Fan device and blower device

Abstract

To provide a fan device in which countermeasures have been taken against heat generated in a motor, and to provide a blower device.SOLUTION: A fan device 4 includes a motor 42, a rotating body 41, and an agitating body 45. The rotating body 41 generates an airflow rotationally driven by the motor 42. The agitating body 45 is arranged in the periphery of a rotary shaft 421 of the motor 42 on an opposing surface against the motor 42 of the rotating body 41, and agitates the air around the motor 42 when the rotating body 41 rotates.SELECTED DRAWING: Figure 24

Description

[Technical Field]

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

[0002] As related art, there is known a blower (air purifier) ​​that includes a main body case having an air intake port and an air outlet, and air purifying means, air blowing means, control means, and an operation unit that are provided within the main body case (see, for example, Patent Document 1). In the blower according to the related art, the main body case has a vertically long rectangular box shape, and includes an air intake port at the bottom of the front surface of the main body case, and a horizontally long rectangular air outlet (air outlet) on the top surface (top face) of the main body case.

[0003] The blower is located in the air passage between the air purifier and the air outlet of the main body case, and includes a casing, a motor, and a rotating body (fan). A centrifugal blower type rotating body is fixed to the horizontally extending shaft of the motor. When the rotating body is rotated by the motor, air is drawn into the main body case through the air intake, and is then blown out to the air outlet via the air purifier and the blower. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-183802 Summary of the Invention [Problem to be solved by the invention]

[0005] In the configuration of the related art described above, the motor drives the rotating body inside the main body case, so that, for example, during long periods of continuous use, heat generated by the motor may build up inside the main body case.

[0006] An object of the present disclosure is to provide a fan device and an air blower device that have measures in place to deal with heat generated by a motor. [Means for solving the problem]

[0007] According to one aspect of the present disclosure, there is provided a fan device including a motor, a rotor, and an agitator. The rotor is rotationally driven by the motor to generate an airflow. The agitator is disposed around the rotation axis of the motor on a surface of the rotor facing the motor, and agitates the air around the motor when the rotor rotates.

[0008] A blower device according to one aspect of the present disclosure includes the fan device. [Effects of the Invention]

[0009] According to the present disclosure, it is possible to provide a fan device and an air blower device in which measures are taken to deal with heat generated by a motor. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic perspective view of a blower according to a first embodiment, as viewed from the right front. [Figure 2] FIG. 2 is a schematic exploded perspective view of the blower according to the first embodiment. [Figure 3] FIG. 3 is a schematic exploded perspective view of the inside of the blower according to the first embodiment. [Figure 4] FIG. 4 is a schematic right side view of the blower according to the first embodiment. [Figure 5] FIG. 5 is a schematic perspective view showing the blower according to the first embodiment, taken along the line A1-A1 in FIG. [Figure 6] FIG. 6 is a schematic perspective view showing a main part of the blower according to the first embodiment, as viewed from the right front. [Figure 7] FIG. 7 is a schematic perspective view showing the attachment / detachment structure of the side wall panel of the air blower according to the first embodiment, as viewed from the right front. [Figure 8] FIG. 8 is a schematic perspective view showing the attachment / detachment structure of the side wall panel of the air blower according to the first embodiment, as viewed from the left rear. [Figure 9]FIG. 9 is a schematic perspective view showing the attachment / detachment structure of the side wall panel of the air blower according to the first embodiment, as viewed from the right front. [Figure 10] 10 is a schematic front view showing the detachable structure of the side wall panel of the air blower according to the first embodiment, taken along the line A1-A1 in FIG. [Figure 11] 11 is a schematic perspective view showing the blower according to the first embodiment, taken along the line A2-A2 in FIG. [Figure 12] 12 is a schematic rear view of the blower according to the first embodiment, taken along line A2-A2 in FIG. 4. FIG. [Figure 13] 13 is a schematic perspective view showing the blower according to the first embodiment, taken along the line A3-A3 in FIG. 4. As shown in FIG. [Figure 14] 14 is a schematic front view of the blower according to the first embodiment, taken along line A3-A3 in FIG. 4. As shown in FIG. [Figure 15] 15 is a schematic right side view of the blower according to the first embodiment, taken along line A1-A1 in FIG. [Figure 16] 16 is a schematic rear view showing a main part of the blower according to the first embodiment, taken along line A4-A4 in FIG. 4. FIG. [Figure 17] 17 is a schematic rear view showing a main part of the blower according to the first embodiment, taken along line A4-A4 in FIG. 4. FIG. [Figure 18] FIG. 18 is a schematic exploded perspective view showing the structure of the fan device of the air blower according to the first embodiment, as viewed from the right front. [Figure 19] FIG. 19 is a schematic exploded perspective view showing the structure of the fan device of the air blower according to the first embodiment, as viewed from the left front. [Figure 20] FIG. 20 is a schematic exploded perspective view showing the structure of the fan device of the air blower according to the first embodiment, as viewed from the left front. [Figure 21] FIG. 21 is a schematic perspective view showing the structure of the fan device of the blower according to the first embodiment, as viewed from the left front. [Figure 22]FIG. 22 is a schematic exploded perspective view showing the structure of the fan device of the blower according to the first embodiment, as viewed from the right front. [Figure 23] FIG. 23 is a schematic right side view showing the structure of the fan device of the blower according to the first embodiment. [Figure 24] 24 is a schematic front view of the blower according to the first embodiment, taken along line A3-A3 in FIG. 4. As shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. The following embodiments are examples of specific embodiments of the present disclosure and are not intended to limit the technical scope of the present disclosure.

[0012] (Embodiment 1) [1] Overall structure First, the overall configuration of the blower 100 according to this embodiment will be described with reference to Figures 1 to 5. Figure 5 is a schematic perspective view of the blower 100 cut along the cross section A1-A1 in Figure 1. However, in Figure 5, hatching of the cut surface is omitted.

[0013] In this embodiment, for ease of explanation, the vertical direction when the fan device 100 is in a usable state is defined as the up-down direction D1. Furthermore, the left-right direction D2 is defined based on the direction when the fan device 100 is viewed from the front, and the front side of the fan device 100 is defined as the front and the back side is defined as the rear, defining the front-to-back direction D3. However, these directions are not intended to limit the use direction of the fan device 100 (the direction during use).

[0014] 1, the fan device 100 is used while placed on an installation surface X1, which may be, for example, the floor of a room in a house. When placed on the installation surface X1, the fan device 100 stands on its own on the installation surface X1. In other words, the fan device 100 according to this embodiment is a freestanding and portable device, and the user can freely carry the fan device 100 and install it at any position on the installation surface X1.

[0015] 1 and 2, the air blower 100 includes a main body 1, a pair of filters 21 and 22 that are removably attached to the main body 1, and a pair of pre-filters 23 and 24. The main body 1 includes a case 10, four side wall panels 31 to 34, a fan unit 4 (see FIG. 3), an operation unit 5, a discharge device 6 (see FIG. 3), and a circuit unit 7. The main body 1 also includes a pair of air intakes 81 and 82 and an air outlet 83.

[0016] In this embodiment, as an example, the main body 1 has a substantially rectangular parallelepiped shape (quadrature) having a length in the up-down direction D1. The main body 1 can have various shapes, and may be, for example, a polygonal prism shape, a cylindrical shape, or the like, in addition to the rectangular parallelepiped shape.

[0017] Case 10 has a first case 11 and a second case 12 that constitute fan case 15, a first cabinet 13, a second cabinet 14, a top panel 16, and a bottom panel 17. In this embodiment, unless otherwise specified, the components of case 10 (fan case 15, first cabinet 13, second cabinet 14, top panel 16, bottom panel 17, etc.) are made of resin.

