12 | 2016-11-09 | 中车永济电机有限公司 | The efficiently self-ventilated machine of cooling heat radiation |
| CN206503744U (en) * | 2017-02-22 | 2017-09-19 | 中山市索虹电器实业有限公司 | A kind of big Jing Yin broken wall cooking machine of air quantity that radiates |
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| CN107044432A (en) | 2017-08-15 |
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