CN114688638A - Fan structure and air conditioner - Google Patents
Fan structure and air conditioner Download PDFInfo
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- CN114688638A CN114688638A CN202011561680.6A CN202011561680A CN114688638A CN 114688638 A CN114688638 A CN 114688638A CN 202011561680 A CN202011561680 A CN 202011561680A CN 114688638 A CN114688638 A CN 114688638A
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- Prior art keywords
- noise reduction
- noise
- housing
- shell
- wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/40—Vibration or noise prevention at outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The embodiment of the invention provides a fan structure and an air conditioner, wherein the fan structure comprises a shell, a communicating cavity is arranged in the shell, a plurality of openings are formed in the side wall of the shell, and the shell can rotate; the noise reduction structures are arranged in the shell, one end of each noise reduction structure is communicated to the communicating cavity, the other end of each noise reduction structure is communicated with the opening, and each noise reduction structure comprises a plurality of bent channels; and the blades are arranged on the outer wall of the shell. According to the technical scheme, the noise reduction structure in the fan structure can effectively reduce noise, improve the mute performance of equipment and improve the use experience of a user.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to a fan structure and an air conditioner.
Background
With the development of air conditioners, it is desired to use smaller boxes to realize the refrigerating capacity of large boxes, and counter-rotating air conditioner external units are beginning to appear, that is, counter-rotating axial fans are adopted by the air conditioner external units to overcome the resistance increase caused by the large air volume of small boxes. However, the counter-rotating axial flow outdoor unit is generally applied to a small box body under the premise of high wind pressure and large wind volume, and the noise is generally high.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
In view of this, a first aspect of the embodiments of the present invention provides a fan structure.
A second aspect of an embodiment of the present invention provides an air conditioner.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a fan structure, which includes a casing, a communicating cavity is disposed in the casing, a plurality of openings are disposed on a side wall of the casing, and the casing is capable of rotating; the noise reduction structures are arranged in the shell, one end of each noise reduction structure is communicated to the communicating cavity, the other end of each noise reduction structure is communicated with the opening, and each noise reduction structure comprises a plurality of bent channels; and the plurality of blades are arranged on the outer wall of the shell.
According to an embodiment of the first aspect of the present invention, there is provided a fan structure including a housing, the housing being rotatable. A communicating cavity is arranged in the shell, and a plurality of openings are arranged on the side wall of the shell. One end of each noise reduction structure in the shell is communicated to the communicating cavity, the other end of each noise reduction structure is communicated with the opening, and each noise reduction structure comprises a plurality of bent channels. The outer wall of the shell is provided with a plurality of blades, and when the shell drives the blades to rotate, the fan structure can generate wind. In this process, the rotation of the blades inevitably generates noise. Because the blades are arranged on the shell, noise generated by the rotation of the blades can enter the plurality of openings on the side wall of the shell and is transmitted into the shell. The noise reduction structure is arranged in the shell, and noise can enter the plurality of bent channels in the noise reduction structure after being transmitted into the noise reduction structure. Because the one end of all the noise reduction structures is connected through the communicating cavity, the noise can be propagated along different bending channels, and simultaneously, the noise reduction effect is finally realized under the interaction of the propagation process.
Further, the noise reduction structure can be formed by separating the internal cavity of the shell, and the noise reduction structure can be simplified by the structure.
The noise reduction structures are not communicated with each other except for being connected through the communicating cavity, so that noise reduction can be independently realized. The communicating chamber is a cavity inside the housing, and it can be understood that the communicating chamber is usually disposed at the center of the housing so as to communicate with each noise reduction structure. Through set up the intercommunication chamber in casing inside, can realize each and fall mutual cooperation between making an uproar, realize falling jointly and fall the noise.
Generally, the casing may be a cylindrical, circular, conical, etc. equiaxed symmetrical structure, the noise reducing structures are uniformly distributed along the axial direction, and when the casing rotates along the axial direction, the openings of the casing may introduce the peripheral airflow part into the noise reducing structures to reduce the noise. The structure can greatly improve the mute performance of the equipment which generates noise due to the rotation of the equipment and drives the air flow, and improve the use experience of users.
In addition, the fan structure in the above scheme provided by the invention can also have the following additional technical characteristics:
among the above-mentioned technical scheme, fan structure of making an uproar falls includes a plurality of baffles, forms the passageway of buckling between a plurality of baffles.
In this technical scheme, the structure of making an uproar falls includes a plurality of baffles, forms the tortuous passageway between a plurality of baffles, and sound can propagate in the tortuous passageway. In the process that the noise is propagated in the bent channel, the noise can also interact in the bent channel, and finally the noise is reduced or eliminated.
In the above technical solution, the plurality of baffles specifically include: one end of the side plate is connected with the side wall of the shell, and the other end of the side plate extends towards the communication cavity; one end of the rib plate is connected with the side plate, and the extending direction of the rib plate is not parallel to the extending direction of the side plate.
In the technical scheme, the baffle comprises an edge plate and a rib plate. Wherein, the sideboard is connected with the lateral wall of casing, and the other end extends to the intercommunication chamber. It will be appreciated that the edge panels serve both to form the walls of the noise reducing structure and to separate adjacent noise reducing structures.
