CN111963492A - Noise reduction device for electric automobile - Google Patents
Noise reduction device for electric automobile Download PDFInfo
- Publication number
- CN111963492A CN111963492A CN202010978488.0A CN202010978488A CN111963492A CN 111963492 A CN111963492 A CN 111963492A CN 202010978488 A CN202010978488 A CN 202010978488A CN 111963492 A CN111963492 A CN 111963492A
- Authority
- CN
- China
- Prior art keywords
- noise reduction
- air inlet
- ring
- electric automobile
- cover body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
- F01P5/04—Pump-driving arrangements
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
- F01P5/04—Pump-driving arrangements
- F01P2005/046—Pump-driving arrangements with electrical pump drive
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a noise reduction device of an electric automobile, which comprises a motor and a noise reduction device; the motor is fixedly connected with the noise reduction device; the noise reduction device comprises a fan, an air inlet device, an air outlet device and a cover body; an air inlet device and an air outlet device are respectively arranged on two sides of the cover body, and the air inlet device corresponds to the air outlet device in position; the air inlet device comprises a substrate, a first fixing ring, a first noise reduction groove, a second noise reduction groove, an air inlet, a connecting flange, a reinforcing rib, a shaft sleeve and a flange through hole; the invention greatly reduces the rotating noise of the motor, and the device has simple structure, obvious effect and strong practicability; the vibration generated when the motor works can be absorbed, the working stability of the motor is improved, and the noise generated by the fan is reduced.
Description
Technical Field
The invention relates to the technical field of noise reduction, in particular to a noise reduction device for an electric automobile.
Background
The electric automobile mainly adopts motor drive, and the electric automobile fan assembly is used for providing larger cold air exchange quantity for the heat exchange of heat exchangers such as an automobile radiator, a condenser, an intercooler and an oil cooler so as to change the heat flow field of an engine cabin. The existing automobile fan is generally of a backpack type and is assembled on a water chamber bracket of a radiator assembly through four-point installation. When the fan is used, the fan blades are driven by the motor to rotate to realize heat dissipation. The motor work can produce great shake, and under the effect of above-mentioned shake, can produce a large amount of noises, influence the experience of driving.
Disclosure of Invention
The invention aims to provide a noise reduction device for an electric automobile, which solves the problems in the prior art, can improve the working stability of a motor, has a simple structure and simple installation, and can greatly reduce the noise generated by the working of the motor and the working of a fan.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a noise reduction device of an electric automobile, which comprises:
a motor and a noise reduction device; the motor is fixedly connected with the noise reduction device;
the noise reduction device comprises a fan, an air inlet device, an air outlet device and a cover body; the air inlet device and the air outlet device are respectively arranged on two sides of the cover body, and the air inlet device corresponds to the air outlet device in position;
the air inlet device comprises a substrate, a first fixing ring, a first noise reduction groove, a second noise reduction groove and an air inlet; the substrate is fixedly arranged in the center of one side of the cover body; the inner wall of the base plate is provided with the air inlet along the central axis direction; the first fixing ring is arranged along the outer edge of the air inlet;
preferably, set up the base plate on the cover body for the stable connection structure with the motor, make the axle sleeve be connected with the motor more stable, reduce the motor rotatory with the noise that two productions of rocking of hot blast blowpipe apparatus.
The inner wall of the base plate is also provided with the first noise reduction groove and the second noise reduction groove; the first noise reduction grooves and the second noise reduction grooves are arranged in a plurality and are arranged along the central axial direction of the substrate; the second noise reduction groove is formed in the outer side of the first noise reduction groove, and the number of the second noise reduction grooves is more than that of the first noise reduction grooves.
Preferably, when the motor runs at a high speed, the rotating airflow enters the air inlet from outside to inside preferentially, and then impacts the first noise reduction groove and the second noise reduction groove firstly; due to the characteristic that the cyclone is from outside to inside, the number of the second noise reduction grooves arranged on the outer side is more than that of the first noise reduction grooves arranged on the inner side, so that the second noise reduction grooves can be reasonably utilized, and the rotating noise of the motor is reduced; the setting structure is simple, the effect is obvious, and the practicability is strong.
The air outlet device comprises an outer ring, a first connecting rib, a second connecting rib, an air outlet, a second fixing ring and a rubber ring; the air outlet is formed in the center of the other side of the cover body and corresponds to the air inlet; the outer ring is fixedly connected with the cover body through the first connecting ribs and the second connecting ribs; the first connecting ribs and the second connecting ribs are arranged along the center of the outer ring at intervals in the circumferential direction;
furthermore, the first connecting rib is of a straight rib structure, the second connecting rib is of an arc rib structure, and the first connecting rib and the second connecting rib are arranged in a crossed manner and are used for further enhancing the structural stability.
