WO2021246335A1 - Composant de moteur, moteur et procédé de fabrication de composant de moteur - Google Patents

Composant de moteur, moteur et procédé de fabrication de composant de moteur Download PDF

Info

Publication number
WO2021246335A1
WO2021246335A1 PCT/JP2021/020474 JP2021020474W WO2021246335A1 WO 2021246335 A1 WO2021246335 A1 WO 2021246335A1 JP 2021020474 W JP2021020474 W JP 2021020474W WO 2021246335 A1 WO2021246335 A1 WO 2021246335A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
lead terminal
holding member
motor
ground terminal
Prior art date
Application number
PCT/JP2021/020474
Other languages
English (en)
Japanese (ja)
Inventor
祥太 飯塚
保治 内田
貴洋 浅野
貴紀 荻原
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to CN202180039689.7A priority Critical patent/CN115668705A/zh
Priority to JP2022528806A priority patent/JPWO2021246335A1/ja
Publication of WO2021246335A1 publication Critical patent/WO2021246335A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/40—Structural association with grounding devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes

Definitions

  • This disclosure generally relates to motor parts, motors, and methods for manufacturing motor parts. More specifically, the present disclosure relates to a motor component including a capacitor, a motor including the motor component, and a method for manufacturing the motor component.
  • the electric motor described in Patent Document 1 includes a rotor, a power supply terminal, and a capacitor for reducing noise.
  • the power supply terminal is composed of two plates in the shape of strips facing each other and parallel to each other.
  • the power supply terminal supplies power from the power source to the rotor.
  • One of the two lead wires (lead terminals) of the capacitor is soldered to the positive plate of the power supply terminal, and the other is soldered to the negative plate (ground terminal) of the power supply terminal.
  • the motor component includes a capacitor and a ground terminal.
  • the capacitor has a capacitor element and a lead terminal.
  • the lead terminal is electrically connected to the capacitor element.
  • the ground terminal is electrically connected to the ground and the lead terminal.
  • the ground terminal holds the lead terminal by sandwiching the lead terminal, and is electrically connected to the lead terminal.
  • the motor according to one aspect of the present disclosure includes the above-mentioned motor parts and a motor body.
  • the motor body includes a stator and a rotating shaft.
  • the rotating shaft rotates with respect to the stator.
  • the method for manufacturing a motor component is a method for manufacturing a motor component including a capacitor, a ground terminal, and a holding member.
  • the capacitor has a capacitor element and a lead terminal.
  • the lead terminal is electrically connected to the capacitor element.
  • the ground terminal is electrically connected to the ground and the lead terminal.
  • the holding member holds the ground terminal and the lead terminal.
  • the manufacturing method includes a first step and a second step after the first step. In the first step, the holding member holds the lead terminal. In the second step, the lead terminal is sandwiched between the ground terminals so that the ground terminal holds the lead terminal and the ground terminal is electrically connected to the lead terminal.
  • This disclosure has the advantage that the lead terminal and the ground terminal are mechanically and electrically connected without soldering.
  • FIG. 1 is a rear view of a motor component according to an embodiment.
  • FIG. 2 is a front view of the same motor component.
  • FIG. 3 is a cross-sectional view schematically showing the configuration of a motor including the same motor component.
  • FIG. 4 is a cross-sectional view of the IV-IV cross section of FIG.
  • FIG. 5 is a cross-sectional view taken along the line VV of FIG.
  • FIG. 6 is a cross-sectional view schematically showing the configuration of the motor according to the comparative example.
  • FIG. 7 is an exploded perspective view of the motor component according to the embodiment and an enlarged view of a main part thereof.
  • FIG. 8 is an exploded rear view of the same motor component.
  • FIG. 9 is a cross-sectional view of the IX-IX cross section of FIG.
  • FIG. 10 is a cross-sectional view taken along the line XX of FIG.
  • FIG. 11 is a cross-sectional view taken along the line XX of FIG.
  • FIG. 1 is a rear view of the motor component 100 according to the embodiment.
  • FIG. 2 is a front view of the motor component 100 of the same as above.
  • FIG. 3 is a cross-sectional view schematically showing the configuration of the motor 1 including the motor component 100 of the same.
  • the motor component 100 of the present embodiment includes a capacitor 6 and a ground terminal 7.
  • the capacitor 6 has a capacitor element 63 (see FIG. 7) and a lead terminal 61.
  • FIG. 7 is an exploded perspective view of the motor component according to the embodiment and an enlarged view of a main part thereof.
  • the lead terminal 61 is electrically connected to the capacitor element 63.
  • the ground terminal 7 is electrically connected to the ground and the lead terminal 61.
  • the ground terminal 7 holds the lead terminal 61 by sandwiching the lead terminal 61, and is electrically connected to the lead terminal 61.
  • the lead terminal 61 and the ground terminal 7 can be mechanically and electrically connected without soldering and welding. Therefore, for example, as compared with the case where the lead terminal 61 and the ground terminal 7 are soldered and welded, there is an advantage that the mechanical and electrical connection between the lead terminal 61 and the ground terminal 7 is completed in a short time. be.
  • the motor component 100 of the present embodiment is used for the motor 1 including the motor main body 2, the holding member 4, and the frame 3.
  • the motor body 2 has a stator 21 and a rotor 22.
  • the rotor 22 includes a rotating shaft 221.
  • the rotating shaft 221 includes an axial center (a virtual axis passing through the center of the rotating shaft 221; which is shown by the alternate long and short dash line 2210 in FIG. 3).
  • the rotation shaft 221 rotates about the axis with respect to the stator 21.
  • the holding member 4 has a first surface 41 which is one surface of the rotating shaft 221 in the axial direction, and a second surface 42 which is opposite to the first surface 41.
  • the holding member 4 holds a bearing 11 that rotatably holds the rotating shaft 221 between the first surface 41 and a predetermined member 90.
  • the frame 3 holds the holding member 4 from the outside in the radial direction of the rotating shaft 221.
