Circuit-integrated motor

Abstract

The invention provides a circuit-integrated motor capable of reducing the number of components and assembly time. The circuit-integrated motor includes: a motor; a control substrate for controlling the motor; and a housing including a partition wall portion and a cover, the partition wall portion separating a substrate chamber for accommodating the control substrate and a configuration space of the motor, and the cover being provided on a side opposite to the partition wall portion across the control substrate. The facing surface of the partition wall portion facing the control substrate includes: a non-contact region not in contact with the control substrate; and a contact region that protrudes from the non-contact region and is in contact with the control substrate. The cover has a protruding portion protruding toward the substrate chamber side at a position overlapping a contact region of the facing surface when viewed from a normal direction of the control substrate. The control substrate is sandwiched between the convex portion and the contact region in the facing surface.

Description

Technical Field

[0001] This disclosure relates to a circuit-integrated motor that integrates the motor and control unit (control board) into a single module. Background Technology

[0002] Currently, there is a known type of integrated circuit motor that combines the motor and control unit into a single module.

[0003] In an integrated circuit motor, a control board is housed in a board chamber, which is separated from the motor mounting space by a partition wall of the housing. The motor's coil wires are guided through the partition wall to the board chamber and connected to the control board. The control board is typically fixed to the partition wall using fasteners such as screws.

[0004] Patent Document 1 describes a brushless motor in which a through-center member (partition wall) guides the stator windings (coil wires) to the substrate chamber, and connects the ends of the windings to the circuit board (control board). The circuit board is fixed relative to the center member using screws.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2018-93607 Summary of the Invention

[0008] (a) Technical problems to be solved

[0009] However, as described in Patent Document 1, when the control board is fixed to the partition using screws, not only does the number of parts increase, but the time spent on machining the screw holes and tightening the screws also increases.

[0010] In view of the above, at least some embodiments of the present invention aim to provide an integrated circuit motor that can reduce the number of parts and assembly time.

[0011] (II) Technical Solution

[0012] The circuit-integrated motor of at least some embodiments of the present invention includes:

[0013] motor;

[0014] A control board for controlling the motor;

[0015] The housing includes a partition wall and a cover. The partition wall separates a substrate chamber for accommodating the control board and a configuration space for the motor. The cover is disposed on the side opposite to the partition wall, separated from the control board.

[0016] The opposing surface of the partition wall portion that faces the control substrate includes:

[0017] Non-contact area, which does not contact the control substrate;

[0018] The contact area protrudes from the non-contact area and contacts the control substrate.

[0019] The cover has at least one protrusion protruding toward the substrate chamber side at a position where it overlaps with the contact area of ​​the opposing surface when viewed from the normal direction of the control substrate.

[0020] The control substrate is held between the contact area of ​​the at least one protrusion of the cover and the opposing surface of the partition portion.

[0021] (III) Beneficial Effects

[0022] According to at least some embodiments of the present invention, since the control board can be pressed and fixed by the protrusion of the cover of the control board inside the control board chamber, the fixing structure of the control board can be simplified and the assembly time of the integrated circuit motor can be reduced. Furthermore, the number of fasteners used to fix the control board can be reduced, thus reducing the number of components in the integrated circuit motor. Attached Figure Description

[0023] Figure 1A This is a cross-sectional view that schematically illustrates the structure of a circuit-integrated motor according to one embodiment.

[0024] Figure 1B This is a cross-sectional view that schematically illustrates the structure of a circuit-integrated motor according to another embodiment.

[0025] Figure 1C This is a cross-sectional view that schematically shows the structure of a circuit-integrated motor according to another embodiment.

[0026] Figure 2 This is a cross-sectional view along the axial direction of one embodiment of a circuit-integrated motor.

[0027] Figure 3 yes Figure 2 The diagram shown is a perspective view of an integrated circuit motor, omitting the cover and sealing resin to represent the internal structure of the substrate chamber.

[0028] Figure 4 yes Figure 2 The diagram shown is a perspective view of an integrated circuit motor, omitting the cover, sealing resin, and part of the control board to represent the internal structure of the board chamber.

[0029] Figure 5 yes Figure 2 The three-dimensional view of the cover of the integrated circuit motor shown is a view of the cover from an oblique upper side.

