CN209053810U - Fan - Google Patents
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- CN209053810U CN209053810U CN201821672641.1U CN201821672641U CN209053810U CN 209053810 U CN209053810 U CN 209053810U CN 201821672641 U CN201821672641 U CN 201821672641U CN 209053810 U CN209053810 U CN 209053810U
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- 238000010438 heat treatment Methods 0.000 claims description 27
- 238000005057 refrigeration Methods 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 12
- 239000000654 additive Substances 0.000 claims description 9
- 230000000996 additive effect Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 6
- 241000886569 Cyprogenia stegaria Species 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005485 electric heating Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a kind of fans, fan includes: impeller assembly, impeller assembly includes: the first impeller and the second impeller, multiple first blades that first impeller includes first wheel and is circumferentially arranged on first wheel, multiple second blades that second impeller includes the second wheel hub and is circumferentially arranged on the second wheel hub, first blade is at least partly located on same radial section with the second blade, and multiple first blades are located at the radial outside of multiple second blades；Driving device, driving device and the first impeller, the second impeller are respectively connected with to drive rotation, and the power intake of the first impeller is different from the power intake of the second impeller.Fan according to the present utility model solves the problems, such as that the air supplying distance of fan in the related technology is shorter, and noise is small when use, also comfortably feels very much to people when fan is directly blown against people.
Description
Technical Field
The utility model belongs to the technical field of send out air equipment technique and specifically relates to a fan is related to.
Background
The fan is the air supply equipment that is everywhere visible in daily life, and the fan among the relevant art not only air supply distance is shorter, and the noise is great, and is very uncomfortable when directly blowing to people.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.
Therefore, the utility model discloses a fan, the air supply distance of fan is longer.
According to the utility model discloses a fan, include: an impeller assembly, the impeller assembly comprising: the impeller comprises a first impeller and a second impeller, wherein the first impeller comprises a first hub and a plurality of first blades arranged on the first hub along the circumferential direction, the second impeller comprises a second hub and a plurality of second blades arranged on the second hub along the circumferential direction, at least part of the first blades and the second blades are positioned on the same radial section, and the plurality of first blades are positioned on the radial outer sides of the plurality of second blades; and the driving device is respectively connected with the first impeller and the second impeller to drive the first impeller and the second impeller to rotate, and the power input end of the first impeller is different from the power input end of the second impeller.
According to the utility model discloses a fan, arrange on same radial cross section through at least part with the second blade of first blade, and the power input end of first impeller is different with the power input end of second impeller to solved the shorter problem of air supply distance of the fan among the correlation technique, and small in noise when using, the fan can not have uncomfortable sense even directly when blowing to the people yet.
According to an embodiment of the invention, the fan has at least one operating mode of a first mode and a second mode, in the first mode the power input of the first impeller turns in the opposite direction to the power input of the second impeller; in a second mode, the power input of the first impeller is at a different speed than the power input of the second impeller.
According to another embodiment of the invention, the first blade has an extension from the root to the tip opposite to the extension from the root to the tip of the second blade.
According to a further embodiment of the invention, the exit angle of the first blade and the second blade is different.
According to a further embodiment of the present invention, the driving device comprises a first motor and a second motor, the first motor being connected to the first impeller, the second motor being connected to the second impeller; or the first impeller and the second impeller are driven by the same motor to rotate, and a transmission assembly is arranged between at least one of the first impeller and the second impeller and the motor.
In some embodiments, the fan further comprises: the fan shell limits a mounting cavity, the impeller assembly is rotatably arranged in the mounting cavity, and the driving device is connected to the fan shell.
Further, the fan further includes: an air treatment module for treating air flowing through the mounting cavity.
Specifically, the air treatment module includes: at least one of a heating module, a refrigeration module, a humidification module, a purification module, and an additive module.
Optionally, when the air treatment module comprises the heating module, the heating module comprises a heating rod; when the air treatment module comprises the refrigeration module, the refrigeration module comprises a semiconductor refrigeration piece, and the cold end of the semiconductor refrigeration piece faces the installation cavity to release cold.
In some embodiments, the fan case comprises: the front cover is arranged over against the first impeller and the second impeller, the front cover is positioned on one side, far away from the first hub, of the second hub, and the front cover is in a grid shape; the rear cover is arranged opposite to the front cover and is positioned on one side, far away from the second hub, of the first hub.
