Motor Module

Abstract

To make a motor module thinner.SOLUTION: A motor module includes a motor and a casing. The casing includes a partition wall unit. A housing space includes a first housing space and a second housing space. The partition wall unit includes a base unit 301 for partitioning the first housing space and the second housing space in an axial direction. The base unit includes a wiring unit 4. The wiring unit includes a lead-out port 41 and a guide groove 42 extending from the lead-out port. A lead wire Le is drawn out from the lead-out port and disposed in the guide groove. The casing has a tape member 51 and a sealing member 52. The tape member covers at least part of the wiring unit from below. The sealing member is arranged in at least part of a space partitioned by the wiring unit and the tape member.SELECTED DRAWING: Figure 13

Description

[Technical Field]

[0001] The present invention relates to a motor module. [Background technology]

[0002] BACKGROUND ART Conventionally, fans that are attached to shoes are known. Conventional fans are driven by a motor (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-244820 Summary of the Invention [Problem to be solved by the invention]

[0004] If the motor that makes up the fan becomes large, it may become difficult to attach the fan to the shoe, so it is necessary to make the motor thinner.

[0005] An object of the present invention is to reduce the thickness of a motor module. [Means for solving the problem]

[0006] An exemplary motor module of the present invention includes a motor that rotates about a central axis extending vertically, and a casing having an accommodation space. The motor has lead wires. The casing has a partition wall portion that divides the accommodation space into multiple sections. The accommodation space includes a first accommodation space that accommodates the motor and a second accommodation space that includes at least a space below the first accommodation space. The partition wall portion has a base portion that separates the first accommodation space from the second accommodation space in the axial direction. The base portion has a wiring portion. The wiring portion has a lead port that penetrates the base portion in the axial direction and a guide groove that is recessed upward from the underside of the base portion and extends radially outward from the lead port. The lead wires are drawn out from the lead port and placed in the guide groove, and extend radially outward along the guide groove. The casing further includes a tape member and a sealing member. The tape member is attached to the underside of the base portion and covers at least a portion of the wiring portion from below. The sealing member is disposed in at least a part of the space defined by the wiring portion and the tape member.

[0007] An exemplary motor module of the present invention includes a motor that rotates about a central axis extending vertically, an impeller that rotates integrally with the motor, a circuit board that controls the motor, and a casing having an accommodation space. The casing has an intake port that opens in the axial direction of the impeller and an exhaust port that opens radially outward from the impeller. The casing has partitions that divide the accommodation space into multiple sections. The accommodation space includes a motor accommodation space that accommodates the motor and impeller, and a board accommodation space that accommodates the board. The board accommodation space is located radially outward from the motor accommodation space when viewed in the axial direction. [Effects of the Invention]

[0008] According to the exemplary motor module of the present invention, the motor module can be made thinner. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of a motor module according to a first exemplary embodiment. [Figure 2]FIG. 2 is an exploded perspective view of the motor module according to the first exemplary embodiment. [Figure 3] FIG. 3 is a cross-sectional perspective view of a motor and impeller according to a first exemplary embodiment. [Figure 4] FIG. 4 is a cross-sectional perspective view of a casing according to a first exemplary embodiment. [Figure 5] FIG. 5 is a cross-sectional view showing the storage space and the elements stored therein according to the first exemplary embodiment. [Figure 6] FIG. 6 is a perspective view of a substrate according to the first exemplary embodiment. [Figure 7] FIG. 7 is a perspective view of the case body according to the first exemplary embodiment, as viewed from below. [Figure 8] FIG. 8 is a plan view of the case main body according to the first exemplary embodiment as viewed from above. [Figure 9] FIG. 9 is a plan view of the case body according to the first exemplary embodiment as viewed from below. [Figure 10] FIG. 10 is a plan view from below of a state in which a substrate is placed in a case main body according to the first exemplary embodiment. [Figure 11] FIG. 11 is a plan view of the bottom portion according to the first exemplary embodiment as viewed from below. [Figure 12] FIG. 12 is a plan view of the inside of the casing according to the first exemplary embodiment, as viewed from below. [Figure 13] FIG. 13 is a cross-sectional view schematically showing the wiring structure of the lead wire according to the first exemplary embodiment. [Figure 14] FIG. 14 is a perspective view of a motor module according to the second exemplary embodiment. [Figure 15] FIG. 15 is an exploded perspective view of a motor module according to the second exemplary embodiment. [Figure 16] FIG. 16 is a cross-sectional view of a motor module according to the second exemplary embodiment. [Figure 17] FIG. 17 is a cross-sectional perspective view of a casing according to a second exemplary embodiment. [Figure 18]FIG. 18 is a perspective view of a substrate according to the second exemplary embodiment. [Figure 19] FIG. 19 is a perspective view of the case body according to the second exemplary embodiment, as viewed from below. [Figure 20] FIG. 20 is a plan view of the case main body according to the second exemplary embodiment as viewed from above. [Figure 21] FIG. 21 is a plan view showing a state in which a substrate is placed in a case main body according to a second exemplary embodiment, as viewed from below. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, exemplary embodiments of the present invention will be described with reference to the drawings.

[0011] In this specification, the direction in which the central axis CA of the motor 1 extends is simply referred to as the "axial direction," with one side of the axial direction defined as the upper side and the other side defined as the lower side. However, this definition of upper and lower does not limit the orientation or positional relationship of the motor module 100 when in use.

[0012] In this specification, the radial direction centered on the central axis CA is simply referred to as the "radial direction," the direction toward the central axis CA is simply referred to as the "radially inward direction," and the direction away from the central axis CA is simply referred to as the "radially outward direction." Furthermore, the circumferential direction centered on the central axis CA is simply referred to as the "circumferential direction."

[0013] In this specification, the surface of each component facing upward is referred to as the “upper surface,” and the surface facing downward is referred to as the “lower surface.” Furthermore, the surface of each component facing radially inward is referred to as the “radially inner surface,” and the surface facing radially outward is referred to as the “radially outer surface.”

[0014] <1-1. Schematic configuration of the first embodiment> Fig. 1 is a perspective view of a motor module 100 according to the first embodiment. Fig. 2 is an exploded perspective view of the motor module 100 according to the first embodiment. Fig. 3 is a cross-sectional perspective view of a motor 1 and an impeller 10 according to the first embodiment.

[0015] The motor module 100 according to the first embodiment is a centrifugal fan, that is, the motor module 100 is a blower.