[0030] Figure 6 yes Figure 2 The perspective view of the cover of the integrated circuit motor shown is a view of the cover from a lower oblique angle.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10: Motor; 40: Control board; 44: Grounding terminal; 46: Through hole; 50: Housing; 51: Board chamber; 52: Sealing resin; 54: Screw; 55: Sealing resin; 60: Partition; 61: Opposing surface; 61A: Non-contact area; 61B: Contact area; 64: Boss; 66: Side peripheral wall; 66B: Outer surface; 70: Cover; 71: Lower surface; 71A: Non-contact area; 71B: Contact area; 72: Protrusion; 74: Cover plate; 75: Bending part; 76: Drooping part; 78: Recess; 79: Through hole; 82: Clamping claw; 84: Clamping recess; 92: Terminal; 100 (100A~100D): Integrated circuit type motor. Detailed Implementation

[0033] Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, and relative arrangements of the structural components described as embodiments or shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative examples.

[0034] Figure 1A This is a cross-sectional view that schematically shows the structure of an integrated circuit motor 100A according to one embodiment. Figure 1B This is a cross-sectional view that schematically illustrates the structure of an integrated circuit motor 100B according to another embodiment. Figure 1C This is a cross-sectional view that schematically shows the structure of an integrated circuit motor 100C according to another embodiment.

[0035] Below, when mentioning including Figure 1A , Figure 1B or Figure 1C When there are multiple embodiments of at least one of them, it is simply referred to as an integrated circuit motor 100, or as an integrated circuit motor 100 (100A) or an integrated circuit motor 100 (100A, 100B) that specifies the included embodiments.

[0036] like Figures 1A-1C As shown, the integrated circuit motor 100 includes: a motor 10, a control board 40 for controlling the motor 10, and a housing 50 having a partition 60 and a cover 70.

[0037] The control board 40 is covered by the housing 50. The housing 50 forms a board chamber 51 that accommodates the control board 40. The motor 10 is disposed in a motor placement space 11 on the opposite side of the board chamber 51, separated by a partition 60.

[0038] In some implementations, such as Figures 1A-1C As shown, the motor 10 includes: a stator 20, which includes a stator core 22; and a rotor 30 having a magnet 32 ​​configured to be radially opposed to the stator core 22. A coil wire (stator coil) 24 is wound on the stator core 22. The coil wire 24 is connected to a control board 40. When current flows through the coil wire 24 via the control board 40, the rotor 30 rotates circumferentially due to the interaction between the magnetic field generated by the coil wire 24 and the magnet 32.

[0039] Furthermore, the power supplied to the coil lines 24 of the stator 20 is controlled by the inverter circuit included in the control board 40.

[0040] exist Figures 1A-1C In the embodiment shown, the integrated circuit motor 100 is an external rotor type motor, wherein the magnet 32 ​​of the rotor 30 is located on the outer periphery of the stator core 22 of the stator 20.

[0041] Specifically, the stator 20 includes a stator core 22 wound with coil wire 24 and a base 26 fixed to the housing 50 (the partition 60 described later). The stator core 22 extends axially from the base 26 on the side opposite to the partition 60 and extends radially outward toward the magnet 32 ​​at an axial position corresponding to the magnet 32. The coil wire 24 is wound radially outward around the stator core 22 in the stator 20 further outward than the base 26.

[0042] In contrast, the rotor 30 is a rotating component that is rotatably mounted on the support shaft 35 via bearings 34. The support shaft 35 is a stationary shaft and may be part of the stator 20. The rotor 30 has a double-layered cylindrical structure comprising an outer peripheral wall 36 and an inner peripheral wall 37, which are interconnected by a bottom wall 38. A magnet 32 ​​is mounted on the inner peripheral surface of the outer peripheral wall 36.

[0043] In another embodiment, the integrated circuit motor 100 is an internal rotor type motor, wherein the rotor 30 is located on the inner circumference side of the stator 20. The internal rotor type integrated circuit motor 100, apart from the positional relationship between the rotor 30 and the stator 20, has the same characteristics as... Figures 1A-1C The examples illustrate the common basic structure.

[0044] The control board 40 is housed in the board chamber 51 formed between the partition 60 and the cover 70.

[0045] In some implementations, such as Figure 1B and Figure 1C As shown, the substrate chamber 51 is filled with sealing resin 52, and the control substrate 40 is embedded in the sealing resin 52. In contrast, in Figure 1AIn the embodiment shown, the substrate chamber 51 is a cavity.

[0046] The control board 40 includes a printed wiring board 41 and electronic devices 42 mounted on the printed wiring board 41.

[0047] Electronic device 42 may be a component of an inverter circuit used to control the power supply to the coil line 24 of motor 10, such as a semiconductor element represented by a FET. Alternatively, electronic device 42 may be a passive component such as a capacitor or a coil.