  • the motor component 100 includes a holding member 4. At least one of the first surface 41 and the second surface 42 of the holding member 4 has inclined surfaces S1 and S2 (dots in FIGS. 1 and 2) in a region around the bearing 11 when viewed from the axial direction of the rotating shaft 221. Has a surface).
  • the inclined surfaces S1 and S2 are inclined with respect to a plane orthogonal to the axial direction of the rotating shaft 221.
  • the inclined surfaces S1 and S2 are inclined so as to be separated from the bearing 11 in the axial direction toward the outer side in the radial direction of the rotating shaft 221.
  • the holding member 4 when the reaction force applied to the bearing 11 from the holding member 4 is generated in response to the force applied to the bearing 11 from the predetermined member 90, the holding member 4 does not have the inclined surfaces S1 and S2.
  • the reaction force is larger than in the case. That is, since the force for holding the bearing 11 is increased, the possibility that the bearing 11 slips can be reduced.
  • the motor component 100 may be provided with at least a capacitor 6 and a ground terminal 7.
  • the motor component 100 does not have to include the holding member 4.
  • the motor component 100 may include the holding member 4.
  • the holding member 4 holds the ground terminal 7.
  • the use of the motor 1 is not particularly limited. In the present embodiment, a case where the motor 1 is provided in an automobile and drives a hydraulic pump of a hydraulic brake will be described as an example.
  • the predetermined member 90 shown in FIG. 3 is a component of the hydraulic pump. That is, the predetermined member 90 is an external component of the motor 1.
  • Motor 1 is an electric motor. As shown in FIG. 3, the motor 1 includes a motor main body 2, a frame 3, a holding member 4, a first bearing (bearing 11), a second bearing 12, and a commutator 13 (the present embodiment). Then, it is provided with two) brushes 14 (see FIG. 1) and a plurality of (two in this embodiment) springs 15 (see FIG. 1). As shown in FIG. 1, the motor 1 includes a plurality of (two in this embodiment) capacitors 6, a ground terminal 7, a plurality of (two in this embodiment) power supply terminals 81, and a wiring 82. , Is further equipped.
  • the front-back and up-down directions are defined by the directions indicated by the arrows in FIG. That is, the direction in which the predetermined member 90 and the motor 1 are lined up is defined as the front-rear direction, the predetermined member 90 side as viewed from the motor 1 is defined as the front, and the motor 1 side as viewed from the predetermined member 90 is rearward. It is stipulated. Further, a certain direction orthogonal to the front-back direction is defined as a vertical direction. However, these provisions do not mean to limit the direction in which the motor 1 is used.
  • the motor body 2 includes a stator 21 and a rotor 22.
  • the stator 21 has a permanent magnet.
  • the stator 21 surrounds the rotor 22.
  • the rotor 22 has a rotating shaft 221 and a rotor core 222.
  • the rotor core 222 has a through hole through which the rotating shaft 221 is passed.
  • the rotor core 222 rotates together with the rotating shaft 221.
  • the rotor 22 further has a coil (not shown) surrounding the rotor core 222.
  • the rotor 22 rotates with respect to the stator 21 due to the electromagnetic interaction between the coil and the permanent magnet (not shown).
  • the frame 3 is formed of metal as a material.
  • the frame 3 has conductivity.
  • the shape of the frame 3 is a bottomed cylinder.
  • the frame 3 has a bottom wall 31 and a side wall 32.
  • the shape of the bottom wall 31 is disk-shaped.
  • the bottom wall 31 has a bearing holding portion 311 that holds the second bearing 12.
  • the shape of the bearing holding portion 311 is cylindrical.
  • the second bearing 12 is inserted inside the bearing holding portion 311.
  • the shape of the side wall 32 is cylindrical.
  • the side wall 32 extends from the peripheral edge of the bottom wall 31 in the thickness direction of the bottom wall 31.
  • the side wall 32 has an opening 320 at one end (front end) on the side opposite to the bottom wall 31 side.
  • the holding member 4 covers the opening 320.
  • the frame 3 and the holding member 4 form a housing for accommodating the motor body 2.
  • the shape of the holding member 4 is a disk shape. When viewed from the front-rear direction, the radial direction of the holding member 4 is along the radial direction of the rotating shaft 221.
  • the holding member 4 has a first surface 41 (front surface) and a second surface 42 (rear surface).
  • the holding member 4 has a recess 410 at the center of the first surface 41.
  • a bearing 11 is inserted in the recess 410.
  • the holding member 4 has a through hole 43 on the bottom surface of the recess 410.
  • a rotation shaft 221 is passed through the through hole 43.
  • the holding member 4 has a recess 420 in the center of the second surface 42.
  • a commutator 13 is inserted in the recess 420.
  • the through hole 43 penetrates the bottom surface of the recess 420.
  • the first bearing 11 and the second bearing 12 rotatably hold the rotating shaft 221.
  • the axial direction of the rotating shaft 221 is along the front-rear direction.
  • a commutator 13 is coupled to the rotating shaft 221.
  • the commutator 13 has a cylindrical shape.
  • the axial direction of the commutator 13 coincides with the axial direction of the rotating shaft 221.
  • the commutator 13 rotates together with the rotation shaft 221.
  • the commutator 13 is electrically connected to a coil (not shown) of the motor body 2.
  • each of the two brushes 14 is a rectangular parallelepiped shape.
  • the longitudinal direction of each brush 14 is along the radial direction of the holding member 4.
  • Each brush 14 is arranged at a position in contact with the commutator 13 in the radial direction of the commutator 13.
  • the plurality of (two) springs 15 correspond one-to-one with the plurality of (two) brushes 14, respectively. Each spring 15 pushes the corresponding brush 14 toward the commutator 13. As a result, the contact pressure between each brush 14 and the commutator 13 is secured.
  • Each spring 15 is a torsion coil spring. Each spring 15 is held by the holding member 4.
  • the holding member 4 has electrical insulation.
  • the holding member 4 is formed of a synthetic resin as a material.
  • the holding member 4 has a base 40.
  • the base 40 is provided substantially over the entire holding member 4 when viewed from the front-rear direction.