[0016] For example, the motor module 100 is attached to a shoe. The motor module 100 is driven to circulate air, thereby exhausting the air inside the shoe to the outside. In other words, the motor module 100 prevents the inside of the shoe from getting stuffy. When the motor module 100 is attached to a shoe, the motor module 100 needs to be thin.

[0017] The motor module 100 includes a motor 1. The motor module 100 also includes an impeller 10. The motor 1 rotates around a central axis CA that extends vertically. The impeller 10 is disposed radially outward of the motor 1. The impeller 10 rotates integrally with the motor 1. Specifically, the impeller 10 rotates integrally with the rotor 11 around the central axis CA. In other words, the motor 1 rotates the impeller 10 around the central axis CA.

[0018] The motor 1 includes a holder 101. The holder 101 is cylindrical and has a central axis CA as its center. The holder 101 includes a sleeve bearing 102. The sleeve bearing 102 is disposed radially inward of the holder 101.

[0019] The motor 1 includes a rotor 11 and a stator 12. The rotor 11 is rotatable about a central axis CA. The stator 12 rotates the rotor 11 around the central axis CA.

[0020] The rotor 11 has a covered cylindrical yoke. The yoke has a yoke cover portion 111, a shaft portion 112, and a cylindrical portion 113. The yoke cover portion 111 is disk-shaped and centered on a central axis CA. The shaft portion 112 is disposed at the center of the yoke cover portion 111 and extends downward along the central axis CA. The cylindrical portion 113 extends downward from the radially outer end of the yoke cover portion 111.

[0021] The shaft portion 112 is disposed radially inward of the sleeve bearing 102. The sleeve bearing 102 rotatably holds the shaft portion 112. The cylindrical portion 113 has a magnet 114 disposed radially inward. The magnet 114 is disposed on the radially inner surface of the cylindrical portion 113. The magnet 114 is an annular permanent magnet. The magnet 114 has north and south poles alternately arranged in the circumferential direction. The impeller 10 is fixed to the radially outer surface of the cylindrical portion 113.

[0022] The stator 12 has a stator core 121. The stator core 121 is formed by stacking a plurality of electromagnetic steel plates in the axial direction. The stator core 121 is annular and centered on a central axis CA. A radially inner surface of the stator core 121 is fixed to a radially outer surface of the holder 101. A radially outer surface of the stator core 121 faces the magnet 114 in the radial direction.

[0023] The stator 12 has a coil 122. The coil 122 is formed by winding a conductive wire around a stator core 121. The motor 1 has a lead wire Le (see FIG. 13). The lead wire Le is connected to the stator 12. Driving power for the motor 1 is supplied to the coil 122 via the lead wire Le.

[0024] The motor module 100 also includes a substrate 2. Electronic components such as a switch 2S are mounted on the substrate 2. The substrate 2 controls the motor 1. In other words, the substrate 2 controls the rotation of the impeller 10. In further words, the substrate 2 controls the power supply to the motor 1. A lead wire Le is connected to the substrate 2. The substrate 2 is connected to the motor 1 via the lead wire Le.

[0025] The on / off state of the switch 2S is switched by pressing the switch 2S. Pressing the switch 2S switches between driving and stopping the motor 1 (that is, rotating and stopping the impeller 10).

[0026] The rotation speed of the motor 1 may be switchable in multiple stages. For example, the rotation speed of the motor 1 may be switched depending on the number of times the switch 2S is pressed. This allows the airflow volume to be adjusted by changing the number of times the switch 2S is pressed.

[0027] The motor module 100 includes a battery 400 (see FIG. 5). The battery 400 supplies power to the motor 1. The board 2 controls the power supply from the battery 400 to the motor 1.

[0028] There are no particular limitations on the method of charging the battery 400. For example, the motor module 100 includes a power receiving coil 210 (see FIG. 11). This allows the battery 400 to be charged using a wireless charger (not shown) that has a power transmitting coil.

[0029] The motor module 100 includes a casing 3. The casing 3 has an accommodation space 30 (see FIG. 4). The accommodation space 30 will be described in detail later. The casing 3 also has a case main body 31, a lid portion 32, and a bottom portion 33. The lid portion 32 is disposed above the case main body 31 and closes the accommodation space 30 from above. The bottom portion 33 is disposed below the case main body 31 and closes the accommodation space 30 from below.

[0030] The casing 3 houses the motor 1. That is, the casing 3 houses the impeller 10. The casing 3 also houses the substrate 2. Furthermore, the casing 3 houses the battery 400.

[0031] <1-2. Containment Space> Fig. 4 is a cross-sectional perspective view of the casing 3 according to the first embodiment. In Fig. 4, a dashed line indicates the boundary between the upper accommodating space 320U and the lower accommodating space 320L in the accommodating space 30 of the casing 3. Fig. 5 is a cross-sectional view showing the accommodating space 30 according to the first embodiment and the elements accommodated therein.

[0032] The casing 3 has partition walls 300 that divide the accommodation space 30 into a plurality of spaces. The partition walls 300 divide the accommodation space 30 into a plurality of spaces.

[0033] Specifically, the accommodation space 30 has a first accommodation space 310 that accommodates the motor 1. In other words, the accommodation space 30 has a first accommodation space 310 that accommodates the motor 1 and the impeller 10. The first accommodation space 310 corresponds to the "motor accommodation space." In the following description, the first accommodation space 310 will be referred to as the motor accommodation space 310.

[0034] The casing 3 has an intake port 32A that opens in the axial direction of the impeller 10. The intake port 32A opens, for example, above the impeller 10. The intake port 32A is formed in the lid portion 32. The casing 3 also has an exhaust port 31A that opens radially outward from the impeller 10. When viewed from the radially outward direction, an opening is formed by the recess of the motor accommodating space 310 and the lid portion 32, and this opening becomes the exhaust port 31A.

[0035] The accommodation space 30 also has a second accommodation space 320. The second accommodation space 320 includes at least a space below the motor accommodation space 310. The motor accommodation space 310 and the second accommodation space 320 are separated axially by a partition wall 300. Specifically, the partition wall 300 has a base portion 301. The base portion 301 separates the motor accommodation space 310 and the second accommodation space 320 axially. In other words, the casing 3 has the partition wall 300 that separates the motor accommodation space 310.

[0036] The base portion 301 is a plate-like portion that extends radially, with the axial direction being the plate thickness direction. The motor 1 and impeller 10 are disposed above the base portion 301. The base portion 301 has a motor holding hole MH that penetrates in the axial direction. The holder 101 is disposed radially inward of the motor holding hole MH. In other words, the radial outer surface of the holder 101 is fixed to the radial inner surface of the motor holding hole MH. In other words, the base portion 301 is a portion that holds the motor 1.

