JP2006269207A - Connector and rotary electric machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector suppressing influence of a foreign matter with a simple structure, and also to provide a rotary electric machine provided with the connector. <P>SOLUTION: The body 12A of a connector 12 is provided with: a mounting opening 16A located inside of a housing 600 and connected with the mating connector 11; and an intrusion suppression part 17A provided separate an inner wall of the housing 600 and the mounting opening 16A and suppressing a water drop WR in the housing 600 from intruding the mounting opening 16A. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a connector and a rotating electrical machine, and more particularly to a connector and a rotating electrical machine having a structure that suppresses the influence of foreign matter.

  A waterproof structure that seals a sensor installation portion or the like is conventionally known.

  For example, Japanese Utility Model Laid-Open No. 6-2232 discloses an electromagnetic rotation sensor that is provided with a seal convex portion that seals rainwater and the like to prevent an output terminal from being short-circuited and prevent an erroneous signal from being output.

  Japanese Patent Application Laid-Open No. 2001-264349 discloses a rotation detection sensor that includes a rotation detector and a terminal, and a portion of the terminal connected to a lead wire is covered with a waterproof cap.

  Japanese Patent Application Laid-Open No. 2000-217227 discloses an electric connection box in which an alignment correction plate is interposed between a wiring board arranged vertically and a board connector assembled to the wiring board. Here, on the upper surface of the alignment correction plate, the left and right sides of the upper surface are inclined downward relative to the central portion. In the above publication, it is assumed that the water that has flowed down along the wiring board by the installation of the inclined portion flows down to the left and right sides along the inclination on the upper surface of the alignment correction plate.

  Further, in Japanese Patent Laid-Open No. 7-29631, an inclined portion is provided on the ceiling surface of the housing for the charging connector so that moisture adhering to the surface of the housing is transmitted to guide the water collecting groove. A drainage structure is disclosed.

  Japanese Patent Application Laid-Open No. 2000-50560 discloses a motor breather having a barrier that prevents entry of high-pressure water from the outside.

In JP-A-9-48250, there is provided a communication hole for communicating a space formed in the vicinity of the mating surface between the motor case and the transmission case and the air breather chamber. There has been disclosed an air breather mechanism capable of reducing the condensing accompanying it and reducing the burden on the motor against heat and air.
Japanese Utility Model Publication No. 6-2232 JP 2001-264349 A JP 2000-217227 A JP 7-29631 A JP 2000-50560 A JP-A-9-48250

  However, even if a seal portion as disclosed in Patent Documents 1 and 2 is provided, foreign matter such as moisture may enter the housing. As a result, the performance of the element connected to the connector may be affected.

  In the above Patent Documents 3 to 6, a configuration that can sufficiently solve the above problem is not disclosed. For example, Patent Document 3 does not disclose a waterproof structure that separates a “housing inner wall” and a “connector connection portion” through which foreign substances are transmitted.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a connector capable of suppressing the influence of foreign matter with a simple structure, and a rotating electrical machine including the connector. There is.

  A connector according to the present invention is a connector attached to a housing, and is provided inside the housing so as to separate an attachment portion to which another connector is connected and an inner wall of the housing from the attachment portion. An intrusion suppression unit that suppresses intrusion of the foreign matter into the attachment unit.

  According to the said structure, it can suppress that a foreign material penetrate | invades in the attaching part of a connector. Therefore, it is suppressed that the foreign material in a housing affects the performance of an element.

  In the connector, it is preferable that the intrusion suppression portion can be disposed on the upper side with respect to the attachment portion.

  Thereby, it can suppress that the foreign material which descends along an inner wall of a housing penetrate | invades into the attachment part of a connector.

  In the connector, it is preferable that the position of the attachment portion can be changed in a state where the connector is attached to the housing.

  According to the above configuration, since the connector can be attached to the housing without considering the position of the intrusion suppressing portion, the attachment of the connector to the housing is facilitated.

