WO2021131176A1 - Alarme de véhicule et procédé de fabrication d'un solénoïde - Google Patents

Alarme de véhicule et procédé de fabrication d'un solénoïde Download PDF

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Publication number
WO2021131176A1
WO2021131176A1 PCT/JP2020/034335 JP2020034335W WO2021131176A1 WO 2021131176 A1 WO2021131176 A1 WO 2021131176A1 JP 2020034335 W JP2020034335 W JP 2020034335W WO 2021131176 A1 WO2021131176 A1 WO 2021131176A1
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WO
WIPO (PCT)
Prior art keywords
accommodating groove
magnet wire
groove portion
end side
guide wall
Prior art date
Application number
PCT/JP2020/034335
Other languages
English (en)
Japanese (ja)
Inventor
勇希 泉
Original Assignee
浜名湖電装株式会社
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 浜名湖電装株式会社 filed Critical 浜名湖電装株式会社
Priority to CN202080089550.9A priority Critical patent/CN114846538A/zh
Publication of WO2021131176A1 publication Critical patent/WO2021131176A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
    • G10K9/15—Self-interrupting arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets

Definitions

  • the disclosure in this specification relates to a method for manufacturing a vehicle horn and a solenoid part.
  • Patent Document 1 discloses a method of irradiating a green laser to remove an insulating film of a conducting wire.
  • An object of the disclosure of this specification is to provide a method for manufacturing a vehicle horn and a solenoid part capable of installing a laser-irradiated winding wire in an appropriate position in order to remove an insulating film.
  • One of the disclosed vehicle alarms has a housing, a solenoid portion having a solenoid wire provided inside the housing and having a magnet wire wound around the bobbin portion, and a bobbin portion at one end of the magnet wire.
  • An insulator having a first accommodating groove for accommodating a side portion and a second accommodating groove for accommodating the other end side, a fixed iron core magnetized by a solenoid portion, and a movable iron core attracted by the magnetized fixed iron core.
  • a vibrating plate that is coupled to the movable iron core and vibrates with the movement of the sucked movable iron core, a fixed contact support plate having a fixed contact portion, and energization to the solenoid portion is cut off.
  • a movable contact support plate having a movable contact portion that comes into contact with the fixed contact portion and separates from the fixed contact portion when the solenoid portion is energized.
  • the exposed electric wire portion from which the insulating film has been removed is in contact with the conductor.
  • Each of the first accommodating groove portion and the second accommodating groove portion has an opening width dimension larger than the outer diameter dimension of the magnet wire, and has a guide wall forming a surface for guiding the magnet wire to a predetermined position. ..
  • one end side of a magnet wire inserted through an opening wider than the wire diameter can be accommodated at a predetermined position in the first accommodating groove by a guide wall. Further, the other end side portion of the magnet wire inserted through the opening having a width wider than the wire diameter can be accommodated at a predetermined position of the second accommodating groove portion by the guide wall.
  • the vehicle horn has a configuration in which one end side portion and the other end side portion of the magnet wire can be set at appropriate positions in the groove width direction of each accommodation groove portion. Therefore, when laser irradiation is used to remove the insulating film, the magnet wire can be accurately irradiated with the laser.
  • this disclosure can provide a vehicle horn capable of installing a laser-irradiated winding wire in an appropriate position to remove an insulating film.
  • One of the disclosed methods for manufacturing a solenoid portion is a first method having an opening width dimension larger than the outer diameter dimension of the magnet wire and a guide wall capable of guiding the magnet wire to a predetermined position.
  • a guide wall by inserting the winding start portion accommodating step, the step of winding the magnet wire around the bobbin portion of the insulator, and the other end side extending from the magnet wire wound around the bobbin portion through the opening of the second accommodating groove portion.
  • a step of accommodating the winding end portion, which is brought to a predetermined position and accommodated in the second accommodating groove portion, a step of irradiating the portion of the magnet wire accommodated in each of the first accommodating groove portion and the second accommodating groove portion with a laser, and the first A conduction step is provided in which a portion of the magnet wire accommodated in each of the accommodating groove portion and the second accommodating groove portion is brought into contact with a predetermined conductor.
  • one end side of the magnet wire can be accommodated at a predetermined position in the first accommodating groove portion in the winding start accommodating step. Further, in the winding end accommodating step, the other end side portion of the magnet wire can be accommodated at a predetermined position in the second accommodating groove portion. Thereby, one end side portion and the other end side portion of the magnet wire can be set at appropriate positions in the groove width direction of each accommodation groove portion. Since the laser irradiation is performed on the one end side portion and the other end side portion of the magnet wire in a state of being set at appropriate positions, it is possible to suppress the laser irradiation on the surrounding objects of the magnet wire.
  • this disclosure can provide a method of manufacturing a solenoid portion capable of installing a winding electric wire irradiated with a laser in order to remove an insulating film at an appropriate position.
  • FIG. 1 shows a cross section taken along the line II of FIG.
  • FIG. 2 shows the internal structure of the vehicle horn 10 of FIG. 1 from which the movable iron core 4, the diaphragm 3, and the like are removed, as viewed in the direction of arrow II of FIG.
  • the vehicle horn 10 which is an example of the vehicle horn that can achieve the purpose of disclosure in the specification will be described with reference to FIGS. 1 to 4.
  • the vehicle horn 10 is a device mounted on a vehicle such as an automobile or a motorcycle to generate a warning sound to the outside, and is also called an electromagnetic horn.
  • the vehicle horn 10 emits an alarm sound to the outside of the vehicle when a predetermined operation unit in the vehicle is operated.
  • a predetermined operating unit is, for example, a horn switch provided on a steering wheel or a steering wheel, which is operated by an occupant.
  • the vehicle horn 10 is an electromagnetic alarm device that generates an alarm sound according to the operating voltage.
  • the vehicle horn 10 is attached to the front part of the vehicle, for example, the front part of the radiator, or the like, via the stay 5.
  • the vehicle horn 10 is mounted on the vehicle in a posture in which the movable iron core 4 is positioned in front of the fixed iron core 22 and the axial directions of the movable iron core 4 and the fixed iron core 22 are aligned in the front-rear direction.
  • the vehicle horn 10 includes a bottomed and tubular housing 1 and a solenoid portion 2 housed and fixed near the center of the housing 1.
  • the vehicle horn 10 includes a diaphragm 3 which is also called a diaphragm.
  • the diaphragm 3 is fixed to the housing 1 so as to cover the opening 1c1 of the housing 1 constituting the outer shell.
  • the diaphragm 3 vibrates with the axial displacement of the movable iron core 4 to vibrate the air.
  • the solenoid unit 2 includes a coil and an insulator 21.
  • the coil is a winding portion in which a magnet wire 20 is wound around a resin bobbin portion 210.
  • the magnet wire 20 includes an insulating film 20a that covers the electric wire portion 20b that is a conductor.
  • the coil is insulated by the insulator 21.
  • the stay 5 is fixed to the fixed iron core 22 arranged so as to face the movable iron core 4 and the bottom portion 1d of the housing 1 and is mounted on a vehicle or the like.
  • the solenoid portion 2 is installed around the axis of the housing 1.
  • the solenoid unit 2 magnetizes the fixed iron core 22.
  • the housing 1 and the diaphragm 3 are members formed by press-molding a plate material of an iron-based magnetic material into a concave shape in order to form a part of the magnetic circuit of the solenoid portion 2.
  • the center hole portion 3a of the diaphragm 3 and the center hole portion 6a of the resonance plate 6 are fitted to the small diameter portion 4b located at the front portion of the movable iron core 4.
  • the movable iron core 4, the diaphragm 3, and the resonance plate 6 are integrated in a state of being caulked and fixed to the small diameter portion 4b.
  • the small diameter portion 4b forms a coupling portion in which the diaphragm 3 and the resonance plate 6 are coupled.
  • the small diameter portion 4b is a binding site between the diaphragm 3 and the resonance plate 6 which is crimped to bond the diaphragm 3 and the resonance plate 6 which are other members to the movable iron core 4.
  • the fixed iron core 22 is fixed to the stay 5 for mounting the vehicle together with the central portion of the bottom portion 1d of the housing 1 by using a fixing means such as caulking.
  • the rear end portion provided on the fixed iron core 22 is a binding site with the stay 5 that is crimped to connect the fixed iron core 22 to the stay 5.
  • the fixed iron core 22 may be fixed to the stay 5 together with the central portion of the bottom portion 1d of the housing 1 by means such as nut tightening.
  • the housing 1 has a disk-shaped bottom portion 1d located at the rear end, an intermediate flat portion 1b, and an outer peripheral edge portion 1c located at the front end, and is integrally formed.
  • the intermediate flat portion 1b is a portion in which the peripheral edge of the bottom portion 1d rises in a tubular shape and protrudes in a disk shape from the front end portion formed.
  • the outer peripheral edge portion 1c forms an opening portion 1c1 of the housing 1.
  • the outer peripheral edge portion 1c is formed so as to project outward from the front end portion formed by the peripheral edge of the intermediate flat portion 1b rising forward in a tubular shape.
  • the outer peripheral portion of the diaphragm 3 is wound around the outer peripheral edge portion 1c and fixed to the housing 1. The diaphragm 3 covers the opening 1c1 in the front.
  • the insulator 21 is an insulating member integrally formed by having a tubular bobbin portion 210, a flange portion 211, a first fixed portion 212, a second fixed portion 213, and the like.
  • a coil formed by winding a magnet wire 20 is provided on the outer peripheral surface of the bobbin portion 210.
  • a fixed iron core 22 is provided concentrically with the bobbin portion 210 and the coil.
  • the flange portion 211 is a portion of the bobbin portion 210 that projects in a disk shape from the end portion on the diaphragm 3 side.
  • the flange portion 211 forms an end surface of the insulator 21 that extends from the front end portion of the bobbin portion 210 to the periphery.
  • the flange portion 211 is a portion of the coil that covers the front end portion and the end portion on the diaphragm 3 side.
  • the first fixed portion 212 and the second fixed portion 213 are portions that protrude outward from the flange portion 211.
  • a bobbin portion 210 is provided on the front side of the bottom portion 1d of the housing 1.
  • the end face of the fixed core 22 including the tip in the axial direction faces the end face of the movable core 4 including the tip of the axial direction, and is a collision portion with the movable core 4.
  • a gap of a predetermined distance a so-called air gap, is formed between the end face of the movable iron core 4 and the end face of the fixed iron core 22 when the coil is not energized.
  • the fixed iron core 22 exists inside the bobbin portion 210.
  • the side surface of the fixed iron core 22 is surrounded by the bobbin portion 210.
  • the second fixed portion 213, the movable contact support plate 7, and the fixed contact support plate 8 are laminated on the intermediate flat portion 1b.
  • the movable contact support plate 7 is formed of an elastic metal spring material.
  • the fixed contact support plate 8 is a metal member having higher rigidity and conductivity than the movable contact support plate 7.
  • An insulating member is interposed between the movable contact support plate 7 and the fixed contact support plate 8. The insulating member prevents the movable contact support plate 7 and the fixed contact support plate 8 from conducting each other in the laminated portion on the intermediate flat portion 1b.