  • the holding member 4 has a plurality of (two in this embodiment) brush boxes 44, a pedestal portion 5, and a terminal block 45 (see FIG. 2).
  • the plurality of brush boxes 44, the abutment portion 5, and the terminal block 45 are integrally formed with the base 40.
  • the plurality of brush boxes 44 and the abutment portion 5 project from the rear surface of the base 40.
  • the terminal block 45 projects from the front surface of the base 40.
  • the plurality of brush boxes 44 correspond one-to-one with each of the plurality of brushes 14.
  • Each brush box 44 houses the corresponding brush 14.
  • the abutment portion 5 holds a plurality of capacitors 6.
  • the abutment portion 5 holds the ground terminal 7.
  • the terminal block 45 holds a plurality of power supply terminals 81.
  • the ground terminal 7 is electrically connected to the ground.
  • the frame 3 functions as a ground. That is, the ground terminal 7 is electrically connected to the frame 3.
  • the ground terminal 7 is arranged near the outer edge of the holding member 4.
  • the holding member 4 is attached to the inside of the side wall 32 of the frame 3 by press fitting. As shown in FIG. 3, the outer edge of the holding member 4 is in contact with the inner edge of the side wall 32 of the frame 3, and as shown in FIG. 11, the ground terminal 7 is in contact with the inner edge of the side wall 32 of the frame 3.
  • FIG. 11 is a cross-sectional view taken along the line XX of FIG. 1 for explaining a method of manufacturing a motor component according to an embodiment. As a result, the ground terminal 7 is electrically connected to the frame 3. Further, the holding member 4 is held by the frame 3 in a state where the outer edge of the holding member 4 is in contact with the inner edge of the side wall 32 of the frame 3.
  • the plurality of (two) capacitors 6 correspond one-to-one with the plurality (two) power supply terminals 81. Each capacitor 6 is electrically connected to the corresponding power supply terminal 81. Further, the plurality of (two) power supply terminals 81 correspond one-to-one with the plurality of (two) brushes 14. Each power terminal 81 is electrically connected to the corresponding brush 14.
  • Each capacitor 6 has two lead terminals 61 and 62 (see FIG. 7).
  • the lead terminal 61 is electrically connected to the ground terminal 7. That is, the lead terminal 61 is electrically connected to the ground (frame 3) via the ground terminal 7.
  • the other lead terminal 62 is electrically connected to the corresponding power supply terminal 81 via the wiring 82.
  • the power supply terminal 81 is electrically connected to the power supply. Further, the power supply terminal 81 is electrically connected to the corresponding brush 14 via the wiring 82.
  • the power supply supplies a current to the coil of the motor body 2 via the power supply terminal 81, the wiring 82, the brush 14, and the commutator 13.
  • the holding member 4 has inclined surfaces S1 and S2 (surfaces with dots in FIGS. 1 and 2) on at least one of the first surface 41 (front surface) and the second surface 42 (rear surface). have.
  • both the first surface 41 and the second surface 42 have inclined surfaces.
  • the inclined surface of the first surface 41 is referred to as an inclined surface S1
  • the inclined surface of the second surface 42 is referred to as an inclined surface S2.
  • the inclined surface S1 is provided on the base 40 of the holding member 4.
  • the inclined surface S2 is provided on the base 40 and the two brush boxes 44. As shown in FIG. 3, the inclined surfaces S1 and S2 are inclined so as to be separated from the bearing 11 in the axial direction (front-back direction) of the rotating shaft 221 toward the outer side in the radial direction of the rotating shaft 221. That is, of the inclined surfaces S1 and S2, the radial outer region of the rotating shaft 221 is behind the inner region.
  • Each of the first surface 41 and the second surface 42 has a first region (recesses 410, 420) that overlaps with the bearing 11 when viewed from the axial direction (front-back direction) of the rotating shaft 221 and a second region around the first region. And have.
  • the second region is the entire area other than the first region.
  • the inclined surfaces S1 and S2 are provided in the second region.
  • On the first surface 41 an inclined surface S1 is provided on at least 30% of the second region (see FIG. 2).
  • the inclined surface S2 is provided on at least 50% of the second region (see FIG. 1).
  • the holding member 4 has a plurality of ribs 46 and a first annular portion 47.
  • the plurality of ribs 46 and the first annular portion 47 project from the front surface of the base 40.
  • the first annular portion 47 is an annular protrusion.
  • the first annular portion 47 projects forward from a portion near the peripheral edge of the base 40.
  • the plurality of ribs 46 are provided between the first annular portion 47 and the recess 410. Seen from the front, the shape of the plurality of ribs 46 is reticulated. The strength of the holding member 4 is ensured by providing the plurality of ribs 46 and the first annular portion 47.
  • the front surface of the plurality of ribs 46 and the front surface of the first annular portion 47 are parallel to a plane orthogonal to the axial direction of the rotation axis 221.
  • the front surface of the plurality of ribs 46 and the front surface of the first annular portion 47 are coplanar.
  • the front surface of the plurality of ribs 46 and the front surface of the first annular portion 47 do not have to be on the same plane.
  • the holding member 4 has a second annular portion 48.
  • the second annular portion 48 is an annular protrusion.
  • the second annular portion 48 projects rearward from the peripheral edge of the base 40. At least a part of the outer peripheral surface of the second annular portion 48 is in contact with the inner peripheral surface of the side wall 32 of the frame 3.
  • FIG. 4 is a cross-sectional view of the IV-IV cross section of FIG.
  • FIG. 4 shows a cross-sectional view of a cross section including the axis of the rotating shaft 221.
  • At least one of the first surface 41 and the second surface 42 has an inclined surface S1 (or S2) in a region of 1/2 or more of the region extending from the bearing 11 to the frame 3 (side wall 32) in the cross section.
  • S1 inclined surface
  • a region extending from the bearing 11 to the frame 3 in the above cross section a region on the paper surface of FIG. 4 with respect to the bearing 11 (hereinafter referred to as an upper region) and a region below the paper surface of FIG. 4 with respect to the bearing 11. There are two regions (hereinafter referred to as the lower region) and.
  • Having an inclined surface S1 (or S2) in a region of 1/2 or more means having an inclined surface S1 (or S2) in a region of 1/2 or more of the upper region, and 1/2 or more of the lower region. It means having an inclined surface S1 (or S2) in the region of the above, and satisfying both of them.
  • the first surface 41 has an inclined surface S1 in a region of 1/2 or more in the lower region.
  • the second surface 42 has an inclined surface S2 in a region of 1/2 or more in each of the upper region and the lower region.
  • the holding member 4 has inclined surfaces S1 (or S2) on both sides of the rotating shaft 221 when viewed from the axial direction of the rotating shaft 221.
  • one side of the rotating shaft 221 corresponds to an upper region
  • the other side corresponds to a lower region.
  • the holding member 4 has inclined surfaces S1 and S2 in the upper region and inclined surfaces S1 and S2 in the lower region.
  • the "holding member 4 has an inclined surface S1".
  • the inclined surfaces S1 are provided on both sides of the rotating shaft 221 when viewed from the axial direction of the rotating shaft 221. " Even when the upper region and the lower region have the inclined surface S1 and the upper region and the lower region have the inclined surface S2, "the holding member 4 is a rotating shaft when viewed from the axial direction of the rotating shaft 221.” It has inclined surfaces S1 (or S2) on both sides of 221. "
  • the shapes of the inclined surfaces S1 and S2 are linear.
  • the inclined surface S1 and the inclined surface S2 existing in the region overlapping the inclined surface S1 in the thickness direction of the holding member 4 are parallel in the cross section of FIG.
  • parallel is not limited to parallel in a strict sense, and includes cases where there is an error within an allowable range.
  • FIG. 5 is a cross-sectional view of the VV cross section of FIG.
  • FIG. 5 shows a cross-sectional view of a cross section including the axis of the rotating shaft 221.
  • An inclined surface S1 is provided in a region of the first surface 41 that overlaps with the brush box 44 in the axial direction of the rotating shaft 221.
  • the second surface 42 includes the rear surface of the brush box 44, and at least a part of the rear surface of the brush box 44 is provided with an inclined surface S2.
  • the longitudinal direction of the brush box 44 intersects a plane orthogonal to the axial direction of the rotation axis 221.
  • the brush 14 is arranged in an oblique direction along the shape of the brush box 44. That is, the longitudinal direction of the brush 14 intersects the plane orthogonal to the axial direction of the rotation axis 221.
  • each of the plurality of brush boxes 44 is arranged along the radial direction of the holding member 4, the strength of the holding member 4 is ensured. Further, since the two brush boxes 44 are arranged on both sides of the rotating shaft 221, higher strength of the holding member 4 is secured.
  • the bearing 11 is held between the first surface 41 of the holding member 4 and the predetermined member 90. More specifically, a backward force (contact pressure) is applied to the bearing 11 from the predetermined member 90, and a forward reaction force (contact pressure) from the first surface 41 to the bearing 11 is applied accordingly. ) Has been added. In this way, the bearing 11 is sandwiched and held between the first surface 41 and the predetermined member 90. If the reaction force applied from the holding member 4 to the bearing 11 is not sufficient, the bearing 11 may slip.
  • a backward force (see arrow Y1) is applied from the predetermined member 90 to the holding member 4 via the bearing 11, and a force (see arrow Y2) is applied from the holding member 4 to the frame 3.
  • the force applied to the frame 3 from the holding member 4 is a force in a direction that pushes the frame 3 outward in the radial direction of the rotating shaft 221.
  • a force (see arrow Y3) is applied from the frame 3 to the holding member 4, and a forward force (arrow Y4) is applied from the holding member 4 to the bearing 11 in response to this force. See) is added.
  • the force generated by the motor 1 may have a force in a direction other than the directions shown by the arrows Y1 to Y4, but in FIG. 3 (and FIG. 6), only the main force is illustrated by the arrows Y1 to Y4. ..
  • FIG. 6 illustrates the motor 1P according to the comparative example.
  • the shape of the holding member 4P of the motor 1P is different from the shape of the holding member 4 of the motor 1 of the embodiment.
  • Other configurations of the motor 1P are the same as those of the motor 1.
  • the shape of the holding member 4P is a flat plate.
  • the first surface 41 and the second surface 42 of the holding member 4P are parallel to a plane orthogonal to the axial direction of the rotating shaft 221.
  • the orientations (see Y2) are orthogonal to each other. Therefore, the former force (see arrow Y1) is difficult to be converted into the latter force (see arrow Y2), and the latter force (see arrow Y2) becomes relatively small.
  • the holding member 4 (see FIG. 3) of the embodiment has inclined surfaces S1 and S2.
  • the holding member 4 has a length in an oblique direction along the inclined surfaces S1 and S2.
  • the force applied from the holding member 4 to the bearing 11 is relatively large.
  • the possibility that the bearing 11 slips can be reduced as compared with the motor 1P of the comparative example.
  • the holding member 4 Since the holding member 4 has inclined surfaces S1 and S2, it is easily deformed (prone to warp) by a force from the frame 3 (a force along the radial direction of the holding member 4).
  • the holding member 4 is deformed into the shape shown by the two-dot chain line Z1 in FIG. 3, for example. By deforming the holding member 4, the force applied to the bearing 11 from the holding member 4 (see arrow Y4) can be relatively large.
  • the thickness of the base 40 of the holding member 4P can be made relatively small.
  • the component in the direction along the inclined surfaces S1 and S2 is the radial component of the rotating shaft 221 (see arrow Y5). Greater than. Therefore, the force with which the holding member 4 holds the bearing 11 can be relatively large.
  • the magnitude relationship between the former force (see arrow Y2) and the latter force (see arrow Y5) may be compared by attaching a sensor such as a pressure sensor to the actual motor 1 or measuring the motor 1. It may be done by analyzing the simulation model of.
  • the plurality of capacitors 6 and the ground terminal 7 are attached to the holding member 4 from one side (second surface 42) of the first surface 41 and the second surface 42 of the holding member 4.