One end of the rib plate is connected with the side plate, the extending direction of the rib plate is not parallel to the extending direction of the side plate, so that a certain angle can be formed between the rib plate and the side plate, and finally, the plurality of baffles jointly form an internal passage of the noise reduction structure capable of changing the gas flow direction.
It should be noted here that, the rib plates inside the same noise reduction structure and the adjacent rib plates are respectively connected with different side plates, so that the noise can be transmitted in a zigzag manner in the noise reduction structure, the transmission distance of the noise in the noise reduction structure is increased, and the noise reduction effect is further increased.
Among the above-mentioned technical scheme, the sideboard radially extends along the casing, and the casing includes: one end of the outer wall plate is connected with the outer end of the side plate, the outer wall plate extends along the circumferential direction of the shell, and an opening is formed between the other end of the outer wall plate and the other side plate; and one end of the inner wall plate is connected with the inner end of the side plate, and the inner wall plate extends along the circumferential direction of the shell, wherein a communication cavity is formed by surrounding a plurality of inner wall plates, and a via hole communicated with the communication cavity is formed between the other end of each inner wall plate and the other side plate.
In this technical scheme, the one end of outer wallboard links to each other with the outer end of sideboard to extend along the circumference of casing, and form the opening between another sideboard. The plurality of outer wall plates jointly form the side wall of the shell. For punching at the lateral wall specially and forming the opening, the opening that this kind of mode formed, the structure is simpler, and open-ended one end is the sideboard moreover, more does benefit to the structure air inlet of making an uproar of falling.
One end of the inner wall plate is connected with the inner end of the side plate and extends along the circumferential direction of the shell, the inner wall plates surround to form a communicating cavity, and a via hole which can be communicated to the communicating cavity is formed between the other end of the inner wall plate and the other side plate. It can be understood that the inner wall plate is the wall plate with the noise reduction structure closest to the center of the shell, and gas can enter the communication cavity from the via hole between the inner wall plate and the other side plate to realize the communication between the noise reduction structures.
In the above technical solution, the extending direction of the opening is not parallel to the axial direction of the housing.
In this solution, the housing has a certain thickness in its axial direction, and the direction of extension of the opening, i.e. the direction relative to the thickness of the housing, is not parallel to the axial direction of the housing. It will be appreciated that the airflow may more easily pass from the opening into the noise reducing structure when the housing is rotated in the axial direction.
Further, when the noise reduction structure is used for reducing noise of fan blades of a fan or the like, besides forming air flow in the circumferential direction of the casing, the casing may also have air flow in the axial direction. The extending direction of the opening is not parallel to the axial direction of the shell, so that noise can enter the opening more fully.
Among the above-mentioned technical scheme, a plurality of structures of making an uproar of falling evenly set up along the circumference of casing.
In this technical scheme, evenly set up the structure of making an uproar of falling along the circumference of casing for can both be effectively made an uproar of falling from casing different positions in circumference.
In addition, the noise reduction structure is uniformly distributed, so that the inner structure of the shell is more uniform, the circumferential weight distribution of the shell is more balanced, and the shell is more stable in rotation.
Among the above-mentioned technical scheme, the fan structure still includes: inhale the sound piece, locate in the casing, just inhale the sound piece and locate on the baffle of making an uproar structure of making an uproar.
In the technical scheme, a sound absorbing piece is arranged in the shell and arranged on the baffle. Obviously, after the airflow enters the noise reduction structure from the opening, the airflow passes through the baffle and is subjected to multiple steering under the action of the baffle, and noise is eliminated in the steering process of the airflow. Set up on the baffle and inhale the sound piece, noise abatement that can be more effective. In addition, because the sound absorbing piece has the function of eliminating noise, a smaller number of baffles can be used to realize the same noise reduction function, thereby simplifying the internal structure of the shell.
Among the above-mentioned technical scheme, the quantity of casing is two, and two coaxial settings of casing, wherein, the rotation direction of blade is opposite on two casings.
In the technical scheme, the number of the shells is two, and the shells are coaxially arranged. The shell is provided with a plurality of blades, and the rotating directions of the blades on the two shells are opposite to each other, so that the disrotatory axial flow fan is formed. The fan structure can realize large air volume of a small-sized fan, but the noise of the small-sized fan is usually high. The noise reduction structure in the shell can reduce the noise of the fan structure and improve the silencing effect.
According to a second aspect of the present invention, there is provided an air conditioner, comprising: an apparatus body; as in any of the embodiments of the first aspect, the blower structure is disposed within the device body.
According to a second aspect of the present invention, an air conditioner is provided, which includes an apparatus body and a fan structure disposed on the apparatus body.
In addition, the air conditioner includes any fan structure of the above-mentioned first aspect, so has any beneficial effect of the above-mentioned first aspect embodiment, and is not repeated here.
Among the above-mentioned technical scheme, the equipment body includes: the indoor unit and the outdoor unit are connected through pipelines; the fan structure is arranged in the outdoor unit.
In the technical scheme, the equipment body comprises the outdoor unit and the indoor unit which are connected through the pipeline, the fan structure is arranged outside the outdoor unit, and noise of the outdoor unit can be reduced while the outdoor unit generates wind.