[0018] As shown in Figure 3, fan case 15, which is made up of first case 11 and second case 12, houses fan device 4 and discharge device 6. In this embodiment, as an example, fan case 15 has a spiral shape when viewed from the side. Fan case 15 has a pair of inlets 151, 152 that open toward both sides in the left-right direction D2, and an outlet 153 (see Figure 2) that opens upward. Each of the pair of inlets 151, 152 is formed in a mesh shape.

[0019] An air passage 84 for passing airflow is formed within fan case 15, and fan device 4 and discharge device 6 are disposed within air passage 84. Air passage 84 is configured to connect a pair of air inlets 151, 152 and an outlet 153. When fan device 4 is driven, air is taken into fan case 15 through the pair of air inlets 151, 152, and the taken-in air passes through air passage 84 and is blown out from outlet 153. In other words, the pair of air inlets 151, 152 form an opening on the upstream side of air passage 84, and outlet 153 forms an opening on the downstream side of air passage 84.

[0020] Fan case 15 is divided into two in the left-right direction D2, with the left portion constituting first case 11 and the right portion constituting second case 12. Fan case 15 is formed by joining first case 11 and second case 12 together using fasteners such as screws while first case 11 and second case 12 are butted together in the left-right direction D2.

[0021] The first cabinet 13 and the second cabinet 14 are components arranged on both sides of the fan case 15 in the left-right direction D2. In other words, the fan case 15 is arranged between the first cabinet 13 and the second cabinet 14 in the left-right direction D2 so as to be sandwiched between them. The first cabinet 13 is arranged on the left side of the fan case 15 (first case 11) and is coupled to the fan case 15 (first case 11) using fasteners such as screws. The second cabinet 14 is arranged on the right side of the fan case 15 (second case 12) and is coupled to the fan case 15 (second case 12) using fasteners such as screws.

[0022] The first cabinet 13 and the second cabinet 14 constitute both sides (left side and right side) of the case 10 in the left-right direction D2. Here, filter mounting sections 18 are formed on both sides of the case 10 in the left-right direction D2, to which filters 21, 22 are removably attached. The filter mounting sections 18 are formed as recesses that open outward in the left-right direction D2. That is, the first cabinet 13 that constitutes the left side of the case 10 has the filter mounting section 18 formed as a recess that opens leftward. The second cabinet 14 that constitutes the right side of the case 10 has the filter mounting section 18 formed as a recess that opens rightward. In this embodiment, the filter mounting section 18 opens in a rectangular shape having a length in the up-down direction D1.

[0023] A circular hole 131 penetrating the first cabinet 13 in the left-right direction D2 is formed in the bottom surface of the filter mounting section 18 in the first cabinet 13. A circular hole 141 penetrating the second cabinet 14 in the left-right direction D2 is formed in the bottom surface of the filter mounting section 18 in the second cabinet 14.

[0024] When the first cabinet 13 and the second cabinet 14 are combined with the fan case 15, the air inlet 151 of the first case 11 is exposed to the left through the round hole 131, and the air inlet 152 of the second case 12 is exposed to the right through the round hole 141. This allows the fan case 15 to take in air from both sides in the left-right direction D2 through the pair of air inlets 151, 152.

[0025] Top panel 16 is a panel-like member disposed above fan case 15. Top panel 16 constitutes upper surface 101 of case 10. Top panel 16 has air outlet 83 that blows airflow upward. Air outlet 83 is a hole that penetrates top panel 16 in vertical direction D1, and is disposed in a position opposite exhaust port 153 of fan case 15.

[0026] As a result, the air outlet 83 communicates with the exhaust port 153, and the air blown out from the exhaust port 153 of the fan case 15 is blown out from the main body 1 through the air outlet 83 of the top panel 16. In this embodiment, as an example, the air outlet 83 is formed on the top surface 101 of the case 10 (main body 1) from the center in the front-to-rear direction D3 to the rear end. The air outlet 83 is provided with a plurality of louvers that control the blowing direction of the airflow diagonally rearward.

[0027] The bottom panel 17 is a panel-like member disposed below the fan case 15. The bottom panel 17 constitutes the lower surface of the case 10. The bottom panel 17 is a member that serves as the base of the main body 1, and comes into contact with the installation surface X1 when the blower 100 is installed on the installation surface X1.

[0028] The top panel 16 and the bottom panel 17 both have a rectangular shape in a plan view. In this embodiment, in particular, the top panel 16 and the bottom panel 17 both have a substantially square shape in a plan view. The top panel 16 is joined to the first cabinet 13 and the second cabinet 14 using fasteners such as screws. The bottom panel 17 is joined to the first cabinet 13 and the second cabinet 14 using fasteners such as screws.

[0029] Each of the pair of filters 21, 22 is, for example, a dust collection filter or a deodorizing filter. The dust collection filter can capture dust, pollen, smoke, and fine particulate matter (PM2.5, for example). The deodorizing filter can remove odors from the air. In this embodiment, the pair of filters 21, 22 each have a substantially rectangular parallelepiped shape with a thickness in the left-right direction D2 and a length in the up-down direction D1, and are attached to the main body 1 from both sides in the left-right direction D2. Specifically, the filter 21 is attached so as to be fitted from the left into the filter mounting portion 18 of the first cabinet 13, which constitutes the left side of the case 10. The filter 22 is attached so as to be fitted from the right into the filter mounting portion 18 of the second cabinet 14, which constitutes the right side of the case 10.

[0030] Each of the pair of pre-filters 23, 24 is, for example, a mesh filter. Mesh filters are capable of capturing relatively large particles of dust and the like in the air. In this embodiment, the pair of pre-filters 23, 24 each have a substantially rectangular plate shape having a thickness in the left-right direction D2 and a length in the up-down direction D1, and are attached to the main body 1 from both sides in the left-right direction D2. Specifically, the pre-filter 23 is disposed outside (left side) the filter 21 and is attached to the first cabinet 13 constituting the left side surface of the case 10 by a connecting means such as a snap fit. The pre-filter 24 is disposed outside (right side) the filter 22 and is attached to the second cabinet 14 constituting the right side surface of the case 10 by a connecting means such as a snap fit.

[0031] As a result, with the pair of pre-filters 23, 24 attached to the case 10 (main body 1), the pair of filters 21, 22 are held within the filter arrangement portion 18. In other words, the pair of pre-filters 23, 24 also serve as covers for the pair of filters 21, 22 housed in the filter arrangement portion 18, and prevent the pair of filters 21, 22 from falling off from the filter arrangement portion 18.

[0032] The four side wall panels 31 to 34 are attached to the case 10 so as to surround the front, back, left, and right of the case 10. Here, the side wall panels 31 and 32 are attached to both sides of the case 10 in the left-right direction D2, and the side wall panels 33 and 34 are attached to both sides of the case 10 in the front-back direction D3. In this way, by attaching the four side wall panels 31 to 34 to the case 10, the outer shell of the main body 1 is formed, and in this embodiment, the main body 1 has a substantially rectangular parallelepiped shape.

[0033] The side wall panel 31 is a left side wall panel facing leftward, and is formed in a generally rectangular plate shape having a length in the up-down direction D1 when viewed from the left side. The side wall panel 31 is disposed outside (on the left side) of the prefilter 23, and is attached to the first cabinet 13 from the left by a connecting means such as a snap fit. The side wall panel 32 is a right side wall panel facing rightward, and is formed in a generally rectangular plate shape having a length in the up-down direction D1 when viewed from the right side. The side wall panel 32 is disposed outside (on the right side) of the prefilter 24, and is attached to the second cabinet 14 from the right by a connecting means such as a snap fit.