  • FIG. 7 shows an exploded perspective view of the motor component according to the embodiment and an enlarged view of a main part thereof.
  • each capacitor 6 has two lead terminals 61 and 62, a capacitor element 63, and a capacitor body 64.
  • the capacitor 6 is, for example, an electrolytic capacitor.
  • the capacitor element 63 has an anode body, a cathode body, and a separator.
  • the anode includes a metal foil containing a valve acting metal such as aluminum, tantalum, or niobium, and a dielectric layer formed on the surface of the metal foil.
  • the cathode body contains a metal leaf such as aluminum.
  • the separator is interposed between the anode and the cathode and holds the electrolyte.
  • the anode body, the cathode body and the separator are each formed in a sheet shape.
  • the anode body, the cathode body and the separator are wound in a roll shape in an overlapping state.
  • One of the two lead terminals 61 and 62 is electrically connected to the cathode body of the capacitor element 63, and the other lead terminal 62 is electrically connected to the anode body of the capacitor element 63. ing.
  • the capacitor body 64 accommodates the capacitor element 63.
  • the two lead terminals 61 and 62 project from the capacitor body 64.
  • the ground terminal 7 is made of, for example, a metal plate.
  • the ground terminal 7 is formed by bending, punching, or the like on a metal plate.
  • the ground terminal 7 has a first portion 71, a second portion 72, a third portion 73, and a plurality of (two in this embodiment) regulatory structures 74.
  • the shape of the second part 72 is a rectangular plate in a plan view.
  • the first part 71 is connected to the first end of the second part 72 in the lateral direction.
  • the third part 73 is connected to the second end of the second part 72 in the lateral direction.
  • the first portion 71 and the third portion 73 project from the second portion 72 to one side in the thickness direction of the second portion 72. That is, the ground terminal 7 is formed in a U-shape when viewed from the side.
  • the two regulatory structures 74 are protrusions provided on the side surface of the third portion 73.
  • the shape of each regulatory structure 74 is a substantially right triangle.
  • the third portion 73 has a plurality of (two in this embodiment) groove portions 730 (first groove portions).
  • the plurality of groove portions 730 are grooves recessed from the end of the third portion 73 opposite to the second portion 72 side to the second portion 72 side.
  • the plurality of groove portions 730 are aligned in the radial direction of the holding member 4.
  • the plurality of groove portions 730 have a one-to-one correspondence with the plurality of capacitors 6.
  • the lead terminal 61 of the corresponding capacitor 6 is passed through each groove 730.
  • the lead terminal 61 of each capacitor 6 is sandwiched between the two inner side surfaces 731 of the groove 730 (see FIG. 9).
  • the ground terminal 7 holds the lead terminals 61 of the plurality of capacitors 6 by sandwiching the lead terminals 61 of each of the plurality of capacitors 6.
  • the ground terminal 7 is electrically connected to each lead terminal 61 of the plurality of capacitors 6.
  • the abutment portion 5 of the holding member 4 projects rearward from the rear surface of the base 40.
  • the abutment portion 5 is provided near the peripheral edge of the base 40.
  • the abutment portion 5 has a plurality of (two in this embodiment) first accommodating recesses 51, a second accommodating recess 52, and a third accommodating recess 53.
  • the two first accommodating recesses 51 and the second accommodating recess 52 are recesses provided on the rear surface (tip) of the abutment portion 5.
  • the third accommodating recess 53 is a recess provided on the side surface of the abutment portion 5. More specifically, the third accommodating recess 53 is provided on the outer surface of the abutment portion 5 in the radial direction of the holding member 4.
  • the plurality of (two) first accommodating recesses 51 correspond one-to-one with the plurality (two) capacitors 6.
  • the holding member 4 accommodates the capacitor body 64 of the corresponding capacitor 6 in each first accommodating recess 51. That is, the holding member 4 holds the capacitor body 64.
  • the second accommodating recess 52 accommodates the third portion 73 of the ground terminal 7.
  • the third accommodating recess 53 accommodates the first portion 71 of the ground terminal 7.
  • the holding member 4 has two temporary holding structures 54.
  • the two temporary holding structures 54 have a one-to-one correspondence with the two capacitors 6.
  • Each temporary holding structure 54 holds the lead terminal 61 of the corresponding capacitor 6. More specifically, each temporary holding structure 54 holds the lead terminal 61 in a state where the lead terminal 61 is not held by the ground terminal 7.
  • FIG. 8 is an exploded rear view of the motor component according to the embodiment. As shown in FIGS. 7 and 8, each of the two temporary holding structures 54 has a plurality of (two in this embodiment) second groove portions 540 and a plurality of (four in this embodiment) protrusions 541. And, including.
  • Each second groove portion 540 is a groove recessed forward from the rear surface of the abutment portion 5.
  • the two second groove portions 540 are arranged in the radial direction of the holding member 4.
  • one of the two second groove portions 540 connects the first accommodating recess 51 and the second accommodating recess 52.
  • the other of the two second groove portions 540 connects the second accommodating recess 52 and the third accommodating recess 53.
  • the capacitor body 64 is accommodated in the first accommodating recess 51.
  • the lead terminal 61 extending from the capacitor body 64 is passed through two second groove portions 540 of the corresponding temporary holding structure 54.
  • the temporary holding structure 54 holds the lead terminal 61 at a plurality of locations (two second groove portions 540) in a state where the lead terminal 61 is not held by the ground terminal 7.
  • the portion 611 (see FIG. 8) arranged between the two second groove portions 540 of the lead terminal 61 is a portion in contact with the ground terminal 7.
  • each second groove portion 540 when viewed from the radial direction of the holding member 4 is U-shaped.
  • Each second groove 540 has a chamfered portion 5400 at each of the two corners at the rear end.
  • the abutment portion 5 is chamfered by two chamfered portions 5400. That is, in each chamfered portion 5400, the inner surface of the second groove portion 540 is inclined so as to be located closer to the center side of the second groove portion 540 toward the region closer to the bottom surface of the second groove portion 540.
