CN211924568U - Fan and blower - Google Patents
Fan and blower Download PDFInfo
- Publication number
- CN211924568U CN211924568U CN201922354011.0U CN201922354011U CN211924568U CN 211924568 U CN211924568 U CN 211924568U CN 201922354011 U CN201922354011 U CN 201922354011U CN 211924568 U CN211924568 U CN 211924568U
- Authority
- CN
- China
- Prior art keywords
- fan
- passage portion
- housing
- motor
- passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a fan, air supply arrangement. The fan has a motor, an impeller, and a 1 st housing. The 1 st housing has: a housing base part attached to a stator of the motor; a casing cover part provided with a 1 st air inlet; and a passage portion arranged radially outward of the motor and extending in a circumferential direction. The impeller attached to the lower portion of the motor is disposed between the casing base portion and the casing cover portion in the axial direction. The passage portion is connected to the radially outer ends of the housing base portion and the housing cover portion. The axial width of the passage portion becomes larger from one end portion in the circumferential direction of the passage portion toward the other end portion, and the upper end of the passage portion is disposed at a position further above. The other end portion in the circumferential direction of the passage portion is provided with a 1 st exhaust port.
Description
Technical Field
The utility model relates to a fan and air supply arrangement.
Background
Conventionally, a fan is mounted in an air blowing device such as an air cleaner. The fan may be a centrifugal fan such as a centrifugal sirocco fan disclosed in Japanese patent application laid-open No. 2007-291877. The centrifugal multiblade blower includes: a cylindrical fan having a plurality of blades; and an electric motor that rotationally drives the fan. The fan is housed in a scroll housing, the scroll wall of which extends in a spiral. The volute wall portion is curved such that a radial distance from a center of the fan increases as a volute angle from a reference position increases. The 1 st end wall is connected to the upper end of the scroll wall. The 2 nd end wall is connected to the lower end of the volute wall, and the 2 nd end wall is parallel to a plane perpendicular to the axis of the fan. The 1 st end wall includes a flat surface parallel to a plane perpendicular to the axis of the fan and an inclined surface obliquely connected to the flat surface. The distance between the inclined surface and the 2 nd end wall increases from upstream toward downstream. Therefore, the cross-sectional area of the scroll flow path in the scroll casing gradually increases from the upstream side to the downstream side.
In the centrifugal multiblade blower of japanese laid-open patent publication No. 2007-291877, the lower end portion of the electric motor protrudes below the 2 nd end wall. Therefore, the axial dimension of the centrifugal multiblade blower is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fan and air supply arrangement that can restrain axial dimension increase.
An exemplary fan of utility model 1 includes: a motor; an impeller installed at a lower portion of the motor; and a 1 st housing that houses the impeller therein. The motor has: a rotor rotatable together with the impeller around a central axis extending in a vertical direction; and a stator that is radially opposed to the rotor. The impeller has: an impeller base fixed to the rotor and extending radially outward from the central axis; and a plurality of blades arranged on a lower surface of the impeller base and arranged in a circumferential direction. The 1 st housing has: a housing base portion attached to the stator; a casing cover part provided with a 1 st air inlet; and a passage portion arranged radially outward of the motor and extending in a circumferential direction. The housing cover portion is disposed below the housing base portion and axially faces the housing base portion. The impeller is disposed between the casing base portion and the casing cover portion in the axial direction. The passage portion is connected to a radially outer end portion of the housing base portion and a radially outer end portion of the housing cover portion. The axial width of the passage portion becomes larger from one end portion in the circumferential direction of the passage portion toward the other end portion, and the upper end of the passage portion is disposed at a position further above. The other end portion in the circumferential direction of the passage portion is provided with a 1 st exhaust port.
An exemplary fan according to claim 2 is the fan according to claim 1, wherein an axial width of the passage portion at the 1 st exhaust port is larger than an axial width of the motor.
An exemplary fan according to claim 3 is the fan according to claim 1, wherein the passage portion has a plurality of passage portions, and the 1 st exhaust port of each of the passage portions is arranged at equal intervals in a circumferential direction.
An exemplary fan according to claim 4 is the fan according to any one of claims 1 to 3, wherein the upper end of the passage portion in the 1 st exhaust port is disposed at a position above the upper end of the motor.
An exemplary fan according to claim 5 is the fan according to any one of claims 1 to 3, wherein a lower end of the passage portion is disposed at a position above the 1 st air inlet.
