CN114688638B - Fan structure and air conditioner - Google Patents
Fan structure and air conditioner Download PDFInfo
- Publication number
- CN114688638B CN114688638B CN202011561680.6A CN202011561680A CN114688638B CN 114688638 B CN114688638 B CN 114688638B CN 202011561680 A CN202011561680 A CN 202011561680A CN 114688638 B CN114688638 B CN 114688638B
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- Prior art keywords
- noise reduction
- housing
- noise
- shell
- side plate
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Classifications
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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 application provides a fan structure and an air conditioner, wherein the fan structure comprises a shell, a communication 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 plurality of noise reduction structures are arranged in the shell, one end of each noise reduction structure is communicated with the communication cavity, the other end of each noise reduction structure is communicated with the opening, and each noise reduction structure comprises a plurality of bending channels; 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 application 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, the cooling capacity of a large box body is expected to be realized by using a smaller box body, and the disrotatory air conditioner external unit, namely an axial flow fan for the air conditioner external unit, is started to be adopted at present so as to overcome the resistance rise caused by the large air quantity of a small box body. However, the counter-rotating axial flow external machine is generally applied to the premise of small box body high wind pressure and large wind quantity, and the noise is generally higher.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art or related art.
In view of this, a first aspect of the embodiments of the present application provides a fan structure.
A second aspect of an embodiment of the present application provides an air conditioner.
In order to achieve the above object, an embodiment of a first aspect of the present application provides a fan structure, including a housing, a communication cavity is provided in the housing, a plurality of openings are provided on a side wall of the housing, and the housing can rotate; the plurality of noise reduction structures are arranged in the shell, one end of each noise reduction structure is communicated with the communication cavity, the other end of each noise reduction structure is communicated with the opening, and each noise reduction structure comprises a plurality of bending channels; the blades are arranged on the outer wall of the shell.
An embodiment according to a first aspect of the present application provides a fan structure, including a housing, the housing being rotatable. A communication 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 with the communication cavity, and the other end of the noise reduction structure is communicated with the opening, wherein each noise reduction structure comprises a plurality of bending channels. A plurality of blades are arranged on the outer wall of the shell, and when the shell drives the blades to rotate, wind can be generated by the fan structure. In this process, the rotation of the blade inevitably generates noise. Since the blades are provided on the housing, noise generated by rotation of the blades may enter the plurality of openings of the side wall of the housing and be transmitted into the housing. A noise reduction structure is arranged in the shell, and after noise is transmitted into the noise reduction structure, the noise can enter a plurality of bending channels in the noise reduction structure. Because all the one ends of structure of making an uproar falls all are connected through the intercommunication chamber, consequently the noise can propagate along different bending channels to at the in-process interact of propagating simultaneously, finally realize the effect of making an uproar falls.
Further, the noise reduction structure can be formed by partitioning the inner cavity of the housing, and such a structure can simplify the noise reduction structure.
The noise reduction structures are connected through the communication cavity, and other positions are not communicated with each other, so that noise reduction can be realized independently. The communication cavity is a cavity inside the housing, and it is understood that the communication cavity is generally disposed at a central position of the housing so as to communicate with each noise reduction structure. Through set up the intercommunication chamber in the casing inside, can realize each and make an uproar between each making an uproar that falls in coordination, realize making an uproar jointly.
Generally, the housing may have a cylindrical, annular, conical, or equiaxed symmetrical structure, and the noise reducing structures are uniformly distributed along the axial direction, and when the housing rotates along the axial direction, the openings of the housing may guide the peripheral airflow portion into the noise reducing structures, so as to reduce noise. With the structure, the silencing performance of the equipment generating noise due to the rotation driving air flow can be greatly improved, and the use experience of users is improved.
In addition, the fan structure in the scheme provided by the application can also have the following additional technical characteristics:
in the above technical scheme, the noise reduction structure of the fan structure comprises a plurality of baffles, and bending channels are formed among the baffles.
