JP7444739B2 - connector - Google Patents

Description

The present invention relates to a connector that includes a plurality of terminals, a housing that accommodates the plurality of terminals, and a cover that is attached to the housing.

Conventionally, a connector has been proposed that includes a housing having a plurality of terminal accommodating chambers and a cover attached to the housing so as to cover the terminal accommodating chambers and the electric wires extending from the terminal accommodating chambers (for example, see Patent Document 1). ). In this conventional connector, the cover primarily functions as a guide for guiding the wire in a desired direction from the housing.

Japanese Patent Application Publication No. 2018-152265

The above-mentioned type of connector generally has a cylindrical (box-shaped) terminal fitting crimped to the end of an electric wire that is inserted into a terminal housing chamber, and each of the plurality of terminal housing chambers is separated from each other by a partition wall. This prevents unintentional short circuits.

On the other hand, when connecting terminal fittings by fastening bolts to bus bars (terminals) fixed to the housing by insert molding etc., unlike the conventional connectors mentioned above, there is no space for the bolts themselves to be accommodated and the fastening work is required. It is necessary to secure a work space for this purpose. Therefore, it is difficult to provide terminal accommodating chambers separated by partition walls as in conventional connectors. However, even in the case of a connector in which a terminal fitting is fastened to a terminal with a bolt, it is desirable to appropriately electrically isolate the terminals from each other, as in the case of conventional connectors.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a connector that can suppress unintentional short circuits between terminals even when the terminal fittings are fastened to the terminals with bolts. It's about doing.

In order to achieve the above-mentioned object, the connector according to the present invention has the following features [1] to [3].
[1]
A connector comprising a plurality of terminals, a housing holding the plurality of terminals, and a cover attached to the housing,
Each of the plurality of terminals is
It has a fastened part to which a terminal fitting can be connected by fastening with a bolt,
Each of the fastened parts is
accommodated in each of a plurality of accommodation chambers defined between the housing and the cover,
A partition wall of the accommodation chamber located between one of the fastened parts and the other fastened part,
At least a part of the partition wall has a liquid-tight part formed by contact between a rib of one of the housing and the cover and a receiving part of the other;
The rib is
The tip surface of the rib is pressed against the receiving part in a state where it is in surface contact with the receiving part,
Must be a connector.
[2]
In the connector described in [1] above,
The rib is
A plate-shaped part having the distal end surface and a proximal end surface different from the distal end surface, and the housing and the cover in which the predetermined location between the distal end surface and the proximal end surface of the plate-shaped part and the rib are provided. a connecting portion connecting the one to the other;
When the tip surface is pressed against the receiving part,
The connecting portion deforms in a direction away from the receiving portion, and the proximal end surface is pressed against the one of the housing and the cover on which the rib is provided.
Must be a connector.
[3]
In the connector described in [2] above,
The plate-shaped portion of the rib is
having a groove recessed in the thickness direction of the plate portion at a location away from the tip surface;
Must be a connector.

According to the connector having the configuration [1] above, by attaching the cover to the housing, a plurality of storage chambers are defined between the housing and the cover. A fastened portion of the terminal (ie, a fastened location between the terminal and the bolt) is stored in each of the plurality of storage chambers. Further, a rib of one of the housing and the cover and a receiving part of the other are in contact with a partition wall of the storage chamber located between one of the fastened parts of the terminal and the other fastened part of the terminal. A liquid tight part is provided. This liquid-tight part has a structure (so-called labyrinth structure) that lengthens the entry path (so-called creepage distance) for liquids such as water and oil that try to pass through the partition wall, and exhibits an excellent liquid-tight function. As a result, even if the connector is used in a normal usage environment, it will not be used in harsh environments where the connector is exposed to water or oil (for example, in transmission lubricating oil). However, the terminals can be electrically isolated from each other.

Further, when the cover is attached to the housing, the tip end surface of the rib is pressed against the receiving part in surface contact, thereby forming a liquid-tight part. Therefore, even if there are large manufacturing tolerances (so-called manufacturing variations) in the dimensions of the ribs and receivers, or if there is misalignment between the housing and the cover (so-called rattling), the ribs and receivers will be It is possible to suppress the formation of an excessively large gap between the two. Therefore, even if the connector with this configuration has a configuration in which the terminal fittings are fastened to the terminals with bolts, it is possible to suppress unintended short circuits between the terminals.

In addition, the above-mentioned "liquid-tight part" makes it easier for liquid to move from one storage chamber to the other compared to cases where there is no such liquid-tight part (for example, when the housing and cover are simply butted together). It is sufficient to have the function of suppressing (intrusion), and it is not necessarily necessary to have the function of completely preventing such movement of liquid. In other words, the rib and the receiving portion described above may be arranged so as to be in complete contact with each other, or may be arranged at a sufficiently small interval to suppress such movement of liquid. They may be placed in close contact with each other in some parts and spaced apart in other parts.

According to the connector having the configuration [2] above, when the housing is attached to the cover, the connecting portion extending from the distal end surface and the proximal end surface of the plate-like portion constituting the rib deforms in a direction away from the receiving portion. , the proximal end surface of the rib is pressed against one of the housing and the cover on which the rib is provided. As a result, the tip end surface of the rib is more firmly pressed against the receiving portion. Thereby, the liquid-tight performance between the rib and the receiving portion can be further improved. Furthermore, as the connecting portion is deformed (for example, the connecting portion is tilted), the plate-like portion as a whole moves in a direction perpendicular to the mounting direction of the cover. By further abutting the part and the receiving part, it is possible to further improve the liquid-tight performance.

