JP6311118B2 - Blower case and blower provided with the same - Google Patents

Description

  The present invention relates to a blower casing and a blower including the casing, and more specifically, includes a blower casing that provides a refreshing feeling by blowing air and promotes air circulation in a space, and the casing. The present invention relates to a blower.

  2. Description of the Related Art Conventionally, there has been known a blower device that realizes a compact body while eliminating anxiety about contact with the impeller by including the impeller (see, for example, Patent Document 1).

  In the blower, the air blown out from the air outlet (annular nozzle) provided in the collar portion of the circular opening of the main body having a spherical shape, and the vicinity of the center of the circular opening (attracted air outlet) induced by the air ) It is said that it is possible to efficiently generate an air current with less wind speed attenuation by attracting air that blows out more.

JP 2013-224650 A

  In such a conventional air blower, in order to efficiently generate an airflow from the air outlet, it is necessary to improve airtightness of the air passage to prevent air leakage. However, since the air blower has a drive part (an impeller, a motor, etc.), there existed a subject that a looseness and a shift | offset | difference arise in each location by the vibration.

  Then, this invention solves the said subject, and it aims at providing the housing | casing for air blowers which can improve the airtightness of an air path, and an air blower provided with the same.

In order to achieve the above-described object, a blower casing and a blower according to the present invention include one pole, an opening provided to include the one pole, and an induced air suction port for sucking the induced air. A main body of a substantially spherical body comprising a first frame, a second frame provided with an air suction port for sucking air and the other pole opposed to the one pole, and provided in the internal space of the main body, the attraction A first air passage member that communicates the air suction port and the opening portion inside the wall surface and that communicates the air suction port and the opening portion by an air passage constituted by the outside of the wall surface and the inner surface of the first frame; An arrangement space provided in the internal space of the main body and arranged to communicate with the air passage and to arrange the high-pressure air generator is formed between the first air passage member, the arrangement space and the air suction A second air passage member communicating with the mouth, And said first air passage member and the first frame, respectively to篏合as to form the opening and the attraction air inlet, said first frame and said second air passage member screwed, The second frame and the second air path member are screwed together to press-contact the cut surface of the first frame and the cut surface of the second frame , thereby achieving the intended purpose. Is.

According to the air blower casing and the air blower according to the present invention, the first frame and the second air passage member are screwed together, and the second frame and the second air passage member are screwed together, so that the first The airtightness of the air passage can be improved by bringing the frame and the second frame into contact with each other with the circular cut surfaces being matched.

External view of the air blower according to Embodiment 1 of the present invention The exploded side view of the air blower concerning Embodiment 1 of the present invention. Sectional drawing of the air blower which concerns on Embodiment 1 of this invention. The top view which looked at the 1st frame and the 1st air passage member from the ventilation side pole Detailed explanatory drawing of the first air passage member (A) The figure which looked at the 1st frame from the center direction of a sphere, (b) Correspondence figure of the 1st frame and the 1st air way member (A) The figure which looked at the 2nd air way member from the ball center direction, (b) The figure which looked at the 2nd air way member from the suction side pole direction Arrangement explanatory drawing at the time of engagement between the hemisphere of the ventilation side pole and the second air passage member (A) Figure before screwing, (b) Figure after screwing Detailed explanatory diagram of the second frame (A) Locking explanatory drawing of the substantially spherical body A and the second frame, (b) Latching relationship diagram between the second protrusion and the second locking portion.

  A housing for a blower device according to the present invention has a first frame including one pole, an opening provided to include the one pole, and an attracting air suction port for sucking inductive air, and is opposed to the one pole. A substantially spherical main body comprising a second frame provided with the other pole and an air suction port for sucking air, and provided in an internal space of the main body, wherein the attraction air suction port and the opening are disposed inside the wall surface. A first air passage member that communicates with the air passage configured by the outside of the wall surface and the inner surface of the first frame, and the air passage is provided in the internal space of the main body; An arrangement space for arranging the high-pressure air generating device in communication with the first air passage member, and a second air passage member communicating the arrangement space and the air suction port. The first frame and the second frame The first frame is turned into contact with the first frame by rotating the one frame in the circumferential direction and screwing the frames together. Crimped.

  Thereby, the airtightness of an air path can be improved.

  Further, when the high-pressure air generator is configured to be fixed to the first air passage member, the screwing by the rotation in the circumferential direction is relative to the rotation direction of the blades constituting the high-pressure air generator. The second air passage member and the second frame are rotated in the opposite directions.

  As a result, the force applied to the first frame, the first air passage member, and the second air passage member due to the rotation of the blades is in the direction in which the pressure due to the screwing increases, so that even in long-term use, each part is loosened That is, it is possible to prevent a decrease in airtightness.

  Further, when the air blower is further embodied, the first frame is hollow and substantially hemispherical, including one pole where the central axis of the sphere is in contact, perpendicular to the central axis and the one pole. The circular opening provided in the vicinity, a plurality of air inlets provided at equal intervals in the circumferential direction of the central axis with the one pole as a center, and a cut surface facing the circular opening A plurality of first protrusions projecting toward the central axis on the inner periphery of the first frame, and the second frame includes a second pole that is in contact with the first pole and is in contact with the central axis. A first engaging portion having a substantially hemispherical shape, having a circular shape centered on the central axis, and contacting the second air passage member in contact with the circular shape, and a cut facing the other pole A plurality of second protrusions protruding toward the central axis on the inner periphery of the surface, wherein the first air passage member includes the plurality of An inner wall portion of the attraction passage that communicates with the attraction air suction port; an inner surface of the wall surface that includes an attraction air mixing portion that mixes air that has been attracted from the attraction air suction port through the inner wall portion of the attraction passage; A plurality of circular induction air outlets that are provided on a common and substantially the same center and that discharge the mixed air, and a plurality of protrusions projecting in the other pole direction on the outside of the wall surfaces of the plurality of induction passage inner walls. A plurality of abutting portions that abut each of the plurality of supporting portions; a first guide portion that guides the first projecting portion in a direction parallel to the central axis; A first locking portion for preventing movement of the first protrusion in the one polar direction during the screwing; a second guide portion for guiding the second protrusion in a direction parallel to the central axis; and the screw. Prevents the second protrusion from moving in the other pole direction at the time of Can be a secondary locking portion, a blowing device and a second engaging portion that engages the threadably said first engaging portion.

  Thereby, the airtightness of an air path can be improved.

  Further, at least one of the first protrusion, the first locking part, the second protrusion, and the second locking part presses and presses the two poles toward the center of the sphere during the screwing. You may make it have a press-contact structure.

  Thereby, since the 2nd frame press-fits the 1st air way member to the 1st frame via the 2nd air way member, the airtightness of an air way can be improved.

  The support portion and the contact portion are press-contacted to press-contact the first air path member in the first frame direction and the second air path member in the second frame direction, respectively, during the screwing. It is good also as a structure.

  As a result, the airtightness of the airflow path constituted by the first airway member and the first frame can be improved, and at the same time, the airtightness of the induced airflow path from the air inlet to the air inlet is also improved. It is possible to prevent the mutual airflows from interfering with each other. Similarly, the confidentiality of the air passage that communicates the second air passage member and the second frame can also be improved.

  In addition, you may make it the structure which has arrange | positioned the high pressure air generator in the said space for arrangement | positioning of the housing | casing for air blowers. In this case, it is useful as a blower.

(Embodiment 1)
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, the same number is attached | subjected about the same site | part through all the drawings. Furthermore, in each drawing, the description of the details of each part not directly related to the present invention is omitted.

  Hereinafter, the blower casing and blower according to Embodiment 1 of the present invention will be described.

  FIG. 1 is an external view of an air blower according to Embodiment 1 of the present invention. As shown in FIG. 1, the air blower 1 has a substantially spherical shape, and has a central axis 2 penetrating through the center of the spherical body as an axial center. The central axis 2 is in point contact with a spherical air blowing side pole 3 (corresponding to one pole) and a suction side pole 4 (corresponding to the other pole) facing the air blowing side pole 3. In addition, the substantially spherical shape here means that a sphere is formed at a glance, and is an expression that takes into consideration that a part of the surface of the sphere does not become a true sphere due to unevenness on the surface of the sphere due to an opening or the like described later. That is, even if it does not become a true sphere, it is included in a substantially spherical shape when it forms a sphere at first glance.

  In addition, the blower 1 includes a substantially hemispherical first frame 6 with a cut surface 5 perpendicular to the central axis 2 at a position equidistant from the spherical poles (the blower side pole 3 and the suction side pole 4). The second frame 7 is also divided into two equal parts.

  The first frame 6 includes the blower-side electrode 3 and has a hollow shape, that is, a hemispherical structure. The first frame 6 is provided with a circular opening 9 formed in a plane perpendicular to the central axis 2 in the vicinity of the blower side pole 3. Note that the term “neighborhood” as used herein is an expression based on the fact that the blower side pole 3 is on the circumference of the sphere and therefore does not coincide with the plane to which the opening 9 belongs. Therefore, the expression that the opening 9 includes the blower-side electrode 3 can be used. Furthermore, the first frame 6 includes a plurality of (six in the first embodiment) induction air inlets 8 provided at equal intervals in the circumferential direction of the central shaft 2 with the blower-side electrode 3 as the center.

  The attraction air suction port 8 has a circular shape with the same diameter, and the center of each circle is located on the same circumference around the central axis 2 (on the same cross section perpendicular to the central axis 2). However, it is not in contact with the adjacent attraction air inlet 8, that is, independent of each other, thereby securing a plurality of air passages to be described later in the internal space.

  The opening 9 includes an induced air blowout port 10 communicating with the induced air suction port 8 in the interior thereof, which will be described in detail later.

  The second frame 7 includes the suction side pole 4 and has a hollow shape, that is, a hemispherical structure. The second frame 7 includes an air suction port described later around the suction side electrode 4.

  FIG. 2 is an exploded side view of the air blower according to Embodiment 1 of the present invention. As shown in FIG. 2, the blower 1 includes a first air passage member 204, an arrangement space in a hollow space (inside) of a substantially spherical main body composed of the first frame 6 and the second frame 7. 216 and the second air passage member 212 are arranged in this order from the first frame 6, and this configuration constitutes a blower casing. Further, by providing the high-pressure air generator 211 in the arrangement space 216, it functions as a blower.

  The first air passage member 204 is a lower portion that forms a hollow internal space between the upper member 202 having the induced air outlet 10 having a circular cross section perpendicular to the central axis 2 and the upper member 202. It is formed with the member 203. In addition, a plurality of support portions 213 (six in the first embodiment) project from the outer wall surface of the lower member 203 in parallel with the central axis 2 toward the suction side pole 4. Here, the term “projection” means that the projection is provided in a protruding state.

  The second air passage member 212 is provided with a plurality of contact portions 214 (the same number as the support portions, six in the present embodiment) corresponding to the plurality of support portions 213. Further, the abutting portion 214 is provided so as to protrude in parallel with the central axis 2 toward the air blowing side pole 3 of the second air passage member 212. An arrangement space 216 is formed between the first air passage member 204 and the second air passage member 212 by the front end portion of the support portion 213 and the front end portion of the contact portion 214 coming into contact with each other. The term “contact” as used herein refers to contact in a contact state. Further, the second air passage member 212 has a cylindrical engagement portion 215 centered on the central axis 2 in parallel with the central axis 2 toward the suction side pole 4 (the second engagement portion in the claims). Corresponded to).

  In the second frame 7, air suction ports 201 are provided as a number of punching holes in the vicinity of the suction side electrode 4. External air is sucked into the substantially spherical main body through the air suction port 201, and details of the mechanism will be described later.

  The high pressure air generator 211 includes a motor 206, a base cover 207, a base 208, a motor cover 209, and blades 210. The high-pressure air generator 211 is fixed to the first air passage member 204 and fixed to the fixing portion 205 made of an elastic body made of rubber. The air channel member 204 is fixed to the outer wall side.

  Then, the flow of the air in the air blower 1 is demonstrated using FIG.3 and FIG.4. 3 is configured by arranging the first frame 6, the first air passage member 204, the high-pressure air generator 211, the second air passage member 212, and the second frame 7 shown in FIG. 2 in this order. It is sectional drawing at the time of cut | disconnecting the air blower 1 by the plane containing the central axis 2. FIG. FIG. 4 is a top view of the first frame 6 and the first air path member 204 as viewed from the air blowing side pole 3 side. The structure of each member and the details of the attachment procedure will be described later separately.

  In FIG. 3, a motor 206 is disposed in the vicinity of the center 301 of a sphere that is equidistant from the blowing side electrode 3 and the suction side electrode 4, and the blades connected to the motor 206 by rotating the motor 206. 210 rotates around the central axis 2. The power source of the motor 206 corresponds to electricity supplied from a lead wire (not shown) drawn from the outside of the main body, electricity obtained from a built-in battery, or the like.

  When the blades 210 rotate, air from the outside of the main body is sucked from the air suction port 201 (see the air blowing path 303). The sucked air passes through the opening on the air suction port 201 side (the air suction port side opening 302) of the second air passage member 212 having a function as an orifice, and the inside of the blade 210 in the arrangement space 216 It flows into (central part). The air that has flowed in is discharged from the central axis 2 in the direction of the outer periphery based on the air blowing structure of the blades 210, that is, pushed out in the outer circumferential direction of the arrangement space 216 that also functions as the air blowing path.

  The air pushed outward in the circumferential direction of the arrangement space 216 passes through the air passage 304 formed by the outer wall (outside of the wall surface) of the first air passage member 204 and the inner wall of the first frame 6 by the pressing. Then, it is guided to the opening 9. Here, as shown in FIG. 4, the opening 9 has a circular shape centered on the air blowing side pole 3, and the induced air outlet 10 provided in the first air passage member 204 and the center thereof. It is configured identically. Moreover, the plane which comprises the attraction air blower outlet 10 and the plane which comprises the opening part 9 comprise the substantially same plane. Here, “substantially the same plane” means that the plane that forms the opening 9 is an error of, for example, several millimeters from the center 301 of the sphere compared to the plane that forms the induced air outlet 10, and is far away or close. Is included. The diameter of the opening 9 is designed to be larger than the diameter of the induced air outlet 10, and the space between the opening 9 and the outer wall of the induced air outlet 10 is a circle that communicates with the air passage 304. An annular air outlet 401 is configured. As a result, the air sucked from the air suction port 201 is blown out as an annular air flow in the direction parallel to the central axis 2 and away from the center 301 by the action of the blades 210.