In this technical scheme, fall the structure of making an uproar and include a plurality of baffles, form the passageway of buckling between a plurality of baffles, the sound can propagate in the passageway of buckling. Noise propagates in the tortuous path while also interacting within the tortuous path, and eventually noise is reduced or eliminated.
In the above technical scheme, 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 extends to 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 this technical scheme, the baffle includes sideboard and gusset. Wherein, the sideboard links to each other with the lateral wall of casing, and the other end extends to the intercommunication chamber. It will be appreciated that the side panels serve to both 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, and 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 inside gusset of same structure of making an uproar falls, adjacent gusset links to each other with different sideboards respectively, like this, can noise realize Z style of calligraphy transmission in the structure of making an uproar falls to increase the distance that noise propagated in the structure of making an uproar falls, and then increase the noise reduction effect.
In the above technical scheme, the sideboard extends along the radial direction of casing, and the casing includes: an outer wall plate, one end of which is connected with the outer end of the side plate, and 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 plurality of inner wall plates surround to form a communication cavity, and a through hole for communicating the communication cavity is formed between the other end of the inner wall plate and the other side plate.
In this embodiment, one end of the outer wall plate is connected to the outer end of the side plate, extends in the circumferential direction of the housing, and forms an opening with the other side plate. The plurality of outer wall panels together form a side wall of the housing. Compared with the opening formed by punching the side wall specially, the opening formed by the mode is simpler in structure, one end of the opening is a side plate, and air inlet of the noise reduction structure is facilitated.
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, a plurality of inner wall plates surround to form a communication cavity, and a through hole which can be communicated to the communication cavity is formed between the other end of the inner wall plate and the other side plate. It is understood that the inner wall plate is the wall plate closest to the center of the shell of the noise reduction structure, and gas can enter the communication cavity from the through hole between the inner wall plate and the other side plate, so that communication among the noise reduction structures is realized.
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 thickness in its axial direction, the direction of extension of the opening, i.e. the direction relative to the thickness of the housing, being non-parallel to the axial direction of the housing. It will be appreciated that when the housing is rotated in an axial direction, the airflow may more easily enter the noise reducing structure from the opening.
Further, when the noise reduction structure is used for reducing noise of blades of a fan and the like, airflow is formed in the circumferential direction of the housing, and the axial direction of the housing also has airflow. 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.
In the above technical scheme, a plurality of noise reduction structures are evenly arranged along the circumference of the shell.
In this technical scheme, evenly set up the structure of making an uproar falls along the circumference of casing for from the different positions on the casing circumference all can be by effectual making an uproar that falls.
In addition, the noise reduction structure is evenly distributed, so that the internal structure of the shell is more even, the circumferential weight distribution of the shell is more balanced, and the shell is more stable in rotation.
In the above technical scheme, the fan structure further includes: the sound absorbing piece is arranged in the shell and arranged on the baffle plate of the noise reduction structure.
In the technical scheme, a sound absorbing member is arranged in the shell and is arranged on the baffle. Obviously, after the air flow enters the noise reduction structure from the opening, the air flow can pass through the baffle, and the air flow is turned for multiple times under the action of the baffle, so that the noise is eliminated in the turning process of the air flow. The baffle is provided with the sound absorbing piece, so that noise can be effectively eliminated. In addition, since the sound absorbing member has a function of eliminating noise, a smaller number of baffles can be used to achieve the same noise reduction function, thereby simplifying the internal structure of the housing.
In the technical scheme, the number of the shells is two, and the two shells are coaxially arranged, wherein the rotation directions of blades on the two shells are opposite.
In this technical solution, the number of shells is two and is coaxially arranged. The shell is provided with a plurality of blades, and the rotation directions of the blades on the two shells are opposite to form a disrotatory axial flow fan. The fan structure can realize large air quantity of the small body machine, but the noise is usually higher. Noise reduction structure in the casing can reduce fan structure's noise, improves its silence effect.
According to a second aspect of the present application, there is provided an air conditioner comprising: an equipment body; a fan structure as in any of the embodiments of the first aspect is disposed within the device body.
According to a second aspect of the present application, an air conditioner includes an apparatus body and a fan structure, where the fan structure is disposed on the apparatus body.
