WO2014192592A1 - Corps d'instrument de mesure - Google Patents

Corps d'instrument de mesure Download PDF

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Publication number
WO2014192592A1
WO2014192592A1 PCT/JP2014/063342 JP2014063342W WO2014192592A1 WO 2014192592 A1 WO2014192592 A1 WO 2014192592A1 JP 2014063342 W JP2014063342 W JP 2014063342W WO 2014192592 A1 WO2014192592 A1 WO 2014192592A1
Authority
WO
WIPO (PCT)
Prior art keywords
connector terminal
hole
fixing
connection
instrument body
Prior art date
Application number
PCT/JP2014/063342
Other languages
English (en)
Japanese (ja)
Inventor
克洋 佐々木
Original Assignee
日本精機株式会社
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 日本精機株式会社 filed Critical 日本精機株式会社
Publication of WO2014192592A1 publication Critical patent/WO2014192592A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/51—Fixed connections for rigid printed circuits or like structures
    • H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
    • H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
    • H01R12/585—Terminals having a press fit or a compliant portion and a shank passing through a hole in the printed circuit board
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D13/00—Component parts of indicators for measuring arrangements not specially adapted for a specific variable
    • G01D13/02—Scales; Dials
    • G01D13/04—Construction

Definitions

  • the present invention relates to an instrument body that rotationally drives a pointer, and more particularly to an instrument body that can be electrically connected to a circuit board without using solder.
  • a conventional instrument body is disclosed in Patent Document 1, for example.
  • a conventional instrument body includes a press-fit connector terminal in the instrument body.
  • This connector terminal generally consists of a deformable connection formed by one through hole and two outer parts spaced apart from each other.
  • the deformable connection portion is deformed by the pressure applied to the support body, and between the inside of the through hole and the deformable connection portion. The interaction and frictional force resulted in electrical connection and mechanical support of the connector terminals.
  • the diameter of the connector terminal is inserted from the connection part side into a fixing through hole provided in the instrument body.
  • the inner diameter of the fixing through-hole becomes larger than the diameter of the mounting portion of the connector terminal, and it becomes difficult to fix the connector terminal to the fixing through-hole by press-fitting.
  • the fixing when the connector terminal is inserted into the fixing through hole provided in the instrument body from the side opposite to the connection portion side, the fixing is performed with respect to the diameter of the mounting portion of the connector terminal.
  • the inner diameter of the through hole for use does not increase, and the problem that it becomes difficult to fix the connector terminal to the through hole for fixing by press fitting is solved.
  • the connector in order to prevent damage to the coil fixed to the connector terminal, after the coil is entangled with the connector, the connector is returned in a direction opposite to the press-fitting direction of the connector, and the coil is slackened. Work to have it is necessary. In order to perform this work, the equipment for handling the instrument main body is enlarged. Further, when the connector terminal once press-fitted is moved again, the press-fitted state of the fixing through hole is changed, which makes it difficult to fix the fixing terminal to the fixing through hole.
  • a shape in which the outer diameter of the connection portion is smaller than the attachment portion of the connector terminal is also conceivable.
  • a base material for forming the connector terminal is used.
  • the diameter of the portion corresponding to the mounting portion must be formed in advance to increase the cost of the parts.
  • an object of the present invention is to solve the above-mentioned problems and to provide an instrument body having a connector terminal that can be electrically connected without using solder and can be securely fixed to the instrument body. Is.
  • the present invention is an instrument body including a connector terminal that is electrically connected to a circuit board and a holding portion made of a synthetic resin that holds the connector terminal, and is inserted into a through hole provided in the circuit board.
  • a deformable connection part and an attachment part inserted into a fixing through hole provided in the holding part are provided in the connector terminal, and the connection part protrudes in a direction perpendicular to the longitudinal direction of the connector terminal.
  • the mounting portion including a mounting protrusion protruding in a direction perpendicular to the longitudinal direction of the connector terminal, and the mounting protrusion protruding in a direction perpendicular to the longitudinal direction of the connector terminal
  • the direction is different from the direction in which the connection protrusion protrudes, and the inner diameter of the fixing through-hole is larger than the connection protrusion and smaller than the attachment protrusion.
  • connection protrusion and the mounting protrusion is a right angle.
  • the shape of the fixing through hole in the direction perpendicular to the insertion direction of the connector terminal is a rectangular shape.
  • the shape of the fixing through hole in the direction perpendicular to the insertion direction of the connector terminal is an elliptical shape.
  • the present invention can achieve the intended purpose, and can provide an instrument body having a connector that can be electrically connected without using solder and can be securely fixed to the instrument body. Can be provided.
  • the instrument main body 1 rotates a pointer of a pointer-type instrument, and is a movable magnet-type instrument or a stepping motor provided with a magnet rotor 3 that rotates by energization of a coil 2.
  • the meter body 1 includes a built-in magnet rotor 3, a support shaft 4 that supports the magnet rotor 3, a driven transmission gear portion 6 that meshes with a branch transmission gear portion 5 provided on the magnet rotor 3, and a driven transmission gear portion 6.
  • the guide shaft 7 that rotates a pointer (not shown) attached to the tip according to the rotation of the shaft, and the support shaft 4 and the guide shaft 7 are supported in parallel, and the magnet rotor 3, the branch transmission gear portion 5, and the driven transmission.
  • a housing 8 that houses the gear portion 6, a pair of coils 2 wound outside the housing 8, a connector terminal 9 fixed to the housing 8 and electrically connected to the coil 2, and a predetermined region of the housing 8. And a shield-like shield case 10 for covering.
  • 11 shown in FIG. 3 is a circuit board.
  • the magnet rotor 3 is a disk-shaped plastic magnet that is magnetized so that adjacent magnetic poles (four magnetic poles) are different from each other. Further, the branch transmission gear portion 5 is integrally formed on the upper surface side of the magnet rotor 3, and the support shaft 4 is rotatably inserted into the shaft core portion of the magnet rotor 3. The magnet rotor 3 is rotatably provided via the support shaft 4.
  • the driven transmission gear portion 6 is made of synthetic resin and is fixed to the pointer shaft 7.
  • the driven transmission gear portion 6 is a gear that meshes with the branch transmission gear portion 5, is formed with a larger diameter than the branch transmission gear portion 5, and has more continuous teeth on the outer periphery than the branch transmission gear portion 5. .
  • the driven transmission gear unit 6 transmits the rotation of the magnet rotor 3 transmitted from the branch transmission gear unit 5 to the pointer shaft 7.
  • the housing 8 is made of synthetic resin and is divided into upper and lower parts. In the space inside the housing 8, the magnet rotor 3, the branch transmission gear portion 5, and the driven transmission gear portion 6 are accommodated. A support shaft 4 is fixed to the housing 8, and a pointer shaft 7 is rotatably supported.