[0034] As a result, when the side wall panel 31 is attached to the case 10 (first cabinet 13), the filter 21 and the pre-filter 23 are covered by the side wall panel 31. Similarly, when the side wall panel 32 is attached to the case 10 (second cabinet 14), the filter 22 and the pre-filter 24 are covered by the side wall panel 32.

[0035] Therefore, when performing maintenance (including replacement and cleaning) on ​​the filter 21 and / or the pre-filter 23, it is necessary to remove the side wall panel 31 from the case 10. Similarly, when performing maintenance on the filter 22 and / or the pre-filter 24, it is necessary to remove the side wall panel 32 from the case 10. Therefore, the side wall panels 31, 32 are attached to the case 10 in a state that allows them to be removed from the case 10 relatively easily without using any tools (jigs). The detachable structure of the side wall panels 31, 32 will be explained in detail in the section "[2] Details of the external structure."

[0036] The side wall panel 33 is a front panel facing forward, and is formed in a generally rectangular plate shape having a length in the up-down direction D1 when viewed from the front. The side wall panel 33 is attached to the first cabinet 13 and the second cabinet 14 from the front by a fastening means such as a snap fit. The side wall panel 34 is a back panel facing rear, and is formed in a generally rectangular plate shape having a length in the up-down direction D1 when viewed from the rear. The side wall panel 34 is attached to the first cabinet 13 and the second cabinet 14 from the rear by a fastening means such as a snap fit.

[0037] The side wall panel 31 also has an air intake 81 for taking in air. The air intake 81 is a hole that penetrates the side wall panel 31 in the left-right direction D2 and is located at a position facing the pre-filter 23. Similarly, the side wall panel 32 has an air intake 82 for taking in air. The air intake 82 is a hole that penetrates the side wall panel 32 in the left-right direction D2 and is located at a position facing the pre-filter 24.

[0038] As a result, the air intake port 81 communicates with the inlet 151, and air drawn into the main body 1 through the air intake port 81 passes through the pre-filter 23 and the filter 21 before being taken into the fan case 15 from the inlet 151. Similarly, the air intake port 82 communicates with the inlet 152, and air drawn into the main body 1 through the air intake port 82 passes through the pre-filter 24 and the filter 22 before being taken into the fan case 15 from the inlet 152. In this embodiment, as an example, the air intake ports 81, 82 are formed on substantially the entire surfaces of the side wall panels 31, 32 so that as much air as possible is drawn into the main body 1. The air intake ports 81, 82 are provided with lattices, and the opening areas of the air intake ports 81, 82 are set to be large enough to prevent a user's fingers from getting inside.

[0039] The fan device 4 is an example of an airflow generating device that generates an airflow. In this embodiment, the fan device 4 is disposed between a pair of inlets 151, 152 in the fan case 15. In this embodiment, as an example, the fan device 4 is a double-suction centrifugal fan. Therefore, the fan device 4 generates an airflow by sending air taken in through the pair of inlets 151, 152 into an air passage 84 formed in the fan case 15. In other words, the fan device 4 is provided at the end (upstream end) of the air passage 84 opposite the outlet 153, and generates an airflow (wind) that passes through the air passage 84 and is blown out from the outlet 83.

[0040] The discharge device 6 has a first discharge electrode, a second discharge electrode, and an induction electrode. When a voltage (high voltage) is applied between the first and second discharge electrodes and the induction electrode, the discharge device 6 generates positive ions and negative ions as discharge products by generating discharges between the first and second discharge electrodes and the induction electrode.

[0041] The discharge device 6 is disposed in an air passage 84 inside the fan case 15. Specifically, the discharge device 6 is attached to the fan case 15 so that at least the first discharge electrode and the second discharge electrode are exposed inside the air passage 84 and downstream of the fan device 4 (toward the exhaust port 153). As a result, discharge products (positive ions and negative ions) generated by the discharge device 6 are carried by the air current passing through the air passage 84 and are released outside the main body 1 from the air outlet 83.

[0042] The operation unit 5 is disposed on the top surface 101 of the top panel 16 of the main body 1 (case 10). The operation unit 5 includes a plurality of buttons that can each be pressed by a user. In the present embodiment, as an example, the operation unit 5 is formed on the front end of the top surface 101 of the case 10 (main body 1). The operation unit 5 is configured to be able to accept operations such as starting and stopping the operation of the blower 100, switching the air volume of the blower 100 between "weak," "medium," "strong," and "automatic," and setting a timer, etc.

[0043] The circuit unit 7 has a configuration in which various electric elements (electronic components) are mounted on a circuit board (printed wiring board). The circuit unit 7 includes, for example, a control unit, a power supply unit, and switches of the operation unit 5. The (control unit of) the circuit unit 7 is electrically connected to the fan device 4, the discharge device 6, and the like. The control unit is mainly composed of a computer system having one or more processors such as a CPU (Central Processing Unit) and one or more memories such as a ROM (Read Only Memory) and a RAM (Random Access Memory), and performs various processes (information processing). The control unit controls each part of the air blower device 100 in response to the operation of the operation unit 5. Furthermore, as shown in FIG. 3, the circuit unit 7 includes various sensors such as a humidity sensor 71, a temperature sensor 72 (see FIG. 11), and an odor sensor 73 (see FIG. 11).

[0044] The circuit unit 7 is disposed below the top panel 16 and above the fan case 15. That is, the circuit unit 7 is disposed between the top panel 16 and the fan case 15 in the up-down direction D1. In this embodiment, as an example, the circuit unit 7 is disposed at the front end of the case 10 (main body 1).

[0045] Furthermore, as shown in FIG. 3, the main body 1 includes a dust sensor 74, a filter element 75, a connector 76, and the like.

[0046] The dust sensor 74 is a sensor that detects the degree of contamination of the air, and is electrically connected to the circuit unit 7. As an example in this embodiment, the dust sensor 74 is held in the second case 12. The filter element 75 is disposed in the air intake path of the dust sensor 74. That is, air that has passed through the filter element 75 is taken in by the dust sensor 74. As an example in this embodiment, the filter element 75 is held above the filter mounting portion 18 in the second cabinet 14.

[0047] The connector 76 is an electrical component to which a cable or the like can be connected. In this embodiment, as an example, the connector 76 is a power connector to which a power cable 77 of a power adapter can be connected. The connector 76 is held at the lower end of the fan case 15 and is exposed to the rear through a connector hole 174 (see FIG. 2) in the bottom panel 17.

[0048] 4, the fan device 100 is used with the power cable 77 of the power adapter inserted into the bottom panel 17 from the rear. Here, the peripheral surface of the bottom panel 17 is inclined diagonally downward, and the lower surface of the bottom panel 17 is slightly smaller than the upper surface 101 of the top panel 16. Therefore, when the fan device 100 is installed on the installation surface X1, the lower ends of the four side wall panels 31 to 34 that make up the outer peripheral surface of the main body 1 are spaced above the installation surface X1, giving the appearance that the main body 1 is floating above the installation surface X1.

[0049] As described above, the blower device 100 according to this embodiment includes the main body 1 and the filters 21 and 22. The main body 1 includes the fan device 4, the air intakes 81 and 82, and the air outlet 83. As a result, when the fan device 4 is operating, air taken into the main body 1 through the air intakes 81 and 82 passes through the filters 21 and 22 and the air passage 84 in the fan case 15, and is blown out of the main body 1 as an airflow (wind) from the air outlet 83, as shown in FIG. 5 . In other words, the blower device 100 according to this embodiment constitutes an "air purifier" that performs air purification, such as dust collection and / or deodorization, using at least the filters 21 and 22.