  • These laminated members are integrally fixed by a metal second rivet 92 that is caulked and fixed to the intermediate flat portion 1b.
  • the fixed contact support plate 8 has a fixed portion at one end fixed by the second rivet 92.
  • the other end side portion of the fixed contact support plate 8 is a non-fixed side portion that is supported by a support member but is not fixed. Therefore, it can be said that the fixed contact support plate 8 has a fixed end on one end side and a free end on the other end side.
  • the movable contact support plate 7 has a fixed portion fixed by the second rivet 92 on one end side.
  • the other end side portion of the movable contact support plate 7 is a non-fixed side portion to which the movable contact portion 7a is provided and is not fixed. Therefore, it can be said that the movable contact support plate 7 has a fixed end on one end side and a free end on the other end side.
  • the first fixed portion 212 is laminated on the other portion of the intermediate flat portion 1b.
  • One end side portion 20P1 of the magnet wire 20 extending from the coil is installed between the movable contact support plate 7 and the first fixed portion 212 in a state where the insulating film 20a covering the electric wire portion 20b is peeled off.
  • One end side portion 20P1 is pressed against the head of the first rivet 91 as the first rivet 91 is caulked and fixed. In this way, one end side portion 20P1 and the first rivet 91 are electrically connected.
  • the second fixed portion 213 is fixed to the housing 1 by a metal second rivet 92 that is caulked and fixed to the intermediate flat portion 1b.
  • the other end side portion 20P2 of the magnet wire 20 extending from the coil is installed between the insulator 21 and the movable contact support plate 7 with the insulating film 20a peeled off.
  • the electric wire portion 20b at the other end side portion 20P2 and the movable contact support plate 7 become conductive.
  • the electric wire portion 20b of the magnet wire 20 is made of a copper wire or a conductive material other than the copper wire, or a material in which different conductive substances are combined.
  • the first rivet 91 is conductive with the connector terminal 11a inside the connector 11. The positive potential of the battery is guided to the connector terminal 11a via the horn switch.
  • the first rivet 91 is a rivet located on the current input side in the solenoid unit 2.
  • the vehicle horn 10 may further include a connector terminal that conducts to the other end side portion 20P2 that is pressed against the movable contact support plate 7 by caulking and fixing the second rivet 92.
  • a third fixed portion is laminated on the other portion of the intermediate flat portion 1b.
  • the third fixed portion is a portion that protrudes outward from the flange portion 211.
  • the third fixed portion is a member fixed to the housing 1 by a metal third rivet that is caulked and fixed to the intermediate flat portion 1b. In this way, the insulator 21 is fixed to the housing 1 at three locations, the first rivet 91, the second rivet 92, and the third rivet.
  • the movable contact portion 7a protrudes from the movable contact support plate 7 toward the fixed contact support plate 8.
  • the fixed contact support plate 8 is provided with a fixed contact portion 8a protruding toward the movable contact support plate 7 at a position corresponding to the movable contact portion 7a.
  • the movable contact portion 7a and the fixed contact portion 8a are provided so as to face each other in the axial direction.
  • the movable contact portion 7a constitutes a normally closed type contact that is urged toward the fixed contact support plate 8 side by the spring force of the movable contact support plate 7 and comes into contact with the fixed contact portion 8a.
  • a large diameter portion 4c is formed on the entire circumference of the outer peripheral surface of the movable iron core 4 so as to protrude outward in diameter from other parts.
  • the large diameter portion 4c has a pressing portion that comes into contact with the pressed portion of the movable contact support plate 7 near the center of the horn and presses it rearward, that is, toward the fixed iron core 22 side.
  • This pressing portion is made of an insulating material.
  • the pressing portion can be formed integrally with the movable iron core 4 by crimping the movable iron core 4 on the rear side of the pressing portion.
  • the crimped portion is a processed portion that is crimped and plastically deformed in order to connect the movable iron core 4 and the pressing portion.
  • the movable iron core 4 is attracted by the fixed iron core 22 magnetized when the coil is energized, so that the large diameter portion 4c is displaced to the rear, that is, to the fixed iron core 22 side. Then, when the pressing portion of the large diameter portion 4c pushes the pressed portion of the movable contact support plate 7 toward the fixed iron core 22, the fixed contact portion 8a and the movable contact portion 7a are separated from each other and the contact portion is opened. ..
  • the operation of the vehicle horn 10 will be explained.
  • the horn switch When the horn switch is turned on, the current from the vehicle-mounted power supply flows from the connector terminal 11a in the order of the first rivet 91, one end side portion 20P1, and the coil. Further, the current is applied in the order of the other end side portion 20P2, the movable contact support plate 7, the movable contact portion 7a, the fixed contact portion 8a, the fixed contact support plate 8, the second rivet 92, the housing 1, the fixed iron core 22, the stay 5, and the vehicle body. It flows.
  • one end side portion 20P1 and the first rivet 91 are electrically connected, and the other end side portion 20P2 and the movable contact support plate 7 are electrically connected.
  • the electromagnetic force of the solenoid unit 2 acts on the gap between the movable iron core 4 and the fixed iron core 22, and the movable iron core 4 is attracted to the fixed iron core 22.
  • the central portion of the diaphragm 3 moves integrally with the movable iron core 4 while the peripheral edge portion is fixed and deforms.
  • the pressing portion of the movable iron core 4 presses the pressed portion of the movable contact support plate 7 to separate the movable contact portion 7a from the fixed contact portion 8a.
  • the energization of the solenoid unit 2 is cut off and the electromagnetic force disappears.
  • the movable iron core 4 returns to its original position due to the elastic force of the diaphragm 3, and the closed state of the movable contact portion 7a and the fixed contact portion 8a is restored.
  • the movable core 4 approaches the fixed core 22 due to the magnetic attraction force from the fixed core 22.
  • Each of the one end side portion 20P1 and the other end side portion 20P2 of the magnet wire 20 is conducting to a predetermined conductor.
  • the electric wire portion 20b at the portion where the insulating film 20a is removed and the predetermined conductor are in contact with each other to conduct conduction.
  • the insulator 21 has a first accommodating groove portion 212a for accommodating and holding one end side portion 20P1 extending from a coil wound around the bobbin portion 210.
  • the insulator 21 has a second accommodating groove portion 213a for accommodating and holding the other end side portion 20P2 extending from the coil wound around the bobbin portion 210.
  • the first accommodating groove portion 212a is provided in the first fixed portion 212.
  • the first accommodating groove portion 212a extends from the bobbin portion 210 side toward the outer peripheral edge of the first fixed portion 212.
  • the first accommodating groove portion 212a is provided in the first fixed portion 212 over at least the length of the electric wire portion 20b in the one end side portion 20P1 conducting with the conductor.
  • the first accommodating groove portion 212a is provided in the first fixed portion 212 over at least the length of the portion of the first rivet 91 that contacts the one end side portion 20P1.
  • the second accommodating groove portion 213a is provided in the second fixed portion 213.
  • the second accommodating groove portion 213a extends from the bobbin portion 210 side in the second fixed portion 213 so as to cross the movable contact support plate 7.
  • the second accommodating groove portion 213a is provided in the second fixed portion 213 at least over the length of the electric wire portion 20b in the other end side portion 20P2 that conducts with the conductor.
  • the second accommodating groove portion 213a is provided in the second fixed portion 213 at least over the plate width length of the movable contact support plate 7 in contact with the other end side portion 20P2.
  • the plate width length of the movable contact support plate 7 is a length in a direction orthogonal to the length in the longitudinal direction.
  • Each of the first accommodating groove portion 212a and the second accommodating groove portion 213a has the same configuration as the accommodating groove portion 12 shown in FIG.
  • FIG. 4 shows the cross-sectional shape of the magnet wire 20 and the accommodating groove portion 12.
  • the arrow line extending downward in FIG. 4 indicates the range of the laser irradiated in the laser irradiation step.
  • the range of this laser is set to be smaller than the outer diameter of the magnet wire 20 in the groove width direction.
  • the accommodating groove portion 12 has an opening width dimension larger than the outer diameter dimension of the magnet wire 20.
  • the accommodation groove portion 12 is formed so that the length in the width direction of the opening end located on the wire insertion side is larger than the length in the width direction of the bottom portion 12a.
  • the accommodating groove portion 12 is formed so that the width and length of the frontage portion is larger than that of the back portion.
  • the accommodating groove portion 12 includes a guide wall 12b having a surface extending in the linear axis direction of the magnet wire 20.
  • the accommodating groove portion 12 includes an inner side wall 12c that faces the guide wall 12b and is located on the opposite side of the guide wall 12b in the groove width direction.
  • the inner side wall 12c has a surface extending in the line axis direction of the magnet wire 20 like the guide wall 12b.
  • the surface of the inner wall 12c is orthogonal to the surface of the bottom 12a.
  • the surface of the inner side wall 12c is a surface along the axial direction of the bobbin portion 210, and is a surface orthogonal to the first fixed portion 212 and the second fixed portion 213.
  • the surface of the guide wall 12b is inclined with respect to the axial direction of the bobbin portion 210, the first fixed portion 212, and the second fixed portion 213.
  • the surface of the guide wall 12b is inclined with respect to the inner wall surface 12c so that the position closer to the bottom portion 12a is closer to the inner wall surface 12c.
  • the surface of the guide wall 12b is formed so as to be located closer to the center in the groove width direction than the opening end of the accommodating groove portion 12 at a position closer to the bottom portion 12a.
  • the guide wall 12b has a function of guiding the position of the magnet wire 20 inserted in the accommodating groove 12 so as to be brought to a predetermined position by the above configuration. As a result, the magnet wire 20 is held in the accommodating groove portion 12 so that the center is located at a predetermined position indicated by the alternate long and short dash line in FIG.
  • FIG. 5 shows the accommodating groove portion 13 as a comparative example.
  • the accommodating groove portion 13 has an opening width dimension larger than the outer diameter dimension of the magnet wire 20.
  • the bottom portion of the accommodating groove portion 13 is formed to have the same width and length as the opening width dimension, unlike the accommodating groove portion 12 of the present embodiment. Therefore, the magnet wire 20 accommodated in the accommodating groove portion 13 can be displaced in the groove width direction, and is not held at a predetermined position in the groove portion. Even if the range of the laser indicated by the arrow line in FIG. 5 is set at an appropriate position with respect to the groove portion, the wire can be displaced, so that the laser irradiates the bottom portion of the groove portion.
  • the first fixed groove portion 212 is provided with a fixing groove portion 212b on the outer diameter of the first accommodating groove portion 212a.
  • the fixing groove portion 212b forms a groove portion whose length in the groove width direction is smaller than that of the first accommodating groove portion 212a.
  • the fixing groove portion 212b preferably has a length in the groove width direction smaller than the outer diameter of the magnet wire 20.
  • the fixing groove portion 212b is fixed to the insulator 21 with the terminal portion of the magnet wire 20 sandwiched in the vicinity of the one end side portion 20P1.