In addition, the air conditioner includes any fan structure of the first aspect, so any of the beneficial effects of the embodiments of the first aspect are not described herein.
In the above 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 this technical scheme, the equipment body includes off-premises station and the indoor set through the pipeline connection, and the fan structure is located outside the off-premises station, can fall the noise to the off-premises station when the off-premises station produces wind.
Drawings
FIG. 1 illustrates a structural schematic of a blower configuration according to one embodiment of the application;
FIG. 2 illustrates a schematic cross-sectional view of a blower configuration according to an embodiment of the application;
FIG. 3 illustrates a schematic top view of a blower configuration according to an embodiment of the application;
FIG. 4 illustrates a schematic cross-sectional view of a blower configuration according to an embodiment of the application;
fig. 5 illustrates a schematic structure of an air conditioner according to an embodiment of the present application.
The correspondence between the reference numerals and the component names in fig. 1 to 5 is:
102: a housing; 104: a communication chamber; 106: a noise reduction structure; 108: an opening; 110: a baffle; 112: a side plate; 114: rib plates; 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: an apparatus body.
Detailed Description
In order that the above-recited objects, features and advantages of embodiments of the present application can be more clearly understood, a further detailed description of embodiments of the present application will be rendered by reference to the appended drawings and detailed description thereof. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
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 application may be practiced otherwise than as described herein, and therefore the scope of the application is not limited to the specific embodiments disclosed below.
Some embodiments according to the present application are described below with reference to fig. 1 to 5.
Example 1
As shown in fig. 1, 2 and 4, a fan structure 200 according to this embodiment includes a housing 102, where the housing 102 can rotate. 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 reduction 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 reduction structure 106 comprises a plurality of tortuous passages. A plurality of blades 202 are disposed on the outer wall of the housing 102, and when the housing 102 rotates the blades 202, 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 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 after noise is transmitted into the noise reduction structure 106, the noise enters a plurality of bending channels in the noise reduction structure 106. Because one end of all the noise reduction structures 106 is connected through the communication cavity 104, noise can propagate along different bending channels and interact in the propagation process at the same time, and finally, the noise reduction effect is realized.
Further, the noise reduction structure 106 may be formed by partitioning the internal cavity of the housing 102, and such a structure may simplify the noise reduction structure 106.
The noise reduction structures 106 are not communicated with each other except for being connected through the communication cavity 104, so that noise reduction can be realized independently. The communication cavity 104 is a cavity within the housing 102, it being understood that the communication cavity 104 is generally centrally located within the housing 102 to facilitate communication with each of the noise reduction structures 106. By providing the communication cavity 104 inside the housing 102, mutual cooperation between noise reduction can be achieved, and noise reduction is achieved together.
Generally, the housing 102 may have a cylindrical, circular, conical, or other symmetrical structure, and the noise reducing structures 106 are uniformly distributed along the axial direction, and when the housing 102 rotates along the axial direction, the openings 108 on the housing 102 may guide the peripheral airflow into the noise reducing structures 106, so as to reduce the noise. With the structure, the silencing performance of the equipment generating noise due to the rotation driving air flow can be greatly improved, and the use experience of users is improved.
Example two
As shown in fig. 1, 2 and 4, a fan structure 200 according to this embodiment includes a housing 102, where the housing 102 can rotate. 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 reduction 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 reduction structure 106 comprises a plurality of tortuous passages. A plurality of blades 202 are disposed on the outer wall of the housing 102, and when the housing 102 rotates the blades 202, 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 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 after noise is transmitted into the noise reduction structure 106, the noise enters a plurality of bending channels in the noise reduction structure 106. Because one end of all the noise reduction structures 106 is connected through the communication cavity 104, noise can propagate along different bending channels and interact in the propagation process at the same time, and finally, the noise reduction effect is realized.
Further, the noise reduction structure 106 may be formed by partitioning the internal cavity of the housing 102, and such a structure may simplify the noise reduction structure 106.