According to the connector having the configuration [3] above, the plate-like portion of the rib has a groove portion at a location away from the tip end surface. As a result, when a liquid such as water or oil actually comes into contact with the liquid-tight part, the liquid is guided toward the groove, so that the tip of the rib makes surface contact with the receiving part near the contact point. This prevents liquid from remaining in the tank. Therefore, the connector with this configuration can further improve the liquid-tight performance between the rib and the receiving part.

As described above, according to the present invention, it is possible to provide a connector that can suppress unintended short circuits between terminals even if the terminal fittings are fastened to the terminals with bolts.

The present invention has been briefly described above. Further, details of the present invention will become clearer by reading the detailed description described below with reference to the accompanying drawings.

FIG. 1 is a perspective view of an electric wire with a connector including a connector according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the electric wire with a connector shown in FIG. 1. FIG. 3 is an enlarged view of section A in FIG. 2. FIG. 4(a) is a top view showing how the cover is attached to the housing, and FIG. 4(b) is a top view showing the state in which the cover is completely attached to the housing. 5(a) is a right side view of the electric wire with a connector shown in FIG. 1, and FIG. 5(b) is a left side view of the electric wire with a connector shown in FIG. 1. 6(a) is a perspective view of the cover, FIG. 6(b) is a sectional view taken along line CC in FIG. 6(a), and FIG. 6(c) is a sectional view shown in FIG. 6(b). FIG. 7(a) to 7(c) show that when the cover is attached to the housing, the locking protrusion of the housing is received in the recess of the locking piece of the cover and is inserted into the locking hole of the locking piece. FIG. 4 is a diagram for explaining how to be guided. 8(a) is a sectional view taken along line BB in FIG. 4(b), and FIG. 8(b) is an enlarged view of section D in FIG. 8(a). FIGS. 9(a) and 9(b) are diagrams for explaining a process in which a liquid-tight portion is formed by abutting a rib and a receiving portion. FIG. 10(a) is a right side view showing how the cover is attached to the housing, and FIG. 10(b) is a right side view showing the state in which the cover is completely attached to the housing.

<Embodiment>
Hereinafter, a connector-equipped electric wire 1 including a connector 6 according to an embodiment of the present invention will be described with reference to the drawings. The electric wire 1 with a connector is typically used by being attached to a housing of a transmission that constitutes a drive system of a vehicle. In other words, the electric wire 1 with a connector is a member that constitutes a part of a wire harness for a vehicle.

For convenience of explanation, "front-back direction", "left-right direction", "up-down direction", "front", "rear", "left", "right", "top", and "bottom" are used as shown in the drawings below. ” is defined. The "front-back direction", the "left-right direction", and the "up-down direction" are orthogonal to each other. The front-rear direction coincides with the direction in which the housing 4 is fitted with a mating connector (not shown), and the front side in the mating direction (the upper right side in Fig. 2) where the mating connector is mated is the front side. The back side in the opposite fitting direction (lower left side in FIG. 2) is the rear side.

As shown in FIG. 2, the electric wire 1 with a connector shown in FIG. and. The housing 4 and the cover 5 constitute a connector 6 according to an embodiment of the present invention. Hereinafter, the parts constituting the electric wire with connector 1 will be explained in order.

First, the electric wire 2 will be explained. The electric wire 2 includes a conductor core wire 11 and a resin coating 12 that covers the conductor core wire 11, as shown in FIGS. 2 and 4(a). At the end of the electric wire 2, a predetermined end treatment is performed, the resin coating 12 is removed, and the conductor core wire 11 is exposed. The electric wire 2 is typically used while being grounded.

Next, the terminal fitting 3 will be explained. As shown in FIG. 2, the metal terminal fitting 3 is crimped to a round flat plate-shaped terminal portion 21 in which a bolt hole is formed, and to the conductor core wire 11 adjacent to the terminal portion 21 and exposed to the electric wire 2. It integrally includes a core wire crimping part 22 and a covering crimping part 23 that is adjacent to the core wire crimping part 22 and is crimped to the tip of the resin coating 12 of the electric wire 2. The terminal portion 21 is fastened and fixed to a fastened portion 7a of the bus bar 7, which will be described later.

Next, the housing 4 will be explained. As shown in FIG. 2, the resin housing 4 includes a main body part 31, a connector fitting part 32 located on the front side of the main body part 31, and a cover mounting part 33 located on the rear side of the main body part 31. Prepare as one. Inside the main body portion 31, a plurality of (in this example, two) bus bars 7 (metal plates) extending in the front-rear direction are integrated by insert molding.

As shown in FIGS. 1 and 2, the main body portion 31 has a cylindrical portion, and a rear end portion of the cylindrical portion protrudes outward in the radial direction of the cylindrical portion in a predetermined shape. It has a flange portion 34. A plurality of bolt holes 35 are formed in the flange portion 34 and penetrate in the front-rear direction.

The main body 31 is typically constructed by inserting a cylindrical portion of the main body 31 into a circular opening (not shown) in a housing of a vehicle transmission, and inserting a bolt (not shown) into a bolt hole 35. By fastening and fixing the flange portion 34 to the housing using a screw, the flange portion 34 is fixed to the housing. When the main body part 31 is fixed to the housing, the connector fitting part 32 (that is, the mating connector to be fitted to the connector fitting part 32) is located in the air, and the cover fitting part 33 (That is, the cover 5 to be attached to the cover attachment part 33) will be located in the lubricating oil of the transmission.

As shown in FIGS. 1, 2, and 8(a), the connector fitting portion 32 has a rectangular hood-like shape that opens toward the front. A mating connector is inserted and fitted into the connector fitting portion 32. As a result, the mating terminal (not shown) accommodated in the mating connector and the portion (not shown) exposed in the internal space of the connector fitting portion 32 of the bus bar 7 are electrically connected. As a result, the other party electric wire (not shown) connected to the other party terminal and the bus bar 7 built in the housing 4 are electrically connected.

The cover attachment portion 33 is a portion to which the terminal fitting 3 is fastened and fixed, and is also a portion to which the cover 5 is attached. In the cover mounting portion 33, as shown in FIGS. 2 and 3, the fastened portions 7a, which are the rear end portions of the two bus bars 7, protrude rearward from the main body portion 31 at a predetermined interval in the vertical direction. is exposed. A bolt hole is formed in the fastened portion 7a. As can be understood from FIGS. 2 to 4, the fastened portion 7a of the lower bus bar 7 is located on the rear side of the fastened portion 7a of the upper bus bar 7. In other words, the two fastened parts 7a are arranged so as to be offset from each other in the front-back direction when viewed from the top and bottom.

As shown in FIG. 8, when the cover 5 is attached to the cover attachment part 33, the cover attachment part 33 cooperates with the cover 5 to form two accommodation chambers each accommodating the two fastened parts 7a. 36 in a vertically aligned manner. As shown in FIG. 2 and FIG. It has a partition wall 37 located between the fastened portion 7a and the lower fastened portion 7a. The partition wall 37 has a flat plate shape that expands in the left-right direction and extends rearward.

As shown in FIGS. 3, 8(b), and 9(a), the rear end surface of the partition wall 37 is formed such that the upper corner of the rear end surface of the partition wall 37 is recessed forward and downward (as a result, the rear end surface of the partition wall 37 is recessed forward and downward). The receiving portion 38 is formed so that the rear end surface has a stepped shape. That is, the receiving portion 38 is a recessed portion that is recessed forward and downward, opens rearward and upward, and expands in the left-right direction. As shown in FIG. 9A, the receiving portion 38 has a vertical surface 38a that is a rectangular plane that extends in the vertical direction and spreads in the left-right direction, and a rectangular plane that extends rearward from the lower edge of the vertical surface 38a and spreads in the left-right direction. It is defined by a horizontal plane 38b. The receiving portion 38 defines a liquid-tight portion 9a (see FIGS. 8(b) and 9(b)) in cooperation with ribs 53 of the cover 5, which will be described later.

As shown in FIG. 3, the cover attachment portion 33 has a shape that defines a nut installation portion 39 below each fastened portion 7a. Each nut installation part 39 is a space for placing a nut 63 (see FIG. 2) used when fastening and fixing the terminal part 21 of the terminal fitting 3 to the corresponding fastened part 7a, and has an opening at the rear. and faces the lower surface of the corresponding fastened portion 7a. The partition wall 37 of the cover attachment part 33 also serves as a wall defining the lower end of the upper nut installation part 39 of the two nut installation parts 39.

As shown in FIG. 2, the cover mounting portion 33 is provided with a flat guide piece 41 that extends from the main body portion 31 in the left-right direction and extends rearward at a position above the upper fastened portion 7a. A locking protrusion 41a that projects upward is formed on the upper surface of the guide piece 41. A flat guide piece 42 that extends from the main body 31 in the vertical direction and extends rearward is provided at the right side of the pair of upper and lower fastened parts 7a. A locking protrusion 42a that protrudes rightward is formed on the right side of the guide piece 42. A flat guide piece 47 that extends from the main body 31 in the left-right direction and extends rearward is provided at the left side of the lower fastened portion 7a. A locking projection (not shown) is formed on the lower surface of the guide piece 47 and projects downward.

More specifically, as shown in FIG. 3, the guide piece 42 has a land that protrudes to the right (outside) and extends in a band shape in the front-rear direction at the vertical center of the right end surface (outer end surface) of the guide piece 42. A portion 42b is formed, and a locking protrusion 42a is formed on the top surface of the land portion 42b. The land portion 42b extends to a position rearward from the vertically extending rear end surface of the guide piece 42. As shown in FIG. 10(b), the land portion 42b fits into a locking hole 56a extending in the front-rear direction formed in a locking piece 56 of the cover 5, which will be described later, when the cover 5 is completely attached to the housing 4. It functions to block the whole thing.

Furthermore, as shown in FIGS. 2 and 3, on both outer surfaces in the left and right direction of the pair of left and right side walls that define both left and right ends of the lower nut installation part 39, there are a pair of recesses that are recessed inward in the left and right direction and extend in the front and back direction. A guide groove 43 is provided. The guide pieces 41 , 42 , 47 and the guide groove 43 function to guide the cover 5 when attaching the cover 5 to the cover attachment part 33 and to fix the cover 5 to the cover attachment part 33 .