Optionally, the rear cover is a closed cover or the rear cover is in a grid shape.
Specifically, a partition cylinder is arranged on the front cover, and the partition cylinder is located on the radial outer side of the second blade and on the radial inner side of the first blade.
Optionally, the fan case comprises: the outer barrel covers the circumferential outer side of the impeller assembly, the front cover and the rear cover respectively cover two ends of the outer barrel, and the axial width of the outer barrel is larger than that of the first blades.
According to the utility model discloses an embodiment, first impeller includes: a support ring which is sleeved outside the second impeller in the radial direction, and to which the plurality of first blades are connected; a plurality of support ribs connected between the support ring and the first hub.
Further, a plurality of the support ribs are arranged at intervals along the circumferential direction, and the extension direction of each support rib in the axial direction is deflected relative to the rotation axis.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of an impeller assembly of a fan according to an embodiment of the present invention;
fig. 2 is a schematic view of a perspective of a fan according to an embodiment of the present invention;
fig. 3 is a schematic view of another perspective of a fan according to an embodiment of the present invention;
fig. 4 is a schematic view of a fan according to another embodiment of the present invention;
fig. 5 is a cross-sectional view of a fan according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a forward air supply of a fan according to one embodiment of the present invention;
FIG. 7 is a schematic diagram of a rearward air supply of a fan according to one embodiment of the present invention;
FIG. 8 is a schematic front-to-back air supply diagram of a fan according to an embodiment of the present invention;
FIG. 9 is another schematic diagram of front and rear air delivery of a fan according to one embodiment of the present invention;
fig. 10 is a side view of a fan according to another embodiment of the present invention;
fig. 11 is a cross-sectional view of a fan according to another embodiment of the present invention;
fig. 12 is a schematic view of one of the air flow paths of a fan according to another embodiment of the present invention;
fig. 13 is a schematic view of another airflow trajectory of a fan according to another embodiment of the present invention.
Reference numerals:
100: a fan; 110: a base;
10: an impeller assembly; 11: a first impeller; 111: a first hub; 112: a first blade; 113: a support ring; 114: supporting ribs;
12: a second impeller; 121: a second hub; 122: a second blade;
20: a drive device; 21: a motor; 22: a transmission assembly;
30: a fan case; 30 a: a mounting cavity; 31: a front cover; 32: a rear cover; 33: a separating cylinder; 34: an outer cylinder;
40: an air treatment module; 41: the module is heated.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
A fan 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 13.
As shown in fig. 1, a fan 100 according to an embodiment of the present invention includes an impeller assembly 10 and a driving device 20, wherein the driving device 20 is used for driving the impeller assembly 10 to rotate.
Specifically, the impeller assembly 10 includes a first impeller 11 and a second impeller 12, wherein the first impeller 11 includes a first hub 111 and a plurality of first blades 112, the plurality of first blades 112 are circumferentially arranged on the first hub 111, the second impeller 12 includes a second hub 121 and a plurality of second blades 122, the plurality of second blades 122 are circumferentially arranged on the second hub 121, it can be understood that the first blades 112 and the second blades 122 in fig. 1 to 3 are both formed into a three-dimensional spiral structure, at least a portion of the first blades 112 and the second blades 122 are located on the same radial cross section, and the plurality of first blades 112 are located on the radial outer sides of the plurality of second blades 122, so as to save space. Here, the radial cross section refers to a cross section perpendicular to the rotational axis of the fan 100. It is proposed herein that at least a portion of the first blades 112 lie in the same radial cross-section as the second blades 122, meaning that there is at least one plane on the fan 100 that is perpendicular to the axis of rotation of the fan 100, and that cuts both the first blades 112 and the second blades 122.
The driving device 20 is connected to the first impeller 11 and the second impeller 12 for driving rotation, and a power input end of the first impeller 11 is different from a power input end of the second impeller 12, that is, the first impeller 11 and the second impeller 12 do not rotate synchronously. Specifically, the first impeller 11 may rotate and the second impeller 12 may be held against rotation, or the first impeller 11 may be held against rotation and the second impeller 12 may be rotated.