[0048] In some implementations, such as Figures 1A-1C As shown, the integrated circuit motor 100 includes a screw 54 that secures a control board 40 to a partition 60. The control board 40 has a ground terminal 44, which is located on the portion secured to the partition 60 by the screw 54. The ground terminal 44 is located on the portion of the printed wiring board 41 secured to the partition 60 by the screw 54, opposite to the partition 60.

[0049] The grounding terminal 44 is pressed against the conductive partition 60 by the tightening force of the screw 54 and is electrically connected to the partition 60.

[0050] like Figures 1A-1C As shown, the housing 50 covering the control board 40 with the above structure includes a partition 60 that separates the board chamber 51 and the motor mounting space 11. The partition 60 extends in a direction (radial) orthogonal to the axial direction of the circuit-integrated motor 100. The planar profile of the partition 60 is not particularly limited; for example, it may be a profile shape defined by a curve, such as a circle or an ellipse, or a profile shape defined by a polygon, such as a rectangle or a square.

[0051] The material forming the partition 60 is not particularly limited. For example, the partition 60 may be made of a conductive metal, such as an aluminum alloy.

[0052] The partition 60 has a facing surface 61 opposite to the control substrate 40, and the facing surface 61 forms part of the inner wall surface of the substrate chamber 51 (the bottom surface of the substrate chamber 51).

[0053] In some implementations, such as Figures 1A-1C As shown, the opposing surface 61 of the partition 60 includes: a non-contact area 61A, which does not contact the control substrate 40; and a contact area 61B, which protrudes from the non-contact area 61A and contacts the control substrate 40.

[0054] exist Figures 1A-1CIn the illustrated embodiment, the non-contact area 61A in the opposing surface 61 is a flat surface that faces the surface of the printed wiring board 41 of the control substrate 40 across a gap and is parallel to the surface of the printed wiring board 41. In contrast, the contact area 61B in the opposing surface 61 is the top surface of the raised portion 62 of the partition wall portion 60, and is a flat surface parallel to the surface of the printed wiring board 41 of the control substrate 40. The raised portion 62 of the partition wall portion 60 protrudes towards the cover 70 with reference to the non-contact area 61A in the opposing surface 61.

[0055] In some implementations, such as Figure 1C As shown, the partition wall 60 has a boss 64 that protrudes from the contact area 61B in the opposing surface 61 toward the substrate chamber 51 side (cover 70 side). The boss 64 engages with the through hole 46 provided on the control substrate 40.

[0056] exist Figure 1C In the exemplary embodiment shown, the protrusion 64 protrudes beyond the contact area 61B of the opposing surface 61 by a length greater than the thickness of the printed wiring board 41 of the control substrate 40. Therefore, the top of the protrusion 64 passes through the printed wiring board 41 of the control substrate 40 and protrudes toward the cover 70 side.

[0057] In some implementations, such as Figures 1A-1C As shown, the partition wall portion 60 includes a side peripheral wall portion 66 disposed along the outer periphery of the partition wall portion 60.

[0058] The peripheral wall portion 66 has an inner surface 66A and an outer surface 66B. Figures 1A-1C In the exemplary embodiment shown, the inner surface 66A of the peripheral wall portion 66 defines the boundary of the outer peripheral side of the substrate chamber 51. That is, the inner surface 66A of the peripheral wall portion 66 forms a part of the inner wall surface of the substrate chamber 51 (the side surface of the substrate chamber 51).

[0059] In addition, the partition 60 may also have an attachment 68 extending radially outward.

[0060] The accessory section 68 is used to mount the integrated circuit motor 100. For example, when the integrated circuit motor 100 is a vehicle motor, the integrated circuit motor 100 can be mounted on the vehicle body via the accessory section 68.

[0061] A cover 70 is provided on the side opposite to the partition wall 60, separated from the control board 40. The cover 70 and the partition wall 60 together form the outer shell 50.

[0062] In some implementations, such as Figures 1A-1C As shown, the cover 70 includes at least one protrusion 72 protruding toward the substrate chamber 51. The control substrate 40 is held within the substrate chamber 51 between the protrusion 72 of the cover 70 and the contact area 61B in the opposing surface 61 of the partition wall portion 60.

