JP6269272B2 - Connector device - Google Patents

Connector device Download PDF

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JP6269272B2
JP6269272B2 JP2014080770A JP2014080770A JP6269272B2 JP 6269272 B2 JP6269272 B2 JP 6269272B2 JP 2014080770 A JP2014080770 A JP 2014080770A JP 2014080770 A JP2014080770 A JP 2014080770A JP 6269272 B2 JP6269272 B2 JP 6269272B2
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connector
signal
housing
power
terminal
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JP2015201401A (en
Inventor
潤 梅津
潤 梅津
鈴木 幸雄
幸雄 鈴木
秋元 克弥
克弥 秋元
二口 尚樹
尚樹 二口
真也 林
真也 林
敬浩 二ツ森
敬浩 二ツ森
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日立金属株式会社
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Description

  The present invention relates to a connector provided in a power supply device having a switching element, and a connector device including a connector fitted to the connector.
  Conventionally, some power supply devices such as an inverter device having a switching element include a sensor for detecting an output current. In the inverter device described in Patent Document 1, a plurality of current sensors are housed in an inverter case, and motor feedback control is performed according to the current values detected by the plurality of current sensors.
  Further, a cable with a connector that can reduce the size of the inverter device by separating the current sensor from the inverter device has been proposed. A cable with a connector described in Patent Document 2 includes a power connector having a plurality of bus bars connected to output terminals of the inverter device, a plurality of cables connected to the inverter device via the power connector, and a plurality of cables. A plurality of current sensors for detecting a flowing current, and the plurality of current sensors are disposed in the power connector. The output signal of the current sensor is output to the inverter device via the harness led out from the housing of the power connector and the signal connector provided at the tip of the harness.
  Furthermore, the thing of patent document 3 is known as a connection structure for connecting an inverter apparatus and a wire harness. In the thing of patent document 3, a male connector is provided in an inverter apparatus and the female connector of a wire harness is fitted by this male connector. According to this fitting type connection structure, the inverter device and the wire harness can be easily attached and detached.
JP 2010-239811 A JP 2013-105714 A JP 2012-212679 A
  The present inventors considered arranging a current sensor in a power connector of a cable with a connector like the one described in Patent Document 2 while adopting a fitting type connection structure. However, in this case, the inverter case side connector to be fitted to the signal connector must be provided in the inverter case, and in addition to the power connector fitting work, the signal connector fitting work is required. There's a problem.
  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connector device capable of reducing the connector fitting work while having a fitting type connection structure with a built-in current sensor. And
  In order to solve the above-described problems, the present invention provides a first power connector provided in a power device having a switching element, and a connector device having a second power connector that fits into the first power connector. The first power connector includes a first connection terminal having one end connected to an output terminal in a housing of the power supply device, and an output signal from the second power connector side. A second signal connector for transmitting to the second connection terminal, and the second power connector flows to the second connection terminal connected to the other end of the first connection terminal and to the second connection terminal. A current sensor that detects a magnetic field generated by a current, and the second power connector is fitted to the first power connector so that it is fitted to the second signal connector, and the output signal of the current sensor The first Via the signal connector to provide a connector device including a first signal connector to be transmitted to the power supply.
  According to the connector of the present invention, it is possible to reduce the fitting work of the connector while having a fitting type connection structure with a built-in current sensor.
It is the schematic which shows the connector apparatus which concerns on embodiment of this invention, and its peripheral part. It is an enlarged view which expands and shows the connector in FIG. It is the schematic which shows an inverter apparatus. A perspective view mainly showing a substrate on which the first to third male terminals, the first to third female terminals, the first signal connector, the second signal connector, and the first to third current sensors are mounted. FIG.
[Embodiment]
FIG. 1 is an exploded perspective view showing a configuration example of a connector device according to an embodiment of the present invention. FIG. 2 is an enlarged view showing the first power connector. FIG. 3 is a schematic diagram showing an inverter device as a power supply device provided with a first power supply connector. 2 shows a state in which the first power supply connector is viewed from the side opposite to that in FIG. 1 (fitting side with the second power supply connector).
(Configuration of connector device 1)
The connector device 1 has a first power connector 2 and a second power connector 5, and the first power connector 2 is fitted by fitting the first power connector 2 and the second power connector 5. The first to third male terminals 21 to 23 as the first connection terminals and the first to third female terminals 51 to 53 as the second connection terminals of the second power connector 5 are electrically connected. The second signal connector 9B (shown in FIG. 2) provided on the first power connector 2 and the first signal connector 9A provided on the second power connector 5 are fitted together. .