  • the fixing groove portion 212b has a function of fixing the magnet wire 20 to the insulator 21 so that the one end side portion 20P1 does not fall off from the first accommodating groove portion 212a.
  • the second fixed portion 213 is provided with a fixing groove portion 213b and a folded portion 213c on the outer diameter of the second accommodating groove portion 213a.
  • the fixing groove portion 213b forms a groove portion whose length in the groove width direction is smaller than that of the second accommodating groove portion 213a.
  • the fixing groove portion 213b preferably has a groove width direction length smaller than the outer diameter of the magnet wire 20.
  • the fixing groove portion 213b is fixed to the insulator 21 with the terminal portion of the magnet wire 20 sandwiched in the vicinity of the other end side portion 20P2.
  • the fixing groove portion 213b functions to fix the magnet wire 20 to the insulator 21 so that the other end side portion 20P2 does not fall off from the second accommodating groove portion 213a.
  • the folded-back portion 213c has a wall surface 213c1 that supports the terminal portion 20P3 of the wire sandwiched by the fixing groove portion 213b so as to be folded back in the opposite direction.
  • the folded-back portion 213c also functions as a wall portion forming the fixing groove portion 213b.
  • the insulator 21 is provided with a flange portion 213d that projects outward from the folded-back portion 213c.
  • the collar portion 213d has a function of preventing the terminal portion 20P3 from falling off upward or forward.
  • FIG. 6 shows a process related to the manufacturing method of the solenoid unit 2.
  • the manufacturing method of the solenoid unit 2 includes a preparation step of the insulator 21, a winding start portion accommodating step, a winding step, a winding end accommodating step, a laser irradiation step, and a conduction step. Each process is carried out by an automatic process using a machine or a manual process.
  • the preparation step S110 of the insulator 21 is a step of preparing the insulator 21 having the above-described configuration for manufacturing.
  • the winding start portion accommodating step S120 is a step of accommodating the one end side portion 20P1 of the magnet wire 20 in the first accommodating groove portion 212a and holding the magnet wire 20 in a predetermined position.
  • the one end side portion 20P1 is inserted through the opening of the first accommodating groove portion 212a so that the line axis of the one end side portion 20P1 is aligned with the length direction of the first accommodating groove portion 212a.
  • the one end side portion 20P1 is accommodated in the groove portion from above the first accommodating groove portion 212a.
  • the one end side portion 20P1 Since the lower surface side of the one end side portion 20P1 contacts the guide wall 12b and is guided toward the center side in the groove width direction by the guide wall 12b, the one end side portion 20P1 moves toward the bottom portion of the groove portion.
  • the one end side portion 20P1 contacts the inner side wall 12c located on the opposite side of the guide wall 12b in the first accommodating groove portion 212a.
  • the one end side portion 20P1 is accommodated and held at a predetermined position in a state of being sandwiched between the guide wall 12b and the inner side wall 12c on the opposite side.
  • the magnet wire 20 is fixed to the insulator 21 so that the one end side portion 20P1 does not fall off from the first accommodating groove portion 212a. This fixing step can be carried out before or after the winding start accommodating step.
  • the winding step S130 is a step of winding the magnet wire 20 around the bobbin portion 210.
  • the other end side of the wire is wound around the bobbin portion 210 a predetermined number of times in a state where the one end side portion 20P1 is accommodated and held in the first accommodating groove portion 212a and the wire is fixed to form a coil.
  • the other end side portion 20P2 extending from the bobbin portion 210 is referred to as a winding end portion, and is used in the next winding end portion accommodating step.
  • the winding end accommodating step S140 is a step of accommodating the other end side portion 20P2 extending from the bobbin portion 210 in the second accommodating groove portion 213a and holding it in a predetermined position.
  • the other end side portion 20P2 is inserted through the opening of the second accommodating groove portion 213a so that the wire axis of the other end side portion 20P2 is aligned with the length direction of the second accommodating groove portion 213a.
  • the other end side portion 20P2 is accommodated in the groove portion from above the second accommodating groove portion 213a.
  • the other end side portion 20P2 Since the lower surface side of the other end side portion 20P2 comes into contact with the guide wall 12b and is guided toward the center side in the groove width direction by the guide wall 12b, the other end side portion 20P2 moves toward the bottom portion of the groove portion.
  • the other end side portion 20P2 contacts the inner side wall 12c located on the side opposite to the guide wall 12b in the second accommodating groove portion 213a.
  • the other end side portion 20P2 is accommodated and held at a predetermined position in a state of being sandwiched between the guide wall 12b and the inner side wall 12c on the opposite side.
  • the terminal portion fixing step S150 for fixing the terminal portion of the magnet wire 20 is carried out. In the terminal portion fixing step, the magnet wire 20 is fixed to the insulator 21 so that the other end side portion 20P2 does not fall off from the second accommodating groove portion 213a.
  • the portion of the magnet wire 20 accommodated in each of the first accommodating groove portion 212a and the second accommodating groove portion 213a is irradiated with the laser.
  • the insulating film 20a on the one end side portion 20P1 and the other end side portion 20P2 is removed, and the electric wire portion 20b is exposed on the upper surface.
  • the portions of the magnet wires 20 accommodated in the first accommodating groove portion 212a and the second accommodating groove portion 213a are brought into contact with the predetermined conductors, respectively.
  • the head of the first rivet 91 is brought into contact with the electric wire portion 20b exposed at one end side portion 20P1 from above, and the first rivet 91 is crimped and fixed to the housing 1.
  • the one end side portion 20P1 becomes conductive on the first rivet 91.
  • the movable contact support plate 7 is brought into contact with the exposed electric wire portion 20b at the other end side portion 20P2 from above, and the insulating member and the fixed contact support plate 8 are further laminated.
  • This laminated object is fixed by crimping the second rivet 92 to the housing 1.
  • the other end side portion 20P2 becomes conductive on the movable contact support plate 7.
  • either one end side portion 20P1 or the other end side portion 20P2 may be used as the winding start portion or the winding end portion.
  • the vehicle horn 10 includes a housing 1 and a solenoid portion 2 provided inside the housing 1 and having a magnet wire 20 wound around the bobbin portion 210.
  • the vehicle horn 10 includes an insulator 21 having a bobbin portion 210, a fixed iron core 22, a movable iron core 4, and a diaphragm 3.
  • the vehicle horn 10 includes a fixed contact support plate 8 having a fixed contact portion 8a and a movable contact support plate 7 having a movable contact portion 7a.
  • the movable contact portion 7a contacts the fixed contact portion 8a when the energization of the solenoid portion 2 is cut off, and separates from the fixed contact portion 8a when the energization of the solenoid portion 2 is energized.
  • the insulator 21 has a first accommodating groove portion 212a accommodating one end side portion 20P1 and a second accommodating groove portion 213a accommodating the other end side portion 20P2 of the magnet wire 20.
  • Each of the first accommodating groove portion 212a and the second accommodating groove portion 213a has an opening width dimension larger than the outer diameter dimension of the magnet wire 20 and has a guide wall 12b for guiding the magnet wire 20 to a predetermined position. ing.
  • the exposed electric wire portion 20b from which the insulating film 20a is removed is in contact with the conductor.
  • the installation process of one end side portion 20P1 can be smoothly performed. Further, since the one end side portion 20P1 is guided by the guide wall 12b, the one end side portion 20P1 can be accommodated in a predetermined position of the first accommodating groove portion 212a. Further, since the other end side portion 20P2 can be inserted into the groove through an opening having a width wider than the wire diameter, the installation process of the other end side portion 20P2 can be smoothly performed. Further, since the other end side portion 20P2 is guided by the guide wall 12b, the other end side portion 20P2 can be accommodated at a predetermined position of the second accommodating groove portion 213a.
  • the vehicle horn 10 has a configuration in which one end side portion 20P1 and the other end side portion 20P2 of the magnet wire 20 can be set at appropriate positions in the groove width direction of each accommodation groove portion. Therefore, when laser irradiation is used to remove the insulating film 20a, the laser can be accurately irradiated to the magnet wire 20. Since the laser irradiation site can be limited to the magnet wire 20 in this way, laser irradiation that does not easily damage the bottom surface of each accommodating groove can be performed. As a result, damage to each accommodating groove can be suppressed, so that it is possible to suppress the generation of foreign matter due to the damage and prevent malfunction of the device caused by the foreign matter. Therefore, the vehicle horn 10 provides a device capable of installing a winding electric wire irradiated with a laser in order to remove the insulating film 20a at an appropriate position.
  • the magnet wire 20 accommodated in the first accommodating groove portion 212a is in contact with the first rivet 91 fixed to the housing 1 and is electrically connected.
  • the magnet wire 20 accommodated in the second accommodating groove 213a is in contact with the movable contact support plate 7 and is conducting electricity.
  • the insulator 21 is not easily damaged, and one end side portion 20P1 that conducts to the connector terminal 11a to which the positive potential of the battery is guided can be reliably provided. Further, the insulator 21 is not easily damaged, and the other end side portion 20P2 that conducts to the movable contact support plate 7 electrically connected to the member on the ground side can be reliably provided.
  • the guide wall 12b has a surface shape that is located closer to the center in the groove width direction than the opening end of the accommodating groove 12 as it approaches the bottom of the accommodating groove 12. According to this configuration, the guide wall 12b has a surface shape that gradually becomes deeper from the portion on the opening end side of the accommodating groove portion 12 toward the center in the groove width direction. As a result, the magnet wire 20 inserted in the accommodating groove portion 12 can be moved toward the center in the groove width direction along the surface of the guide wall 12b. One end side portion 20P1 and the other end side portion 20P2 of the magnet wire 20 are held at a position closer to the center in the groove width direction at the bottom portion of the accommodating groove portion 12. Therefore, the positions of the one end side portion 20P1 and the other end side portion 20P2 in the accommodating groove portion 12 can be uniquely set.
  • the guide wall 12b realizes a housing groove portion 12 capable of accurately irradiating the magnet wire 20 with a laser.
  • the guide wall 12b is provided on only one side of the wall portions at both ends in the groove width direction in the accommodating groove portion 12.
  • the accommodating groove portion 12 can be provided by providing the guide wall 12b on only one side of both ends in the groove width direction.
  • the accommodating groove portion 12 can accommodate and hold the magnet wire 20 inserted in the accommodating groove portion 12 by moving it from one side in the groove width direction to the other side along the surface of the guide wall 12b.
  • the one end side portion 20P1 and the other end side portion 20P2 can be uniquely held at a predetermined position in the groove width direction at the bottom portion of the accommodating groove portion 12.
  • the manufacturing method of the solenoid unit 2 includes a step of preparing the insulator 21, a winding step, a winding start portion accommodating step, a winding end accommodating step, a laser irradiation step, and a conduction step.
  • the winding start portion accommodating step one end side portion 20P1 is inserted through the opening of the first accommodating groove portion 212a, brought to a predetermined position by the guide wall 12b, and accommodated in the first accommodating groove portion 212a.
  • the magnet wire 20 is wound around the bobbin portion 210.
  • the other end side portion 20P2 extending from the winding portion is inserted through the opening of the second accommodating groove portion 213a, brought to a predetermined position by the guide wall 12b, and accommodated in the second accommodating groove portion 213a.
  • the portion of the magnet wire 20 accommodated in each of the first accommodating groove portion 212a and the second accommodating groove portion 213a is irradiated with the laser.
  • the portions of the magnet wires 20 accommodated in the first accommodating groove portions 212a and the second accommodating groove portions 213a are brought into contact with the predetermined conductors, respectively.
  • one end side portion 20P1 can be accommodated at a predetermined position of the first accommodating groove portion 212a in the winding start portion accommodating step. Further, the other end side portion 20P2 can be accommodated at a predetermined position of the second accommodating groove portion 213a in the winding end accommodating step. As a result, the one end side portion 20P1 and the other end side portion 20P2 can be set at appropriate positions in the groove width direction of each accommodation groove portion. Since the laser irradiation is performed while the one end side portion 20P1 and the other end side portion 20P2 are held at appropriate positions, it is possible to suppress a situation in which the surrounding object of the magnet wire 20 is irradiated with the laser.
  • the laser irradiation portion is limited to the magnet wire 20 in this way, it is possible to carry out the laser irradiation step in which the bottom surface of each accommodating groove portion is not easily damaged. Therefore, it is possible to provide a method for manufacturing the solenoid portion 2 capable of installing the winding electric wire irradiated with the laser in order to remove the insulating film 20a at an appropriate position.
  • the second embodiment will be described with reference to FIG.
  • the second embodiment is different from the first embodiment in the accommodating groove portion 1012.
  • the configurations, actions, and effects that are not particularly described in the second embodiment are the same as those in the first embodiment, and the differences from the first embodiment will be described below.
  • FIG. 7 shows the cross-sectional shape of the magnet wire 20 and the accommodating groove portion 1012.
  • the arrow line extending downward in FIG. 7 indicates the range of the laser irradiated in the laser irradiation step.
  • the accommodating groove portion 1012 has an opening width dimension larger than the outer diameter dimension of the magnet wire 20.
  • the accommodation groove portion 1012 is formed so that the width direction length of the opening end located on the wire insertion side is larger than the width direction length of the bottom portion 1012a.
  • the accommodating groove portion 1012 is formed so that the width and length of the frontage portion is larger than that of the back portion.
  • the accommodating groove portion 1012 includes a guide wall 1012b and a guide wall 1012c that face each other in the groove width direction and have a surface extending in the linear axis direction of the magnet wire 20.
  • Each of the guide wall 1012b and the guide wall 1012c forms a surface located so as to be closer to the center in the groove width direction from the opening end side toward the bottom portion 1012a.
  • the surface of the guide wall 1012b and the surface of the guide wall 1012c are inclined with respect to the axial direction of the bobbin portion 210 and the first fixed portion 212 and the second fixed portion 213.
  • the surface of the guide wall 1012b and the surface of the guide wall 1012c are formed so as to be closer to the bottom portion 1012a than to the position of the opening end of the accommodating groove portion 1012.
  • the guide wall 1012b and the guide wall 1012c form a set of guide walls that are symmetrical with respect to the groove width direction in the accommodating groove portion 1012.
  • the guide wall 1012b and the guide wall 1012c have a function of guiding the position of the magnet wire 20 inserted in the accommodating groove portion 1012 so as to be brought to a predetermined position by the above configuration.
  • the magnet wire 20 is held in the accommodating groove portion 1012 so that the center is located at a predetermined position indicated by the alternate long and short dash line in FIG. 7.
  • the guide wall 1012b and the guide wall 1012c are provided on the wall portions at both ends in the groove width direction in the accommodating groove portion 1012. According to this configuration, it is possible to provide the accommodating groove portion 1012 that forms a wedge-shaped groove by providing the guide walls at both ends in the groove width direction.
  • the accommodating groove portion 1012 can accommodate and hold the magnet wire 20 inserted in the accommodating groove portion 1012 by moving it to the center in the groove width direction along the surfaces of the guide walls on both sides.
  • the one end side portion 20P1 and the other end side portion 20P2 can be uniquely held at a predetermined position in the groove width direction at the bottom portion of the accommodation groove portion 1012.
  • the third embodiment will be described with reference to FIG.
  • the third embodiment is different from the second embodiment in the accommodating groove portion 2012.
  • the configurations, actions, and effects that are not particularly described in the third embodiment are the same as those in the above-described embodiment, and the differences from the above-described embodiment will be described below.
  • FIG. 8 shows the cross-sectional shape of the magnet wire 20 and the accommodating groove portion 2012.
  • the arrow line extending downward in FIG. 8 indicates the range of the laser irradiated in the laser irradiation step.
  • the accommodating groove portion 2012 includes a guide wall 2012b and a guide wall 2012c that are symmetrical with respect to the groove width direction.
  • the guide wall 2012b and the guide wall 2012c are connected at the bottom.
  • the accommodating groove portion 2012 is formed so that the width and length of the frontage portion is larger than that of the back portion.
  • Each of the guide wall 2012b and the guide wall 2012c forms a surface located so as to be closer to the center in the groove width direction from the opening end side toward the bottom.
  • the surface of the guide wall 2012b and the surface of the guide wall 2012c are inclined in the same manner as the surface of the guide wall of the second embodiment.
  • the guide wall 2012b and the guide wall 2012c have a function of guiding the position of the magnet wire 20 inserted in the accommodating groove portion 2012 so as to be brought to a predetermined position by the above configuration.
  • the magnet wire 20 is held in the accommodating groove portion 2012 so that the center is located at a predetermined position indicated by the alternate long and short dash line in FIG.
  • the fourth embodiment will be described with reference to FIG.
  • the fourth embodiment is different from the second embodiment in the accommodating groove portion 3012.
  • the configurations, actions, and effects that are not particularly described in the fourth embodiment are the same as those in the above-described embodiment, and the points different from those in the above-described embodiment will be described below.
  • FIG. 9 shows the cross-sectional shape of the magnet wire 20 and the accommodating groove portion 3012.
  • the arrow line extending downward in FIG. 9 indicates the range of the laser irradiated in the laser irradiation step.
  • the accommodating groove portion 3012 includes a guide wall 3012b and a guide wall 3012c that are symmetrical with respect to the groove width direction.
  • the guide wall 3012b and the guide wall 3012c are smoothly connected at the bottom 3012a.
  • the accommodating groove portion 3012 is formed so that the width and length of the frontage portion is larger than that of the back portion.
  • Each of the guide wall 3012b and the guide wall 3012c forms a surface located so as to be closer to the center in the groove width direction toward the bottom 3012a from the opening end side.
  • the surface of the guide wall 3012b and the surface of the guide wall 3012c have a surface shape that curves so as to be located closer to the center in the groove width direction than the opening end as the bottom portion 3012a approaches.
  • the guide wall 3012b and the guide wall 3012c guide the position of the magnet wire 20 inserted in the accommodating groove 3012 so as to sandwich the position of the magnet wire 20 from the left and right according to the above configuration.
  • the guide wall 3012b and the guide wall 3012c have a function of guiding the position of the magnet wire 20 so as to be brought to a predetermined position.
  • the magnet wire 20 is held by the accommodating groove 3012 so that the center is located at a predetermined position indicated by the alternate long and short dash line in FIG. 9, and does not move easily.
  • the one end side portion 20P1 and the other end side portion 20P2 can be uniquely held at a predetermined position in the groove width direction at the bottom portion of the accommodation groove portion 3012.
  • Disclosure of this specification is not limited to the illustrated embodiments.
  • the disclosure includes exemplary embodiments and modifications by those skilled in the art based on them.
  • the disclosure is not limited to the combination of parts and elements shown in the embodiment, and can be implemented in various modifications. Disclosure can be carried out in various combinations.
  • the disclosure can have additional parts that can be added to the embodiments.
  • the disclosure includes parts and elements of the embodiment omitted. Disclosures include replacements or combinations of parts, elements between one embodiment and another.
  • the technical scope disclosed is not limited to the description of the embodiments.
  • the vehicle horn that can achieve the purpose disclosed in the specification includes not only a horn having a resonance plate 6 but also a so-called trumpet type horn that amplifies sound by a configuration having a resonance tube.
  • the above-described embodiment discloses a configuration relating to an electrical connection between one end side portion 20P1 or the other end side portion 20P2 of the magnet wire 20 and a conductor, but the portion to be electrically connected is not limited to this.
  • the configuration relating to the accommodating groove can be applied to the case where the intermediate tap drawn out from the middle of winding the magnet wire 20 and the conductor are made conductive.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnets (AREA)

Abstract

La présente invention concerne une alarme de véhicule comprenant un isolateur (21). L'isolateur (21) comporte une première rainure de réception (212a) pour recevoir une partie côté extrémité (20P1) d'un fil d'aimant, et une seconde rainure de réception (213a) pour recevoir une autre partie côté extrémité (20P2). La première rainure de réception (212a) a une dimension de largeur d'ouverture supérieure à la dimension du diamètre externe du fil d'aimant, et a une paroi de guidage pour guider le fil d'aimant pour le rapprocher d'une position prédéterminée. La seconde rainure de réception (213a) a une dimension de largeur d'ouverture supérieure à la dimension du diamètre externe du fil d'aimant, et a une paroi de guidage pour guider le fil d'aimant pour le rapprocher d'une position prédéterminée. Les sections du fil d'aimant qui sont respectivement logées dans la première rainure de réception (212a) et la seconde rainure de réception (213a) comprennent un film isolant retiré de celles-ci, et une partie de fil électrique exposée du fil d'aimant est ainsi en contact avec un conducteur. Cela permet d'installer, dans la bonne position, un fil électrique d'enroulement qui est exposé au rayonnement d'un laser pour retirer le film isolant.
PCT/JP2020/034335 2019-12-24 2020-09-10 Alarme de véhicule et procédé de fabrication d'un solénoïde WO2021131176A1 (fr)

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JP2019233242A JP2021103192A (ja) 2019-12-24 2019-12-24 車両用警音器およびソレノイド部の製造方法
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687898A (en) * 1985-12-13 1987-08-18 Joyal Products, Inc. Method of fusing wire to a terminal
JPH0448611A (ja) * 1990-06-14 1992-02-18 Toshiba Corp 油入電器巻線用シールド導体
JP2017168538A (ja) * 2016-03-14 2017-09-21 Tdk株式会社 コイル装置
JP2019159105A (ja) * 2018-03-13 2019-09-19 浜名湖電装株式会社 車両用警音器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55116400U (fr) * 1979-02-13 1980-08-16
JPH0448611U (fr) * 1990-08-31 1992-04-24

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4687898A (en) * 1985-12-13 1987-08-18 Joyal Products, Inc. Method of fusing wire to a terminal
JPH0448611A (ja) * 1990-06-14 1992-02-18 Toshiba Corp 油入電器巻線用シールド導体
JP2017168538A (ja) * 2016-03-14 2017-09-21 Tdk株式会社 コイル装置
JP2019159105A (ja) * 2018-03-13 2019-09-19 浜名湖電装株式会社 車両用警音器

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CN114846538A (zh) 2022-08-02

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