CN110752701A - Low-noise aluminum shell motor with sound absorption cover - Google Patents
Low-noise aluminum shell motor with sound absorption cover Download PDFInfo
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- CN110752701A CN110752701A CN201911036436.5A CN201911036436A CN110752701A CN 110752701 A CN110752701 A CN 110752701A CN 201911036436 A CN201911036436 A CN 201911036436A CN 110752701 A CN110752701 A CN 110752701A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/12—Machines characterised by means for reducing windage losses or windage noise
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a low-noise aluminum shell motor with a sound absorbing cover, which relates to the technical field of motors and comprises a motor shell, wherein a motor rotor is arranged in the motor shell, one end of the motor rotor extends to one side of the outer wall of the end part of the motor shell and is rotationally connected with the motor shell, the tail end of the motor shell is fixedly connected with a noise reduction device, a cooling device is arranged in the noise reduction device, and the tail end of the noise reduction device is fixedly connected with an air inlet sound insulation device. The noise reduction device comprises a motor shell, a noise reduction frame body, a noise reduction block and a heat dissipation component, wherein the noise reduction frame body is fixedly connected with the tail of the motor shell, the noise reduction block is arranged on the inner wall of the noise reduction frame body, the heat dissipation component can rotate at a high speed, and the noise reduction block is made of a porous material which has a plurality of fine open pore channels from the surface to the inside and can attenuate sound waves.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a low-noise aluminum shell motor with a sound absorption cover.
Background
High speed motors are generally motors with a rotational speed of more than 10000 r/min. Because the motor has high rotating speed, the volume is far smaller than that of a motor with ordinary power, the motor is connected with a prime motor, the traditional speed reducing mechanism is cancelled, the rotational inertia of the high-speed motor is small, and the like, the motor has the advantages of high power density, effective material saving, high transmission efficiency and low noise.
The high-speed motor is required to dissipate heat in the high-speed motor in the working process, the heat dissipation motor needs high-rotation-speed ratio to increase the air circulation volume for rapid cooling operation under the condition of high-speed operation, but the fan blades of the fan can generate noise with larger decibel when the heat dissipation motor drives the fan to operate at high speed. Therefore, it is necessary to provide a low noise aluminum-casing motor with a sound-absorbing cover to solve the above problems.
Disclosure of Invention
The invention aims to provide a low-noise aluminum shell motor with a sound absorbing cover to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a low-noise aluminum shell motor with a sound absorption cover comprises a motor shell, wherein a motor rotor is arranged inside the motor shell, one end of the motor rotor extends to one side of the outer wall of the end part of the motor shell and is rotatably connected with the motor shell, a noise reduction device is fixedly connected to the tail end of the motor shell, a cooling device is arranged inside the noise reduction device, and an air inlet sound insulation device is fixedly connected to the tail end of the noise reduction device;
the motor shell is characterized in that an angle iron connecting block is fixedly welded on one side of the outer surface of the motor shell, a fixing hole is formed in one side of the angle iron connecting block in a penetrating mode, and strip-shaped heat dissipation bulges are fixedly connected to two side faces, adjacent to the side face where the angle iron connecting block is arranged, of the motor shell.
Preferably, the noise reduction device comprises a sound insulation frame body and a noise reduction block, wherein the inner ring of the sound insulation frame body is fixedly sleeved at the tail end of the motor shell, four corners of the inner wall of the sound insulation frame body are fixedly connected with the noise reduction block, and the noise reduction block is provided with a noise reduction hole.
The maximum diameter of the opening position of the noise reduction hole is smaller than the minimum diameter in the inner cavity of the noise reduction hole, and the side wall of the noise reduction hole and the opening direction are arranged at an inclined angle of 100-150 degrees.
Preferably, the material of the noise reduction block is one or more of porous materials which have a plurality of fine open pore channels from the surface to the inside and are used for attenuating sound waves, such as PET (polyethylene terephthalate) fibers, centrifugal glass wool and expanded perlite products.