  The first to third female terminals 51 to 53 are connected to a harness 6 including a U-phase electric wire 61, a V-phase electric wire 62, and a W-phase electric wire 63. The harness 6 and the second power connector 5 constitute a wire harness 7.
(Configuration of inverter device 10)
The first power connector 2 is provided in the inverter device 10 (shown in FIG. 3). The inverter device 10 is mounted on a vehicle, for example, converts a DC voltage output from a storage battery into an AC voltage by PWM (Pulse Width Modulation) modulation, and outputs the AC voltage to a three-phase AC motor as a drive source for driving the vehicle.
  As shown in FIG. 3, the inverter device 10 includes an inverter case 10 </ b> A as a housing, a circuit board 11 fixed to the inverter case 10 </ b> A, a plurality of switching elements 12 fixed to the circuit board 11, and a switching element 12. And a plurality of circuit components 14 for switching the switching element 12 between an on state and an off state, a terminal block 15, and the first power connector 2. . The circuit board 11, the plurality of switching elements 12, the circuit component 14, and the terminal block 15 are accommodated in the inverter case 10A. Part of the first power connector 2 is accommodated in the inverter case 10A, and the other part is exposed from the inverter case 10A.
  The inverter case 10A is made of a conductive metal such as an aluminum alloy, for example. In FIG. 3, a part of the inverter case 10A is cut to show the inside. The heat radiating fins 13 are disposed outside the inverter case 10 </ b> A, and are fixed at positions where the bottom surface of the inverter case 10 </ b> A is sandwiched between the plurality of switching elements 12.
  The switching element 12 is a power transistor, for example, and two switching elements 12 are provided for each phase (U phase, V phase, and W phase). That is, in the present embodiment, six switching elements 12 are fixed to the circuit board 11. In FIG. 3, three of these switching elements 12 are shown.
  The plurality of circuit components 14 include a logic circuit element for switching the on / off state of the switching element 12 to perform PWM modulation, an amplifying element, a passive element such as a resistor and a capacitor, and the like. Is mounted on the mounting surface opposite to the switching element 12.
  The terminal block 15 is disposed on the mounting surface side at the end of the circuit board 11. The terminal block 15 has a plurality of output terminals to be described later, and current of each phase is output from the plurality of output terminals.
  Part of the first power connector 2 is detachably provided in the inverter case 10A through a part of the opening 10a formed in the inverter case 10A. The first power connector 2 has a plurality of male terminals 21 to 23 (shown in FIG. 1) corresponding to the output terminals of a plurality of phases of current output from the inverter device 10.
  As shown in FIG. 1, the terminal block 15 includes a main body 150 made of resin and first to third output terminals 151 to 153. The first output terminal 151 is a U-phase current output terminal, the second output terminal 152 is a V-phase current output terminal, and the third output terminal 153 is a W-phase current output terminal. .
(Configuration of first power connector 2)
The first power connector 2 includes first to third male terminals 21 to 23 having one end connected to the first to third output terminals 151 to 153 of the terminal block 15, and first to third male terminals. And a first housing 20 that houses at least a part of the terminals 21 to 23.
  The first power connector 2 also includes a second signal connector 9B (shown in FIG. 2) that sends an output signal sent from the second power connector 5 side into the inverter device 10.
  The first to third male terminals 21 to 23 of the first power connector 2 are arranged in parallel in a predetermined arrangement direction corresponding to the first to third output terminals 151 to 153. In the present embodiment, one end portions of the first to third male terminals 21 to 23 are exposed from the first housing 20, and this exposed portion is connected to the first to third output terminals 151 to 153 of the terminal block 15. Connected. The first to third male terminals 21 to 23 each have one end connected to the first to third output terminals 151 to 153 of the terminal block 15 in a flat plate shape. An insertion hole is formed through which a bolt (not shown) for fixing the bolt is inserted.
  The first male terminal 21 of the first power connector 2 is fixed by a bolt (not shown) so as to contact the first output terminal 151 of the terminal block 15. Similarly, the second male terminal 22 is fixed to the second output terminal 152 and the third male terminal 23 is fixed to the third output terminal 153 by bolts (not shown) so as to be in contact with each other.
  The first housing 20 of the first power connector 2 includes an inner housing 201 made of resin and an outer housing 202 made of a conductive metal such as an aluminum alloy. The inner housing 201 is accommodated in the outer housing 202. The first to third male terminals 21 to 23 are held by the inner housing 201.