A second fixing ring is arranged in the outer ring; the second fixing ring is opposite to and fixedly connected with the outer ring, and the rubber ring is arranged in a gap formed between the outer peripheral surface of the outer ring and the inner peripheral surface of the second fixing ring.
Preferably, the rubber ring is arranged in a gap formed between the outer peripheral surface of the outer ring and the inner peripheral surface of the second fixing ring, so that the vibration generated during the operation of the motor can be better absorbed through the elastic deformation of the rubber ring, the installation strength of the air outlet device can be improved, the working stability of the motor can be improved, and the vibration of the fan during the operation can be reduced.
The second fixing ring is provided with a fixing pipeline along the direction of the air inlet; the fixed pipelines are parallel to the outer ring and are provided with at least one fixed pipeline; the rubber ring is provided with a fixing hole matched with the fixing pipeline.
Furthermore, a pressing ring which is right opposite to the rubber ring can be arranged at one end of the rubber ring, and the bolt penetrates through the pressing ring and is fixed with the fixed pipeline; the arrangement can increase the contact area between the rubber ring and the outer ring while the bolt positions the rubber ring, and further reduce the noise.
The air inlet device is also provided with a connecting flange and a shaft sleeve; the connecting flange is provided with at least one connecting flange and is arranged on the outer side wall of the substrate; the shaft sleeve is fixedly arranged on the edge of the inner side wall of the substrate and is fixedly connected with an output shaft of the motor.
The connecting flange is provided with a flange through hole; the base plate is in threaded connection with the cover body through the flange through hole.
The air inlet cover is also provided with reinforcing ribs; at least one reinforcing rib is arranged and is fixedly arranged along the circumferential direction of the outer side wall of the first fixing ring; and the bottom end of the reinforcing rib is fixedly connected with the surface of the substrate.
The cover body is of a square structure.
The first noise reduction groove and the second noise reduction groove are both in regular hexagon structures.
Preferably, the structure of the regular hexagon structure is more stable, and the noise reduction effect is better.
At least one crushing groove is formed in the side wall of the rubber ring.
Preferably, the rubber ring can be deformed more easily, and the effect of reducing the noise of the fan is more stable.
The invention discloses the following technical effects: the noise reduction groove is arranged, so that the rotating noise of the motor is greatly reduced, and the device is simple in structure, obvious in effect and strong in practicability; still set up the rubber circle between outer loop and the solid fixed ring of second, can absorb the vibrations that the motor during operation produced, improve the stability of motor work, reduce the noise that fan itself produced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic view of the structure of the air intake device of the present invention.
Fig. 2 is a schematic structural view of the air outlet device of the present invention.
FIG. 3 is a schematic view of the connection structure of the outer ring, the fixing ring and the rubber ring of the present invention.
The air inlet device 1, the air outlet device 2, the cover body 3, the base plate 11, the first fixing ring 12, the first noise reduction groove 13, the second noise reduction groove 14, the air inlet 15, the connecting flange 16, the reinforcing rib 17, the shaft sleeve 18, the flange through hole 19, the outer ring 21, the first connecting rib 22, the second connecting rib 23, the air outlet 24, the second fixing ring 25, the rubber ring 26 and the pipeline 27 are fixed.
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.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a noise reduction device of an electric automobile, which comprises:
a motor and a noise reduction device; the motor is fixedly connected with the noise reduction device;
the noise reduction device comprises a fan, an air inlet device 1, an air outlet device 2 and a cover body 3; an air inlet device 1 and an air outlet device 2 are respectively arranged on two sides of the cover body 3, and the air inlet device 1 corresponds to the air outlet device 2 in position;
the air intake device 1 comprises a substrate 11, a first fixing ring 12, a first noise reduction groove 13, a second noise reduction groove 14 and an air inlet 15; the base plate 11 is fixedly arranged at the center of one side of the cover body 3; an air inlet 15 is formed in the inner wall of the base plate 11 along the central axis direction; a first fixing ring 12 is arranged along the outer edge of the air inlet 15;
a first noise reduction groove 13 and a second noise reduction groove 14 are further formed in the inner wall of the base plate 11; the first noise reduction grooves 13 and the second noise reduction grooves 14 are arranged in plurality and are arranged along the central axial direction of the substrate 1; the second noise reduction grooves 14 are formed outside the first noise reduction grooves 13, and the number of the second noise reduction grooves 14 is larger than that of the first noise reduction grooves 13.