  • a winding frame portion 12 around which the coil 2 is wound is formed on the outer periphery in the radial direction of the magnet rotor 3.
  • a holding portion 13 that holds the connector terminal 9 is formed on the outer periphery in the radial direction of the magnet rotor 3 from the winding frame portion 12.
  • the housing 8 is provided with an elastic piece 15 provided with a locking claw 14 for locking in a hole (not shown) provided in the circuit board 11.
  • Reference numeral 16 denotes a positioning pin that determines the position at which the instrument body 1 is fixed to the circuit board 11.
  • the coil 2 is made of a metal wire having conductivity such as copper, and is wound around the winding frame portion 12 of the housing 8 made of synthetic resin.
  • Two coils 2 are provided, and are connected to the control means via connector terminals 9 provided on the housing 8 respectively.
  • the two coils 2 are respectively input with drive waveforms output from a control means (not shown), so that a rotating magnetic field is generated in the magnet rotor 3 and a rotational force is applied to the magnet rotor 3.
  • the connector terminal 9 has a quadrangular prism shape and is made of metal, for example, phosphor bronze, and the surface thereof is galvanized.
  • the connector terminal 9 includes a connection portion 91 and an attachment portion 92.
  • the connecting portion 91 is formed by one through hole 93 and two connecting protrusions 94 separated from each other.
  • the through hole 93 has an elliptical shape, and the connection protrusion 94 protrudes in a direction perpendicular to the longitudinal direction of the connector terminal 9.
  • the protruding direction of the connection protruding portion 94 is a direction radiating from the center line G along the auxiliary line S direction extending in a direction perpendicular to the center line G of the connector terminal 9.
  • the connection protrusion 94 of the connection portion 91 can be deformed in the direction of the through hole 93. Since the outer diameter of the connecting portion 91 is larger than the through hole 17 provided in the circuit board 11, when the connecting portion 91 is inserted into the through hole 17, the connecting portion 91 is deformed (see FIG. 8).
  • the mounting portion 92 is a portion that is held by the holding portion 13 of the housing 8.
  • the mounting portion 92 includes a mounting protrusion 95 that protrudes in a direction perpendicular to the longitudinal direction of the connector terminal 9.
  • the cross-sectional shape of the mounting projection 95 in the direction perpendicular to the longitudinal direction of the connector terminal 9 is such that the connection projection 94 extends along the auxiliary line S extending in the direction perpendicular to the center line G of the connector terminal 9 in FIG. It is a + -shape projecting in four directions in a 45 degree direction with respect to the projecting direction.
  • the attachment protrusion 95 is formed by press working. Depending on the shape of the mounting projection 95, the mounting projection 95 projects in the same direction as the connection projection 94, and projects in a direction perpendicular to the projection direction of the connection projection 94 (the straight line S direction in FIG. 6). ing. Therefore, the mounting protrusion 95 protrudes in a direction perpendicular to the longitudinal direction of the connector terminal 9, and this protruding direction is different from the direction in which the connection protrusion 94 protrudes.
  • the mounting portion 92 is inserted into the fixing through hole 19 provided in the holding portion 13 of the housing 8.
  • the fixing through-hole 19 has a rectangular cross-sectional shape in the direction perpendicular to the longitudinal direction of the connector terminal 9.
  • the inner diameter of the fixing through-hole 19 is a first inner diameter portion 19a whose long side direction is larger than the connection protrusion 94 and the attachment protrusion 95, and whose short side direction is smaller than that of the attachment protrusion 95, than the connection protrusion 94.
  • a large second inner diameter portion 19b is whose long side direction is larger than the connection protrusion 94 and the attachment protrusion 95, and whose short side direction is smaller than that of the attachment protrusion 95, than the connection protrusion 94.
  • the first inner diameter portion 19a is larger than the connecting protruding portion 94, so that the connecting protruding portion 94 is fixed through.
  • the hole 19 is not cut in contact with the hole 19, and as a result, the fixing through-hole 19 is not expanded.
  • the mounting protrusion 95 is inserted into the fixing through hole 19, the mounting protrusion 95 is smaller than the first inner diameter portion 19a of the fixing through hole 19, but larger than the second inner diameter portion 19b.
  • the projecting portion 95 comes into contact with the fixing through hole 19 and press-fit, and the mounting projecting portion 95 is held in the fixing through hole 19.
  • the connector terminal 9 is electrically connected to the coil 2 and the circuit board 11.
  • the coil 2 is wound around the side of the connector terminal 9 opposite to the side on which the connection protrusion 94 is provided, and then fixed to the connector terminal 9 with solder.
  • a wiring pattern 18 made of a conductive metal such as copper is provided in the through hole 17 provided in the circuit board 11 in the inside of the through hole 17 and the opening of the through hole 17.
  • the connection protrusion 94 of the connector terminal 9 is electrically connected by contacting the wiring pattern 18.
  • the shield case 10 is made of a magnetic material such as permalloy and has a cup shape that covers a predetermined area of the housing 8.
  • the circuit board 11 is obtained by providing a wiring pattern 18 on a hard insulating base material such as a glass epoxy board.
  • the connector terminal 9 is inserted into the fixing through hole 19 from the connection portion 91 side.
  • a part of the attachment portion 92 is press-fitted into the fixing through hole 19.
  • FIG. 11 (b) is a cross-sectional view seen from the direction of arrow F in FIG. 11 (a).
  • FIG.11 (d) is sectional drawing seen from the same direction as Fig.11 (a). As described above, after the coil 2 is fixed to the connector terminal 9, the connector terminal 9 is further inserted, whereby the coil 2 is bent and damage to the coil 2 can be prevented.
  • each magnetic field vector works, and the magnet rotor 3 magnetized with four poles according to the strength of each magnetic field vector rotates,
  • the rotation is transmitted to the pointer shaft 7 through the branch transmission gear portion 5 and the driven transmission gear portion 6, and the pointer fixed to the pointer shaft 7 is angularly moved.
  • the gear ratios of the branch transmission gear unit 5 and the driven transmission gear unit 6 are set so that the driven transmission gear unit 6 rotates at a low speed (deceleration) with respect to the branch transmission gear unit 5.
  • the shape of the fixing through hole 19 is a rectangular shape, but is not limited to the above embodiment.
  • the shape perpendicular to the insertion direction of the connector terminal 9 is an elliptical shape.
  • the inner diameter of the fixing through-hole 20 is such that the four corners of the connection protrusion 94 do not contact the inner diameter of the fixing through-hole 20 with respect to the connection protrusion 94, and The four corners of the mounting protrusion 95 are all in contact with the inner diameter of the fixing through hole 20.
  • the mounting protrusion 95 when the mounting protrusion 95 is inserted into the fixing through-hole 20, the mounting protrusion 95 is larger than the fixing through-hole 20, so that the mounting protrusion 95 comes into contact with the fixing through-hole 20 and press-fits. The mounting protrusion 95 is held in the fixing through hole 20.
  • the present invention can be used for an instrument body that can be electrically connected to a circuit board without using solder.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