  • Two protrusions 541 project from the inner surface of each second groove portion 540 toward the center side of the second groove portion 540.
  • the two protrusions 541 face each other in the direction of protrusion.
  • the lead terminal 61 is sandwiched between two protrusions 541.
  • the abutment portion 5 further has a plurality of (two in this embodiment) fourth accommodating recesses 55.
  • the plurality of fourth accommodating recesses 55 are recesses provided on the rear surface of the abutment portion 5.
  • the plurality of fourth accommodating recesses 55 correspond one-to-one with the plurality of first accommodating recesses 51, respectively.
  • Each fourth accommodating recess 55 is connected to a corresponding first accommodating recess 51.
  • the plurality of fourth accommodating recesses 55 correspond one-to-one with the plurality of capacitors 6.
  • the lead terminal 62 of the corresponding capacitor 6 is passed through each of the fourth accommodating recesses 55. As a result, the lead terminal 62 is held.
  • FIG. 9 is a cross-sectional view of the IX-IX cross section of FIG.
  • the third portion 73 of the ground terminal 7 is the abutment portion 5. It is inserted into the second accommodating recess 52.
  • Each lead terminal 61 is inserted into the corresponding groove portion 730 of the two groove portions 730 of the ground terminal 7.
  • the two groove portions 730 have two inner side surfaces 731 facing each other.
  • the ground terminal 7 sandwiches the lead terminal 61 between the two inner side surfaces 731. As a result, the lead terminal 61 is held, and the ground terminal 7 is electrically connected to the lead terminal 61.
  • the two regulation structures 74 of the ground terminal 7 are in contact with the inner surface of the second accommodating recess 52. As a result, the two regulation structures 74 function as a retaining terminal for the ground terminal 7. In other words, the two regulatory structures 74 regulate the ground terminal 7 from being separated from the lead terminal 61.
  • the holding member 4 may have a structure for retaining the grounding terminal 7, or both the grounding terminal 7 and the holding member 4 may have a structure. For example, as shown by the alternate long and short dash line 520 in FIG. 9, the holding member 4 may have a protrusion (regulatory structure) that protrudes from the inner side surface of the second accommodating recess 52 and is in contact with the ground terminal 7.
  • the motor component 100 referred to here includes a plurality of capacitors 6 and a ground terminal 7.
  • the motor component 100 is manufactured by attaching a plurality of capacitors 6 and a ground terminal 7 to the holding member 4.
  • the method for manufacturing the motor component 100 of the present embodiment includes a first step and a second step after the first step.
  • the holding member 4 holds the lead terminal 61.
  • the lead terminal 61 is sandwiched between the ground terminals 7 to hold the lead terminal 61 in the ground terminal 7, and the ground terminal 7 is electrically connected to the lead terminal 61.
  • the capacitor main body 64 is inserted into the first accommodating recess 51.
  • the lead terminal 61 is held by the temporary holding structure 54 (two second groove portions 540). As a result, the lead terminal 61 is positioned. Further, the lead terminal 62 is passed through the fourth accommodating recess 55. The lead terminals 61 of the two capacitors 6 and the two capacitors 6 are temporarily held by the abutment portion 5 in this way.
  • FIG. 10 is a cross-sectional view taken along the line XX of FIG. That is, the third portion 73 is inserted into the second accommodating recess 52, and the first portion 71 is inserted into the third accommodating recess 53. At this time, the two lead terminals 61 are sandwiched between the two groove portions 730. As a result, the two lead terminals 61 are held in the ground terminal 7, and the ground terminal 7 is electrically connected to the two lead terminals 61. Since the ground terminal 7 has two groove portions 730, the two lead terminals 61 can be held together by attaching one ground terminal 7 to the holding member 4.
  • FIG. 11 is a cross-sectional view taken along the line XX of FIG. 1 and is a diagram illustrating a method of manufacturing a motor component according to an embodiment.
  • the method for manufacturing the motor component 100 of the present embodiment further includes a third step.
  • the holding member 4 is attached to the inside of the frame 3.
  • the ground terminal 7 is in contact with the frame 3, and the ground terminal 7 is electrically connected to the frame 3 (ground).
  • the first portion 71 of the ground terminal 7 is elastically deformed by being pushed by the frame 3 in the third step. The elasticity of the first portion 71 ensures the contact pressure between the ground terminal 7 and the frame 3.
  • the motor component 100 is manufactured. Since each capacitor 6 and the ground terminal 7 are individually attached to the holding member 4, the attachment is easier than in the case where the two capacitors 6 and the ground terminal 7 are connected to each other and then attached to the holding member 4. That is, since each capacitor 6 and the ground terminal 7 are smaller than the structure including the two capacitors 6 integrally connected and the ground terminal 7, it is easy to attach to the holding member 4. Further, the structure of the holding member 4 (two first accommodating recesses 51, a second accommodating recess 52, and a third accommodating recess 53) makes it possible to align each capacitor 6 and the ground terminal 7, so that the mounting is easy.
  • the shape of the inclined surface S1 may be curved in a predetermined cross section including the axis of the rotating shaft 221.
  • the predetermined cross section may be the cross section of FIG. 3, and the shape of the base 40 of the holding member 4 may be arcuate as shown by the two-dot chain line Z1 in FIG.
  • the inclined surfaces S1 and S2 have an arcuate shape.
  • the shapes of the inclined surfaces S1 and S2 are arcuate convex on the side opposite to the bearing 11 in the axial direction of the rotating shaft 221. That is, in the above-mentioned predetermined cross section, the shapes of the inclined surfaces S1 and S2 are formed by bending the portion between the bearing 11 and the frame 3 of the planar base 40 backward.
  • the inclined surfaces S1 and S2 have an arcuate shape, the axial component of the rotating shaft 221 among the forces applied from the holding member 4 to the bearing 11 can be made larger than that of the embodiment. There is. That is, the force for holding the bearing 11 may be increased.