The air outlet device 2 comprises an outer ring 21, a first connecting rib 22, a second connecting rib 23, an air outlet 24, a second fixing ring 25 and a rubber ring 26; the air outlet 24 is arranged in the center of the other side of the cover body 3 and corresponds to the air inlet 15; the outer ring 21 is fixedly connected with the cover body 3 through a first connecting rib 22 and a second connecting rib 23; the first connecting ribs 22 and the second connecting ribs 23 are circumferentially arranged along the center of the outer ring 21 at intervals;
a second fixing ring 22 is arranged in the outer ring 21; the second fixing ring 22 is opposite to and fixedly connected with the outer ring 21, and a rubber ring 26 is arranged in a gap formed between the outer peripheral surface of the outer ring 21 and the inner peripheral surface of the second fixing ring 22.
The second fixing ring 22 is formed with a fixing duct 27 along the direction of the air inlet 24; the fixed tube 27 is parallel to the outer ring 21 and is provided with at least one; the rubber ring 26 is provided with a fixing hole matched with the fixing pipeline 27.
The air intake device 1 is also provided with a connecting flange 16 and a shaft sleeve 18; at least one connecting flange 16 is arranged on the outer side wall of the substrate 11; the shaft sleeve 18 is fixedly arranged on the edge of the inner side wall of the substrate 11 and is fixedly connected with an output shaft of the motor.
The connecting flange 16 is provided with a flange through hole 19; the base plate 11 and the cover body 3 are screwed through the flange through hole 19.
The air inlet cover 1 is also provided with a reinforcing rib 17; at least one reinforcing rib 17 is arranged and fixedly arranged along the circumferential direction of the outer side wall of the first fixing ring 12; and the bottom ends of the reinforcing ribs 17 are fixedly connected with the surface of the substrate 11.
The cover body 3 is of a square structure.
The first noise reduction groove 13 and the second noise reduction groove 14 are both in a regular hexagonal structure.
At least one crushing groove is arranged on the side wall of the rubber ring 26.
The invention discloses the following technical effects: the noise reduction groove is arranged, so that the rotating noise of the motor is greatly reduced, and the device is simple in structure, obvious in effect and strong in practicability; still set up the rubber circle between outer loop and the solid fixed ring of second, can absorb the vibrations that the motor during operation produced, improve the stability of motor work, reduce the noise that fan itself produced.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (9)
1. The utility model provides an electric automobile noise reduction device which characterized in that includes:
a motor and a noise reduction device; the motor is fixedly connected with the noise reduction device;
the noise reduction device comprises a fan, an air inlet device (1), an air outlet device (2) and a cover body (3); the air inlet device (1) and the air outlet device (2) are respectively arranged on two sides of the cover body (3), and the air inlet device (1) corresponds to the air outlet device (2);
the air inlet device (1) comprises a substrate (11), a first fixing ring (12), a first noise reduction groove (13), a second noise reduction groove (14) and an air inlet (15); the base plate (11) is fixedly arranged in the center of one side of the cover body (3); the inner wall of the base plate (11) is provided with the air inlet (15) along the direction of the central axis; the first fixing ring (12) is arranged along the outer edge of the air inlet (15);
the inner wall of the base plate (11) is also provided with a first noise reduction groove (13) and a second noise reduction groove (14); the first noise reduction grooves (13) and the second noise reduction grooves (14) are respectively provided with a plurality of noise reduction grooves and are axially arranged along the center of the base plate (1); the second noise reduction grooves (14) are formed in the outer side of the first noise reduction grooves (13), and the number of the second noise reduction grooves (14) is not smaller than that of the first noise reduction grooves (13).
2. The noise reduction device for the electric automobile according to claim 1, wherein: the air outlet device (2) comprises an outer ring (21), a first connecting rib (22), a second connecting rib (23), an air outlet (24), a second fixing ring (25) and a rubber ring (26); the air outlet (24) is formed in the center of the other side of the cover body (3) and corresponds to the air inlet (15); the outer ring (21) is fixedly connected with the cover body (3) through the first connecting rib (22) and the second connecting rib (23); the first connecting ribs (22) and the second connecting ribs (23) are arranged along the center of the outer ring (21) at intervals in the circumferential direction in a crossed mode;
a second fixing ring (22) is arranged in the outer ring (21); the second fixing ring (22) is opposite to and fixedly connected with the outer ring (21), and a gap is formed between the outer peripheral surface of the outer ring (21) and the inner peripheral surface of the second fixing ring (22) and is provided with the rubber ring (26).
