WO2014122883A1 - 多極コネクタ - Google Patents
多極コネクタ Download PDFInfo
- Publication number
- WO2014122883A1 WO2014122883A1 PCT/JP2014/000168 JP2014000168W WO2014122883A1 WO 2014122883 A1 WO2014122883 A1 WO 2014122883A1 JP 2014000168 W JP2014000168 W JP 2014000168W WO 2014122883 A1 WO2014122883 A1 WO 2014122883A1
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- pin
- terminal
- holding member
- multipolar connector
- terminals
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- 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
- H01R12/52—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
- H01R12/523—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures by an interconnection through aligned holes in the boards or multilayer board
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
- H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
- H01R43/24—Assembling by moulding on contact members
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/115—Via connections; Lands around holes or via connections
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
- H05K1/144—Stacked arrangements of planar printed circuit boards
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/24—Reinforcing the conductive pattern
- H05K3/241—Reinforcing the conductive pattern characterised by the electroplating method; means therefor, e.g. baths or apparatus
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/34—Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
- H01L2224/36—Structure, shape, material or disposition of the strap connectors prior to the connecting process
- H01L2224/37—Structure, shape, material or disposition of the strap connectors prior to the connecting process of an individual strap connector
- H01L2224/37001—Core members of the connector
- H01L2224/3701—Shape
- H01L2224/37012—Cross-sectional shape
- H01L2224/37013—Cross-sectional shape being non uniform along the connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/34—Strap connectors, e.g. copper straps for grounding power devices; Manufacturing methods related thereto
- H01L2224/39—Structure, shape, material or disposition of the strap connectors after the connecting process
- H01L2224/41—Structure, shape, material or disposition of the strap connectors after the connecting process of a plurality of strap connectors
- H01L2224/4101—Structure
- H01L2224/4103—Connectors having different sizes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2107/00—Four or more poles
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/04—Assemblies of printed circuits
- H05K2201/042—Stacked spaced PCBs; Planar parts of folded flexible circuits having mounted components in between or spaced from each other
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/1028—Thin metal strips as connectors or conductors
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/10295—Metallic connector elements partly mounted in a hole of the PCB
- H05K2201/10303—Pin-in-hole mounted pins
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10227—Other objects, e.g. metallic pieces
- H05K2201/10424—Frame holders
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10431—Details of mounted components
- H05K2201/10507—Involving several components
- H05K2201/10522—Adjacent components
Definitions
- the present invention relates to a multipolar connector for mutually connecting circuit boards on which electronic components are mounted to each other.
- a large current flows and a power generating element such as FET (Field Effect Transistor) or IGBT (Insulated Gate Bipolar Transistor) having high heat buildup is mounted.
- the power circuit board is separated from the control circuit board.
- the power circuit board and the control circuit board are arranged in parallel and spaced apart by a predetermined distance.
- the power circuit board is disposed on the bottom side of the housing, and the control circuit board is disposed above the power circuit board by a predetermined distance. In this case, a connector for electrically interconnecting these two circuit boards is required.
- the multipolar connector 201 shown in FIG. 13 has a plurality of pin-like terminals 202 arranged at a predetermined pitch in a line in a direction perpendicular to the connection direction, and insulating members 203A and 203B for holding these pin-like terminals 202. And have.
- Each pin-shaped terminal 202 is formed with a V-shaped curved portion 203 which is curved in a V-shape substantially at the center in the extension direction.
- An upper substrate connecting portion 204 soldered to an upper circuit board is formed at the upper end in the extending direction of each pin-like terminal 202, and is curved in an S shape at the lower end in the extending direction.
- An S-shaped curved portion 205 is formed.
- a lower substrate connection portion 206 to be soldered to a lower circuit board is formed.
- the upper substrate connection portion 204 is inserted into a through hole formed in the upper circuit board (for example, control circuit substrate) and soldered, and the lower substrate connection portion 206 is for the lower circuit board (for example, power circuit) It is surface mounted on a substrate and soldered.
- the middle portions of the connecting conductors 302 are integrally fixed by the insulating plate 303 in a state where the plurality of connecting conductors 302 are arranged in parallel, and they are insulated.
- a bent portion 304 or a protrusion (not shown) is provided at a predetermined position of a portion protruding from the plate 303. Then, as shown in FIG. 15, when the projecting portion of the connection conductor 302 is penetrated through the pair of wiring boards 310 and 320, the distance between the wiring boards 310 and 320 is fixed by the bent portion 304.
- the one shown in FIG. 16 is also known (see Patent Document 3).
- a multipolar connector 401 shown in FIG. 16 is formed by punching a metal plate and connecting standard pressure welding terminals 401A and 401B consisting of a pair of pressure welding parts 411a and 411b and tab parts 412a and 412b, and connecting tab parts 412a and 412b to each other.
- plural tab portions 412a and 412b of the standard pressure welding terminals 401A and 401B are connected by the resin member 420.
- the tab portions 412a and 412b of the standard pressure welding terminals 401A and 401B can be collectively positioned.
- the conventional multipolar connectors 201, 301, and 401 shown in FIGS. 13 to 16 have the following problems. That is, in the case of the multipolar connector 201 shown in FIG. 13, the plurality of pin-like terminals 202 can be integrated by the insulating members 203A and 203B, and the upper substrate connection portion 204 and the lower side of each pin-like terminal 202 Positioning of the substrate connection portion 206 can be performed. However, since each pin-like terminal 202 is formed with the minimum necessary thickness, the upper board connection portion 204 may be inserted through a through hole formed in the upper circuit board for solder connection or a multipolar connector. At the time of conveyance of 201, some external force may act to cause deformation.
- each standard pressure welding terminal 401A, 401B has tab portions 412a, 412b and has a relatively wide width, but also when any external force is applied. Deformation may occur, and the same problem as the multipolar connector 201 shown in FIG. 13 occurs.
- An object of the present invention is to provide a multipolar connector capable of preventing deformation of a pin-like terminal and preventing displacement of the pin-like terminal and misalignment of other pin-like terminals.
- a multipolar connector is arranged in a row in a direction perpendicular to the connection direction, and includes a plurality of pin-shaped terminals each extending in the connection direction; And a holding member extending in a direction perpendicular to and holding the plurality of pin-like terminals at a predetermined pitch, and protecting a specific pin-like terminal among the plurality of pin-like terminals in a part of the holding member.
- the protective portion is characterized in that the protective portion extends so as to protrude in the connection direction of the pin-like terminal to be protected from the holding member and covers the periphery of the pin-like terminal.
- this multipolar connector it is a protection part which protects a specific pin-like terminal among a plurality of pin-like terminals in a part of the holding member, and protrudes in the connecting direction of the pin-like terminal which protects from the holding member.
- a protection portion is provided to extend around and cover the periphery of the pin-like terminal, a specific pin-like terminal can be protected by the protection portion when connecting to a circuit board, transporting a multipolar connector, etc. Even if an external force is applied to the pin-like terminal, the pin-like terminal can be prevented from being deformed.
- the pin-shaped terminal of the multipolar connector can be properly and smoothly inserted into the through hole of the circuit board.
- the protective portion be integrally molded with the holding member.
- the protective portion can be manufactured with a simple manufacturing process.
- the protective portion is disposed at at least one end in a direction in which the holding member extends, and a pin-shaped terminal positioned at least one outer end of the plurality of pin-shaped terminals arranged in a row It is preferable to protect the According to this multipolar connector, among the plurality of pin-shaped terminals arranged in a row, the pin-shaped terminal located at the outer end that is most susceptible to external force when connecting to the circuit board or transporting the multipolar connector The terminal can be protected by a protection unit.
- the protective portions are installed at both ends in the direction in which the holding member extends, and protect the pin-shaped terminals located at both outer ends of the plurality of pin-shaped terminals formed in a row. It is preferable to do.
- the pin-shaped terminals located at the outer ends which are most susceptible to external force at the time of connection to a circuit board or transport of the multipolar connector The terminal can be protected by a protection unit. For this reason, even if an external force acts on the pin-shaped terminals located at both outer ends, deformation of the pin-shaped terminals can be avoided, and positional deviation of the pin-shaped terminals at both outer ends can be avoided. Misalignment of other pin terminals due to deformation of the pin terminals at both outer ends can also be avoided. Thereby, the pin-shaped terminal of the multipolar connector can be properly and smoothly inserted through the through hole of the circuit board.
- the protective portion is disposed at one end in a direction in which the holding member extends and a portion spaced apart from the one end by a predetermined distance and inside the other end of the holding member. And a pin-shaped terminal located at an outer end of the plurality of pin-shaped terminals formed in a row, and a pin-shaped terminal located inside the pin-shaped terminal at a predetermined distance from the pin-shaped terminal and at the other outer end. May be protected.
- the pin-shaped terminal located at the outer end that is most susceptible to external force when connecting to the circuit board or transporting the multipolar connector It is possible to protect the terminal and the pin-shaped terminal which is spaced apart from the pin-shaped terminal by a predetermined distance and which is on the inner side of the pin-shaped terminal at the other outer end by the protective portion.
- an inclined surface may be formed at the tip of the protective portion in the connection direction.
- an inclined surface is formed at the end in the connection direction of the protective portion, stress concentration at the boundary between the pin-shaped terminal and the protective portion can be prevented even when the pin-like terminal receives a bending load in assembly or the like.
- the holding member and the protective portion be formed by insert molding of the plurality of pin-shaped terminals. According to this multipolar connector, the multipolar connector can be manufactured in a simple manufacturing process by forming the holding member and the protective portion together with the plurality of pin-shaped terminals by insert molding.
- the protective portion may be provided with an opening for a pressing jig that suppresses deformation of the pin-like terminal during insert molding.
- the protective portion is provided with an opening for a pressing jig that suppresses deformation of the pin terminal during insert molding, the pin terminal is deformed by pressing the pin terminal from the opening during insert molding. Can be prevented.
- each of the plurality of pin-shaped terminals extends in the connecting direction, extends from the holding portion held by the holding member and one end in the connecting direction of the holding portion, and is formed on one circuit board And a surface mounting connection portion extending from the other end in the connection direction of the holding portion and surface mounted and soldered on the other circuit board.
- the protective portion covers the periphery of the through hole connection portion to protect the through hole connection portion. As described above, when the protective portion covers the periphery of the through hole connection portion to protect the through hole connection portion, the deformation of the through hole connection portion can be prevented and the positional deviation can be prevented.
- the multipolar connector according to another aspect of the present invention prevents the deformation of a specific pin-shaped terminal among a plurality of pin-shaped terminals arranged in a row in a direction perpendicular to the connection direction, It is a multipolar connector capable of preventing positional deviation of pin-like terminals and positional deviation of other pin-like terminals.
- the connection direction of the pin-like terminal for protecting the specific pin-like terminal among the plurality of pin-like terminals to a part of the holding member which protects from the holding member
- the protective part at the time of connection to the circuit board or at the time of transportation of the multipolar connector, etc.
- FIG. 5 shows the basic structure of the electric-power-steering apparatus in which the multipolar connector which concerns on this invention is used. It is a block diagram which shows the control system of the controller of the electric-power-steering apparatus shown in FIG. It is a disassembled perspective view of a controller containing the semiconductor module (power circuit board) which mounts the multipolar connector of the electric-power-steering apparatus shown in FIG. It is a top view of the semiconductor module (power circuit board) shown in FIG. It is a perspective view of a multipolar connector.
- the multipolar connector of FIG. 5 is shown, (A) is a top view, (B) is a front view, (C) is a bottom view.
- FIG. 5 is shown, (A) is a left view, (B) is a right view. It is a perspective view of the 1st modification of a multipolar connector.
- the multipolar connector of FIG. 8 is shown, (A) is a top view, (B) is a front view, (C) is a bottom view. It is a right view of the multipolar connector of FIG.
- the 2nd modification of a multipolar connector is shown, (A) is a top view, (B) is a front view, (C) is a bottom view.
- the multipolar connector of FIG. 11 is shown, (A) is a left view, (B) is a right view.
- FIG. 1 It is a perspective view which shows an example of the conventional multipolar connector for mutually connecting the circuit boards in which the electronic component was mutually mounted.
- the other example of the conventional multipolar connector for mutually connecting the circuit boards in which the electronic component was mutually mounted is shown, (A) is a front view, (B) is a right view. It is a figure which shows schematically a mode that two wiring boards were connected by the multipolar connector shown in FIG. It is a perspective view which shows the further another example of the conventional multipolar connector.
- FIG. 1 is a view showing the basic structure of an electric power steering apparatus in which a multipolar connector according to the present invention is used.
- FIG. 2 is a block diagram showing a control system of a controller of the electric power steering apparatus shown in FIG.
- FIG. 3 is an exploded perspective view of a controller including a semiconductor module (power circuit board) on which the multipolar connector of the electric power steering apparatus shown in FIG. 1 is mounted.
- FIG. 1 shows the basic structure of an electric power steering apparatus in which the multipolar connector according to the present invention is used.
- a column shaft 2 of a steering handle 1 is a reduction gear 3 and a universal joint.
- a torque sensor 7 for detecting the steering torque of the steering wheel 1 is provided on the column shaft 2, and an electric motor 8 assisting the steering force of the steering wheel 1 is connected to the column shaft 2 via the reduction gear 3. It is done. Electric power is supplied from a battery (not shown) to the controller 10 for controlling the electric power steering apparatus, and an ignition key signal IGN (see FIG. 2) is input through an ignition key (not shown).
- the controller 10 calculates a steering assist command value to be an assist (steering assist) command based on the steering torque Ts detected by the torque sensor 7 and the vehicle speed V detected by the vehicle speed sensor 9, and the calculated steering
- the current supplied to the electric motor 8 is controlled based on the auxiliary command value.
- the controller 10 is mainly composed of a microcomputer, and the mechanism and configuration of its control device are as shown in FIG.
- the steering torque Ts detected by the torque sensor 7 and the vehicle speed V detected by the vehicle speed sensor 9 are input to the control arithmetic unit 11 as a control arithmetic unit, and the current command value calculated by the control arithmetic unit 11 is gate drive circuit 12 Enter in
- the gate drive signal formed based on the current command value or the like in the gate drive circuit 12 is input to the motor drive unit 13 having a bridge configuration of FET, and the motor drive unit 13 passes through the interruption device 14 for emergency stop and three phases
- An electric motor 8 configured of a brushless motor is driven.
- the respective phase currents of the three-phase brushless motor are detected by the current detection circuit 15, and the detected three-phase motor currents ia to ic are inputted to the control arithmetic unit 11 as feedback currents.
- a rotation sensor 16 such as a hall sensor is attached to the electric motor 8, the rotation signal RT from the rotation sensor 16 is input to the rotor position detection circuit 17, and the detected rotation position ⁇ is the control arithmetic device 11. Is input to
- the ignition signal IGN from the ignition key is input to the ignition voltage monitor unit 18 and the power supply circuit unit 19, and the power supply voltage Vdd from the power supply circuit unit 19 is input to the control arithmetic device 11, and a reset signal for stopping the device. Rs is input to the control arithmetic device 11.
- blocking apparatus 14 is comprised by the relay contacts 141 and 142 which interrupt
- the FET Tr1 and Tr2, FET Tr3 and Tr4, and FET Tr5 and Tr6 connected in parallel to the power supply line 81 are connected to the ground line 82.
- the source electrode S of the FETTr1 and the drain electrode D of the FETTr2 are connected in series to form a c-phase arm of a three-phase motor, and a current is output through a c-phase output line 91c.
- the source electrode S of the FETTr3 and the drain electrode D of the FETTr4 are connected in series to form an a-phase arm of a three-phase motor, and a current is output through an a-phase output line 91a.
- the source electrode S of the FETTr5 and the drain electrode D of the FETTr6 are connected in series to form a b-phase arm of a three-phase motor, and a current is output through the b-phase output line 91b.
- FIG. 3 is an exploded perspective view of the controller 10 including a semiconductor module (power circuit board) on which the multipolar connector of the electric power steering apparatus shown in FIG. 1 is mounted.
- the semiconductor module 30 as a power module including the unit 13, the heat dissipation sheet 39, the control circuit board 40 including the control arithmetic device 11 and the gate drive circuit 12, the power and signal connector 50, and the three-phase output connector 60 And a cover 70.