[0063] Each protrusion 72 is positioned at a point where it overlaps with the contact area 61B of the opposing surface 61 of the partition wall portion 60 when viewed from the normal direction of the control substrate 40 (the axial direction of the integrated circuit motor 100). That is, when the protrusion 72 of the cover 70 is projected onto the opposing surface 61 of the partition wall portion 60 along the axial direction of the integrated circuit motor 100, the area occupied by the protrusion 72 at least partially overlaps with the contact area 61B. Figures 1A-1C In the exemplary embodiment shown, when viewed from the normal direction of the control substrate 40, each protrusion 72 is entirely contained within the contact area 61B corresponding to each protrusion 72. In another embodiment, when viewed from the normal direction of the control substrate 40, a portion of each protrusion 72 extends beyond the contact area 61B corresponding to each protrusion 72.

[0064] In some implementations, such as Figures 1A-1C As shown, the cover 70 includes: a cover plate portion 74 extending along the control substrate 40, and at least one hanging portion 76 connected to the outer periphery of the cover plate portion 74 by a bending portion 75.

[0065] The cover plate portion 74 extends along the control substrate 40 on the side opposite to the partition wall portion 60, and the lower surface 71 of the cover plate portion 74 forms part of the inner wall surface (top surface) of the substrate chamber 51. The lower surface 71 of the cover plate portion 74 includes a non-contact area 71A that does not contact the control substrate 40, and a contact area 71B that contacts the control substrate 40. Figures 1A-1C In the illustrated embodiment, the protrusion 72 is provided in the cover plate portion 74 of the cover 70. The protrusion 72 protrudes from the non-contact area 71A of the lower surface 71 of the cover plate portion 74 toward the control substrate 40 and into the substrate chamber 51. The top surface of the protrusion 72 forms the contact area 71B of the lower surface 71 of the cover plate portion 74.

[0066] The hanging portion 76 is configured to hang down from the curved portion 75 along the side peripheral wall portion 66 of the partition portion 60. Figures 1A-1C In the illustrated embodiment, the drooping portion 76 is provided along the outer surface 66B of the side peripheral wall portion 66. That is, the drooping portion 76 is located radially on the side opposite to the substrate chamber 51, separated from the side peripheral wall portion 66. In another embodiment, the drooping portion 76 is provided along the inner surface 66A of the side peripheral wall portion 66.

[0067] In some implementations, such as Figure 1B and Figure 1CAs shown, the lower surface 71 of the cover plate portion 74 facing the control substrate 40 is higher than the front end position of the convex portion 72 in at least a part of the region (non-contact region 71A) other than the convex portion 72 and lower than the upper end position of the side peripheral wall portion 66. Here, the direction along the axial direction of the circuit integral type motor 100 from the partition portion 60 toward the cover 70 is defined as the upward direction, and the positional relationship between the lower surface 71 of the cover plate portion 74 and the front end position of the convex portion 72 or the upper end position of the side peripheral wall portion 66 is expressed as "high" or "low".

[0068] In other words, when taking the non-contact region 61A of the opposing surface 61 of the partition portion 60 as a reference, as Figure 1B and Figure 1C shown, the height H of the non-contact region 71A of the lower surface 71 of the cover plate portion 74 is greater than the height H1 of the front end position of the convex portion 72 and less than the height H2 of the upper end position of the side peripheral wall portion 66. In addition, in the exemplary embodiments shown in Figure 1B and Figure 1C by providing a recess 73 on the upper surface (the surface opposite to the lower surface 71) of the cover plate portion 74 to make the lower surface 71 of the cover plate portion 74 approach the opposing surface 61 of the partition portion 60, the relationship of H1 < H < H2 is established.

[0069] In Figure 1C the shown embodiment, a recess 78 is formed on the front end surface (the contact region 71B of the lower surface 71 of the cover plate portion 74) of the convex portion 72 of the cover 70. The recess 78 has a shape complementary to the top of the boss 64 protruding from the contact region 61B in the opposing surface 61 of the partition portion 60 and can receive the top of the boss 64.

[0070] In one embodiment, the recess 78 is formed by a communication hole 79 that connects the inside and outside of the substrate chamber 51. In Figure 1C the shown exemplary embodiment, the communication hole 79 that connects the inside and outside of the substrate chamber 51 is a through hole that penetrates axially through the portion of the cover plate portion 74 where the convex portion 72 is provided. In the state where the cover 70 is assembled to the partition portion 60, the top of the boss 64 enters the middle of the communication hole 79 (through hole).

[0071] The cover 70 with the above structure is installed on the partition portion 60 by any means including fitting or fastening.