Preferably, the cooling device comprises a circular plate, an air inlet and fan blades, a heat dissipation motor is arranged at the tail end of the motor shell and inside the sound insulation frame, and the air inlet penetrates through the circular plate;
the fan blades are fixedly sleeved on an output shaft of the heat dissipation motor, and the circular plate is movably sleeved at the end part of the output shaft of the heat dissipation motor and limited by the limiting block to move up and down on the output shaft.
Preferably, the noise insulation that admits air includes afterbody air inlet cover, air inlet, water conservancy diversion piece and sound insulation baffle, the inner wall of afterbody air inlet cover cup joints through bolt fastening with the framework surface that gives sound insulation, the air inlet runs through the bottom of seting up at the afterbody air inlet cover, the inner wall of air inlet is located air inlet department fixedly connected with water conservancy diversion piece, the top of water conservancy diversion piece is located the air inlet and is connected with sound insulation baffle directly over, sound insulation hole is seted up on sound insulation baffle's top.
Preferably, the shape of the whole formed by the guide block and the sound-proof baffle is set to be an 'L' shape.
Preferably, the top of the sound insulation baffle plate is perforated with sound insulation holes, the maximum diameter of the upper and lower opening positions of the sound insulation holes is smaller than the minimum diameter of the interior of the sound insulation holes, and the sound insulation baffle plate (604) is made of one or more hard porous materials which are expanded perlite products and the like and have a plurality of fine open pores from the surface to the interior to attenuate sound waves.
Preferably, the top end of the motor shell is provided with heat dissipation holes, the heat dissipation holes penetrate through the whole motor shell from top to bottom and extend into the noise reduction device, the heat dissipation holes positioned on one side of the strip-shaped heat dissipation bulges are communicated with the strip-shaped heat dissipation bulges, and the heat dissipation holes are crescent in shape;
in addition, one end of the heat dissipation hole, which is positioned at the noise reduction device, is provided with a dust removal net.
The invention has the technical effects and advantages that:
1. the noise reduction device has the advantages that the noise reduction frame body is fixedly connected with the tail of the motor shell, the noise reduction block is arranged on the inner wall of the noise insulation frame body, the cooling fan rotating at high speed can be subjected to noise insulation and noise reduction operation through the noise reduction block, the noise reduction block is made of porous materials, a plurality of fine open pore channels are formed from the surface to the inside of the noise reduction block, sound waves are attenuated, the noise reduction and energy absorption effects are achieved, and noise generated by high-speed operation of a cooling component under the condition of high-speed rotation of a;
2. the fan blade noise reduction device is fixedly connected with the fan blades through the circular plate, the air inlet is formed in the circular plate, airflow can enter the fan blades through the air inlet, and the circular plate has the function of reducing noise disturbed by the fan blades and expanding outwards, so that the noise reduction effect is further improved;
3. according to the invention, the air inlet is formed at the bottom of the tail air inlet cover and the flow guide block is arranged at the air inlet, the top of the flow guide block is fixedly connected with the sound insulation baffle plate, and the sound insulation baffle plate is positioned right above the air inlet, so that a sound absorption cover for reducing sound linear propagation is formed at the position of the heat dissipation fan in the working process of the heat dissipation motor, the noise generated by the high-speed motor in the working process is further reduced, and the heat dissipation effect of the high-speed motor is not influenced;
4. according to the invention, the noise reduction holes and the sound insulation holes are designed into the special shape with the large opening of the inner cavity and the small opening of the inner cavity, so that the noise enters the noise reduction holes and the sound insulation holes by utilizing the principle of repeated refraction, the noise can be repeatedly refracted in the noise reduction holes and the sound insulation holes, the transmission time of the noise in the noise reduction holes and the sound insulation holes is prolonged, the noise absorption efficiency of the small open pore passages of the noise reduction block and the sound insulation baffle plate is improved, and the noise reduction effect is greatly increased.
