JP2017115630A - Blower module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blower module enabling a user to cause quality of wind to be variable without generating any loss of energy caused by striking air flows to be struck to each other.SOLUTION: In this invention, one row of each of slits 8-like nozzles 9 for blowing out high-pressure air with a specified inward angle forward and to each other is arranged at two ducts 3 arranged side-by-side while having a space therein, respectively, a position of a cubic crossing point 14 between a high pressure gas flow blown out of the nozzles 9 of one duct 3 and a high pressure gas blown out of the nozzles 9 of the other duct 3 is made variable under application of wind quality adjustment means 11, it is possible for a user to make quality of wind [a wind flow speed or size of area receiving wind] variable without producing any loss of energy caused by striking of the air flows.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a blower that gives a refreshing feeling by blowing air or promotes air circulation in a space.

  Conventionally, this type of air blower includes an impeller and a motor in a base serving as a pedestal, and air is circulated so as to blow out horizontally from an annular air blower provided at the top of the base. In addition, a home blower that generates a flow of air is known (for example, see Patent Document 1).

  Hereinafter, the blower will be described with reference to FIGS. 12 and 13.

  FIG. 12 shows the blower assembly 100 as viewed from the front. The blower assembly 100 has an annular nozzle 101 that defines a central opening 102. A motor 122 that creates an air flow through the annular nozzle 101 is disposed within the base 116 along with the motor housing 126. Further, the impeller (impeller) 130 is connected to a rotating shaft extending outward from the motor 122, and the motor 122 in which the diffuser 132 is positioned on the downstream side of the impeller 130 is connected to an electrical connection unit and a power source. A plurality of selection buttons 120 allow the user to operate the blower assembly 100.

  In the above configuration, the blower assembly 100 operates as follows. The user selects from among a plurality of selection buttons 120 and the motor 122 is activated. Thus, air is drawn into the blower assembly 100 through the air inlet 124. In FIG. 13, air flows through the outer casing 118 to the inlet 134 of the impeller 130. The air flow that exits the outlet of the diffuser 132 and the exhaust portion of the impeller 130 is divided into two air flows that travel in opposite directions through the internal passage 110. The air flow is squeezed as it enters the mouth 112 and is further squeezed at the outlet 144 of the mouth 112. This throttling creates pressure in the system. The air flow thus created overcomes the pressure produced by the restriction and the air flow exits through the outlet 144 as the primary air flow. The primary air flow is directed or focused toward the user due to the shape of the guide portion 148. The secondary air flow is generated by the suction of air from the outside environment, particularly from the area around the outlet 144 and around the outer edge of the annular nozzle 101. This secondary air flow passes through the central opening 102 where there is a total air flow that mixes with the primary air flow and is discharged forward from the blower assembly 100.

JP 2010-077969 A

  In such a conventional air blower, the quality of the blown-out air is fixed, and there is a problem that it cannot be changed to the quality of the wind that the user desires from time to time. Here, the term “wind quality” refers to changing the degree of the spot wind and the wide wind enjoyed by the user.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object of the present invention is to provide a blower that allows a user to vary the wind quality.

  The present invention is a blower device including a high-pressure air generation unit that includes an impeller and an electric motor to generate high-pressure air, and two ducts connected to the high-pressure air generation unit. The ducts are arranged in parallel with a distance between the ducts, each having a nozzle provided with a row of slits in front and having a constant inward angle with each other, the nozzles of the one duct and the other duct The air quality adjusting means is arranged such that the nozzles are parallel and alternately arranged, and the position of the three-dimensional intersection between the high pressure airflow blown from the nozzle of the one duct and the high pressure airflow blown from the nozzle of the other duct is variable. Thus, the intended purpose is achieved.

  According to the present invention, the degree of the spot wind and the wide wind is adjusted by changing the position of the three-dimensional intersection by the wind quality adjusting means, and it is possible to provide a blower that can be adjusted by the user according to preference. .

The perspective view which shows the air blower of Embodiment 1 of this invention. 1. A partial enlarged view of FIG. 1 of the air blower of the first embodiment. B partial top view in FIG. 1 of the air blower of the first embodiment. Schematic top view of blown airflow when the distance between the two ducts of the air blower of the first embodiment is changed ((a) a diagram when the distance is large, (b) a diagram when the distance is small) The perspective view which modeled the blowing airflow at the time of changing the distance between two ducts of the air blower of Embodiment 1 ((a) The figure when distance is large, (b) The figure when distance is small) The figure explaining the slit-shaped nozzle in the same Embodiment 1 ((a) Perspective view of a nozzle, (b) Schematic top view of velocity distribution of high-pressure airflow immediately after blowing in a longitudinal section) The comparison figure by the shape of the nozzle in Embodiment 1 ((a) The perspective view which simulated the high pressure air current which blown off from the annular nozzle, (b) Of one duct in the air blower of Embodiment 1 of this invention A perspective view simulating the high-pressure airflow blown from the nozzle) The perspective view which shows the air blower of Embodiment 2 C partial expanded perspective view in FIG. 8 of the air blower of Embodiment 2 C partial enlarged top view in FIG. 8 of the air blower of Embodiment 2 The top view which simulated the flow of the blowing wind at the time of changing the inward angle of two ducts of the air blower of Embodiment 2 ((a) The figure in case an inward angle is small, (b) Inward direction (Figure when angle is large) Perspective view showing an example of the prior art Sectional drawing which shows an example of a prior art

  The blower according to claim 1 of the present invention includes a high-pressure air generator that includes an impeller and an electric motor to generate high-pressure air, and two ducts connected to the high-pressure air generator. The two ducts are arranged in parallel with a distance between the ducts, each having a nozzle with a row of slits that are forward and have a fixed inward angle with respect to each other. The nozzle of one duct and the nozzle of the other duct are arranged in parallel and alternately, and a three-dimensional intersection of the high-pressure airflow blown from the nozzle of the one duct and the high-pressure airflow blown from the nozzle of the other duct Is provided with a wind quality adjusting means for changing the position of the air.

  Accordingly, the degree of the spot wind and the wide wind is adjusted by changing the position of the three-dimensional intersection by the wind quality adjusting means, and the user can adjust according to his / her preference.

  That is, when the three-dimensional intersection is located far from the blower, the high-pressure air currents blown from the nozzles of the two ducts are affected by the high-speed air currents blown from the other nozzle around the three-dimensional intersection. It is deflected in the center direction. Therefore, both airflows gather and flow toward the same direction. As a result, the user enjoys a spot wind having a large flow velocity and a small wind receiving area. On the other hand, when the three-dimensional intersection is located near the blower, the high-pressure airflow blown out from the nozzles of the two ducts is the outer periphery of the high-pressure airflow due to the boundary layer generated on the inner wall of the nozzles. Since the flow velocity of the nozzle is low, it is difficult to be deflected around the three-dimensional intersection and flows in the nozzle blowing direction as it is. And attraction | suction airflow generate | occur | produces with each high pressure airflow. As a result, the user enjoys wide wind with a small flow velocity and a large wind receiving area.

  Moreover, the air blower concerning Claim 2 is provided with the air quality adjustment means which varies the distance between two ducts.

  Thereby, when the distance between two ducts is large, a three-dimensional intersection will be formed in the distance of an air blower. As described above, this allows the user to enjoy a spot wind with a large flow velocity and a small wind receiving area. Furthermore, since the expansion of the distance between the two ducts expands the flow path of the induced airflow generated by the high-pressure airflow, it is possible to increase the flow rate of the induced flow. As a result, the flow rate can be further improved.

  On the other hand, when the distance between the two ducts is small, the three-dimensional intersection is formed near the blower. Therefore, as described above, the user enjoys wide wind having a small flow velocity and a large wind receiving area.

  As a result, the degree of the spot wind and the wide wind is adjusted by changing the position of the three-dimensional intersection by the wind quality adjusting means, which can be adjusted according to the user's preference.

  Further, the blower according to claim 3 is provided with air quality adjusting means for varying the inward angle of the two ducts.

  Accordingly, the degree of the spot wind and the wide wind is adjusted by changing the position of the three-dimensional intersection by the wind quality adjusting means, and the user can adjust according to his / her preference.

  That is, when the inward angle of the two ducts is small, the three-dimensional intersection is formed far from the blower. As described above, this allows the user to enjoy a spot wind with a large flow velocity and a small wind receiving area. On the other hand, when the inward angle of the two ducts is large, the three-dimensional intersection is formed near the blower. Therefore, as described above, the user enjoys wide wind having a small flow velocity and a large wind receiving area.

  Furthermore, since the operating range of the two ducts is suppressed in the direction orthogonal to the center line of the two ducts, it is possible to contribute to the downsizing of the blower.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention. In addition, the following embodiment is an example which actualized this invention, Comprising: The thing of the character which limits the technical scope of this invention is not. Moreover, in order to avoid duplication, the same code | symbol is attached | subjected about the same site | part through all drawings, and the description after the 2nd is abbreviate | omitted.

(Embodiment 1)
Hereinafter, the configuration of the first embodiment of the present invention will be described in detail with reference to FIGS.

  1 is a perspective view of the blower, FIG. 2 is an enlarged view of part A of the blower in FIG. 1, and FIG. 3 is an enlarged view of part B of the blower in FIG. However, in FIG. 3, a high-pressure air generation unit 2 and a connection path 4 described later are omitted.

  As shown in FIG. 1, the blower 1 includes a box-shaped high-pressure air generating unit 2, two ducts 3, and a box-shaped connection path 4 connecting the high-pressure air generating unit 2 and the two ducts 3. Has been. The high-pressure air generating unit 2 includes a box-shaped connection path 4 that connects two ducts 3. Each of the two ducts 3 has one end connected to the connection path 4.

  The high-pressure air generator 2 includes a suction port 5, an impeller 6, an electric motor 7, and a casing 31 that encloses the impeller 6 and the electric motor 7. The suction port 5 is formed in a rectangular shape on one side surface of the high-pressure air generator 2, and the impeller 6 is connected to the rotating shaft of the electric motor 7 inside the high-pressure air generator 2.

  The two ducts 3 are arranged through one side surface of the connection path 4 in parallel and symmetrically with a distance between the ducts. As an example, as shown in FIG. 1, the connection path 4 is arranged on the top surface of the high-pressure air generator 2, and the two ducts 3 extend upward from the top surface, which is one side surface of the connection path 4. Yes.

  Also, as shown in FIGS. 2 and 3, the two ducts 3 each have a slit 8 (a width in the short side direction is 3.5 mm, which blows a high-pressure air flow forward and at a constant inward angle with each other). The nozzles 9 having a total number of 5) are arranged in a row at a predetermined interval. The predetermined interval is an interval corresponding to the length of the nozzle 17 of the other duct. The longitudinal direction of the slit 8 is perpendicular to the installation surface 30 of the blower 1.

  In the two ducts 3, the nozzles 15 of one duct and the nozzles 17 of the other duct are arranged in parallel and alternately with each other.

  As shown in FIG. 3, inside the connection path 4, the duct 3 includes air quality adjusting means 11 that adjusts the air quality of the blower. The air quality adjusting means 11 includes a sub-motor 41, a rotating gear 42, a rod-shaped gear 43, and an air leakage prevention plate 44 that partially overlaps the upper surface of the connection path 4 from the inside. The rotating gear 42 is connected to a sub-motor 41 fixed at a predetermined position, and the rod-shaped gear 43 extends from the duct 3 while being positioned so as to mesh with the rotating gear 42. Further, the duct 3 is fitted and connected to an air leakage prevention plate 44.

  Here, the operation principle of the air quality adjusting means 11 for changing the distance between the two ducts will be described.

  In FIG. 3, when the power is drawn from the outside of the blower 1 and electricity is supplied to the sub-motor 41, the sub-motor 41 moves and rotates the rotating gear 42 on the rod-shaped gear 43. As a result, the rod-shaped gear 43 moves on a straight line in a direction away from the other duct 3, and accordingly, the duct 3 positioned at the extension source of the rod-shaped gear 43 also moves on the straight line in a direction away from the other duct 3. Moving. For example, as shown in FIG. 3, when the rotating gear 42 is rotated in the counterclockwise direction 51 by the auxiliary motor 41, the rod-shaped gear 43 and the duct 3 move in a straight line in the direction 52 away from the other duct. Thus, the distance 45 between the ducts formed by one duct 3 and the other duct 3 is increased.

  On the other hand, when the rotating gear 42 is rotated in the clockwise direction 53 by the auxiliary electric motor 41, the rod-shaped gear 43 and the duct 3 operate in a straight line in the direction 54 approaching the other duct 3 to each other. The distance 45 becomes smaller.

  Since the air leakage prevention plate 44 is always a partition between the inside of the connection path 4 and the outside air regardless of the position of the duct 3, it is possible to suppress air leakage from the inside of the connection path 4 to the outside air. Therefore, it is possible to suppress a decrease in the blowing performance of the blower 1.

  In the above configuration, the operation of the blower 1 will be described in detail.

  First, when a power source (not shown) is drawn from the outside of the blower 1 and electricity is supplied to the electric motor 7, the electric motor 7 is operated to rotate the impeller 6. Thereby, the air taken in from the suction port 5 is compressed to generate high-pressure air. Then, the high-pressure air generated by the high-pressure air generating unit 2 flows through the two ducts 3 through the connection path 4 and blows out from the nozzle 9. The nozzles 15 of one duct and the nozzles 17 of the other duct are alternately arranged so that the high-pressure airflow blown from the nozzles 9 of the two ducts 3 is at the center line between the two ducts 3. A three-dimensional intersection will occur at a solid intersection 14 on a certain central axis 20. By changing the distance of the three-dimensional intersection 14 from the blower 1, the degree of deflection of the high-pressure air flow from each nozzle 9 changes, and the quality of the wind also changes.

  Now, the degree of this deflection, that is, the quality of the wind, can be changed by the distance between the two ducts.

  Here, regarding each of the cases where the distance 45 between the ducts is small and large, the distance from the blower 1 and the air quality of the three-dimensional intersection 14 will be described below.

  In general, in a situation where the first airflow is flowing at a constant flow velocity, a second airflow is generated in which ambient air is attracted to the first airflow. The second airflow has a velocity direction component equivalent to that of the first airflow at the same time as the flow velocity becomes higher as it approaches the first airflow.

  This phenomenon is a phenomenon that can be seen regardless of whether there is a flow velocity of the ambient air to be attracted. For example, when the ambient air to be attracted has a flow velocity and is already flowing as the second airflow, both the airflow by the nozzle 15 of one duct and the airflow by the nozzle 17 of the other duct are mutually the velocity of the other airflow. It has a directional component.

  The change in the degree of deflection of the high-pressure airflow due to the difference in the degree of this phenomenon occurring around the three-dimensional intersection 14 causes a change in the wind quality.

  4 and 5 are a plan view and a perspective view, respectively, simulating the flow of blown air from the blower device 1 according to the first embodiment of the present invention when the distance between the two ducts is large and small. However, FIGS. 4 and 5 show only a simplified diagram of the nozzles of the two ducts. FIG. 6 is a schematic diagram of the velocity distribution of a high-pressure airflow immediately after blowing a general nozzle, and FIG. 7 is a high-pressure blown from an annular nozzle and the nozzle of one duct in the blower of Embodiment 1 of the present invention. It is a comparative perspective view which simulated airflow.

  First, the case where the distance between the two ducts 3 is large by the aforementioned air quality adjusting means 11 will be described. At this time, the distance from the blower 1 becomes large at the solid intersection 14. As shown in FIGS. 4 (a) and 5 (a), around the three-dimensional intersection 14, one high-pressure airflow 16 blown from the nozzle 15 of one duct was blown from the nozzle 17 of the other duct. The speed direction component of the other high-pressure airflow 18 is taken into account. Similarly, the speed direction component of one high-pressure air flow 16 is added to the other high-pressure air flow 18.

  As a result, both high-pressure airflows are deflected toward the center of the high-pressure airflow before deflection of both. That is, the deflected high-pressure airflow flows in the direction of the central axis 20 of the blower 1.

  As a result, the high-pressure airflow blown from the nozzle having a constant inward angle flows as a spot wind having a large flow velocity and a small wind receiving area before and after deflection.

  In addition, the flow rate of the upstream-induced airflow 46 that is attracted to the upstream side of the three-dimensional intersection shown in FIG. 4A that flows through the space expanded by the expansion of the distance between the two ducts 3 induced by the high-pressure airflow increases Therefore, further improvement of the flow rate can be expected.

  Next, the case where the distance between the two ducts 3 is small by the aforementioned air quality adjusting means 11 will be described. At this time, the distance from the blower 1 is small at the three-dimensional intersection 14. As in the case where the distance between the two ducts 3 is large, as shown in FIGS. 4B and 5B, one high pressure blown from the nozzle 15 of one duct around the three-dimensional intersection 14. The air flow 16 and the other high-pressure air flow 18 blown from the nozzle 17 of the other duct intersect.

  FIG. 6 is a diagram illustrating a slit-type nozzle of a general nozzle.

  As shown in FIG. 6A, when the air flow 91 is blown out from the general nozzle 71, as shown in FIG. Due to the influence of the boundary layer 73 generated by the inner wall 72 of the nozzle, the flow velocity at the outer peripheral portion is reduced.

  Therefore, in the vicinity of the three-dimensional intersection 14, the air currents are in contact with each other at a portion where the flow velocity is small, and the main flows having a large flow velocity are not in contact with each other. That is, the deflection of the airflow at a small flow velocity occurs, but the deflection of the main flow at a large flow velocity does not occur. As a result, the one high-pressure air flow 16 and the other high-pressure air flow 18 blown from the nozzle 15 of one duct and the nozzle 17 of the other duct flow as they are in the nozzle blowing direction. And the downstream area induced airflow 47 attracted | provided downstream from the solid intersection shown in FIG. 4 by each high pressure airflow generate | occur | produces. As a result, the user enjoys wide wind with a small flow velocity and a large wind receiving area.

  Further, the flow rate of the downstream-induced airflow 47 increases in proportion to the area where the high-pressure airflow contacts the outside air together with the flow velocity of the high-pressure airflow.

  Similar to the property of airflow described above, airflows have a property of flowing together. For example, as shown in FIG. 7A, the high-pressure air current blown from the annular nozzle 76 gathers and flows on the center axis 77 of the ring.

  However, as shown in FIG. 7B, each of the five high-pressure airflows blown out from the duct 3 in this structure flows at the same interval and the same flow velocity, and each high-pressure airflow extends the duct in the downstream area. It is difficult to gather in the direction you set. As a result, the area where the high-pressure airflow is in contact with the outside air increases, and the flow rate of the downstream-induced airflow 47 increases, so an improvement in the flow rate can be expected.

  As described above, by adjusting the distance between the two ducts 3 by the air quality adjusting means 11, the flow rate can be varied from a spot wind having a large flow velocity and a small wind receiving area to a wide wind having a small flow velocity and a large wind receiving area. Can do.

  Further, when changing the air quality, energy loss due to collision between airflows does not occur, so that the flow velocity and flow rate are not reduced.

  In the present embodiment, the high-pressure air generator 2 and the connection path 4 are formed in a box, but the shape is not particularly limited.

  Moreover, in this Embodiment, although the suction inlet 5 is formed in the rectangular shape, if it can fully inhale air, there will be no restriction | limiting in particular in a shape.

  In the present embodiment, the width in the short direction of the slit 8 of the nozzle 9 is set to 3.5 mm, but there is no particular limitation. However, although depending on the width in the longitudinal direction of the slit 8 of the nozzle 9 and the blowing performance of the high-pressure air generator 2, the user should set it to about 20 mm or less in order to enjoy the airflow having a constant flow velocity. Is desirable.

  Moreover, in this Embodiment, although the slit provided in each of the two ducts 3 is set to five, there is no restriction | limiting in particular. However, as described above, as the number of slits, that is, the number of high-pressure airflows is increased, the high-pressure airflows are less likely to gather in the downstream region, and an improvement in the flow rate can be expected.

  In the present embodiment, the longitudinal direction of the slit 8 of the nozzle 9 is configured to be perpendicular to the installation surface 30 of the blower 1, but the longitudinal direction of the slit 8 is the installation surface 30 of the blower 1. It may be configured to be parallel to. Note that the slit 8 may be configured to be inclined at a certain angle with respect to the installation surface 30.

(Embodiment 2)
In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  Hereinafter, the configuration of the second embodiment of the present invention will be described in detail with reference to FIGS. 8 and 10.

  8 is a perspective view of the blower, FIG. 9 is an enlarged perspective view of part C of the blower in FIG. 8, and FIG. 10 is an enlarged top view of part C of the blower in FIG. However, in FIG. 9 and FIG. 10, the high-pressure air generator 2 and the connection path 4 are omitted.

  As shown in FIG. 9 and FIG. 10, the duct 3 is provided with air quality adjusting means 11 for adjusting the air quality of the blower inside the connection path 4. The duct 3 has a cylindrical shape at least inside the connection path 4. The air quality adjusting means 11 includes an auxiliary electric motor 81, a rotating gear 82, and a duct circumferential gear 83. The rotating gear 82 is connected to a sub-motor 81 fixed at a predetermined position, and the duct circumferential gear 83 is laid on the outer periphery of the duct 3 while being positioned so as to mesh with the rotating gear 82.

  As in the first embodiment, the degree of deflection, that is, the wind quality, varies depending on the distance from the blower 1 of the three-dimensional intersection 14 set by the wind quality adjusting means 11. This distance can also be changed by the inward angle of the two ducts.

  First, the operation principle of the air quality adjusting means 11 for changing the inward angle of the two ducts will be described.

  9 and 10, when a power source (not shown) is drawn from the outside of the blower 1 and electricity is supplied to the sub-motor 81, the sub-motor 81 is operated to connect the rotary gear 82 to the duct circumferential gear. Rotate on 83. As a result, the duct circumferential gear 83 rotates and accordingly the duct 3 which is the laying source of the duct circumferential gear 83 also rotates in the same manner.

  For example, as shown in FIG. 10, when the rotating gear 82 is rotated clockwise 84 toward the drawing by the auxiliary motor 81, the duct circumferential gear 83 and the duct 3 are rotated clockwise 85 toward the drawing. The inward angle 90 formed by the blowing shaft 88 of the nozzle 9 of the duct 3 and the central shaft 20 can be reduced.

  On the other hand, when the rotating gear 82 is rotated counterclockwise 84 toward the drawing by the auxiliary electric motor 81, the duct circumferential gear 83 and the duct 3 are rotated clockwise 85 toward the drawing, whereby the duct 3 The inward angle 90 can be increased.

  In the above configuration, for each of the cases where the inward angle 90 is small and large, the distance from the blower at the three-dimensional intersection and the quality of the wind will be described below. FIG. 11 is a plan view simulating the flow of blown air from the blower according to Embodiment 2 of the present invention when the inward angle 90 is small and large. However, FIG. 11 shows only a simplified diagram of the nozzles 9 of the two ducts 3.

  First, the case where the inward angle 90 of the two ducts 3 is small will be described. At this time, the distance from the blower 1 becomes large at the solid intersection 14.

  As in the first embodiment, the one high-pressure air flow 16 takes into account the velocity direction component of the other high-pressure air flow 18 at the same rate as the velocity direction component before deflection. Similarly, the other high-pressure air flow 18 takes into account the velocity direction component of one high-pressure air flow 16 at a rate similar to that of the velocity direction component before deflection.

  As a result, as shown in FIG. 11A, both high-pressure airflows are deflected toward the center of the high-pressure airflow before the deflection of both. That is, the deflected high-pressure airflow flows in the direction of the central axis 20 of the blower 1.

  As a result, the high-pressure airflow blown out from the nozzle having a constant inward angle 90 flows as a spot wind having a large flow velocity and a small wind receiving area before and after deflection.

  Next, a case where the inward angle 90 of the two ducts 3 is large will be described. At this time, the distance from the blower 1 is small at the three-dimensional intersection 14.

  As described above, as shown in FIG. 11B, the high-pressure airflow blown from the nozzle flows as it is in the nozzle blowing direction. And a downstream area induced airflow generate | occur | produces with each high pressure airflow.

  As a result, the user enjoys wide wind with a small flow velocity and a large wind receiving area.

  As described above, by adjusting the inward angle 90 of the two ducts 3 by the air quality adjusting means 11, it is possible to change from a spot wind having a large flow velocity and a small wind receiving area to a wide wind having a small flow velocity and a large wind receiving area. can do.

  The blower according to the present invention is useful as a blower that allows the user to vary the quality of the wind without causing loss of energy due to the collision between the airflows.

DESCRIPTION OF SYMBOLS 1 Blower 2 High pressure air generating part 3 Duct 4 Connection path 5 Suction port 6 Impeller 7 Electric motor 8 Slit 9 Nozzle 11 Air quality control means 14 Three-dimensional intersection 15 Nozzle of one duct 16 Nozzle of one high pressure 17 Nozzle of the other duct 18 Other high-pressure airflow 20 Central shaft 30 Installation surface 41 Sub motor 42 Rotating gear 43 Rod-shaped gear 44 Air leakage prevention plate 45 Distance between ducts 46 Upstream area induced airflow 47 Downstream area induced airflow 71 General nozzle 72 General nozzle inner wall 73 Boundary Layer 74 Both ends 76 Annular nozzle 77 Center axis of ring 81 Sub motor 82 Rotating gear 83 Duct circumferential gear 84 Counterclockwise 85 Clockwise 86 Clockwise 87 Counterclockwise 88 Blowing shaft 90 Inward angle 91 Airflow 92 General nozzle tip Part 100 Blower assembly 101 Annular nozzle 102 Central opening 11 0 internal passage 112 port 116 base 118 outer casing 120 selection button 122 motor 124 air inlet 126 motor housing 130 impeller 132 diffuser 134 inlet 144 outlet 148 guide portion

Claims (3)

A high-pressure air generation unit that generates high-pressure air with an impeller and an electric motor inside,
A blower device including two ducts connected to the high-pressure air generation unit,
The two ducts have nozzles arranged in parallel with a distance between the ducts, each having a row of slits that are forward and have a constant inward angle with respect to each other, and one of the nozzles The nozzle of the other duct and the nozzle of the other duct are arranged in parallel and alternately, and the position of the three-dimensional intersection between the high-pressure airflow blown from the nozzle of the one duct and the high-pressure airflow blown from the nozzle of the other duct is variable The air blower provided with the air quality adjusting means. The air blower according to claim 1, which is air quality adjusting means for varying a distance between the two ducts. The air blower according to claim 1, which is air quality adjusting means for varying the inward angle of the two ducts.