[0037] The second accommodating space 320 has an upper accommodating space 320U. The upper accommodating space 320U is a space that is radially outward of the motor accommodating space 310 and axially higher than the lower surface of the base portion 301. The second accommodating space 320 also has a lower accommodating space 320L. The lower accommodating space 320L includes the space below the upper accommodating space 320U and the space below the base portion 301.

[0038] The motor accommodating space 310 and the upper accommodating space 320U are radially separated by a partition wall portion 300. Specifically, the partition wall portion 300 has a vertical wall portion 302. The vertical wall portion 302 stands upright above the base portion 301. The vertical wall portion 302 separates the motor accommodating space 310 and the upper accommodating space 320U in the radial direction. As a result, the motor accommodating space 310 is separated by the partition wall portion 300 when viewed in the axial direction.

[0039] The substrate 2 is accommodated in the second accommodating space 320. Specifically, the substrate 2 is accommodated in the upper accommodating space 320U. The battery 400 is disposed in the lower accommodating space 320L. The battery 400 is disposed below the base 301 in the lower accommodating space 320L. The battery 400 is fixed to the upper surface of the bottom 33.

[0040] By accommodating the substrate 2 in the upper accommodating space 320U, the lower accommodating space 320L can be made larger. That is, a larger space can be provided for arranging the battery 400. Here, the larger the size of the battery 400, the larger the capacity. Therefore, by using the lower accommodating space 320L as a space for arranging the battery 400, the capacity of the battery 400 can be increased.

[0041] The upper accommodating space 320U corresponds to a “substrate accommodating space.” In the following description, the upper accommodating space 320U will be referred to as the substrate accommodating space 320U.

[0042] Here, the board accommodating space 320U is a space radially outward from the motor accommodating space 310. When viewed from the axial direction, the motor accommodating space 310 and the board accommodating space 320U are aligned radially with the partition wall 300 sandwiched between them. In other words, the accommodation space 30 has the board accommodating space 320U that accommodates the board 2. When viewed from the axial direction, the board accommodating space 320U is located radially outward from the motor accommodating space 310.

[0043] In this configuration, the motor 1 and the substrate 2 are aligned in the radial direction. By arranging the motor 1 and the substrate 2 so that they are aligned in the radial direction, the axial width of the casing 3 can be made smaller than when the motor 1 and the substrate 2 are arranged so that they overlap in the axial direction. As a result, the motor module 100 can be made thinner. In other words, the motor module 100 used as a centrifugal fan in which the impeller 10 is attached to the motor 1 can be made thinner.

[0044] <1-3. Circuit board storage position> FIG. 6 is a perspective view of the substrate 2 according to the first embodiment. FIG. 7 is a perspective view of the case body 31 according to the first embodiment, as seen from below. FIG. 8 is a plan view of the case body 31 according to the first embodiment, as seen from above. FIG. 8 illustrates the impeller 10, and the air flow path caused by the rotation of the impeller 10 is indicated by arrows CD. Air flows in the direction indicated by arrows CD. In other words, the impeller 10 rotates in the direction indicated by arrows CD. FIG. 9 is a plan view of the case body 31 according to the first embodiment, as seen from below. FIG. 10 is a plan view of the case body 31 according to the first embodiment, as seen from below, with the substrate 2 arranged therein. FIG. 11 is a plan view of the bottom 33 according to the first embodiment, as seen from below. FIG. 11 illustrates the power receiving coil 210.

[0045] The motor accommodating space 310 has a space 311. The space 311 includes a circumferential flow path for air that flows as the impeller 10 rotates. That is, the space 311 includes the flow path indicated by the arrows CD in FIG. 8. The motor accommodating space 310 also has a space 312. The space 312 includes a flow path that extends from the space 311 toward the exhaust port 31A. In FIG. 8, the boundary between the space 311 and the space 312 when viewed from above is indicated by a dashed line.

[0046] Here, partition wall portion 300 that partitions motor accommodating space 310 has tongue portion 303. When viewed from above, tongue portion 303 is a portion located on a line extending along the boundary between space 311 and space 312, and is a portion that protrudes into motor accommodating space 310. In other words, when viewed from above, tongue portion 303 is a portion that protrudes toward the inside of motor accommodating space 310 along the outer circumferential edge of impeller 10, on the exhaust port 31A side of central axis CA.

[0047] The vertical wall portion 302 has, when viewed from above, a first wall portion 3021 that extends in a curved shape in the circumferential direction along the outer peripheral edge of the impeller 10, and a second wall portion 3022 that extends from a portion of the first wall portion 3021 that protrudes most to one side in the left-right direction (the right side in FIG. 8) to an end of the exhaust port 31A on the other side in the left-right direction (the left side in FIG. 8). When viewed from above, the tongue portion 303 is formed by the first wall portion 3021 and the second wall portion 3022.

[0048] The outer shape of the casing 3 has four side surfaces when viewed in the axial direction. One of the four side surfaces has an exhaust port 31A. In the following description, the direction parallel to the surface having the exhaust port 31A among the four side surfaces when the casing 3 is viewed in the axial direction is defined as the left-right direction.

[0049] Also, when viewed from the axial direction, a line L1 passing through the left and right ends of the exhaust port 31A is defined as a first imaginary line. A line L2 that is parallel to the first imaginary line L1 and tangent to the partition wall portion 300 on the side opposite the exhaust port 31A side across the central axis CA is defined as a second imaginary line L2. A line L3 that is perpendicular to the first imaginary line L1 and tangent to the partition wall portion 300 on each of the left and right sides across the central axis CA is defined as a third imaginary line. In Figures 8 and 9, the first imaginary line L1, the second imaginary line L2, and the third imaginary line L3 are each indicated by a two-dot chain line.

[0050] The substrate accommodation space 320U has an anti-exhaust side space 321, which is a space on the opposite side of the second imaginary line L2 from the exhaust port 31A side when viewed from the axial direction. The anti-exhaust side space 321 has a rectangular shape (including a substantially rectangular shape) when viewed from the axial direction.

[0051] Furthermore, at least a portion of the substrate accommodating space 320U is provided in a motor outer circumferential space 322 that is surrounded by the first imaginary straight line L1, the second imaginary straight line L2, the third imaginary straight line L3, and the partition wall portion 300 when viewed from the axial direction. At least a portion of the substrate 2 is disposed in the motor outer circumferential space 322. Note that in FIG. 8, the space surrounded by the first imaginary straight line L1, the second imaginary straight line L2, the third imaginary straight line L3, and the partition wall portion 300 when viewed from the axial direction is hatched with dashed lines.