Drawings
Fig. 1 is a schematic view of the overall structure of the motor of the present invention;
FIG. 2 is a side view of the motor of the present invention;
FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic cross-sectional view taken at A-A of FIG. 2 in accordance with the present invention;
FIG. 5 is a cross-sectional front view of the structure of FIG. 4 according to the present invention;
FIG. 6 is a schematic side view of the FIG. 3 assembly of the present invention;
FIG. 7 is a schematic view of a noise reduction aperture configuration of the present invention;
fig. 8 is a schematic view of the sound-insulating hole structure of the present invention.
In the figure: 1. a motor housing; 2. an angle iron connecting block; 3. a fixing hole; 4. a noise reduction device; 401. a sound insulating frame body; 402. a noise reduction block; 403. a noise reduction hole; 5. a cooling device; 501. a circular plate; 502. an air inlet; 503. a fan blade; 6. an air intake sound insulation device; 601. a tail air inlet cover; 602. an air inlet; 603. a flow guide block; 604. a sound insulation baffle; 605. a sound insulation hole; 7. the strip-shaped heat dissipation bulges are arranged on the base plate; 8. heat dissipation holes; 9. a rotor of an electric machine.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a low-noise aluminum shell motor with a sound absorption cover as shown in figures 1 to 8, which is combined with figure 1, and comprises a motor shell 1 forming the main body of the invention, and a motor rotor 9 capable of conveying and transmitting kinetic energy is arranged in the motor shell 1, wherein one end of the motor rotor 9 extends to one side of the outer wall of the end part of the motor shell 1 and is connected with the motor shell 1 in a rotating way, and meanwhile, one end of the motor rotor 9 can be connected with a connecting piece, so that the kinetic energy generated by the invention can be transmitted to the connecting piece by using the motor rotor 9.
In addition, a noise reduction device 4 for reducing noise generated by the operation of the motor is fixedly arranged at the tail part of the motor shell 1, and an air inlet sound insulation device 6 for sound insulation is fixedly connected at the tail part of the noise reduction device 4.
Furthermore, an angle iron connecting block 2 with a fixing hole 3 is welded and fixed on one side of the outer surface of the motor shell 1, so that the motor can be fixed by fixing the angle iron connecting block 2 with other connecting pieces, and other influence factors such as shaking and the like during the operation of the motor are avoided; meanwhile, the motor of the invention can be fixed not only by the angle iron connecting block 2, but also by other fixing structures, such as a motor fixing structure disclosed in the authorized publication number CN 202772694U.
Meanwhile, the motor shell 1 and the side face provided with the angle iron connecting block 2 are fixedly connected with the strip-shaped heat dissipation bulges 7, and the contact area between the motor shell 1 and the external environment can be increased due to the arrangement of the strip-shaped heat dissipation bulges 7, so that the heat dissipation efficiency is improved.
More specifically, as shown in fig. 3 and 4, the noise reduction device 4 includes a sound insulation frame 401 and a noise reduction block 402, an inner ring of the sound insulation frame 401 is fixedly sleeved on the tail end of the motor housing 1, and four corners of an inner wall of the sound insulation frame 401 are fixedly connected with the noise reduction block 402; the number and the positions of the noise reduction blocks 402 are not limited to the above, and it is only required to ensure that the number of the noise reduction blocks 402 is at least four, and the plurality of noise reduction blocks 402 surround the inner wall of the sound insulation frame 401, and the arrangement of the plurality of noise reduction blocks 402 cannot affect the arrangement of other structures.
Simultaneously, the noise reduction block 402 is made of one or more porous materials such as PET (polyethylene terephthalate) fibers, centrifugal glass wool, expanded perlite products and the like, a plurality of fine open pore channels are formed from the surface to the inside of the noise reduction block 402 to attenuate sound waves, the pore channels of the noise reduction block 402 are used for absorbing sound to gradually attenuate the generated sound waves, the vibration caused by solid sound and air chamber air sound can be weakened, and meanwhile, the noise reduction block 402 which is porous to the noise reduction block is arranged on the motor, so that the sound insulation capacity can be improved, and the structure weight can be reduced.