[0050] Here, the blower device 100 according to this embodiment further includes a discharge device 6 arranged at a position facing the air passage 84 inside the fan case 15. As a result, when the fan device 4 and the discharge device 6 are operating, the air blown out from the air outlet 83 through the air passage 84 contains discharge products (positive ions and negative ions) generated by the discharge device 6.

[0051] [2] Details of the exterior structure Next, the external structure of the blower 100 according to this embodiment will be described in detail with reference to FIGS.

[0052] Fig. 10 is a schematic cross-sectional view of the blower device 100 taken along the line A1-A1 in Fig. 4, illustrating the procedure for attaching the side wall panel 32. However, hatching of the broken surface is omitted in Fig. 10.

[0053] As shown in Fig. 6, the blower 100 according to this embodiment includes a main body 1 having an air outlet 83 for blowing out an airflow. The air outlet 83 is disposed on an upper surface 101 of the main body 1. Here, a frame portion 30 that protrudes upward is provided on the outer periphery of the upper surface 101 of the main body 1. The frame portion 30 is located above the height of the upper surface 101 indicated by the imaginary line (two-dot chain line) in Fig. 6.

[0054] That is, the main body 1 has a shape in which the outer periphery of the top surface 101 (of the top panel 16) rises as the frame portion 30. In other words, in a plan view, the portion surrounded by the frame portion 30 constitutes the top surface 101 of the main body 1. In this embodiment, the frame portion 30 rises along the entire periphery of the top surface 101 of the main body 1, and the entire periphery of the top surface 101 of the main body 1 is surrounded by the frame portion 30.

[0055] In the air blower according to the related art, the air outlet is formed on the top surface of the main body case. Therefore, if an object is placed on the main body case, the object may block the air outlet, preventing air from being blown through the air outlet. In contrast, the air blower 100 according to the present embodiment has a frame portion 30 that protrudes upward from the outer periphery of the top surface 101 of the main body 1, where the air outlet 83 is formed. Therefore, even if an object is placed on the main body 1, a gap is easily maintained between the object and the top surface 101. In other words, when the object rests on the frame portion 30, a gap is maintained between the top surface 101 of the main body 1, where the air outlet 83 is formed, and the object. As a result, it is possible to provide an air blower 100 in which the air blowing from the air outlet 83 is less likely to be obstructed.

[0056] Furthermore, the amount of protrusion of frame portion 30 from top surface 101 (of main body 1) is uniform over the entire circumference. In other words, the upper end positions of frame portion 30 are consistent over the entire circumference of top surface 101 of main body 1. This configuration makes it easy to ensure a gap between an object placed on main body 1 and top surface 101, regardless of how the object is placed (the posture) of the object.

[0057] Moreover, the main body 1 further has an operation unit 5 arranged on the top surface 101. That is, as described above, the operation unit 5 that accepts user operations is arranged on the top surface 101 of the top panel 16 of the main body 1 (case 10). With this configuration, even if an object is placed on the main body 1, the frame portion 30 ensures a gap between the object and the top surface 101, making it less likely that the object will cause an erroneous operation of the operation unit 5.

[0058] In this embodiment, the frame portion 30 has a rectangular shape in a plan view. More specifically, since the top panel 16 itself has a substantially square shape in a plan view, the frame portion 30 also has a substantially square shape in a plan view. With this configuration, the four sides of the upper surface 101 are raised at the frame portion 30, making it easy to ensure a gap between an object placed on the main body 1 and the upper surface 101 regardless of the placement (posture) of the object.

[0059] Furthermore, at least a portion of the frame portion 30 is integrated with at least one of the side wall panels 31 to 34 on the front, rear, left, or right sides of the main body 1. In this embodiment, as an example, the left side of the frame portion 30 is integrated with the left side wall panel 31 of the main body 1, the right side of the frame portion 30 is integrated with the right side wall panel 32 of the main body 1, the front side of the frame portion 30 is integrated with the front side wall panel 33 of the main body 1, and the rear side of the frame portion 30 is integrated with the rear side wall panel 34 of the main body 1. In other words, the four sides of the frame portion 30 are seamlessly and continuously integrated with the four side wall panels 31 to 34, respectively.

[0060] According to this configuration, the frame portion 30 can be realized simply by protruding the upper ends of the side wall panels 31 to 34 from the upper surface 101 of the main body 1. This allows the design of the main body 1, including the frame portion 30, to be seamless when viewed from the side.

[0061] As described above, when performing maintenance on the filters 21, 22 and / or the pre-filters 23, 24, it is necessary to remove the side wall panels 31, 32 from the case 10. Therefore, of the side wall panels 31 to 34, the side wall panels 31, 32 located on both sides in the left-right direction D2 are attached to the case 10 in a state that allows them to be removed from the case 10 relatively easily without using any tools (jigs).

[0062] The following describes the detachable structure of the side wall panels 31 and 32. However, since the detachable structure is the same for the side wall panels 31 and 32, only the detachable structure of the side wall panel 32 will be described here, and the description of the other side wall panel 31 will be omitted.

[0063] 7 to 9, the side wall panel 32 is attached to the case 10 with its upper end hooked on the first hook portion 102. The first hook portion 102 protrudes from the case 10 including the upper surface 101 of the main body 1. With this configuration, when attaching the side wall panel 32, the side wall panel 32 can be temporarily hooked on the first hook portion 102, which makes it easy to align the side wall panel 32 and attach the side wall panel 32.

[0064] Specifically, the first hook portions 102 are configured to protrude outward (to the left or right) from both side surfaces (left or right side surfaces) in the left-right direction D2 of the top panel 16 of the case 10 and extend upward so that their upper ends protrude from the top surface 101. In this embodiment, as an example, the main body 1 has a total of six first hook portions 102: three on the left side for attaching the side wall panel 31 and three on the right side for attaching the side wall panel 32.

[0065] The side wall panel 32 has a second hook portion 103 at its upper end, and is attached to the case 10 with this second hook portion 103 hooked from above onto the first hook portion 102 of the case 10. In this embodiment, as shown in Figures 7 and 8, a bag-shaped second hook portion 103 that is open downward is disposed at the upper end of the back surface (left side surface) of the side wall panel 32. The second hook portion 103 is hooked onto the first hook portion 102 from above so that the first hook portion 102 is inserted into the second hook portion 103 from below.

[0066] Here, the side wall panel 32 is supported rotatably around the first hook portion 102 as a fulcrum in a direction that changes the distance between the lower end portion and the case 10. In other words, as shown in Figures 9 and 10, when the upper end portion (second hook portion 103) of the side wall panel 32 is hooked on the first hook portion 102, the side wall panel 32 can rotate around the upper edge (first hook portion 102) as a fulcrum.

[0067] Therefore, when attaching the side wall panel 32, first, the upper end portion (second hook portion 103) of the side wall panel 32 is hooked onto the first hook portion 102 of the case 10, as shown on the left side of Fig. 10. In this state, the side wall panel 32 can be attached by rotating the side wall panel 32 around the first hook portion 102 as a fulcrum in a direction that brings the lower end portion of the side wall panel 32 closer to the case 10, as shown on the right side of Fig. 10. Conversely, when removing the side wall panel 32, the side wall panel 32 can be removed by rotating the side wall panel 32 around the first hook portion 102 as a fulcrum in a direction that pulls the lower end portion of the side wall panel 32 away from the case 10.

[0068] More specifically, the side wall panel 32 has (a pair of) claws 104 at the lower end of the back surface (left side surface). The lower end of the side wall panel 32 is snap-fitted to the second cabinet 14 by inserting the claws 104 into the second cabinet 14. Therefore, when removing the side wall panel 32, the user holds the lower end of the side wall panel 32 and pulls the lower end of the side wall panel 32 away from the case 10, thereby releasing the snap-fit ​​connection and allowing the side wall panel 32 to be removed.

[0069] According to this configuration, even if a force acts on the upper end of the side wall panel 32 in a direction that pulls the side wall panel 32 away from the case 10, the side wall panel 32 will not come off because the side wall panel 32 is hooked on the first hook portion 102. This has the advantage of making it easier to avoid situations in which the side wall panel 32 comes off unintentionally by the user.

[0070] The side wall panel 32 also has a position restricting portion 105 that clamps a portion of the case 10 from both sides in the up-down direction D1. Specifically, a cutout that is open inward (left side) in the left-right direction D2 is formed at both ends in the front-to-rear direction D3 at the upper end of the side wall panel 32, and the periphery of the cutout constitutes the position restricting portion 105. When the side wall panel 32 is attached to the case 10, the position restricting portion 105 clamps the right end of the top panel 16 of the case 10 and clamps the top panel 16 from both sides in the up-down direction D1.

[0071] As a result, when the side wall panel 32 is attached to the case 10, movement of the side wall panel 32 in the up-down direction D1 is restricted, and therefore, it is possible to prevent the side wall panel 32 from moving upward and becoming detached from the first hook portion 102. This has the advantage of making it easier to avoid a situation in which the side wall panel 32 becomes detached unintentionally by the user.

[0072] 8, the main body 1 has a pair of handles 171 arranged on the outer periphery of the lower surface, facing each other. Specifically, the pair of handles 171 are arranged at both ends of the lower surface of the bottom panel 17 in the front-to-rear direction D3, facing each other in the front-to-rear direction D3. This allows the user to lift the main body 1 of the blower device 100 stably by holding the pair of handles 171 arranged on the lower surface of the main body 1.

[0073] Here, each of the pair of handle portions 171 is formed as a recess that opens downward on the underside (of main body 1). In other words, each of the pair of handle portions 171 has a recessed shape in which the underside of bottom panel 17 is partially recessed upward. This makes it easier for the user to hook their fingers on the pair of handle portions 171 arranged on the underside of main body 1 when lifting main body 1 of blower device 100, allowing the user to lift main body 1 more stably. In other words, when holding the underside (bottom) of main body 1, the user is holding a position lower than the center of gravity of main body 1, which can easily become unstable; however, handle portions 171 with such a recessed shape allow the user to grip it firmly, thereby improving the sense of instability.

[0074] In particular, in this embodiment, the side wall panels 31, 32, which are located on both sides in the left-right direction D2, among the side wall panels 31 to 34, are attached to the case 10 in a state where they can be relatively easily removed from the case 10. Therefore, the pair of handles 171 are arranged at both ends in the front-rear direction D3, rather than at both ends in the left-right direction D2 where the side wall panels 31, 32 are located. This has the advantage of preventing the user from accidentally hooking their fingers on the lower ends of the side wall panels 31, 32 when holding the pair of handles 171, making it easier to avoid a situation where the side wall panel 32 comes off unintentionally by the user.

[0075] Furthermore, a pair of guard portions 172 that cover at least a portion of the lower ends of the side wall panels 31, 32 are arranged on both ends in the left-right direction D2 where the side wall panels 31, 32 are located on the underside of the case 10. By having the pair of guard portions 172 cover at least a portion of the lower ends of the side wall panels 31, 32, it is possible to more effectively prevent the user from accidentally hooking their fingers on the lower ends of the side wall panels 31, 32, which has the advantage of making it easier to avoid a situation where the side wall panel 32 comes off unintentionally by the user.

[0076] Furthermore, in this embodiment, main body 1 has air passage 84 through which airflow passes, and each of the pair of handle portions 171 is disposed adjacent to a curved portion of air passage 84. Specifically, as shown in FIG. 5 , fan case 15, which forms air passage 84, is disposed in a space surrounded by bottom panel 17 and side wall panels 33, 34 on both sides in the front-to-rear direction D3. Because air passage 84 within fan case 15 has a curved spiral shape in a side view, dead space is generated below fan case 15 at both ends in the front-to-rear direction D3. Therefore, by disposing the pair of handle portions 171 in this dead space, this dead space can be used effectively.

[0077] 8, a connector 76 is disposed on at least one of the pair of handle portions 171. In the present embodiment, as an example, of the pair of handle portions 171 aligned in the front-rear direction D3, the connector 76 is disposed so as to be exposed inside the rear handle portion 171. Therefore, the handle portion 171 can ensure a space between the bottom surface of the main body 1 and the installation surface X1 for the power cable 77 connected to the connector 76 to escape.

[0078] [3] Liquid countermeasures Next, the external structure of the blower 100 according to this embodiment will be described in detail with reference to FIGS.

[0079] Figures 11 and 12 are schematic cross-sectional views of blower device 100 taken along line A2-A2 in Figure 4. Figures 13 and 14 are schematic cross-sectional views of blower device 100 taken along line A3-A3 in Figure 4. Figure 15 is a schematic cross-sectional view of blower device 100 taken along line A1-A1 in Figure 1. However, in these drawings (except for the inside of the balloons in Figures 11 and 13), hatching of the broken surfaces has been omitted.

[0080] The blower 100 according to this embodiment includes a case 10 that houses, in an internal space, internal components made up of at least one of electrical elements and mechanical elements for generating an airflow. The case 10 has at least one of a first flow path 111 as shown in FIG. 11 and a second flow path 112 as shown in FIG. 13. The first flow path 111 is a flow path that allows liquid heading toward the internal space to flow to the external space. The second flow path 112 is a flow path that allows liquid that has entered the internal space to flow to the external space. In this embodiment, as an example, the case 10 has both the first flow path 111 and the second flow path 112.

[0081] Here, the fan device 4, the discharge device 6, the circuit unit 7, etc. are examples of "internal components." Furthermore, the space surrounded by the first case 11, the second case 12, the first cabinet 13, the second cabinet 14, the top panel 16, and the bottom panel 17 that constitute the case 10 is the "internal space" of the case 10, and the space outside the case 10 that is accessible to the user is the "external space" of the case 10. For example, the filter arrangement section 18 to which the filters 21 and 22 are attached is located outside the first cabinet 13 and the second cabinet 14 in the left-right direction D2, and is therefore the external space.

[0082] That is, the internal space surrounded by the case 10 contains internal components consisting of at least one of electrical elements and mechanical elements, such as the fan device 4, the discharge device 6, and the circuit unit 7. The case 10 has at least one of a first flow path 111 that allows liquid heading toward the internal space to flow to the external space, and a second flow path 112 that allows liquid that has entered the internal space to flow to the external space, thereby providing a structure that prevents liquid from entering the internal space.

[0083] In the blower device according to the related art, an outlet is formed on the top surface of the main body case. Therefore, if some liquid, such as a spilled beverage, gets on the blower device, the liquid may seep into the main body case through the outlet, wetting electrical components such as the motor or control unit, potentially leading to a malfunction of the blower device. In contrast, the blower device 100 according to the present embodiment uses at least one of the first flow path 111 and the second flow path 112 to prevent liquid from seeping into the internal space. Therefore, even if some liquid gets on the blower device 100, the internal components housed in the internal space can be prevented from getting wet. In short, the first flow path 111 allows liquid heading toward the internal space to flow to the external space, thereby preventing the liquid from reaching the internal components of the internal space. The second flow path 112 allows liquid that has entered the internal space to flow to the external space, thereby preventing the liquid from accumulating in the internal space. As a result, a blower device 100 that is less likely to malfunction can be provided.