  The first to third male terminals 21 to 23 are arranged in parallel in a predetermined arrangement direction, and the second male terminal 22 is provided between the first male terminal 21 and the third male terminal 23. Is arranged. One end portions of the first to third male terminals 21 to 23 are parallel to each other.
  The outer housing 202 includes a cylindrical main body 202a, a pair of protrusions 202b (only one protrusion 202b is shown in FIGS. 1 and 2) formed on the outer surface of the main body 202a, and the protrusions 202b. It has a protrusion 202c provided at an end in the longitudinal direction and a plate-like flange portion 202d formed to protrude outward from the main body portion 202a. A pair of protrusion 202b is formed in the both ends of the alignment direction of the 1st thru | or 3rd male terminals 21-23 in the main-body part 202a. The protrusion 202c is formed at the end of the protrusion 202b opposite to the flange 202d. The flange portion 202d has a square plate shape, and bolt insertion holes 202e are formed at the four corners. The first power connector 2 is detachably fixed to the inverter case 10A by a bolt 24 (shown in FIG. 3) inserted through the bolt insertion hole 202e.
  As shown in FIG. 2, the other end portions of the first to third male terminals 21 to 23 pass through the inner housing 201 and are on the opening side of the main body portion 202a of the outer housing 202 (the side opposite to the flange portion 202d). Protruding. The inner housing 201 has a plurality of protrusions 201 a so that fingers of an operator or the like do not enter between the other end portions of the first to third male terminals 21 to 23 and the main body portion 202 a of the outer housing 202. The first to third male terminals 21 to 23 are formed so as to protrude in parallel.
  The second signal connector 9 </ b> B has a substantially rectangular main body 92, and has a plurality of (four in the present embodiment) second signal terminals toward the opening end side of the outer housing 202. A female terminal 91 is provided. The second signal connector 9B is held by the first power connector 2. Specifically, the second signal connector 9 </ b> B is fixed to the inner housing 201 and held by the first power supply connector 2, and the whole is accommodated in the outer housing 202. The signal female terminal 91 of the second signal connector 9B is electrically connected to a signal male terminal 90 as a first signal terminal of a first signal connector 9A, which will be described later, of the second power connector 5. Connected.
  In the signal female terminal 91, the end of the outer housing 202 on the opening side is covered with a main body 92 made of an insulating material such as resin. That is, the signal female terminal 91 is accommodated in the main body 92 such that the end of the outer housing 202 on the opening side is not exposed from the main body 92. The signal female terminal 91 is connected to the signal male terminal 90 by inserting the signal male terminal 90 through an insertion hole formed in the main body 92 on the opening side of the outer housing 202. Further, the second signal connector 9B is disposed closer to the opening of the outer housing 202 than the first to third male terminals 21 to 23. More specifically, the second signal connector 9 </ b> B includes first to third male terminals whose end surfaces of the outer housing 202 in the main body 92 are connected to the first to third female terminals 51 to 53. The terminals 21 to 23 are arranged closer to the opening of the outer housing 202 than the other ends of the terminals 21 to 23.
  Note that the second signal connector 9B is all housed and held in the outer housing 202 in this embodiment, but even if a part of the second signal connector 9B is exposed from the outer housing 202, Good.
(Configuration of the second power connector 5)
The other end portions of the first to third male terminals 21 to 23 are fitted to the first power connector 2 and the second power connector 5 so that the first to third females of the second power connector 5 are fitted. Contact terminals 51-53. The second power connector 5 includes a second housing 50, first to third female terminals 51 to 53, and a rotation lever 54. The second housing 50 includes an inner housing 501 made of resin and an outer housing 502 made of a conductive metal such as an aluminum alloy. The inner housing 501 is accommodated in the outer housing 502. The first to third female terminals 51 to 53 are held by the inner housing 501.
  The second power connector 5 has a plurality of current sensors (first to third current sensors 31 to 33 shown in FIG. 4) corresponding to the currents of the plurality of phases output from the inverter device 10. The output signal of the current sensor is transmitted to the circuit board 11 of the inverter device 10 by the signal line 4B via the first signal connector 9A and the second signal connector 9B. This output signal is used for feedback control of a three-phase AC motor.
  That is, the second power connector 5 detects the magnetic field generated by the current flowing through the second housing 50, the first to third female terminals 51 to 53, and the first to third female terminals 51 to 53. First to third current sensors 31 to 33, a substrate 30 on which the first to third current sensors 31 to 33 are mounted, a signal connector 9A, and first to third current sensors 31 to 33. The signal line 4A for transmitting the output signal from the substrate 30 to the first signal connector 9A. The first to third female terminals 51 to 53, the first to third current sensors 31 to 33, the substrate 30, and the signal line 4 </ b> A are accommodated in the second housing 50.
  In the outer housing 502, a pair of slide grooves 502a into which the protrusions 202b of the first power connector 2 are inserted are formed at both ends in the arrangement direction of the first to third female terminals 51 to 53. In addition, the outer housing 502 is formed with a protrusion 502 b that serves as a rotation axis of the rotation lever 54. The rotating lever 54 is formed with a curved groove 541 that is curved in an arc shape. The rotating lever 54 draws the protrusion 202c of the first power connector 2 along the curved groove 541 to the back side of the slide groove 502a by a rotation operation around the protrusion 502b, and the first power connector 2 and the second power connector 2 Secure the fitting with the power connector 5.
  One end of a U-phase electric wire 61 is connected to the first female terminal 51. One end of a V-phase electric wire 62 is connected to the second female terminal 52. Further, one end of a W-phase electric wire 63 is connected to the third female terminal 53. The other ends of the U-phase electric wire 61, the V-phase electric wire 62, and the W-phase electric wire 63 are electrically connected to the U-phase, V-phase, and W-phase windings of the three-phase AC motor via connectors not shown. Connected.
  The first signal connector 9 </ b> A has a substantially rectangular main body 93, and four signal male terminals 90 protrude from the open end side of the outer housing 502. The signal male terminal 90 is exposed from the main body 93 made of an insulating material such as resin. The first signal connector 9 </ b> A is held by the second power connector 5. Specifically, the first signal connector 9 </ b> A is fixed to the inner housing 501 and is held by the second power connector 5.
  The inner housing 501 is formed with a pair of projecting portions 502c projecting toward the inner surface of the outer housing 502, and the first signal connector 9A is provided between the pair of projecting portions 502c. It has been. In other words, the inner housing 501 is formed with a pair of projecting portions 502a projecting toward the inner surface of the outer housing 502 on both sides of the first signal connector 9A. The signal male terminal 90 is entirely accommodated in the outer housing 502, and is disposed farther from the opening of the outer housing 502 than the pair of projecting portions 502c. That is, the signal male terminal 90 is disposed inside the outer housing 502 with respect to the pair of projecting portions 502c.
  The four signal male terminals 90 are terminals for output signals of the current sensors 31 to 33 and a reference potential (ground). The first signal connector 9 </ b> A is entirely accommodated in the outer housing 502 in the present embodiment, but a part of the first signal connector 9 </ b> A may be exposed from the outer housing 502.
  Next, the internal structure of the first power connector 2 and the second power connector 5 will be described with reference to FIG.
  FIG. 4 shows first to third male terminals 21 to 23, first to third female terminals 51 to 53, first signal connector 9A, second signal connector 9B, and first to third. It is a perspective view which mainly shows the board | substrate 30 with which the current sensors 31-33 of this were mounted.
(Configuration of the first to third male terminals 21 to 23)
The first to third male terminals 21 to 23 of the first power connector 2 include a contact portion 2a that contacts the first to third female terminals 51 to 53 of the corresponding second power connector 5 and an inverter. A flat device connection portion 2b connected to the apparatus 10 is integrally provided. The shapes of the first to third male terminals 21 to 23 are common to each other.
  The contact portion 2a includes a plate-like bottom portion 210 formed continuously from the device connection portion 2b, and a pair of wall portions (first wall portion 211 and second wall portion 212) erected from the bottom portion 210. have. The first wall portion 211 has a convex portion 211a protruding toward the opposite side of the bottom portion 210, and the second wall portion 212 has a convex portion 212a protruding toward the opposite side of the bottom portion 210, respectively. Is formed. The convex portions 211a and 212a serve as stoppers that come into contact with the end portions of the frame portion 510 when the contact portion 2a is inserted inside a frame portion 510 to be described later of the first to third female terminals 51 to 53. .
  The device connection portion 2b is formed with an insertion hole 2c through which a bolt for connecting to the first to third output terminals 151 to 153 of the terminal block 15 is inserted at the end opposite to the contact portion 2a. .
(Configuration of the first to third female terminals 51 to 53)
The first to third female terminals 51 to 53 of the second power connector 5 have a frame portion 510 into which the corresponding first to third male terminals 21 to 23 are inserted, respectively, at one end. 6 has an electric wire connecting portion 511 to which the electric wires 61, 62, 63 constituting the electric connection 6 are electrically connected at the other end, and a connecting portion 512 that connects the frame portion 510 and the electric wire connecting portion 511 at the central portion in the longitudinal direction. Have. Further, in the frame portion 510 of the first to third female terminals 51 to 53, a spring member (not shown) that presses the contact portion 2a of the first to third male terminals 21 to 23 against the bottom portion of the frame portion 510 is provided. Contained.
  The frame portion 510 has a rectangular cross section. The bottom part 210 of the contact part 2 a of the first to third male terminals 21 to 23 is in electrical contact with the bottom part of the frame part 510.
  The electric wire connection portion 511 has a tubular shape that is flattened in an oval shape. The 1st thru | or 3rd female terminals 51-53 insert the core wire exposed in the edge part of the electric wires 61, 62, and 63 in the internal space of the electric wire connection part 511, and crimp the electric wire connection part 511, The electric wire 61 , 62, 63 are electrically connected.
(Configuration of the first to third current sensors 31 to 33)
The first to third current sensors 31 to 33 are GMR (Giant Magneto Resistive effect) sensors having giant magnetoresistive elements. This giant magnetoresistive element utilizes a giant magnetoresistive effect capable of obtaining a large change in electrical resistance with respect to a change in a small magnetic field. More specifically, for example, the magnetoresistive effect of the Hall element has a rate of change of electrical resistance of several percent, whereas a giant magnetoresistive element using this giant magnetoresistive effect has a rate of change of electrical resistance. It is as large as several tens of percent. The giant magnetoresistive element has a characteristic that it detects the intensity of a magnetic field in a direction along a predetermined detection axis, but does not detect a magnetic field in a direction orthogonal to the detection axis. In FIG. 4, this detection axis is indicated by an arrow on the first to third current sensors 31 to 33.
  The first current sensor 31 is disposed in the vicinity of the first female terminal 51 so as to detect the strength of the magnetic field generated by the U-phase current. The second current sensor 32 is disposed in the vicinity of the second female terminal 52 so as to detect the strength of the magnetic field generated by the V-phase current. The third current sensor 33 is arranged in the vicinity of the third female terminal 53 so as to detect the strength of the magnetic field generated by the W-phase current.
  The detection axis of the first current sensor 31 is a direction along the direction of the magnetic field generated by the U-phase current flowing in the first female terminal 51. The detection axis of the second current sensor 32 is a direction along the direction of the magnetic field generated by the V-phase current flowing through the second female terminal 52. The detection axis of the third current sensor 33 is a direction along the direction of the magnetic field generated by the W-phase current flowing through the third female terminal 53.
  The first to third current sensors 31 to 33 are mounted on the substrate 30 held by the second housing 50 of the second power connector 5. In the present embodiment, the substrate 30 is held by the outer housing 502. Further, the first to third current sensors 31 to 33 are disposed inside the second housing 50 with respect to the opening end surface 50 a of the second housing 50. Thereby, the first to third current sensors 31 to 33 are entirely accommodated in the second housing 50.
  The signal line 4 </ b> A for transmitting the output signals of the first to third current sensors 31 to 33 is composed of a plurality (six in this embodiment) of insulated wires 40, and these insulated wires 40 are placed in the outer housing 502. Arranged and connected to the first signal connector 9A.
  On the other hand, the signal line 4B led out from the second signal connector 9B is composed of a plurality (four in the present embodiment) of insulated wires 41, and these insulated wires 41 are circuit components 14 in the inverter case 10A. Are connected to the electrodes of the circuit board 11 mounted with, for example, soldering.
  The inverter device 10 provided with the first power connector 2 configured as described above has a U-phase, a V-phase, and a three-phase AC motor via the wire harness 7 connected to the second power connector 5. Supply W-phase current. The first to third current sensors 31 to 33 detect magnetic fields generated by U-phase, V-phase, and W-phase currents, and output signals from the signal line 4A, the first signal connector 9A, and the second. Are transmitted to the circuit component 14 in the inverter case 10A via the signal connector 9B and the signal line 4B.
(Operation and effect of the embodiment)
According to the embodiment described above, the following operations and effects can be obtained.