Then, the noise reduction block 402 is provided with noise reduction holes 403, and the noise generated by the high-speed motor under the condition of high-speed rotation can be reduced by utilizing the noise reduction and energy absorption functions of the noise reduction holes 403.
In addition, the air inlet sound-proof device 6 comprises a tail air inlet cover 601, an air inlet 602, a flow guide block 603 and a sound-proof baffle 604, wherein the inner wall of the tail air inlet cover 601 is fixedly sleeved with the outer surface of the sound-proof frame 401 through bolts, the air inlet 602 penetrates through the bottom end of the tail air inlet cover 601, the flow guide block 603 is fixedly arranged on the inner wall of the air inlet 602 and is positioned at the air inlet, the sound-proof baffle 604 is fixed at the top of the flow guide block and is positioned right above the air inlet 602, in the working process of the heat dissipation motor, a sound absorption cover for reducing sound linear propagation is formed at the position of the heat dissipation fan, noise generated in the working process of the high-speed motor is reduced, and the heat dissipation.
According to another embodiment, sound insulation holes 605 are formed through the top of the sound insulation baffle 604, and the sound insulation holes 605 can provide an effect of absorbing and refracting the noise transmission, thereby improving the sound absorption efficiency of the sound insulation baffle 604.
Furthermore, the whole shape that water conservancy diversion piece 603 and sound insulation baffle 604 formed sets to "L" shape, be convenient for to the sound wave transmission direction, and sound insulation baffle 604's material sets to one or more in the stereoplasm porous material that expanded perlite product etc. surface to inside had many tiny open pore ways to make the sound wave decay, compare with present direct metal material that passes through, utilize the pore way that sound insulation baffle 604 material self has to absorb sound and make its produced sound wave attenuate gradually, can also weaken the vibration that solid sound and air-chamber gas sound arouse, set up porous sound insulation baffle 604 to the setting on the motor simultaneously, not only can improve sound-insulating ability, but also can alleviate structure weight.
According to the low-noise aluminum-shell motor with the sound absorption cover provided by the invention, as shown in fig. 3, 4 and 5, the low-noise aluminum-shell motor further comprises a cooling device 5 which is arranged inside the noise reduction device 4 and used for dissipating heat generated by the motor in the running process, wherein:
the cooling device 5 comprises a circular plate 501, an air inlet 502 and fan blades 503, and a heat dissipation motor is arranged at the tail part of the motor housing 1 and inside the sound insulation frame 401, wherein the fan blades 503 are fixedly sleeved on an output shaft of the heat dissipation motor, and the circular plate 501 is movably sleeved at the end part of the output shaft of the heat dissipation motor and is limited by a limiting block to move up and down on the output shaft; more specifically, the circular plate 501 is connected with the output shaft in a rotating manner, so that the circular plate 501 does not rotate or slightly rotates along with the rotation of the output shaft, in addition, the fan blades 503 rotate along with the rotation of the output shaft, a pressure difference is formed by utilizing the difference between the rotating speeds of the fan blades 503 and the circular plate 501, so that the pressure between the circular plate 501 and the fan blades 503 is smaller, suction force is generated, heat generated by the operation of the motor of the invention is absorbed to the fan blades 503 through the air inlet holes 502 arranged on the circular plate 501, and finally the heat is discharged to the outside through the heat dissipation holes 8 arranged on the motor housing 1.
In addition, the circular plate 501 has the function of reducing outward expansion of noise, thereby further improving the noise reduction effect.