- the case 20 is formed in a substantially rectangular shape, and provided at the longitudinal direction end of the semiconductor module placement portion 21 for placing the semiconductor module 30 and the semiconductor module placement portion 21.
- a power and signal connector mounting portion 22 for mounting the power and signal connector 50, and a three-phase for mounting the three-phase output connector 60 provided at the width direction end of the semiconductor module mounting portion 21 And an output connector mounting portion 23.
- a plurality of screw holes 21 a into which mounting screws 38 for mounting the semiconductor module 30 are screwed are formed in the semiconductor module mounting portion 21. Further, a plurality of mounting posts 24 for mounting the control circuit board 40 are erected on the semiconductor module mounting portion 21 and the power and signal connector mounting portion 22, and the control circuit board 40 is mounted on each mounting post 24. A screw hole 24a into which a mounting screw 41 for mounting is screwed is formed. Furthermore, in the three-phase output connector mounting portion 23, a plurality of screw holes 23a into which mounting screws 61 for mounting the three-phase output connector 60 are screwed are formed.
- the semiconductor module 30 is a power circuit board, has the circuit configuration of the motor drive unit 13 described above, and is connected to the six FETTr1 to Tr6 and the power supply line 81 on the board 31 as shown in FIG.
- the positive electrode terminal 81a and the negative electrode terminal 82a connected to the ground line 82 are mounted.
- Each of the FETs Tr1 to Tr6 is configured by a bare chip FET (bare chip transistor) 35.
- the substrate 31 also includes an a-phase output terminal 92a connected to the a-phase output line 91a, a b-phase output terminal 92b connected to the b-phase output line 91b, and a c-phase output connected to the c phase output line 91c.
- a three-phase output unit 90 including a terminal 92c is mounted.
- other surface mounting components 37 including a capacitor are mounted on the substrate 31.
- the substrate 31 of the semiconductor module 30 is provided with a plurality of through holes 31 a through which mounting screws 38 for mounting the semiconductor module 30 to the case 20 are inserted.
- control circuit board 40 mounts a plurality of electronic components on the substrate to constitute a control circuit including the control arithmetic device 11 and the gate drive circuit 12.
- the control circuit board 40 is mounted by a plurality of mounting screws 41 on a plurality of mounting posts 24 erected on the semiconductor module mounting portion 21 and the power and signal connector mounting portion 22 from above the semiconductor module 30.
- the control circuit board 40 is formed with a plurality of through holes 40 a through which the mounting screws 41 are inserted.
- a plurality of multipolar connectors 101 are mounted on the semiconductor module 30 so that the semiconductor module 30 and the control circuit board 40 are mutually connected by these multipolar connectors 101. It has become.
- FIG. 5 is a perspective view of the multipolar connector.
- 6 shows the multipolar connector of FIG. 5, wherein (A) is a plan view, (B) is a front view, and (C) is a bottom view.
- FIG. 7 shows the multipolar connector of FIG. 5, where (A) is a left side view and (B) is a right side view.
- the multipolar connector 101 includes a plurality of pin-like terminals 110 and a holding member 120.
- the plurality of pin-like terminals 110 are arranged at a predetermined pitch in a line in a direction indicated by an arrow X perpendicular to the connection direction indicated by the arrow Y in FIG.
- Each pin-shaped terminal 110 is formed by punching and bending a metal plate, and is configured to extend in the connection direction.
- Each pin-shaped terminal 110 extends in the connecting direction, and from the lower end in the connecting direction of the holding portion 111 held by the holding member 120, the through hole connecting portion 112 extending from the upper end in the connecting direction of the holding portion 111, And an extending surface mount connection 113.
- the through hole connection portion 112 is inserted into a through hole 42 (see FIG. 3) formed in the control circuit board 40 and is soldered.
- there are two types of pin-shaped terminals 110 and the through hole connection portion 112 is straightly extended upward from the upper end in the connection direction of the holding portion 111 and is temporarily bent forward from the upper end in the connection direction of the holding portion 111. There are those which extend upward through the bent portion 112a.
- the pin-shaped terminal 110 in which the through-hole connecting portion 112 extends in a straight line and the pin-shaped terminal 110 in which the through-hole connecting portion 112 extends through the bent portion 112 a are arrows perpendicular to the connecting direction indicated by the arrow Y.
- through-hole connection portions 112 are alternately arranged in the direction indicated by X.
- through-hole connection portions 112 extend in a direction perpendicular to the connection direction. It becomes possible to arrange in high density by being arranged in a zigzag.
- each pin-like terminal 110 is surface mounted on the conductive pad (not shown) on the substrate 31 in the semiconductor module 30 and soldered.
- Each surface mounting connection portion 113 includes a front extension 113a extending forward from the lower end in the connection direction of the holding portion 111, a vertical portion 113b extending downward from the front end of the front extension 113a, and a rear end from the lower end of the vertical portion 113b.
- a solder connection portion 113c which is soldered to the conductive pad.
- the holding member 120 is a member having a rectangular cross section extending in the direction indicated by the arrow X perpendicular to the connecting direction indicated by the arrow Y, and is formed by molding an insulating resin.
- the holding member 120 holds the plurality of pin-shaped terminals 110 at a predetermined pitch. By holding the plurality of pin-shaped terminals 110 by the holding member 120, the through hole connection portion 112 and the surface mounting connection portion 113 in each pin-shaped terminal 110 can be positioned.
- a protection portion 121 for protecting a specific pin-shaped terminal 110 among the plurality of pin-shaped terminals 110 is provided in a part of the direction in which the holding member 120 extends.
- the protection portion 121 is configured to extend so as to protrude in the connection direction of the pin-like terminal 110 to be protected from the holding member 120 and to cover the periphery of the pin-like terminal 110.
- the protective portion 121 has one end in a direction in which the holding member 120 extends and a portion spaced a predetermined distance from the one end and a portion inside the other end of the holding member 120. is set up.
- Each of the two protective portions 121 is a pin-like terminal 110 located at an outer end of the plurality of pin-like terminals 110 formed in a line (from the upper end in the connection direction of the holding portion 111 in the through hole connecting portion 112).
- a pin-shaped terminal 110 (specifically, a pin-shaped terminal at the other end outside the pin-shaped terminal 110) Pin terminal adjacent to the through hole connection portion 112 and protects the through hole connection portion 112 from the upper end in the connection direction of the holding portion 111 in a straight line).
- These two protective portions 121 are formed in a cylindrical shape extending from the holding portion 120 so as to project in the connecting direction of the pin-like terminal 110 and covering the periphery of the pin-like terminal 110.
- the amount of protrusion of each protection portion 121 from the holding portion 120 is such that the through hole connection portion 112 is exposed at most and can be inserted and connected to the through hole 42 of the control circuit board 40.
- the two protection portions 121 are integrally formed with the holding member 120. Therefore, the two protective portions 121 can be manufactured together with the holding member 120 in a simple manufacturing process.
- an inclined surface 122 is formed at the tip of each protective portion 121 in the connection direction.
- the holding member 120 and the protective portion 121 are formed by insert molding together with the plurality of pin-shaped terminals 110.
- the multipolar connector 101 can be manufactured by a simple manufacturing process.
- an opening portion 123 for a pressing jig that suppresses the deformation of the pin-like terminal 110 protected at the time of insert molding is formed in the side portion of the protective portion 121.
- deformation of the pin-shaped terminal 110 can be prevented by pressing the pin-shaped terminal 110 from the opening 123 by the holding jig at the time of insert molding.
- the power and signal connector 50 inputs DC power from a battery (not shown) to the semiconductor module 30, and various signals including signals from the torque sensor 12 and the vehicle speed sensor 9 to the control circuit board 40.
- the power and signal connector 50 is attached to the power and signal connector mounting portion 22 provided in the semiconductor module mounting portion 21 by a plurality of mounting screws 51.
- the three-phase output connector 60 is used to output the current from the a-phase output terminal 92a, the b-phase output terminal 92b, and the c-phase output terminal 92c.
- the three-phase connector 60 is attached to the three-phase output connector mounting portion 23 provided at the widthwise end of the semiconductor module mounting portion 21 by a plurality of mounting screws 61.
- the three-phase output connector 60 is formed with a plurality of through holes 60 a through which the mounting screws 61 are inserted. Furthermore, as shown in FIG. 3, the cover 70 is provided on the case where the semiconductor module 30, the control circuit board 40, the power and signal connector 50, and the three-phase output connector 60 are attached as shown in FIG. It is attached so as to cover the control circuit board 40 from above.
- the semiconductor module 30 on which the multipolar connector 101 is mounted is mounted on the semiconductor module mounting portion 21 of the case 20 by a plurality of mounting screws 38.
- the surface mounting connection portions 113 of the plurality of pin-like terminals 101 are soldered to the conductive pads on the substrate 31.
- the heat dissipation sheet 39 is mounted on the semiconductor module mounting portion 21, and the semiconductor module 30 is mounted on the heat dissipation sheet 39. The heat generated by the semiconductor module 30 is dissipated to the case 20 through the heat dissipating sheet 39 by the heat dissipating sheet 39.
- the control circuit board 40 After mounting the semiconductor module 30 on which the multipolar connector 101 is mounted on the semiconductor module mounting portion 21, the control circuit board 40 is mounted on the semiconductor module mounting portion 21 and the power and signal connector from above the semiconductor module 30. It mounts with a plurality of mounting screws 41 on a plurality of mounting posts 24 erected in the section 22. Thus, the semiconductor module 30 and the control circuit board 40 can be attached to the case 20. At this time, the through hole connecting portions 112 of the pin-like terminals 110 of the multipolar connector 101 mounted on the semiconductor module 30 are inserted into the through holes 42 of the control circuit board 40 and soldered.
- each pin-like terminal 110 is held at a predetermined pitch by the holding member 120, the positioning of the through hole connection portion 112 in each of the pin-shaped terminals 110 is performed. For this reason, the through hole connection portion 112 of each pin-like terminal 110 is properly and smoothly inserted into each through hole 42 of the control circuit board 40. On the other hand, since each pin-like terminal 110 is elongated in the connecting direction by the metal plate, it may be deformed by an external force during this assembling operation.
- the protective portion 121 can protect the pin-shaped terminal 110 which is spaced apart from the pin-shaped terminal 110 by a predetermined distance and which is located on the inner side of the pin-shaped terminal 110 at the other outer end. For this reason, even if the pin-like terminal 110 located at the outer end and the pin-like terminal 110 inside the pin-like terminal 110 at the other end away from the pin-like terminal 110 by a predetermined distance are applied to these pin-like terminals 110 It is possible to prevent the deformation of the pin terminal 110, and to avoid the positional deviation of the pin terminal 110, and to avoid the positional deviation of the other pin terminals 110 due to the deformation of the pin terminal 110. can do. Therefore, the pin-like terminal 110 of the multipolar connector 101 can be properly and smoothly inserted into the through hole 42 of the control circuit board 40.
- the protective portion 121 covers the periphery of the through hole connection portion 112 to protect the through hole connection portion 112. Therefore, deformation of the through hole connection portion 112 can be prevented, and the positional deviation can be prevented.
- the through hole connection portion 112 can be appropriately and smoothly inserted into the through hole 42 of the control circuit board 40. Therefore, since the through hole connection portion 112 of each pin-like terminal 110 can be properly and smoothly inserted into the through hole 42 of the control circuit board 40, the solder connection of the through hole connection portion 112 can be stably performed. It is possible to suppress the variation in the conductivity of the pin terminal 110.
- FIG. 8 is a perspective view of a first modified example of the multipolar connector.
- FIG. 9 shows the multipolar connector of FIG. 8, wherein (A) is a plan view, (B) is a front view, and (C) is a bottom view.
- FIG. 10 is a right side view of the multipolar connector of FIG. 8;
- the same members as those shown in FIGS. 5 to 7 are denoted by the same reference numerals, and the description thereof may be omitted.
- the multipole connector 101 shown in FIGS. 8 to 10 has the same basic configuration as the multipole connector 101 shown in FIGS. 5 to 7, but the shape of the pin terminal 110 and the arrangement position of the protection portion 121 are different. .
- each pin-shaped terminal 110 is formed by punching and bending a metal plate, and is configured to extend in the connection direction.
- Each pin-shaped terminal 110 extends in the connecting direction, and from the lower end in the connecting direction of the holding portion 111 held by the holding member 120, the through hole connecting portion 112 extending from the upper end in the connecting direction of the holding portion 111, And an extending surface mount connection 113.
- the through hole connection portion 112 is inserted into a through hole 42 (see FIG. 3) formed in the control circuit board 40 and is soldered.
- the through hole connection portion 112 is a kind of straight line extending upward from the upper end in the connection direction of the holding portion 111. is there.
- the surface mounting connection portion 113 in each pin-like terminal 110 is surface mounted on the conductive pad (not shown) on the substrate 31 in the semiconductor module 30 and soldered.
- Each surface mounting connection portion 113 includes a front extension 113a extending forward from the lower end in the connection direction of the holding portion 111, a vertical portion 113b extending downward from the front end of the front extension 113a, and a rear end from the lower end of the vertical portion 113b. And a solder connection portion 113c which is soldered to the conductive pad.
- the holding member 120 is a member having a rectangular cross section extending in the direction indicated by the arrow X perpendicular to the connecting direction indicated by the arrow Y, and is formed by molding an insulating resin.
- the holding member 120 holds the plurality of pin-shaped terminals 110 at a predetermined pitch. By holding the plurality of pin-shaped terminals 110 by the holding member 120, the through hole connection portion 112 and the surface mounting connection portion 113 in each pin-shaped terminal 110 can be positioned.
- a protection portion 121 for protecting a specific pin-shaped terminal 110 among the plurality of pin-shaped terminals 110 is provided in a part of the direction in which the holding member 120 extends.
- the protection portion 121 is configured to extend so as to protrude in the connection direction of the pin-like terminal 110 to be protected from the holding member 120 and to cover the periphery of the pin-like terminal 110.
- the amount of protrusion of each protection portion 121 from the holding portion 120 is such that the through hole connection portion 112 is exposed at most and can be inserted and connected to the through hole 42 of the control circuit board 40.
- Each protection portion 121 has a cylindrical shape.
- the protective portions 121 are provided at both ends in the direction in which the holding member 120 extends.
- the two protection portions 121 installed at both ends in the extending direction of the holding member 120 protect the pin-shaped terminals 110 located at both outer ends of the plurality of pin-shaped terminals 110 formed in a line. It has become.
- the multipolar connector 101 of the present embodiment among the plurality of pin-shaped terminals 110 arranged in a line, the external force most acts when connecting to the control circuit board 40 or transporting the multipolar connector 101, etc.
- the pin-like terminals 110 located at both ends of the flexible outer side can be protected by the protection portion 121.
- the protection part 121 covers the circumference
- the through hole connection portion 112 can be appropriately and smoothly inserted into the through hole 42 of the control circuit board 40. Therefore, since the through hole connection portion 112 of each pin-like terminal 110 can be properly and smoothly inserted into the through hole 42 of the control circuit board 40, the solder connection of the through hole connection portion 112 can be stably performed. It is possible to suppress the variation in the conductivity of the pin terminal 110.
- FIG. 11 shows a second modification of the multipolar connector, in which (A) is a plan view, (B) is a front view, and (C) is a bottom view.
- FIG. 12 shows the multipolar connector of FIG. 11, wherein (A) is a left side view and (B) is a right side view.
- the same members as those shown in FIGS. 5 to 7 are denoted by the same reference numerals, and the description thereof may be omitted.
- the multipole connector 101 shown in FIGS. 11 and 12 has the same basic configuration as the multipole connector 101 shown in FIGS. 8 to 10, but the arrangement position of the protection portion 121 is different.
- the plurality of pin-shaped terminals 110 are arranged at a predetermined pitch in a line in a direction perpendicular to the connection direction.
- Each pin-shaped terminal 110 is formed by punching and bending a metal plate, and is configured to extend in the connection direction.
- Each pin-shaped terminal 110 extends in the connecting direction, and from the lower end in the connecting direction of the holding portion 111 held by the holding member 120, the through hole connecting portion 112 extending from the upper end in the connecting direction of the holding portion 111, And an extending surface mount connection 113.
- the through hole connection portion 112 is inserted into a through hole 42 (see FIG. 3) formed in the control circuit board 40 and is soldered.
- the pin-like terminal 110 is of one type.
- the through hole connection portion 112 of the pin-like terminal 110 extends in a straight line upward from the upper end in the connection direction of the holding portion 111.
- the surface mounting connection portion 113 in each pin-like terminal 110 is surface mounted on the conductive pad (not shown) on the substrate 31 in the semiconductor module 30 and soldered.
- Each surface mounting connection portion 113 includes a front extension 113a extending forward from the lower end in the connection direction of the holding portion 111, a vertical portion 113b extending downward from the front end of the front extension 113a, and a rear end from the lower end of the vertical portion 113b. And a solder connection portion 113c which is soldered to the conductive pad.
- the holding member 120 is a member having a rectangular cross section extending in a direction perpendicular to the connection direction, and is formed by molding an insulating resin.
- the holding member 120 holds the plurality of pin-shaped terminals 110 at a predetermined pitch. By holding the plurality of pin-shaped terminals 110 by the holding member 120, the through hole connection portion 112 and the surface mounting connection portion 113 in each pin-shaped terminal 110 can be positioned.
- a protection portion 121 for protecting a specific pin-shaped terminal 110 among the plurality of pin-shaped terminals 110 is provided in a part of the direction in which the holding member 120 extends.
- the protection portion 121 is configured to extend so as to protrude in the connection direction of the pin-like terminal 110 to be protected from the holding member 120 and to cover the periphery of the pin-like terminal 110.
- the protection portion 121 has a cylindrical shape. The amount of protrusion of each protection portion 121 from the holding portion 120 is such that the through hole connection portion 112 is exposed at most and can be inserted and connected to the through hole 42 of the control circuit board 40.
- the protective portion 121 differs from the protective portion 121 shown in FIGS. 8 to 10 in that one end portion in the direction in which the holding member 120 extends and a portion spaced a predetermined distance from the one end portion A protection portion 121 is installed at a portion inside the other end of the holding member 120. Then, among the plurality of pin-like terminals 110 formed in a line by the two protective portions 121, the pin-like terminal 110 located at the outer end, and the pin at the other end away from the pin-like terminal 110 by a predetermined distance And the pin-like terminal 110 inside the pin-like terminal 110 (specifically, the two inner sides of the pin-like terminal 110 at the other outer end).
- the external force most acts when connecting to the control circuit board 40 or transporting the multipolar connector 101, etc.
- the protective portion 121 can protect the pin-like terminal 110 located at the easy outer side end and the pin-like terminal 110 inside the pin-like terminal 110 at the other end outside the pin-like terminal 110 by a predetermined distance.
- the pin-like terminal 110 located at the outer end and the pin-like terminal 110 inside the pin-like terminal 110 at the other end away from the pin-like terminal 110 by a predetermined distance are applied to these pin-like terminals 110 It is possible to prevent the deformation of the pin terminal 110, and to avoid the positional deviation of the pin terminal 110, and to avoid the positional deviation of the other pin terminals 110 due to the deformation of the pin terminal 110. can do. Therefore, the pin-like terminal 110 of the multipolar connector 101 can be properly and smoothly inserted into the through hole 42 of the control circuit board 40.
- the protective portion 121 covers the periphery of the through hole connection portion 112 to protect the through hole connection portion 112. Therefore, deformation of the through hole connection portion 112 can be prevented, and the positional deviation can be prevented.
- the through hole connection portion 112 can be appropriately and smoothly inserted into the through hole 42 of the control circuit board 40. Therefore, since the through hole connection portion 112 of each pin-like terminal 110 can be properly and smoothly inserted into the through hole 42 of the control circuit board 40, the solder connection of the through hole connection portion 112 can be stably performed. It is possible to suppress the variation in the conductivity of the pin terminal 110.
- the plurality of pin-shaped terminals 110 arranged in the direction perpendicular to the connection direction may be arranged in a plurality of rows, not limited to a single row.
- the arrangement of the protection portion 121 is located at the outer end of the plurality of pin-like terminals 110 formed in a line by the two protection portions 121 shown in FIGS. 5 to 7 and FIGS.
- the protective part 121 is provided in a part of the holding member 120 without being limited to the case of protecting the pin-like terminals 110 located at both outer ends A particular pin-shaped terminal 110 among the plurality of pin-shaped terminals 110 may be protected by 121.
- a protection portion 121 is provided on a part of the holding member 120 and the pin-shaped terminal 110 of the plurality of pin-shaped terminals 110 is protected by the protection portion 121, connection to the control circuit board 40 or It is possible to protect a specific pin-shaped terminal 110 by the protection portion 121 at the time of transportation of the connector 101 or the like, and to prevent the pin-shaped terminal 110 from being deformed even if any external force acts on the pin-shaped terminal 110 be able to. For this reason, while being able to avoid position shift of the said specific pin-like terminal 110, position shift of the other pin-like terminal 110 by the said specific pin-like terminal 110 deforming can also be avoided. Thereby, the pin-shaped terminal 110 of the multipolar connector 101 can be properly and smoothly inserted into the through hole 42 of the control circuit board 40.
- the number of protection parts 121 may be any number, and all the pin-like terminals 110 may be protected.
- the protective portion 121 does not necessarily have to have a cylindrical shape as long as it extends so as to protrude in the connecting direction of the pin-like terminal 110 to be protected from the holding member 120 and covers the periphery of the pin-like terminal 110.
- the inclined surface 122 may not necessarily be formed at the tip of the protective portion 121 in the connection direction.
- the holding member 120 and the protection part 121 do not necessarily need to be formed by insert molding with the several pin-shaped terminal 110, either.
- the protective portion 121 does not necessarily have to be provided with the opening portion 123 for the pressing jig which suppresses the deformation of the pin-like terminal 110 at the time of insert molding.
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Abstract
Description
図13に示す多極コネクタ201は、接続方向に対して垂直な方向に一列状に所定ピッチで配列された複数のピン状端子202と、これらピン状端子202を保持する絶縁性部材203A,203Bとを備えている。そして、各ピン状端子202には、伸延方向の略中央にくの字状に湾曲するくの字湾曲部203が形成されている。各ピン状端子202の伸延方向の上端部には、上側回路基板(図示せず)に半田接続される上側基板接続部204が形成され、伸延方向の下端部には、S字状に湾曲するS字状湾曲部205が形成されている。このS字状湾曲部205の下端部に、下側回路基板(図示せず)に半田接続される下側基板接続部206が形成されている。そして、上側基板接続部204は、上側回路基板(例えば、制御回路基板)に形成されたスルーホールに挿通されて半田接続され、下側基板接続部206は、下側回路基板(例えば、パワー回路基板)上に表面実装されて半田接続される。
また、互いに電子部品が実装された回路基板同士を相互に接続するための多極コネクタの他の例として、例えば、図14及び図15に示すものも知られている(特許文献2参照)。
更に、多極コネクタの更に他の例として、例えば、図16に示すものも知られている(特許文献3参照)。
標準圧接端子401A,401Bの各タブ部412a,412bを樹脂材420で連結することにより、標準圧接端子401A,401Bの各タブ部412a,412bを一括して位置決めすることができる。
即ち、図13に示した多極コネクタ201の場合、絶縁性部材203A,203Bにより複数のピン状端子202を一体化することができると共に、各ピン状端子202における上側基板接続部204及び下側基板接続部206の位置決めを行うことができる。しかし、各ピン状端子202は、必要最小限の細さで形成されていることから、上側基板接続部204を上側回路基板に形成されたスルーホールに挿通して半田接続する際や多極コネクタ201の搬送時において、何らかの外力が作用し変形を生じるおそれがある。複数のピン状端子202のうち特定のピン状端子202に変形が生じると、当該ピン状端子202に位置ずれが生じる。また、複数のピン状端子202のうち特定のピン状端子202に変形が生じると、絶縁性部材203A,203Bを介して他のピン状端子202にも位置ずれが生じてしまうおそれがある。各ピン状端子202に位置ずれが生じると、特に、上側基板接続部204に位置ずれが生じると、上側回路基板に形成されたスルーホールに挿通できないおそれがある。
更に、図16に示した多極コネクタ401の場合には、各標準圧接端子401A,401Bはタブ部412a,412bを有し、比較的広い幅を有するが、やはり、何らかの外力が作用した際に変形を生じるおそれがあり、図13に示した多極コネクタ201と同様の問題が生じる。
従って、本発明はこれら従来の問題点を解決するためになされたものであり、その目的は、接続方向に対して垂直な方向に列状に配置された複数のピン状端子のうちの特定のピン状端子の変形を防止し、当該ピン状端子の位置ずれ及び他のピン状端子の位置ずれを防止できる多極コネクタを提供することにある。
この多極コネクタによれば、保持部材の一部に、複数のピン状端子のうち特定のピン状端子を保護する保護部であって、保持部材から保護するピン状端子の接続方向に突出するように延びて当該ピン状端子の周囲を覆う保護部を設けたので、回路基板への接続時や多極コネクタの搬送時等において保護部によって特定のピン状端子を保護することができ、そのピン状端子に何らかの外力が作用してもそのピン状端子に変形が生じることを回避することができる。このため、当該特定のピン状端子の位置ずれを回避できるとともに、当該特定のピン状端子が変形したことによる他のピン状端子の位置ずれをも回避することができる。これにより、多極コネクタのピン状端子を回路基板のスルーホールに適切かつ円滑に挿通することができる。
保護部を保持部材と一体成形する場合、保護部を保持部材ともに簡単な製造工程で製造することができる。
更に、この多極コネクタにおいて、前記保護部は、前記保持部材が延びる方向の少なくとも一端部に設置され、列状に配置された前記複数のピン状端子のうち少なくとも外側一端に位置するピン状端子を保護することが好ましい。
この多極コネクタによれば、列状に配置された複数のピン状端子のうち、回路基板への接続時や多極コネクタの搬送時等において最も外力が作用し易い外側一端に位置するピン状端子を保護部によって保護することができる。
この多極コネクタによれば、列状に配置された複数のピン状端子のうち、回路基板への接続時や多極コネクタの搬送時等において最も外力が作用し易い外側両端に位置するピン状端子を保護部によって保護することができる。このため、外側両端に位置するピン状端子に何らかの外力が作用してもそのピン状端子に変形が生じることを回避することができ、外側両端のピン状端子の位置ずれを回避できるとともに、当該外側両端のピン状端子が変形したことによる他のピン状端子の位置ずれをも回避することができる。これにより、多極コネクタのピン状端子を回路基板のスルーホールにより適切かつ円滑に挿通することができる。
この多極コネクタによれば、列状に配置された複数のピン状端子のうち、回路基板への接続時や多極コネクタの搬送時等において最も外力が作用し易い外側一端に位置するピン状端子とこのピン状端子から所定距離離間し外側他端にあるピン状端子よりも内側のピン状端子とを保護部によって保護することができる。
保護部の接続方向の先端に傾斜面を形成した場合、組立等においてピン状端子が曲げ荷重を受けた場合にも、ピン状端子と保護部との境目に応力集中することを防止できる。
また、この多極コネクタにおいて、前記保持部材及び前記保護部は、前記複数のピン状端子ともにインサート成形によって形成されることが好ましい。
この多極コネクタによれば、保持部材及び前記保護部を、複数のピン状端子ともにインサート成形によって形成することで、多極コネクタを簡単な製造工程で製造することができる。
更に、この多極コネクタにおいて、前記保護部に、インサート成形時に前記ピン状端子の変形を抑制する押え治具用の開口部を設けてもよい。
保護部に、インサート成形時にピン状端子の変形を抑制する押え治具用の開口部を設けた場合、インサート成形時に開口部から押え治具によってピン状端子を押えることで、ピン状端子の変形を防止することができる。
また、この多極コネクタにおいて、前記保護部は、前記スルーホール接続部の周囲を覆って当該スルーホール接続部を保護することが好ましい。
このように、保護部をスルーホール接続部の周囲を覆って当該スルーホール接続部を保護するようにすると、スルーホール接続部の変形を防止できるとともに、その位置ずれを防止することができる。このため、スルーホール接続部を回路基板のスルーホールに適切かつ円滑に挿通することができる。
また、本発明の別の態様に係る多極コネクタは、接続方向に対して垂直な方向に列状に配置された複数のピン状端子のうちの特定のピン状端子の変形を防止し、当該ピン状端子の位置ずれ及び他のピン状端子の位置ずれを防止できる多極コネクタである。
図1には、本発明に係る多極コネクタが用いられる電動パワーステアリング装置の基本構造が示されており、電動パワーステアリング装置において、操向ハンドル1のコラム軸2は、減速ギア3、ユニバーサルジョイント4A及び4B、ピニオンラック機構5を経て操向車輪のタイトロッド6に連結されている。コラム軸2には、操向ハンドル1の操舵トルクを検出するトルクセンサ7が設けられており、操向ハンドル1の操舵力を補助する電動モータ8が減速ギア3を介してコラム軸2に連結されている。電動パワーステアリング装置を制御するコントローラ10には、バッテリー(図示せず)から電力が供給されるとともに、イグニションキー(図示せず)を経てイグニションキー信号IGN(図2参照)が入力される。コントローラ10は、トルクセンサ7で検出された操舵トルクTsと車速センサ9で検出された車速Vとに基づいて、アシスト(操舵補助)指令となる操舵補助指令値の演算を行い、演算された操舵補助指令値に基づいて電動モータ8に供給する電流を制御する。
トルクセンサ7で検出された操舵トルクTs及び車速センサ9で検出された車速Vは制御演算部としての制御演算装置11に入力され、制御演算装置11で演算された電流指令値をゲート駆動回路12に入力する。ゲート駆動回路12で、電流指令値等に基づいて形成されたゲート駆動信号はFETのブリッジ構成で成るモータ駆動部13に入力され、モータ駆動部13は非常停止用の遮断装置14を経て3相ブラシレスモータで構成される電動モータ8を駆動する。3相ブラシレスモータの各相電流は電流検出回路15で検出され、検出された3相のモータ電流ia~icは制御演算装置11にフィードバック電流として入力される。また、電動モータ8には、ホールセンサ等の回転センサ16が取り付けられており、回転センサ16からの回転信号RTがロータ位置検出回路17に入力され、検出された回転位置θが制御演算装置11に入力される。
また、モータ駆動部13の回路構成について説明すると、電源ライン81に対し、直列に接続されたFETTr1及びTr2、FETTr3及びTr4、及びFETTr5及びTr6が並列に接続されている。そして、電源ライン81に対して、並列に接続されたFETTr1及びTr2、FETTr3及びTr4、及びFETTr5及びTr6が接地ライン82に接続されている。これにより、インバータを構成する。ここで、FETTr1及びTr2は、FETTr1のソース電極SとFETTr2のドレイン電極Dとが直列に接続され、3相モータのc相アームを構成し、c相出力ライン91cにて電流が出力される。また、FETTr3及びTr4は、FETTr3のソース電極SとFETTr4のドレイン電極Dとが直列に接続され、3相モータのa相アームを構成し、a相出力ライン91aにて電流が出力される。更に、FETTr5及びTr6は、FETTr5のソース電極SとFETTr6のドレイン電極Dとが直列に接続され、3相モータのb相アームを構成し、b相出力ライン91bにて電流が出力される。