  In the connector described above, preferably, the variable position of the attachment portion is determined by the first position where the intrusion suppression portion suppresses the entry of foreign matter into the attachment portion and the connection of another connector to the attachment portion from the first position. A second position that also facilitates.

  According to the said structure, a connector and another connector can be connected in the state in which an attachment part exists in a 2nd position, and an attachment suppression part can be moved to a 1st position after that, and an intrusion suppression part can be functioned. Therefore, the connection between the connector and another connector is facilitated.

  Preferably, the connector further includes a display unit that is provided outside the housing and indicates the position of the intrusion suppression unit.

  According to the above configuration, it is possible to confirm whether the intrusion suppression unit is in an appropriate position from the outside of the housing.

  In the above connector, as one example, the intrusion suppression unit includes a main body of the connector. As another example, the intrusion suppression unit includes a groove formed in the main body of the connector.

  According to the said structure, the penetration | invasion suppression part which suppresses the penetration | invasion of the foreign material to the attachment part can be comprised, without providing a separate part.

  In the connector, as still another example, a cap member that covers the attachment portion is further provided, and the intrusion suppression portion includes the cap member.

  According to the above configuration, it is possible to configure an intrusion suppression unit that suppresses the intrusion of foreign matter into the attachment unit by the cap member.

  The rotating electricity according to the present invention includes a case as the housing, an element provided in the case, a wiring connected to the element, and the connector for connecting the wiring to another wiring.

  By using the connector in which the influence of foreign matter is suppressed, the performance of the rotating electrical machine is improved.

  According to the present invention, it is possible to prevent foreign matter such as moisture transmitted through the inner wall of the housing from entering the connector connecting portion.

  Embodiments of a connector and rotating electricity according to the present invention will be described below. Note that the same or corresponding portions are denoted by the same reference numerals, and the description thereof may not be repeated.

  In the following, the “resolver” as an example of the “element” connected to the connector portion will be mainly described. However, the “element” to which the connector according to the present invention is connected is not limited to the “resolver”. The same idea can be applied to these elements. For example, if it is a sensor, the idea of the present invention can be applied to a temperature sensor, an oil level sensor, a water level sensor, and the like.

  FIG. 1 is a diagram schematically showing an example of the structure of a drive unit including a connector according to Embodiments 1 to 5 of the present invention. In the example shown in FIG. 1, the drive unit 1 is a drive unit mounted on a hybrid vehicle, and includes a motor generator 100, a resolver 200, a speed reduction mechanism 300, a differential mechanism 400, a drive shaft receiving portion 500, A housing 600 and a terminal block 700 are included.

  The motor generator 100 is a rotating electric machine having a function as an electric motor or a generator. The motor generator 100 is a rotary shaft 110 that is rotatably attached to the housing 200 via a bearing 120, a rotor 130 that is attached to the rotary shaft 110, and a stator. 140.

  The rotor 130 includes a rotor core configured by laminating plate-like magnetic bodies such as iron or an iron alloy, and a permanent magnet embedded in the rotor core. For example, the permanent magnets are arranged at substantially equal intervals in the vicinity of the outer periphery of the rotor core.

  The stator 140 includes a ring-shaped stator core 141, a stator coil 142 wound around the stator core 141, and a bus bar 143 connected to the stator coil 142. Bus bar 143 is connected to PCU (Power Control Unit) 800 via terminal block 700 provided in housing 600 and power supply cable 800A. PCU 800 is connected to battery 900 via power supply cable 900A. Thereby, battery 900 and stator coil 142 are electrically connected.

  The stator core 141 is configured by laminating plate-like magnetic bodies such as iron or iron alloy. A plurality of teeth portions (not shown) and slot portions (not shown) as recesses formed between the teeth portions are formed on the inner peripheral surface of the stator core 141. The slot portion is provided so as to open to the inner peripheral side of the stator core 141.