[0084] The first flow path 111 and the second flow path 112 will be described in detail below. However, as shown in Figures 11 and 12, the first flow path 111 is disposed at both ends of the case 10 in the left-right direction D2. Since the left-side first flow path 111 and the right-side first flow path 111 have the same configuration, only the right-side first flow path 111 will be described here, and a description of the left-side first flow path 111 will be omitted.

[0085] The first flow path 111 includes a branch path 113 branching off from an inlet hole 106 (see FIG. 6) that leads from the outer surface of the case 10 to an electric element disposed in the internal space. That is, since it is necessary to introduce outside air into the humidity sensor 71 and the odor sensor 73, which are electric elements included in the internal components, the inlet hole 106 that leads to the internal space is formed, for example, in the top surface 101 of the case 10. The inlet hole 106 is a hole that penetrates the top panel 16 in the up-down direction D1.

[0086] 11, first flow path 111 includes branch path 113 branching off from introduction hole 106, and therefore liquid that seeps in from introduction hole 106 can be guided to the external space through branch path 113, as shown by arrow L1 in the bubble in Fig. 11. This allows first flow path 111 to allow liquid that seeps in from introduction hole 106, which could serve as a path for liquid to seep in, to escape to the external space.

[0087] Here, case 10 further has infiltration prevention portion 114. Infiltration prevention portion 114 is disposed at the branch point of inlet hole 106 to branch path 113, and prevents liquid from infiltrating into the internal space. Specifically, as shown in the bubble in FIG. 11 , an upwardly protruding rib is formed around inlet hole 106 in top panel 16, and this rib functions as infiltration prevention portion 114. As a result, gas (outside air) infiltrating through inlet hole 106 is guided into the internal space where humidity sensor 71 and the like are disposed, as shown by arrow G1 in the bubble in FIG. 11 , while liquid can be prevented from infiltrating into the internal space and guided to the external space.

[0088] Furthermore, a filter element 75 is disposed downstream of the first flow path 111. Here, as an example, the filter element 75 is a filter for the dust sensor 74. As a result, when the liquid guided into the first flow path 111 reaches the filter element 75 located at the end of the first flow path 111, it is absorbed by the filter element 75. As a result, it is possible to prevent the liquid guided into the first flow path 111 from re-entering the internal space or wetting the filter 22.

[0089] As an example, in this embodiment, the filter element 75 is arranged downstream of the first flow path 111 only in the first flow path 111 on the right side, but the filter element 75 may also be arranged in the first flow path 111 on the left side in the same manner.

[0090] 13 and 14, the second flow path 112 is disposed in the gap between the first case 11 and the second case 12. In other words, the first case 11 and the second case 12 that constitute the fan case 15 are joined in a state where they butt against each other in the left-right direction D2, and the second flow path 112 is formed between the butted surfaces of the first case 11 and the second case 12.

[0091] With this configuration, even if liquid seeps into the internal space between first case 11 and second case 12 that make up fan case 15 from air outlet 83, the liquid can escape to the external space through second flow path 112 formed in the gap between first case 11 and second case 12. Second flow path 112 can be formed without drilling holes in first case 11 and second case 12.

[0092] Here, the second flow path 112 is made up of a groove formed in the abutting surface of one of the first case 11 and the second case 12 with the other. In this embodiment, grooves are formed in both the abutting surface (right side) of the lower end of the first case 11 with the second case 12 and the abutting surface (left side) of the lower end of the second case 12 with the first case 11, and these grooves join together to form the second flow path 112. With this configuration, it is possible to form the second flow path 112 in a desired shape according to the shape of the groove.

[0093] 15, the second flow path 112 has a shape in which the cross section narrows toward the downstream side. In this embodiment, the second flow path 112 is located directly above the drainage hole 173 formed in the bottom panel 17 and communicates with the drainage hole 173. The second flow path 112 has a shape that narrows downward so that at least the dimension in the front-to-rear direction D3 is smaller on the drainage hole 173 side. This makes it easier for the second flow path 112 to discharge liquid that has entered the internal space to the external space from a single location.

[0094] Also, second flow path 112 has a gradient that decreases toward the downstream side. Specifically, as shown in the bubble in Fig. 15, second flow path 112 has a water gradient that decreases toward drain hole 173 (the front side). This makes it easier for liquid taken into second flow path 112 to actively flow through second flow path 112 and be discharged from the internal space.

[0095] 14, the bottom surface of the internal space has an inclined surface 115 that slopes downward toward the second flow path 112. Specifically, the bottom surface of the internal space of fan case 15 is inclined with respect to the horizontal plane so that it is lower toward the butt surface side (second flow path 112 side) of first case 11 and second case 12, which is the center in the left-right direction D2. This imparts a water gradient to the bottom surface of the internal space, making it easier for liquid that has entered the internal space to be collected in second flow path 112. In addition, inclined surface 115 may also serve as the draft angle of the mold used when molding first case 11 and second case 12.

[0096] [4] Filter detection function Next, the (attachment) detection function of the filters 21 and 22 of the air blower 100 according to this embodiment will be described with reference to FIGS.

[0097] Figures 16 and 17 are schematic cross-sectional views of blower device 100 taken along line A4-A4 in Figure 4. However, in these drawings, hatching of the cutaway surfaces is omitted.

[0098] As described above, the case 10 has the filter mounting portion 18 to which the filters 21, 22 that allow airflow to pass are removably mounted. The air blower 100 has a function of detecting whether the filters 21, 22 are mounted to prevent malfunction when the filters 21, 22 are not mounted. Specifically, the air blower 100 detects whether the filters 21, 22 are mounted using a detection unit that switches its output depending on whether the filters 21, 22 are mounted in the filter mounting portion 18. When the air blower 100 detects that the filters 21, 22 are not mounted, the air blower 100 performs control to inhibit operation of the fan unit 4, etc., and / or control to issue a warning.

[0099] The following provides a more detailed description of the detection structures of filters 21 and 22. However, since the detection structures of filters 21 and 22 are similar, only filter 21 will be described here, and a description of the other filter 22 will be omitted.

[0100] 16 and 17, an operator 181 for detecting the attachment of the filter 21 is disposed below the filter placement section 18 in the case 10. With this configuration, when the filter 21 is attached, the filter 21 rests on the operator 181, and the weight of the filter 21 operates the operator 181, making it possible to detect the attachment of the filter 21. With this configuration, the detection of the filter 21 is less susceptible to the influence of the dimensional tolerance of the filter 21.

[0101] Specifically, the operator 181 is a member that can seesaw (rotate) around a support shaft 182. One end (left end) of the operator 181 can appear and disappear into the filter mounting section 18 through a hole in the first cabinet 13, and a magnet 183 is held at the other end (right end) of the operator 181. A magnet sensor 184 that detects a magnetic field is also disposed on the right side of the support shaft 182. Furthermore, a biasing member 185 is provided that biases the operator 181 in a direction in which one end (left end) of the operator 181 protrudes into the filter mounting section 18. The biasing member 185 is formed of, for example, a torsion spring.

[0102] 17, when filter 21 is attached, one end (left end) of operator 181 is pressed by filter 21, causing operator 181 to rotate (clockwise in the figure) around support shaft 182 against the biasing force of biasing member 185. This brings magnet 183 held by operator 181 close to magnet sensor 184, causing the output of magnet sensor 184 to change, making it possible to detect that filter 21 has been attached. Here, biasing member 185 biases operator 181, making it less likely that filter 21 will be erroneously detected even if the attitude of main body 1 changes.