Drawings
FIG. 1 illustrates a schematic structural view of a fan structure according to one embodiment of the present invention;
FIG. 2 shows a schematic cross-sectional view of a fan structure according to an embodiment of the invention;
FIG. 3 illustrates a schematic top view of a fan structure according to an embodiment of the present invention;
FIG. 4 shows a schematic cross-sectional view of a fan structure according to an embodiment of the invention;
fig. 5 is a schematic structural view illustrating an air conditioner according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:
102: a housing; 104: a communicating cavity; 106: a noise reduction structure; 108: an opening; 110: a baffle plate; 112: a side plate; 114: a rib plate; 116: an outer wall panel; 118: an inner wall panel; 120: a via hole; 122: a sound absorbing member; 200: a fan structure; 202: a blade; 300: an outdoor unit; 400: an air conditioner; 402: an indoor unit; 404: the equipment body.
Detailed Description
In order that the above objects, features and advantages of the embodiments of the present invention can be more clearly understood, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, embodiments of the present invention may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.
Some embodiments according to the invention are described below with reference to fig. 1 to 5.
Example one
As shown in fig. 1, 2, and 4, the blower structure 200 according to the present embodiment includes a housing 102, and the housing 102 is capable of rotating. A communication chamber 104 is provided in the housing 102, and a plurality of openings 108 are provided in a side wall of the housing 102. A plurality of noise reducing structures 106 within the housing 102 are connected at one end to the communication cavity 104 and at the other end to the opening 108, wherein each noise reducing structure 106 includes a plurality of tortuous channels. A plurality of blades 202 are disposed on an outer wall of the housing 102, and when the housing 102 drives the blades 202 to rotate, the fan structure 200 generates wind. In this process, the rotation of the blade 202 inevitably generates noise. Since the blades 202 are disposed on the housing 102, noise generated by the rotation of the blades 202 enters the plurality of openings 108 in the sidewall of the housing 102 and is transmitted into the housing 102. A noise reduction structure 106 is disposed in the housing 102, and noise transmitted into the noise reduction structure 106 enters the plurality of bending channels in the noise reduction structure 106. Because one end of each noise reduction structure 106 is connected through the communication cavity 104, noise can propagate along different bending channels and interact in the propagation process, and finally the noise reduction effect is achieved.
Further, the noise reduction structure 106 may be formed by partitioning the internal cavity of the housing 102, which may simplify the noise reduction structure 106.
The noise reduction structures 106 are not communicated with each other except through the communication cavity 104, so that noise reduction can be realized independently. The communication chamber 104 is a cavity within the housing 102, and it will be appreciated that the communication chamber 104 is generally centrally located within the housing 102 to facilitate communication with the respective noise reduction structure 106. By arranging the communication cavity 104 in the shell 102, the mutual cooperation between the noise reduction can be realized, and the noise reduction can be realized together.
Generally, the housing 102 may be a cylindrical, circular, conical, etc. structure with the noise reducing structures 106 evenly distributed along the axial direction, and the openings 108 on the housing 102 may introduce the peripheral airflow portion into the noise reducing structures 106 to reduce the noise thereof when the housing 102 rotates along the axial direction. The structure can greatly improve the mute performance of the equipment which generates noise due to the rotation of the equipment and drives the air flow, and improve the use experience of users.
Example two
As shown in fig. 1, 2, and 4, the blower structure 200 according to the present embodiment includes a housing 102, and the housing 102 is capable of rotating. A communication chamber 104 is provided in the housing 102, and a plurality of openings 108 are provided in a side wall of the housing 102. A plurality of noise reducing structures 106 within the housing 102 are connected at one end to the communication cavity 104 and at the other end to the opening 108, wherein each noise reducing structure 106 includes a plurality of tortuous channels. A plurality of blades 202 are disposed on an outer wall of the housing 102, and when the housing 102 drives the blades 202 to rotate, the fan structure 200 generates wind. In this process, the rotation of the blade 202 inevitably generates noise. Because the blades 202 are disposed on the housing 102, noise generated by the rotation of the blades 202 may enter the plurality of openings 108 in the sidewall of the housing 102 and be transmitted into the housing 102. A noise reduction structure 106 is disposed in the housing 102, and noise transmitted into the noise reduction structure 106 enters the plurality of bending channels in the noise reduction structure 106. Because one end of each noise reduction structure 106 is connected through the communication cavity 104, noise can propagate along different bending channels and interact in the propagation process, and finally the noise reduction effect is achieved.
Further, the noise reduction structure 106 may be formed by partitioning the internal cavity of the housing 102, which may simplify the noise reduction structure 106.
The noise reduction structures 106 are not communicated with each other except through the communication cavity 104, so that noise reduction can be realized independently. The communication chamber 104 is a cavity within the housing 102, and it will be appreciated that the communication chamber 104 is generally centrally located within the housing 102 to facilitate communication with the respective noise reduction structure 106. By arranging the communication cavity 104 in the shell 102, the mutual cooperation between the noise reduction can be realized, and the noise reduction can be realized together.
Generally, the housing 102 may be a cylindrical, circular, conical, etc. structure with the noise reducing structures 106 evenly distributed along the axial direction, and the openings 108 on the housing 102 may introduce the peripheral airflow portion into the noise reducing structures 106 to reduce the noise thereof when the housing 102 rotates along the axial direction. The structure can greatly improve the mute performance of the equipment which generates noise due to the rotation of the equipment and drives the air flow, and improve the use experience of users.
Further, the noise reduction structure 106 includes a plurality of baffles 110, and the plurality of baffles 110 form a tortuous path therebetween within which sound may travel. In the process that the noise is propagated in the bent channel, the noise can also interact in the bent channel, and finally the noise is reduced or eliminated.
EXAMPLE III
As shown in fig. 1, 2, and 4, the blower structure 200 according to the present embodiment includes a housing 102, and the housing 102 is capable of rotating. A communication chamber 104 is provided in the housing 102, and a plurality of openings 108 are provided in a side wall of the housing 102. A plurality of noise reducing structures 106 within the housing 102 are connected at one end to the communication cavity 104 and at the other end to the opening 108, wherein each noise reducing structure 106 includes a plurality of tortuous channels. A plurality of blades 202 are disposed on an outer wall of the housing 102, and when the housing 102 drives the blades 202 to rotate, the fan structure 200 generates wind. In this process, the rotation of the blade 202 inevitably generates noise. Because the blades 202 are disposed on the housing 102, noise generated by the rotation of the blades 202 may enter the plurality of openings 108 in the sidewall of the housing 102 and be transmitted into the housing 102. The noise reduction structure 106 is disposed in the housing 102, and noise transmitted into the noise reduction structure 106 enters the plurality of bent channels in the noise reduction structure 106. Because one end of each noise reduction structure 106 is connected through the communication cavity 104, noise can propagate along different bending channels and interact in the propagation process, and finally the noise reduction effect is achieved.
Further, the noise reduction structure 106 may be formed by partitioning the internal cavity of the housing 102, which may simplify the noise reduction structure 106.
The noise reduction structures 106 are not communicated with each other except through the communication cavity 104, so that noise reduction can be realized independently. The communication chamber 104 is a cavity within the housing 102, and it will be appreciated that the communication chamber 104 is generally centrally located within the housing 102 to facilitate communication with the respective noise reduction structure 106. By arranging the communication cavity 104 in the shell 102, the mutual cooperation between the noise reduction can be realized, and the noise reduction can be realized together.
Generally, the housing 102 may be a cylindrical, circular, conical, etc. structure with the noise reducing structures 106 evenly distributed along the axial direction, and the openings 108 on the housing 102 may introduce the peripheral airflow portion into the noise reducing structures 106 to reduce the noise thereof when the housing 102 rotates along the axial direction. The structure can greatly improve the mute performance of the equipment which generates noise due to the rotation of the equipment and drives the air flow, and improve the use experience of users.
Further, the noise reduction structure 106 includes a plurality of baffles 110, and the plurality of baffles 110 form a tortuous path therebetween within which sound may travel. In the process that the noise is propagated in the bent channel, the noise can also interact in the bent channel, and finally the noise is reduced or eliminated.
Further, baffle 110 includes a side plate 112 and a rib plate 114. The side plate 112 is connected to a side wall of the housing 102, and the other end extends toward the communication chamber 104. It will be appreciated that the edge panels 112 serve both to form the walls of the noise reduction structure 106 and to separate adjacent noise reduction structures 106.
One end of the rib plate 114 is connected to the side plate 112, and the extending direction of the rib plate 114 is not parallel to the extending direction of the side plate 112, so that a certain angle can be formed between the rib plate 114 and the side plate 112, and finally, the plurality of baffles 110 jointly form an internal passage of the noise reduction structure 106 capable of changing the gas flow direction.
It should be noted here that the rib plates 114 inside the same noise reduction structure 106 and the adjacent rib plates 114 are respectively connected to different side plates 112, so that noise can be transmitted in a zigzag manner in the noise reduction structure 106, so as to increase the distance of the noise transmitted in the noise reduction structure 106, thereby increasing the noise reduction effect.
Example four
As shown in fig. 1, 2, and 4, the blower structure 200 according to the present embodiment includes a housing 102, and the housing 102 is capable of rotating. A communication chamber 104 is provided in the housing 102, and a plurality of openings 108 are provided in a side wall of the housing 102. A plurality of noise reducing structures 106 within the housing 102 are connected at one end to the communication cavity 104 and at the other end to the opening 108, wherein each noise reducing structure 106 includes a plurality of tortuous channels. A plurality of blades 202 are disposed on an outer wall of the housing 102, and when the housing 102 drives the blades 202 to rotate, the fan structure 200 generates wind. In this process, the rotation of the blade 202 inevitably generates noise. Because the blades 202 are disposed on the housing 102, noise generated by the rotation of the blades 202 may enter the plurality of openings 108 in the sidewall of the housing 102 and be transmitted into the housing 102. A noise reduction structure 106 is disposed in the housing 102, and noise transmitted into the noise reduction structure 106 enters the plurality of bending channels in the noise reduction structure 106. Because one end of each noise reduction structure 106 is connected through the communication cavity 104, noise can propagate along different bending channels and interact in the propagation process, and finally the noise reduction effect is achieved.
Further, the noise reduction structure 106 may be formed by partitioning the internal cavity of the housing 102, which may simplify the noise reduction structure 106.