  • one of the inclined surfaces S1 and S2 is present in the predetermined cross section. May be curved and the other may be linear.
  • the motor 1 is a brush motor, but the motor 1 may be a brushless motor.
  • the number of components in the embodiment may be changed as appropriate.
  • the number of capacitors 6 and the number of brushes 14 may be changed as appropriate.
  • the motor 1 may include a plurality of ground terminals 7. Each ground terminal 7 may hold the lead terminal 61 of one capacitor 6, or may hold the lead terminal 61 of two or more capacitors 6.
  • the ground terminal 7 does not have to sandwich the lead terminal 61 by itself, and the lead terminal 61 may be sandwiched between the ground terminal 7 and other members.
  • the ground terminal 7 may sandwich the lead terminal 61 between the ground terminal 7 and the holding member 4.
  • the lead terminal 61 may be a covered electric wire. Further, the lead terminal 61 may be stripped of the coating by inserting the lead terminal 61 into the groove 730 of the ground terminal 7. That is, the ground terminal 7 may function like an electrotap.
  • the ground terminal 7 may be a quick connection terminal.
  • the quick-connect terminal includes an elastic portion, and the lead terminal 61 is inserted into the quick-connect terminal while elastically deforming the elastic portion, and the elasticity of the elastic portion suppresses the lead terminal 61 from falling off.
  • the ground terminal 7 may be a crimp terminal.
  • the predetermined member 90 may have the configuration of the motor 1.
  • a predetermined member 90 which is a configuration of the motor 1, may transmit a force received from an external configuration (hydraulic pump or the like) of the motor 1 to the bearing 11.
  • the inclined surface S1 of the first surface 41 and the inclined surface S2 of the second surface 42 may be non-parallel.
  • the motor component (100) includes a capacitor (6) and a ground terminal (7).
  • the capacitor (6) has a capacitor element (63) and a lead terminal (61).
  • the lead terminal (61) is electrically connected to the capacitor element (63).
  • the ground terminal (7) is electrically connected to the ground (frame 3) and the lead terminal (61).
  • the ground terminal (7) holds the lead terminal (61) by sandwiching the lead terminal (61), and is electrically connected to the lead terminal (61).
  • the lead terminal (61) and the ground terminal (7) can be mechanically and electrically connected without soldering. Therefore, for example, the mechanical and electrical connection between the lead terminal (61) and the ground terminal (7) can be made in a short time as compared with the case where the lead terminal (61) and the ground terminal (7) are soldered. There are advantages such as completion.
  • the motor component (100) according to the second aspect further includes a holding member (4) in the first aspect.
  • the holding member (4) holds the ground terminal (7).
  • the ground terminal (7) can be incorporated into the holding member (4).
  • the holding member (4) has a temporary holding structure (54).
  • the temporary holding structure (54) holds the lead terminal (61) in a state where the lead terminal (61) is not held by the ground terminal (7).
  • the temporary holding structure (54) is provided at a plurality of locations in a state where the lead terminal (61) is not held by the ground terminal (7). Holds the lead terminal (61).
  • the possibility that the lead terminal (61) is displaced can be reduced as compared with the case where the temporary holding structure (54) holds the lead terminal (61) at one place.
  • the capacitor (6) further has a capacitor body (64).
  • the capacitor body (64) houses the capacitor element (63).
  • the holding member (4) holds the capacitor body (64).
  • At least one of the ground terminal (7) and the holding member (4) has a regulation structure (74).
  • the regulation structure (74) regulates the ground terminal (7) from separating from the lead terminal (61).
  • the ground terminal (7) can be fixed.
  • the ground terminal (7) has a groove portion (730).
  • the groove (730) has two inner surfaces (731) facing each other.
  • the ground terminal (7) sandwiches the lead terminal (61) between the two inner side surfaces (731).
  • the motor component (100) according to the eighth aspect includes a plurality of capacitors (6) in any one of the first to seventh aspects.
  • the ground terminal (7) holds the lead terminal (61) by sandwiching the lead terminal (61) of each of the plurality of capacitors (6), and is electrically connected to the lead terminal (61). ..
  • one ground terminal (7) can hold the lead terminals (61) of a plurality of capacitors (6).
  • Configurations other than the first aspect are not essential configurations for the motor component (100) and can be omitted as appropriate.
  • the motor (1) according to the ninth aspect includes a motor component (100) according to any one of the first to eighth aspects, and a motor main body (2).
  • the motor body (2) has a stator (21) and a rotor (22).
  • the rotor (22) includes a rotating shaft (221).
  • the rotation shaft (221) rotates with respect to the stator (21).
  • the lead terminal (61) and the ground terminal (7) can be mechanically and electrically connected without soldering.
  • the method for manufacturing the motor component (100) according to the tenth aspect is the method for manufacturing the motor component (100) including the capacitor (6), the ground terminal (7), and the holding member (4). ..
  • the capacitor (6) has a capacitor element (63) and a lead terminal (61).
  • the lead terminal (61) is electrically connected to the capacitor element (63).
  • the ground terminal (7) is electrically connected to the ground (frame 3) and the lead terminal (61).
  • the holding member (4) holds the ground terminal (7) and the lead terminal (61).
  • the manufacturing method includes a first step and a second step after the first step. In the first step, the holding member (4) holds the lead terminal (61). In the second step, the lead terminal (61) is sandwiched between the ground terminals (7) so that the ground terminal (7) holds the lead terminal (61) and the ground terminal (7) becomes the lead terminal (61). Connect electrically.
  • the lead terminal (61) and the ground terminal (7) can be mechanically and electrically connected without soldering.
  • various configurations (including modification) of the motor component (100) and the motor (1) according to the embodiment can be embodied by the manufacturing method of the motor component (100).