  The annular airflow blown out from the air outlet 401 attracts the air inside the annular, that is, the air in the vicinity of the attractive air outlet 10 in the same direction due to the attraction effect. At this time, air is attracted from a plurality of attraction air inlets 8 communicating with the attraction air outlet 10 (see the air flow path 306), mixed in the attraction air mixing unit 305, and sequentially sent to the attraction air outlet 10. .

  The annular airflow and the induced air described above are combined in the vicinity of the opening 9 and are discharged from the direction of the central axis 2 as a spot wind with little divergence.

  The above is the outline of the configuration and operation of the blower device 1 according to the first embodiment.

  Subsequently, the detailed structure of the first air passage member 204 according to the first embodiment will be described with reference to FIG. FIG. 5 is a detailed explanatory view of the first air passage member according to the first embodiment.

  As described above, the first air passage member 204 includes the upper member 202 and the lower member 203, and includes the induced air mixing unit 305 indicated by a broken line between the two members. Further, the first air passage member 204 includes a plurality of induction passage inner wall portions 501 (six in the first embodiment) having a center on the circumference around the central axis 2. The attraction air mixing unit 305 communicates with the attraction air suction port 8 provided in the first frame 6 through an attraction passage inner wall portion 501 constituted by an annular inner surface. Further, the attraction air mixing unit 305 communicates with the attraction air outlet 10.

  Subsequently, the details of the first frame 6 and the first air passage member 204 according to the first embodiment will be described with reference to FIGS. 6A and 6B, and the first frame and the first air passage member are also described. The locking procedure will also be described. FIG. 6 is a detailed explanatory view of the first frame and the first air passage member according to the first embodiment.

  FIG. 6A shows the first frame 6 as viewed from the center of the sphere. As shown in FIG. 6A, the first frame 6 includes a plurality of first protrusions 601 toward the central axis 2 on the inner periphery of an annular cut surface (first frame side cut surface 605). Yes. A total of six first protrusions 601 are arranged at equal intervals, one at each intermediate position of the attracting air suction port 8 arranged at equal intervals on the circumference. Further, an arbitrary one of the plurality of first protrusions 601 is provided with a screw hole 602.

  FIG. 6B shows the first air channel member 204 corresponding to the first frame 6 in FIG. 6A from the center of the sphere at the position indicated by the broken line arrow 603 in FIG. It is a figure at the time of pushing. By arranging in this way, there is a space between the entire inner surface of the first frame 6 and the outside of the wall surface of the first air passage member 204 (outside of the walls constituting the induction air mixing portion 305 and the induction passage inner wall portion 302). And the space forms the air passage 304. It should be noted that pushing into the position indicated by the broken-line arrow 603 means that the induction passage inner wall 302 corresponding to each induction air suction port 8 is arranged with its circular shape matched. And each induction air suction port 8 and the induction channel | path inner wall part 302 which has an annular shape comprise the circle | round | yen which has the same diameter, and each circular edge part is formed thinly so that fitting is possible. . Here, the term “fitting” refers to fitting objects having shapes matched to each other.

  By pressing the corresponding attracting passage inner wall portion 302 against each attracting air suction port 8, the thin surfaces are closely joined to each other. Thereby, the spatial independence of the air flow path 304 comprised between the 1st flame | frame 6 and the 1st air path member 204 and the internal space of the 1st air path member 204 which is an attraction air path is maintained, and air Leakage can be prevented. However, in this state, the first frame 6 and the first air path member 204 are not yet pressure-bonded. Therefore, although they are spatially independent, they have not reliably prevented air leakage.

  The above is the locking procedure between the first frame 6 and the first air passage member 204 according to the first embodiment. With this locking, the hemisphere 604 on the blowing side pole 3 side is completed. Further, the motor 206 is fixed to the fixing portion 205 of the hemisphere 604 by an elastic member, and the base cover 207, the base 208, the motor cover 209, and the blades 210 are sequentially attached toward the suction side pole 4 direction. Screwed to the end of the rotation shaft of the motor 206. That is, the high-pressure air generator 211 is attached to the first air path member 204.

  Subsequently, the details of the second air passage member 212 according to the first embodiment will be described with reference to FIGS. 7, 8, and 9, and the locking procedure between the hemisphere and the second air passage member will be described. Also explained. 7 is a detailed explanatory view of the second air passage member according to the first embodiment of the present invention, and FIG. 8 is a hemisphere of the blowing side pole and the second air passage member according to the first embodiment of the present invention. FIG. 9 is an explanatory view showing before and after locking of the hemisphere and the second air passage member according to Embodiment 1 of the present invention. Further, FIG. 7A is a view of the second air passage member 212 as viewed from the sphere center direction, and FIG. 7B is a view of the second air passage member as viewed from the suction side pole direction.

  As shown in FIG. 7A, the second air passage member 212 includes a plurality of first protrusions 601 provided on the first frame 6 that are guided in the center direction of the sphere in parallel with the central axis 2. The first guide portion 701 (same number as the first protrusions 601 in the first embodiment) is provided. In addition, a plurality of first locking portions 702 for preventing the first protrusion 601 provided on the first frame 6 from moving toward the blowing side pole 3 side are provided in the vicinity of the first guide portion 701 (this embodiment). 1, the same number of first protrusions 601 as 6). In addition, the screw hole 705 is provided in the position corresponding to the screw hole 602 of the 1st flame | frame 6 mentioned above among the some 1st latching | locking parts 702. FIG. Further, a plurality of second guide portions 703 and a plurality of second locking portions 704 are provided (six in each case in the first embodiment). The second guide portions 703 and the second locking portions 704 will be described later. To do. The second air passage member 212 further includes a circular air inlet 201 side opening (air inlet side opening 706) centered on the central axis 2.

  Further, as shown in FIG. 7B, on the second frame 7 side of the second air passage member 212, on the outer periphery of the air suction port side opening 706, concentrically with the air suction port side opening 706. A circular second engaging portion 707 is provided. The second engaging portion 707 has a cylindrical shape centered on the central axis 2 and has a shape protruding in the direction of the suction side pole 4 (convex shape).

  As shown in FIG. 8, when the second air passage member 212 shown in FIG. 7 is locked to the hemisphere 604 to which the high-pressure air generator 211 is fixed, first, the air of the second air passage member 212 is The cut surface opposite to the suction port side opening 706 is made to face the cut surface of the hemisphere 604 (first frame side cut surface 605). Subsequently, the six corresponding support portions 213 and the contact portions 214 are arranged at positions facing each other (see a broken line 801 in FIG. 8). At this time, the screw hole 602 provided in the first frame 6 and the screw hole 705 provided in the second air passage member 212 are opposed to each other. FIGS. 9A and 9B are enlarged views of the point portion 802 in FIG. 8 when placed and brought close to each other as described above. In FIG. 8, the rotation direction of the blade 210 is counterclockwise when viewed from the direction of the suction side pole 4 as indicated by an arrow 803.

  FIG. 9A is a diagram before screwing, and FIG. 9B is a diagram after screwing, which will be described in detail. As shown in FIG. 9A, before screwing, the first protrusion 601 is slid along the inner wall of the first guide portion 701 in the direction of the second air passage member 212 (arrow 903 direction). Here, sliding means moving in a contact state. By the sliding, the first protrusion 601 passes through the first guide part 702 to the suction side pole 4 side (downward in FIG. 9A), and the vertical relationship in the direction parallel to the central axis is reversed. In this state, the support portion 213 and the contact portion 214 are in contact with each other at a cross section substantially perpendicular to the central axis 2 (broken line portion 902). At this time, about 50% of the cross-sectional areas of the support part 213 and the contact part 214 are brought into contact with each other.

  Here, the cross section 904 of the support portion 213 is inclined with respect to the cross section perpendicular to the central axis 2. The direction of the inclination is a direction in which the facing contact portion 214 is pushed out in the direction of the suction side pole 4 during the rotation at the time of screwing (arrow 905). The rotation direction at the time of screwing is a direction in which the second air passage member 212 is rotated in the reverse direction with respect to the rotation direction of the blades 210.

  The cross section 906 of the contact portion 214 is also inclined with respect to the cross section perpendicular to the central axis 2. The direction of the inclination is a direction in which the opposing support portion 213 is pushed out in the direction of the air blowing side pole 3 during the rotation at the time of screwing (arrow 905). With this configuration, as shown in FIG. 9B after screwing, after screwing, the support portion 213 and the abutting portion 214 are screwed to each other (the direction in which both poles are directed toward the sphere center) due to the inclination. Produces a force in the opposite direction (arrow 907).

  As described above, the support portion 213 and the contact portion 214 are pressed against each other in the direction of repulsion when screwed together, and as a result, the first air passage member 204 is brought into contact with the first frame 6 and the second air passage. The member 212 can be press-contacted to the second frame 7 (here, the joining of the second frame 7 has not yet been explained, but when the first frame 6 and the second frame 7 are joined, the second wind The road member 212 is pressed to the second frame 7 side). Thereby, the airtightness of the air flow path constituted by the first airflow path member 204 and the first frame 6 can be improved, and at the same time, the airtightness of the induced airflow path from the induced air inlet 8 to the induced air outlet 10 This also improves the performance and prevents the mutual airflows from interfering with each other. Moreover, although the confidentiality of the ventilation path which connects the 2nd air path member 212 and the 2nd flame | frame 7 can also be improved similarly, this structure is mentioned later.

  Further, when the high-pressure air generator 211 is configured to be fixed to the first air passage member 204, the screwing rotation direction (the rotation direction in the circumferential direction) is the rotation direction of the blades constituting the high-pressure air generation device 211. On the other hand, the second air passage member 212 is rotated in the reverse direction.

  In this configuration, the force applied to the first frame 6, the first air passage member 204, and the second air passage member 212 due to the rotation of the blades is in a direction in which the pressure due to the screwing increases. Looseness of the part can be prevented, that is, a decrease in airtightness can be prevented.

  Next, the first protrusion 601 whose vertical relationship is reversed as described above will be described. The contact surface 908 that contacts the contact surface 909 of the first locking portion 702 is inclined with respect to a cross section perpendicular to the central axis 2. The direction of the inclination is a direction in which the corresponding first locking portion 702 is pulled in the direction of the blower side pole 3 during the rotation at the time of screwing (arrow 910). The contact surface 909 of the first locking portion 702 is also inclined with respect to the cross section perpendicular to the central axis 2. The direction of this inclination is the direction in which the corresponding first protrusion 601 is pulled in the direction of the suction side pole 4 during the rotation at the time of screwing (arrow 910). With this configuration, as shown in FIG. 9B after screwing, after the screwing, the first locking portion 702 and the first protrusion 601 are pressure-bonded to each other by the inclination.

  As described above, the first frame 6 and the second air passage member 212 are pressure-bonded as a result by bringing the contact surfaces of the first locking portion 702 and the first protrusion 601 into pressure contact with each other during screwing. The Further, since the support portion 213 and the contact portion 214 are in contact with each other, the first air path member 204 is pressed and pressed against the first frame 6 as a result.

  The procedure for screwing the second air path member 212 to the hemispherical body 604 has been described above. After the screwing, the screw hole 602 and the screw hole 705 are arranged to form a concentric circle. Screw into the hole from the second air passage member 212 side (arrow 912 in FIG. 9B). This screwing is intended to prevent the movement (displacement) of the second air passage member 212 and the first frame 6 in the circumferential direction. Therefore, regardless of the number of screws to be used, it is possible to always apply pressure uniformly from the second air passage member 212 to the first frame 6 side. In other words, the air density of the air passage is reduced due to the looseness of the screws, and no air leakage occurs as a result.

  The above is the locking procedure of the first frame 6, the first air passage member 204, and the second air passage member 212 according to the first embodiment. For convenience of explanation, a substantially spherical body composed of the first frame 6, the first air path member 204, and the second air path member 212 is hereinafter referred to as a substantially spherical body A.

  Subsequently, the details of the second frame 7 according to the first embodiment will be described with reference to FIGS. 10 and 11, and the locking procedure between the second air passage member 212 and the second frame 7 will also be described. To do. FIG. 10 is a detailed explanatory view of the second frame according to Embodiment 1 of the present invention, and FIG. 11A is an explanatory view of the engagement between the substantially spherical body A and the second frame.

  FIG. 10 shows the shape of the second frame 7 as viewed from the center of the sphere, and a plurality of second protrusions 1001 are provided on the inner periphery of the annular second frame-side cut surface 1004 toward the central axis 2. ing. A plurality (six in the first embodiment) of second protrusions 1001 are arranged at equal intervals on the circumference. In addition, a first engagement portion 1002 having a circular shape centered on the central axis 2 is provided on the outer peripheral portion of the air suction port 201 formed of a plurality of through holes. The first engaging portion 1002 has a concave shape, that is, the second engaging portion 707 having the same cylindrical shape provided in the second air passage member 212 is sandwiched between the inner periphery and the outer periphery of the concave shape. Are arranged as possible. Further, a screw hole 1003 for screwing with the second air passage member 212 is provided. Here, “engagement” refers to engaging and matching, and here, the concave-convex shape means combining the concave and convex portions.

  As shown in FIG. 11A, when the second frame 7 shown in FIG. 10 is locked to the substantially spherical body A, first, the first frame side cut surface 605 and the second frame side cut surface 1004 are set. Place them facing each other.

  Subsequently, the six second protrusions 1001 are opposed to the six second guide portions 703 provided on the second air passage member 212, respectively, and are slid along the guide direction (guide line 1103). Specifically, the guide direction is a direction parallel to the central axis and causing the suction side electrode 4 to be close to the blower side electrode 3. In addition, the left figure of Fig.11 (a) is the schematic for demonstrating the positional relationship of the 2nd guide part 703 and the 2nd protrusion 1001. FIG.

  When the second protrusion 1001 is slid in the guide direction, the sliding of the second protrusion 1001 stops at a guide end point, that is, at a position 1004 where the second frame side cutting surface 1004 contacts the first frame side cutting surface 605. . When the first frame 6 or the second frame 7 is rotated in the screwing direction 1105 in this state, the second protrusion 1001 is hooked on the second locking portion 704 as shown in FIG. The The term “hanging” refers to hooking and stopping.

  Here, each of the second protrusion 1001 and the second locking portion 704 is inclined with respect to a cross section perpendicular to the central axis 2 at the contact surface. The direction of this inclination is a direction (arrow 1106) which pulls the corresponding 2nd latching | locking part 704 to the suction side pole 4 in the case of the rotation at the time of screwing (screwing direction 1105). With this configuration, as shown on the right side of FIG. 11B after screwing, after screwing, the second protrusion 1001 and the second locking portion 704 are pressed against each other by the inclination, that is, the second frame. 7 and the second air passage member 212 are pressure-bonded. Naturally, since the second air passage member 212 is pressure-bonded to the first frame 6 by the above-described configuration, as a result, the second frame 7 and the first frame 6 have their cut surfaces 5 (first frame side cut surfaces). 605 and the second frame side cut surface 1004) are pressed and pressed.

  At the time of this pressure contact, the first engagement portion 1002 having a concave shape provided on the outer periphery of the air suction port 201 of the second frame 7 and the second frame 7 side of the second air passage member 212 are provided. The second engaging portion 707 having a convex shape is also pressed and pressed.

  As described above, the first frame 6 and the second frame 7 are pressed at the cut surfaces by bringing the contact surfaces of the second protrusion 1001 and the second locking portion 704 into pressure contact with each other at the time of screwing. This makes it possible to improve the airtightness of the air passage constituted by the inner surface of the first frame 6 and the inner surface of the second frame 7.

  Similarly, since the second frame 7 and the second air passage member 212 are pressure-bonded by the first engagement portion 1002 and the second engagement portion 707, the air suction port 201 and the arrangement space 216 configured by these are used. It is possible to improve confidentiality in the air path between the two.

  The above is the locking procedure between the second air passage member and the second frame 7 according to the first embodiment, and finally, the screw hole 1003 of the second frame 7 is screwed from the outside of the substantially spherical body. Thus, the second air passage member 212 and the second frame 7 are pressure-bonded, and the blower 1 is completed. This screwing is also intended to prevent the movement (displacement) of the second air passage member 212 and the second frame 7 in the circumferential direction. Therefore, regardless of the number of screws to be used, the second air path member 212 can be constantly and evenly pressurized from the second frame 7 side. In other words, it is possible to prevent the air density of the air passage from decreasing due to the looseness of the screws, and as a result, air leakage can be prevented.

  As described above, since the conventional air blower has a drive unit (impeller, motor, etc.), there is a problem in that each part is displaced due to the vibration, and the airtightness decreases as the usage time increases. In particular, due to the shape of the sphere, a twisting force is generated in the circumferential direction around the axis, and this point also promotes the displacement of each part.

  On the other hand, in the blower device 1 according to Embodiment 1 of the present invention, the first frame 6 and the second frame 7 are brought into contact with each other with the circular cut surfaces 5 aligned, and one frame is rotated in the circumferential direction. And the frames are screwed together. Thereby, since the 2nd flame | frame 7 crimps | bonds the 1st air path member 204 to the 1st frame 6 via the 2nd air path member 212, the airtightness of an air path can be improved.

  Further, when the high-pressure air generator 211 is configured to be fixed to the first air passage member 204, the screwing rotation direction (rotational direction in the circumferential direction) is the rotation of the blades 210 constituting the high-pressure air generator 211. The second air passage member 212 is rotated in the opposite direction with respect to the direction.

  In this configuration, the force applied to the first frame 6, the first air path member 204, and the second air path member 212 due to the rotation of the blades is in the direction in which the pressure increases due to the screwing, and therefore even in long-term use. Looseness of each part can be prevented, that is, deterioration of airtightness can be prevented.

  Further, the support portion 213 and the abutting portion 214 are brought into pressure contact with each other in a direction in which they repel each other at the time of screwing, and as a result, the first air passage member 204 is placed on the first frame 6 and the second air passage member 212 is placed on the second. The frame 7 can be pressed and pressed. Thereby, the airtightness of the air flow path constituted by the first airflow path member 204 and the first frame 6 can be improved, and at the same time, the airtightness of the induced airflow path from the induced air inlet 8 to the induced air outlet 10 This also improves the performance and prevents the mutual airflows from interfering with each other. Similarly, the confidentiality of the air passage that communicates the second air passage member 212 and the second frame 7 can also be improved.

  In the above-described configuration, all of the first protrusion 601, the first locking part 702, the second protrusion 1001, and the second locking part 704 are connected to the air supply side electrode 3 and the suction side electrode 4 at the time of screwing. A pressure contact structure in which two poles are pressed and pressed in the center direction 301 of the sphere has been described. However, at least one of the first protrusion 601, the first locking part 702, the second protrusion 1001, and the second locking part 704 may have a pressure contact structure. Even in this case, the airtightness of the air passage can be improved similarly.

  In the first embodiment, as an example, six attraction air suction ports 8, support portions 213, abutment portions 214, projection portions 601, projection portions 1001, engagement portions 702, engagement portions are arranged at equal intervals on the circumference. Although the example provided with the part 704 etc. was demonstrated, the number is not restricted to six, What is necessary is just three or more. Moreover, it does not necessarily need to be equally spaced, and adjacent members (support portions 213, contact portions 214, first protrusions 601, second protrusions 1001, first locking portions 702, The central axis 2 only needs to be included inside a polygon formed by a connecting line connecting the two locking portions 704). As a result, the first air passage member 204 is in close contact with the first frame 6 at the time of pressure contact between the first frame 6 and the second frame 7, so each member (particularly the opening 9 and the induced air outlet 10). There will be no misalignment.

  Finally, although the air blower has been described in the first embodiment, it is possible to distribute the air blower alone as a case for the air blower without attaching the high-pressure air generator 211.

  It is useful as a casing for a blower device that gives a refreshing feeling by blowing air or promotes air circulation in a space, and a blower device.

DESCRIPTION OF SYMBOLS 1 Air blower 2 Center axis | shaft 3 Fan side electrode (it corresponds to one pole)
4 Suction side electrode (corresponds to the other electrode)
DESCRIPTION OF SYMBOLS 5 Cut surface 6 1st frame 7 2nd frame 8 Attracting air suction inlet 9 Opening part 10 Attracting air blower outlet 201 Air suction inlet 204 1st air path member 211 High pressure air generator 212 2nd air path member 213 Support part 214 Contact portion 215 engagement portion (corresponding to the second engagement portion)
216 Space for Arrangement 305 Induction Air Mixing Unit 401 Air Blowout

Claims (6)

A first frame having one pole, an opening provided to include the one pole, and an attracting air suction port for sucking inductive air, the other pole facing the one pole, and an air suction port for sucking air A substantially spherical body consisting of a second frame with
It is provided in the internal space of the main body, communicates the attraction air inlet and the opening inside the wall surface, and comprises the air inlet and the opening by the outside of the wall surface and the inner surface of the first frame. A first air passage member communicating with the air passage;
An arrangement space that is provided in the internal space of the main body and is arranged between the first air passage member to communicate with the air passage and to arrange the high-pressure air generator is formed between the arrangement space and the air suction port. A second air passage member communicating with
With
The first frame and the first air passage member are joined together so as to form the opening and the attraction air suction port, respectively, and the first frame and the second air passage member are screwed together,
A blower housing for press- contacting the cut surface of the first frame and the cut surface of the second frame by screwing the second frame and the second air passage member . When the high-pressure air generator is configured to be fixed to the first air passage member,
The screwing by the rotation in the circumferential direction is
2. The blower casing according to claim 1, wherein the second air passage member and the second frame are rotated in a reverse direction with respect to a rotation direction of blades constituting the high-pressure air generator. The first frame is
A hollow, substantially hemispherical shape that includes one pole where the central axis of the sphere contacts,
The circular opening provided near the one pole and perpendicular to the central axis;
A plurality of air inlets provided at equal intervals in the circumferential direction of the central axis around the one pole;
A plurality of first protrusions projecting toward the central axis on the inner periphery of the cut surface facing the circular opening;
The second frame is
A hollow, substantially hemispherical shape that includes the other pole that is tangent to the central axis and that faces the one pole;
A first engagement portion that forms a circle centered on the central axis and engages with the second air passage member in contact with the circle;
A plurality of second protrusions projecting toward the central axis on the inner periphery of the cut surface facing the other pole;
The first air passage member is
The inside of the wall surface provided with an inner wall portion of the attraction passage communicating with the plurality of attraction air suction ports, an attraction air mixing portion for mixing the air attracted from the attraction air suction port through the inner wall portion of the attraction passage, and the circular shape A circular induction air outlet that is provided on the same and substantially the same plane as the opening of the air outlet and discharges the mixed air;
A plurality of support portions projecting in the other pole direction on the outer wall surface of the plurality of induction passage inner wall portions,
The second air passage member is
A plurality of abutting portions that abut each of the plurality of support portions;
A first guide portion for guiding the first protrusion in the direction parallel to the central axis;
A first locking portion for preventing movement of the first protrusion in the one polar direction during the screwing;
A second guide portion for guiding the second protrusion in the direction parallel to the central axis;
A second locking portion for preventing movement of the second protrusion in the other pole direction during the screwing;
A second engagement portion that engages with the first engagement portion so as to be screwable;
The housing | casing for air blowers of Claim 1 or 2. At least one of the first protrusion, the first locking part, the second protrusion, and the second locking part,
The air blower casing according to any one of claims 1 to 3, further comprising a pressure contact structure in which the two poles are pressed and pressed in the center direction of the sphere during the screwing. The support part and the contact part are
5. The pressure contact structure according to claim 1, wherein the first air path member is pressed and pressed in the first frame direction and the second air path member is pressed and pressed in the second frame direction during the screwing. The housing for an air blower described in 1. The air blower provided with the high pressure air generator in the said space for arrangement | positioning of the housing | casing for air blowers of any one of Claims 1-5.

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