(1) Since the first signal connector 9A and the second signal connector 9B are fitted by fitting the first power connector 2 and the second power connector 5, the first There is no need to separately perform a fitting operation between the signal connector 9A and the second signal connector 9B. Thereby, it becomes possible to reduce the fitting operation | work of a connector. In other words, if the first and second signal connectors 9A and 9B are provided separately from the first and second power connectors 2 and 5, two connector fitting operations are required. According to the present embodiment, the connector can be fitted in a single operation.
(2) By arranging the first to third current sensors 31 to 33 in the second housing 50 of the second power connector 2, a current sensor that detects a magnetic field generated by the current of each phase is formed as a circuit. Compared with the case of mounting on the substrate 11, the first to third current sensors 31 to 33 can be moved away from the plurality of switching elements 12 that are noise sources. Thereby, the influence of the electromagnetic waves generated by the plurality of switching elements 12 can be suppressed, and the detection accuracy of the first to third current sensors 31 to 33 can be increased. In addition, since it is not necessary to arrange a plurality of current sensors on the circuit board 11, the circuit board 11 can be downsized and the inverter device 10 can be downsized.
(3) Since the signal line 4A and the first signal connector 9A, and the signal line 4B and the second signal connector 9B are accommodated in the outer housings 502 and 202 made of conductive metal, the outer housing 502, The influence of electromagnetic waves radiated from various devices outside 202 is suppressed. Thereby, it is possible to suppress noise from being applied to the output signals of the first to third current sensors 31 to 33, and the detection result of the current of each phase can be accurately transmitted to the circuit component 14 of the inverter device 10.
(4) Since the second signal connector 9B is disposed closer to the opening of the outer housing 202 than the first to third male terminals 21 to 23, the first to third male terminals 21 to 23 are disposed. It is possible to prevent foreign objects (such as human fingers) from touching the surface.
(5) Since the signal male terminal 90 protruding from the main body 93 of the first signal connector 9A is disposed farther from the opening of the outer housing 502 than the pair of projecting portions 502c, the signal male terminal 90 It is possible to suppress contact of a foreign object (such as a human finger) with the signal, and thus it is possible to suppress damage and deformation of the signal male terminal 90.
(6) Since the 1st thru | or 3rd current sensors 31-33 are GMR sensors which have a giant magnetoresistive element, the 1st thru | or 3rd male terminals 21-23 and the 1st thru | or 3rd female terminals 51- The magnetic field generated by the current of each phase flowing through 53 can be detected with high accuracy.
(7) Since the first to third current sensors 31 to 33 are mounted on the substrate 30 held by the second housing 50, the first to third current sensors 31 to 33 are used to detect a magnetic field. It can be easily fixed at a suitable position. Further, each insulated wire 40 of the signal line 4A transmits the output signals of the first to third current sensors 31 to 33 by connecting the core wire to the electrode formed on the substrate 30 by soldering or the like. Therefore, the signal line 4A can be easily connected.
(Summary of embodiment)
Next, the technical idea grasped from the embodiment described above will be described with reference to the reference numerals in the embodiment. However, each reference numeral in the following description does not limit the constituent elements in the claims to members or the like specifically shown in the embodiment.
[1] A first power connector (2) provided in a power device (inverter device 10) having a switching element (12), and a second power connector (2) fitted to the first power connector (2). 5), wherein the first power connector (2) is connected to output terminals (151 to 153) in a housing (inverter case 10A) of the power device (inverter device 10). The 1st connection terminal (male terminals 21-23) to which one end is connected, and the 2nd signal which transmits the output signal from the 2nd power connector (5) side to the power unit (inverter unit 10) Connector (9B), and the second power connector (5) includes a second connection terminal (female terminal 51) connected to the other end of the first connection terminal (male terminals 21 to 23). To 53) and the second The second power connector (5) is fitted to the first power connector (2) and the current sensors (31 to 33) for detecting the magnetic field generated by the current flowing through the connection terminals (female terminals 51 to 53). Thus, the second signal connector (9B) is fitted, and the output signal of the current sensor (31-33) is sent to the power supply device (inverter device) via the second signal connector (9B). 10) A connector device (1) comprising a first signal connector (9A) for transmission to 10).
[2] The first power connector (2) accommodates at least a part of each of the first connection terminals (male terminals 21 to 23) and the second signal connector (9B). A first housing (20) fixed to the body (inverter case 10A), and the second power connector (5) includes the second connection terminals (female terminals 51 to 53) and the first signal. The connector device (1) according to [1], wherein the connector device (1A) includes a second housing (50) that houses at least a part of each of the connectors (9A) and the current sensors (31 to 33).