The noise reduction structures 106 are not communicated with each other except through the communication cavity 104, so that noise reduction can be realized independently. The communication chamber 104 is a cavity within the housing 102, and it will be appreciated that the communication chamber 104 is generally centrally located within the housing 102 to facilitate communication with the respective noise reduction structure 106. By arranging the communication cavity 104 in the shell 102, the mutual cooperation between the noise reduction can be realized, and the noise reduction can be realized together.
Generally, the housing 102 may be a cylindrical, circular, conical, etc. structure with the noise reducing structures 106 evenly distributed along the axial direction, and the openings 108 on the housing 102 may introduce the peripheral airflow portion into the noise reducing structures 106 to reduce the noise thereof when the housing 102 rotates along the axial direction. The structure can greatly improve the mute performance of the equipment which generates noise due to the rotation of the equipment and drives the air flow, and improve the use experience of users.
Further, the noise reduction structure 106 includes a plurality of baffles 110, and a tortuous path is formed between the plurality of baffles 110, and sound may propagate within the tortuous path. In the process that the noise is propagated in the bent channel, the noise can also interact in the bent channel, and finally the noise is reduced or eliminated.
Further, baffle 110 includes a side plate 112 and a rib plate 114. The side plate 112 is connected to a side wall of the housing 102, and the other end extends toward the communication chamber 104. It will be appreciated that the edge panels 112 serve both to form the walls of the noise reduction structure 106 and to separate adjacent noise reduction structures 106.
One end of the rib plate 114 is connected to the side plate 112, and the extending direction of the rib plate 114 is not parallel to the extending direction of the side plate 112, so that a certain angle can be formed between the rib plate 114 and the side plate 112, and finally, the plurality of baffles 110 jointly form an internal passage of the noise reduction structure 106 capable of changing the gas flow direction.
It should be noted here that the rib plates 114 inside the same noise reduction structure 106 and the adjacent rib plates 114 are respectively connected to different side plates 112, so that noise can be transmitted in a zigzag manner in the noise reduction structure 106, so as to increase the distance of the noise transmitted in the noise reduction structure 106, thereby increasing the noise reduction effect.
Further, an outer wall plate 116 is connected at one end to the outer end of the side plate 112 and extends in the circumferential direction of the housing 102 to form the opening 108 with the other side plate 112. A plurality of exterior wall panels 116 collectively comprise the side walls of the housing 102. Compared with the method of specially punching the side wall to form the opening 108, the opening 108 formed in this way has a simpler structure, and the edge plate 112 at one end of the opening 108 is more beneficial to the air intake of the noise reduction structure 106.
One end of the inner wall plate 118 is connected to the inner end of the side plate 112 and extends along the circumferential direction of the housing 102, the inner wall plates 118 surround to form a communication cavity 104, and a through hole 120 which can be communicated to the communication cavity 104 is formed between the other end of the inner wall plate 118 and the other side plate 112. It will be appreciated that the inner wall plate 118 is the wall of the noise reducing structure 106 closest to the center of the housing 102, and that gas may enter the communication chamber 104 through the through hole 120 between the inner wall plate 118 and the other side plate 112 to provide communication between the noise reducing structures 106.
Further, as shown in fig. 1, the distance d between the opening 108 formed between the outer wall plate 116 and the other side plate 112 is less than 10mm, so that the gas can effectively enter the noise reduction structure 106, and additional noise can not be generated by turbulence formed at the opening 108 due to the too wide opening 108. The gas flowing through the side wall can be effectively gathered from the opening 108 into the noise reduction structure 106, and noise reduction is realized.
In addition, it is ensured that the width of the opening 108 is not too wide, and the circumferential width of the noise reduction structure 106 can be kept in a certain proportion relative to the opening 108, so as to ensure that the noise reduction structure 106 can effectively reduce noise of the airflow entering the opening 108.
EXAMPLE five
As shown in fig. 1, 2, and 4, the blower structure 200 according to the present embodiment includes a housing 102, and the housing 102 is capable of rotating. A communication chamber 104 is provided in the housing 102, and a plurality of openings 108 are provided in a side wall of the housing 102. A plurality of noise reducing structures 106 within the housing 102 are connected at one end to the communication cavity 104 and at the other end to the opening 108, wherein each noise reducing structure 106 includes a plurality of tortuous channels. A plurality of blades 202 are disposed on an outer wall of the housing 102, and when the housing 102 drives the blades 202 to rotate, the fan structure 200 generates wind. In this process, the rotation of the blade 202 inevitably generates noise. Because the blades 202 are disposed on the housing 102, noise generated by the rotation of the blades 202 may enter the plurality of openings 108 in the sidewall of the housing 102 and be transmitted into the housing 102. A noise reduction structure 106 is disposed in the housing 102, and noise transmitted into the noise reduction structure 106 enters the plurality of bending channels in the noise reduction structure 106. Because one end of each noise reduction structure 106 is connected through the communication cavity 104, noise can propagate along different bending channels and interact in the propagation process, and finally the noise reduction effect is achieved.
Further, the noise reduction structure 106 may be formed by partitioning the internal cavity of the housing 102, which may simplify the noise reduction structure 106.