The noise reduction structures 106 are not communicated with each other except for being connected through the communication cavity 104, so that noise reduction can be realized independently. The communication cavity 104 is a cavity within the housing 102, it being understood that the communication cavity 104 is generally centrally located within the housing 102 to facilitate communication with each of the noise reduction structures 106. By providing the communication cavity 104 inside the housing 102, mutual cooperation between noise reduction can be achieved, and noise reduction is achieved together.
Generally, the housing 102 may have a cylindrical, circular, conical, or other symmetrical structure, and the noise reducing structures 106 are uniformly distributed along the axial direction, and when the housing 102 rotates along the axial direction, the openings 108 on the housing 102 may guide the peripheral airflow into the noise reducing structures 106, so as to reduce the noise. With the structure, the silencing performance of the equipment generating noise due to the rotation driving air flow can be greatly improved, and the use experience of users is improved.
Further, the noise reduction structure 106 includes a plurality of baffles 110, and a bending channel is formed between the baffles 110, and sound can propagate in the bending channel. Noise propagates in the tortuous path while also interacting within the tortuous path, and eventually noise is reduced or eliminated.
Example III
As shown in fig. 1, 2 and 4, a fan structure 200 according to this embodiment includes a housing 102, where the housing 102 can rotate. 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 reduction 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 reduction structure 106 comprises a plurality of tortuous passages. A plurality of blades 202 are disposed on the outer wall of the housing 102, and when the housing 102 rotates the blades 202, 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 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 after noise is transmitted into the noise reduction structure 106, the noise enters a plurality of bending channels in the noise reduction structure 106. Because one end of all the noise reduction structures 106 is connected through the communication cavity 104, noise can propagate along different bending channels and interact in the propagation process at the same time, and finally, the noise reduction effect is realized.
Further, the noise reduction structure 106 may be formed by partitioning the internal cavity of the housing 102, and such a structure may simplify the noise reduction structure 106.
The noise reduction structures 106 are not communicated with each other except for being connected through the communication cavity 104, so that noise reduction can be realized independently. The communication cavity 104 is a cavity within the housing 102, it being understood that the communication cavity 104 is generally centrally located within the housing 102 to facilitate communication with each of the noise reduction structures 106. By providing the communication cavity 104 inside the housing 102, mutual cooperation between noise reduction can be achieved, and noise reduction is achieved together.
Generally, the housing 102 may have a cylindrical, circular, conical, or other symmetrical structure, and the noise reducing structures 106 are uniformly distributed along the axial direction, and when the housing 102 rotates along the axial direction, the openings 108 on the housing 102 may guide the peripheral airflow into the noise reducing structures 106, so as to reduce the noise. With the structure, the silencing performance of the equipment generating noise due to the rotation driving air flow can be greatly improved, and the use experience of users is improved.
Further, the noise reduction structure 106 includes a plurality of baffles 110, and a bending channel is formed between the baffles 110, and sound can propagate in the bending channel. Noise propagates in the tortuous path while also interacting within the tortuous path, and eventually noise is reduced or eliminated.
Further, the baffle 110 includes a side plate 112 and a rib plate 114. Wherein 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 side panels 112 serve to both form walls of the noise reduction structure 106 and to separate adjacent noise reduction structures 106.
One end of the rib plate 114 is connected with 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 together form an internal passage of the noise reduction structure 106 capable of changing the gas flow direction.
It should be noted that, the rib plates 114 inside the same noise reduction structure 106 are connected to different side plates 112 respectively by adjacent rib plates 114, so that noise can be propagated in a zigzag manner in the noise reduction structure 106, so as to increase the distance of noise propagated in the noise reduction structure 106 and further increase the noise reduction effect.
Example IV
As shown in fig. 1, 2 and 4, a fan structure 200 according to this embodiment includes a housing 102, where the housing 102 can rotate. 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 reduction 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 reduction structure 106 comprises a plurality of tortuous passages. A plurality of blades 202 are disposed on the outer wall of the housing 102, and when the housing 102 rotates the blades 202, 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 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 after noise is transmitted into the noise reduction structure 106, the noise enters a plurality of bending channels in the noise reduction structure 106. Because one end of all the noise reduction structures 106 is connected through the communication cavity 104, noise can propagate along different bending channels and interact in the propagation process at the same time, and finally, the noise reduction effect is realized.