[0052] The substrate 2 has a rectangular (including substantially rectangular) main portion 21 when viewed in the axial direction, and a protruding portion 22 that protrudes from the main portion 21. The main portion 21 is disposed in the counter-exhaust side space 321, and the protruding portion 22 is disposed in the motor outer periphery space 322. This allows for effective use of the motor outer periphery space 322. In other words, the mounting area of ​​the substrate 2 can be increased without increasing the size of the motor module 100.

[0053] The switch 2S is mounted on the main part 21. The casing 3 has an operation window 3101 to enable operation of the switch 2S from the outside. The operation window 3101 is formed in the case body 31 and opens from the anti-exhaust side space 321 toward the outside. The portion of the switch 2S that is pressed is located in the operation window 3101. This allows the switch 2S to be operated via the operation window 3101. The operation window 3101 is covered with a rubber switch cover 3102 (see Figures 1 and 2). This prevents moisture, dust, and the like from entering the inside of the casing 3.

[0054] The substrate 2 also has a connection point 200 to which the lead wire Le of the motor 1 is connected. The connection point 200 is located on the underside of the substrate 2. In Fig. 6, the underside of the substrate 2 is not shown. For this reason, the portion of the upper surface of the substrate 2 that overlaps with the connection point 200 in the axial direction is surrounded by a dashed line to clarify the position of the connection point 200.

[0055] The board 2 is positioned in the axial direction. Specifically, the casing 3 has a positioning portion 34 in the board accommodating space 320U that comes into contact with the upper surface of the board 2. This prevents electronic components mounted on the upper surface of the board 2 from coming into contact with the casing 3. Here, in the process of mounting the board 2 to the casing 3, the board 2 is mounted with the lower surface of the case body 31 facing upward. At this time, the board 2 can be positioned in the axial direction simply by placing the board 2 on the positioning portion 34. This makes it easy to mount the board 2 to the casing 3.

[0056] The motor module 100 also includes a buffer material 40 (see FIG. 5). For example, an elastic material such as sponge can be used as the buffer material 40. The casing 3 has a bottom 33 below the board accommodating space 320U. The buffer material 40 is disposed on the upper surface of the bottom 33 and contacts the lower surface of the board 2. That is, the buffer material 40 is sandwiched between the board 2 and the bottom 33 in the axial direction. This allows the board 2 to be held in contact with the positioning portion 34, thereby reliably suppressing misalignment of the board 2 in the axial direction. Furthermore, it is possible to buffer impacts on the board 2 in the axial direction.

[0057] The motor outer periphery space 322 has a tongue space 323. The tongue space 323 is a space that protrudes toward the motor accommodating space 310 on the exhaust port 31A side of the central axis CA when viewed in the axial direction. The tongue space 323 is a space located on the back surface side of the tongue 303, and has a shape that reflects the shape of the tongue 303. In other words, the tongue space 323 is a space that is surrounded by the third imaginary straight line L3 on one side in the left-right direction (the right side in FIG. 9 ), the first wall portion 3021, and the second wall portion 3022 on the exhaust port 31A side of the central axis CA when viewed in the axial direction.

[0058] The substrate 2 is not disposed in the tongue space 323. However, this is not limited to this. At least a portion of the substrate 2 may be disposed in the tongue space 323. Furthermore, when at least a portion of the substrate 2 is disposed in the tongue space 323, the portion of the substrate 2 that is disposed in the tongue space 323 may be separated from the main portion 21.

[0059] Furthermore, the portion of the bottom 33 that closes the board accommodating space 320U has a through hole 331. The through hole 331 passes through the bottom 33 in the axial direction. Furthermore, the power receiving coil 210 is disposed on the lower surface of the bottom 33. A coil lead wire (not shown) extending from the power receiving coil 210 is passed through the through hole 331 and connected to the board 2. The lower surface of the bottom 33 on which the power receiving coil 210 is disposed is covered with a cover (not shown).

[0060] <1-4. Lead Wiring> Fig. 12 is a plan view of the inside of the casing 3 according to the first embodiment as seen from below. Fig. 13 is a cross-sectional view schematically showing the wiring structure of the lead wire Le according to the first embodiment.

[0061] The lead wire Le of the motor 1 is drawn out from the motor accommodating space 310 to the board accommodating space 320U. The lead wire Le is then connected to the board 2. In order to draw out the lead wire Le, the casing 3 has a wiring portion 4 on the base portion 301. That is, the base portion 301 has the wiring portion 4.

[0062] The wiring section 4 is used for wiring the lead wires Le. Here, the motor 1 has lead wires Le for each of the U phase, V phase, and W phase. In other words, the motor 1 has multiple (three) lead wires Le.

[0063] The three lead wires Le are drawn out separately from the motor 1. Therefore, the base portion 301 has a wiring portion 4 for each phase. That is, the base portion 301 has multiple (three) wiring portions 4. The structures of the three wiring portions 4 are identical to each other. Therefore, in the following, the structure will be described focusing on the wiring portion 4 of a certain phase, and structural description of the wiring portions 4 of the other phases will be omitted.

[0064] The wiring portion 4 has a lead-out opening 41. The lead-out opening 41 axially passes through the base portion 301. The opening shape of the lead-out opening 41 is not particularly limited. The opening shape of the lead-out opening 41 is, for example, a circular shape.

[0065] The wiring portion 4 has a guide groove 42. The guide groove 42 is recessed upward from the lower surface of the base portion 301. The guide groove 42 may be recessed in a rectangular shape (including a substantially rectangular shape) or an arc shape. The guide groove 42 extends radially outward from the outlet 41. In the following description, the end of the guide groove 42 on the outlet 41 side is defined as the starting end.

[0066] Here, the guide groove 42 extends toward and faces the substrate accommodating space 320U. That is, the guide groove 42 has a terminal end 420 at the radially outer end of the base portion 301, and is connected to the substrate accommodating space 320U.

[0067] The lead wire Le is drawn out from the lead port 41. The lead wire Le is passed through the lead port 41 and extends from above to below the base portion 301. In other words, a portion of the lead wire Le is disposed in the lead port 41.

[0068] The lead wire Le is disposed in the guide groove 42 and extends radially outward along the guide groove 42. The end 420 of the guide groove 42 is connected to the substrate accommodating space 320U. Therefore, by extending the lead wire Le radially outward along the guide groove 42, the lead wire Le can be easily drawn out into the substrate accommodating space 320U. In other words, the lead wire Le can be easily connected to the substrate 2.

[0069] Here, the casing 3 further includes a tape member 51 and a sealing member 52. For example, an insulating tape having a PET base material can be used as the tape member 51. The sealing member 52 is made of, for example, a resin-based material.

[0070] The tape member 51 is attached to the lower surface of the base portion 301. As a result, the tape member 51 covers at least a portion of the wiring portion 4 from below. When viewed from below, the tape member 51 covers the entire area of ​​the outlet 41. Furthermore, when viewed from below, the tape member 51 covers the entire area of ​​the guide groove 42.

[0071] The sealing member 52 is then disposed in at least a part of the space defined by the wiring portion 4 and the tape member 51. Specifically, with the tape member 51 attached to the lower surface of the base portion 301, the material of the sealing member 52 is filled into the space defined by the wiring portion 4 and the tape member 51. This results in the sealing member 52 being disposed in at least a part of the space defined by the wiring portion 4 and the tape member 51.

[0072] This configuration can prevent moisture, dust, and the like from entering from the lower accommodating space 320L into the motor accommodating space 310. Also, it can prevent moisture, dust, and the like from entering from the motor accommodating space 310 into the lower accommodating space 320L.

[0073] Furthermore, in a configuration in which the tape member 51 is attached to the lower surface of the base portion 301 to cover at least a portion of the wiring portion 4 from below, when the constituent material of the sealing member 52 is filled, the filling area of ​​the constituent material of the sealing member 52 is restricted by the tape member 51. In other words, it is possible to prevent the constituent material of the sealing member 52 from spilling out below the lower surface of the tape member 51. In yet other words, it is possible to prevent the sealing member 52 from protruding toward the lower accommodation space 320L, which is the space below the base portion 301.

[0074] This prevents elements accommodated in the lower accommodation space 320L from coming into contact with the sealing member 52, without widening the lower accommodation space 320L in the axial direction. As a result, the axial width of the motor module 100 can be reduced. In other words, the motor module 100 can be made thinner. Furthermore, the motor module 100 used as a centrifugal fan in which the impeller 10 is attached to the motor 1 can be made thinner.

[0075] In addition, with this configuration, the sealing member 52 is prevented from protruding toward the lower accommodation space 320L, allowing for effective use of the lower accommodation space 320L. Here, the battery 400 is accommodated in the lower accommodation space 320L. When the battery 400 is accommodated in the lower accommodation space 320L, contact between the battery 400 and the sealing member 52 can be prevented without reducing the size of the battery 400. Note that the larger the size of the battery 400, the greater the capacity. This makes it possible to provide a motor module 100 with improved operating time per charge.

[0076] Furthermore, the multiple (three) lead wires Le are each drawn out from the lead-out ports 41 of different wiring portions 4. That is, the lead wires Le of each phase are drawn out from the lead-out ports 41 of different wiring portions 4. The lead wires Le of each phase are then arranged in the guide grooves 42 of the different wiring portions 4. The lead wires Le of each phase are extended radially outward along the guide grooves 42 of the different wiring portions 4, and reach the substrate accommodating space 320U.

[0077] This can prevent the lead wires Le (of each phase) from coming into contact with each other. Also, by drawing out the lead wires Le (of each phase) from different outlets 41, wiring errors can be prevented.

[0078] Furthermore, only one tape member 51 is attached to the underside of the base portion 301. In other words, one tape member 51 is shared by multiple wiring portions 4. In other words, the tape member 51 covers at least a portion of each of the multiple wiring portions 4 from below by itself. This eliminates the need to prepare multiple tape members 51 for one motor module 100, thereby reducing the number of parts for one motor module 100.

[0079] Here, if the lead wire Le extending from the motor 1 can be drawn into the board accommodation space 320U via the shortest route, there is no need to take up a large wiring space for the lead wire Le. Therefore, the guide groove 42 extends along a straight line connecting the connection point 200 of the board 2 and the lead-out port 41 when viewed from the axial direction. In other words, the guide groove 42 extends in a straight line radially outward from the lead-out port 41 when viewed from the axial direction. This allows the lead wire Le to be guided to the connection point 200 of the board 2 via the shortest route. As a result, the lead wire Le can be shortened. Furthermore, the short lead wire Le makes it easier to wire the lead wire Le.

[0080] The substrate 2 has a connection point 200 on the protruding portion 22. The protruding portion 22 is disposed in the motor outer periphery space 322. That is, the connection point 200 is disposed in the motor outer periphery space 322. In this configuration, the guide groove 42 extends linearly from the outlet 41 toward the motor outer periphery space 322 when viewed from the axial direction. By disposing the connection point 200 in the motor outer periphery space 322, the main portion 21 of the substrate 2, which is disposed in the anti-exhaust side space 321, can be effectively used.

[0081] Furthermore, the end 420 of the guide groove 42 has a shape that slopes upward toward the substrate accommodating space 320U. The slope shape of the end 420 is not particularly limited. The end 420 may slope in a curved or linear manner. This eliminates any sharp edges at the end 420 of the guide groove 42, allowing the lead wire Le to be drawn from the guide groove 42 into the substrate accommodating space 320U without coming into contact with any sharp edges.

[0082] <2-1. Schematic configuration of the second embodiment> Fig. 14 is a perspective view of a motor module 1001 according to the second embodiment. Fig. 14 also illustrates an operation unit 1002 attached to the motor module 1001. Fig. 15 is an exploded perspective view of the motor module 1001 according to the second embodiment. Fig. 16 is a cross-sectional view of the motor module 1001 according to the second embodiment.

[0083] The motor module 1001 according to the second embodiment is a centrifugal fan, similar to the first embodiment, that is, the motor module 1001 is a blower.

[0084] For example, the motor module 1001 is attached to clothing. The motor module 1001 is driven to circulate air, thereby discharging the air inside the clothing to the outside of the clothing. This allows heat inside the clothing to be released to the outside of the clothing. When the motor module 1001 is attached to clothing, the motor module 1001 needs to be thin so as not to spoil the design of the clothing.

[0085] The motor module 1001 according to the second embodiment includes a motor 1 and an impeller 10 similar to those of the first embodiment. A detailed description of the motor 1 and the impeller 10 according to the second embodiment will be omitted, as the description of the motor 1 and the impeller 10 according to the first embodiment will be used.

[0086] The motor module 1001 includes a substrate 6. The motor module 1001 also includes an FPC 90. The FPC 90 is a flexible printed circuit (Flexible Printed Circuit). The substrate 6 controls the motor 1. The FPC 90 has electronic components such as a switch 6S. The switch 6S of the second embodiment has the same function as the switch 2S of the first embodiment, and therefore a detailed description thereof will be omitted, as the description of the switch 2S of the first embodiment will be used as an example.

