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WO2018043364A1 - Structure de fixation d'enroulement et moteur électrique - Google Patents

Structure de fixation d'enroulement et moteur électrique Download PDF

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Publication number
WO2018043364A1
WO2018043364A1 PCT/JP2017/030647 JP2017030647W WO2018043364A1 WO 2018043364 A1 WO2018043364 A1 WO 2018043364A1 JP 2017030647 W JP2017030647 W JP 2017030647W WO 2018043364 A1 WO2018043364 A1 WO 2018043364A1
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WO
WIPO (PCT)
Prior art keywords
outer peripheral
terminal block
peripheral side
inner peripheral
insulator
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2017/030647
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English (en)
Japanese (ja)
Inventor
賢人 日根
宗忠 佐藤
康仁 塩谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
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 Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Priority to CN201780052034.7A priority Critical patent/CN109643926B/zh
Priority to JP2018537236A priority patent/JP6924934B2/ja
Publication of WO2018043364A1 publication Critical patent/WO2018043364A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • 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

  • the present invention relates to a winding fixing structure and an electric motor.
  • the end of the wound winding inside the electric motor is entangled with a terminal pin provided in the insulator, and then engaged with the terminal block from the top surface direction of the insulator, and the terminal What fixes a stand is known.
  • a terminal hole for inserting a terminal pin is conventionally provided in the terminal block, and the terminal pin provided in the insulator is inserted into the terminal hole and soldered to hold the terminal block (for example, see Patent Document 1).
  • FIG. 9 is a cross-sectional view showing a conventional electric motor.
  • the electric motor 100 is formed by a housing 101, a stator core 102, an insulator 103, a terminal block 107, a shaft 109, and terminal pins 121.
  • the terminal pin 121 inserted into the insulator 103 passes through the terminal hole for inserting the terminal pin 121 provided in the terminal block 107 and is soldered, so that the insulator 103 and the terminal block 107 are engaged and held. Yes. Thereby, the terminal block can be attached to the inside of the electric motor 100.
  • a mechanism for engaging with a terminal block is provided in an integrally formed insulator.
  • an insulator is constituted by a plurality of divided members, and a mechanism that engages with a terminal block is provided only in a part of the plurality of members.
  • a plurality of molds are required to manufacture an insulator having a plurality of shapes, leading to an increase in cost.
  • another member for engaging the insulator and the terminal block was necessary.
  • the present invention improves such a conventional problem, and can provide a winding fixing structure that can simplify the insulator with the same shape, improve the versatility of the insulator, and reduce the die cost. It aims at providing the electric motor provided with.
  • a winding fixing structure includes an insulator provided on a stator core disposed on the outer peripheral side of a cylindrical rotor that rotates about a rotation axis, and a winding wound around the insulator.
  • the terminal block has a protruding portion protruding toward the insulator on one plate-like surface, and a tip of the protruding portion.
  • a terminal block side engaging portion that engages with the insulator.
  • the insulator includes a plurality of insulating members that are connected in the circumferential direction to cover the stator core, and an insulating member side engaging portion that engages with the terminal block side engaging portion by the insulating member. This achieves the intended purpose.
  • FIG. 1 is a cross-sectional view showing an electric motor according to Embodiments 1, 2, and 3 of the present invention.
  • 2A is a plan view of an insulating member of the electric motor according to Embodiment 1.
  • FIG. 2B is a cross-sectional view taken along the line 2B-2B of FIG. 2A.
  • FIG. 3 is a perspective view of the terminal block of the electric motor according to the first embodiment.
  • 4A is a perspective view when the terminal block and the insulator of the electric motor according to Embodiment 1 are engaged.
  • FIG. FIG. 4B is a perspective view in which insulator 3 and terminal block 5 of electric motor 1 according to Embodiment 1 are engaged.
  • FIG. 5 is a simplified diagram showing the shapes and positional relationships of the outer peripheral side engaging portion, the inner peripheral side engaging portion, the clamping portion, the inner peripheral wall, and the outer peripheral wall in the terminal block and insulator of the electric motor according to Embodiment 1.
  • FIG. 6 is a simplified diagram showing an enlarged view of a gap generated between the bottom surface of the terminal block of the electric motor according to Embodiment 1 and the opening surface of the terminal pin insertion hole.
  • FIG. 7 is a cross-sectional view showing a simple positional relationship when the terminal block and the insulator of the electric motor according to the modification are engaged.
  • FIG. 8 is a cross-sectional view showing a simple positional relationship when the terminal block and the insulator of the electric motor according to the modification are engaged.
  • FIG. 9 is a cross-sectional view showing a conventional electric motor.
  • the winding fixing structure fixes an insulator provided on a stator core disposed on the outer peripheral side of a cylindrical rotor that rotates about a rotation axis, and an end of a winding wound around the insulator.
  • the terminal block includes a protruding portion protruding toward the insulator on one surface of the plate shape, and a terminal block side engagement that engages the insulator at the tip of the protruding portion.
  • the insulator includes a plurality of insulating members that are connected in the circumferential direction to cover the stator core, and an insulating member side engaging portion that engages with the terminal block side engaging portion by the insulating member.
  • the insulator and the terminal block are provided with engaging portions that engage with each other. Therefore, the insulator and the terminal block can be engaged without using an additional member.
  • the insulating member includes an inner peripheral wall corresponding to the inner periphery of the stator core and an outer peripheral wall corresponding to the outer periphery of the stator core.
  • the protrusion includes an inner peripheral protrusion corresponding to the inner peripheral wall and an outer peripheral protrusion corresponding to the outer peripheral wall.
  • the inner peripheral protrusion includes a terminal block inner peripheral engagement portion that engages with the inner peripheral wall at the tip.
  • the terminal block inner peripheral engagement portion is an engagement claw that urges the inner peripheral wall from the outer peripheral side to the inner peripheral side at the tip of the inner peripheral protrusion.
  • the terminal block has an inner peripheral side end that is the same as the inner peripheral wall or located outside the inner peripheral wall.
  • the terminal block can be prevented from being displaced when stress is applied to the terminal block from the outer periphery of the stator core to the inner periphery.
  • terminal block may be provided with a clamping portion that clamps the outer peripheral wall with the outer peripheral side protruding portion on the inner peripheral side of the outer peripheral side protruding portion.
  • the sandwiching portion includes a sandwiching engagement portion that engages with the outer peripheral wall at the tip.
  • the sandwiching engagement portion is an engagement claw that biases the outer peripheral wall from the inner peripheral side to the outer peripheral side at the tip of the sandwiching portion.
  • the terminal block can be prevented from being displaced when stress is applied to the terminal block from the outer periphery of the stator core to the inner periphery.
  • the outer peripheral side protruding portion includes a terminal block outer peripheral side engaging portion that engages with the outer peripheral wall at the tip.
  • the terminal block outer peripheral side engaging portion is an engaging claw that biases the outer peripheral wall from the outer peripheral side to the inner peripheral side at the tip of the outer peripheral side protruding portion.
  • the terminal block can be prevented from being displaced when stress is applied to the terminal block from the outer periphery of the stator core to the inner periphery.
  • the terminal block includes a plate-like support portion that protrudes toward the insulator on the same circumference as the inner-side protrusion portion, and the plate-like support portion is a terminal on the inner peripheral wall over at least two adjacent inner peripheral walls. You may contact
  • the terminal block includes a plate-like support portion that protrudes toward the insulator on the same circumference as the outer peripheral-side protruding portion, and the plate-like support portion extends over at least two adjacent outer peripheral walls. You may contact
  • the length of the protruding portion in the rotation axis direction is predetermined between the terminal block side end surface of the insertion hole for inserting the terminal pin provided in the insulator and the terminal hole for inserting the terminal pin provided in the terminal block.
  • the width in the axial direction of the gap may be larger than the diameter of the winding.
  • FIG. 1 is a cross-sectional view showing an electric motor 1 according to Embodiment 1 of the present invention.
  • 2A is a plan view of insulating member 33a of electric motor 1 according to Embodiment 1.
  • FIG. 2B is a cross-sectional view taken along line 2B-2B in FIG. 2A.
  • FIG. 3 is a perspective view of the terminal block 5 of the electric motor 1 according to the first embodiment.
  • the electric motor 1 is an add-on type AC motor, and is used as a drive source of an electric fan, for example.
  • the electric motor 1 includes a rotor 6 (rotor), a stator 2, and a shaft 9 (rotary shaft).
  • the rotor 6 and the stator 2 are covered with a housing 7a and a housing 7b. That is, the housing 7a and the housing 7b constitute an outer shell of the electric motor 1.
  • the rotor 6 is obtained by pouring aluminum alloy into the rotor core and solidifying it.
  • the rotor 6 has a cylindrical shape, and is fixed to a shaft 9 that penetrates the top surface (upper side in FIG. 1) and the bottom surface (lower side in FIG. 1) of the cylindrical shape.
  • the shaft 9 has a cylindrical rod shape, and a bearing 10a is inserted on the top surface side of the rotor 6 and a bearing 10b is inserted on the bottom surface side.
  • the bearing 10a and the bearing 10b can rotate the inner ring and the outer ring independently between the inner ring which is a cylindrical ring, the outer ring which is a cylindrical ring and has a diameter larger than the inner ring, and the inner ring and the outer ring. And a plurality of rolling elements held on the
  • the bearing 10a has an outer ring fixed to the bottom surface of the housing 7a (upper side in FIG. 1), and the bearing 10b has the outer ring fixed to the bottom surface of the housing 7b (lower side in FIG. 1).
  • the inner rings of the bearing 10a and the bearing 10b are fixed to the shaft 9, respectively.
  • the stator 2 has a cylindrical shape and includes a stator core 15 (stator core), an insulator 3, a winding 4, and a terminal block 5.
  • the stator core 15 has a cylindrical shape formed by stacking donut-shaped iron plates.
  • the rotor 6 is positioned in the central cylindrical space, that is, the inner hole. That is, the shaft 9 connected to the rotor 6 serves as a rotation axis, and the rotor 6 rotates.
  • the stator core 15 has a plurality of slots penetrating from the top surface to the bottom surface, that is, a space for winding a winding.
  • the insulator 3 is a resin-molded insulator, and is inserted into the slot of the stator core 15 from the axial direction.
  • the insulator 3 includes an insulator 3a on the top surface side (upper side in FIG. 1) and an insulator 3b on the bottom surface side (lower side in FIG. 1). That is, the insulators 3a and 3b are inserted to face the cylindrical stator core 15 from the top surface and the bottom surface.
  • the insulator 3a is formed by connecting a plurality of insulating members 33a shown in FIGS. 2A and 2B, and the cylindrical insulator 3a is formed by connecting the insulating members 33a in the circumferential direction of the stator core 15.
  • the insulator 3 b is formed by connecting the insulating member 33 b in the circumferential direction of the stator core 15.
  • the slots provided in the stator core 15 can be covered with the insulating members 33a and 33b.
  • all the insulating members 33a connected and inserted from the top surface side have the same shape.
  • all the insulating members 33b connected and inserted from the bottom surface side have the same shape.
  • the insulating members 33a and 33b may have the same shape.
  • the insulating member 33 a includes an inner peripheral wall 13 corresponding to the inner periphery of the stator core 15 and an outer peripheral wall 14 corresponding to the outer periphery of the stator core 15.
  • the inner peripheral wall 13 corresponds to the inner periphery of the stator core 15.
  • the outer peripheral wall 14 corresponds to the outer periphery of the stator core 15. That is, when the insulating member 33 a is inserted into the stator core, the outer peripheral wall 14 is inserted along the outer peripheral surface of the stator core 15. To tell.
  • the insulating member 33 a includes an inner peripheral side engaging portion 16 on the inner peripheral wall 13 and an outer peripheral side engaging portion 17 on the outer peripheral wall 14 in order to engage and hold the terminal block 5.
  • the inner peripheral side engaging portion 16 and the outer peripheral side engaging portion 17 constitute an insulating member side engaging portion 34.
  • the insulating member 33 a includes a terminal block side top 27 on the inner peripheral wall 13. The terminal block side top 27 is the highest position on the terminal block 5 side of the inner peripheral wall 13. Details of each engaging portion will be described later.
  • a cylindrical insulator 3a is formed by connecting a plurality of insulating members 33a in the circumferential direction.
  • the insulator 3a is inserted from the top surface side into slots formed at equal intervals in the circumferential direction formed in the stator core 15.
  • the cylindrical insulator 3b is formed by connecting the plurality of insulating members 33b in the circumferential direction.
  • the insulator 3 b is inserted from the bottom surface side into a slot formed in the circumferential direction formed in the stator core 15.
  • the terminal pin insertion hole 12 for providing the terminal pin 11 is provided in the top
  • the terminal pin 11 is entangled with the end of the winding 4 wound around the insulator 3.
  • the upper direction means the upper part of the cross-sectional view of FIG. 2B and indicates the same direction as the top side.
  • the winding 4 is a copper wire with an insulating coating, and is wound on the insulator 3 inserted in the slot of the stator core 15 so as not to contact the stator core 15.
  • the terminal block 5 is a resin-molded plate-like insulator, and is provided, for example, on the top surface side of the stator core 15, that is, on the insulator 3a side. As shown in FIG. 3, the terminal block 5 includes a plurality of terminal holes 18 through which the terminal pins 11 can pass.
  • the terminal block 5 includes an inner peripheral protruding portion 19 and an outer peripheral protruding portion 20 on one plate-like surface in order to engage and hold with the insulator 3a.
  • the inner peripheral protrusion 19 corresponds to the inner peripheral wall 13
  • the outer peripheral protrusion 20 corresponds to the outer peripheral wall 14.
  • the phrase “the inner peripheral protrusion 19 corresponds to the inner peripheral wall 13” means that the inner peripheral protrusion 19 protrudes toward the inner peripheral wall 13.
  • the outer peripheral side protruding part 20 corresponds to the outer peripheral wall 14 means that the outer peripheral side protruding part 20 protrudes toward the outer peripheral wall 14.
  • the inner peripheral side protrusion part 19 is provided with the terminal block inner peripheral side engaging part 24 engaged with the inner peripheral wall 13 in the front-end
  • the outer peripheral side protrusion part 20 is provided with the terminal block outer peripheral side engaging part 25 engaged with the outer peripheral wall 14 at the tip.
  • the terminal block inner periphery side engaging portion 24 and the terminal block outer periphery side engaging portion 25 constitute a terminal block side engaging portion 35.
  • the terminal block 5 is provided with a holding part 21 for holding the outer peripheral wall 14 with the outer peripheral side protruding part 20 during installation on the outer peripheral side of the inner peripheral side protruding part 19 and on the inner peripheral side of the outer peripheral side protruding part 20. I have.
  • the terminal block 5 is provided with a plate-like support portion 22 protruding toward the insulator 3 on the inner peripheral wall 13 side at the time of installation.
  • the insulator 3 and the terminal block 5 having these engaging shapes constitute a winding fixing structure.
  • FIG. 2A the details of each component and the positional relationship of each component when the insulator 3a and the terminal block 5 are engaged will be described with reference to FIGS. 2A to 6.
  • FIG. 2A the details of each component and the positional relationship of each component when the insulator 3a and the terminal block 5 are engaged will be described with reference to FIGS. 2A to 6.
  • FIG. 4A is a perspective view when engaging the insulator 3 and the terminal block 5 of the electric motor 1 according to Embodiment 1.
  • FIG. FIG. 4B is a perspective view in which insulator 3 and terminal block 5 of electric motor 1 according to Embodiment 1 are engaged. As shown in FIGS. 4A and 4B, the terminal block 5 is inserted into the insulator 3 from the top surface side, and the terminal block 5 and the insulator 3 are engaged. For simplification, the winding 4 and the rotor 6 are omitted in FIGS. 4A and 4B.
  • FIG. 5 is a cross-sectional view showing a simplified positional relationship when the terminal block 5 and the insulator 3 of the electric motor 1 according to Embodiment 1 are engaged.
  • the inner peripheral side engaging portion 16 provided on the inner peripheral wall 13 and the terminal block inner peripheral side engaging portion 24 are engaged on the inner peripheral side. In other words, the inner peripheral wall 13 and the terminal block inner peripheral side engaging portion are engaged.
  • the inner peripheral side engaging portion 16 is a hole formed in the inner peripheral wall 13 of the insulating material 33a and penetrating the inner peripheral wall 13 in the radial direction.
  • the inner peripheral side engaging part 16 is a through-hole, it does not need to penetrate.
  • the inner peripheral protruding portion 19 is a support column that protrudes downward from the bottom surface on the inner peripheral end portion side of the terminal block 5 so as to correspond to the inner peripheral wall 13. Further, the inner peripheral side protruding portion 19 is located outside the inner periphery of the stator core 15. A claw-shaped terminal block inner peripheral engagement portion 24 is provided at the tip of the inner peripheral protrusion 19. Note that the tip here means the vicinity of the tip of the inner peripheral projection 19. Therefore, the terminal block inner peripheral side engaging portion 24 is not necessarily provided at the most distal end portion of the inner peripheral side protruding portion 19.
  • the terminal block inner periphery side engaging portion 24 is an engaging claw protruding in one direction as a specific shape.
  • the tip of the engaging claw that is the terminal block inner periphery side engaging portion 24 is directed toward the shaft 9.
  • the tip of the engaging claw is inserted from the outer peripheral side of the inner peripheral side engaging portion 16, whereby the inner peripheral side engaging portion 16 and the terminal block inner peripheral side engaging portion 24 are engaged. That is, the inner peripheral side of the terminal block 5 is engaged and held by the inner peripheral wall 13 of the insulator 3. Further, it can be said that the terminal block inner peripheral side engaging portion 24 is an engaging claw that biases the inner peripheral wall 13 from the outer peripheral side to the inner peripheral side.
  • the outer peripheral side engaging portion 17 provided on the outer peripheral wall 14 and the terminal block outer peripheral side engaging portion 25 are engaged.
  • the outer peripheral wall 14 and the terminal block outer peripheral side engaging portion 25 are engaged.
  • the outer peripheral wall 14 is sandwiched between the outer peripheral protruding portion 20 and the sandwiching portion 21.
  • the outer peripheral side engaging portion 17 is formed on the outer peripheral wall 14 of the insulating material 33a, and has a concave shape with the opening portion facing in the outer peripheral direction.
  • the outer peripheral protruding portion 20 is a column that protrudes downward from the outer peripheral end of the terminal block 5 in correspondence with the outer peripheral wall 14.
  • a claw-shaped terminal block outer peripheral side engaging portion 25 is provided at the tip of the outer peripheral side protruding portion 20.
  • the terminal block outer peripheral side engaging portion 25 is an engaging claw that protrudes in one direction as a specific shape.
  • the tip of the engaging claw that is the terminal block outer periphery side engaging portion 25 is directed toward the shaft 9.
  • the distal end of the engaging claw is inserted into the concave opening of the outer peripheral side engaging portion 17 from the outer peripheral side, whereby the outer peripheral side engaging portion 17 and the terminal block outer peripheral side engaging portion 25 are engaged. That is, the outer peripheral side of the terminal block 5 is engaged and held by the outer peripheral wall 14 of the insulator 3.
  • the terminal block outer peripheral side engaging portion 25 is an engaging claw that biases the outer peripheral wall 14 from the outer peripheral side to the inner peripheral side.
  • the clamping portion 21 is a support column that is located on the outer peripheral side from the inner peripheral side protruding portion 19 and on the inner peripheral side from the outer peripheral side protruding portion 20 and protrudes downward from the bottom surface of the terminal block 5.
  • the sandwiching portion 21 contacts the inner peripheral side of the outer peripheral wall 14 above the insulator 3.
  • maintains the outer peripheral side of the outer peripheral wall 14
  • maintains the inner peripheral side of the outer peripheral wall 14.
  • the plate-like support portion 22 is located on the same plane as the inner peripheral wall 13, that is, on the same circumference as the inner peripheral side protruding portion 19. Further, the plate-like support portion 22 projects downward from the bottom surface of the inner peripheral side end portion of the terminal block 5 and protrudes in a plate shape along the circumference of the inner peripheral wall 13. Moreover, the circumferential length of the plate-like support portion 22 is at least the length of two adjacent inner peripheral walls 13. Further, the axial length (height) of the plate-like support portion 22 is set at the upper portion of the inner peripheral wall 13 when the terminal block 5 and the insulator 3 are engaged and held as shown in FIG. Is the length of contact.
  • FIG. 6 is a schematic diagram showing an enlarged view of a gap generated between the bottom surface of the terminal block 5 and the opening surface of the terminal pin insertion hole 12 of the electric motor 1 according to the first embodiment.
  • the length of the clearance in the rotation axis direction is such that when the terminal block 5 and the insulator 3 are engaged, the opening surface of the terminal pin insertion hole 12, that is, the terminal block side end surface, and the insulator of the terminal hole 18.
  • the distance (gap) between the three side surfaces is longer than the diameter of the winding 4.
  • FIG. 6 illustrates the case where the terminal pin 11 is on the inner peripheral side, the terminal pin 11 may be on the outer peripheral side.
  • the above is the structure of the electric motor 1, the winding fixing structure, each engaging portion, and their positional relationship.
  • the terminal pins 11 are inserted into the terminal pin insertion holes 12. After the terminal pin 11 is inserted, the end of the winding 4 is wound around the terminal pin 11, and the winding 4 is wound so as to cover the insulator 3 provided in the stator core 15. Thereafter, the terminal block 5 is pushed into the insulator 3a from the top side so as to penetrate the terminal pin 11 into the terminal hole 18 (see FIGS. 4A and 4B).
  • the inner peripheral side engaging portion 16 When pushed, the inner peripheral side engaging portion 16 is engaged with the inner peripheral side engaging portion 24, that is, the engaging claw, from the outer peripheral side, and the outer peripheral side engaging portion 17 is engaged with the outer peripheral side of the terminal block outer periphery.
  • the side engaging portion 25, that is, the engaging claw is engaged.
  • the tip of the holding portion 21 comes into contact with the outer peripheral wall 14 of the insulator 3 and is biased from the inner peripheral side toward the outer peripheral side. That is, the clamping part 21 will be located in the inner peripheral side of the outer peripheral wall 14, and it will become possible to suppress the position shift to the outer peripheral side of the terminal block 5.
  • the gap formed between the terminal hole 18 and the terminal pin insertion hole 12 is larger than the diameter of the winding, the winding 4 tangled to the terminal pin 11 is connected to the bottom surface of the terminal hole 18 and the terminal pin insertion hole 12. It is possible to suppress the disconnection between the surfaces of the terminal block 5 in the vertical direction.
  • the plate-like support portion 22 comes into contact with the highest position on the terminal block 5 side of the plural (at least two) inner peripheral walls 13, that is, the terminal block side top portion 27.
  • the plurality of insulating members 33a constituting the insulator 3a are made of resin and are relatively soft, and when a plurality of insulating members 33a are connected in the circumferential direction, a wavy distortion is formed depending on the accuracy.
  • the plate-like support part 22 plays a role of correcting distortion.
  • the insulating member 33 a constituting the insulator 3 a is made the same, That is, the shape can be simplified.
  • the insulating member 33b constituting the insulator 3b can be made the same to simplify the shape. Thereby, it is possible to reduce the mold cost of the insulator 3.
  • the inner peripheral protrusion 19 is positioned on the outer peripheral side of the innermost periphery of the stator 2, and the inner peripheral end of the terminal block 5 Is located on the outer peripheral side of the inner peripheral wall 13 or the same as the inner peripheral wall 13. Therefore, the rotor 6 can be easily inserted into the stator 2 without being obstructed by the terminal block 5.
  • FIG. 7 and 8 are cross-sectional views showing a simple positional relationship when the terminal block 5 and the insulator 3 of the electric motor 1 according to the modification are engaged.
  • the outer peripheral side engaging portion 17 is provided with two concave portions that open toward the outer peripheral side and the inner peripheral side.
  • the terminal block outer peripheral side engaging part 25 which is an engaging claw is provided in the front-end
  • a sandwiching engagement portion 26 is provided at the tip of the sandwiching portion 21.