As shown in FIG. 2, the cover attachment portion 33 has a pair of protrusions that protrude rearward at the right position of the guide piece 41, and are spaced apart from each other by a certain distance, and are attached to the casing of the cover 5 to be attached, which will be described later. It extends to follow the shape of a portion of the circumferential edge of the front end opening of the body portion 51 in the circumferential direction. As a result, a groove 48 is defined between the pair of protrusions, which extends along the shape of the portion of the circumferential edge of the front end opening of the cover 5 in the circumferential direction. A rib 59 (see FIG. 6(a)) of the cover 5, which will be described later, is engaged with the groove portion 48.

As shown in FIGS. 1 and 8(a), in the lower area of the main body 31 of the housing 4 (the area below the connector fitting part 32 and the cover attachment part 33), a second connector fitting part 44 is provided. is provided. A plurality of pin terminals 8 extending in the front-rear direction are integrated into the second connector fitting portion 44 by insert molding. A rectangular hood-shaped first hood part 45 that opens forward is formed on the front side of the second connector fitting part 44, and a rectangular hood part 45 that opens rearward is formed on the rear side of the second connector fitting part 44. A second hood portion 46 having a shape is formed.

The front end portion of the pin terminal 8 is exposed in the interior space of the first hood portion 45, and the rear end portion of the pin terminal 8 is exposed in the interior space of the second hood portion 46. A second mating connector (not shown) and a third mating connector (not shown) are inserted and fitted into the first hood part 45 and the second hood part 46, respectively. As a result, the second mating terminal (not shown) accommodated in the second mating connector and the third mating terminal (not shown) accommodated in the third mating connector become pin terminals. It will be electrically connected via 8.

Next, the cover 5 will be explained. As shown in FIG. 6(a), the cover 5 made of resin has a substantially rectangular parallelepiped box-shaped housing portion 51 that opens forward and downward. A flat partition wall 52 is formed in the internal space of the casing 51 and extends from the inner surface of the rear wall of the casing 51 in the left-right direction and extends forward. A rib 53 is formed on the front end surface of the partition wall 52 so as to correspond to the receiving portion 38 (see FIG. 3) of the housing 4 and to protrude forward and expand in the left-right direction.

More specifically, as shown in FIG. 9A, a recess 71 having a substantially U-shaped cross section is formed in the front end surface of the partition wall 52 and is recessed rearward and extends in the left-right direction. The rib 53 includes a plate-like portion 72 and a connecting portion 73. The plate portion 72 is a rectangular flat portion that extends in the front-rear direction and expands in the left-right direction. The connecting portion 73 is a portion that extends in the vertical direction and expands in the left-right direction so as to connect the rear end portion of the plate-shaped portion 72 and the lower inner wall surface 71b of the recess 71. A gap R is provided between the connecting portion 73 and the bottom surface 71a of the recess 71, which extends in the vertical direction and expands in the left-right direction. The connecting portion 73 is elastically deformable so as to tilt rearward (to narrow the gap R) (see FIG. 9(b)).

The plate-shaped portion 72 of the rib 53 protrudes forward from the front end surface of the partition wall 52 and has a thickness and protrusion length sufficient to enter the receiving portion 38 of the housing 4 . Each of the front end surface (distal end surface) 72a and rear end surface 72b (base end surface) of the plate-like portion 72 is a plane that extends in the vertical direction and spreads in the left-right direction, and the lower surface 72c of the plate-like portion 72 extends in the front-rear direction. Moreover, it is a plane that extends in the left-right direction. A groove portion 72d that is depressed downward and widens in the left-right direction is formed in the center portion of the upper surface of the plate-like portion 72 in the front-rear direction away from the front end surface 72a.

The partition wall 52 is provided at a position corresponding to the partition wall 37 (see FIG. 3) of the housing 4, and similarly to the partition wall 37, it connects the two storage chambers 36 vertically when the cover 5 is attached to the housing 4. It functions as part of the dividing wall. Therefore, as shown in FIG. 6A, in the internal space of the housing portion 51, the upper region of the partition wall 52 constitutes a part of the accommodation chamber 36 that accommodates the upper fastened portion 7a, and the upper region of the partition wall 52 The lower region constitutes a part of the storage chamber 36 that accommodates the lower fastened portion 7a.

A pair of upper and lower electric wire draw-out portions 54 are formed in the left wall portion 51a of the housing portion 51, and are open in the front and recessed in the rear so as to communicate with the pair of upper and lower storage chambers 36 in the left-right direction. Each wire pull-out portion 54 functions as an opening for pulling out the wire 2 connected to the terminal fitting 3 housed in the corresponding storage chamber 36 to the outside (to the left).

A tongue-shaped locking piece 55 that expands in the left-right direction and extends forward in a cantilever shape is formed on a part of the upper wall part 51b of the housing part 51, corresponding to the guide piece 41 of the housing 4. has been done. A tongue-shaped locking piece 56 is formed on a part of the right wall part 51c of the housing part 51, corresponding to the guide piece 42 of the housing 4, and expanding in the vertical direction and extending forward in a cantilever shape. has been done. A tongue-shaped locking piece 58 that expands in the left-right direction and extends forward in a cantilever shape is formed on a portion of the lower wall portion 51d of the housing portion 51, corresponding to the guide piece 47 of the housing 4. has been done. The locking pieces 55, 56, and 58 are respectively formed with substantially rectangular locking holes 55a, 56a, and 58a that penetrate in the plate thickness direction and extend in the front-rear direction. A pair of guide ribs 57 extending in the front-rear direction are formed at the lower end of the housing portion 51 in correspondence with the pair of guide grooves 43 of the housing 4 .