[0072] In some embodiments, as Figures 1A-1CAs shown, the integrated circuit motor 100 includes a mating portion 80 of a partition portion 60 and a cover 70. The mating portion 80 includes at least one mating claw 82 and a mating recess 84 for each mating claw 82 to engage. The mating claw 82 is provided on one of the side peripheral wall portion 66 or the downward portion 76. Conversely, the mating recess 84 is provided on the other side peripheral wall portion 66 or the downward portion 76. The mating recess 84 is formed by a recess or opening provided on the side peripheral wall portion 66 or the downward portion 76.

[0073] exist Figures 1A-1C In the embodiment shown, the fitting portion 80 includes a fitting claw 82 disposed on the outer side surface 66B of the side peripheral wall portion 66, and a fitting recess 84 disposed on the lower portion 76. In this case, the fitting claw 82 gradually reduces its protrusion from the outer side surface 66B from the lower portion 76 toward the curved portion 75 along the axial direction of the circuit-integrated motor 100.

[0074] In another embodiment, the fitting portion 80 includes a fitting claw 82 disposed on the lower portion 76 and a fitting recess 84 disposed on the side peripheral wall portion 66. In this case, the fitting claw 82 gradually increases its protrusion from the lower portion 76 toward the curved portion 75 along the axial direction of the circuit-integrated motor 100 from the lower portion 76 toward the curved portion 75.

[0075] Next, refer to Figures 2-6 The detailed structure of the circuit-integrated motor 100 in some embodiments will be described.

[0076] In addition, the following are related to Figures 1A-1C For parts with the same structure as described in the figure, the same reference numerals shall be used, and the descriptions shall be omitted as appropriate.

[0077] Figure 2 This is a cross-sectional view along the axial direction of one embodiment of the integrated circuit motor 100D.

[0078] Figure 3 yes Figure 2 The perspective view of the integrated circuit motor 100D shown omits the cover 70 and sealing resin 55 to represent the internal structure of the substrate chamber 51.

[0079] Figure 4 yes Figure 2 The perspective view of the integrated circuit motor 100D shown omits the cover 70, sealing resin 55 and part of the control board 40 to represent the internal structure of the board chamber 51.

[0080] Figure 5 yes Figure 2 The perspective view of the cover 70 of the integrated circuit motor 100D shown is a view of the cover 70 viewed from an oblique upper side.

[0081] Figure 6 yes Figure 2 The perspective view of the cover 70 of the integrated circuit motor 100D shown is a view of the cover 70 viewed from a lower oblique side.

[0082] In some implementations, such as Figure 2 As shown, the integrated circuit motor 100 includes a motor 10, a control board 40 for controlling the motor 10, and a housing 50 having a partition 60 and a cover 70. The partition 60 extends in a direction orthogonal to the axial direction in a manner that separates the board chamber 51 and the motor mounting space 11.

[0083] like Figure 3 and Figure 4 As shown, the partition wall 60 has a side peripheral wall 66, which is formed in a generally rectangular outline corresponding to the control board 40 in the plan view. The side peripheral wall 66 has a notch 69 in the portion where the terminal bracket 90 is provided. The terminal bracket 90 has a plurality of terminals 92 for connecting external devices and the control board 40.

[0084] In some implementations, such as Figure 4 As shown, the opposing surface 61 of the partition 60 relative to the control substrate 40 includes: a non-contact area 61A that does not contact the control substrate 40, and a contact area 61B that contacts the control substrate 40.

[0085] Contact areas 61B correspond to the four corners of the control substrate 40 and are respectively provided at the four corners of the generally rectangular opposing surface 61 enclosed by the side peripheral wall portions 66. The four contact areas 61B of the opposing surface 61 are the top surfaces of the raised portions 62 provided at the four corners of the partition wall portion 60. A boss 64 protruding towards the substrate chamber 51 side (cover 70 side) is provided on the top surface of each raised portion 62 (contact area 61B). The boss 64 and the through hole 46 provided in the control substrate 40 (see Figure 3 The top of the boss 64 passes through the through hole 46 of the control substrate 40 and protrudes toward the cover 70. The top of the boss 64 is received by the recess 78 (connecting hole 79) of the cover 70, which will be described later.

[0086] In some implementations, such as Figure 3 and Figure 4 As shown, the integrated circuit motor 100 includes screws 54 for securing the control board 40 to the partition portion 60.

[0087] The control board 40 has a grounding terminal 44 (see...) Figures 1A-1C The grounding terminal 44 is located on the portion of the partition 60 that is fastened to it by screws 54. The grounding terminal 44 is pressed against the conductive partition 60 by the fastening force of the screws 54 and is electrically connected to the partition 60.

[0088] In some implementations, such as Figure 3 and Figure 4 As shown, the control board 40 includes six semiconductor elements that constitute the inverter circuit as electronic devices 42.