[3] The second signal connector (9B) is disposed closer to the opening of the first housing (20) than the other end of the first connection terminal (male terminals 21 to 23). The connector device (1) according to [2].
[4] The second signal connector (9B) of the first power connector (2) has a female signal terminal (91) whose end is covered with a main body (92), and the second The housing (50) includes an inner housing (501) made of resin and an outer housing (502) made of conductive metal. The inner housing (501) includes the first signal connector (9B). A pair of projecting portions (502c) projecting toward the inner surface of the outer housing (502) are formed on both sides, and the first signal connector (9B) of the second power connector (2) is formed. The signal male terminal (90) connected to the signal female terminal (91) is exposed from the main body (93), and the signal male terminal (90) is connected to the pair of projecting portions ( 502c) than the outer Ujingu disposed away from the opening of the (502), the connector device according to [2] or [3] (1).
[5] The current sensor (31 to 33) is a GMR sensor having a giant magnetoresistive element, and a current flowing through the second connection terminal (female terminals 51 to 53) through the detection axis of the giant magnetoresistive element. The connector device (1) according to any one of [1] to [4], which is in a direction along a direction of a magnetic field generated by.
[6] A plurality of the current sensors (31 to 33) are arranged so as to detect magnetic fields generated by a plurality of phase currents output from the power supply device (inverter device 10), respectively. The connector device (1) according to any one of [1] to [5], wherein (31 to 33) are mounted on a substrate (30) held by the first housing (20).
  While the embodiments of the present invention have been described above, the embodiments described above do not limit the invention according to the claims. In addition, it should be noted that not all the combinations of features described in the embodiments are essential to the means for solving the problems of the invention.
  In addition, the present invention can be appropriately modified and implemented without departing from the spirit of the present invention. For example, in the above-described embodiment, the case where the first power connector 2 is applied to the inverter device 10 has been described. However, the present invention is not limited thereto, and the first power connector may be applied to various power devices such as a converter device having a switching element. 2 can be applied.
  Moreover, although the said embodiment demonstrated the case where a part of 1st thru | or 3rd male terminals 21-23 were accommodated in the 1st housing 20, it is not restricted to this, The 1st thru | or 3rd male is demonstrated. The entire terminals 21 to 23 may be accommodated in the first housing 20. That is, it is only necessary that at least a part of the first to third male terminals 21 to 23 is accommodated in the first housing 20.
  Moreover, although the said embodiment demonstrated the case where the 1st thru | or 3rd female terminal 51-53 was entirely accommodated in the 2nd housing 50, it is not restricted to this, The 1st thru | or 3rd female terminal A part of 51 to 53 may be accommodated in the second housing 50. That is, it is only necessary that at least a part of the first to third female terminals 51 to 53 is accommodated in the second housing 50.
  In the above embodiment, the first to third current sensors 31 to 33 are GMR sensors. However, the present invention is not limited to this. For example, the Hall IC may be the first to third current sensors 31 to 33. It may be used as
  Moreover, in the said embodiment, although the three current sensors 31-33 were provided in the 2nd power supply connector 5, you may provide any two current sensors.
  Further, the plurality of protrusions 201a may be provided closer to the opening of the outer housing 202 than the other end portions of the first to third male terminals 21 to 23. In this case, the effect which suppresses that a foreign material (human finger etc.) touches the 1st thru | or 3rd male terminals 21-23 can be acquired more reliably.