It can also be that the rotation direction of first impeller 11 and second impeller 12 is different, for example first impeller 11 anticlockwise rotation, second impeller 12 clockwise rotation, it is different to show still that the rotational speed of first impeller 11 and second impeller 12 is different, for example the rotational speed of first impeller 11 is greater than the rotational speed of second impeller 12, in order to satisfy the air supply mode that fan 100 is different, can select different control mode according to user's different demands, it is more nimble to use, simultaneously, both can improve the air supply distance and the air supply direction of impeller subassembly 10 like this, can improve the wind pressure value again, even make fan 100 directly blow to the people and also can not have uncomfortable sense.
In the fan 100 of the embodiment of the present invention, the rotation speeds of the first impeller 11 and the second impeller 12 may be fixed, and the rotation speeds of the first impeller 11 and the second impeller 12 may also be adjustable, which is not limited herein.
According to the utility model discloses fan 100, arrange on same radial cross section through at least part with second blade 122 of first blade 112, and the power input end of first impeller 11 is different with the power input end of second impeller 12 to the short problem of air supply distance of fan 100 among the correlation technique has been solved, and small in noise when using, also gives other people very comfortable sensation when fan 100 directly blows to the people.
According to an embodiment of the present invention, the fan 100 has at least one operation mode of a first mode and a second mode, specifically, in the first mode, the power input end of the first impeller 11 and the power input end of the second impeller 12 are opposite in direction, and the adjustment of the air blowing direction of the fan 100 is realized by controlling the difference between the rotation directions of the first impeller 11 and the second impeller 12, for example, when the first impeller 11 rotates counterclockwise, the second impeller 12 rotates clockwise, the fan 100 blows air from the back to the front, the air flow operation trajectory is shown in fig. 6, for example, when the first impeller 11 rotates clockwise, the second impeller 12 rotates counterclockwise, the fan 100 blows air from the front to the back, the air flow operation trajectory is shown in fig. 7, and if the fan 100 can blow air from the front to the back simultaneously, the air flow operation trajectory is shown in fig. 8 and 9, thus, on the premise of keeping the opposite rotation directions of the first impeller 11 and the second impeller 12, the air supply direction of the fan 100 can be changed by adjusting the rotation directions of the first impeller 11 and the second impeller 12, and the fan is simple and convenient to operate and more flexible to use.
In the second mode, the power input of the first impeller 11 and the power input of the second impeller 12 are at different speeds, i.e., the rotational speeds of the first impeller 11 and the second impeller 12 are controlled to be different, to achieve a corresponding blowing distance of the fan 100, for example, when the rotation speed of the first impeller 11 is lower than that of the second impeller 12, the air blowing distance of the fan 100 is longer, when the rotation speed of the first impeller 11 is greater than that of the second impeller 12, the blowing distance of the fan 100 is shorter, the adjustment of the blowing distance of the fan 100 is achieved by adjusting the rotation speed of the first impeller 11 and the second impeller 12, and compared with the fan 100 in the related art, the requirement of longer air supply distance can be satisfied, in addition, the wind pressure value can also be improved to the rotational speed size of adjustment first impeller 11 and second impeller 12, has solved the direct uncomfortable problem of blowing to the people of fan 100 effectively.
According to another embodiment of the present invention, the extending direction of the first blade 112 from the root to the end is opposite to the extending direction of the corresponding second blade 122 from the root to the end, that is, the direction of the spiral twist of the first blade 112 is opposite to the direction of the spiral twist of the second blade 122, for example, the end of the first blade 112 extends along the counterclockwise direction and is spirally twisted backward, and the end of the second blade 122 extends along the clockwise direction and is spirally twisted backward, so that, during the rotation of the first impeller 11 and the second impeller 12, the first blade 112 and the second blade 122 can adjust the flowing direction of the airflow while pushing the airflow to flow.
According to another embodiment of the present invention, the outlet angles of the first blade 112 and the second blade 122 are different, for example, when the outlet angle of the first blade 112 is smaller than the outlet angle of the second blade 122, the air flow mainly flows along the front-back direction, the air flow is sucked from the front side of the fan 100 or the air flow to the front side of the fan 100 is smaller, and under the same condition, the forward air supply distance can be increased by concentrating the air supply to the front side, and when the outlet angle of the first blade 112 is larger than the outlet angle of the second blade 122, the air flow can be sucked from the front side of the fan 100 or the air flow to the front side of the fan 100 is larger while flowing along the front-back direction.