3. The noise reduction device for the electric automobile according to claim 2, wherein: the second fixing ring (22) is provided with a fixing pipeline (27) along the direction of the air inlet (24); the fixed pipelines (27) are parallel to the outer ring (21) and are provided with at least one; the rubber ring (26) is provided with a fixing hole matched with the fixing pipeline (27); and is provided with bolts in the fixed pipe (27).
4. The noise reduction device for the electric automobile according to claim 1, wherein: the air inlet device (1) is also provided with a connecting flange (16) and a shaft sleeve (18); the connecting flange (16) is provided with at least one connecting flange and is arranged on the outer side wall of the base plate (11); the shaft sleeve (18) is fixedly arranged on the edge of the inner side wall of the base plate (11) and is fixedly connected with an output shaft of the motor.
5. The noise reduction device for the electric automobile according to claim 4, wherein: the connecting flange (16) is provided with a flange through hole (19); the base plate (11) and the cover body (3) are in threaded connection through the flange through hole (19).
6. The noise reduction device for the electric automobile according to claim 1, wherein: the air inlet cover (1) is also provided with a reinforcing rib (17); at least one reinforcing rib (17) is arranged and is fixedly arranged along the circumferential direction of the outer side wall of the first fixing ring (12); and the bottom end of the reinforcing rib (17) is fixedly connected with the surface of the substrate (11).
7. The noise reduction device for the electric automobile according to claim 1, wherein: the cover body (3) is of a square structure.
8. The noise reduction device for the electric automobile according to claim 1, wherein: the first noise reduction groove (13) and the second noise reduction groove (14) are both in a regular hexagon structure.
9. The noise reduction device for the electric automobile according to claim 2, wherein: at least one crushing groove is formed in the side wall of the rubber ring (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010978488.0A CN111963492A (en) | 2020-09-17 | 2020-09-17 | Noise reduction device for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010978488.0A CN111963492A (en) | 2020-09-17 | 2020-09-17 | Noise reduction device for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111963492A true CN111963492A (en) | 2020-11-20 |
Family
ID=73393443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010978488.0A Pending CN111963492A (en) | 2020-09-17 | 2020-09-17 | Noise reduction device for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111963492A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483473A (en) * | 2020-12-03 | 2021-03-12 | 中山市华南理工大学现代产业技术研究院 | Low-noise air blower |
-
2020
- 2020-09-17 CN CN202010978488.0A patent/CN111963492A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483473A (en) * | 2020-12-03 | 2021-03-12 | 中山市华南理工大学现代产业技术研究院 | Low-noise air blower |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111963492A (en) | Noise reduction device for electric automobile | |
| CN208168965U (en) | A kind of engine efficient combination radiator | |
| CN212454987U (en) | Noise reduction device for electric automobile | |
| CN203928191U (en) | Air-conditioner outdoor unit and adopt the air-conditioner of this air-conditioner outdoor unit | |
| CN203248242U (en) | Novel locomotive engine cooling device | |
| CN209943481U (en) | Speed reducer with good heat dissipation performance | |
| CN209083688U (en) | A kind of good centrifugal blower of heat dissipation performance | |
| CN201953465U (en) | Split type fan cover of engine cooling system | |
| CN102717806A (en) | Cooling device for motor train unit | |
| CN211975840U (en) | Protection device of worm gear speed reducer | |
| CN216647985U (en) | Transformer bottom blowing type fan mounting structure | |
| CN212508887U (en) | Low-noise high-speed centrifugal fan | |
| CN2833131Y (en) | Fan turning transmission device | |
| CN210799788U (en) | Mounting structure of three ball pins | |
| CN203009334U (en) | Internal recycling centrifugal fan for cooler of wind-driven generator | |
| CN221628445U (en) | Single-station direct-connection wind turbine | |
| CN201145492Y (en) | Novel motorcycle trapezoid pipe belt type water heat radiator | |
| CN217270947U (en) | Easy-to-clean centrifugal fan box convenient to assemble | |
| CN214617143U (en) | Vertical centrifugal fan of high platform installation | |
| CN220566302U (en) | Centrifugal fan convenient to cool down | |
| CN218773807U (en) | Motor assembly of dust collector | |
| CN210118894U (en) | Outdoor machine | |
| CN219096482U (en) | Cooling module integration of light new energy commercial vehicle | |
| CN217283917U (en) | Heat radiator for high-voltage inverter | |
| CN221568751U (en) | Chute stator inflating pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |