JP5074962B2 - Connector unit - Google Patents

Description

The present invention relates to a connector unit for use in the connection of electric wires.

  Many electronic devices are mounted on a vehicle as a moving body, and the electronic devices are connected to the vehicle and other electronic devices via a wire harness. The wire harness includes a plurality of electric wires and a connector attached to each end of the electric wires. The wire harness and the electronic device are connected when the connectors included in the wire harness and the electronic device are fitted, and the wire harness transmits electric power, a control signal, and the like to the electronic device.

  Such connectors, that is, connector units, include a pair of connectors that can be fitted to each other (see, for example, Patent Document 1). One connector has a first female terminal accommodating portion for accommodating the first female terminal fitting therein, and a second female terminal fitting for receiving therein a second female terminal fitting larger than the first female terminal fitting. Female terminal accommodating portions, and a hood portion provided outside the female terminal accommodating portions.

  A thicker electric wire than the first female terminal fitting is connected to the second female terminal fitting. The first and second female terminal accommodating portions are integrally formed, and one end portion of the female terminal accommodating portion facing the other connector is formed flat. And the 2nd female terminal accommodating part protrudes in the other end part apart from the other connector of these female terminal accommodating parts.

  The other connector includes a first male terminal housing portion that houses one end portion of the first male terminal fitting, and a second male terminal housing portion that houses one end portion of the second male terminal fitting inside. And a hood portion that protrudes from one end of the male terminal accommodating portion opposite to the connector. The other end portions of the first and second male terminal fittings protrude from the hood portion.

  A thicker electric wire than the first male terminal fitting is connected to the second male terminal fitting. The first and second male terminal accommodating portions are integrally formed, and the one end portions of these male terminal accommodating portions are formed flat. And the 2nd male terminal accommodating part protrudes in the other end part apart from one connector of these male terminal accommodating parts.

In the connector unit described above, the hood portion of the other connector enters the gap between the hood portion of one connector and the first and second female terminal accommodating portions and is fitted to each other. Then, the first male terminal fitting is connected to the first female terminal fitting, and the second male terminal fitting is connected to the second female terminal fitting.
JP 2004-14426 A

  When the pair of connectors of the connector unit described in Patent Document 1 described above are fitted to each other, the first and second female terminal fittings are accommodated in the same length in the hood portion of the other connector, respectively. That is, the proportion of the second female terminal fitting accommodated in the hood portion of the other connector is smaller than that of the first female terminal fitting. Furthermore, the above-mentioned other end portions of the second female terminal accommodating portion and the male terminal accommodating portion protrude from each other.

  For this reason, when this connector unit is actually mounted on an automobile or the like, the second female and male terminal fittings are likely to vibrate due to vibration during travel. Moreover, a thick heavy electric wire is attached to the second female and male terminal fittings, and the second female and male terminal fittings are more likely to vibrate. When the terminal fitting vibrates in this way, there is a problem that the contact between the terminal fittings is worn and a conduction failure occurs, or in the worst case, the terminal fitting is damaged.

The present invention aims to solve such problems. That is, the present invention aims to provide a connector unit for preventing poor conduction terminal fittings to each other due to vibration.

To achieve the solution to the purpose of the object, the invention described in claim 1, a connector unit comprising a connector, and a connector of the connector to be fitted to mating, the connector is first of the first terminal accommodating portion for accommodating the female terminal fitting therein, and a second terminal accommodating portion for accommodating therein a large second female terminal fitting than said first female terminal fitting A first housing body provided integrally therewith, and a first hood portion; the first hood portion positions the first housing body inside; and the connector of the other party than the first housing body. A first male terminal fitting connected to the first female terminal fitting and a second male terminal connected to the second female terminal fitting. The type terminal fitting is housed inside A second housing body, and a second hood portion which enters between said first housing body and said first hood part, the second housing body, the first terminal housing of the second housing body A connector unit comprising a recess provided in a recess from a surface overlapping with an end surface of the unit and positioning the second terminal accommodating portion therein.

  According to the first aspect of the present invention, the second terminal accommodating portion is provided so as to protrude toward the mating connector rather than the first terminal accommodating portion. For this reason, the portion of the second terminal accommodating portion (that is, the second female terminal fitting) accommodated in the mating connector becomes longer, and the second female die is more susceptible to the influence of the connector when it vibrates. The vibration of the terminal fitting can be prevented. Therefore, it is possible to prevent a connection failure between the terminal fittings due to vibration and to prevent the connector from vibrating. Moreover, since the part accommodated in the connector of the other party of a 2nd terminal accommodating part becomes long, the amount of restrictions becomes large and it can suppress the inclination of connectors.

Furthermore, since the second terminal accommodating portion projects toward the mating connector, the projecting amount on the side away from the mating connector of the second terminal accommodating portion, that is, the terminal insertion side can be suppressed. For this reason, the level | step difference of the 1st terminal accommodating part by the side of a terminal insertion and a 2nd terminal accommodating part becomes small, and it becomes easy to insert a terminal metal fitting, and can improve workability | operativity at the time of an assembly | attachment. Further, the mating connector includes a recess for positioning the protruding second terminal accommodating portion therein. For this reason, when the connectors are fitted to each other, the protruding portion of the second terminal accommodating portion is accommodated in the recess, and the second terminal accommodating portion is held. Therefore, it is possible to reliably prevent vibration of the second female terminal fitting that is more easily affected by the vibration of the connector, and to prevent vibration of the entire connector unit. In addition, since the second male terminal fitting protrudes from the inside of the recess, the tip of the second male terminal fitting can be further arranged on the back side, and the second male terminal fitting can be prevented from being twisted.

  Hereinafter, a connector unit according to an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 5, the connector unit 1 according to an embodiment of the present invention includes a connector 10 and a mating connector 50 that can be fitted to the connector 10.

  As shown in FIGS. 1 and 2, the connector 10 includes a first female terminal fitting (hereinafter referred to as a first female terminal) 11 and a second female terminal fitting (hereinafter referred to as a second female terminal). ) 12, a connector housing 20, a lever 30, and a packing 40.

  In the present embodiment, four first female terminals 11 are provided (FIG. 1). The first female terminal 11 is formed by bending a conductive sheet metal or the like. The 1st female terminal 11 is provided with the electric wire connection part and the electrical contact part integrally. The electric wire connecting portion includes a plurality of crimping pieces. The wire connecting portion is electrically connected to the core wire of the electric wire by the caulking piece caulking the end of the electric wire or the like. The electrical contact portion is formed in a cylindrical shape, and positions one end portion of a first male terminal 51 to be described later and holds the one end portion.

  In the present embodiment, one second female terminal 12 is provided. The second female terminal 12 is formed by bending a conductive sheet metal or the like. The second female terminal 12 is integrally provided with a wire connecting portion and an electrical contact portion. The electric wire connecting portion includes a plurality of crimping pieces. The wire connecting portion is electrically connected to the core wire of the electric wire by the caulking piece caulking the end of the electric wire or the like. The electrical contact portion is formed in a cylindrical shape, and positions one end portion of a second male terminal 52 (described later) inside and holds the one end portion.

  The second female terminal 12 described above is larger than the first female terminal 11. That is, the second female terminal 12 is longer than the first female terminal 11 and has a larger outer diameter. The second female terminal 12 has a larger current capacity than the first female terminal 11. For example, the first female terminal 11 is used for signals and is connected to a small-diameter electric wire that transmits a control signal and the like. The second female terminal 12 is used for a power source, and is connected to an electric wire that supplies electric power from a battery or the like having a larger diameter (larger cross-sectional area) than the aforementioned small-diameter electric wire.

  The connector housing 20 is made of an insulating synthetic resin or the like. As shown in FIGS. 1 and 2, the connector housing 20 integrally includes a housing main body 21 and a hood portion 22. The housing body 21 includes a first terminal accommodating portion 23 and a second terminal accommodating portion 24.

  The first terminal accommodating portion 23 has four linear hole-shaped terminal accommodating chambers 23a and is formed in a cylindrical shape. These terminal accommodating chambers 23a are provided in parallel to each other. These terminal accommodating chambers 23a accommodate the first female terminals 11 therein. A spacer 29 for preventing the first female terminal 11 from falling off is attached to the first terminal accommodating portion 23.