Further, the noise reduction structure 106 may be formed by partitioning the internal cavity of the housing 102, and such a structure may simplify the noise reduction structure 106.
The noise reduction structures 106 are not communicated with each other except for being connected through the communication cavity 104, so that noise reduction can be realized independently. The communication cavity 104 is a cavity within the housing 102, it being understood that the communication cavity 104 is generally centrally located within the housing 102 to facilitate communication with each of the noise reduction structures 106. By providing the communication cavity 104 inside the housing 102, mutual cooperation between noise reduction can be achieved, and noise reduction is achieved together.
Generally, the housing 102 may have a cylindrical, circular, conical, or other symmetrical structure, and the noise reducing structures 106 are uniformly distributed along the axial direction, and when the housing 102 rotates along the axial direction, the openings 108 on the housing 102 may guide the peripheral airflow into the noise reducing structures 106, so as to reduce the noise. With the structure, the silencing performance of the equipment generating noise due to the rotation driving air flow can be greatly improved, and the use experience of users is improved.
Further, the noise reduction structure 106 includes a plurality of baffles 110, and a bending channel is formed between the baffles 110, and sound can propagate in the bending channel. Noise propagates in the tortuous path while also interacting within the tortuous path, and eventually noise is reduced or eliminated.
Further, the baffle 110 includes a side plate 112 and a rib plate 114. Wherein 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 side panels 112 serve to both form walls of the noise reduction structure 106 and to separate adjacent noise reduction structures 106.
One end of the rib plate 114 is connected with 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 together form an internal passage of the noise reduction structure 106 capable of changing the gas flow direction.
It should be noted that, the rib plates 114 inside the same noise reduction structure 106 are connected to different side plates 112 respectively by adjacent rib plates 114, so that noise can be propagated in a zigzag manner in the noise reduction structure 106, so as to increase the distance of noise propagated in the noise reduction structure 106 and further increase 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 circumferentially of the housing 102 to form an opening 108 with the other side plate 112. The plurality of outer wall panels 116 collectively comprise the side walls of the housing 102. The opening 108 formed in this manner is simpler in construction than an opening 108 formed by exclusively punching a sidewall, and the side plate 112 is provided at one end of the opening 108 to facilitate air intake into 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 in the circumferential direction of the housing 102, a plurality of inner wall plates 118 surround to form the communication chamber 104, and a through hole 120 which can communicate to the communication chamber 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 plate of the noise reduction structure 106 closest to the center of the housing 102, and that gas may enter the communication chamber 104 from the through holes 120 between the inner wall plate 118 and the other side plate 112 to provide communication between the noise reduction structures 106.
Further, as shown in fig. 1, the distance d between the outer wall plate 116 and the other side plate 112 is smaller than 10mm, so that the gas can effectively enter the noise reduction structure 106, and turbulence is not generated at the opening 108 due to the too wide opening 108, so that additional noise is not generated. The gas flowing from the side wall can be effectively converged into the noise reduction structure 106 from the opening 108, so that noise reduction is realized.
In addition, 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 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, a fan structure 200 according to this embodiment includes a housing 102, where the housing 102 can rotate. 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 reduction 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 reduction structure 106 comprises a plurality of tortuous passages. A plurality of blades 202 are disposed on the outer wall of the housing 102, and when the housing 102 rotates the blades 202, 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 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 after noise is transmitted into the noise reduction structure 106, the noise enters a plurality of bending channels in the noise reduction structure 106. Because one end of all the noise reduction structures 106 is connected through the communication cavity 104, noise can propagate along different bending channels and interact in the propagation process at the same time, and finally, the noise reduction effect is realized.
Further, the noise reduction structure 106 may be formed by partitioning the internal cavity of the housing 102, and such a structure may simplify the noise reduction structure 106.