More specifically, the heat dissipation holes 8 penetrate through the entire motor housing 1 from top to bottom on the motor housing 1 and extend into the noise reduction device 4, and the heat dissipation holes 8 located on one side of the strip-shaped heat dissipation protrusions 7 are communicated with the strip-shaped heat dissipation protrusions 7, so that the hot air flow at the fan blades 503 can be guided out to the outside through the heat dissipation holes 8 to form heat exchange with the air entering the air inlet 602, and the heat dissipation effect of the high-speed motor is improved.
Further, the shape of the heat dissipation hole 8 may be crescent or fish scale, etc., which may increase the contact area, and is not further described in this application.
In addition, a dust removal net can be arranged at one end of the heat dissipation hole 8, which is positioned at the noise reduction device 4, so that external dust or impurities can be effectively reduced from entering the noise reduction device 4 through the heat dissipation hole 8, the damage of each electrical element in the motor due to short circuit is greatly reduced, and the service life of the motor is greatly prolonged.
As shown in fig. 7 and 8, the maximum diameter of the opening position of the noise reduction hole 403 is set to be smaller than the minimum diameter in the cavity of the noise reduction hole 403, and the sidewall of the noise reduction hole 403 is set at an inclination angle of 100 ° to 150 ° with respect to the opening direction, where the inclination angle is only a region value, which may be specified to a specific angle of 100 ° to 150 °, such as 100 ° and 120 °, or 125 °, and is not specifically limited herein, and may be specifically limited during production according to the material or size of the noise reduction block 402;
meanwhile, the maximum diameter of the upper opening and the lower opening of the sound insulation hole 605 is smaller than the minimum diameter of the interior of the sound insulation hole 605, and the specific size and the specific limitation are made similarly to the noise reduction block 402 during production;
more specifically, the inner walls of the noise reduction holes 403 and the sound insulation holes 605 can be set to be linear, arc, corrugated or other shapes, and the maximum diameter of the openings of the noise reduction holes 403 and the sound insulation holes 605 is only required to be smaller than the minimum diameter of the inner cavity;
through the arrangement, the noise enters the noise reduction holes 403 and the sound insulation holes 605 by utilizing the principle of multiple refraction, so that the noise can be repeatedly refracted in the noise reduction holes 403 and the sound insulation holes 605 to improve the transmission time of the noise in the noise reduction holes 403 and the sound insulation holes 605, the noise absorption efficiency of fine open pore channels of the noise reduction block 402 and the sound insulation baffle 604 is improved, and the noise reduction effect is greatly improved;
according to another embodiment, in order to improve the sound absorption efficiency of the noise reduction holes 403 and the soundproof holes 605, the noise reduction holes 403 and the soundproof holes 605 may be filled with sound absorption cotton, and the filling of the sound absorption cotton may not affect the properties of the noise reduction holes 403 and the soundproof holes 605 themselves, thereby improving the noise reduction efficiency through a dual sound absorption effect.
The working principle of the invention is as follows:
the high-speed motor is a variable frequency motor and is controllable in speed, the rotating speed of the heat dissipation motor is increased when the rotating speed of the high-speed motor is gradually increased, when the rotating speed of a heat dissipation fan of the high-speed motor is too high, the heat dissipation motor drives the fan blades 503 to rotate, noise is generated, the fan blades 503 can form a sound insulation cover through the sound insulation frame body 401 arranged at the fan blades 503 and the tail air inlet cover 601, the sound of the fan is reduced, and energy absorption and noise reduction operations can be performed on the noise generated when the fan blades rotate through the noise reduction block 402 arranged at the inner wall of the sound insulation frame body 401 and positioned at the fan blades 503;
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a low noise aluminum hull motor with sound absorbing cover, includes motor casing (1), its characterized in that: a motor rotor (9) is arranged inside the motor shell (1), one end of the motor rotor (9) extends to one side of the outer wall of the end part of the motor shell (1) and is rotatably connected with the motor shell (1), a noise reduction device (4) is fixedly connected to the tail end of the motor shell (1), a cooling device (5) is arranged inside the noise reduction device (4), and an air inlet sound insulation device (6) is fixedly connected to the tail end of the noise reduction device (4);
the motor casing is characterized in that an angle iron connecting block (2) is fixedly welded on one side of the outer surface of the motor casing (1), a fixing hole (3) is formed in one side of the angle iron connecting block (2) in a penetrating mode, and strip-shaped heat dissipation bulges (7) are fixedly connected to the two side faces, adjacent to the side faces, of the motor casing (1) and the side faces, provided with the angle iron connecting block (2).