  The second terminal accommodating portion 24 is formed integrally with the first terminal accommodating portion 23, and is orthogonal to the direction A (shown in FIG. 2 and the like) in which the connectors 10 and 50 are in contact with (separated from or moved away from). Are provided alongside the first terminal accommodating portion 23. The second terminal accommodating portion 24 has one linear hole-shaped terminal accommodating chamber 24a and is formed in a cylindrical shape. The terminal accommodating chamber 24 a is provided in parallel with the terminal accommodating chamber 23 a of the first terminal accommodating portion 23. The terminal accommodating chamber 24a accommodates the second female terminal 12 therein.

  The second terminal accommodating portion 24 described above is formed longer than the first terminal accommodating portion 23 because the second female terminal 12 that is longer than the first female terminal 11 is accommodated therein. As shown in FIG. 2, the one end 24 b of the second terminal housing portion 24 facing the mating connector 50 protrudes from the first terminal housing portion 23 toward the mating connector 50. Further, the other end portion 24 c away from the mating connector 50 protrudes in a direction away from the mating connector 50 rather than the first terminal accommodating portion 23.

  The hood portion 22 is formed in a hood shape and positions the housing main body 21 therein. The hood part 22 is arranged with a gap from the housing body 21. As shown in FIG. 1, the hood portion 22 is provided with a lever support protrusion (not shown), a protruding pin through hole 26, a linear groove 27, and a lock arm 28.

  The lever support protrusion is formed in a columnar shape, and protrudes from the outer surface of the hood portion 22 to the outside of the hood portion 22. A pair of lever support protrusions are provided across the axis of the hood portion 22. The lever support projection rotatably supports the lever 30.

  The protruding pin through hole 26 penetrates the hood portion 22. The protruding pin through-hole 26 extends linearly along the direction A in which the connectors 10, 50 come in contact with and away from the end of the hood portion 22 facing the mating connector 50. A pair of protruding pin through holes 26 are provided across the axis of the hood portion 22.

  The linear groove 27 is provided in a concave shape from the inner surface of the hood portion 22. The straight groove 27 extends linearly along the direction A in which the connectors 10, 50 come into contact with and away from the end of the hood portion 22 facing the mating connector 50. A pair of linear grooves 27 are provided across the axis of the hood portion 22.

  The lock arm 28 is formed in a U shape and protrudes from the outer surface of the hood portion 22 as shown in FIG. The lock arm 28 is provided along the direction A in which the connectors 10 and 50 come in contact with and away from each other. One end of the lock arm 28 near the mating connector 50 is connected to the hood 22, and the other end away from the mating connector 50 is a free end. The lock arm 28 is elastically deformable so that the other end portion is displaced inward of the hood portion 22. Further, the other end portion is provided with a lock protrusion 28 a that protrudes outward from the hood portion 22.

  As shown in FIG. 1, the lever 30 includes a pair of side plate portions 31 and a connecting plate portion 32 that connects one end portions of the pair of side plate portions 31 to each other, and is formed in a U shape. The pair of side plate portions 31 are formed in a flat plate shape and are arranged in parallel with a space therebetween. The lever 30 is provided with a round hole (not shown), a cam hole 34, a temporary locking arm 35, and a lock portion 36 (FIG. 2).

  The round holes are provided through the respective side plate portions 31 and allow the lever support protrusions to pass therethrough. The lever 30 is overlapped on the outer surface of the hood portion 22 so that the pair of side plate portions 31 position the connector housing 20 therebetween, and a lever support projection is passed through the round hole. It is attached to the connector housing 20 so as to be rotatable about the support protrusion. The lever 30 is attached to the connector housing 20 so as to be rotatable between a temporary locking position (FIGS. 1 and 2) and a final locking position (FIG. 5).

  The cam holes 34 are provided through the respective side plate portions 31 and open to the outer edges of the side plate portions 31. The cam hole 34 is provided along the circumferential direction centering on the round hole, and extends from the outer edge toward the center. The cam hole 34 gradually extends in a direction approaching the round hole from the outer edge toward the center. When the lever 30 is positioned at the temporary locking position, the cam hole 34 communicates with the protruding pin through hole 26 of the connector 10.

  The temporary locking arms 35 are provided on the respective side plate portions 31 and extend along the direction A in which the connectors 10 and 50 come in contact with and separate from each other. One end of the temporary locking arm 35 near the round hole is connected to the side plate 31 and the other end away from the round hole is a free end. The temporary locking arm 35 is elastically deformable so that the other end portion is displaced outward of the lever 30. Further, the other end is provided with a protrusion that protrudes inward of the lever 30. When the lever 30 is in the temporary locking position, the temporary locking arm 35 projects the protrusion into the protruding pin through hole 26 of the connector housing 20 as shown in FIG. Lock.