[0087] The substrate 6 switches between driving and stopping the motor 1 (that is, rotating and stopping the impeller 10) based on the on / off state of the switch 6S. For this reason, the substrate 6 is connected to the FPC 90.

[0088] The motor module 1001 includes a battery 800. The battery 800 supplies power to the motor 1. The board 6 controls the power supply from the battery 800 to the motor 1.

[0089] The motor module 1001 also includes a casing 7. The casing 7 has an accommodation space 70. The accommodation space 70 will be described in detail later. The casing 7 has a case main body 71, a lid portion 72, and a bottom portion 73. The lid portion 72 is disposed above the case main body 71 and closes the accommodation space 70 from above. The bottom portion 73 is disposed below the case main body 71 and closes the accommodation space 70 from below.

[0090] The casing 7 houses the motor 1. That is, the casing 7 houses the impeller 10. The casing 7 also houses the substrate 6. Furthermore, the casing 7 houses the battery 800.

[0091] Here, the FPC 90 is disposed on the upper surface of the lid portion 72. The switch 6S is switched on and off by being pressed downward from above. Therefore, an operation unit 1002 is disposed above the lid portion 72. The operation unit 1002 has a button B that moves downward when pressed from above. The switch 6S is disposed in a position where it can come into contact with the bottom surface of button B. When button B is pressed, the switch 6S comes into contact with the bottom surface of button B. When button B is pressed, the switch 6S is pressed downward, switching on and off.

[0092] <2-2. Containment Space> Fig. 17 is a cross-sectional perspective view of the casing 7 according to the second embodiment. In Fig. 17, the boundary between the upper accommodating space 720U and the lower accommodating space 720L in the accommodating space 70 of the casing 7 is indicated by a dashed line.

[0093] The casing 7 has partition walls 700 that divide the accommodation space 70 into a plurality of spaces. The partition walls 700 divide the accommodation space 70 into a plurality of spaces.

[0094] Specifically, the accommodation space 70 has a first accommodation space 710 that accommodates the motor 1. In other words, the casing 7 has a first accommodation space 710 that accommodates the motor 1 and the impeller 10. The first accommodation space 710 corresponds to the "motor accommodation space." In the following description, the first accommodation space 710 will be referred to as the motor accommodation space 710.

[0095] The casing 7 has an intake port 72A that opens in the axial direction of the impeller 10. The intake port 72A opens, for example, above the impeller 10. The intake port 72A is formed in the lid portion 72. The casing 7 also has an exhaust port 71A that opens radially outward from the impeller 10. When viewed from the radially outward direction, an opening is formed by the recessed portion of the motor accommodating space 710 and the lid portion 72, and this opening becomes the exhaust port 71A.

[0096] The accommodation space 70 also has a second accommodation space 720. The second accommodation space 720 includes at least a space below the motor accommodation space 710. The motor accommodation space 710 and the second accommodation space 720 are separated axially by a partition wall 700. Specifically, the partition wall 700 has a base portion 701. The base portion 701 separates the motor accommodation space 710 and the second accommodation space 720 axially. In other words, the casing 7 has the partition wall 700 that separates the motor accommodation space 710.

[0097] The base portion 701 of the second embodiment has a motor holding hole MH, similar to the base portion 301 of the first embodiment. A detailed description of the base portion 701 of the second embodiment will be omitted as the description of the base portion 701 of the first embodiment is incorporated herein.

[0098] The second accommodating space 720 has an upper accommodating space 720U. The upper accommodating space 720U is a space radially outward of the motor accommodating space 710 and axially higher than the lower surface of the base portion 701. The second accommodating space 720 also has a lower accommodating space 720L. The lower accommodating space 720L includes the space below the upper accommodating space 720U and the space below the base portion 701.

[0099] The motor accommodating space 710 and the upper accommodating space 720U are radially separated by a partition wall portion 700. Specifically, the partition wall portion 700 has a vertical wall portion 702. The vertical wall portion 702 stands upward from the base portion 701. The vertical wall portion 702 separates the motor accommodating space 710 and the upper accommodating space 720U in the radial direction. As a result, the motor accommodating space 710 is separated by the partition wall portion 700 when viewed in the axial direction.

[0100] The substrate 6 is accommodated in the second accommodating space 720. Specifically, the substrate 6 is accommodated in the upper accommodating space 720U. The battery 800 is disposed in the lower accommodating space 720L. The battery 800 is disposed below the base portion 701 in the lower accommodating space 720L. The battery 800 is fixed to the upper surface of the bottom portion 73. In the second embodiment, by accommodating the battery 800 in the lower accommodating space 720L, the effect of being able to increase the capacity of the battery 800 can be obtained, similar to the first embodiment.

[0101] The upper accommodating space 720U corresponds to the “substrate accommodating space.” In the following description, the upper accommodating space 720U will be referred to as the substrate accommodating space 720U.

[0102] Here, the substrate accommodating space 720U is a space radially outward from the motor accommodating space 710. When viewed from the axial direction, the motor accommodating space 710 and the substrate accommodating space 720U are aligned radially with the partition wall 700 sandwiched between them. In other words, the accommodation space 70 has the substrate accommodating space 720U that accommodates the substrate 6. When viewed from the axial direction, the substrate accommodating space 720U is located radially outward from the motor accommodating space 710.

[0103] As a result, in the second embodiment, the motor 1 and the substrate 2 are aligned in the radial direction, and as in the first embodiment, the effect of being able to reduce the thickness of the motor module 1001 is obtained. In other words, the motor module 1001 used as a centrifugal fan in which the impeller 10 is attached to the motor 1 can be reduced in thickness.

[0104] <2-3. Board storage position> FIG. 18 is a perspective view of a substrate 6 according to the second embodiment. FIG. 19 is a perspective view of a case body 71 according to the second embodiment, as viewed from below. FIG. 20 is a plan view of a case body 31 according to the second embodiment, as viewed from above. In FIG. 20, the outer peripheral edge of the impeller 10 is indicated by a circular dashed line, and the air flow path caused by the rotation of the impeller 10 is indicated by arrows CD. Air flows in the direction indicated by arrows CD. In other words, the impeller 10 rotates in the direction indicated by arrows CD. FIG. 21 is a plan view of a state in which a substrate 6 is arranged in a case body 71 according to the second embodiment, as viewed from below.

[0105] The motor accommodating space 710 has spaces 711 and 712. Spaces 711 and 712 in the second embodiment correspond to spaces 311 and 312 in the first embodiment, respectively. Therefore, the description of spaces 711 and 712 in the second embodiment will be omitted as the description of spaces 311 and 312 in the first embodiment will be used. In FIG. 20 , the boundary between space 711 and space 712 when viewed from above is indicated by a dashed dotted line.

[0106] The partition wall 700 that defines the motor accommodating space 710 has a tongue portion 703. The tongue portion 703 of the second embodiment corresponds to the tongue portion 303 of the first embodiment. The first wall portion 7021 and the second wall portion 7022 of the second embodiment correspond to the first wall portion 3021 and the second wall portion 3022 of the first embodiment, respectively. The tongue portion 703 of the second embodiment is formed by the first wall portion 7021 and the second wall portion 7022 when viewed from above, similar to the tongue portion 303 of the first embodiment. A detailed description of the tongue portion 703 of the second embodiment will be omitted as the description of the tongue portion 303 of the first embodiment is incorporated herein.

[0107] The outer shape of the casing 7 has four side surfaces when viewed in the axial direction. One of the four side surfaces has an exhaust port 71A formed in it. In the following description, the direction parallel to the surface having the exhaust port 71A among the four side surfaces when the casing 7 is viewed in the axial direction is defined as the left-right direction.

[0108] Also, when viewed from the axial direction, a line L1 passing through the left and right ends of the exhaust port 71A is defined as a first imaginary line. A line L2 that is parallel to the first imaginary line L1 and tangent to the partition wall portion 700 on the side opposite the exhaust port 71A side across the central axis CA is defined as a second imaginary line L2. A line L3 that is perpendicular to the first imaginary line L1 and tangent to the partition wall portion 700 on each of the left and right sides across the central axis CA is defined as a third imaginary line. In Figures 20 and 21, the first imaginary line L1, the second imaginary line L2, and the third imaginary line L3 are each indicated by a two-dot chain line.

[0109] At least a portion of the board accommodating space 720U is provided in a motor outer periphery space 722 that is surrounded by the first imaginary straight line L1, the second imaginary straight line L2, the third imaginary straight line L3, and the partition wall 700 when viewed from the axial direction. At least a portion of the board 6 is disposed in the motor outer periphery space 722. This allows the motor outer periphery space 722 to be used effectively. In other words, the mounting area of ​​the board 6 can be increased without increasing the size of the motor module 1001. Note that in FIG. 20, the space surrounded by the first imaginary straight line L1, the second imaginary straight line L2, the third imaginary straight line L3, and the partition wall 700 when viewed from the axial direction is hatched with dashed lines.

[0110] Here, the motor outer periphery space 722 has a tongue space 723. The tongue space 723 is a space that protrudes toward the motor accommodating space 710 on the exhaust port 71A side of the central axis CA when viewed in the axial direction. The tongue space 723 is a space located on the back side of the tongue 703, and has a shape that reflects the shape of the tongue 703.

[0111] The board 6 has a board tongue 60 that is placed in the tongue space 723. The board 6 has a portion that protrudes from the main portion 61 into the tongue space 723 as the board tongue 60. By placing a portion of the board 6 (i.e., the board tongue 60) in the tongue space 723, the mounting area of ​​the board 6 can be increased.

[0112] Furthermore, at least a portion of the board tongue 60 has a shape that follows the inner edge of the tongue space 723 when viewed in the axial direction. This allows the board tongue 60 to be made larger. In other words, the mounting area of ​​the board 6 can be further increased. Note that a shape that follows the inner edge of the tongue space 723 does not necessarily refer only to a shape that is strictly parallel to the inner edge of the tongue space 723. For example, when viewed in the axial direction, the curved portion of the tongue space 723 may be parallel to the tangent to the curved portion.

[0113] The board tongue portion 60 is used to position the board 6 in the axial direction. Specifically, the casing 7 has a positioning portion 74 in the tongue space 723 that contacts the upper surface of the board 6. In this configuration, the positioning portion 74 contacts the board tongue portion 60. This allows for effective use of a portion of the board 6 other than the board tongue portion 60. The positioning portion 74 may also be disposed in another location in the board accommodating space 720U.

[0114] The motor module 1001 includes a buffer material 80 (see FIG. 16). The casing 7 has a bottom 73 below the tongue space 723. The buffer material 80 is disposed on the upper surface of the bottom 73 and contacts the underside of the substrate 6. This keeps the substrate tongue 60 in contact with the positioning portion 74, thereby reliably preventing the substrate 6 from shifting in the axial direction. It is also possible to buffer impacts to the substrate 6 in the axial direction.

[0115] <2-4. Lead Wiring> The base portion 701 has a wiring portion 8. The wiring portion 8 has a lead-out port 81 that penetrates the base portion 701 in the axial direction, and a guide groove 82 that is recessed upward from the lower surface of the base portion 701 and extends radially outward from the lead-out port 81. The lead wires Le of the motor 1 are led out from the lead-out port 81 and arranged in the guide groove 82, and extend radially outward along the guide groove 82.

[0116] The wiring section 8 of the second embodiment has a structure similar to that of the wiring section 4 of the first embodiment. Therefore, a detailed description of the wiring section 8 of the second embodiment will be omitted, as the description of the wiring section 4 of the first embodiment will be used.

[0117] The substrate 6 has a connection point 600 to which the lead wire Le is connected. The connection point 600 is located on the underside of the substrate 6. The lead wire Le is drawn into the substrate accommodating space 720U and connected to the connection point 600. The underside of the substrate 6 is not shown in FIG. 18. For this reason, the portion of the upper surface of the substrate 6 that overlaps with the connection point 600 in the axial direction is surrounded by a dashed line to clarify the position of the connection point 600.

[0118] Here, at least a portion of the connection point 600 is disposed on the board tongue portion 60. Therefore, at least one guide groove 82 extends linearly from the drawing port 81 toward the board tongue portion 60. By disposing at least a portion of the connection point 600 on the board tongue portion 60, a portion of the board 6 other than the board tongue portion 60 can be effectively utilized.

[0119] Although not shown, the casing 7 of the second embodiment further includes a tape member 51 and a sealing member 52, similar to the casing 3 of the first embodiment. The tape member 51 is attached to the lower surface of the base portion 701. As a result, the tape member 51 covers at least a portion of the wiring portion 4 from below. The sealing member 52 is disposed in at least a portion of the space defined by the wiring portion 8 and the tape member 51.

[0120] As a result, the second embodiment can achieve the same effects as the first embodiment. That is, it is possible to prevent moisture, dust, and the like from entering the motor accommodating space 710 from the lower accommodating space 720L. It is also possible to prevent moisture, dust, and the like from entering the lower accommodating space 720L from the motor accommodating space 710.

[0121] Furthermore, since the sealing member 52 can be prevented from protruding toward the lower accommodation space 720L, which is the space below the base portion 701, it is possible to prevent elements accommodated in the lower accommodation space 720L from coming into contact with the sealing member 52, even without widening the lower accommodation space 720L in the axial direction. As a result, the axial width of the motor module 1001 can be reduced. In other words, the motor module 1001 can be made thinner. Furthermore, the motor module 1001 used as a centrifugal fan in which the impeller 10 is attached to the motor 1 can be made thinner.

[0122] <3.Other> The embodiments of the present invention have been described above. However, the scope of the present invention is not limited to the above-described embodiments. The present invention can be implemented by adding various modifications within the scope of the gist of the invention. Furthermore, the above-described embodiments can be combined in any appropriate manner. [Industrial Applicability]

[0123] The present invention can be used in centrifugal fans attached to shoes, clothing, and the like, for example. [Explanation of symbols]

[0124] 1 motor 2, 6 board 3, 7 Casing 4, 8 Wiring section 10 impeller 30, 70 storage space 31A, 71a exhaust port 32A, 72A intake 33, 73 bottom 34, 74 Positioning part 40, 80 buffer material 41, 81 drawer opening 42, 82 guide groove 51 Tape material 52 Sealing member 60 Substrate tongue 90 FPC 100, 1001 motor module 200, 600 connection points 300, 700 Bulkhead section 301, 701 base 310, 710 Motor accommodation space (first accommodation space) 320, 720 Second storage space 320L, 720L lower storage space 320U, 720U PCB storage space (upper storage space) 322, 722 Motor outer space 323, 723 lingual space 400, 800 battery 420 Termination CA center axis L1 First virtual line L2 Second virtual line L3 Third virtual line Le lead wire

Claims

1. a motor that rotates around a central axis extending vertically; a casing having an accommodation space; the motor has leads; the casing has a partition wall that divides the storage space into a plurality of sections, The accommodation space is a first housing space that houses the motor; a second storage space including at least a space below the first storage space, the partition wall portion has a base portion that separates the first accommodating space and the second accommodating space in the axial direction, the base portion has a wiring portion, The wiring portion is a draw-out port that penetrates the base portion in the axial direction; a guide groove recessed upward from the lower surface of the base portion and extending radially outward from the outlet, the lead wire is drawn out from the drawing port and disposed in the guide groove, and extends radially outward along the guide groove; The casing comprises: A tape member; a sealing member, the tape member is attached to a lower surface of the base portion and covers at least a portion of the wiring portion from below; The sealing member is disposed in at least a portion of a space defined by the wiring portion and the tape member.

2. the motor has a plurality of the lead wires; the base portion has a plurality of the wiring portions, The motor module according to claim 1 , wherein the plurality of lead wires are respectively led out from the lead-out ports of the wiring portions different from one another.

3. The motor module according to claim 2 , wherein the tape member alone covers at least a portion of each of the plurality of wiring portions from below.

4. a circuit board that is accommodated in the second accommodation space and controls the motor; the substrate has connection points to which the lead wires are connected; The motor module according to any one of claims 1 to 3, wherein the guide groove extends along a straight line connecting the connection point and the lead-out opening when viewed in the axial direction.

5. The second storage space is an upper accommodating space that is a space radially outward of the first accommodating space and axially above a lower surface of the base portion; a lower storage space including a space below the upper storage space and a space below the base portion, The motor module according to claim 4 , wherein the substrate is accommodated in the upper accommodation space.

6. the guide groove has a terminal end at a radially outer end of the base portion and is connected to the upper accommodating space, The motor module according to claim 5 , wherein an end of the guide groove has a shape that slopes upward toward the upper accommodation space.

7. The motor module according to claim 5 or 6, wherein the casing has a positioning portion in the upper accommodating space that comes into contact with an upper surface of the circuit board.

8. Equipped with cushioning material, The casing has a bottom below the upper storage space, The motor module according to claim 7 , wherein the buffer material is disposed on an upper surface of the bottom portion and is in contact with a lower surface of the substrate.

9. Equipped with a battery, The motor module according to any one of claims 5 to 8, wherein the battery is disposed in the lower housing space.

10. an impeller that rotates integrally with the motor; The casing comprises: an intake port that opens in the axial direction of the impeller; The motor module according to any one of claims 1 to 9, further comprising: an exhaust port that opens radially outward of the impeller.

11. a motor that rotates around a central axis extending vertically; an impeller that rotates integrally with the motor; a board for controlling the motor; a casing having an accommodation space; The casing comprises: an intake port that opens in the axial direction of the impeller; an exhaust port that opens radially outward of the impeller, the casing has a partition wall that divides the storage space into a plurality of sections, The accommodation space is a motor accommodating space that accommodates the motor and the impeller; a substrate accommodating space for accommodating the substrate; The motor module is configured such that the substrate accommodating space is located radially outward of the motor accommodating space when viewed in the axial direction.

12. at least a portion of the substrate accommodating space is provided in a motor outer peripheral space surrounded by, when viewed from the axial direction, a first imaginary line passing through left and right ends of the exhaust port, a second imaginary line parallel to the first imaginary line and tangent to the partition wall on the side opposite the exhaust port side across the central axis, third imaginary lines perpendicular to the first imaginary line and tangent to the partition wall on each of the left and right sides of the central axis, and the partition wall; The motor module according to claim 11 , wherein at least a portion of the substrate is disposed in the motor outer circumferential space.

13. the motor outer peripheral space has a tongue space that protrudes toward the motor accommodating space on the exhaust port side of the central axis when viewed in the axial direction, The motor module according to claim 12 , wherein the base plate has a base plate tongue disposed in the tongue space.

14. The motor module according to claim 13 , wherein at least a portion of the base plate tongue has a shape that follows an inner edge of the tongue space when viewed in the axial direction.

15. The motor module according to claim 13 or 14, wherein the casing has a positioning portion in the tongue space that contacts the upper surface of the substrate.

16. Equipped with cushioning material, The casing has a bottom below the tongue space, The motor module according to claim 15 , wherein the buffer material is disposed on an upper surface of the bottom portion and contacts a lower surface of the base plate.

17. the motor has leads; the substrate has connection points to which the lead wires are connected; The motor module according to any one of claims 13 to 16, wherein at least a part of the connection point is arranged on the base plate tongue portion.

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