The noise reduction structures 106 are not communicated with each other except for being connected through the communication cavity 104, so that noise reduction can be realized independently. The communication cavity 104 is a cavity within the housing 102, it being understood that the communication cavity 104 is generally centrally located within the housing 102 to facilitate communication with each of the noise reduction structures 106. By providing the communication cavity 104 inside the housing 102, mutual cooperation between noise reduction can be achieved, and noise reduction is achieved together.
Generally, the housing 102 may have a cylindrical, circular, conical, or other symmetrical structure, and the noise reducing structures 106 are uniformly distributed along the axial direction, and when the housing 102 rotates along the axial direction, the openings 108 on the housing 102 may guide the peripheral airflow into the noise reducing structures 106, so as to reduce the noise. With the structure, the silencing performance of the equipment generating noise due to the rotation driving air flow can be greatly improved, and the use experience of users is improved.
Further, the noise reduction structure 106 includes a plurality of baffles 110, and a bending channel is formed between the baffles 110, and sound can propagate in the bending channel. Noise propagates in the tortuous path while also interacting within the tortuous path, and eventually noise is reduced or eliminated.
Further, the baffle 110 includes a side plate 112 and a rib plate 114. Wherein 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 side panels 112 serve to both form walls of the noise reduction structure 106 and to separate adjacent noise reduction structures 106.
One end of the rib plate 114 is connected with 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 together form an internal passage of the noise reduction structure 106 capable of changing the gas flow direction.
It should be noted that, the rib plates 114 inside the same noise reduction structure 106 are connected to different side plates 112 respectively by adjacent rib plates 114, so that noise can be propagated in a zigzag manner in the noise reduction structure 106, so as to increase the distance of noise propagated in the noise reduction structure 106 and further increase 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 circumferentially of the housing 102 to form an opening 108 with the other side plate 112. The plurality of outer wall panels 116 collectively comprise the side walls of the housing 102. The opening 108 formed in this manner is simpler in construction than an opening 108 formed by exclusively punching a sidewall, and the side plate 112 is provided at one end of the opening 108 to facilitate air intake into 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 in the circumferential direction of the housing 102, a plurality of inner wall plates 118 surround to form the communication chamber 104, and a through hole 120 which can communicate to the communication chamber 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 plate of the noise reduction structure 106 closest to the center of the housing 102, and that gas may enter the communication chamber 104 from the through holes 120 between the inner wall plate 118 and the other side plate 112 to provide communication between the noise reduction structures 106.
Further, as shown in fig. 3, the housing 102 has a certain thickness in the axial direction thereof, 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, airflow may more readily enter the noise reduction structure 106 from the opening 108.
Further, when the noise reduction structure 106 is used for noise reduction of blades of a fan or the like, airflow is formed in the circumferential direction of the housing 102, and airflow is also formed in the axial direction of the housing 102. The direction of extension of the opening 108 is not parallel to the axial direction of the housing 102, which may enable more adequate entry of noise into the opening 108.
Example six
As shown in fig. 1, 2 and 4, a fan structure 200 according to this embodiment includes a housing 102, where the housing 102 can rotate. 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 reduction 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 reduction structure 106 comprises a plurality of tortuous passages. A plurality of blades 202 are disposed on the outer wall of the housing 102, and when the housing 102 rotates the blades 202, 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 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 after noise is transmitted into the noise reduction structure 106, the noise enters a plurality of bending channels in the noise reduction structure 106. Because one end of all the noise reduction structures 106 is connected through the communication cavity 104, noise can propagate along different bending channels and interact in the propagation process at the same time, and finally, the noise reduction effect is realized.
Further, the noise reduction structure 106 may be formed by partitioning the internal cavity of the housing 102, and such a structure may simplify the noise reduction structure 106.
The noise reduction structures 106 are not communicated with each other except for being connected through the communication cavity 104, so that noise reduction can be realized independently. The communication cavity 104 is a cavity within the housing 102, it being understood that the communication cavity 104 is generally centrally located within the housing 102 to facilitate communication with each of the noise reduction structures 106. By providing the communication cavity 104 inside the housing 102, mutual cooperation between noise reduction can be achieved, and noise reduction is achieved together.