As shown in FIGS. 6(a) and 10(a), the locking hole 56a extending in the front-rear direction of the locking piece 56 is a gap located behind the connecting portion 73 of the rib 53 when viewed from the right. R (see FIG. 9(a)) extends rearward to a visible position (see especially FIG. 10(a)). This is because the locking hole 56a is used as a hole into which a special mold for forming the gap R is inserted when the housing 4 is molded.

As shown in FIGS. 6(b) and 6(c), the lower surface of the front end edge extending in the left-right direction of the locking piece 55 (the locking protrusion 41a of the guide piece 41 when the cover 5 is attached to the housing 4) A concave portion 55b is formed in the opposing plate surface, which is recessed upward (in a direction away from the locking protrusion 41a), extends in the front-rear direction of the front end edge, and is connected to the locking hole 55a. As the pair of side end surfaces 55c defining both left and right edges of the recess 55b move forward (away from the locking hole 55a), the width w (see FIG. 6(b)) of the recess 55b in the left and right direction gradually increases. It is tilted in the direction. The width w (minimum value of the width w) at the rear end position (position adjacent to the locking hole 55a) of the recess 55b is greater than or equal to the width of the locking protrusion 41a in the left-right direction. The recess 55b functions to receive the locking projection 41a and guide the locking projection 41a to the locking hole 55a when the cover 5 is attached to the housing 4.

As shown in FIG. 6A, a groove 48 of the housing 4 (see FIG. (see), a rib 59 is formed that protrudes forward and extends following the shape of the portion of the circumferential edge in the circumferential direction. Above, the parts constituting the electric wire with connector 1 have been explained in order.

Next, a procedure for assembling the electric wire 1 with a connector will be explained. First, a rubber rectangular frame-shaped packing 64 (see FIG. 2) is attached to a predetermined position in the internal space of the connector fitting part 32 of the housing 4 (see FIG. 8(a)), and a rubber O-ring is attached. 65 (see FIG. 2) is attached to the outer peripheral surface of the cylindrical portion of the main body portion 31 of the housing 4 (see FIG. 8(a)).

Next, as shown in FIG. 2, the terminal fittings 3 to which the electric wires 2 are connected are fastened and fixed to the fastened portions 7a of the pair of bus bars 7 of the housing 4 (see FIG. 4(a)). For this purpose, first, the nuts 63 are inserted into each nut installation portion 39 of the housing 4 from the rear. Thereby, each nut 63 is installed in the nut installation part 39 so as not to be rotatable around the axis of the nut 63.

Next, the terminal portion 21 of the terminal fitting 3 to which the electric wire 2 is connected is placed on the upper surface of the fastened portion 7a of each bus bar 7 so as to face the normal position, and the bolt 61 with the washer 62 is inserted into the terminal portion from above. 21 and the bolt hole of the fastened part 7a, and engages with the nut 63 located below the fastened part 7a. As a result, the fastened portion 7a and the terminal portion 21 are sandwiched between the bolt 61 and the nut 63, so that the terminal fitting 3 is fastened and fixed to the fastened portion 7a while facing the normal position.

At this time, due to the fact that the two fastened parts 7a are arranged so as to be offset from each other in the front-back direction, when the bolt 61 is fastened to the fastened part 7a, the bolt 61 is not fastened to one fastened part 7a. The bolt 61 is less likely to interfere with the fastening work to other fastened parts 7a. As described above, the electric wire 2 connected to the terminal fitting 3 and the bus bar 7 built in the housing 4 are electrically connected.

The tightening direction of the bolt 61 (rotational direction in which the bolt 61 is tightened) is clockwise (clockwise) when viewed from above. When each terminal fitting 3 is in its normal position, each terminal fitting 3 extends to the left from the terminal portion 21 (fastened portion 7a), as shown in FIG. The connected electric wire 2 also extends to the left.

Next, the cover 5 is attached to the cover attaching portion 33 of the housing 4 so as to cover the connection portion of each terminal fitting 3. For this reason, the cover 5 is brought close to the cover attachment part 33 from the rear (see FIG. 4(a)). Then, the pair of electric wires 2 enters the pair of electric wire pull-out portions 54 of the cover 5 so that the front end surface of the partition wall 52 of the cover 5 and the rear end surface of the partition wall 37 of the housing 4 approach each other while facing each other in the front-rear direction. , and the guide piece 41, the guide piece 42, and the guide piece 47 of the cover attachment part 33, the inner surface of the upper wall part 51b of the casing part 51 of the cover 5, the inner surface of the right wall part 51c of the casing part 51, and The inner surfaces of the lower wall portion 51d of the casing portion 51 are guided respectively, and the pair of guide ribs 57 of the casing portion 51 are slid while being respectively engaged with the pair of guide grooves 43 of the cover attachment portion 33. Then, the cover 5 is moved forward with respect to the cover attachment part 33.