2. The low-noise aluminum-casing motor with the sound-absorbing cover according to claim 1, wherein: the noise reduction device (4) comprises a sound insulation frame body (401) and a noise reduction block (402), wherein the inner ring of the sound insulation frame body (401) is fixedly sleeved at the tail end of the motor shell (1), four corners of the inner wall of the sound insulation frame body (401) are fixedly connected with the noise reduction block (402), and a noise reduction hole (403) is formed in the noise reduction block (402).
3. The low-noise aluminum-casing motor with the sound-absorbing cover according to claim 2, wherein: the maximum diameter of the opening position of the noise reduction hole (403) is smaller than the minimum diameter in the inner cavity of the noise reduction hole (403), and the side wall of the noise reduction hole (403) is arranged at an inclined angle of 100-150 degrees with the opening direction.
4. The low-noise aluminum-casing motor with the sound-absorbing cover according to claim 2, wherein: the material of the noise reduction block (402) is set to be one or more of porous materials such as PET polyester fiber, centrifugal glass wool, expanded perlite products and the like, wherein a plurality of fine open pore channels are formed from the surface to the inside of the porous materials to attenuate sound waves.
5. A low noise aluminum housing motor with a sound absorbing cover as set forth in claim 3, wherein: the cooling device (5) comprises a circular plate (501), an air inlet (502) and fan blades (503), a heat dissipation motor is arranged at the tail end of the motor shell (1) and inside the sound insulation frame body (401), and the air inlet (502) penetrates through the circular plate (501);
the fan blades (503) are fixedly sleeved on an output shaft of the heat dissipation motor, and the circular plate (501) is movably sleeved at the end part of the output shaft of the heat dissipation motor and limits the circular plate (501) to move up and down on the output shaft through a limiting block.
6. The low-noise aluminum-casing motor with the sound-absorbing cover according to claim 4, wherein: admit air noise insulation (6) and include afterbody air intake cover (601), air inlet (602), water conservancy diversion piece (603) and baffle (604) give sound insulation, the inner wall of afterbody air intake cover (601) cup joints through bolt fastening with sound insulation framework (401) surface, air inlet (602) run through and set up the bottom at afterbody air intake cover (601), the inner wall of air inlet (602) is located air inlet (602) fixedly connected with water conservancy diversion piece (603), the top of water conservancy diversion piece (603) is located air inlet (602) directly over fixedly connected with baffle (604) gives sound insulation.
7. The low-noise aluminum-casing motor with the sound-absorbing cover according to claim 6, wherein: the overall shape formed by the flow guide block (603) and the sound insulation baffle (604) is set to be L-shaped.
8. The low-noise aluminum-casing motor with the sound-absorbing cover according to claim 6, wherein: the sound insulation baffle (604) is characterized in that sound insulation holes (605) are formed in the top of the sound insulation baffle (604) in a penetrating mode, the maximum diameter of the upper opening position and the lower opening position of each sound insulation hole (605) is smaller than the minimum diameter of the interior of each sound insulation hole (605), and the sound insulation baffle (604) is made of one or more of hard porous materials which are made of expanded perlite products and the like, have a plurality of fine open pore channels from the surface to the interior and attenuate sound waves.