According to another embodiment of the present invention, the driving device 20 comprises two motors 21, the two motors 21 are a first motor and a second motor respectively, the first motor is connected to the first impeller 11 for driving the first impeller 11 to rotate, the second motor is connected to the second impeller 12 for driving the second impeller 12 to rotate, the first motor is a power input end of the first impeller 11, the second motor is a power input end of the second impeller 12, thus, the independent control of the rotation direction and the rotation speed of the first impeller 11 and the second impeller 12 can be realized by controlling the first motor and the second motor respectively, for example, the first motor drives the first impeller 11 to rotate counterclockwise, the second motor drives the second impeller 12 to rotate clockwise, the rotation speed of the first motor driving the first impeller 11 is higher, the rotation speed of the second motor driving the second impeller 12 is lower, the power input end of the first impeller 11 and the power input end of the second impeller 12 are independent from each other, the mutual interference is avoided, and the control is convenient.
As shown in fig. 5, according to another embodiment of the present invention, the first impeller 11 and the second impeller 12 are driven by the same motor 21 to rotate, the transmission assembly 22 is disposed between at least one of the first impeller 11 and the second impeller 12 and the motor 21, specifically, the first impeller 11 is directly connected to the motor 21, the transmission assembly 22 is disposed between the second impeller 12 and the motor 21, the second impeller 12 is directly connected to the motor 21, the transmission assembly 22 is disposed between the first impeller 11 and the motor 21, the first impeller 11 and the second impeller 12 are both connected to the motor 21 through the transmission assembly 22, the transmission assembly 22 is disposed between at least one of the first impeller 11 and the second impeller 12 and the motor 21, the rotation direction and the rotation speed of at least one of the impellers are changed by the transmission assembly 22, and further, on the premise of using one motor 21, the power input end of the first impeller 11 is different from the power input end of the second impeller 12, therefore, the first impeller 11 and the second impeller 12 can be controlled to rotate in opposite directions, and the rotating speeds of the first impeller 11 and the second impeller 12 can be respectively adjusted.
According to the present invention, as shown in fig. 1, the first impeller 11 includes a support ring 113 and a plurality of support ribs 114, the support ring 113 is sleeved outside the second impeller 12 in the radial direction, the first blades 112 are connected to the support ring 113, the support ribs 114 are connected between the support ring 113 and the first hub 111, the support ring 113 and the support ribs 114 jointly support the first blades 112, and the support ribs 114 extend backwards in width, which not only enhances the structural strength of the first impeller 11, but also disturbs the airflow when the impeller assembly 10 rotates.
Further, the plurality of first blades 112 are arranged on the support ring 113 at intervals along the circumferential direction, and the extending direction of each support rib 114 in the axial direction is deflected relative to the rotation axis, so that the connection strength of the support rib 114 and the first hub 111 can be increased, the structural strength of the first impeller 11 as a whole is further enhanced, and the airflow disturbance function is provided.
As shown in fig. 2 and 3, according to another embodiment of the present invention, the fan 100 further includes a fan case 30, the fan case 30 defines a mounting cavity 30a, and the impeller assembly 20 is rotatably disposed in the mounting cavity 30 a. The driving device 20 is connected to the fan casing 30, and the fan casing 30 has a protective effect on the impeller assembly 10 and the driving device 20, so that the impeller assembly 10 and the driving device 20 are not interfered and collided by the outside, and meanwhile, when the fan is used, the impeller assembly 10 can be prevented from damaging a human body when rotating, and the fan is safer and more reliable.
Further, as shown in fig. 5 and 11, the fan housing 30 includes a front cover 31 and a rear cover 32, the front cover 31 is disposed opposite to the first impeller 11 and the second impeller 12, the front cover 31 is located on a side of the second hub 121 far from the first hub 111 (i.e., a front side of the second hub 121), the front cover 31 is formed in a grid shape, and may be a mesh structure radiating from a center to the periphery, or may be a plurality of bar-shaped openings arranged in a transverse direction to facilitate air suction or air supply from the front side, the rear cover 32 is located opposite to the front cover 31, the rear cover 32 is located on a side of the first hub 111 far from the second hub 121 (i.e., a rear side of the first hub 111), and the rear cover 32 cooperates with the front cover 31 to define the impeller assembly 10 and the driving device 20 in the fan housing 30.