  • the clamping engagement portion 26 is provided with a clamping engagement portion 26 that is an engagement claw toward the outer peripheral side.
  • the outer peripheral side engaging portion 17 is provided with a concave portion that opens toward the inner periphery.
  • the outer peripheral side protrusion part 20 is not provided with the engagement nail
  • the engaging claw which protrudes toward an outer peripheral side as the clamping part engaging part 26 provided in the front-end
  • the outer peripheral side engaging portion 17 is not provided with a concave portion, and the outer peripheral side protruding portion 20 and the clamping portion 21 are connected to the outer peripheral side engaging portion 17, that is, the outer peripheral The wall 14 may be urged and held.
  • the engaging claw is not provided at the distal end of the outer peripheral projection 20 and the distal end of the clamping portion 21.
  • the plate-like support portion 22 may be provided on the outer peripheral wall 14 side. That is, the plate-like support portion 22 is positioned on the same surface as the outer peripheral wall 14, that is, on the same circumference as the outer peripheral side protruding portion 20, and is directed downward from the bottom surface of the outer peripheral side end portion of the terminal block 5. It protrudes in a plate shape along the circumference. Moreover, the circumferential length of the plate-like support portion 22 is at least the length of two adjacent outer peripheral walls. Further, the length (height) in the axial direction of the plate-like support portion 22 is set such that the plate-like support portion 22 contacts the upper portion of the outer peripheral wall 14 when the terminal block 5 and the insulator 3 are engaged and held.
  • the plate-like support portion 22 may be provided on both the outer peripheral wall 14 and the inner peripheral wall 13. In this case, the stability of the insulator 3 is increased as compared with that provided on one side.
  • the motor according to the present invention improves the versatility of the insulator by simplifying the insulator, reduces the cost of the insulator mold, reduces the disconnection failure of the winding during assembly of the motor, simplifies the assembly work, It is possible to suppress deviation when the insulator is fixed, and for example, it can be applied to an electric motor for driving a fan.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

Une structure de fixation d'enroulement est équipée : d'un isolant disposé sur un noyau de stator disposé sur le côté périphérique externe d'un rotor cylindrique qui tourne autour d'un arbre rotatif ; et d'une base de borne en forme de plaque (5) permettant de fixer les extrémités d'enroulements enroulés sur l'isolant. La base de borne est équipée de parties saillantes (19, 20) faisant saillie vers l'isolant à partir d'une surface en forme de plaque, et de parties de mise en prise côté base de borne (24, 25) qui viennent en prise avec l'isolant au niveau de l'extrémité de pointe des parties saillantes. L'isolant est équipé de multiples éléments d'isolation qui sont connectés dans la direction périphérique et recouvrent le noyau de stator, et de parties de mise en prise côté élément d'isolation, dans les éléments d'isolation, qui viennent en prise avec les parties de mise en prise côté base de borne.
PCT/JP2017/030647 2016-08-30 2017-08-28 Structure de fixation d'enroulement et moteur électrique Ceased WO2018043364A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780052034.7A CN109643926B (zh) 2016-08-30 2017-08-28 绕组固定结构体和电动机
JP2018537236A JP6924934B2 (ja) 2016-08-30 2017-08-28 巻線固定構造体、及び電動機

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-167438 2016-08-30
JP2016167438 2016-08-30

Publications (1)

Publication Number Publication Date
WO2018043364A1 true WO2018043364A1 (fr) 2018-03-08

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PCT/JP2017/030647 Ceased WO2018043364A1 (fr) 2016-08-30 2017-08-28 Structure de fixation d'enroulement et moteur électrique

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CN (1) CN109643926B (fr)
WO (1) WO2018043364A1 (fr)

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WO2020166244A1 (fr) * 2019-02-12 2020-08-20 サンデン・オートモーティブコンポーネント株式会社 Compresseur électrique
DE102023110802A1 (de) 2023-04-26 2024-10-31 Borgwarner Inc. Spulenanordnung

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CN110855048B (zh) * 2019-11-19 2021-06-15 珠海凯邦电机制造有限公司 一种用于集成电机的定子附件、电机定子和集成电机
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