  Stator coil 142 including three winding phases, U-phase, V-phase, and W-phase, is wound around the tooth portion so as to fit into the slot portion. The U phase, V phase, and W phase of the stator coil 142 are wound so as to deviate from each other on the circumference. Bus bar 143 includes a U phase, a V phase, and a W phase corresponding to the U phase, V phase, and W phase of stator coil 142, respectively.

  The power supply cable 800A is a three-phase cable including a U-phase cable, a V-phase cable, and a W-phase cable. U-phase, V-phase, and W-phase of bus bar 143 are connected to U-phase cable, V-phase cable, and W-phase cable in power supply cable 800A, respectively.

  The power output from the motor generator 100 is transmitted from the speed reduction mechanism 300 to the drive shaft receiving portion 500 via the differential mechanism 400. The driving force transmitted to the drive shaft receiving portion 500 is transmitted as a rotational force to a wheel (not shown) via a drive shaft (not shown), thereby causing the vehicle to travel.

  On the other hand, during regenerative braking of the hybrid vehicle, the wheels are rotated by the inertial force of the vehicle body. Motor generator 100 is driven via drive shaft receiving portion 500, differential mechanism 400 and reduction mechanism 300 by the rotational force from the wheels. At this time, the motor generator 100 operates as a generator. The electric power generated by motor generator 100 is stored in battery 900 via an inverter in PCU 800.

  The resolver 200 includes a resolver rotor 210 and a resolver stator 220. Resolver rotor 210 is connected to rotating shaft 110 of motor generator 100. The resolver stator 220 includes a resolver stator core 221 and a resolver stator coil 222 wound around the core. The resolver 200 detects the rotation angle of the rotor 130 of the motor generator 100. The detected rotation angle is transmitted to the PCU 800 via the connector unit 10. PCU 800 generates a drive signal for driving motor generator 100 using the detected rotation angle of rotor 130 and a torque command value from an external ECU (Electrical Control Unit), and uses the generated drive signal as a motor. Output to the generator 100.

  FIG. 2 is a circuit diagram showing a configuration of a main part of PCU 800. Referring to FIG. 2, PCU 800 includes a converter 810, an inverter 820, a control device 830, capacitors C1 and C2, power supply lines PL1 to PL3, and output lines 840U, 840V, and 840W. Converter 810 is connected between battery 900 and inverter 820, and inverter 820 is connected to motor generator 100 via output lines 840U, 840V, and 840W.

  Battery 900 connected to converter 810 is, for example, a secondary battery such as nickel metal hydride or lithium ion. Battery 900 supplies the generated DC voltage to converter 810 and is charged by the DC voltage received from converter 810.

  Converter 810 includes power transistors Q1 and Q2, diodes D1 and D2, and a reactor L. Power transistors Q1, Q2 are connected in series between power supply lines PL2, PL3, and receive a control signal from control device 830 as a base. Diodes D1 and D2 are connected between the collector and emitter of power transistors Q1 and Q2, respectively, so that current flows from the emitter side to the collector side of power transistors Q1 and Q2. Reactor L has one end connected to power supply line PL1 connected to the positive electrode of battery 900, and the other end connected to a connection point of power transistors Q1 and Q2.

  Converter 810 boosts the DC voltage received from battery 900 using reactor L, and supplies the boosted boosted voltage to power supply line PL2. Converter 810 steps down the DC voltage received from inverter 820 and charges battery 900.

  Inverter 820 includes a U-phase arm 850U, a V-phase arm 850V, and a W-phase arm 850W. Each phase arm is connected in parallel between power supply lines PL2 and PL3. U-phase arm 850U includes power transistors Q3 and Q4 connected in series, V-phase arm 850V includes power transistors Q5 and Q6 connected in series, and W-phase arm 850W includes power transistors connected in series. It consists of transistors Q7 and Q8. Diodes D3 to D8 are respectively connected between the collector and emitter of power transistors Q3 to Q8 so that current flows from the emitter side to the collector side of power transistors Q3 to Q8. A connection point of each power transistor in each phase arm is connected to an anti-neutral point side of each phase coil of motor generator 100 via output lines 840U, 840V, and 840W.