In the description of the present invention, "a plurality" means two or more.
According to an alternative example of the present invention, as shown in fig. 4, 10 and 11, the rear cover 32 may be a closed cover such that the fan 100 draws air from the front cover 31 and blows air from the front cover 31. For example, in the fan 100 shown in fig. 12 and 13, the two air flow running tracks are opposite in the rotation directions of the first impeller 11 and the second impeller 12, so as to improve the air blowing direction of the fan 100. For example, when the first impeller 11 rotates in a counterclockwise direction and the second impeller 12 rotates in a clockwise direction, the fan 100 operates in an airflow manner as shown in fig. 12. For example, when the first impeller 11 rotates clockwise and the second impeller 12 rotates counterclockwise, the fan 100 follows the airflow path shown in fig. 13.
According to another alternative example of the present invention, as shown in fig. 3, 5 and 6, the rear cover 32 may also be formed in a grid shape, if the rear cover 32 is formed in a grid shape, the air may flow along the front-rear direction, and the air is pumped from the front side to the rear side or pumped from the rear side to the front side, and the structural form of the rear cover 32 may be specifically selected as needed, which is not specifically limited by the present invention.
According to another optional example of the present invention, a partition 33 is disposed on the front cover 31, the partition 33 is located on the radial outer side of the second blade 122 and located on the radial inner side of the first blade 112, and the partition 33 is disposed on the front cover 31 to divide the first blade 112 and the second blade 122 into different regions, so as to draw air from different ranges or supply air to different ranges, thereby increasing the air drawing amount of the fan 100 and the air supply range of the fan 100 in space. The region where the first blade 112 is located outside the region where the second blade 122 is located, if a forward air supply mode is adopted, air is sucked from the rear side of the fan 100, air flow can be respectively sent out from the region where the first blade 112 is located in an annular mode and sent out from the region where the second blade 122 is located in a forward mode, the air supply range of the fan 100 in space is enlarged, if a backward air supply mode is adopted, air is sucked from the front side of the fan 100, specifically, air flow can respectively enter from the region where the first blade 112 is located in an annular mode and enter from the region where the second blade 122 is located in a forward mode, then the air is intensively sent out from the rear side of the fan 100, the air suction amount of the fan 100 is increased, and the air supply distance is further increased.
If the front-back simultaneous air supply mode is adopted, the air flow part sucked from the back side is sent out from the area ring where the first blade 112 is located and sent out to the front side from the area where the second blade 122 is located, the other part enters from the area ring where the second blade 122 is located after being sent out from the area ring where the first blade 112 is located, and then is sent out from the back side of the fan 100, namely, air is sucked and supplied from the front side and the back side of the fan 100, and the air supply direction and the air supply distance are improved.
Alternatively, as shown in fig. 5 and 11, the fan casing 30 includes an outer cylinder 34, the outer cylinder 34 covers the outer circumferential side of the impeller assembly 10, the front cover 31 and the rear cover 32 cover both ends of the outer cylinder 34, respectively, the axial width of the outer cylinder 34 is greater than the axial width of the first blade 11, after the air enters the installation cavity 30a, the air can be kept in the area covered by the outer cylinder 34 for a period of time, and the air collecting function is provided, so that the air can be further blown under the driving of the impeller assembly 10, and the air can be collected in the area covered by the outer cylinder 34, which is beneficial for the air treatment module 40 to treat the air, for example, the heating module 41 can sufficiently heat the air.
It should be noted that the fan 100 further includes a base 110, the base 110 is used for supporting the fan casing 30 and the impeller assembly 10, and a control unit is arranged at the front side of the base 110 and used for controlling the start and stop of the fan 100 and adjusting the air supply amount.