9. The low-noise aluminum-casing motor with the sound-absorbing cover according to claim 1, wherein: the top end of the motor shell (1) is provided with heat dissipation holes (8), the heat dissipation holes (8) penetrate through the whole motor shell (1) from top to bottom and extend into the noise reduction device (4), the heat dissipation holes (8) located on one side of the strip-shaped heat dissipation bulges (7) are communicated with the strip-shaped heat dissipation bulges (7), and the heat dissipation holes (8) are crescent in shape;
in addition, one end of the heat dissipation hole (8) positioned at the noise reduction device (4) is provided with a dust removal net.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911036436.5A CN110752701B (en) | 2019-10-29 | 2019-10-29 | Low-noise aluminum shell motor with sound absorption cover |
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| CN201911036436.5A CN110752701B (en) | 2019-10-29 | 2019-10-29 | Low-noise aluminum shell motor with sound absorption cover |
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| CN110752701A true CN110752701A (en) | 2020-02-04 |
| CN110752701B CN110752701B (en) | 2020-10-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113794316A (en) * | 2021-11-01 | 2021-12-14 | 苏州福格纳机电有限公司 | Noise reduction device of high-rotating-speed brushless motor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201813283U (en) * | 2010-09-28 | 2011-04-27 | 南阳防爆集团股份有限公司 | High-voltage and efficient increased safety type three-phase asynchronous motor |
| CN201839175U (en) * | 2010-10-29 | 2011-05-18 | 南阳防爆集团股份有限公司 | High-tension compact type low-noise three-phase asynchronous motor |
| CN106253542A (en) * | 2016-08-29 | 2016-12-21 | 湖州华和金属制品有限公司 | Noise abatement motor cover |
| CN107359721A (en) * | 2017-08-03 | 2017-11-17 | 皖西学院 | A kind of switched reluctance machines with damping and fixing function |
| CN108808962A (en) * | 2018-06-26 | 2018-11-13 | 张志通 | A kind of motor with shock-absorbing function |
| US20190113045A1 (en) * | 2017-10-13 | 2019-04-18 | Ametek, Inc. | Motor-fan assembly with improved airflow and noise reduction properties |
| CN209025870U (en) * | 2018-10-22 | 2019-06-25 | 江苏精彩风机制造有限公司 | One kind can effectively reduce noise formula explosion-proof fan |
| CN209088706U (en) * | 2018-11-23 | 2019-07-09 | 鼎思科技(天津)有限公司 | A kind of heat dissipation denoising device of mobile generator |
-
2019
- 2019-10-29 CN CN201911036436.5A patent/CN110752701B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201813283U (en) * | 2010-09-28 | 2011-04-27 | 南阳防爆集团股份有限公司 | High-voltage and efficient increased safety type three-phase asynchronous motor |
| CN201839175U (en) * | 2010-10-29 | 2011-05-18 | 南阳防爆集团股份有限公司 | High-tension compact type low-noise three-phase asynchronous motor |
| CN106253542A (en) * | 2016-08-29 | 2016-12-21 | 湖州华和金属制品有限公司 | Noise abatement motor cover |
| CN107359721A (en) * | 2017-08-03 | 2017-11-17 | 皖西学院 | A kind of switched reluctance machines with damping and fixing function |
| US20190113045A1 (en) * | 2017-10-13 | 2019-04-18 | Ametek, Inc. | Motor-fan assembly with improved airflow and noise reduction properties |
| CN108808962A (en) * | 2018-06-26 | 2018-11-13 | 张志通 | A kind of motor with shock-absorbing function |
| CN209025870U (en) * | 2018-10-22 | 2019-06-25 | 江苏精彩风机制造有限公司 | One kind can effectively reduce noise formula explosion-proof fan |
| CN209088706U (en) * | 2018-11-23 | 2019-07-09 | 鼎思科技(天津)有限公司 | A kind of heat dissipation denoising device of mobile generator |
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| CN113794316A (en) * | 2021-11-01 | 2021-12-14 | 苏州福格纳机电有限公司 | Noise reduction device of high-rotating-speed brushless motor |
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