ここで、ケース20は、略矩形状に形成され、半導体モジュール30を載置するための平板状の半導体モジュール載置部21と、半導体モジュール載置部21の長手方向端部に設けられた、電力及び信号用コネクタ50を実装するための電力及び信号用コネクタ実装部22と、半導体モジュール載置部21の幅方向端部に設けられた、3相出力用コネクタ60を実装するための3相出力用コネクタ実装部23とを備えている。
そして、半導体モジュール30には、図3及び図4に示すように、複数の多極コネクタ101が実装され、これら多極コネクタ101によって半導体モジュール30と制御回路基板40とが相互接続されるようになっている。
ここで、多極コネクタ101について、図5乃至図7を参照して詳細に説明する。図5は、多極コネクタの斜視図である。図6は、図5の多極コネクタを示し、(A)は平面図、(B)は正面図、(C)は底面図である。図7は、図5の多極コネクタを示し、(A)は左側面図、(B)は右側面図である。
複数のピン状端子110は、図5における矢印Yで示す接続方向に対して垂直な矢印Xで示す方向に一列状に所定ピッチで配置されている。各ピン状端子110は、金属板を打抜き及び曲げ加工することによって形成され、接続方向に延びるよう構成されている。そして、各ピン状端子110は、接続方向に延び、保持部材120によって保持される保持部111と、保持部111の接続方向上端から延びるスルーホール接続部112と、保持部111の接続方向下端から延びる表面実装接続部113とを備えている。
また、保持部材120は、矢印Yで示す接続方向に対して垂直な矢印Xで示す方向に延びる断面矩形状の部材であり、絶縁性の樹脂を成形することによって形成される。保持部材120は、複数のピン状端子110を所定ピッチで保持する。この保持部材120で複数のピン状端子110を保持することにより、各ピン状端子110におけるスルーホール接続部112及び表面実装接続部113の位置決めを行うことができる。
そして、この保持部材120が延びる方向の一部には、複数のピン状端子110のうち特定のピン状端子110を保護する保護部121が設けられている。この保護部121は、保持部材120から保護するピン状端子110の接続方向に突出するように延びて当該ピン状端子110の周囲を覆うように構成される。
また、保持部材120及び保護部121は、複数のピン状端子110とともにインサート成形によって形成される。これにより、多極コネクタ101を簡単な製造工程で製造することができる。
また、保護部121の側部には、インサート成形時に保護されるピン状端子110の変形を抑制する押え治具用の開口部123が形成されている。これにより、インサート成形時に開口部123から押え治具によってピン状端子110を押えることで、ピン状端子110の変形を防止することができる。
そして、3相出力用コネクタ60は、a相出力端子92a、b相出力端子92b、及びc相出力端子92cからの電流を出力するために用いられる。3相出用コネクタ60は、図3に示すように、半導体モジュール載置部21の幅方向端部に設けられた3相出力用コネクタ実装部23に複数の取付けねじ61により取り付けられる。3相出力コネクタ60には、取付けねじ61が挿通する複数の貫通孔60aが形成されている。
更に、カバー70は、半導体モジュール30、制御回路基板40、電力及び信号用コネクタ50、及び3相出力用コネクタ60が取り付けられたケース20に対し、図3に示すように、制御回路基板40の上方から当該制御回路基板40を覆うように取り付けられる。
先ず、多極コネクタ101を搭載した半導体モジュール30を、図3に示すように、ケース20の半導体モジュール載置部21上に複数の取付けねじ38により取り付ける。多極コネクタ101を半導体モジュール30に実装する際には、複数のピン状端子101の表面実装接続部113を基板31上の導電パッドに半田接続する。
この半導体モジュール30を半導体モジュール載置部21上に取り付けるに先立ち、放熱用シート39を半導体モジュール載置部21上に取付け、その放熱用シート39の上から半導体モジュール30を取り付ける。この放熱用シート39により、半導体モジュール30で発生した熱が放熱用シート39を介してケース20に放熱される。
この際に、半導体モジュール30に実装されている多極コネクタ101の各ピン状端子110のスルーホール接続部112を、制御回路基板40の各スルーホール42に挿通させて半田接続する。
一方、各ピン状端子110は、金属板によって接続方向に細長く延びているため、この組立作業の際に、何らかの外力により変形してしまうことがある。複数のピン状端子110のうち特定のピン状端子110に外力が作用し変形が生じると、そのピン状端子110の位置ずれが発生するばかりでなく、保持部材120を介して他のピン状端子110の位置ずれも生じうる。
従って、各ピン状端子110のスルーホール接続部112を制御回路基板40のスルーホール42に適切かつ円滑に挿通することができるので、スルーホール接続部112の半田接続を安定して行えるとともに、各ピン状端子110における通電性のバラツキを抑制することができる。
図8乃至図10に示す多極コネクタ101は、図5乃至図7に示す多極コネクタ101と基本構成は同一であるが、ピン状端子110の形状及び保護部121の配置位置が異なっている。
また、各ピン状端子110における表面実装接続部113は、半導体モジュール30における基板31上の導電パッド(図示せず)に表面実装されて半田接続されるものである。各表面実装接続部113は、保持部111の接続方向下端から一旦前側に延びる前方延出部113aと、前方延出部113aの前端から下方に延びる垂直部113bと、垂直部113bの下端から後方に延び、導電パッドに半田接続される半田接続部113cとを備えている。
そして、この保持部材120が延びる方向の一部には、複数のピン状端子110のうち特定のピン状端子110を保護する保護部121が設けられている。この保護部121は、保持部材120から保護するピン状端子110の接続方向に突出するように延びて当該ピン状端子110の周囲を覆うように構成される。各保護部121の保持部120からの突出量は、最大でもスルーホール接続部112が露出して制御回路基板40のスルーホール42に挿通接続可能な程度である。各保護部121は、円筒形状である。
本実施例の多極コネクタ101によれば、一列状に配置された複数のピン状端子110のうち、制御回路基板40への接続時や多極コネクタ101の搬送時等において最も外力が作用し易い外側両端に位置するピン状端子110を保護部121によって保護することができる。このため、外側両端に位置するピン状端子110に何らかの外力が作用してもそれらピン状端子110に変形が生じることを回避することができ、外側両端のピン状端子110の位置ずれを回避できるとともに、当該外側両端のピン状端子110が変形したことによる他のピン状端子110の位置ずれをも回避することができる。これにより、多極コネクタ101のピン状端子110のスルーホール接続部112を制御回路基板40のスルーホール42により適切かつ円滑に挿通することができる。
従って、各ピン状端子110のスルーホール接続部112を制御回路基板40のスルーホール42に適切かつ円滑に挿通することができるので、スルーホール接続部112の半田接続を安定して行えるとともに、各ピン状端子110における通電性のバラツキを抑制することができる。
図11及び図12に示す多極コネクタ101は、図8乃至図10に示す多極コネクタ101と基本構成は同一であるが、保護部121の配置位置が異なっている。
また、各ピン状端子110における表面実装接続部113は、半導体モジュール30における基板31上の導電パッド(図示せず)に表面実装されて半田接続されるものである。各表面実装接続部113は、保持部111の接続方向下端から一旦前側に延びる前方延出部113aと、前方延出部113aの前端から下方に延びる垂直部113bと、垂直部113bの下端から後方に延び、導電パッドに半田接続される半田接続部113cとを備えている。
そして、この保持部材120が延びる方向の一部には、複数のピン状端子110のうち特定のピン状端子110を保護する保護部121が設けられている。この保護部121は、保持部材120から保護するピン状端子110の接続方向に突出するように延びて当該ピン状端子110の周囲を覆うように構成される。保護部121は円筒形状である。各保護部121の保持部120からの突出量は、最大でもスルーホール接続部112が露出して制御回路基板40のスルーホール42に挿通接続可能な程度である。
従って、各ピン状端子110のスルーホール接続部112を制御回路基板40のスルーホール42に適切かつ円滑に挿通することができるので、スルーホール接続部112の半田接続を安定して行えるとともに、各ピン状端子110における通電性のバラツキを抑制することができる。
例えば、接続方向に対して垂直な方向に配置された複数のピン状端子110は、一列状に限らず複数列状に配置されていても良い。
また、保護部121の配置の仕方は、図5乃至図7及び図11、図12に示した2つの保護部121によって一列状に形成された複数のピン状端子110のうち外側一端に位置するピン状端子110と、このピン状端子110から所定距離離間し外側他端にあるピン状端子110よりも内側のピン状端子110とを保護する場合、図8乃至図10に示した2つの保護部121によって一列状に形成された複数のピン状端子110のうち外側両端に位置するピン状端子110を保護する場合に限らず、保持部材120の一部に保護部121を設け、この保護部121によって複数のピン状端子110のうち特定のピン状端子110を保護するようにすればよい。
また、保護部121は、保持部材120から保護するピン状端子110の接続方向に突出するように延びて当該ピン状端子110の周囲を覆うものであれば、必ずしも円筒形状である必要はない。
更に、保護部121の接続方向の先端には、必ずしも傾斜面122を形成しなくても良い。
また、保持部材120及び保護部121は、複数のピン状端子110ともにインサート成形によって形成される必要は必ずしもない。
また、保護部121に、インサート成形時にピン状端子110の変形を抑制する押え治具用の開口部123を設ける必要は必ずしもない。