La présente invention concerne un corps d'instrument de mesure doté de bornes de connecteur qui peuvent être fixées et connectées électriquement de manière fiable sans brasure. Le corps d'instrument de mesure (1) comprend des bornes de connecteur (9) en connexion électrique avec une carte de circuit (11), et des parties de support (13) qui supportent les bornes de connecteurs (9) et comprennent une résine composite. Chaque borne de connecteur (9) comprend une partie connexion déformable (91), qui s'insère dans un trou débouchant (17) situé sur la carte de circuit (11), et une partie fixation (92), qui s'insère dans un trou débouchant d'ancrage (19) situé sur chaque partie de support (13). La partie connexion (91) est dotée d'une section connexion faisant saillie (94) qui fait saillie dans une direction verticale par rapport à la direction longitudinale de la borne de connecteur (9). La partie fixation (92) est dotée d'une section fixation faisant saillie (95) qui fait saillie dans la direction verticale par rapport à la direction longitudinale de la borne de connecteur (9). La direction dans laquelle la section fixation faisant saillie (95) fait saillie dans la direction verticale par rapport à la direction longitudinale du connecteur (9) est différente de la direction dans laquelle la section connexion faisant saillie (94) fait saillie, et le diamètre interne du trou débouchant d'ancrage (19) est supérieur à la section connexion faisant saillie (94) et inférieur à la section fixation faisant saillie (95).
PCT/JP2014/063342 2013-05-31 2014-05-20 Corps d'instrument de mesure WO2014192592A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-114751 2013-05-31
JP2013114751A JP2014235006A (ja) 2013-05-31 2013-05-31 計器本体