  The lock portion 36 is provided on the connecting plate portion 32 as shown in FIG. When the lever 30 is positioned at the final locking position, the lock portion 36 engages with a locking projection 28a provided on the lock arm 28 of the connector housing 20 as shown in FIG. Lock in position.

  The packing 40 is made of an elastic material such as rubber and is formed in a cylindrical shape (annular shape). As shown in FIG. 2, the packing 40 is disposed in the gap between the housing main body 21 and the hood portion 22, and is disposed on the back side of the gap. When the connectors 10 and 50 are fitted to each other, the hood portion 63 of the mating connector 50 enters the gap and elastically deforms the packing 40. After that, the packing 40 is elastically restored to keep the housing main body 21 and the hood portion 63 of the mating connector 50 from being watertight, thereby preventing liquid such as water from entering the connector unit 1 (for convenience sake). In FIG. 5, the packing 40 is drawn in a shape before elastic deformation).

  The counterpart connector 50 is directly attached to the electronic device 2 mounted on an automobile or the like, for example, as shown in FIG. 3 and 4, the mating connector 50 includes a first male terminal fitting (hereinafter referred to as a first male terminal) 51 and a second male terminal fitting (hereinafter referred to as a second male terminal). Terminal 52) and a connector housing 60.

  The first male terminal 51 is made of a conductive metal material and has a tab shape. One end portion of the first male terminal 51 protrudes into a hood portion 63 (described later) of the connector housing 60, and a central portion is held in a housing body 62 (described later). The other end of the first male terminal 51 protrudes into the electronic device 2 and is electrically connected to, for example, a circuit board in the electronic device 2. Four first male terminals 51 are provided corresponding to the first female terminals 11 described above (FIG. 3). These first male terminals 51 are arranged in parallel to each other. The first male terminal 51 is electrically connected to the first female terminal 11 when the connectors 10 and 50 are fitted to each other.

  The second male terminal 52 is formed of a conductive metal material and is formed in a tab shape that is thicker than the first male terminal 51. One end of the second male terminal 52 protrudes from a recessed portion 64 (described later) into the hood portion 63, and the central portion is held in the housing body 62. The other end of the second male terminal 52 protrudes into the electronic device 2 and is electrically connected to, for example, a circuit board in the electronic device 2. One second male terminal 52 is provided corresponding to the second female terminal 12 described above. The second male terminal 52 is arranged in parallel with the first male terminal 51. The second male terminal 52 is electrically connected to the second female terminal 12 when the connectors 10 and 50 are fitted to each other.

  The second male terminal 52 described above is larger than the first male terminal 51. That is, the second male terminal 52 is longer and wider than the first male terminal 51. The second male terminal 52 has a larger current capacity than the first male terminal 51. For example, the first male terminal 51 is used for signals and is connected to the first female terminal 11 to transmit a control signal or the like to the electronic device 2. The second male terminal 52 is for power supply, and is connected to the second female terminal 12 to supply electric power from the battery or the like to the electronic device 2.

  The connector housing 60 is made of an insulating synthetic resin or the like. As shown in FIGS. 3 and 4, the connector housing 60 integrally includes a flat plate portion 61, a housing main body 62 as a third terminal accommodating portion, and a hood portion 63. The flat plate portion 61 is formed in a rectangular flat plate shape and is overlaid on the outer surface of the electronic device 2. At the four corners of the flat plate portion 61, through holes 61 a (FIG. 3) for fixing the flat plate portion 61, that is, the mating connector 50 to the electronic device 2 are provided.

  The housing main body 62 protrudes from the flat plate portion 61. The housing body 62 is formed in a rectangular block shape, and accommodates the first male terminal 51 and the second male terminal 52 therein. The housing body 62 is provided with a recess 64.

  As shown in FIG. 4, the recess 64 is provided in a recess from one surface 62 a facing the connector 10 of the housing body 62. As shown in FIG. 5, the surface 62 a of the housing main body 62 overlaps the end surface 23 b of the first terminal accommodating portion 23 when the connectors 10 and 50 are fitted to each other. The concave portion 64 is formed in a rectangular shape in plan view, and is formed in substantially the same shape as the one end portion 24 b protruding from the first terminal accommodating portion 23 of the second terminal accommodating portion 24. When the connectors 10 and 50 are fitted to each other, the concave portion 64 positions the one end 24b of the second terminal accommodating portion 24 inside.