The forward movement of the cover 5 is at the installation completion position where the front end surface of the housing section 51 abuts the rear end surface of the main body section 31 (more specifically, the flange section 34) of the housing 4 (see FIG. 4(b)). This continues until the cover 5 reaches . Immediately before the cover 5 reaches the installation completion position, the front end edges of the locking pieces 55, 56, 58 of the cover 5 lock the locking protrusions 41a, 42a of the guide pieces 41, 42 and the guide piece 47, respectively. By climbing onto the protrusion (not shown), each of the locking pieces 55, 56, and 58 is temporarily elastically deformed in a direction away from the corresponding locking protrusion. At this time, in particular, the locking piece 55 is locked when the recess 55b (see FIG. 6(b) etc.) formed on the lower surface of the front edge of the locking piece 55 receives the locking protrusion 41a. The front end edge of the piece 55 rides on the locking protrusion 41a (see FIGS. 7(a) and 7(b)). The effect of this will be described later.

Immediately before the cover 5 reaches the attachment completion position, the front end surface 72a of the plate-like portion 72 of the rib 53 comes into surface contact with the vertical surface 38a of the receiving portion 38, as shown in FIG. 9(a). At this time, a gap S exists between the lower surface 72c of the plate-shaped portion 72 and the horizontal surface 38b of the receiving portion 38. A gap R exists between the rear end surface 72b of the plate-shaped portion 72 and the bottom surface 71a of the recessed portion 71.

After the front end surface 72a of the plate-shaped portion 72 comes into surface contact with the vertical surface 38a of the receiving portion 38, the plate-shaped portion 72 is moved to the connecting portion 73 of the rib 53 due to the backward pressing force that the plate-shaped portion 72 receives from the vertical surface 38a. Elastically deforms so that it tilts backwards. When the connecting portion 73 tilts rearward, the upper end portion of the connecting portion 73 slides backward and downward (with respect to the partition wall 52). Along with this, the plate-shaped portion 72 also slides backward and downward (with respect to the partition wall 52) (see the two thin white arrows in FIG. 9(b)). As the movement of the cover 5 progresses, the amount of elastic deformation of the connecting portion 73 (that is, the backward inclination angle of the connecting portion 73) increases. Accordingly, the amount of rearward and downward sliding of the plate portion 72 (with respect to the partition wall 52) increases, and as a result, the gap R and the gap S gradually decrease.

When the cover 5 moves to the installation completion position, each of the front end edges of the locking pieces 55, 56, and 58 climbs over the corresponding locking protrusion, so that each of the locking pieces 55, 56, and 58 moves to the corresponding locking position. It returns elastically in the direction of approaching the protrusion. As a result, the locking protrusions corresponding to each of the locking holes 55a, 56a, 58a of the locking pieces 55, 56, 58 enter, so that each of the locking holes 55a, 56a, 58a corresponds to the locking protrusion. (See Figure 1). Thereby, the attachment of the cover 5 is completed, the cover 5 is held in the attachment completed position, and the separation of the cover 5 from the housing 4 is prevented.

When the cover 5 is completely attached, the front end surface of the partition wall 52 and the rear end surface of the partition wall 37 are in contact with each other, as shown in FIG. 9(b). Furthermore, the gap R between the rear end surface 72b of the plate-like portion 72 of the rib 53 and the bottom surface 71a of the recessed portion 71 disappears, and the rear end surface 72b and the bottom surface 71a are brought into pressure contact. As a result, the front end surface 72a of the plate-like portion 72 is more firmly pressed against the vertical surface 38a of the receiving portion 38 due to the forward pressing force that the plate-like portion 72 receives from the bottom surface 71a. Furthermore, the gap S between the lower surface 72c of the plate-shaped portion 72 and the horizontal surface 38b of the receiving portion 38 disappears, and the lower surface 72c and the horizontal surface 38b are in surface contact. In this way, the front end surface 72a of the plate-like part 72 and the vertical surface 38a of the receiving part 38 are in surface contact, and the lower surface 72c of the plate-like part 72 and the horizontal surface 38b of the receiving part 38 are in surface contact, so that A liquid-tight portion 9a is configured.

The liquid-tight portion 9a configured as described above has a labyrinth structure that lengthens the ingress path (so-called creepage distance) of water attempting to pass between the partition walls 52 and 37, and exhibits an excellent liquid-tight function. . Note that the front end surface 72a of the plate-shaped portion 72 and the vertical surface 38a of the receiving portion 38 are in surface contact over the entire area of the facing area (that is, they are arranged so as to be in complete contact with each other). Although it is preferable, they may be arranged in close contact (surface contact) in a part of the facing area and spaced apart in another part. It is preferable that the lower surface 72c of the plate-shaped portion 72 and the horizontal surface 38b of the receiving portion 38 are in surface contact with each other over the entire area facing each other (that is, they are arranged so as to be in complete contact with each other). , may be placed in close contact (surface contact) in a part of the facing area and spaced apart in other parts, or may be arranged sufficiently to suppress the movement of liquid such as oil over the entire area of the facing area. They may be arranged at small intervals. That is, as long as the liquid-tight portion 9a can exhibit the desired liquid-tight performance, the degree of contact between the receiving portion 38 and the rib 53 is not particularly limited.

When the liquid-tight part 9a is configured, if a liquid such as water or oil comes into contact with the liquid-tight part 9a, the liquid enters into the groove 72d formed on the upper surface of the plate-like part 72 of the rib 53. will be guided to. This suppresses the accumulation of liquid near the contact point where the front end surface 72a of the plate-shaped portion 72 and the vertical surface 38a of the receiving portion 38 make surface contact. Therefore, the liquid-tight performance between the rib 53 and the receiving portion 38 can be further improved.