DESCRIPTION OF SYMBOLS 1 ... Connector apparatus 2 ... 1st power supply connector 5 ... 2nd power supply connectors 21-23 ... 1st thru | or 3rd male terminal (1st connection terminal)
9A ... 1st signal connector 9B ... 2nd signal connector 90 ... Signal male terminal 91 ... Signal female terminal 92 ... 2nd signal connector main body 93 ... 1st signal connector main body 10 ... Inverter device (power supply device)
10A ... Inverter case (housing)
DESCRIPTION OF SYMBOLS 12 ... Switching element 20 ... 1st housing 30 ... Board | substrates 31-33 ... 1st thru | or 3rd current sensor 50 ... 2nd housing 501 ... Inner housing 502 ... Outer housing 502c ... Projection part 51-53 ... 1st To third female terminal (second connection terminal)
151 to 153... First to third output terminals

Claims (5)

  1. A first power connector provided in a power supply device having a switching element, and a connector device having a second power connector that fits into the first power connector,
    The first power connector is
    A first connection terminal having one end connected to an output terminal in a housing of the power supply device;
    A second signal connector for transmitting an output signal from the second power connector side to the power supply device ;
    A first housing that houses at least a part of each of the first connection terminal and the second signal connector and is fixed to the housing ;
    The second power connector is
    A second connection terminal connected to the other end of the first connection terminal;
    A current sensor for detecting a magnetic field generated by a current flowing through the second connection terminal;
    When the second power connector is fitted to the first power connector, the second power connector is fitted to the second signal connector, and the output signal of the current sensor is passed through the second signal connector. A first signal connector for transmitting to the power supply ;
    A second housing for accommodating at least a part of each of the second connection terminal and the first signal connector and for accommodating the current sensor ;
    The second signal connector is disposed closer to the opening of the first housing than the other end of the first connection terminal.
    Connector device.
  2. The second signal connector of the first power connector has a female signal terminal whose end is covered by a main body,
    The second housing includes an inner housing made of a resin and an outer housing made of a conductive metal. The inner housing protrudes on both sides of the first signal connector toward the inner surface of the outer housing. A pair of projecting portions are formed,
    The first signal connector of the second power connector is provided such that a signal male terminal connected to the end of the signal female terminal is exposed from the main body,
    The signal male terminal is arranged farther from the opening of the outer housing than the pair of projecting portions.
    The connector device according to claim 1 .
  3. A first power connector provided in a power supply device having a switching element, and a connector device having a second power connector that fits into the first power connector,
    The first power connector is
    A first connection terminal having one end connected to an output terminal in a housing of the power supply device;
    A second signal connector for transmitting an output signal from the second power connector side to the power supply device;
    A first housing that houses at least a part of each of the first connection terminal and the second signal connector and is fixed to the housing;
    The second power connector is
    A second connection terminal connected to the other end of the first connection terminal;
    A current sensor for detecting a magnetic field generated by a current flowing through the second connection terminal;
    When the second power connector is fitted to the first power connector, the second power connector is fitted to the second signal connector, and the output signal of the current sensor is passed through the second signal connector. A first signal connector for transmitting to the power supply;
    A second housing for accommodating at least a part of each of the second connection terminal and the first signal connector and for accommodating the current sensor;
    The second signal connector of the first power connector has a female signal terminal whose end is covered by a main body,
    The second housing includes an inner housing made of a resin and an outer housing made of a conductive metal. The inner housing protrudes on both sides of the first signal connector toward the inner surface of the outer housing. A pair of projecting portions are formed,
    The first signal connector of the second power connector is provided such that a signal male terminal connected to the end of the signal female terminal is exposed from the main body,
    The signal male terminal is arranged farther from the opening of the outer housing than the pair of projecting portions .
    Connector apparatus.
  4. The current sensor is a GMR sensor having a giant magnetoresistive element,
    The detection axis of the giant magnetoresistive element is a direction along the direction of the magnetic field generated by the current flowing through the second connection terminal.
    The connector device according to any one of claims 1 to 3 .
  5. A plurality of the current sensors are arranged so as to detect magnetic fields generated by a plurality of phase currents output from the power supply device, and the plurality of current sensors are mounted on a substrate held by the second power connector. Implemented,
    The connector device according to any one of claims 1 to 4 .
JP2014080770A 2014-04-10 2014-04-10 Connector device Active JP6269272B2 (en)

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Application Number Priority Date Filing Date Title
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DE102016115665B3 (en) * 2016-08-24 2018-01-18 Harting Electric Gmbh & Co. Kg Connectors
JP2018200823A (en) 2017-05-29 2018-12-20 矢崎総業株式会社 Connector device

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JP2011080970A (en) * 2009-10-02 2011-04-21 Kohshin Electric Corp Detection device of multiphase current
JP5417314B2 (en) * 2010-12-27 2014-02-12 日立オートモティブシステムズ株式会社 Power converter
JP2013105714A (en) * 2011-11-16 2013-05-30 Sumitomo Electric Ind Ltd Cable with connector
JP5308544B2 (en) * 2012-01-04 2013-10-09 日本航空電子工業株式会社 Battery unit connector and battery unit including the same
JP5906488B2 (en) * 2012-02-20 2016-04-20 アルプス・グリーンデバイス株式会社 Current sensor

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