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

L'invention concerne un composant de moteur pourvu d'un condensateur et d'une borne de mise à la terre. Le condensateur comprend un élément condensateur et une borne de connexion. La borne de connexion est électriquement connectée à l'élément de condensateur. La borne de mise à la terre est électriquement connectée à un sol et à la borne de connexion. La borne de mise à la terre serre la borne de connexion, maintenant ainsi la borne de connexion, et est électriquement connectée à la borne de connexion.
PCT/JP2021/020474 2020-06-05 2021-05-28 Composant de moteur, moteur et procédé de fabrication de composant de moteur WO2021246335A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202180039689.7A CN115668705A (zh) 2020-06-05 2021-05-28 马达部件、马达和马达部件的制造方法
JP2022528806A JPWO2021246335A1 (fr) 2020-06-05 2021-05-28

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-098835 2020-06-05
JP2020098835 2020-06-05

Publications (1)

Publication Number Publication Date
WO2021246335A1 true WO2021246335A1 (fr) 2021-12-09

Family

ID=78830253

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/020474 WO2021246335A1 (fr) 2020-06-05 2021-05-28 Composant de moteur, moteur et procédé de fabrication de composant de moteur

Country Status (3)

Country Link
JP (1) JPWO2021246335A1 (fr)
CN (1) CN115668705A (fr)
WO (1) WO2021246335A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012044814A (ja) * 2010-08-20 2012-03-01 Asmo Co Ltd モータ装置及びポンプ装置
JP2018198475A (ja) * 2017-05-23 2018-12-13 株式会社デンソー モータの給電装置及びモータ
JP2018207710A (ja) * 2017-06-07 2018-12-27 矢崎総業株式会社 電子部品内蔵ユニット
US20190149020A1 (en) * 2016-06-09 2019-05-16 Lg Innotek Co., Ltd. Ground terminal, cover assembly and motor comprising same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012044814A (ja) * 2010-08-20 2012-03-01 Asmo Co Ltd モータ装置及びポンプ装置
US20190149020A1 (en) * 2016-06-09 2019-05-16 Lg Innotek Co., Ltd. Ground terminal, cover assembly and motor comprising same
JP2018198475A (ja) * 2017-05-23 2018-12-13 株式会社デンソー モータの給電装置及びモータ
JP2018207710A (ja) * 2017-06-07 2018-12-27 矢崎総業株式会社 電子部品内蔵ユニット

Also Published As

Publication number Publication date
JPWO2021246335A1 (fr) 2021-12-09
CN115668705A (zh) 2023-01-31

Similar Documents

Publication Publication Date Title
JP4855239B2 (ja) モータ用絶縁ハウジング
JP2608710B2 (ja) 電動工具用整流子電動機における配線装置
JP3997208B2 (ja) コネクタの固定構造
US20150280509A1 (en) Electric motor
JP3696556B2 (ja) モータ
WO2017073290A1 (fr) Borne
EP0607032B1 (fr) Moteur miniature
CN108028558B (zh) 旋转电机以及旋转电机的制造方法
JP2013005705A (ja) ポンプ用直流電動機
WO2021246335A1 (fr) Composant de moteur, moteur et procédé de fabrication de composant de moteur
WO2021246090A1 (fr) Composant de moteur et moteur
JP2019192520A (ja) 電池端子ユニット及び電池端子ユニットの製造方法
JP3773853B2 (ja) ブラシホルダ及び電動モータ
US10903712B2 (en) Motor having a housing structure to accommodate grounding conductor
US6841904B2 (en) Resolver terminal attachment structure
JPWO2021246335A5 (fr)
JPWO2019215776A1 (ja) 回転電機
WO2021131661A1 (fr) Dispositif électrique
CN108886295B (zh) 马达和马达的制造方法
JP2020127249A (ja) 電気接続箱
JP7347949B2 (ja) モータ用ステータ及び同製造方法
CN111864951B (zh) 回转机械的端子连接结构
JP7263982B2 (ja) 回転電機用配線部材、回転電機用配線部材の固定構造、及び回転電機
JP4692386B2 (ja) 端末モジュールを有する回転機
JP7218854B2 (ja) 回転電機、インシュレータ、およびそのアセンブリ方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21818174

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022528806

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21818174

Country of ref document: EP

Kind code of ref document: A1