The exemplified fan of utility model 6 is based on any one of utility model 1 to utility model 3, wherein the radial width of the passage portion is constant in the circumferential direction.
An exemplary fan according to claim 7 is based on any one of the fans of the first to third inventions 1 to 3, wherein the other end of the passage portion extends straight in a direction perpendicular to the axial direction.
An exemplary fan according to utility model 8 is based on any one of utility model 1 to utility model 3, wherein the fan further includes a battery for supplying electric power to the motor, and the battery is disposed at a position closer to a radially inner side than the passage portion.
An exemplary fan according to claim 9 is the fan according to claim 8, wherein an upper end of the battery is disposed at a position lower than an upper end of the passage portion at the 1 st exhaust port.
An exemplary air blowing device of the present invention is provided with: the fan according to any one of utility model 1 to utility model 9; and a 2 nd case that houses the fan therein. The 2 nd casing is provided with a 2 nd suction port communicating with the 1 st suction port of the fan and a 2 nd exhaust port communicating with the 1 st exhaust port of the fan.
An exemplary air supply device according to claim 11 is based on the air supply device according to claim 10, wherein the air supply device further includes a filter housed in the 2 nd casing, and the 2 nd air inlet is communicated with the 1 st air inlet via the filter.
An exemplary air blowing device of utility model 12 includes: the fan according to any one of utility model 1 to utility model 9; a 2 nd casing which houses the fan therein; a turntable which is disposed below the 2 nd housing and supports the 2 nd housing; and a turntable driving motor capable of driving the turntable so that the turntable rotates about a turntable rotation axis extending up and down.
An exemplary air supply device of the 13 th utility model is based on the air supply device of the 12 th utility model, wherein the central axis is coaxial with the turntable rotation axis.
According to the utility model discloses fan and air supply arrangement exemplified can restrain the increase of axial dimensions.
The above and other features, elements, steps, characteristics and advantages of the present invention will be more clearly understood from the following detailed description of preferred embodiments of the present invention with reference to the accompanying drawings.
Drawings
Fig. 1 is a perspective view of a part of an air blowing device according to an embodiment.
Fig. 2 is a perspective cross-sectional view of the air blowing device of the embodiment.
Fig. 3 is a perspective view of the 1 st housing of the embodiment.
Fig. 4 is a cross-sectional view of the air blowing device of the embodiment as viewed from above.
Fig. 5 is a perspective view of a part of the air blowing device according to modification 1.
Fig. 6 is a perspective cross-sectional view of the blower device according to modification 1.
Fig. 7 is a perspective view of the 1 st case of the 1 st modification.
Fig. 8 is a cross-sectional view of the blower device according to modification 1 as viewed from above.
Fig. 9 is a perspective view of the blower device according to modification 2.
Fig. 10 is a longitudinal sectional view of the blower device according to modification 2.
Fig. 11 is a perspective sectional view showing a turntable mechanism according to modification 2.
Detailed Description
Hereinafter, exemplary embodiments of the present invention will be described with reference to the drawings.
In the present specification, the direction parallel to the central axis CA in the air blowing devices 100 and 100a and the fans 1 and 1a is referred to as an "axial direction". The direction from the case lid portion 42 to the case base portion 41 of the 1 st case 4, 4a in the axial direction is referred to as "upward", and the direction from the case base portion 41 to the case lid portion 42 is referred to as "downward". In each component, the upper end is referred to as "upper end", and the position of the upper end in the axial direction is referred to as "upper end". The lower end is referred to as a "lower end", and the position of the lower end in the axial direction is referred to as a "lower end". In addition, among the surfaces of the respective components, the surface facing upward is referred to as "upper surface", and the surface facing downward is referred to as "lower surface".
In addition, a direction perpendicular to the center axis CA is referred to as a "radial direction". In the radial direction, a direction approaching the center axis CA is referred to as "radially inner side", and a direction away from the center axis CA is referred to as "radially outer side". In each component, the radially inner end is referred to as a "radially inner end", and the position of the radially inner end is referred to as a "radially inner end". The radially outer end is referred to as a "radially outer end", and the radially outer end is referred to as a "radially outer end". Among the side surfaces of the respective components, the side surface facing radially inward is referred to as "inner side surface", and the side surface facing radially outward is referred to as "outer side surface".
The rotational direction about the center axis CA is referred to as "circumferential direction". In each component, a circumferential end is referred to as a "circumferential end", and a circumferential end position in the circumferential direction is referred to as a "circumferential end". One circumferential end is referred to as a "circumferential end", and a position at one circumferential end in the circumferential direction is referred to as a "circumferential end". The other circumferential end is referred to as "the other circumferential end", and the position of the other circumferential end in the circumferential direction is referred to as "the other circumferential end". Among the side surfaces of the respective components, the side surface facing in the circumferential direction is referred to as a "circumferential side surface". The side surface facing in one circumferential direction is referred to as a "circumferential one-side surface", and the side surface facing in the other circumferential direction is referred to as a "circumferential other-side surface".
In addition, when the device is incorporated into an actual apparatus, the above-described matters are not strictly applied.
Fig. 1 is a perspective view of an air blowing device 100 according to an embodiment. Fig. 2 is a perspective cross-sectional view of air blower 100 according to the embodiment. Fig. 1 shows a 2 nd casing 120, which will be described later, in a transparent manner so that the inside thereof can be seen through. Fig. 2 shows a virtual cross-sectional configuration in the case where the air blowing device 100 is cut by a plane along the two-dot chain line a-a of fig. 1 and including the central axis CA.
The air blowing device 100 of the present embodiment is an air cleaner. However, the application of the air blowing device 100 is not limited to this example.
As shown in fig. 1 and 2, the air blowing device 100 includes a fan 1. The fan 1 sends out air sucked through the 1 st air inlet 11 through the 1 st air outlet 12. The structure of the fan 1 will be described later.
The blower device 100 also has a 2 nd casing 120. The 2 nd case 120 houses the fan 1 therein. The 2 nd casing 120 is provided with a 2 nd intake port 101 and a 2 nd exhaust port 102. The 2 nd inlet 101 communicates with the 1 st inlet 11 of the fan 1. The 2 nd exhaust port 102 communicates with the 1 st exhaust port 12 of the fan 1. As described later, since the axial dimension of the fan 1 can be suppressed from increasing, the axial dimension of the air blowing device 100 on which the fan 1 is mounted can also be suppressed from increasing. Further, the airflow can be sent out from the 2 nd exhaust port 102 over a wide range in the axial direction.
As shown in fig. 1, the 2 nd housing 120 includes a front housing 121, a rear housing 122, and a lower housing 123. The front case 121 and the rear case 122 constitute an upper portion of the 2 nd case 120. Lower case portion 123 is a lower portion of case 2 120, and covers lower end portions of front case portion 121 and rear case portion 122. Fan 1 is housed in a space surrounded by front case 121, rear case 122, and lower case 123.
Next, air blower 100 further includes filter 110. The filter 110 is housed inside the 2 nd case 120. The 2 nd inlet port 101 communicates with the 1 st inlet port 11 via a filter 110. The filter 110 collects dust contained in the air sucked through the 2 nd air inlet 101 of the air blower 100. Accordingly, the blower 100 can send a cleaner airflow from the 2 nd exhaust port 102. That is, the air blower 100 can obtain an air cleaning function.
As shown in fig. 1, air blower 100 further includes control board 131, LED132, PIR (passive infra-red) sensor 133, air volume changeover switch 134, and power switch 135. The control board 131 is mounted with a circuit, elements, and the like (not shown) for controlling driving of the components of the air blowing device 100. For example, the control board 131 is mounted with a motor driver (not shown) that controls the motor 2 of the fan 1. The LED132 is a light emitting element for controlling light emission by an actuator mounted on the control board 131, for example. The PIR sensor 133 detects movement of an object existing outside the air blowing device 100. For example, the PIR sensor 133 detects infrared rays incident from the outside, and detects movement of a generation source of the infrared rays based on a change in intensity of the detected infrared rays, or the like. The infrared ray is generated from the flesh of a human body or an animal. For example, the switching of the air blowing device 100 can be automatically controlled based on the detection result of the PIR sensor 133. Further, by controlling the driving of the motor 2 based on the detection result, the air volume sent from the 1 st exhaust port 12 of the fan 1 can be automatically adjusted. The air volume changeover switch 134 is a switching element for adjusting the air volume delivered from the 2 nd exhaust port 102 of the blower 100. The user can manually adjust the air volume sent from the 1 st exhaust port 12 of the fan 1 by operating the air volume changeover switch 134. The power switch 135 is a switching element for switching the air blowing device 100 on and off.
Next, the structure of the fan 1 will be described with reference to fig. 1 and 2. As shown in fig. 1 and 2, the fan 1 includes a motor 2, an impeller 3, and a 1 st housing 4. The impeller 3 is mounted on the lower portion of the motor 2. The 1 st casing 4 houses the impeller 3 therein. In addition, the fan 1 also has a battery 5. The battery 5 supplies power to the motor 2.
The motor 2 is a driving device for rotating the impeller 3. In the present embodiment, the motor 2 is a spindle motor. By making the axial width of the motor 2 smaller, the increase in the axial dimension of the fan 1 can be suppressed. However, the present embodiment is not limited to the example, and the motor 2 other than the spindle motor may be used. The motor 2 has a rotor 21 and a stator 22. The rotor 21 is rotatable together with the impeller 3 about a central axis CA extending in the vertical direction. The stator 22 is radially opposed to the rotor 21. When the motor 2 is driven, the stator 22 drives the rotor 21 to rotate about the center axis CA.
In the present embodiment, the impeller 3 is directly attached to the rotor 21 of the motor 2. However, the present invention is not limited to this example, and the impeller 3 may be a part of the rotor 21. Alternatively, the impeller 3 may be indirectly attached to the rotor 21 via an attachment member or the like.
The impeller 3 has an impeller base 31 fixed to the rotor 21. The impeller base 31 expands radially outward from the center axis CA.
The impeller 3 also has a shroud 32. The shroud 32 is disposed below the impeller base 31. An opening (reference numeral omitted) that penetrates the shroud 32 in the axial direction is provided in the center of the shroud 32. The inside of the impeller 3 communicates with the outside of the fan 1 via the opening and the 1 st suction port 11.
The impeller 3 further includes blades 33 disposed on the lower surface of the impeller base 31. The plurality of blades 33 are arranged in the circumferential direction. The blades 33 are disposed between the impeller base 31 and the shroud 32 in the axial direction. The upper end of each blade 33 is connected to the lower surface of the impeller base 31. The lower end of each vane 33 is connected to the upper surface of the shroud 32.
Next, the structure of the 1 st case 4 will be described with reference to fig. 1, 2, 3, and 4. Fig. 3 is a perspective view of the 1 st housing 4 of the embodiment. Fig. 4 is a cross-sectional view of air blower 100 of the embodiment as viewed from above. Fig. 4 shows a virtual cross-sectional configuration in the case where the air blower 100 is cut by a plane along the two-dot chain line B-B in fig. 1 and perpendicular to the center axis CA.
The 1 st housing 4 has a housing base portion 41 attached to the stator 22. The housing base portion 41 has a plate shape expanding outward in the radial direction.
The 1 st housing 4 further has a housing cover portion 42 provided with the 1 st air inlet 11. The case cover 42 is disposed below the case base 41 and axially faces the case base 41. In the present embodiment, the 1 st air inlet 11 is provided in the central portion of the casing cover 42 and overlaps the center axis CA as viewed in the axial direction.
The impeller 3 is disposed between the casing base portion 41 and the casing cover portion 42 in the axial direction.
The 1 st housing 4 further includes a passage portion 43 arranged radially outward of the motor 2. The passage portion 43 extends in the circumferential direction. The airflow sent from the 1 st intake port 11 to the 1 st exhaust port 12 by the rotation of the impeller 3 flows through the passage portion 43. The lower end of the passage portion 43 is covered with the case cover portion 42. The passage portion 43 has an inner wall portion 431, an outer wall portion 432, and an upper wall portion 433. The inner wall portion 431 extends upward from a radially outer end portion of the housing base portion 41 and extends in the circumferential direction. The outer wall portion 432 is disposed radially outward of the inner wall portion 431, extends upward from a radially outer end portion of the housing cover 42, and extends in the circumferential direction. The outer wall 432 and the inner wall 431 are opposed to each other with a gap in the radial direction. The upper wall portion 433 covers an upper end portion of a gap between the inner wall portion 431 and the outer wall portion 432. The radially inner end portion of the upper wall portion 433 is connected to the upper end portion of the inner wall portion 431. The radially outer end of the upper wall portion 433 is connected to the upper end of the outer wall portion 432. Further, a lower end portion of the gap between the inner wall portion 431 and the outer wall portion 432 is covered by the case cover portion 42.
The passage portion 43 is connected to a radially outer end portion of the housing base portion 41 and a radially outer end portion of the housing cover portion 42. More specifically, the lower end portion of the inner wall portion 431 is connected to the radially outer end portion of the housing base portion 41. The lower end portion of the outer wall portion 432 is connected to the radially outer end portion of the housing cover portion 42. The axial width of the passage portion 43 becomes larger from one end portion in the circumferential direction of the passage portion 43 toward the other end portion. Further, the upper end of the passage portion 43 is disposed at a position further upward. That is, the upper end of the passage portion 43 is disposed at a position further upward from one end portion in the circumferential direction of the passage portion 43 toward the other end portion. In other words, the upper end of the passage portion 43 is disposed at a position further upward from the upstream side toward the downstream side of the airflow. Further, the axial width of the inner wall portion 431 and the axial width of the outer wall portion 432 become larger, and the upper end of the inner wall portion 431 and the upper end of the outer wall portion 432 are disposed at a position further upward. The 1 st exhaust port 12 is provided at the other end portion in the circumferential direction of the passage portion 43.
Since the axial width of the passage portion 43 increases from one end portion in the circumferential direction of the passage portion 43 toward the other end portion, the axial width of the 1 st exhaust port 12 can be made larger. Further, the axial position of the upper end of the passage portion 43 changes from the one end portion to the other end portion in the circumferential direction of the passage portion 43 toward the upper side of the motor 2 from the impeller 3 in the axial direction. Therefore, even if the passage portion 43 having the above-described shape is provided, the axial dimension of the fan 1 is not easily increased. Thereby, an increase in the axial dimension of the fan 1 due to the provision of the passage portion 43 can be suppressed, and the fan 1 can send the airflow from the 1 st exhaust port 12 in a wider range in the axial direction.
The axial width Wa (see fig. 3) of the passage portion 43 at the 1 st exhaust port 12 is larger than the axial width of the motor 2. In this way, the motor 2 does not easily protrude above the passage portion 43, and therefore, the increase in the axial dimension of the fan 1 can be further suppressed.
In the present embodiment, the passage portion 43 includes a plurality of portions. The 1 st exhaust ports 12 of the respective passage portions 43 are preferably arranged at equal intervals in the circumferential direction. Therefore, the fan 1 can send out the airflow more uniformly in the circumferential direction. However, the present invention is not limited to this example, and the 1 st exhaust ports 12 of the respective passage portions 43 may not be arranged at equal intervals in the circumferential direction. In fig. 1 to 4, the number of the passage portions 43 is 2. However, the number of the passage portions 43 is not limited to the examples of fig. 1 to 4, and may be a plurality other than 2.
The upper end of the passage portion 43 at the 1 st exhaust port 12 is preferably arranged above the upper end of the motor 2 as shown in fig. 1 and 2. The lower end of the passage portion 43 is disposed below the lower end of the motor 2. Thus, the motor 2 does not protrude above and below the passage portion 43. Therefore, the axial dimension of the fan 1 can be prevented from increasing compared to the dimension in which the axial width of the passage portion 43 in the vicinity of the 1 st exhaust port 12 is considered.
The lower end of the passage portion 43 is preferably arranged above the 1 st air inlet 11 as shown in fig. 1 and 2. For example, the lower end of the inner wall 431 and the lower end of the outer wall 432 are disposed above the 1 st air inlet 11. In this way, the air sucked into the 1 st air inlet 11 does not flow to a position below the 1 st air inlet 11, and therefore, the air is easily smoothly flowed toward the passage portion 43 by the rotation of the impeller 3. Therefore, the airflow rate of the airflow sent out from the 1 st exhaust port 12 can be increased. However, the lower end of the passage portion 43 is not limited to this example, and may be disposed at the same axial position as the 1 st air inlet 11 or below the 1 st air inlet 11.
The radial width Wr of the passage portion 43 is preferably constant in the circumferential direction. The radial width Wr is a width of the passage portion 43 in a direction perpendicular to the direction in which the airflow flows in the passage portion 43 and the axial direction. For example, the distance between the outer side surface of the inner wall portion 431 and the inner side surface of the outer wall portion 432 is preferably constant. In this way, the radial width Wr of the passage portion 43 does not increase from one end portion in the circumferential direction of the passage portion 43 toward the other end portion. Therefore, an increase in the radial dimension of the fan 1 can be suppressed. However, the radial width Wr of the passage portion 43 is not limited to this example, and may not be constant in the circumferential direction.
The other end of the passage portion 43 preferably extends straight in a direction perpendicular to the axial direction as shown in fig. 4. As described above, for example, compared to a configuration in which the other end portion of the passage portion 43 is expanded in a direction perpendicular to the direction in which the other end portion of the passage portion 43 extends and the axial direction, the air flow sent out from the 1 st exhaust port 12 is less likely to generate turbulence. Therefore, the 1 st exhaust port 12 can be prevented from lowering the amount of the airflow to be sent. However, the present invention is not limited to this example, and the direction in which the other end portion of the passage portion 43 extends may be curved when viewed in the axial direction.
In the present embodiment, the housing base portion 41 and the passage portion 43 are portions of the same member that are different from each other, and are formed by, for example, integral molding. The case cover 42 is a member different from the case base 41 and the passage 43. However, the present embodiment is not limited to the example, and the housing base portion 41, the housing cover portion 42, and the passage portion 43 may be different portions of the same member. For example, the housing base portion 41, the housing cover portion 42, and the passage portion 43 may all be formed by integral molding. Alternatively, one of the housing base portion 41 and the passage portion 43 and the housing cover portion 42 may be different parts of the same member. In this case, the other of the housing base portion 41 and the passage portion 43 is a member different from the member including the housing cover portion 42. In this way, some of the housing base portion 41, the housing cover portion 42, and the passage portion 43 may be a member different from the other portions.
At least one of the housing base portion 41, the housing cover portion 42, and the passage portion 43 may be 1 component formed by, for example, integral molding. Alternatively, at least one of the housing base portion 41, the housing cover portion 42, and the passage portion 43 may be a member including a plurality of components divided, for example, may include a plurality of components divided in the circumferential direction.
That is, the housing base portion 41, the housing cover portion 42, and the passage portion 43 are names of different portions of the 1 st housing 4, and are not limited to different members of the 1 st housing 4.
The battery 5 is disposed radially inward of the passage portion 43. This can suppress an increase in the radial dimension of the fan 1 due to the mounting of the large-capacity battery 5.
The upper end of the battery 5 is preferably disposed below the upper end of the passage portion 43 at the 1 st exhaust port 12. In this way, the fan 1 can employ the battery 5 having the axial dimension as large as the upper end of the battery 5 is not disposed above the upper end of the passage portion 43 in the vicinity of the 1 st exhaust port 12. Therefore, it is possible to suppress an increase in the axial dimension of the fan 1 due to the provision of the batteries 5, and to mount the batteries 5 on the fan 1 to such an extent that the upper ends of the batteries 5 do not exceed the upper ends of the passage portions 43 at the 1 st exhaust ports 12. However, the upper end of the battery 5 is not limited to this example, and may be disposed at the same axial position as the upper end of the passage portion 43 at the 1 st exhaust port 12, or may be disposed above the upper end of the passage portion 43 at the 1 st exhaust port 12.
Next, a 1 st modification of the embodiment will be described. Hereinafter, a structure different from the above embodiment will be described. The same components as those in the above embodiment are denoted by the same reference numerals and description thereof may be omitted.
Fig. 5 is a perspective view of air blower 100a according to modification 1. Fig. 6 is a perspective cross-sectional view of air blower 100a according to modification 1. Fig. 7 is a perspective view of the 1 st case 4a of the 1 st modification. Fig. 8 is a cross-sectional view of blower 100a according to modification 1, as viewed from above. In addition, fig. 5 shows the 2 nd housing 120a in a transparent manner so that the inside thereof can be seen through. Fig. 6 shows a virtual cross-sectional configuration in the case where the air blowing device 100a is cut by a plane along the two-dot chain line C-C of fig. 5 and including the center axis CA. Fig. 8 shows a virtual cross-sectional configuration in the case where the air blowing device 100a is cut by a plane along the two-dot chain line D-D of fig. 1 and perpendicular to the center axis CA.
The blower 100a includes a fan 1 a. In the 1 st modification, the number of the passage portions 43a and the number of the 1 st exhaust ports 12a of the 1 st casing 4a are 1. Therefore, 1 nd exhaust port 102a is provided in the front housing part 121a of the 2 nd housing 120 a.
Next, a modification 2 of the embodiment will be described. The following describes a configuration different from the above embodiment and modification 1. The same components as those in the above embodiment or modification 1 are denoted by the same reference numerals, and description thereof may be omitted.
Fig. 9 is a perspective view of air blower 100b according to modification 2. Fig. 10 is a vertical cross-sectional view of a blower 100b according to modification 2. Fig. 11 is a perspective sectional view showing a turntable mechanism according to modification 2. Fig. 10 shows a virtual cross-sectional configuration in the case where air blower 100b is cut by a plane along two-dot chain line E-E of fig. 9 and including center axis CA. Fig. 11 shows a virtual cross-sectional structure in a case where the turntable mechanism of the modification 2 is cut by a plane including the central axis CA of fig. 9.
The blower 100b includes a fan 1a, a 2 nd casing 120a, a turntable 141, and a turntable drive motor 150. The 2 nd casing 120a houses the fan 1a therein. In the present modification, the fan 1a and the 2 nd casing 120a are the same as the fan 1a and the 2 nd casing 120a of the blower 100a of the 1 st modification. However, the fan 1a and the 2 nd casing 120a may have a different structure from the blower 100 a.
The turntable 141 includes a base 142 and a cylindrical portion 143. The seat portion 142 is a disk-shaped portion that expands in a direction perpendicular to the axial direction. The cylindrical portion 143 is a cylindrical portion extending downward from the outer edge of the pedestal portion 142 in the radial direction. The turntable 141 is disposed below the 2 nd housing 120a and supports the 2 nd housing 120 a. In more detail, the lower housing portion 123 is fixed to the upper surface of the turntable 141. The base portion 142 may have a shape other than a circular plate.
The turntable 141 is provided in the 3 rd housing 140. The 3 rd casing 140 is disposed below the 2 nd casing 120 a. The 3 rd housing 140 has a bottom plate portion extending in a direction perpendicular to the center axis CA, and a cylindrical portion extending upward from a radially outer edge of the bottom plate portion. The turntable 141 is supported by a turntable drive motor 150. The turntable driving motor 150 can drive the turntable 141 to rotate the turntable 141 about a turntable rotation axis CAb extending vertically. Thereby, the 2 nd housing 120a is rotated around the turntable rotation axis CAb, and the direction of the 2 nd exhaust port 102a can be changed to exhaust air in a wider range. Further, by controlling the rotation angle of the turret drive motor 150 so that the 2 nd exhaust port 102a faces a specific direction, the air can be discharged in a preferable direction.
In the present modification, the blower 100b includes the PIR sensor 133. This allows a person located outside air blower 100b to be sensed, and turntable 141 automatically rotates 2 nd casing 120a to orient 2 nd exhaust port 102a in the direction of the person.
In the present modification, the center axis CA is coaxial with the turntable rotation axis CAb. That is, the center axis CA overlaps the turntable rotation axis Cab in a plane perpendicular to the center axis CA. Thus, by bringing the center of the fan 1a as close as possible to the center axis CA and the center of the fan 1a to the turntable rotation axis Cab, the fan 1a can be disposed at the center of the pedestal portion 142, and the load applied to the turntable 141 can be reduced.
The embodiments of the present invention have been described above. In addition, the scope of the present invention is not limited to the above embodiments. The present invention can be implemented by variously changing the above-described embodiments without departing from the scope of the present invention. The matters described in the above embodiments can be arbitrarily combined as appropriate within a range not inconsistent with each other.
The present invention is useful for a fan and an air supply device having a passage portion through which an air supply flow flows.
Claims (13)
1. A fan, comprising:
a motor;
an impeller installed at a lower portion of the motor; and
a 1 st housing that houses the impeller therein,
the motor has:
a rotor rotatable together with the impeller around a central axis extending in a vertical direction; and
a stator radially opposed to the rotor,
the impeller has:
an impeller base fixed to the rotor and extending radially outward from the central axis; and
a plurality of blades arranged on a lower surface of the impeller base and arranged in a circumferential direction,
the 1 st housing has:
a housing base portion attached to the stator;
a casing cover part provided with a 1 st air inlet; and
a passage portion arranged radially outward of the motor and extending in a circumferential direction,
the housing cover portion is disposed below the housing base portion and axially faces the housing base portion,
the impeller is disposed between the casing base portion and the casing cover portion in the axial direction,
the passage portion is connected to a radially outer end portion of the housing base portion and a radially outer end portion of the housing cover portion,
it is characterized in that the preparation method is characterized in that,
the axial width of the passage portion becomes larger as going from one end portion to the other end portion in the circumferential direction of the passage portion, and the upper end of the passage portion is disposed at a position further above,
the other end portion in the circumferential direction of the passage portion is provided with a 1 st exhaust port.
2. The fan as claimed in claim 1,
the axial width of the passage portion at the 1 st exhaust port is larger than the axial width of the motor.
3. The fan as claimed in claim 1,
the passage portion is provided in a plurality of numbers,
the 1 st exhaust ports of the respective passage portions are arranged at equal intervals in the circumferential direction.
4. The fan according to any one of claims 1 to 3,
an upper end of the passage portion at the 1 st exhaust port is disposed above an upper end of the motor.
5. The fan according to any one of claims 1 to 3,
the lower end of the passage portion is disposed above the 1 st air inlet.
6. The fan according to any one of claims 1 to 3,
the radial width of the passage portion is constant in the circumferential direction.
7. The fan according to any one of claims 1 to 3,
the other end of the passage portion extends straight in a direction perpendicular to the axial direction.
8. The fan according to any one of claims 1 to 3,
the fan also has a battery that provides power to the motor,
the battery is disposed radially inward of the passage.
9. The fan as claimed in claim 8,
the upper end of the battery is disposed below the upper end of the passage portion at the 1 st air outlet.
10. An air supply device is characterized in that,
the air supply device comprises:
the fan of any one of claims 1 to 9; and
a 2 nd casing which houses the fan therein,
the 2 nd casing is provided with a 2 nd suction port communicating with the 1 st suction port of the fan and a 2 nd exhaust port communicating with the 1 st exhaust port of the fan.
11. The air supply arrangement of claim 10,
the blower further includes a filter housed in the 2 nd casing,
the 2 nd suction port communicates with the 1 st suction port via the filter.
12. An air supply device is characterized in that,
the air supply device comprises:
the fan of any one of claims 1 to 9;
a 2 nd casing which houses the fan therein;
a turntable which is disposed below the 2 nd housing and supports the 2 nd housing; and
a turntable driving motor capable of driving the turntable so that the turntable rotates about a turntable rotation axis extending up and down.
13. The air supply arrangement of claim 12,
the central axis is coaxial with the turntable axis of rotation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-247769 | 2018-12-28 | ||
| JP2018247769A JP7188076B2 (en) | 2018-12-28 | 2018-12-28 | fan, blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211924568U true CN211924568U (en) | 2020-11-13 |
Family
ID=71448650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922354011.0U Active CN211924568U (en) | 2018-12-28 | 2019-12-24 | Fan and blower |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7188076B2 (en) |
| CN (1) | CN211924568U (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS517A (en) * | 1974-06-19 | 1976-01-05 | Tokyo Shibaura Electric Co | SOFUKI |
| JPS61192253U (en) * | 1985-05-20 | 1986-11-29 | ||
| JP3651515B2 (en) * | 1996-05-14 | 2005-05-25 | 三菱電機株式会社 | Blower |
| JP2000265999A (en) | 1999-03-12 | 2000-09-26 | Aiwa Co Ltd | Blower and air cleaner using it |
| JP5504624B2 (en) | 2008-12-17 | 2014-05-28 | パナソニック株式会社 | Centrifugal blower |
| JP6441402B2 (en) | 2017-03-30 | 2018-12-19 | 株式会社ケーヒン | Centrifugal blower |
-
2018
- 2018-12-28 JP JP2018247769A patent/JP7188076B2/en active Active
-
2019
- 2019-12-24 CN CN201922354011.0U patent/CN211924568U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP7188076B2 (en) | 2022-12-13 |
| JP2020106010A (en) | 2020-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3717778A1 (en) | A fan assembly | |
| US10738788B2 (en) | Blower | |
| US7780423B2 (en) | Blower | |
| CN107196460A (en) | Electric power unit | |
| JP2022023835A (en) | Portable air purifier | |
| CN108700084B (en) | Air supply device and dust collector | |
| CN113983629B (en) | portable air purifier | |
| JP2022094336A (en) | Portable air purifier | |
| WO2017017922A1 (en) | Temperature conditioning unit, temperature conditioning system, and vehicle | |
| TW202206304A (en) | Mixed flow fan module and portable air purifier with mixed flow fan module | |
| CN107615566B (en) | Temperature adjusting unit, temperature adjusting system and vehicle | |
| CN211924568U (en) | Fan and blower | |
| CN107204675A (en) | Electric power unit | |
| KR101836185B1 (en) | Cooling system for battery | |
| CN218379725U (en) | Fan head and cooling fan | |
| CN106152439B (en) | Air supply device and air regulator with the air supply device | |
| CN110099158B (en) | Protective housing and mobile terminal | |
| CN208763949U (en) | A kind of bladeless fan | |
| CN210769443U (en) | Fan and equipment | |
| CN221129783U (en) | Cleaning robot | |
| CN112160926B (en) | Ceiling fan | |
| CN100414169C (en) | Insect-proof and dust-proof device | |
| JPH0519U (en) | Electric mower | |
| KR20120134986A (en) | The hollow ventilator driven by the rotor | |
| KR101836184B1 (en) | Cooling system for battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |