Blowing device

Abstract

To provide a blowing device for sufficiently showing hair entangling suppression performance while minimizing air flow reduction.SOLUTION: A blowing device 1 includes: a housing 3 having an inlet and an outlet; a suction channel 25 arranged inside the housing 3 so as to allow air sucked from the inlet to flow through; a fan 5 arranged inside the housing 3 so as to suck air from the inlet and to discharge the air from the outlet; a filter arranged at the inlet; and a partition member 9 arranged inside the suction channel 25 and located between the filter and the fan 5. The partition member 9 includes a partition part 43 for allowing an opening ratio of the suction channel 25 with respect to an opening area to be 40%-80%.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to a blower device. [Background technology]

[0002] Conventionally, a blower device includes a housing having an intake port and an exhaust port, and an intake flow path provided inside the housing through which air drawn in from the intake port flows. The blower device also includes a fan provided inside the housing for drawing in air from the intake port and exhausting the air from the exhaust port, and a filter disposed at the intake port. A blower device is also known that further includes a second filter provided inside the intake flow path and disposed between the filter and the fan as a partition member (see Patent Document 1).

[0003] In a blower, hair may enter the inside through the filter due to the intake of air. The hair that enters the inside may hit the rotating fan and become complicatedly tangled, making it impossible to pull it out of the filter. In this blower, a second filter is disposed between the filter and the fan, thereby shortening the distance between the second filter and the fan. This reduces the space in which hair that enters the inside through the filter can become tangled, making it possible to suppress hair tangling and pull the hair out of the filter. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2013-123525 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the blower of the above Patent Document 1, the second filter as a partition member has a filter frame and a mesh filter, and the filter frame and the mesh filter are integrated. The filter frame is composed of an annular outer peripheral wall and five pier walls extending radially from the center of the outer peripheral wall, and only the five pier walls are a part that causes flow resistance of the air flowing through the intake flow path. The mesh filter has an opening rate of about 90%, suppressing the flow resistance of the air. However, in the second filter of the above Patent Document 1, in order to minimize the decrease in air volume due to the increase in flow resistance, the opening rate relative to the opening area of ​​the intake flow path is high, which may result in insufficient hair entanglement suppression performance.

[0006] The present disclosure has been made in consideration of the problems inherent in the conventional techniques, and an object of the present disclosure is to provide an air blowing device that can sufficiently suppress hair tangling while minimizing the reduction in air volume. [Means for solving the problem]

[0007] An air blower according to an embodiment of the present disclosure comprises a housing having an intake port and an exhaust port, an intake flow path provided inside the housing through which air drawn in from the intake port flows, a fan provided inside the housing for drawing in air through the intake port and exhausting the air from the exhaust port, a filter disposed in the intake port, and a partition member provided inside the intake flow path between the filter and the fan, the partition member having a partition portion with an opening ratio relative to the opening area of ​​the intake flow path of 40% to 80%. Effect of the Invention

[0008] According to the present disclosure, it is possible to provide an air blower that can sufficiently exhibit hair tangling prevention performance while minimizing reduction in air volume. [Brief description of the drawings]

[0009] [Figure 1] FIG. 2 is a side view of the blower device according to the first embodiment. [Diagram 2]1 is a cross-sectional view of a blower device according to a first embodiment. [Diagram 3] FIG. 2 is a front view of the blower device according to the first embodiment with a partition member removed. [Figure 4] FIG. 2 is a front view of the blower according to the first embodiment with a filter removed. [Diagram 5] FIG. 2 is a front view of a partition member of the air blower according to the first embodiment. [Figure 6] 5 is a diagram showing a change in the rate of decrease in air volume relative to the opening ratio of an intake flow path of the blower device according to the first embodiment. FIG. [Figure 7] FIG. 4 is a diagram showing a change in the occurrence rate of twisting of hair with respect to the opening ratio of an intake passage of the air blower according to the first embodiment. [Figure 8] FIG. 11 is a front view of the air blower according to the second embodiment with the filter removed. [Figure 9] FIG. 11 is a front view of a partition member of the air blower according to the second embodiment. [Figure 10] FIG. 11 is a front view of the air blower according to the third embodiment with the filter removed. [Figure 11] FIG. 11 is a front view of a partition member of the air blower according to the third embodiment. [Figure 12] FIG. 11 is a front view of the air blower according to the fourth embodiment with the filter removed. [Figure 13] FIG. 13 is a front view of a partition member of a blower device according to a fourth embodiment. [Figure 14] FIG. 13 is an enlarged view of a main part of FIG. [Figure 15] FIG. 11 is an enlarged cross-sectional view of a main part of a blower device according to a fifth embodiment. [Figure 16] FIG. 13 is a front view of the blower device according to the sixth embodiment with the filter removed. [Figure 17] FIG. 13 is a front view of a partition member of a blower device according to a sixth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, the embodiments will be described in detail with reference to the drawings. However, more detailed description than necessary may be omitted. For example, detailed description of already well-known matters or duplicate description of substantially the same configuration may be omitted.

[0011] It should be noted that the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0012] (First embodiment) The first embodiment will be described with reference to FIGS. 1 to 7. FIG.

[0013] 1 to 5, a blower 1 according to this embodiment is applied to, for example, a hair dryer. The blower 1 includes a housing 3, a fan 5, a filter 7, and a partition member 9.

[0014] As shown in FIGS. 1 to 4, the housing 3 includes a grip housing 11, a main body housing 13, and a flow path housing 15. The grip housing 11 includes a main body housing 13 and a flow path housing 15. As shown in FIG.

[0015] The grip housing 11 is formed in a cylindrical shape, and the outer surface of the grip housing 1 is gripped by the user's hand when the blower 1 is used. The grip housing 11 is provided with a switch unit 17 for turning the power of the blower 1 on and off. The switch unit 17 is electrically connected to the electric components arranged inside the housing 3, and is electrically connected to a power cord (not shown) drawn out from an end of the grip housing 11 to the outside. The switch unit 17 has a slide-type button arranged on the outer surface of the grip housing 11, and the power supply to the electric components is turned on and off by operating the button. The switch unit 17 may be configured to switch the air volume by operating the button, for example. The grip housing 11 is rotatably connected to the main housing 13 via a connecting unit 19. For example, when the blower 1 is used, the grip housing 11 is rotated relative to the main housing 13 so that the appearance is T-shaped. For example, when the blower 1 is stored, the grip housing 11 is rotated relative to the main housing 13 so that the grip housing 11 is folded close to the main housing 13.

[0016] The main housing 13 is formed in a cylindrical shape so as to have an air flow path through which air flows inside. An opening on one side in the length direction of the main housing 13 is an intake port 21 that draws air into the inside. An opening on the other side in the length direction of the main housing 13 is an exhaust port 23 that exhausts the air inside to the outside. Therefore, inside the main housing 13, air flows so that the intake port 21 is on the upstream side of the air flow and the exhaust port 23 is on the downstream side of the air flow. Note that the main housing 13 is provided with, for example, a switch unit having a push button for switching the air temperature, a display unit that displays the air temperature, and a display lamp that displays the operation of the blower 1, although not shown. The switch unit, the display unit, and the like are electrically connected to a control board provided in the main housing 13.

[0017] The flow passage housing 15 is formed in a cylindrical shape so as to have an air passage through which air flows inside. The suction port 21 side of the flow passage housing 15 forms an intake passage 25 through which air sucked from the suction port 21 flows. The opening 27 of the intake passage 25 is set to have an opening area smaller than the opening area of ​​the suction port 21, and is disposed at a position eccentric to the center of the suction port 21 so that the center is located above the center of the suction port 21. The end of the opening 27 of the intake passage 25 is formed in a tapered shape that expands radially outward. By forming the end of the opening 27 in a tapered shape, the air sucked from the suction port 21 can be introduced into the intake passage 25 without reducing the flow rate.

[0018] The discharge port 23 side of the flow path housing 15 forms a discharge flow path that guides the air that has flowed through the suction flow path 25 to the discharge port 23. The opening area of ​​the discharge flow path is set to be equal to the opening area of ​​the discharge port 23, and the center is located at the same position as the center of the discharge port 23. A heater 29 that heats the flowing air is provided in the discharge flow path. The heater 29 is electrically connected to a power source and a switch unit for switching the air temperature, and its operation is turned on and off by operating a button on the switch unit for switching the air temperature. A fan 5 is arranged inside the flow path housing 15.

[0019] As shown in Figs. 2 to 4, the fan 5 has a plurality of blades 33 formed integrally with the head 31 on the outer periphery of the head 31, and the head 31 and the blades 33 are rotated by driving a motor 35 electrically connected to a power source. The head 31 and the blades 33 of the fan 5 are disposed inside the intake passage 25 of the flow path housing 15, and the motor 35 is disposed inside the discharge passage of the flow path housing 15. The fan 5 rotates in the direction of arrow A in Fig. 4 to suck in air from the intake port 21 and discharge the air from the discharge port 23 through the air passage of the flow path housing 15. The motor 35 is electrically connected to the switch unit 17, and the rotation is controlled by operating the button of the switch unit 17, and the air is discharged from the discharge port 23 at a volume corresponding to the controlled rotation. A filter 7 is provided at the intake port 21 into which air is sucked by the rotation of the fan 5.

[0020] As shown in FIG. 2 and FIG. 3, the filter 7 includes a frame 37 and a mesh 39. The frame 37 has an outer shape formed in a ring shape similar to the opening of the intake port 21, and is formed in a mesh shape so as to subdivide the opening area of ​​the intake port 21. The mesh shape of the frame 37 is preferably a honeycomb shape in order to maintain strength and increase the opening area of ​​the intake port 21 to increase the air flow rate. The size of the mesh of the frame 37 is set based on a size that does not allow the insertion of a test finger (φ25 mm) as specified by the Electrical Appliance and Material Control Law. Therefore, when using the blower 1, the user's finger will not pass through the frame 37 and be inserted into the inside of the housing 3. The frame 37 is fixed to the housing 3 by passing a screw 41 through the screw hole and is arranged at the intake port 21. The screw hole is arranged outside the range of the opening 27 of the intake passage 25 in the frame 37, preventing a decrease in the air flow rate to the intake passage 25. In addition, the generation of abnormal noise caused by interference between the high flow rate air and the screws 41 can be suppressed.

[0021] The mesh 39 is formed of, for example, a flame-retardant resin such as metal or polyester in a mesh shape. The opening ratio of the mesh 39 is set to about 55% to 90%. The mesh 39 is insert-molded into the frame 37 so as to be located inside the frame 37. The mesh 39 prevents fine dust, hair, and the like from entering the inside of the housing 3. By insert-molding the mesh 39 into the frame 37, damage to the mesh 39 due to friction with the opening edge of the intake port 21 can be prevented. The mesh 39 is disposed inside the frame 37, near the outside of the housing 3. By disposing the mesh 39 near the outside of the housing 3, dust and the like attached to the mesh 39 can be easily removed from the outside of the housing 3. When the mesh 39 is disposed near the outside of the housing 3, the pattern of the mesh 39 may be conspicuous, so it is preferable to provide fine irregularities on the outer surface of the frame 37.

[0022] Here, when the distance between the filter 7 and the fan 5 is long, hair that has passed through the filter 7 may be disposed between the filter 7 and the fan 5. The hair disposed between the filter 7 and the fan 5 may come into contact with the fan 5 and be converged radially inward, or may be repelled radially outward. When multiple hairs are converged radially inward, the multiple hairs become entangled on the central axis side of the fan 5 while twisting due to the rotation of the fan 5. When multiple hairs are repelled radially outward, the multiple hairs become entangled on the outer diameter side of the fan 5 while twisting due to the repelling of the fan 5. The entangled hair is caught by the filter 7 even if an attempt is made to pull it out from the outside of the housing 3, and cannot be pulled out. Therefore, in order to suppress entanglement of hair, a partition member 9 is provided between the filter 7 and the fan 5.

[0023] As shown in Figures 2, 4 and 5, the partition member 9 is disposed inside the intake passage 25 between the filter 7 and the fan 5. The partition member 9 has an outer shape formed in an annular shape similar to that of the opening 27 of the intake passage 25, and has a partition portion 43 that subdivides the opening area of ​​the opening 27 of the intake passage 25. The partition portion 43 is formed in a lattice shape by integrating a plurality of vertical walls extending in the vertical direction and a plurality of horizontal walls extending in the horizontal direction at their intersecting points. The radially outer end of the partition portion 43 is integrally joined to the inner wall of the intake passage 25 by a joining means such as adhesion or welding, and the partition member 9 is fixed to the housing 3.

[0024] The partition member 9 is disposed between the filter 7 and the fan 5, thereby reducing the space in which hair can become entangled between the filter 7 and the fan 5. Even if multiple hairs that have passed through the partition member 9 come into contact with the fan 5, there is no space in which twisting that would cause the multiple hairs to become entangled can be caused, and entanglement of the hair can be suppressed. Therefore, when hair is pulled out from outside the housing 3, the hair does not get caught on the filter 7, and the hair can be easily pulled out.

[0025] Here, if the partition portion 43 of the partition member 9 is opened so as to reduce the opening ratio with respect to the opening area of ​​the intake passage 25, even if the hair comes into contact with the fan 5, twisting due to the movement of the hair is suppressed, and hair entanglement can be suppressed. The opening ratio indicates the ratio of the surface perpendicular to the airflow direction in the intake passage 25 that is open. Therefore, the opening ratio can be obtained by dividing the opening area of ​​the vertical surface in a state where the partition portion 43 of the partition member 9 is located in the intake passage 25 by the opening area of ​​the vertical surface of the intake passage 25. On the other hand, if the partition portion 43 of the partition member 9 is opened so as to increase the opening ratio with respect to the opening area of ​​the intake passage 25, a decrease in the flow rate of air flowing through the intake passage 25 can be suppressed. Therefore, the openings of the partition portion 43 of the partition member 9 are set so that the opening ratio with respect to the opening area of ​​the intake passage 25 can be sufficiently exhibited while minimizing the decrease in air volume.

[0026] The range of the aperture ratio with respect to the opening area of ​​the intake passage 25 can be derived from the relationship between the aperture ratio of the intake passage 25 and the rate of decrease in the air volume, and the relationship between the aperture ratio of the intake passage 25 and the rate of twisting of hair. It is generally known that when the aperture ratio is low with respect to the opening area of ​​the intake port 21, as in the case where a flow resistance such as a filter 7 is arranged, the rate of decrease in the air volume increases quadratically. Therefore, as shown in FIG. 6, according to the approximation curve of the relationship between the aperture ratio of the opening 27 of the intake passage 25 and the rate of decrease in the air volume, when the upper limit of the rate of decrease in the air volume is set to 10%, the lower limit of the aperture ratio of the opening 27 of the intake passage 25 is about 40%. On the other hand, as shown in FIG. 7, in the relationship between the aperture ratio of the opening 27 of the intake passage 25 and the rate of twisting of hair, it can be seen that the rate of twisting of hair increases when the aperture ratio of the opening 27 of the intake passage 25 is 80%. Therefore, the upper limit is 80%, which is the aperture ratio of the opening 27 of the intake passage 25 when the rate of twisting of hair is 0%.

[0027] From the above, the openings of the partition portion 43 of the partition member 9 are set so that the opening ratio with respect to the opening area of ​​the intake flow path 25 is 40% to 80%. This reduces flow path resistance caused by the partition member 9, suppresses a decrease in the flow rate of air flowing through the intake flow path 25, and minimizes a decrease in air volume. In addition, the partition member 9 prevents hair from being twisted even if the hair comes into contact with the fan 5, and can fully exhibit hair entanglement suppression performance. By suppressing hair entanglement, the user does not need to cut hair entangled in the filter 7, reducing the risk to the user.

[0028] Such an air blower 1 includes a housing 3 having an intake port 21 and an exhaust port 23, and an intake flow path 25 provided inside the housing 3 and through which air drawn in from the intake port 21 flows. The air blower 1 also includes a fan 5 provided inside the housing 3 for drawing in air from the intake port 21 and exhausting the air from the exhaust port 23, and a filter 7 disposed at the intake port 21. The air blower 1 further includes a partition member 9 provided inside the intake flow path 25 and disposed between the filter 7 and the fan 5. The partition member 9 has a partition portion 43 that sets an opening ratio with respect to the opening area of ​​the intake flow path 25 to 40% to 80%.

[0029] This reduces flow resistance caused by the partition member 9, suppresses a decrease in the flow rate of air flowing through the intake flow path 25, and minimizes a decrease in air volume. In addition, the partition member 9 prevents hair from being twisted even if the hair comes into contact with the fan 5, and thus the hair entanglement prevention performance can be fully exhibited.

[0030] Therefore, in such an air blower 1, the reduction in air volume can be minimized while the hair entanglement suppression performance can be sufficiently exhibited.

[0031] Second embodiment The second embodiment will be described with reference to FIGS.

[0032] The blower 101 of this embodiment has an annular wall 103 formed in a ring shape with one or more partition sections 43 arranged radially between the central axis of the fan 5 and the inner wall of the intake passage 25, and a connecting wall 105 connecting the annular wall 103 and the inner wall of the intake passage 25.

[0033] Note that the same symbols are used for configurations similar to those in the first embodiment, and explanations of the configurations and functions will be omitted and refer to the first embodiment; however, since the configuration is the same as the first embodiment, the effects obtained are the same.

[0034] As shown in FIGS. 8 and 9, the partition portion 43 of the partition member 9 includes an annular wall 103 and a connecting wall 105. The connecting wall 105 is made of a material such as aluminum.

[0035] The annular wall 103 is formed in a circular ring shape so that its center is located at the same position as the central axis of the fan 5. A plurality of annular walls 103 (three in this example) are provided so that one or more annular walls 103 are located radially between the central axis of the fan 5 and the inner wall of the intake passage 25, and so that the diameter increases from the central axis of the fan 5 toward the radially outward direction. When a hair that has passed through the partition member 9 comes into contact with the fan 5, the annular wall 103 restricts the radial movement of the hair in the intake passage 25, and suppresses entanglement due to twisting of multiple hairs.

[0036] The connecting wall 105 is formed integrally with the annular wall 103 and is joined integrally with the inner wall of the intake passage 25 by a joining means such as adhesion or welding, and connects the annular wall 103 and the inner wall of the intake passage 25. A plurality of connecting walls 105 are provided in the circumferential and radial directions of the intake passage 25. Here, four connecting walls 105 are provided between the radially innermost annular walls 103, 103 adjacent to each other in the radial direction. Eight connecting walls 105 are provided between the four connecting walls 105 and the radially adjacent annular walls 103, 103. Eight connecting walls 105 are provided between the radially outermost annular walls 103 adjacent to each other in the radial direction and the inner wall of the intake passage 25. The connecting wall 105 has a first connecting point 107 that connects to the inner wall of the intake passage 25 or the annular wall 103 located on the radially outer side, and a second connecting point 109 that connects to the annular wall 103 located on the radially inner side. The multiple connecting walls 105 extend radially outward from the central axis of the fan 5 so that the first connecting point 107 and the second connecting point 109 are each located on a straight line passing through the central axis of the fan 5. When a hair passes through the partition member 9 and comes into contact with the fan 5, the connecting walls 105 restrict the circumferential movement of the hair in the intake passage 25, and suppress tangling of the multiple hairs due to twisting.

[0037] In such a blower device 101, the partition portion 43 has one or more annular walls 103 arranged radially between the central axis of the fan 5 and the inner wall of the intake passage 25 and formed in a ring shape, and a connecting wall 105 connecting the annular wall 103 and the inner wall of the intake passage 25.

[0038] When the hair that has passed through the partition member 9 comes into contact with the fan 5, the annular wall 103 restricts the radial movement of the hair in the suction passage 25, thereby preventing entanglement of multiple hairs due to twisting. When the hair that has passed through the partition member 9 comes into contact with the fan 5, the connecting wall 105 restricts the circumferential movement of the hair in the suction passage 25, thereby preventing entanglement of multiple hairs due to twisting. Therefore, the partition section 43 having the annular wall 103 and the connecting wall 105 can more effectively prevent entanglement of hair.

[0039] Third embodiment The third embodiment will be described with reference to FIGS.

[0040] In the blower device 201 according to the present embodiment, the partition portion 43 increases the opening ratio with respect to the opening area of ​​the intake passage 25 from the central axis of the fan 5 outward in the radial direction.

[0041] Further, a plurality of connecting walls 105 are provided in the circumferential and radial directions of the intake passage 25. Among the plurality of connecting walls 105, the plurality of connecting walls 105 located on the radially outer side are set to have a wider circumferential interval than the plurality of connecting walls 105 located on the radially inner side.

[0042] In addition, the radial spacing between the annular wall 103 and a radially adjacent member including the central axis of the fan 5 is set wider on the radially outer side of the annular wall 103 than on the radially inner side of the annular wall 103.

[0043] In addition, the same symbols are used for configurations that are similar to other embodiments, and explanations of the configurations and functions are omitted and refer to other embodiments, but since the configuration is the same as other embodiments, the effects obtained are the same.

[0044] Generally, hair is more easily sucked into the air inlet 21 on the central axis side of the fan 5 than on the outer diameter side of the fan 5. Meanwhile, in the vicinity of the fan 5, the flow rate of air is greater on the outer diameter side of the fan 5 than on the central axis side of the fan 5.

[0045] 10 and 11, the partition wall portion 43 of the partition wall member 9 is provided so that the opening ratio with respect to the opening area of ​​the intake passage 25 increases from the central axis of the fan 5 toward the radially outward direction. Here, eight connecting walls 105 are provided between the radially adjacent annular walls 103, 103 and between the annular walls 103 and the inner wall of the intake passage 25. The connecting walls 105 located on the radially outward side are set to have a wider circumferential interval than the connecting walls 105 located on the radially inward side. Therefore, in the intake passage 25, the opening area is wider on the radially outward side than on the radially inward side. Since the opening area of ​​the partition wall member 9 is narrower on the radially inward side of the intake passage 25, hair is less likely to be sucked in by the partition wall member 9, and entanglement of hair can be suppressed. Since the opening area of ​​the partition wall member 9 is wider on the radially inward side of the intake passage 25, the flow resistance of the partition wall member 9 is reduced, and a decrease in air volume due to the partition wall member 9 can be suppressed. In addition, by adjusting the circumferential spacing of the connecting walls 105, the opening ratio of the intake passage 25 can be easily adjusted.

[0046] A plurality of (here, three) annular walls 103 of the partition portion 43 are provided between the central axis of the fan 5 and the inner wall of the intake passage 25 in the radial direction, so that the diameter increases from the central axis side of the fan 5 toward the radially outer side. Here, the annular wall 103 located at the innermost side in the radial direction (the central axis side of the fan 5) is formed in a disk shape and has no opening. Here, for convenience of explanation, the annular wall 103 located at the innermost side in the radial direction is referred to as a first member, and the annular wall 103 located at the radially outer side of the first member is referred to as a second member. Also, the annular wall 103 located at the radially outer side of the second member is referred to as a third member, and the inner wall of the intake passage located at the radially outer side of the third member is referred to as a fourth member.

[0047] The radial distance between the first member and the second member is set to be narrower than the radial distance between the second member and the third member. The radial distance between the second member and the third member is set to be narrower than the radial distance between the third member and the fourth member. By setting the radial distance in this manner, the opening area of ​​the suction passage 25 is wider on the radially outer side than on the radially inner side. Therefore, the opening area of ​​the partition member 9 is narrower on the radially inner side of the suction passage 25, so that hair is less likely to be sucked in by the partition member 9, and hair entanglement can be suppressed. The opening area of ​​the partition member 9 is wider on the radially outer side of the suction passage 25, so that the flow resistance of the partition member 9 is reduced, and the decrease in air volume due to the partition member 9 can be suppressed. In addition, the opening ratio of the suction passage 25 can be easily adjusted by adjusting the radial distance of the annular wall 103. When the innermost annular wall 103 is opened (formed in an annular shape), the radial distance between the annular wall 103 and the central axis of the fan 5 should be set to the narrowest.

[0048] In such a blower device 201, the partition portion 43 increases the opening ratio with respect to the opening area of ​​the intake passage 25 from the central axis of the fan 5 outward in the radial direction.

[0049] Therefore, the opening area of ​​the partition member 9 is narrower on the radial inside of the suction flow passage 25, making it difficult for hair to be sucked in by the partition member 9 and preventing hair entanglement. On the radial outside of the suction flow passage 25, the opening area of ​​the partition member 9 is wider, reducing flow passage resistance caused by the partition member 9 and preventing a decrease in air volume caused by the partition member 9.

[0050] Further, a plurality of connecting walls 105 are provided in the circumferential and radial directions of the intake passage 25. Among the plurality of connecting walls 105, the plurality of connecting walls 105 located on the radially outer side are set to have a wider circumferential interval than the plurality of connecting walls 105 located on the radially inner side.

[0051] Therefore, by adjusting the circumferential spacing of the connecting walls 105, the opening ratio of the intake passage 25 can be easily adjusted.

[0052] In addition, the radial spacing between the annular wall 103 and a radially adjacent member including the central axis of the fan 5 is set wider on the radially outer side of the annular wall 103 than on the radially inner side of the annular wall 103.

[0053] Therefore, by adjusting the radial spacing of the annular walls 103, the opening ratio of the intake passage 25 can be easily adjusted.

[0054] (Fourth embodiment) The fourth embodiment will be described with reference to FIGS.

[0055] In the blower device 301 according to this embodiment, the connecting wall 105 has a first connecting point 107 that connects to the inner wall or annular wall 103 of the intake passage 25 located on the radially outer side, and a second connecting point 109 that connects to the annular wall 103 located on the radially inner side. The first connecting point 107 is disposed on the opposite side of the rotation direction A of the fan 5 with respect to a straight line L that passes through the central axis of the fan 5 and the second connecting point 109.

[0056] In addition, the same symbols are used for configurations that are similar to other embodiments, and explanations of the configurations and functions are omitted and refer to other embodiments, but since the configuration is the same as other embodiments, the effects obtained are the same.

[0057] Here, the hair that has entered the intake passage 25 may go beyond the wing 33 of the fan 5 and enter the inner part of the intake passage 25. If the hair that has gone beyond the wing 33 of the fan 5 is left in this state, it may become entangled in the wing 33 of the fan 5 and become difficult to pull out. Therefore, the hair that has gone beyond the wing 33 of the fan 5 needs to be cut by the wing 33 as the fan 5 rotates.

[0058] As shown in Figs. 12 to 14, in the partition member 9, the connecting wall 105 facing the blade portion 33 of the fan 5 in the air blowing direction has the first connecting point 107 disposed on the opposite side of the rotation direction of the fan 5 with respect to the straight line L passing through the central axis of the fan 5 and the second connecting point 109. By disposing the first connecting point 107 on the opposite side of the rotation direction of the fan 5, the radially outer side of the connecting wall 105 is inclined so as to face the rotation direction A of the fan 5. The hair abutting against the inclined connecting wall 105 is converged to the second connecting point 109 along the inclination of the connecting wall 105 by the rotation of the fan 5. Here, the cutting of the hair by the blade portion 33 of the fan 5 is easier because the rotational force is transmitted to the inner diameter side of the blade portion 33 more than to the outer diameter side of the blade portion 33. Therefore, the hair converged to the second connecting point 109 can be easily cut by the blade portion 33 by the rotation of the fan 5. The shape of the connecting wall 105 is set so as to have a curvature in the opposite direction to the rotation direction of the fan 5. The shape of the connecting wall 105 is formed so as to have a curvature symmetrical to the shape of the side surface in the rotation direction of the wing portion 33. By making the connecting wall 105 symmetrical to the side surface in the rotation direction of the wing portion 33, it becomes easier to cut hair with the wing portion 33.

[0059] In such a blower device 301, the connecting wall 105 has a first connecting point 107 that connects to the inner wall or annular wall 103 of the intake passage 25 located on the radially outer side, and a second connecting point 109 that connects to the annular wall 103 located on the radially inner side. The first connecting point 107 is disposed on the opposite side of the rotation direction A of the fan 5 with respect to a straight line L that passes through the central axis of the fan 5 and the second connecting point 109.

[0060] By arranging the first connecting point 107 on the opposite side to the rotation direction A of the fan 5, the radially outer side of the connecting wall 105 is inclined so as to face the rotation direction A of the fan 5. Hair that passes over the fan 5 and enters the inner part of the intake passage 25 is converged to the radially inner second connecting point 109, where the rotational force of the fan 5 is large, along the inclination of the connecting wall 105 by the rotation of the fan 5. Therefore, the hair that has converged to the second connecting point 109 can be easily cut by the rotation of the fan 5.

[0061] Fifth embodiment The fifth embodiment will be described with reference to FIG.

[0062] In the blower device 401 according to this embodiment, the partition member 9 is provided with an extension portion 403 that extends from the vicinity of the second connection point 109 toward the fan 5.

[0063] In addition, the same symbols are used for configurations that are similar to other embodiments, and explanations of the configurations and functions are omitted and refer to other embodiments, but since the configuration is the same as other embodiments, the effects obtained are the same.

[0064] As shown in FIG. 15, the partition member 9 is provided with an extension portion 403 that extends from the surface on the fan 5 side located near the second connecting point 109 (see FIG. 15) toward the fan 5. A plurality of extension portions 403 are provided corresponding to the plurality of second connecting points 109. The extension portions 403 are arranged so as to sandwich the hair converged at the second connecting point 109 between the side surface of the wing portion 33 of the fan 5 in the rotation direction. The extension portion 403 serves as a fulcrum for holding the hair when the hair is cut with the wing portion 33 of the fan 5. Therefore, by providing the extension portion 403, the fulcrum when cutting the hair becomes closer to the fan 5, and the hair can be cut more easily by the rotation of the fan 5.

[0065] In such a blower device 401, the partition member 9 is provided with an extension 403 that extends from the vicinity of the second connecting point 109 toward the fan 5.

[0066] Therefore, the extension 403 brings the fulcrum when cutting the hair closer to the fan 5, and the rotation of the fan 5 makes it easier to cut the hair.

[0067] Sixth embodiment The sixth embodiment will be described with reference to FIGS.

[0068] In the blower device 501 according to this embodiment, a plurality of connecting walls 105 are provided in the circumferential and radial directions of the intake passage 25. The connecting walls 105 have a first connecting point 107 that connects to the inner wall or annular wall 103 of the intake passage 25 located on the radially outer side, and a second connecting point 109 that connects to the annular wall 103 located on the radially inner side. The first connecting point 107 and the second connecting point 109 are disposed at different positions in the circumferential direction of the annular wall 103.

[0069] In addition, the same symbols are used for configurations that are similar to other embodiments, and explanations of the configurations and functions are omitted and refer to other embodiments, but since the configuration is the same as other embodiments, the effects obtained are the same.

[0070] As shown in FIG. 16 and FIG. 17, the first connecting point 107 and the second connecting point 109 of the connecting wall 105 are disposed at different positions in the circumferential direction of the annular wall 103. The circumferential position of the first connecting point 107 on the annular wall 103 is disposed so as to be approximately the midpoint between the second connecting points 109, 109 adjacent in the circumferential direction. Similarly, the circumferential position of the second connecting point 109 on the annular wall 103 is disposed so as to be approximately the midpoint between the first connecting points 107, 107 adjacent in the circumferential direction. By disposing the first connecting point 107 and the second connecting point 109 at different positions in the circumferential direction of the annular wall 103, the connecting walls 105, 105 adjacent in the radial direction are not continuous in the radial direction. For this reason, when an impact is applied from the outside, such as when the blower device 601 is dropped, the impact is dispersed by the annular wall 103, and impact resistance can be improved. In addition, by positioning the first connection point 107 and the second connection point 109 at approximately the midpoint between the circumferentially adjacent second connection points 109, 109 and the first connection points 107, 107, the dispersion points for impact can be set evenly on the annular wall 103.

[0071] In such a blower device 501, a plurality of connecting walls 105 are provided in the circumferential and radial directions of the intake passage 25. The connecting walls 105 have a first connecting point 107 that connects to the inner wall or annular wall 103 of the intake passage 25 located on the radially outer side, and a second connecting point 109 that connects to the annular wall 103 located on the radially inner side. The first connecting point 107 and the second connecting point 109 are disposed at different positions in the circumferential direction of the annular wall 103.

[0072] By arranging the first connecting point 107 and the second connecting point 109 at different positions in the circumferential direction of the annular wall 103, the connecting walls 105, 105 adjacent in the radial direction are not continuous in the radial direction. Therefore, when an impact is applied to the blower device 601 from the outside, the impact is dispersed by the annular wall 103, and the impact resistance can be improved.

[0073] (Other embodiments) The end face on the fan side located near the first connection point and the second connection point of the partition member is raised toward the fan side more than the other end face on the fan side of the partition member. The end face raised toward the fan side serves as a fulcrum for holding hair when cutting hair with the fan. Therefore, by raising the end faces located near the first connection point and the second connection point toward the fan side, the fulcrum when cutting hair becomes closer to the fan, and hair can be cut more easily by the rotation of the fan.

[0074] The connecting wall is capable of cutting hair that has gathered along the connecting wall. The side of the connecting wall that faces the direction of rotation of the fan is formed sharply, for example, so that the hair that has gathered along the connecting wall can be cut by the rotation of the fan. This makes it easier to cut hair.

[0075] The annular wall is arranged so that the radial distance between the annular wall including the central axis of the fan and the radially adjacent members can be changed. The annular wall and the connecting wall are made of, for example, an elastic material that can expand and contract. When the annular wall is arranged on the radially outer side, it expands to a large diameter and a narrow width, and the distance between the radially adjacent members is widened. At this time, the connecting wall expands to a narrow width, and the distance between the circumferentially adjacent connecting walls is widened. Therefore, when the annular wall is arranged on the radially outer side, the opening area of ​​the intake flow path is large. On the other hand, when the annular wall is arranged on the radially inner side, it contracts to a small diameter and a wide width, and the distance between the radially adjacent members is narrowed. At this time, the connecting wall contracts to a wide width, and the distance between the circumferentially adjacent connecting walls is narrowed. Therefore, when the annular wall is arranged on the radially inner side, the opening area of ​​the intake flow path is small. The blower device is provided with a variation control unit that controls the radial distance between the annular wall and the radially adjacent members. Therefore, by varying the radial distance between the annular wall and a radially adjacent member using the variation control section, it is possible to vary the opening area of ​​the intake passage.

[0076] The blower device includes a hair quality detection unit that detects the quality of the hair, so that the hair quality of the hair sucked into the suction passage can be detected.

[0077] The hair type detection unit is electrically connected to the movement control unit. The movement control unit determines whether or not the hair is likely to become entangled in the suction passage based on the hair type data detected by the hair type detection unit, and controls the radial distance between the annular wall and the radially adjacent member. Therefore, the movement control unit can change the opening area of ​​the suction passage based on the hair type.

[0078] The movement control unit has a learning function. The movement control unit has a memory unit that records, for example, the hair type, number of hairs, fan rotation speed, etc. when the hair becomes tangled and compares them with past data. Therefore, the movement control unit can predict conditions that make hair prone to tangling, and further suppress hair tangling.

[0079] The variable control unit is capable of transmitting and receiving data to and from the outside. Therefore, by transmitting data to the outside, the data of the blower can be reflected in other devices, and by receiving data from the outside, new data can be reflected in the blower.

[0080] (Additional Note) The above description of the embodiments discloses the following techniques.

[0081] (Technology 1) A blower comprising: a housing having an intake port and an exhaust port; an intake passage provided inside the housing through which air drawn in from the intake port flows; a fan provided inside the housing for drawing in air from the intake port and exhausting the air from the exhaust port; a filter disposed at the intake port; and a partition member provided inside the intake passage between the filter and the fan, wherein the partition member has a partition portion with an opening ratio relative to the opening area of ​​the intake passage of 40% to 80%.

[0082] This configuration reduces the flow resistance caused by the partition member, suppresses the decrease in the flow rate of air flowing through the intake flow path, and minimizes the decrease in air volume. In addition, the partition member prevents hair from being twisted even if it comes into contact with the fan, and hair entanglement performance can be fully demonstrated. Therefore, with this type of blower, hair entanglement performance can be fully demonstrated while minimizing the decrease in air volume.

[0083] (Technical Technique 2) The blower according to Technical Technique 1, wherein the partition portion increases an opening ratio with respect to an opening area of ​​the intake passage from a central axis of the fan toward an outer side in a radial direction.

[0084] With this configuration, the opening area of ​​the partition member is narrower on the radially inner side of the suction passage, making it difficult for hair to be sucked in by the partition member and preventing hair entanglement. On the radially outer side of the suction passage, the opening area of ​​the partition member is wider, reducing flow resistance caused by the partition member and preventing a decrease in air volume caused by the partition member.

[0085] (Technology 3) A blower device according to Technology 1 or 2, wherein the partition portion has one or more annular walls arranged radially between a central axis of the fan and an inner wall of the intake passage and formed in a ring shape, and a connecting wall connecting the annular wall and the inner wall of the intake passage.

[0086] With this configuration, the annular wall restricts the radial movement of the hair in the intake passage when the hair passes through the partition member and comes into contact with the fan, thereby preventing tangling of multiple hairs due to twisting. The connecting wall restricts the circumferential movement of the hair in the intake passage when the hair passes through the partition member and comes into contact with the fan, thereby preventing tangling of multiple hairs due to twisting. Therefore, the partition section having the annular wall and the connecting wall can more effectively prevent tangling of hair.

[0087] (Technology 4) A blower device as described in Technology 3, in which the connecting walls are provided in multiple circumferential and radial directions of the intake passage, and the multiple connecting walls located radially outward among the multiple connecting walls are set to have a wider circumferential spacing than the multiple connecting walls located radially inward.

[0088] With this configuration, the opening ratio of the intake passage can be easily adjusted by adjusting the circumferential spacing of the connecting walls.

[0089] (Technology 5) A blower device as described in Technology 3 or 4, in which the radial spacing between the annular wall and a member radially adjacent to the annular wall, including the central axis of the fan, is set wider on the radial outer side of the annular wall than on the radial inner side of the annular wall.

[0090] With this configuration, the opening ratio of the intake passage can be easily adjusted by adjusting the radial spacing of the annular walls.

[0091] (Technology 6) A blower device described in any one of Technologies 3 to 5, wherein the connecting wall has a first connection point that connects to the inner wall or the annular wall of the intake passage located radially outward, and a second connection point that connects to the annular wall located radially inward, and the first connection point is located on the opposite side of the rotation direction of the fan with respect to a straight line passing through the central axis of the fan and the second connection point.

[0092] With this configuration, by arranging the first connection point on the opposite side of the rotation direction of the fan, the radially outer side of the connection wall is inclined so as to face the rotation direction of the fan. Hair that passes over the fan and enters the inner part of the intake passage is converged to the radially inner second connection point, where the rotational force of the fan is large, along the inclination of the connection wall by the rotation of the fan. Therefore, the hair that is converged to the second connection point can be easily cut by the rotation of the fan.

[0093] (Technical Technique 7) In the blower device according to Technical Technique 6, the partition member is provided with an extension portion that extends from the vicinity of the second connection point toward the fan.

[0094] With this configuration, the extension brings the fulcrum when cutting hair closer to the fan, and the rotation of the fan makes it easier to cut hair.

[0095] (Technology 8) A blower device described in any one of Technologies 3 to 7, in which the connecting walls are provided in multiple circumferential and radial directions of the intake passage, and have a first connection point that connects to the inner wall of the intake passage or the annular wall located on the radially outer side, and a second connection point that connects to the annular wall located on the radially inner side, and the first connection point and the second connection point are located at different positions in the circumferential direction of the annular wall.

[0096] With this configuration, the first and second connection points are disposed at different positions in the circumferential direction of the annular wall, so that adjacent connection walls in the radial direction are not continuous in the radial direction. Therefore, when an external impact is applied to the blower, the impact is dispersed by the annular wall, improving the impact resistance.

[0097] (Technical Aspect 9) The blower device according to Technical Aspect 6, wherein the connecting wall has a curvature in a direction opposite to a rotation direction of the fan.

[0098] This configuration makes it easier to cut hair with the fan.

[0099] (Technology 10) A blower device described in any one of Technologies 3 to 9, wherein the connecting wall has a first connection point that connects to the inner wall or the annular wall of the suction passage located radially outward, and a second connection point that connects to the annular wall located radially inward, and the fan side end face of the partition member located near the first connection point and the second connection point is raised toward the fan side more than the other fan side end face of the partition member.

[0100] With this configuration, the end face raised toward the fan becomes a fulcrum that holds the hair when cutting the hair with the fan. Therefore, by raising the end faces located near the first and second connecting points toward the fan, the fulcrum when cutting the hair becomes closer to the fan, and the hair can be cut more easily by the rotation of the fan.

[0101] (Technical Technique 11) The air blower according to any one of Technical Techniques 3 to 10, wherein the connecting wall is capable of cutting hair gathered along the connecting wall.

[0102] With this configuration, the hair can be cut by the connecting wall, making it easier to cut the hair.

[0103] (Technology 12) A blower device according to any one of Technologies 3 to 11, wherein the annular wall is arranged so that the radial distance between the annular wall including the central axis of the fan and a radially adjacent member can be varied, and the fan is equipped with a variation control unit that controls the radial distance between the annular wall and a radially adjacent member.

[0104] With this configuration, the opening area of ​​the intake passage can be varied by varying the radial distance between the annular wall and a radially adjacent member using the variation control section.

[0105] (Technology 13) The blower device according to any one of Technologies 1 to 12, further comprising a hair quality detection unit for detecting the quality of hair.

[0106] With this configuration, the type of hair that is sucked in can be detected.

[0107] (Technology 14) A blower device as described in Technology 12, comprising a hair type detection unit that detects the type of hair, the hair type detection unit being electrically connected to the movement control unit, and the movement control unit determining whether or not the hair is likely to become tangled in the intake flow path based on the hair type data detected by the hair type detection unit, and controlling the radial distance between the annular wall and a radially adjacent member.

[0108] With this configuration, the variation control section can vary the opening area of ​​the suction passage based on the hair type.

[0109] (Technical 15) The blower according to Technical 12, wherein the variable control unit has a learning function.

[0110] With this configuration, the movement control unit can predict the conditions under which hair is likely to become tangled, and hair tangles can be further suppressed.

[0111] (Technology 16) The blower device according to Technology 12, wherein the variable control unit is capable of sending and receiving data with the outside.

[0112] With this configuration, by transmitting data to the outside, the data of the blower can be reflected in other devices, and by receiving data from the outside, new data can be reflected in the blower.

[0113] It should be noted that the above-described embodiments are intended to illustrate the technology of the present disclosure, and various modifications, substitutions, additions, omissions, and the like can be made within the scope of the claims or their equivalents.

[0114] For example, the center of the annular wall is located at the same position as the central axis of the fan, but this is not limiting, and the center of the annular wall may be located at a position eccentric to the central axis of the fan.

[0115] Furthermore, the connecting wall inclined opposite the rotation direction of the fan is inclined to have a curvature, but this is not limited thereto, and the connecting wall may be inclined so as to connect the first connecting point and the second connecting point in a straight line.

[0116] Furthermore, the connecting walls in which the first and second connecting points are located at different positions in the circumferential direction of the annular wall are inclined in the direction of rotation of the fan, but this is not limited thereto. For example, even in the case of connecting walls that extend radially from the central axis of the fan, like the connecting walls in the third and fourth embodiments, the first and second connecting points of radially adjacent connecting walls may be made to differ in the circumferential direction of the annular wall.

[0117] Furthermore, the shape of the partition wall is not limited to the above, and may be any shape, such as a honeycomb shape. [Industrial Applicability]

[0118] The present disclosure is applicable to devices that suction air and thus pose a risk of hair getting caught in them, such as hair dryers, electric fans, and vacuum cleaners. [Explanation of symbols]

[0119] 1,101,201,301,401,501 Blower 3. Housing 5 Fan 7 Filters 9 Partition members 21 Intake port 23 Discharge port 25 Suction channel 43 Bulkhead section 103 Circular Wall 105 Connecting wall 107 1st connection point 109 Second connection point 403 Extension A Rotation direction L straight line

Claims

1. a housing having an inlet and an outlet; an intake passage provided inside the housing through which air drawn in from the intake port flows; a fan provided inside the housing, the fan sucking air through the inlet and discharging the air through the outlet; A filter disposed at the inlet; a partition member provided inside the intake passage and disposed between the filter and the fan; Equipped with The partition member has a partition portion with an opening ratio of 40% to 80% of the opening area of ​​the intake passage.

2. The blower device according to claim 1 , wherein the partition portion has an opening ratio with respect to an opening area of ​​the intake passage that increases radially outward from a central axis of the fan.

3. The blower device according to claim 1 or 2, wherein the partition portion has one or more annular walls arranged radially between a central axis of the fan and an inner wall of the intake passage and formed in a ring shape, and a connecting wall connecting the annular wall and the inner wall of the intake passage.

4. The connecting wall is provided in a plurality of directions, circumferentially and radially, of the intake passage, The blower device according to claim 3 , wherein the connecting walls located radially outward are spaced apart from one another in a circumferential direction by a greater distance than the connecting walls located radially inward.

5. The blower device according to claim 3, wherein the radial spacing between the annular wall and a member radially adjacent to the annular wall including the central axis of the fan is set wider on the radial outer side of the annular wall than on the radial inner side of the annular wall.

6. The connecting wall has a first connecting point that is connected to an inner wall of the intake passage or the annular wall located on a radially outer side, and a second connecting point that is connected to the annular wall located on a radially inner side, The blower device according to claim 3 , wherein the first connection point is disposed on an opposite side of a line passing through a central axis of the fan and the second connection point in a rotation direction of the fan.

7. The blower device according to claim 6 , wherein the partition member is provided with an extension portion extending from a vicinity of the second connection point toward the fan.

8. The connecting wall is provided in a plurality of positions in the circumferential and radial directions of the intake passage, and has a first connecting point that connects to an inner wall of the intake passage or the annular wall located on a radially outer side, and a second connecting point that connects to the annular wall located on a radially inner side, The blower device according to claim 3 , wherein the first connection point and the second connection point are disposed at different positions in a circumferential direction of the annular wall.

Images