Publications (1)

Publication Number Publication Date
WO2014192592A1 true WO2014192592A1 (fr) 2014-12-04

Family

ID=51988625

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Application Number Title Priority Date Filing Date
PCT/JP2014/063342 WO2014192592A1 (fr) 2013-05-31 2014-05-20 Corps d'instrument de mesure

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JP (1) JP2014235006A (fr)
WO (1) WO2014192592A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63117069U (fr) * 1987-01-22 1988-07-28
JPH05190221A (ja) * 1992-01-14 1993-07-30 Fujitsu Ltd 印刷配線板の端子構造
JPH11260504A (ja) * 1998-01-23 1999-09-24 Molex Inc 可撓性回路基板取付用端子ピン
JP2002267501A (ja) * 2001-03-13 2002-09-18 Denso Corp 車両用指示計器
JP2007198941A (ja) * 2006-01-27 2007-08-09 Yazaki Corp 指針式表示装置及び指針式表示装置の製造方法
JP2008541443A (ja) * 2005-05-11 2008-11-20 ソンセボ ソシエテ アノニム 自動車の計器板に特に適切である、電気式駆動装置のハンダ付けを用いないプリント回路への接続方法
JP2008544450A (ja) * 2005-07-08 2008-12-04 ジェイ．エス．ティー．コーポレーション 圧入ピン
JP2010526312A (ja) * 2007-05-09 2010-07-29 ソンセボ オートモーティブ エスアー モータ及び電気的接続手段により形成されるダッシュボードメーターモジュール

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63117069U (fr) * 1987-01-22 1988-07-28
JPH05190221A (ja) * 1992-01-14 1993-07-30 Fujitsu Ltd 印刷配線板の端子構造
JPH11260504A (ja) * 1998-01-23 1999-09-24 Molex Inc 可撓性回路基板取付用端子ピン
JP2002267501A (ja) * 2001-03-13 2002-09-18 Denso Corp 車両用指示計器
JP2008541443A (ja) * 2005-05-11 2008-11-20 ソンセボ ソシエテ アノニム 自動車の計器板に特に適切である、電気式駆動装置のハンダ付けを用いないプリント回路への接続方法
JP2008544450A (ja) * 2005-07-08 2008-12-04 ジェイ．エス．ティー．コーポレーション 圧入ピン
JP2007198941A (ja) * 2006-01-27 2007-08-09 Yazaki Corp 指針式表示装置及び指針式表示装置の製造方法
JP2010526312A (ja) * 2007-05-09 2010-07-29 ソンセボ オートモーティブ エスアー モータ及び電気的接続手段により形成されるダッシュボードメーターモジュール

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