The noise reduction structures 106 are not communicated with each other except through the communication cavity 104, so that noise reduction can be realized independently. The communication chamber 104 is a cavity within the housing 102, and it will be appreciated that the communication chamber 104 is generally centrally located within the housing 102 to facilitate communication with the respective noise reduction structure 106. By arranging the communicating cavity 104 in the shell 102, the mutual cooperation between the noise reduction can be realized, and the noise reduction can be realized together.
Generally, the housing 102 may be a cylindrical, circular, conical, etc. structure with the noise reducing structures 106 evenly distributed along the axial direction, and the openings 108 on the housing 102 may introduce the peripheral airflow portion into the noise reducing structures 106 to reduce the noise thereof when the housing 102 rotates along the axial direction. The structure can greatly improve the mute performance of the equipment which generates noise due to the rotation of the equipment and drives the air flow, and improve the use experience of users.
Further, the noise reduction structure 106 includes a plurality of baffles 110, and the plurality of baffles 110 form a tortuous path therebetween within which sound may travel. In the process that the noise is propagated in the bent channel, the noise can also interact in the bent channel, and finally the noise is reduced or eliminated.
Further, baffle 110 includes a side plate 112 and a rib plate 114. The side plate 112 is connected to a side wall of the housing 102, and the other end extends toward the communication chamber 104. It will be appreciated that the edge panels 112 serve both to form the walls of the noise reduction structure 106 and to separate adjacent noise reduction structures 106.
One end of the rib plate 114 is connected to the side plate 112, and the extending direction of the rib plate 114 is not parallel to the extending direction of the side plate 112, so that a certain angle can be formed between the rib plate 114 and the side plate 112, and finally, the plurality of baffles 110 jointly form an internal passage of the noise reduction structure 106 capable of changing the gas flow direction.
It should be noted here that the rib plates 114 inside the same noise reduction structure 106 and the adjacent rib plates 114 are respectively connected to different side plates 112, so that noise can be transmitted in a zigzag manner in the noise reduction structure 106, so as to increase the distance of the noise transmitted in the noise reduction structure 106, thereby increasing the noise reduction effect.
Further, an outer wall plate 116 is connected at one end to the outer end of the side plate 112 and extends in the circumferential direction of the housing 102 to form the opening 108 with the other side plate 112. A plurality of exterior wall panels 116 collectively comprise the side walls of the housing 102. Compared with the method of specially punching the side wall to form the opening 108, the opening 108 formed in this way has a simpler structure, and the edge plate 112 at one end of the opening 108 is more beneficial to the air intake of the noise reduction structure 106.
One end of the inner wall plate 118 is connected to the inner end of the side plate 112 and extends along the circumferential direction of the housing 102, the inner wall plates 118 surround to form a communication cavity 104, and a through hole 120 which can be communicated to the communication cavity 104 is formed between the other end of the inner wall plate 118 and the other side plate 112. It will be appreciated that the inner wall plate 118 is the wall of the noise reducing structure 106 closest to the center of the housing 102, and that gas may enter the communication chamber 104 through the through hole 120 between the inner wall plate 118 and the other side plate 112 to provide communication between the noise reducing structures 106.
Further, as shown in fig. 3, the housing 102 has a certain thickness in its axial direction, and the extending direction of the opening 108, i.e., the direction with respect to the thickness of the housing 102, is not parallel to the axial direction of the housing 102. It will be appreciated that as the housing 102 is rotated in an axial direction, the airflow may more readily enter the noise reduction structure 106 from the opening 108.
Further, when the noise reduction structure 106 is used for reducing noise of fan blades of a fan or the like, in addition to forming an air flow in the circumferential direction of the casing 102, the casing 102 may also have an air flow in the axial direction. The opening 108 may extend in a direction that is not parallel to the axial direction of the housing 102, which may allow noise to more fully enter the opening 108.
EXAMPLE six
As shown in fig. 1, 2, and 4, the blower structure 200 according to the present embodiment includes a housing 102, and the housing 102 is capable of rotating. A communication chamber 104 is provided in the housing 102, and a plurality of openings 108 are provided in a side wall of the housing 102. A plurality of noise reducing structures 106 within the housing 102 are connected at one end to the communication cavity 104 and at the other end to the opening 108, wherein each noise reducing structure 106 includes a plurality of tortuous channels. A plurality of blades 202 are disposed on an outer wall of the housing 102, and when the housing 102 drives the blades 202 to rotate, the fan structure 200 generates wind. In this process, the rotation of the blade 202 inevitably generates noise. Because the blades 202 are disposed on the housing 102, noise generated by the rotation of the blades 202 may enter the plurality of openings 108 in the sidewall of the housing 102 and be transmitted into the housing 102. A noise reduction structure 106 is disposed in the housing 102, and noise transmitted into the noise reduction structure 106 enters the plurality of bending channels in the noise reduction structure 106. Because one end of each noise reduction structure 106 is connected through the communication cavity 104, noise can propagate along different bending channels and interact in the propagation process, and finally the noise reduction effect is achieved.
Further, the noise reduction structure 106 may be formed by partitioning the internal cavity of the housing 102, which may simplify the noise reduction structure 106.