Generally, the housing 102 may have a cylindrical, circular, conical, or other symmetrical structure, and the noise reducing structures 106 are uniformly distributed along the axial direction, and when the housing 102 rotates along the axial direction, the openings 108 on the housing 102 may guide the peripheral airflow into the noise reducing structures 106, so as to reduce the noise. With the structure, the silencing performance of the equipment generating noise due to the rotation driving air flow can be greatly improved, and the use experience of users is improved.
Further, the noise reduction structure 106 includes a plurality of baffles 110, and a bending channel is formed between the baffles 110, and sound can propagate in the bending channel. Noise propagates in the tortuous path while also interacting within the tortuous path, and eventually noise is reduced or eliminated.
Further, the baffle 110 includes a side plate 112 and a rib plate 114. Wherein 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 side panels 112 serve to both form walls of the noise reduction structure 106 and to separate adjacent noise reduction structures 106.
One end of the rib plate 114 is connected with 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 together form an internal passage of the noise reduction structure 106 capable of changing the gas flow direction.
It should be noted that, the rib plates 114 inside the same noise reduction structure 106 are connected to different side plates 112 respectively by adjacent rib plates 114, so that noise can be propagated in a zigzag manner in the noise reduction structure 106, so as to increase the distance of noise propagated in the noise reduction structure 106 and further increase 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 circumferentially of the housing 102 to form an opening 108 with the other side plate 112. The plurality of outer wall panels 116 collectively comprise the side walls of the housing 102. The opening 108 formed in this manner is simpler in construction than an opening 108 formed by exclusively punching a sidewall, and the side plate 112 is provided at one end of the opening 108 to facilitate air intake into 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 in the circumferential direction of the housing 102, a plurality of inner wall plates 118 surround to form the communication chamber 104, and a through hole 120 which can communicate to the communication chamber 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 plate of the noise reduction structure 106 closest to the center of the housing 102, and that gas may enter the communication chamber 104 from the through holes 120 between the inner wall plate 118 and the other side plate 112 to provide communication between the noise reduction structures 106.
Further, as shown in fig. 3, the housing 102 has a certain thickness in the axial direction thereof, 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, airflow may more readily enter the noise reduction structure 106 from the opening 108.
Further, when the noise reduction structure 106 is used for noise reduction of blades of a fan or the like, airflow is formed in the circumferential direction of the housing 102, and airflow is also formed in the axial direction of the housing 102. The direction of extension of the opening 108 is not parallel to the axial direction of the housing 102, which may enable more adequate entry of noise into the opening 108.
Further, the noise reduction structures 106 are uniformly arranged along the circumferential direction of the housing 102, so that different positions of the housing 102 in the circumferential direction can be effectively subjected to noise reduction.
In addition, the noise reduction structures 106 are uniformly distributed, so that the internal structure of the housing 102 is more uniform, and further, the circumferential weight distribution of the housing is more balanced and stable in rotation.
Further, a sound absorbing member 122, such as sound absorbing cotton, may be provided in the housing 102. The sound absorbing member 122 is provided on the baffle 110. It is apparent that the air flow enters the noise reducing structure 106 from the opening 108, passes through the baffle 110, and is turned multiple times by the baffle 110, so that noise is eliminated during the turning process of the air flow. The baffle 110 is provided with the sound absorbing member 122, which can also have 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 housing 102. As the fan structure 200 rotates, the blades 202 create wind as well as noise. It will be appreciated that turbulence and thus noise is more likely to form at the connection of the blade 202 to the housing 102. By providing the noise reduction structure 106 inside the housing 102, the noise of the fan structure 200 can be reduced.
Further, the number of the housings 102 is two and coaxially disposed. The blades 202 on the two housings 102 are rotated in opposite directions to form a counter-rotating axial flow fan. Such a blower configuration 200 may achieve a large volume of air for a small body machine, but is typically noisy. The noise reduction structure 106 in the housing 102 can reduce the noise of the fan structure 200 and improve the silencing effect thereof. Particularly, under the action of the noise reduction structure 106, the noise reduction structure has more obvious noise reduction effect on the noise with the 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 special conditions, so that abnormal operation of the whole body occurs is prevented. 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 that the fan structure 200 may achieve an optimal noise reduction effect.