Note that, as shown in FIG. 9(b), in a state where the front end surface of the partition wall 52 and the rear end surface of the partition wall 37 are in contact with each other, manufacturing tolerances (so-called manufacturing variations) in the dimensions of the ribs 53 and the receiving portions 38, etc. Due to ) may occur. In this case, this dimensional difference can be absorbed by the portion defining the bottom surface of the groove portion 72d having the smallest thickness (the smallest rigidity) in the plate portion 72 bulging downward. ing.

Further, when the cover 5 is completely attached, the ribs 59 of the cover 5 and the grooves 48 of the housing 4 engage with each other to form a liquid-tight portion 9b (see FIG. 8(a)). More specifically, the rib 59 is formed to have a thickness and a protruding length that can be stored in the recess of the groove 48 . The liquid-tight portion 9b has a pair of side wall outer surfaces of the rib 59 and a pair of side wall inner surfaces of the groove portion 48 facing each other, and a front end surface of the rib 59 and a bottom surface of the groove portion 48 facing each other. 48.

The liquid-tight portion 9b configured as described above has a labyrinth structure that lengthens the ingress path (so-called creepage distance) of water attempting to pass between the rib 59 and the groove 48, and has an excellent liquid-tight function. demonstrate. Note that the pair of side wall outer surfaces of the rib 59 and the pair of side wall inner surfaces of the groove portion 48 may be arranged so as to be in complete contact with each other on either side, or oil etc. may pass through the liquid-tight portion 9b. They may be arranged at sufficiently small intervals to suppress the movement of the liquid, or they may be arranged in close contact with each other in some parts and at intervals in other parts. The positional relationship between the front end surface of the rib 59 and the bottom surface of the groove portion 48 is also similar. That is, as long as the liquid-tight portion 9b can exhibit the desired liquid-tight performance, the degree of contact between the groove portion 48 and the rib 59 is not particularly limited.

When the cover 5 is completely attached, the entire locking hole 56a of the locking piece 56 is closed by the land portion 42b of the guide piece 42, as shown in FIG. 10(b). Further, although not shown, the entire locking hole 55a of the locking piece 55 is closed by the guide piece 41, and the entire locking hole 58a of the locking piece 58 is closed by the guide piece 47. . This can prevent liquids such as water and oil from moving between the inside and outside of the cover 5.

Hereinafter, immediately before the cover 5 reaches the installation completion position, the locking piece 55 is set in a state where the recess 55b receives the locking protrusion 41a, as shown in FIGS. 7(a) and 7(b). The effect caused by the front end edge of the locking piece 55 riding on the locking protrusion 41a will be explained.

In the housing 4 and the cover 5, a locking mechanism consisting of a locking protrusion 42a and a locking piece 56 is provided on the right side surface, as shown in FIG. 5(a). On the other hand, as shown in FIG. 5(b), a space is required on the left side surface for drawing out the electric wire 2 to the outside (to the left), so there is insufficient space to provide a locking mechanism. Therefore, no locking mechanism is provided on the left side surface.

Therefore, the front end edges of the locking pieces 55, 56, 58 of the cover 5 are in a state where they are respectively riding on the corresponding locking protrusions (that is, each of the locking pieces 55, 56, 58 is in a state where In the state in which the locking piece 56 is temporarily elastically deformed in the direction of moving away, the locking piece 56 is deformed in the left-right direction as shown in FIGS. 7(a) and 7(b) due to the rightward force received from the locking protrusion 42a. Furthermore, the cover 5 (that is, the locking piece 55) tends to be displaced from its normal position to the right side with respect to the housing 4 (that is, the locking protrusion 41a). Note that in the vertical direction, the upward force that the locking piece 55 receives from the locking protrusion 41a and the downward force that the locking piece 58 receives from the corresponding locking protrusion cancel each other out, so that the cover 5 is Displacement of the housing 4 from its normal position to either side in the vertical direction is unlikely to occur.

When the cover 5 approaches the installation completion position while maintaining the state in which the cover 5 is displaced from its normal position to the right side with respect to the housing 4, the rib 53 interferes with the opening edge of the receiving part 38. A situation may occur in which the rib 53 cannot enter the receiving portion 38 or a situation in which the rib 59 interferes with the opening edge of the groove portion 48 and the rib 59 cannot enter the groove portion 48 .

In this regard, in the present embodiment, even if the cover 5 is displaced from its normal position to the right side with respect to the housing 4, the locking protrusion 41a is not inserted into the recess as shown by the arrow in FIG. 7(b). In the process of moving towards the locking hole 55a while being guided by the inclined side end surface 55c of the 55b, the positional deviation is gradually reduced. Then, when the cover 5 reaches the installation completion position, as shown in FIG. 7(c), the positional deviation is eliminated and the locking protrusion 41a is securely entered into the locking hole 55a and locked. can be done. As a result, the rib 53 can reliably enter the receiving portion 38 to form the liquid-tight portion 9a, and the rib 59 can reliably enter the groove portion 48 to form the liquid-tight portion 9b, so that the housing 4 The work of attaching the cover 5 to the holder becomes easier.

In this embodiment, as described above, a mechanism for reducing displacement of the cover 5 with respect to the housing 4 is provided inside the locking mechanism consisting of the locking piece 55 and the locking protrusion 41a. Therefore, the overall size of the connector 6 can be reduced compared to the case where a mechanism for reducing displacement of the cover 5 with respect to the housing 4 is separately provided outside the lock mechanism.