  Inverter 820 converts a DC voltage received from power supply line PL <b> 2 into an AC voltage based on a control signal from control device 830, and outputs the AC voltage to motor generator 100. Inverter 820 rectifies the AC voltage generated by motor generator 100 into a DC voltage and supplies it to power line PL2.

  Capacitor C1 is connected between power supply lines PL1 and PL3, and smoothes the voltage level of power supply line PL1. Capacitor C2 is connected between power supply lines PL2 and PL3, and smoothes the voltage level of power supply line PL2.

  Resolver 200 detects the rotation angle of the rotor of motor generator 100 and outputs it to control device 830. Here, the output to the control device 830 is performed via the wirings 13 and 14 and the connector unit 10.

  Control device 830 calculates each phase coil voltage of motor generator 100 based on the rotation angle of the rotor of motor generator 100, the motor torque command value, each phase current value of motor generator 100, and the input voltage of inverter 820, Based on the calculation result, a PWM (Pulse Width Modulation) signal for turning on / off the power transistors Q3 to Q8 is generated and output to the inverter 820.

  Control device 830 calculates the duty ratio of power transistors Q1 and Q2 for optimizing the input voltage of inverter 820 based on the motor torque command value and the motor rotation speed described above, and power based on the calculation result. A PWM signal for turning on / off the transistors Q 1 and Q 2 is generated and output to the converter 810.

  Further, control device 830 controls the switching operation of power transistors Q <b> 1 to Q <b> 8 in converter 810 and inverter 820 in order to charge battery 900 by converting AC power generated by motor generator 100 to DC power.

  In PCU 800, converter 810 boosts a DC voltage received from battery 900 based on a control signal from control device 830, and supplies the boosted voltage to power supply line PL2. Inverter 820 receives the DC voltage smoothed by capacitor C <b> 2 from power supply line PL <b> 2, converts the received DC voltage into an AC voltage, and outputs it to motor generator 100.

  Inverter 820 converts the AC voltage generated by the regenerative operation of motor generator 100 into a DC voltage and outputs the DC voltage to power supply line PL2. Converter 810 receives the DC voltage smoothed by capacitor C2 from power supply line PL2, and steps down the received DC voltage to charge battery 900.

  FIG. 3 is a diagram schematically illustrating an example of a main configuration of the resolver 200.

  Referring to FIG. 3, resolver rotor 210 in resolver 200 has an elliptical shape. The resolver stator coil has an excitation signal winding 222A and detection signal windings 222B and 222C. Here, the detection signal windings 222B and 222C are arranged so as to be electrically deviated from each other by 90 °. As resolver rotor 210 rotates with the rotating shaft of the motor generator, the gaps (for example, L1 and L2 in FIG. 3) between resolver rotor 210 and detection signal windings 222B and 222C change. Here, when an alternating current is supplied to the excitation signal winding 222A, outputs corresponding to the rotational position of the resolver rotor 210 are generated in the detection signal windings 222B and 222C. The rotational position (for example, θ in FIG. 3) can be detected.

  As shown in FIG. 3, the connector unit 10 includes a connector 11 on the wiring 13 side and a connector 12 on the wiring 14 side. By connecting the terminals of the connectors 11 and 12, the wirings 13 and 14 are connected, and the resolver 200 and the control device 830 are electrically connected. Here, the wirings 13 and 14 are wirings having a plurality of phases (six phases in the example shown in FIG. 3), and the connector unit 10 has a plurality of terminals corresponding to the respective phases in the plurality of phases.

  By the way, rain water may enter the inside of the housing 600 from a breather mechanism or the like, or condensed water may be generated in the housing 600 due to a temperature change. Further, impurities such as a snow melting agent containing a relatively large amount of ionic components may enter the housing 600 along with moisture. When these penetrate into the connector portion 10, the conductivity increases between the plurality of terminals described above. If the conductivity increases excessively, a short circuit between phases may occur in the resolver 200. Here, when moisture having a high ion concentration including a snow melting agent or the like enters, the conductivity immediately increases. Further, even when moisture having a low ion concentration such as condensed water enters, the conductivity gradually increases due to precipitation of ions from the terminal metal. On the other hand, in Embodiments 1 to 5 described below, short-circuiting between terminals is suppressed by taking measures described later.