Further, the opening 108 may be a rectangular opening, which may enable noise reduction from directing wind from the opening 108 structure into the noise reduction structure 106.
In addition, as shown in fig. 4, the opening 108 may be formed by a plurality of round holes, and the air enters the noise reduction structure 106 from the plurality of round holes, so that noise reduction may be achieved. Relatively, the rectangular opening structure is simpler, and the effect of admitting air is better.
Further, a sound absorbing member 122, such as sound absorbing cotton, may be provided in the housing 102. The sound absorbing member 122 is provided on the baffle 110. It is apparent that the air flow enters the noise reducing structure 106 from the opening 108, passes through the baffle 110, and is turned multiple times by the baffle 110, so that noise is eliminated during the turning process of the air flow. The baffle 110 is provided with the sound absorbing member 122, which can also have 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 the fan structure 200 in any of the above embodiments is disposed in the apparatus body 404. The device body 404 further includes an indoor unit 402 and an outdoor unit 300 connected by a pipeline, and the fan structure 200 is disposed in the outdoor unit 300.
Any fan structure 200 in any of the above embodiments is disposed in the indoor unit 402, so that any of the above advantages of the first embodiment are provided, and are not described herein.
According to the fan structure and the air conditioner, noise can be effectively reduced, the mute performance of equipment is improved, and the use experience of a user is improved. Can eliminate the broadband noise of the fan structure, and has more obvious silencing effect particularly on middle-low frequency noise, especially the noise below 5000 Hz.
In the present application, the terms "first," "second," "third," and the like 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 defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present application.
In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean 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 present application. In this specification, schematic representations of the above terms 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 application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (9)
1. A fan structure, comprising:
the shell is internally provided with a communication 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 with the communication cavity, the other end of each noise reduction structure is communicated with the opening, and each noise reduction structure comprises a plurality of bending channels;
a plurality of blades arranged on the outer wall of the shell;
the extending direction of the opening is not parallel to the axial direction of the shell.
2. The blower structure of claim 1, comprising:
the noise reduction structure comprises a plurality of baffles, and the bending channels are formed among the baffles.
3. The fan structure of claim 2, wherein the plurality of baffles specifically comprises:
one end of the side plate is connected with the side wall of the shell, and the other end extends to 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. A fan structure as claimed in claim 3, wherein the side plates extend in a radial direction of the housing, the housing comprising:
an outer wall plate, one end of which is connected with the outer end of the side plate, and extends along the circumferential direction of the shell, and the other end of which forms the opening with the other side plate;
an inner wall plate, one end of which is connected with the inner end of the side plate, and which extends along the circumferential direction of the shell,
the inner wall plates surround to form the communication cavity, and a through hole for communicating the communication cavity is formed between the other end of the inner wall plate and the other side plate.
5. The fan structure according to claim 1, wherein a plurality of the noise reduction structures are uniformly arranged along a circumferential direction of the housing.
6. The blower structure of claim 2, further comprising:
the sound absorbing piece is arranged in the shell and arranged on the baffle plate of the noise reduction structure.
7. The fan structure according to claim 1, wherein the number of the housings is two, the two housings are coaxially arranged,
wherein the rotation directions of the blades on the two shells are opposite.
8. An air conditioner, comprising:
an equipment body;
at least one fan structure according to any of claims 1 to 7, provided within the device body.
9. The air conditioner of claim 8, wherein the apparatus body comprises: the indoor unit and the outdoor unit are connected through pipelines;
the fan structure is arranged in the outdoor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011561680.6A CN114688638B (en) | 2020-12-25 | 2020-12-25 | Fan structure and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561680.6A CN114688638B (en) | 2020-12-25 | 2020-12-25 | Fan structure and air conditioner |
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| CN114688638A CN114688638A (en) | 2022-07-01 |
| CN114688638B true CN114688638B (en) | 2023-09-01 |
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| CN114688638A (en) | 2022-07-01 |
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