2 コラム軸
3 減速ギア3
4A,4B ユニバーサルジョイント
5 ピニオンラック機構
6 タイトロッド
7 トルクセンサ
8 電動モータ
9 車速センサ
10 コントローラ
11 制御演算装置
12 ゲート駆動回路
13 モータ駆動部
14 非常停止用の遮断装置
15 電流検出回路
16 回転センサ
17 ロータ位置検出回路
18 IGN電圧モニタ部
19 電源回路部
20 ケース
21 半導体モジュール載置部
21a ねじ孔
22 電力及び信号用コネクタ実装部
23 3相出力用コネクタ実装部
23a ねじ孔
24 取付けポスト
24a ねじ孔
30 半導体モジュール(パワー回路基板、一方の回路基板)
31 基板
31a 貫通孔
35 ベアチップFET(ベアチップトランジスタ)
37 表面実装部品
38 取付けねじ
39 放熱用シート
40 制御回路基板(他方の回路基板)
40a 貫通孔
41 取付けねじ
50 電力及び信号用コネクタ
51 取付けねじ
60 3相出力用コネクタ
60a 貫通孔
61 取付けねじ
70 カバー
81電源ライン
81a 正極端子
82 接地ライン
82a 負極端子
90 3相出力部
91a a相出力ライン
91b b相出力ライン
91c c相出力ライン
101 多極コネクタ
110 ピン状端子
111 保持部
112 スルーホール接続部
113 表面実装接続部
113a 前方延出部
113b 垂直部
113c 半田接続部
120 保持部材
121 保護部
122 傾斜面
123 開口部
Claims (10)
- 接続方向に対して垂直な方向に列状に配置され、各々が接続方向に延びる複数のピン状端子と、接続方向に対して垂直な方向に延びて前記複数のピン状端子を所定ピッチで保持する保持部材とを備えた多極コネクタであって、
前記保持部材の一部に、前記複数のピン状端子のうち特定のピン状端子を保護する保護部であって、前記保持部材から保護するピン状端子の接続方向に突出するように延びて当該ピン状端子の周囲を覆う保護部を設けたことを特徴とする多極コネクタ。 - 前記保護部は、前記保持部材と一体成形されていることを特徴とする請求項1記載の多極コネクタ。
- 前記保護部は、前記保持部材が延びる方向の少なくとも一端部に設置され、列状に配置された前記複数のピン状端子のうち少なくとも外側一端に位置するピン状端子を保護することを特徴とする請求項1又は2記載の多極コネクタ。
- 前記保護部は、前記保持部材が延びる方向の両端部に設置され、列状に形成された前記複数のピン状端子のうち外側両端に位置するピン状端子を保護することを特徴とする請求項3記載の多極コネクタ。
- 前記保護部は、前記保持部材が延びる方向の一端部とこの一端部から所定距離離間した部分であって前記保持部材の他端部より内側の部分とに設置され、列状に形成された前記複数のピン状端子のうち外側一端に位置するピン状端子と、このピン状端子から所定距離離間し外側他端にあるピン状端子よりも内側のピン状端子とを保護することを特徴とする請求項3記載の多極コネクタ。
- 前記保護部の接続方向の先端に傾斜面を形成したことを特徴とする請求項1乃至5のうちいずれか一項に記載の多極コネクタ。
- 前記保持部材及び前記保護部は、前記複数のピン状端子ともにインサート成形によって形成されることを特徴とする請求項1乃至6のうちいずれか一項に記載の多極コネクタ。
- 前記保護部に、インサート成形時に前記ピン状端子の変形を抑制する押え治具用の開口部を設けたことを特徴とする請求項7記載の多極コネクタ。
- 前記複数のピン状端子の各々は、接続方向に延び、前記保持部材によって保持される保持部と、該保持部の接続方向一端から延び、一方の回路基板に形成されたスルーホールに挿通されて半田接続されるスルーホール接続部と、前記保持部の接続方向他端から延び、他方の回路基板上に表面実装されて半田接続される表面実装接続部とを備えることを特徴とする請求項1乃至8のうちいずれか一項に記載の多極コネクタ。
- 前記保護部は、前記スルーホール接続部の周囲を覆って当該スルーホール接続部を保護することを特徴とする請求項9記載の多極コネクタ。
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JP2014560664A JP5943098B2 (ja) | 2013-02-06 | 2014-01-15 | 多極コネクタ |
CN201480005398.6A CN104937780B (zh) | 2013-02-06 | 2014-01-15 | 多极连接器 |
US14/401,887 US9318821B2 (en) | 2013-02-06 | 2014-01-15 | Multipolar connector |
EP14749617.8A EP2955790B1 (en) | 2013-02-06 | 2014-01-15 | Multipole connector |
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WO2016039413A1 (ja) * | 2014-09-11 | 2016-03-17 | 日本精工株式会社 | 多極リード部品及び基板の接続装置 |
JP2017011017A (ja) * | 2015-06-18 | 2017-01-12 | 富士電機株式会社 | 半導体装置及び半導体装置の製造方法 |
WO2021048261A1 (de) * | 2019-09-11 | 2021-03-18 | Interplex NAS Electronics GmbH | Stromrichter für ein fahrzeug |
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DE102011055349B3 (de) * | 2011-11-15 | 2013-01-17 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt | Gehäuse und Bausatz für eine Steuerungsvorrichtung |
DE102014202316B4 (de) * | 2014-02-07 | 2021-04-01 | Te Connectivity Germany Gmbh | Kontaktträger mit einem Grundkörper und wenigstens einem Kontaktelement, Werkzeug zum Spritzgießen eines Kontaktträgers und Verfahren zur Herstellung eines Kontaktträgers |
CN107210559B (zh) * | 2015-02-06 | 2019-04-12 | 日本精工株式会社 | 连接器 |
JP2018073791A (ja) * | 2016-11-04 | 2018-05-10 | 住友電装株式会社 | 電気接続箱 |
CN110089857A (zh) * | 2019-05-08 | 2019-08-06 | 杭州一骑轻尘信息技术有限公司 | 一种文件存储装置及系统 |
CN114062797B (zh) * | 2020-08-05 | 2024-05-24 | 华中科技大学 | 一种用于针状端子全桥型功率模块的动态测试板 |
EP3982384B1 (en) * | 2020-10-06 | 2023-07-26 | Veoneer Passive Co. AB | Electronic control unit |
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WO2016039413A1 (ja) * | 2014-09-11 | 2016-03-17 | 日本精工株式会社 | 多極リード部品及び基板の接続装置 |
JP6098767B2 (ja) * | 2014-09-11 | 2017-03-22 | 日本精工株式会社 | 多極リード部品及び基板の接続装置 |
JPWO2016039413A1 (ja) * | 2014-09-11 | 2017-04-27 | 日本精工株式会社 | 多極リード部品及び基板の接続装置 |
CN106716723A (zh) * | 2014-09-11 | 2017-05-24 | 日本精工株式会社 | 多极引线部件及基板的连接装置 |
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CN106716723B (zh) * | 2014-09-11 | 2018-04-10 | 日本精工株式会社 | 多极引线部件及基板的连接装置 |
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WO2021048261A1 (de) * | 2019-09-11 | 2021-03-18 | Interplex NAS Electronics GmbH | Stromrichter für ein fahrzeug |
Also Published As
Publication number | Publication date |
---|---|
US20150144392A1 (en) | 2015-05-28 |
CN104937780B (zh) | 2017-05-03 |
EP2955790A1 (en) | 2015-12-16 |
EP2955790A4 (en) | 2016-09-07 |
JP5943098B2 (ja) | 2016-06-29 |
EP2955790B1 (en) | 2020-02-26 |
JPWO2014122883A1 (ja) | 2017-01-26 |
CN104937780A (zh) | 2015-09-23 |
US9318821B2 (en) | 2016-04-19 |
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