(Embodiment 1)
FIG. 4 is a diagram showing a connection structure using the connector according to the first embodiment. In FIG. 4, the arrow G indicates the direction of gravity, the arrow DR1 indicates the inner direction of the housing 600, and the arrow DR2 indicates the outer direction of the housing 600.

  The connector unit 10 shown in FIG. 4 is provided on the wirings 13 and 14 that connect the resolver 200 as an “element” in the housing 600 and the PCU 800 provided outside the housing 600. The connector unit 10 includes a connector 11 on the wiring 13 side and a connector 12 on the wiring 14 side. The connectors 11 and 12 have connector main bodies 11A and 12A and connection terminals (not shown in FIG. 4), respectively.

  Connector body 12 </ b> A is attached to the opening of housing 600 and passes through housing 600. An O-ring 15 is provided on the outer periphery of the connector body 12A. Thereby, the opening part of the housing 600 is sealed. The connector body 12 </ b> A has a mounting opening 16 </ b> A inside the housing 600. The connector main body 11A is fitted into the mounting opening 16A.

  There may be a water drop WR generated by condensation or entering from the outside in the housing 600. The water droplet WR descends in the direction of the arrow DR0 while traveling along the inner wall of the housing 600 according to gravity. As a result, the water droplet WR reaches the vicinity of the connector unit 10.

  When the water droplet WR enters the mounting opening 16A, the connector portion 10 is affected by the water droplet WR. Therefore, it is important to lower the water droplet WR while suppressing the water droplet WR from entering the attachment port 16.

  On the other hand, the connector 12 according to the present embodiment has an intrusion suppression portion 17A that suppresses intrusion of foreign matters such as moisture into the attachment port 16A at the upper part of the attachment port 16A. Thereby, the influence on the connector part 10 by the water droplet WR is suppressed.

  The intrusion suppression portion 17A is configured by the connector main body 12A and is disposed so as to be positioned above the attachment port 16A. Thereby, it is possible to prevent moisture from entering the mounting port 16A with a simple structure without providing a separate cap member or seal member. Here, it is possible to suppress the water droplet WR descending along the inner wall of the housing 600 from entering the attachment port 16A. As a result, the moisture in the housing 600 is suppressed from affecting the performance of the resolver 200.

  The connector 12 is rotatable in the direction of the arrow DR3 while being attached to the housing 600. Therefore, it is possible to change the position and direction of the attachment port 16 </ b> A with the connector 12 attached to the housing 600. As a result, since the connector 12 can be attached to the housing 600 without considering the positions of the attachment port 16A and the intrusion suppressing portion 17A, the attachment of the connector 12 to the housing 600 is facilitated.

  In the present embodiment, after the connector 12 is attached to the housing 600, the connectors 11 and 12 are connected in a state where the attachment port 16A opens upward. As a result, the connectors 11 and 12 can be connected with the connectors 11 and 12 viewed from above, so that the connectors 11 and 12 can be easily connected. Thereafter, the connector 12 is rotated so that the attachment port 16A faces downward. Thereby, the intrusion suppression part 17A can be functioned.

  Here, the position where the attachment port 16A opens downward is the “first position”, and the position where the attachment port 16A opens upward is the “second position”.

  The connector 12 is provided with a display unit 18 that is provided outside the housing 600 and indicates the rotational position of the connector 12. Thereby, even after the housing 600 is sealed, the rotational position of the intrusion suppressing portion 17A can be confirmed from the outside of the housing 600.

  FIG. 5 is a view showing an assembling process of the connector portion 10 to the housing 600. Referring to FIG. 5, as described above, after connector main body 12 </ b> A provided with O-ring 15 is inserted into the opening of housing 600, mating connector main body 11 </ b> A is fitted from the inside of housing 600. .

  FIG. 6 is a diagram showing details of the connection terminals in the connector unit 10. The effect when the water droplet WR enters the attachment port 16A will be described with reference to FIG.

  Referring to FIG. 6, connector 11 has a plurality of terminals 11B and 11C, and connector 12 has a plurality of terminals 12B and 12C. The connectors 11 and 12 are electrically connected by inserting the pin-shaped terminals 12B and 12C into the concave terminals 11B and 11C.

  The terminals 11B and 12B and the terminals 11C and 12C are terminals corresponding to different phases in the wirings 13 and 14 that are multi-phase cables, respectively. That is, the terminals 11B and 12B are terminals corresponding to one phase in the wirings 13 and 14, and the terminals 11C and 12C are terminals corresponding to the other phases in the wirings 13 and 14. Therefore, when the water droplet WR enters the attachment port 16A and the terminals 11B and 12B and the terminals 11C and 12C are electrically connected, a short circuit between the phases occurs, and the function of the resolver 200 is inhibited. On the other hand, by providing the intrusion suppressing portion 17A, the intrusion of the water droplet WR is suppressed and a short circuit between the phases is prevented.

  The above contents are summarized as follows. That is, the connector 12 according to the present embodiment is located inside the housing 600 and is attached to the attachment port 16A as an “attachment portion” to which the connector 11 as “another connector” is connected, and to the inner wall of the housing 600. An intrusion suppression portion 17A that is provided so as to be separated from the port 16A and suppresses the water droplet WR in the housing 600 from entering the mounting port 16A.

  Motor generator 100 according to the present embodiment includes housing 600 as a “case” in which rotor 130 and stator 140 are provided, resolver 200 provided in housing 600, and wiring 13 connected to resolver 200. The connector section 10 connects the wiring 13 and the wiring 14 as “other wiring”.

  In the connector part 10, the short circuit between phases in the resolver 200 is suppressed by using the connector 12 which is not easily affected by the water droplet WR. As a result, deterioration of the function of the resolver 200 due to moisture is suppressed, and the performance of the motor generator 100 is improved.

(Embodiment 2)
FIG. 7 is a view showing a connection structure using a connector according to the second embodiment. In the connector portion 10 shown in FIG. 7, a groove portion 17B is formed in the connector main body 12A. The present embodiment is characterized in that the groove portion 17B constitutes an “invasion suppressing portion”.

  Referring to FIG. 7, groove portion 17 </ b> B is formed on the outer periphery of connector body 12 </ b> A so as to follow the inner wall of housing 600. The insertion part 16B to the connector 11 in the connector 12 is provided inside the housing 600 with respect to the groove part 17B. The insertion portion 16B constitutes an “attachment portion” to which the connector 11 as “another connector” is connected.

  The water droplet WR descending in the direction of the arrow DR0 along the inner wall of the housing 600 flows into the groove portion 17B, flows through the groove portion 17B along the outer periphery of the connector body 12A, and then flows down below the connector portion 10. Therefore, the water droplet WR is prevented from entering the joint portion of the connectors 11 and 12.

  As described above, in the present embodiment as well, in the same manner as in the first embodiment, moisture enters the joints of the connectors 11 and 12 with a simple structure without providing a separate cap member or seal member. Can be suppressed.

(Embodiment 3)
FIG. 8 is a view showing a joining structure using a connector according to the third embodiment. In the connector portion 10 shown in FIG. 8, a rubber cap 17 </ b> C as a “cap member” that covers the joint surface 16 </ b> C of the connectors 11 and 12 is provided. The present embodiment is characterized in that the rubber cap 17C constitutes an “invasion suppressing portion”. 16 C of joining surfaces comprise the "attachment part" to which the connector 11 as "another connector" is connected.