The noise reduction structures 106 are not communicated with each other except through the communication cavity 104, so that noise reduction can be realized independently. The communication chamber 104 is a cavity within the housing 102, and it will be appreciated that the communication chamber 104 is generally centrally located within the housing 102 to facilitate communication with the respective noise reduction structure 106. By arranging the communication cavity 104 in the shell 102, the mutual cooperation between the noise reduction can be realized, and the noise reduction can be realized together.
Generally, the housing 102 may be a cylindrical, circular, conical, etc. symmetric structure, and the noise reducing structures 106 may be uniformly distributed along the axial direction, and when the housing 102 rotates along the axial direction, the openings 108 on the housing 102 may introduce the peripheral airflow portion into the noise reducing structures 106 to reduce the noise thereof. The structure can greatly improve the mute performance of the equipment which generates noise due to the rotation and the driving of the airflow, and improve the use experience of users.
Further, the noise reduction structure 106 includes a plurality of baffles 110, and a tortuous path is formed between the plurality of baffles 110, and sound may propagate within the tortuous path. In the process that the noise is propagated in the bent channel, the noise can also interact in the bent channel, and finally the noise is reduced or eliminated.
Further, baffle 110 includes a side plate 112 and a rib plate 114. The side plate 112 is connected to a side wall of the housing 102, and the other end extends toward the communication chamber 104. It will be appreciated that the edge panels 112 serve both to form the walls of the noise reduction structure 106 and to separate adjacent noise reduction structures 106.
One end of the rib plate 114 is connected to the side plate 112, and the extending direction of the rib plate 114 is not parallel to the extending direction of the side plate 112, so that a certain angle can be formed between the rib plate 114 and the side plate 112, and finally, the plurality of baffles 110 jointly form an internal passage of the noise reduction structure 106 capable of changing the gas flow direction.
It should be noted here that the rib plates 114 inside the same noise reduction structure 106 and the adjacent rib plates 114 are respectively connected to different side plates 112, so that noise can be transmitted in a zigzag manner in the noise reduction structure 106, so as to increase the distance of the noise transmitted in the noise reduction structure 106, thereby increasing the noise reduction effect.
Further, an end of the outer wall plate 116 is connected to an outer end of the side plate 112 and extends along a circumferential direction of the housing 102 to form the opening 108 with the other side plate 112. A plurality of exterior wall panels 116 collectively comprise the side walls of the housing 102. Compared with the method of specially punching the side wall to form the opening 108, the opening 108 formed in this way has a simpler structure, and the edge plate 112 at one end of the opening 108 is more beneficial to the air intake of the noise reduction structure 106.
One end of the inner wall plate 118 is connected to the inner end of the side plate 112 and extends along the circumferential direction of the housing 102, the inner wall plates 118 surround to form a communication cavity 104, and a through hole 120 which can be communicated to the communication cavity 104 is formed between the other end of the inner wall plate 118 and the other side plate 112. It is understood that the inner wall plate 118 is the wall plate of the noise reduction structure 106 closest to the center of the housing 102, and the gas can enter the communication cavity 104 through the through hole 120 between the inner wall plate 118 and the other side plate 112, so as to realize the communication between the noise reduction structures 106.
Further, as shown in fig. 3, the housing 102 has a certain thickness in its axial direction, and the extending direction of the opening 108, i.e., the direction with respect to the thickness of the housing 102, is not parallel to the axial direction of the housing 102. It will be appreciated that as the housing 102 is rotated in an axial direction, the airflow may more readily enter the noise reduction structure 106 from the opening 108.
Further, when the noise reduction structure 106 is used for reducing noise of fan blades of a fan or the like, in addition to forming an air flow in the circumferential direction of the casing 102, the casing 102 may also have an air flow in the axial direction. The opening 108 may extend in a direction that is not parallel to the axial direction of the housing 102, which may allow noise to enter the opening 108 more fully.
Further, the noise reduction structures 106 are uniformly arranged along the circumferential direction of the casing 102, so that noise can be effectively reduced at different positions of the casing 102 in the circumferential direction.
In addition, the noise reduction structures 106 are uniformly distributed, so that the internal structure of the shell 102 is more uniform, the circumferential weight distribution of the shell is more balanced, and the shell is more stable in rotation.
Further, a sound absorbing member 122, such as sound absorbing cotton, may be disposed within the housing 102. The sound absorbing member 122 is provided on the baffle 110. It is apparent that after entering the noise reduction structure 106 from the opening 108, the airflow passes through the baffle 110 and is deflected by the baffle 110 a plurality of times to eliminate noise during the deflection of the airflow. The sound absorbing member 122 is provided on the baffle 110, and can also provide an effect of eliminating noise.
Further, a helmholtz resonator may be disposed in the housing 102, which may have a certain effect on single frequency noise.
EXAMPLE seven
In addition to the sixth embodiment, as shown in fig. 4, a plurality of blades 202 are provided in the circumferential direction of the casing 102. As the fan structure 200 rotates, the blades 202 generate wind and also generate noise. It will be appreciated that turbulence and thus noise is more likely to form at the junction of the blade 202 and the housing 102. By providing the noise reduction structure 106 inside the housing 102, the noise of the fan structure 200 may be reduced.