[0089] The control board 40 is electrically connected to the end 25 of the coil wire 24 of the motor 10. Figure 3 and Figure 4 In the exemplary embodiment shown, the six coil ends (ends of coil wires 24) 25 are electrically connected to the through holes of the printed wiring board 41 disposed on the control substrate 40.

[0090] The control board 40 is electrically connected via multiple terminals 92 of the terminal bracket 90. Figure 3 and Figure 4 In the exemplary embodiment shown, the front ends of the eight terminals 92 are electrically connected to through holes in the printed wiring board 41 disposed on the control substrate 40.

[0091] In some implementations, such as Figure 5 and Figure 6 As shown, the cover 70 includes: a cover plate portion 74 extending along the control substrate 40, and a hanging portion 76 connected to the outer periphery of the cover plate portion 74 by a bending portion 75.

[0092] exist Figure 5 and Figure 6 In the exemplary embodiment shown, one or two hanging portions 76 are provided on each side of the generally rectangular cover portion 74. For example... Figure 2 As shown, each downward-facing portion 76 is provided along the outer surface 66B of the side peripheral wall portion 66. Each downward-facing portion 76 has a fitting recess 84, which is fitted with a fitting claw 82 provided on the outer surface 66B of the side peripheral wall portion 66 of the partition wall portion 60, forming a fitting portion 80 by the fitting claw 82 and the fitting recess 84. Figure 5 and Figure 6 As shown, the fitting recess 84 is an opening provided in the lower part 76.

[0093] The lower surface 71 of the cover plate portion 74 includes a non-contact area 71A that does not contact the control substrate 40 and a contact area 71B that contacts the control substrate 40.

[0094] exist Figure 5 and Figure 6 In the illustrated embodiment, the cover plate portion 74, which is approximately rectangular in plan view, has protrusions 72 at each of its four corners, and the top surface of the protrusions 72 forms the contact area 71B of the lower surface 71 of the cover plate portion 74. In contrast, the non-contact area 71A is formed by the area of ​​the lower surface 71 of the cover plate portion 74 other than the protrusions 72.

[0095] In an exemplary implementation, such as Figure 5As shown, the cover 70 has a recess 73 on the upper surface of the cover plate portion 74 (the side opposite to the lower surface 71). As a result, as... Figure 2 and Figure 6 As shown, in a portion of the area other than the protrusion 72 (non-contact area 71A) of the cover plate portion 74 (corresponding to the portion of the recess 73), the lower surface 71 is higher than the front end of the protrusion 72 and lower than the upper end of the side peripheral wall portion 66.

[0096] In some implementations, such as Figure 5 and Figure 6 As shown, the cover plate portion 74 has at least one raised portion 110 in the area where the recess 73 is provided. The raised portion 110 protrudes in a direction away from the control substrate 40, with reference to the portion surrounding the raised portion 110 in the recess 73. Therefore, the lower surface 71 of the cover plate portion 74 is higher at the raised portion 110 than the portion in the non-contact area 71A corresponding to the recess 73.

[0097] exist Figure 5 and Figure 6 In the exemplary embodiment shown, the raised portion 110 is provided at a position corresponding to the end 25 of the screw 54 and the coil wire 24. The lower surface 71 of the cover portion 74 is avoided upward by the raised portion 110 to prevent interference with the end 25 of the screw 54 and the coil wire 24.

[0098] If we summarize the characteristic structure of the integrated circuit motor 100 of the above-described embodiments, it is as follows.

[0099] [1] The circuit-integrated motor (100, 100A~100D) according to at least some embodiments of the present invention includes:

[0100] Motor (10);

[0101] Control board (40), which is used to control motor (10).

[0102] The housing (50) includes a partition (60) and a cover (70). The partition (60) separates the substrate chamber (51) for accommodating the control substrate (40) and the configuration space (11) for the motor (10). The cover (70) is disposed on the opposite side of the control substrate (40) from the partition (60).

[0103] The opposing surface (61) of the partition wall (60) opposite the control board (40) includes:

[0104] The non-contact area (61A) does not contact the control substrate (40);

[0105] The contact area (61B) protrudes from the non-contact area (61A) and contacts the control substrate (40).

[0106] The cover (70) has at least one protrusion (72) that protrudes toward the substrate chamber (51) at a position where it overlaps with the contact area (61B) of the opposing surface (61) when viewed from the normal direction of the control substrate (40).

[0107] The control board (40) is held between at least one protrusion (72) of the cover (70) and the contact area (61B) of the opposing surface (61) of the partition (60).