  The rubber cap 17C is provided so as to cover the side surface of the connector main body 12A from above the joining surface 16C. Thereby, the rubber cap 17C can prevent the water droplet WR from entering the joining surface 16C and seal the opening of the housing 600. That is, the rubber cap 17C also serves as a seal material (O-ring 15 in the first and second embodiments) disposed on the outer periphery of the connector main body 12A.

  The water droplet WR descending in the direction of the arrow DR0 along the inner wall of the housing 600 flows down below the connector portion 10 along the outer periphery of the rubber cap 17C. Accordingly, the water droplet WR is prevented from entering the joint surface 16C of the connectors 11 and 12.

  FIG. 9 is a plan view of the rubber cap 17C viewed from the direction of the arrow IX in FIG. Referring to FIG. 9, the rubber cap 17C is provided with a cut portion CUT. Thus, with the connector 12 and the rubber cap 17 </ b> C attached to the housing 600, the connector 11 and the wiring 13 can be put inside the rubber cap 17 </ b> C and the connectors 11 and 12 can be connected.

  When actually connecting the connectors 11 and 12, first, the notch CUT is directed upward, and after the connectors 11 and 12 are connected, the connector 12 is rotated in the direction of the arrow DR3 to direct the notch CUT downward. . As a result, the connectors 11 and 12 can be connected with the connectors 11 and 12 viewed from above, and after the connectors 11 and 12 are connected, the rubber cap 17C can function as an “intrusion suppressing portion”. A display unit 18 that indicates the rotational position of the connector 12 is provided outside the housing 600. Thereby, even after the housing 600 is sealed, the rotational position of the cut portion CUT can be confirmed from the outside of the housing 600.

  As described above, also in the present embodiment, it is possible to prevent moisture from entering the joints of the connectors 11 and 12 as in the first and second embodiments.

(Embodiment 4)
FIG. 10 is a diagram illustrating a connection structure using a connector according to the fourth embodiment. Referring to FIG. 10, in the present embodiment, a passage 19 reaching from the attachment port 16 </ b> D of connector 12 to the inner wall of housing 600 is provided. This embodiment is characterized in that it has a “drainage channel” that quickly drains water even when a water droplet WR enters the joint between the connectors 11 and 12.

  The passage 19 is formed by providing a hole in the connector main body 12A and the housing 600. Therefore, it is necessary to match the opening position of the hole formed in the connector main body 12 </ b> A with the opening position of the hole formed in the housing 600. The opening position is adjusted by rotating the connector 12 in the direction of the arrow DR3. A display unit 18 that indicates the rotational position of the connector 12 is provided outside the housing 600. Thereby, even after the housing 600 is sealed, the opening positions of the holes can be adjusted from the outside of the housing 600.

  As described above, in the present embodiment, moisture that has entered the joint portion of the connector can be quickly discharged.

(Embodiment 5)
FIG. 11 is a diagram showing a connection structure using a connector according to the fifth embodiment. FIG. 12 is a plan view of the connector viewed from the direction of arrow XII in FIG. The joining structure shown in FIGS. 11 and 12 has a groove portion 20 as a “drainage channel” that quickly drains moisture that has entered the attachment port 16E of the connector 12. The present embodiment is characterized in that the “drainage channel” is provided by processing the connector main body 12A.

  In the present embodiment, it is not necessary to provide a hole in the housing 600 in order to form the “drainage channel” as in the fourth embodiment. Moreover, it is not necessary to match the opening positions of the holes formed in the connector main body 12A and the housing 600, respectively. However, it is necessary to position the groove 20 on the lower side with respect to the joint portion of the connectors 11 and 12. The position of the groove 20 is adjusted by rotating the connector 12 attached to the housing 600 in the direction of the arrow DR3. A display unit 18 that indicates the rotational position of the connector 12 is provided outside the housing 600. Thereby, even after the housing 600 is sealed, the position of the groove 20 can be adjusted from the outside of the housing 600.

  The groove portion 20 is provided with an inclined portion 21. Thereby, moisture becomes easy to flow through the groove 20. As a result, the discharge of moisture from the joint portion of the connectors 11 and 12 is promoted.