  Further, as shown in FIG. 3, the connector housing 60 is provided with a protruding pin 65, a release protrusion 66, and a rib 67. The protruding pin 65 is formed in a columnar shape and protrudes from the outer surface of the housing main body 62 and the hood portion 63 to the outside of the housing main body 62 and the hood portion 63. A pair of protruding pins 65 are provided across the axis of the housing body 62. When the connectors 10 and 50 approach each other, the protruding pin 65 passes through the protruding pin through hole 26 of the connector 10 and then into the cam hole 34 of the lever 30.

  The release protrusion 66 protrudes from the outer surface of the housing body 62 in the outward direction of the housing body 62. The release protrusion 66 is formed in a rib shape along the direction A in which the connectors 10 and 50 come in contact with and away from each other. A pair of release protrusions 66 are provided in the vicinity of the protrusion pins 65 of the pair of protrusion pins 65.

  When the connectors 10 and 50 approach each other, the release protrusion 66 described above is passed through the protruding pin through hole 26 of the connector 10 and protrudes into the protruding pin through hole 26. Contact. Then, the release protrusion 66 elastically deforms the temporary locking arm 35 and pushes the protrusion from the protruding pin through hole 26 to release the temporary locking arm 35 from being locked to the temporary locking position. .

  The rib 67 protrudes from the outer surface of the housing body 62 in the outward direction of the housing body 62. The rib 67 is provided along the direction A in which the connectors 10 and 50 come in contact with and away from each other. The rib 67 is passed through the straight groove 27 of the connector 10.

  In order to assemble the connector unit 1 by fitting the connectors 10 and 50 having the above-described configurations together, first, in the connector 10, the pair of side plate portions 31 of the lever 30 are overlapped on the outer surface of the hood portion 22 of the connector housing 20. Then, the lever support protrusion is passed through the round hole, and the lever 30 is rotatably attached to the connector housing 20. At this time, the protrusion of the temporary locking arm 35 of the lever 30 protrudes into the protruding pin passage hole 26 of the connector housing 20 so that the lever 30 is positioned at the temporary locking position, and the cam hole 34 and the protruding pin passage hole 26 are formed. Keep in communication (FIG. 1).

  Then, the connector 10 and the mating connector 50 are made to approach each other along the direction of arrow A, and the hood portion 22 of the mating connector 50 enters the gap between the housing body 21 and the hood portion 22 of the connector 10. I will let you. Then, the protruding pin 65 of the mating connector 50 is passed through the protruding pin through hole 26 and also into the cam hole 34 of the lever 30. At this time, the release protrusion 66 of the mating connector 50 is passed through the protruding pin through hole 26 to release the lock of the lever 30 to the temporary lock position by the temporary lock arm 35.

  Thereafter, the lever 30 is rotated in the arrow B direction (FIG. 2) about the lever support protrusion. Then, the protruding pin 65 enters the back side in the cam hole 34 and the mating connector 50 gradually approaches the connector 10. Then, the lock portion 36 of the lever 30 and the lock arm 28 of the connector 10 are engaged to position the lever 30 at the final locking position.

  Then, the surface 62 a of the housing body 62 of the mating connector 50 overlaps the end surface 23 b of the first terminal housing portion 23 of the connector 10, and the second terminal of the connector 10 is accommodated in the recess 64 of the mating connector 50. One end 24b of the portion 24 is accommodated. Then, the connectors 10 and 50 are fitted to each other, the first male terminal 51 and the first female terminal 11 are electrically connected, and the second male terminal 52 and the second female terminal 12 are electrically connected. Connected (FIG. 5).

  According to the present embodiment, the one end portion 24 b of the second terminal accommodating portion 24 is provided so as to protrude toward the mating connector 50 from the first terminal accommodating portion 23. For this reason, the part accommodated in the connector 50 of the other party of the 2nd terminal accommodating part 24 (namely, 2nd female terminal 12) becomes long, and when the connector 10 vibrates, it is more susceptible to the influence. The vibration of the female terminal 12 can be prevented. Therefore, the conduction failure between the second male terminal 52 and the second female terminal 12 due to vibration can be prevented, and vibration of the connector 10 can be prevented. In addition, since the portion of the second terminal accommodating portion 24 accommodated in the mating connector 50 becomes longer, the amount of regulation increases, and the relative inclination of the connectors 10 and 50 can be suppressed.

  Furthermore, by projecting the second terminal housing portion 24 toward the mating connector 50, it is possible to suppress the projecting amount of the second terminal housing portion 24 away from the mating connector 50, that is, the terminal insertion side. it can. For this reason, the level | step difference of the 1st terminal accommodating part 23 on the terminal insertion side and the 2nd terminal accommodating part 24 becomes small, and it becomes easy to insert the 1st and 2nd female terminals 11 and 12, and the operation | work at the time of an assembly | attachment Can be improved.

  The mating connector 50 includes a recess 64 that positions the protruding one end 24b of the second terminal accommodating portion 24 inside. For this reason, when the connectors 10 and 50 are fitted to each other, the one end 24b is accommodated in the recess 64, and the second terminal accommodating portion 24 is retained. Therefore, when the connector 10 vibrates, the vibration of the second female terminal 12 that is more easily affected by the vibration can be reliably prevented, and the vibration of the entire connector unit 1 can be prevented. Moreover, since the 2nd male terminal 52 protrudes from the inside of the recessed part 64, the front-end | tip of the 2nd male terminal 52 can be distribute | arranged to the back | inner side, and the twist of the 2nd male terminal 52 can be prevented.

  In this embodiment, the 1st terminal accommodating part 23 and the 2nd terminal accommodating part 24 were provided 1 each. However, in the present invention, a plurality of these terminal accommodating portions 23 and 24 may be provided. There may be a plurality of protruding portions of the second terminal accommodating portion 24. In this case, the recessed part 64 may be provided with two or more corresponding to a some protrusion part, and one may be provided so that a some protrusion part can be accommodated.

  In the present embodiment, the concave portion 64 is provided. However, in the present invention, the concave portion 64 is not necessarily provided although the holding force of the second terminal accommodating portion 24 is reduced. For example, the entire surface 62a of the housing main body 62 may be formed on the back side. In the present embodiment, four first female terminals 11 are accommodated in the first terminal accommodating portion 23, and one second female terminal 12 is accommodated in the second terminal accommodating portion 24. The number of the female terminals 11 and 12 accommodated in the terminal accommodating portions 23 and 24 may be any number. Of course, the number of the first male terminals 51 and the second male terminals 52 accommodated in the housing main body 62 may be any number as long as the numbers correspond to the female terminals 11 and 12. In the present embodiment, the connector 10 includes the lever 30, but the lever 30 may not be included.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

It is a front view which shows the connector of the connector unit concerning one Embodiment of this invention. It is sectional drawing along the II-II line | wire in FIG. It is a front view which shows the other party's connector. FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. FIG. 4 is a cross-sectional view illustrating a state in which the connectors illustrated in FIGS. 1 and 3 are fitted to each other.

Explanation of symbols

1 Connector Unit 10 Connector 11 First Female Terminal (First Female Terminal Fitting)
12 Second female terminal (second female terminal fitting)
23 1st terminal accommodating part 24 2nd terminal accommodating part 50 Connector of the other party 51 1st male terminal (1st male terminal metal fitting)
52 Second male terminal (second male terminal fitting)
62 Housing body (third terminal accommodating portion)
62a surface 64 recess

Claims (1)

In a connector unit comprising a connector and a mating connector matable with the connector,
The connector has a first terminal accommodating portion for accommodating a first female terminal fitting therein and a second female terminal fitting for receiving a second female terminal fitting larger than the first female terminal fitting. A first housing body integrally including a terminal housing portion, and a first hood portion ;
The first hood portion is positioned inside the first housing body, and is provided to protrude toward the mating connector side than the first housing body,
The counterpart connector is
A second housing that houses therein a first male terminal fitting connected to the first female terminal fitting and a second male terminal fitting connected to the second female terminal fitting. The body,
A second hood portion that enters between the first housing body and the first hood portion,
The second housing main body is provided with a concave portion provided from a surface overlapping the end surface of the first terminal accommodating portion of the second housing main body, and has a concave portion for positioning the second terminal accommodating portion therein. Connector unit.

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