[0108] According to the structure described above [1], the control board (40) can be pressed and fixed by the protrusion (72) of the cover (70) of the control board (40) inside the cover chamber (51). Therefore, the fixing structure of the control board (40) can be simplified, and the assembly time of the circuit-integrated motor (100, 100A~100D) can be reduced. In addition, the number of fasteners used to fix the control board (40) can be reduced, and the number of components of the circuit-integrated motor (100, 100A~100D) can be reduced.

[0109] [2] In some embodiments, in the structure described in [1] above,

[0110] The partition wall (60) includes a side peripheral wall (66) disposed along the outer periphery of the partition wall (60).

[0111] The cover (70) includes:

[0112] The cover plate portion (74) extends along the control substrate (40) on the opposite side of the control substrate (40) and the partition wall portion (60), and includes at least one protrusion (72).

[0113] The hanging portion (76) is connected to the outer periphery of the cover plate portion (74) via the curved portion (75) and hangs down along the side peripheral wall portion (66) of the partition portion (60).

[0114] One of the side wall portion (66) or the hanging portion (76) has at least one interlocking claw (82).

[0115] The other side of the peripheral wall portion (66) or the hanging portion (76) has a fitting recess (84) that allows each fitting claw (82) to engage.

[0116] According to the structure described above [2], the cover (70) can be easily assembled through the fitting portion (80) including the fitting claw (82) and the fitting recess (84). In addition, the number of fasteners used to fix the cover (70) can be reduced.

[0117] [3] In some embodiments, in the structure described in [2] above,

[0118] The hanging portion (76) of the cover (70) is provided along the outer surface (66B) of the side peripheral wall portion (66).

[0119] The fitting claw (82) provided on the outer side (66B) of the side peripheral wall (66) engages with the fitting recess (84) provided on the lower part (76).

[0120] According to the structure described above [3], the installation of the cover (70) relative to the side peripheral wall (66) based on the snap-fit ​​can be achieved without affecting the layout of the control board (40) in the board chamber (51).

[0121] [4] In some embodiments, in any of the structures described in [1] to [3] above,

[0122] The partition wall (60) includes a side peripheral wall (66) disposed along the outer periphery of the partition wall (60).

[0123] The cover (70) includes a cover portion (74) that extends along the control substrate (40) on the opposite side of the control substrate (40) and the partition portion (60) and includes at least one protrusion (72).

[0124] The integrated circuit type motor (100, 100B~100D) has a sealing resin (52) that fills the substrate chamber (51) between the cover plate portion (74) and the partition portion (60).

[0125] The lower surface (71) of the cover portion (74) opposite to the control substrate (40) is higher than the front end of the at least one protrusion (72) and lower than the upper end of the side peripheral wall portion (66) in at least a portion of the region other than the at least one protrusion (72).

[0126] According to the structure described above [4], by disposing at least a portion of the lower surface (71) of the cover plate portion (74) of the cover (70) at a position lower than the upper end of the side peripheral wall portion (66), the amount of sealing resin (52) used for sealing the control substrate (40) can be reduced.

[0127] [5] In some embodiments, in any of the structures described in [1] to [4] above,

[0128] The cover (70) includes four protrusions (72) as at least one protrusion (72), the four protrusions (72) respectively correspond to the four corners of the control substrate (40) and are disposed at the four corners of the cover (70).

[0129] According to the structure described above [5], the four corners of the control board (40) can be firmly pressed and fixed by the four protrusions (72) provided at the four corners of the cover (70).

[0130] [6] In some embodiments, in any of the structures described in [1] to [5] above,

[0131] The integrated circuit motor (100, 100A~100D) has a screw (54) that secures the control board (40) to the partition (60).

[0132] The control board (40) has a ground terminal (44), which is disposed on the portion that is fastened to the partition portion (60) by screws (54).

[0133] The grounding terminal (44) is pressed against the conductive partition (60) by the fastening force of the screw (54) and is electrically connected to the conductive partition (60).

[0134] According to the structure described above [6], even without the cover (70) installed, an electrical connection can be established between the grounding terminal (44) of the control board (40) and the partition (60). Therefore, the operation of the control board (40) can be confirmed even without the cover (70) installed.

[0135] [7] In some embodiments, in any of the structures described in [1] to [6] above,

[0136] The partition (60) has a boss (64) that protrudes from the contact area (61B) in the opposing surface (61) toward the cover (70).

[0137] The control substrate (40) has a through hole (46) for fitting the boss (64).

[0138] According to the structure described above [7], when the control substrate (40) is assembled on the partition (60) (or when the sealing resin (52) is filled into the substrate chamber (51), the offset of the control substrate (40) relative to the partition (60) can be suppressed.

[0139] [8] In some embodiments, in the structure described in [7] above,

[0140] At least one protrusion (72) of the cover (70) has a front end face that forms a recess (78) on the top of the receiving boss (64).

[0141] According to the structure described above [8], since the top of the boss (64) provided on the partition (60) side is received by the recess (78) on the cover (70) side, the cover (70) can be easily assembled by the positioning function of the boss (64) on the cover (70).

[0142] [9] In some embodiments, in the structure described in [8] above,

[0143] The integrated circuit motor (100, 100C, 100D) has a sealing resin (52) that fills the substrate chamber (51) between the cover (70) and the partition (60).

[0144] The recess (78) is formed by a connecting hole (79) that connects the inside and outside of the substrate chamber (51).

[0145] According to the structure described above [9], when filling the substrate chamber (51) with sealing resin (52), it is possible to suppress the accumulation of air bubbles in the recess (78) on the side of the cover (70), thereby improving the reliability of the circuit-integrated motor (100, 100C, 100D).

Claims

1. A motor with integrated circuitry, characterized in that, have: motor; A control board for controlling the motor; The housing includes a partition wall and a cover. The partition wall separates a substrate chamber for accommodating the control board and a configuration space for the motor. The cover is disposed on the side opposite to the partition wall, separated from the control board. The opposing surface of the partition wall portion that faces the control substrate includes: Non-contact area, which does not contact the control substrate; The contact area protrudes from the non-contact area and contacts the control substrate. The cover has at least one protrusion protruding toward the substrate chamber side at a position where it overlaps with the contact area of ​​the opposing surface when viewed from the normal direction of the control substrate. The control substrate is held between the contact area of ​​the at least one protrusion of the cover and the opposing surface of the partition portion.

2. The integrated circuit motor according to claim 1, characterized in that, The partition wall portion includes a side peripheral wall portion disposed along the outer periphery of the partition wall portion. The cover includes: The cover plate portion extends along the control substrate on the side opposite to the partition wall portion, separated by the control substrate, and includes the at least one protrusion; At least one hanging portion, which is connected to the outer periphery of the cover plate portion by a curved portion, and hangs down along the side peripheral wall portion of the partition wall portion. The side wall portion or the drooping portion has at least one engaging claw. The side wall portion or the other side of the drooping portion has a fitting recess that allows each of the fitting claws to engage.

3. The integrated circuit motor according to claim 2, characterized in that, The hanging portion of the cover is provided along the outer surface of the side peripheral wall portion. The fitting claw disposed on the outer side of the side peripheral wall portion engages with the fitting recess disposed on the lower portion.

4. The integrated circuit motor according to claim 1 or 2, characterized in that, The partition wall portion includes a side peripheral wall portion disposed along the outer periphery of the partition wall portion. The cover includes a cover portion that extends along the control substrate on the side opposite to the partition wall portion, and includes the at least one protrusion. It includes a sealing resin that fills the substrate chamber between the cover plate portion and the partition wall portion. The lower surface of the cover plate portion opposite the control substrate is higher than the front end of the at least one protrusion and lower than the upper end of the side peripheral wall portion in at least a portion of the region other than the at least one protrusion.

5. The integrated circuit motor according to claim 1 or 2, characterized in that, The cover includes four protrusions as the at least one protrusion, the four protrusions respectively corresponding to the four corners of the control substrate and disposed at the four corners of the cover.

6. The integrated circuit motor according to claim 1 or 2, characterized in that, The device includes screws that secure the control board to the partition wall. The control board has a grounding terminal, which is located in the portion of the partition wall that is fastened to it by the screw. The grounding terminal is pressed against the conductive partition by the tightening force of the screw, and is electrically connected to the conductive partition.

7. The integrated circuit motor according to claim 1 or 2, characterized in that, The partition wall portion has a boss that protrudes from the contact area in the opposing surface toward the cover side. The control substrate has a through hole for the boss to fit into.

8. The integrated circuit motor according to claim 7, characterized in that, The at least one protrusion of the cover has a front end face, the front end face being formed with a recess for receiving the top of the protrusion.

9. The integrated circuit motor according to claim 8, characterized in that, It includes a sealing resin that fills the substrate chamber between the cover and the partition wall. The recess is formed by a connecting hole that connects the inside and outside of the substrate chamber.

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