  As described above, in the present embodiment, moisture that has entered the joint portion of the connector can be quickly discharged.

  Although the embodiments of the present invention have been described above, it is planned from the beginning to appropriately combine the characteristic portions of the respective embodiments described above. The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a figure which shows roughly an example of the structure of the drive unit containing the connector which concerns on Embodiment 1-5 of this invention. It is a circuit diagram which shows the structure of the principal part of PCU shown by FIG. It is the figure which showed typically an example of the main structures of the resolver shown by FIG. 1, FIG. It is the figure which showed the connection structure by the connector which concerns on Embodiment 1 of this invention. It is the figure which showed the assembly | attachment process to the housing of the connection structure shown by FIG. It is the figure which showed the detail of the connection terminal in the connection structure shown by FIG. It is the figure which showed the connection structure by the connector which concerns on Embodiment 2 of this invention. It is the figure which showed the connection structure by the connector which concerns on Embodiment 3 of this invention. It is a top view of the cap member seen from the direction of arrow IX in FIG. It is the figure which showed the connection structure by the connector which concerns on Embodiment 4 of this invention. It is the figure which showed the connection structure by the connector which concerns on Embodiment 5 of this invention. It is a top view of the connector seen from the direction of arrow XII in FIG.

Explanation of symbols

  1 drive unit, 10 connector section, 11, 12 connector, 11A, 11B connector body, 11B, 11C, 12B, 12C terminal, 13, 14 wiring, 15 O-ring, 16A, 16D, 16E mounting port, 16B insertion section, 16C Joint surface, 17A Intrusion suppression part, 17B Groove part, 17C Rubber cap, 18 Display part, 19 Passage, 20 Groove part, 21 Inclined part, 100 Motor generator, 110 Rotating shaft, 120 Bearing, 130 Rotor, 140 Stator, 141 Stator core, 142 Stator coil, 143 bus bar, 200 resolver, 210 resolver rotor, 220 resolver stator, 221 resolver stator core, 222 resolver stator coil, 222A excitation signal winding, 222B, 222C detection signal winding 300, speed reduction mechanism, 400 differential mechanism, 500 drive shaft receiving part, 600 housing, 700 terminal block, 800 PCU, 800A, 900A power supply cable, 810 converter, 820 inverter, 830 control device, 840U, 840V, 840W output line, 850U U-phase arm, 850V V-phase arm, 850W W-phase arm, 900 battery, C1, C2 capacitor, CUT notch, D1-D8 diode, L reactor, PL1, PL2, PL3 power line, Q1-Q8 power transistor, WR Water drops.

Claims (9)

A connector attached to the housing,
A mounting portion located inside the housing and connected to another connector;
A connector provided with an intrusion suppression portion that is provided so as to separate the inner wall of the housing and the mounting portion and suppresses foreign matter in the housing from entering the mounting portion.   The connector according to claim 1, wherein the invasion suppressing portion can be positioned on the upper side with respect to the attachment portion.   The connector according to claim 1, wherein the position of the attachment portion can be changed in a state of being attached to the housing.   The variable position of the attachment portion is different from the first position in that the invasion suppression portion connects the other connector to the attachment portion, and the first position in which the intrusion suppression portion suppresses the entry of foreign matter into the attachment portion. 4. The connector of claim 3, including a second location that facilitates.   The connector according to any one of claims 1 to 4, further comprising a display portion that is provided outside the housing and indicates a position of the intrusion suppression portion.   The connector according to claim 1, wherein the intrusion suppression unit includes a main body of the connector.   The connector according to any one of claims 1 to 6, wherein the intrusion suppressing portion includes a groove formed in a main body of the connector. A cap member that covers the mounting portion;
The connector according to claim 1, wherein the intrusion suppression unit includes the cap member. A case as the housing;
An element provided in the case;
Wiring connected to the element;
The rotary electric machine provided with the connector in any one of Claims 1-8 which connects the said wiring and other wiring.

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