[0103] Here, in this embodiment, filter arrangement section 18 has step 186 that reduces the cross-sectional area on the downstream side of the airflow, and operating element 181 is arranged upstream of step 186 in the airflow. In other words, a hole in first cabinet 13 for allowing one end (left end) of operating element 181 to appear and disappear downstream of filter 21 is not required, which prevents air from being taken in without passing through filter 21, making it easier to prevent a decrease in the air cleaning performance of blower device 100.

[0104] [5] Fan device Next, the fan device 4 according to this embodiment will be described in detail with reference to FIGS.

[0105] 18 to 23, only the components around the fan device 4 in the main body 1 of the blower device 100 (the fan device 4 alone, or the fan device 4, the discharge device 6, and the fan case 15, etc.) are shown, and other components are not shown. Fig. 24 is a schematic cross-sectional view of the blower device 100 cut along the A3-A3 line in Fig. 4. However, hatching of the cut surface is omitted in Fig. 24.

[0106] 18 to 21, fan device 4 according to this embodiment includes motor 42 and rotating body 41. Rotating body 41 is rotationally driven by motor 42 to generate an airflow. At least rotating body 41 of fan device 4 is disposed in air passage 84 within fan case 15, and when fan device 4 is driven, an airflow is generated that passes through air passage 84 and is blown out from outlet 153.

[0107] Specifically, the motor 42 is an electric motor that has a rotating shaft 421 and rotates the rotating shaft 421 by receiving power from the circuit unit 7. Here, the motor 42 is disposed in a position where the rotating shaft 421 is parallel to the left-right direction D2. The motor 42 may be either a DC motor or an AC motor.

[0108] The motor 42 is fixed to the second case 12 while being housed in a cover 44 formed integrally with the second case 12. The cover 44 is disposed in the center of the intake 152 of the second case 12 and has a hollow cylindrical shape that is open to the right. As shown in FIG. 20 , with the motor 42 housed inside the cover 44, a lid 43 is attached to close the right side of the cover 44, thereby fixing the motor 42 to the cover 44 and the fan case 15 (second case 12).

[0109] The rotating body 41 is fixed to a rotation shaft 421 of the motor 42, and rotates in accordance with the rotation of the rotation shaft 421 of the motor 42. In other words, the rotating body 41 is driven to rotate around the rotation shaft 421 along the left-right direction D2.

[0110] In this embodiment, the rotor 41 is a double-suction centrifugal fan. Therefore, the rotor 41 has a first fan 411 and a second fan 412, which are coupled in a direction along the rotation shaft 421 (left-right direction D2). In this embodiment, the first fan 411 is located on the left side, and the second fan 412 is located on the right side. As a result, as the rotor 41 rotates, air is taken in through a pair of inlets 151, 152 located on both sides of the rotor 41 in the left-right direction D2, and sent into an air passage 84 formed in the fan case 15, generating an airflow.

[0111] The rotating body 41 has a partition wall 413 that separates the first fan 411 and the second fan 412. As shown in Fig. 21 , the rotating body 41 is mechanically coupled to the motor 42 by fixing a rotating shaft 421 of the motor 42 to the partition wall 413. In other words, when the motor 42 is driven with the rotating shaft 421 fixed to the partition wall 413 of the rotating body 41, the rotating body 41 receives power generated by the motor 42 and rotates.

[0112] 22, the fan device 4 according to this embodiment further includes an agitator 45. The agitator 45 is disposed around the rotation shaft 421 of the motor 42 on the surface of the rotor 41 facing the motor 42. The agitator 45 agitates the air around the motor 42 when the rotor 41 rotates.

[0113] In the configuration of the related art described above, the motor rotates the rotor inside the main body case, which can lead to heat buildup inside the main body case, for example, during long periods of continuous use. In contrast, in the fan device 4 according to this embodiment, the agitator 45 agitates the air around the motor 42 as the rotor 41 rotates, making it less likely that heat generated by the motor 42 will build up inside. Furthermore, the agitator 45 is disposed around the rotation shaft 421 of the motor 42 on the surface of the rotor 41 facing the motor 42, so it rotates together with the rotor 41, eliminating the need to provide additional power to drive the agitator 45. As a result, a fan device 4 and an air blower 100 can be provided that incorporate measures to deal with heat generated by the motor 42.

[0114] 22 and 23, the agitator 45 is disposed on the surface (right side surface) of the partition wall 413 of the rotor 41 that faces the motor 42. Here, the agitator 45 includes a plurality of protrusions 451 that are arranged in a circumferential direction around the rotation shaft 421. With this configuration, the plurality of protrusions 451 can efficiently agitate the air around the motor 42.

[0115] Each of the plurality of protrusions 451 has a blade shape. Specifically, each of the plurality of protrusions 451 has a blade shape similar to the blade shape of the second fan 412 located around the agitator 45. This allows the agitator 45 to function like a centrifugal fan, and makes it possible to efficiently agitate the air around the motor 42.

[0116] In the present embodiment, as an example, the plurality of protrusions 451 are arranged concentrically with the blades of the second fan 412, with the rotation shaft 421 as the center. Furthermore, the plurality of protrusions 451 are arranged at equal intervals in the circumferential direction of the rotation shaft 421.

[0117] 24, when the rotor 41 rotates, the air stirred by the stirrer 45 (indicated by the solid black arrow) is primed by the airflow (indicated by the hollow arrow) generated by the rotation of the rotor 41, and is discharged together with the airflow through the air passage 84. This makes it possible to efficiently cool the motor 42 without blowing air directly onto the motor 42. A method of blowing air directly onto the motor 42 is not preferable, because, for example, when liquid enters the motor 42, the motor 42 is more likely to be splashed with liquid.

[0118] 23, at least a portion of agitator 45 is located within the projection plane of motor 42 when viewed from one side (for example, the right side) along rotation axis 421. In FIG. 23, the outline of motor 42 is shown by an imaginary line (two-dot chain line). With this arrangement, it becomes possible to efficiently agitate the air around motor 42 when agitator 45 rotates.

[0119] Furthermore, in this embodiment, at least a portion of the agitator 45 is located outside the projection surface of the motor 42 when viewed from one side (e.g., the right) in the direction along the rotation shaft 421. That is, in this embodiment, the agitator 45 is disposed across both the inside and outside of the outer edge of the projection surface of the motor 42 when viewed from one side (e.g., the right) in the direction along the rotation shaft 421. With this arrangement, it becomes possible to efficiently agitate the air around the motor 42 when the agitator 45 rotates.

[0120] Furthermore, agitator 45 generates an airflow in a direction away from rotary shaft 421. Specifically, in the example of Fig. 23, as rotor 41 rotates counterclockwise, multiple protrusions 451 of agitator 45 constituting the centrifugal fan generate an airflow in an outward direction (a direction away from rotary shaft 421). This makes it possible to efficiently agitate the air around motor 42.

[0121] The rotor 41 also has ventilation holes 414 that penetrate along the rotation shaft 421. In this embodiment, the ventilation holes 414 are holes that penetrate the partition wall 413 in the left-right direction D2, and a plurality of ventilation holes 414 are arranged around the rotation shaft 421 on the partition wall 413. This allows the air around the motor 42 that has been stirred by the stirrer 45 to escape through the ventilation holes 414, leading to improved heat dissipation performance.