In some embodiments, fan 100 also includes an air treatment module 40, air treatment module 40 being configured to treat air flowing through mounting cavity 30 a. Here, the air treatment module 40 may be disposed on the fan case 30, and the air treatment module 40 may also be disposed on the housing of the driving device 20, which is not limited herein. The air treatment module 40 is arranged on the fan 100, so that the fan 100 can adapt to seasonal changes and user requirements, and the function diversification of the fan 100 is realized.
Specifically, the air treatment module 40 may be disposed between the first impeller 11 and the second impeller 12, or disposed at the rear side of the first impeller 11, for example, the air treatment module 40 may be a heating module 41 for heating the air flowing through the installation cavity, a cooling module for cooling the air flowing through the installation cavity, a purifying module for purifying the air, or a combination of a plurality of the foregoing modules, and the air treatment module 40 treats the air in the process of conveying the air, so that the air sent out by the fan 100 meets the requirements of the user.
According to the utility model discloses an embodiment, air treatment module 40 includes heating module 41, the refrigeration module, the humidification module, the purification module, at least one in the additive module, for example air treatment module 40 is heating module 41, heating module 41 establishes between impeller subassembly 10 or establishes the rear side at impeller subassembly 10, be used for carrying out the abundant heating to the air in installation cavity 30a, if can start heating module 41 when using in summer, make that what fan 100 sent away is the air of higher temperature, be the refrigeration module for air treatment module 40, the rear side at impeller subassembly 10 is established to the refrigeration module, if can start the refrigeration module when using in summer, be used for cooling down to the air in installation cavity 30 a.
Along with the gradual promotion of user's demand for quality of life, air treatment module 40 can also be humidification module, humidification module establishes the rear side at impeller subassembly 10 for improve the air humidity in installation cavity 30a, avoid indoor air too dry, air treatment module 40 can also be additive module, for example, the additive in the additive module is stacte agent, disinfectant etc. establishes in installation cavity 30a through establishing additive module, can propagate to indoor fast through the flow of air current, provide faint scent or healthy respiratory environment for the user.
The air treatment module 40 may also be a combination of various modules in the above embodiments, for example, the air treatment module 40 includes a heating module 41 and a cooling module, when the heating module 41 is used, the cooling module is in a closed state, when the cooling module is used, the heating module 41 is in a closed state, and if the air treatment module 40 includes the heating module 41, a humidifying module and an additive module, the heating module 41, the humidifying module and the additive module may be simultaneously turned on, and the above various modules are selected according to actual needs, and have various functions to meet the needs of different users.
According to the utility model discloses a further embodiment, air treatment module 40 includes heating module 41, and heating module 41 is located between first impeller 11 and the second impeller 12, and the fan among the correlation technique generally uses more in summer, winter is because blow and make the people feel colder and use and receive the restriction, the utility model discloses fan 100, air are when flowing through impeller subassembly 10, and heating module 41 can heat the air simultaneously to promote the air temperature of sending out, even still can use when external environment temperature is lower, can not receive season, external environment's restriction.
According to an optional example of the present invention, the heating module 41 includes a plurality of electric heating rods, the plurality of electric heating rods are spaced apart from each other around the driving device 20, and the electric heating rods release heat to heat the air into the installation cavity 30a, so that the plurality of electric heating rods are spaced apart from each other in the circumferential direction of the driving device 20, and the air can be heated around the driving device 20 as a center, thereby improving the heating efficiency, and the heating is more uniform.
According to the utility model discloses a still another embodiment, air treatment module 40 includes the refrigeration module, and the refrigeration module is established at the rear side of impeller subassembly 10, and the refrigeration module includes a plurality of semiconductor refrigeration pieces, and the cold junction of semiconductor refrigeration piece is towards installation cavity 30a release cold volume to reduce the air temperature in installation cavity 30a, provide nice and cool environment for the user.
In the description of the present invention, "a plurality" means two or more.