Further, the number of the housings 102 is two, and they are coaxially arranged. The blades 202 on the two shells 102 have opposite rotation directions, so that a counter-rotating axial flow fan is formed. This fan structure 200 can achieve a small volume of air with a large volume of air, but its noise is generally high. The noise reduction structure 106 in the housing 102 can reduce the noise of the fan structure 200 and improve the silencing effect. Particularly, under the action of the noise reduction structure 106, the noise reduction structure has a more obvious noise reduction effect on the noise with the medium and low frequency below 5000 Hz.
Further, the number of the noise reduction structures 106 is greater than or equal to 4, so that the noise reduction structures 106 can be distributed more uniformly, and the phenomenon that a certain noise reduction structure 106 cannot function under a special condition to cause overall abnormal operation is avoided. Generally, for the fan structure 200, the number of noise reduction structures 106 may be matched to the number of blades 202 of the fan structure 200, so as to achieve the best noise reduction effect for the fan structure 200.
Further, the opening 108 may be a rectangular opening, which may allow wind to be guided from the structure of the opening 108 into the noise reduction structure 106, thereby reducing noise.
In addition, as shown in fig. 4, the opening 108 may also be formed by a plurality of circular holes, and the air enters the noise reduction structure 106 from the plurality of circular holes, so that noise reduction can also be achieved. Relatively speaking, the rectangular opening is simpler in structure and better in air inlet effect.
Further, a sound absorbing member 122, such as sound absorbing cotton, may be disposed within the housing 102. The sound absorbing member 122 is provided on the baffle 110. It is apparent that after entering the noise reduction structure 106 from the opening 108, the airflow passes through the baffle 110 and is deflected by the baffle 110 a plurality of times to eliminate noise during the deflection of the airflow. The sound absorbing member 122 is provided on the baffle 110, and can also provide an effect of eliminating noise.
Further, a helmholtz resonator may be disposed in the housing 102, which may have a certain effect on single frequency noise.
Example eight
As shown in fig. 5, the present embodiment provides an air conditioner 400, which includes an apparatus body 404, and any of the fan structures 200 in any of the above embodiments is disposed in the apparatus body 404. The main body 404 further includes an indoor unit 402 and an outdoor unit 300 connected by a pipe, and the fan structure 200 is disposed in the outdoor unit 300.
The indoor unit 402 is provided with any of the fan structures 200 in any of the above embodiments, so that any of the beneficial effects of the first embodiment described above are achieved, and details are not repeated here.
According to the fan structure and the air conditioner, the noise can be effectively reduced, the mute performance of equipment can be improved, and the user experience can be improved. The broadband noise of the fan structure can be eliminated, and the noise reduction device has a more obvious noise reduction effect on medium and low frequency noise, particularly noise below 5000Hz of the medium and low frequency.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A fan structure, comprising:
the shell is internally provided with a communicating cavity, the side wall of the shell is provided with a plurality of openings, and the shell can rotate;
the noise reduction structures are arranged in the shell, one end of each noise reduction structure is communicated to the communicating cavity, the other end of each noise reduction structure is communicated with the opening, and each noise reduction structure comprises a plurality of bent channels;
and the blades are arranged on the outer wall of the shell.
2. The fan structure of claim 1, comprising:
the noise reduction structure comprises a plurality of baffles, and the bent channels are formed among the baffles.
3. The fan structure according to claim 2, wherein the plurality of baffles specifically include:
one end of the side plate is connected with the side wall of the shell, and the other end of the side plate extends towards the communication cavity;
one end of the rib plate is connected with the side plate, and the extending direction of the rib plate is not parallel to the extending direction of the side plate.
4. The fan structure of claim 3, wherein the edge plate extends in a radial direction of the housing, the housing comprising:
one end of the outer wall plate is connected with the outer end of the side plate, the outer wall plate extends along the circumferential direction of the shell, and the opening is formed between the other end of the outer wall plate and the other side plate;
an inner wall plate, one end of the inner wall plate is connected with the inner end of the side plate, and the inner wall plate extends along the circumferential direction of the shell,
the inner wall plates surround to form the communication cavity, and a via hole communicated with the communication cavity is formed between the other end of each inner wall plate and the other side plate.
5. The fan structure according to claim 1, wherein an extending direction of the opening is not parallel to an axial direction of the housing.
6. The fan structure according to claim 1, wherein the plurality of noise reducing structures are arranged uniformly in a circumferential direction of the casing.
7. The fan structure of claim 2, further comprising:
inhale the sound piece, locate in the casing, just inhale the sound piece and locate on the baffle of structure of making an uproar falls.
8. The fan structure according to claim 1, wherein the number of the casings is two, the two casings are coaxially disposed,
wherein the rotation directions of the blades on the two shells are opposite.
9. An air conditioner, comprising:
an apparatus body;
at least one fan structure according to any of claims 1 to 8, provided within the device body.
10. The air conditioner according to claim 9, wherein the device body comprises: the indoor unit and the outdoor unit are connected through pipelines;
the fan structure is arranged in the outdoor unit.
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| CN202011561680.6A CN114688638B (en) | 2020-12-25 | 2020-12-25 | Fan structure and air conditioner |
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| CN202011561680.6A CN114688638B (en) | 2020-12-25 | 2020-12-25 | Fan structure and air conditioner |
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| CN114688638B (en) | 2023-09-01 |
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