[0122] Furthermore, ventilation holes 414 are arranged on the outer periphery of agitator 45 in rotor 41. In other words, ventilation holes 414 are arranged on the outside of agitator 45 (the side opposite to rotation shaft 421) when viewed from one side (for example, the right side) along rotation shaft 421. This allows the air around motor 42 that has been agitated by agitator 45 to efficiently escape through ventilation holes 414, leading to improved heat dissipation performance.

[0123] Furthermore, in this embodiment, as described above, the fan device 4 includes a cover 44 that covers the motor 42. A cooling flow path 442 (see FIG. 24) is formed between the outer surface of the motor 42 and the cover 44, through which the airflow generated by the agitator 45 passes. This allows the agitator 45 to agitate the hot air trapped between the motor 42 and the cover 44, thereby actively cooling (air-cooling) the outer surface of the motor 42.

[0124] 19 and 20, an opening 441 is formed in the cover 44 at a position between the motor 42 and the agitator 45. This allows hot air trapped between the motor 42 and the cover 44 to escape to the outside of the cover 44 through the opening 441, leading to improved heat dissipation performance.

[0125] Furthermore, in this embodiment, as described above, the rotor 41 is a double-intake centrifugal fan. That is, the rotor 41 is configured to suck in air from both sides in the direction along the rotation shaft 421 (left-right direction D2). This makes it easier to actively entrain the air stirred by the stirrer 45 into the airflow and discharge it. This allows the motor 42 to be cooled efficiently.

[0126] Furthermore, in the direction along the rotation shaft 421 (left-right direction D2), at least a portion of the motor 42 is located at the same position as the rotor 41. In this embodiment, as shown in FIG. 24, at least a portion of the motor 42 is located inside the second fan 412 of the rotor 41. This makes it easier to actively entrain the air stirred by the stirrer 45 into the airflow and discharge it. This allows the motor 42 to be cooled efficiently.

[0127] [6] Variation Below, we will list some modified examples of embodiment 1. The modified examples explained below can be applied in appropriate combinations.

[0128] The blower device 100 is not limited to an air purifier, and can be realized as various electrical devices having a blowing function. For example, the blower device 100 can be realized as an air conditioner, a heater, a dryer, a blower, or other electrical devices.

[0129] Furthermore, it is not essential that the fan device 4 be used in the blower device 100, and the fan device 4 may be used in, for example, a cooling device or a vehicle.

[0130] Furthermore, the air blower 100 does not necessarily have to include the discharge device 6.

[0131] Furthermore, it is not essential that the main body 1 has two (a pair of) air intake ports 81, 82; it is sufficient that there is at least one air intake port, and there may be one or three or more air intake ports.

[0132] Furthermore, it is not essential that the main body 1 has one air outlet 83; it is sufficient that there is at least one air outlet, and there may be two or more air outlets.

[0133] Furthermore, the components of the case 10 (fan case 15, first cabinet 13, second cabinet 14, top panel 16, bottom panel 17, etc.) are not limited to being made of resin, and may be made at least partially of metal, for example.

[0134] Furthermore, it is not essential for the discharge device 6 to generate positive and negative ions, and for example, discharge products other than ions may be generated by the discharge of the first discharge electrode and the second discharge electrode. Furthermore, it is not essential for the discharge device 6 to have an induction electrode.

[0135] Furthermore, blower device 100 is not limited to a configuration in which fan device 4 generates an airflow by sending air into air passage 84. For example, fan device 4 may be disposed at an end of air passage 84 on the outlet 83 side (downstream end) and exhaust air from air passage 84, thereby generating an airflow (wind) that passes through air passage 84 and is blown out from outlet 83.

[0136] [Appendix to the invention] The following is a summary of the invention extracted from the above-described embodiment. Note that the configurations and processing functions described in the following supplementary notes can be selected and combined as desired.

[0137] <Appendix 1> A motor; a rotor that is rotationally driven by the motor to generate an airflow; a stirring body that is disposed around the rotation shaft of the motor on a surface of the rotating body facing the motor and stirs the air around the motor when the rotating body rotates, Fan device.

[0138] <Appendix 2> At least a part of the stirring body is located within a projection plane of the motor when viewed from one direction along the rotation shaft. 2. The fan device of claim 1.

[0139] <Appendix 3> At least a part of the stirring body is located outside a projection plane of the motor when viewed from one direction along the rotation shaft. 3. The fan device according to claim 1 or 2.

[0140] <Appendix 4> a cover for covering the motor; A cooling flow path is formed between the outer surface of the motor and the cover, through which the airflow generated by the agitator passes. 4. The fan device according to any one of claims 1 to 3.

[0141] <Appendix 5> a cover for covering the motor; An opening hole is formed in the cover at a position between the motor and the agitator. 5. The fan device according to any one of claims 1 to 4.

[0142] <Appendix 6> The agitator generates an airflow in a direction away from the rotation shaft. 6. The fan device according to any one of claims 1 to 5.

[0143] <Appendix 7> The rotating body has an air hole passing through along the rotation axis. 7. The fan device according to any one of claims 1 to 6.

[0144] <Appendix 8> The air vent is disposed on the outer periphery of the stirring body in the rotating body. 8. The fan device of claim 7.

[0145] <Appendix 9> The stirring body includes a plurality of protrusions arranged in a circumferential direction around the rotation axis. 9. The fan device according to any one of claims 1 to 8.

[0146] <Appendix 10> Each of the plurality of protrusions has a blade shape. 10. The fan device of claim 9.

[0147] <Appendix 11> The rotating body draws in air from both sides in a direction along the rotation axis. 11. The fan device according to any one of claims 1 to 10.

[0148] <Appendix 12> At least a part of the motor is located at the same position as the rotating body in a direction along the rotation axis. 12. The fan device according to any one of claims 1 to 11.

[0149] <Appendix 13> A fan device according to any one of claims 1 to 12 is provided. Blower. [Explanation of symbols]

[0150] 4 Fan unit 41 Rotating body 42 Motor 44 Cover 45 Stirring body 100 Blower 414 Ventilation hole 421 Rotational Axis 441 Opening hole 442 Cooling Channel 451 Protrusion

Claims

1. A motor; a rotor that is rotationally driven by the motor to generate an airflow; a stirring body that is disposed around the rotation shaft of the motor on a surface of the rotating body facing the motor and stirs the air around the motor when the rotating body rotates, Fan device.

2. At least a part of the stirring body is located within a projection plane of the motor when viewed from one direction along the rotation shaft. The fan device according to claim 1 .

3. At least a part of the stirring body is located outside a projection plane of the motor when viewed from one direction along the rotation shaft. The fan device according to claim 1 or 2.

4. a cover for covering the motor; A cooling flow path is formed between the outer surface of the motor and the cover, through which the airflow generated by the agitator passes. The fan device according to claim 1 or 2.

5. a cover for covering the motor; An opening hole is formed in the cover at a position between the motor and the agitator. The fan device according to claim 1 or 2.

6. The agitator generates an airflow in a direction away from the rotation shaft. The fan device according to claim 1 or 2.

7. The rotating body has an air hole passing through along the rotation axis. The fan device according to claim 1 or 2.

8. The air vent is disposed on the outer periphery of the stirring body in the rotating body. The fan device according to claim 7.

9. The stirring body includes a plurality of protrusions arranged in a circumferential direction around the rotation axis. The fan device according to claim 1 or 2.

10. Each of the plurality of protrusions has a blade shape. The fan device according to claim 9.

11. The rotating body draws in air from both sides in a direction along the rotation axis. The fan device according to claim 1 or 2.

12. At least a part of the motor is located at the same position as the rotating body in a direction along the rotation axis. The fan device according to claim 1 or 2.

13. A fan device comprising: Blower.

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