According to another embodiment of the present invention, the extending direction of the first blade 112 from the root to the end is opposite to the extending direction of the corresponding second blade 122 from the root to the end, that is, the direction of the spiral twist of the first blade 112 is opposite to the direction of the spiral twist of the second blade 122, for example, the end of the first blade 112 extends along the counterclockwise direction and is spirally twisted backward, and the end of the second blade 122 extends along the clockwise direction and is spirally twisted backward, so that, during the rotation of the first impeller 11 and the second impeller 12, the first blade 112 and the second blade 122 can adjust the flowing direction of the airflow while pushing the airflow to flow.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "front", "back", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Other constructions and operations of the fan 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or 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 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.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (15)
1. A fan, comprising:
an impeller assembly, the impeller assembly comprising: the impeller comprises a first impeller and a second impeller, wherein the first impeller comprises a first hub and a plurality of first blades arranged on the first hub along the circumferential direction, the second impeller comprises a second hub and a plurality of second blades arranged on the second hub along the circumferential direction, at least part of the first blades and the second blades are positioned on the same radial section, and the plurality of first blades are positioned on the radial outer sides of the plurality of second blades;
and the driving device is respectively connected with the first impeller and the second impeller to drive the first impeller and the second impeller to rotate, and the power input end of the first impeller is different from the power input end of the second impeller.
2. The fan as claimed in claim 1, wherein the fan has at least one of a first mode and a second mode of operation,
in a first mode, the power input of the first impeller is counter-rotating to the power input of the second impeller;
in a second mode, the power input of the first impeller is at a different speed than the power input of the second impeller.
3. The fan as claimed in claim 1, wherein the first blade extends from the root to the tip in a direction opposite to a direction in which the corresponding second blade extends from the root to the tip.
4. The fan as claimed in claim 1, wherein the exit angles of the first and second blades are different.
5. The fan of claim 1 wherein said drive means includes a first motor and a second motor, said first motor being connected to said first impeller and said second motor being connected to said second impeller; or,
the first impeller and the second impeller are driven by the same motor to rotate, and a transmission assembly is arranged between at least one of the first impeller and the second impeller and the motor.
6. The fan as claimed in claim 1, further comprising: the fan shell limits a mounting cavity, the impeller assembly is rotatably arranged in the mounting cavity, and the driving device is connected to the fan shell.
7. The fan as claimed in claim 6, further comprising: an air treatment module for treating air flowing through the mounting cavity.
8. The fan of claim 7, wherein the air treatment module comprises: at least one of a heating module, a refrigeration module, a humidification module, a purification module, and an additive module.
9. The fan of claim 8 wherein when the air treatment module comprises the heating module, the heating module comprises a heating rod; when the air treatment module comprises the refrigeration module, the refrigeration module comprises a semiconductor refrigeration piece, and the cold end of the semiconductor refrigeration piece faces the installation cavity to release cold.
10. The fan of claim 6, wherein the fan case comprises:
the front cover is arranged over against the first impeller and the second impeller, the front cover is positioned on one side, far away from the first hub, of the second hub, and the front cover is in a grid shape;
the rear cover is arranged opposite to the front cover and is positioned on one side, far away from the second hub, of the first hub.
11. The fan as claimed in claim 10, wherein the rear cover is a closed cover or the rear cover is a grill-like shape.
12. The fan as claimed in claim 10, wherein a partition is provided on the front cover, the partition being located radially outward of the second blades and radially inward of the first blades.
13. The fan as claimed in claim 10, wherein the fan case comprises: the outer barrel covers the circumferential outer side of the impeller assembly, the front cover and the rear cover respectively cover two ends of the outer barrel, and the axial width of the outer barrel is larger than that of the first blades.
14. The fan as claimed in claim 1, wherein the first impeller comprises:
a support ring which is sleeved outside the second impeller in the radial direction, and to which the plurality of first blades are connected;
a plurality of support ribs connected between the support ring and the first hub.
15. The fan as claimed in claim 14, wherein a plurality of the support ribs are arranged at intervals in a circumferential direction, and each of the support ribs extends in an offset direction with respect to the rotational axis in the axial direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821672641.1U CN209053810U (en) | 2018-10-15 | 2018-10-15 | Fan |
| PCT/CN2018/122755 WO2020077826A1 (en) | 2018-10-15 | 2018-12-21 | Fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821672641.1U CN209053810U (en) | 2018-10-15 | 2018-10-15 | Fan |
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| Publication Number | Publication Date |
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| CN209053810U true CN209053810U (en) | 2019-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821672641.1U Active CN209053810U (en) | 2018-10-15 | 2018-10-15 | Fan |
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