Furthermore, in this embodiment, as can be understood from FIG. 7C, the width of the locking hole 55a of the locking piece 55 in the left-right direction is larger than the width of the locking protrusion 41a in the left-right direction. In other words, as shown in FIG. 7(c), with the locking projection 41a locked in the locking hole 55a, the locking piece 55 is held against the locking projection 41a (i.e., the housing 4). (That is, the cover 5) can be moved slightly in the left and right direction. Therefore, the cover 5 can act in response to the shaking of the electric wire 2 when the electric wire 1 with a connector is mounted on a vehicle, thereby preventing damage to the electric wire 2 caused by the electric wire 2 coming into pressure contact with the electric wire pull-out portion 54 of the cover 5. attachment can be suppressed. Furthermore, by moving the cover 5 relative to the housing 4, a portion of each of the rib 53 and the receiving portion 38, and a portion of each of the rib 59 and the groove portion 48 can be brought into close contact with each other, The movement of liquid such as oil through the liquid-tight portions 9a and 9b can be more reliably suppressed.

Through the above steps, the attachment of the cover 5 to the housing 4 is completed, and as shown in FIG. 1, the electric wire 1 with a connector is obtained.

Note that, as shown in FIG. 8A, when the cover 5 is completely attached, the lower bolt 61 is located directly below the partition wall 52 of the cover 5. Therefore, even if the cover 5 is attached to the housing 4 with the lower bolts 61 floating upward due to incomplete tightening, the ribs 53 of the partition wall 52 of the cover 5 will interfere with the lower bolts 61. As a result, the cover 5 cannot be moved to the installation completion position. Therefore, by detecting that the cover 5 cannot be moved to the installation completion position, it can be detected that the lower bolt 61 is floating upward due to incomplete fastening.

When the cover 5 is completely attached, the electric wire 2 extends from the electric wire pull-out portion 54 of the cover 5. Therefore, even if the terminal fitting 3 after being fastened and fixed is unintentionally rotated from its normal position in the direction of loosening (rotation direction in which the bolt 61 is loosened, counterclockwise (counterclockwise direction) when viewed from above), the electric wire 2 comes into contact with the rear edge of the wire pull-out portion 54, whereby rotation of the terminal fitting 3 can be suppressed.

The completed electric wire 1 with a connector shown in FIG. 1 is attached to a housing of a transmission of a vehicle, and a mating connector is inserted and fitted into the connector fitting portion 32. Thereby, as described above, the mating terminal housed in the mating connector and the bus bar 7 built in the housing 4 are electrically connected.

As a result, the mating wire connected to the mating terminal of the mating connector and the electric wire 2 connected to the terminal fitting 3 are electrically connected via the bus bar 7 built into the housing 4. The electric wire 2 is grounded (earthed) to a predetermined earthing point of the vehicle. As a result, the other wire electrically connected to the wire 2 is also grounded.

When the electrical wire 1 with the connector is attached to the housing of the transmission of the vehicle, the cover attachment portion 33 (i.e., the cover 5) is located in the lubricating oil of the transmission, as described above. Therefore, the fastened portion 7a of the bus bar 7 located at the cover attachment portion 33 is also exposed to the lubricating oil. By attaching the cover 5 to the housing 4, metal powder in the lubricating oil can be prevented from coming into contact with the fastened portion 7a of the bus bar 7.

<Action/Effect>
As described above, according to the connector 6 included in the electric wire with connector 1 according to the present embodiment, by attaching the cover 5 to the housing 4, a plurality of accommodation chambers 36 are defined between the housing 4 and the cover 5. . Each of the plurality of storage chambers 36 accommodates the fastened portion 7a of the bus bar 7 (that is, the fastened portion between the bus bar 7 and the bolt 61). Furthermore, the ribs 53 of the cover 5 and the receiving portions 38 of the housing 4 are provided on the partition walls 37 and 52 of the accommodation chamber 36 located between one fastened part 7a and the other fastened part 7a of the bus bar 7. A liquid-tight portion 9a is provided, which is configured such that the two are in contact with each other. This liquid-tight portion 9a has a structure (so-called labyrinth structure) that lengthens the entry path (so-called creepage distance) for liquids such as water and oil that try to pass through the partition walls 37 and 52, and has an excellent liquid-tight function. Demonstrate. As a result, even when the connector 6 is used in a general usage environment, the connector 6 is used in harsh environments where the connector 6 is exposed to water, oil, etc. (for example, in transmission lubricating oil). Even in such cases, the bus bars 7 can be appropriately electrically isolated from each other.

Further, when the cover 5 is attached to the housing 4, the tip end surface 72a of the rib 53 (plate-shaped portion 72) is pressed against the vertical surface 38a of the receiving portion 38 in a surface contact state, thereby forming the liquid-tight portion 9a. do. Therefore, even if the manufacturing tolerances (so-called manufacturing variations) in the dimensions of the ribs 53 and the receiving portions 38 are large, or when there is a positional shift (so-called rattling) between the housing 4 and the cover 5, the ribs It is possible to prevent an excessive gap from forming between 53 and the receiving portion 38.

Therefore, even if the connector 6 according to the present embodiment has a configuration in which the terminal fitting 3 is fastened to the bus bar 7 with the bolt 61, it is possible to suppress unintended short circuits between the bus bars 7. Furthermore, the connector 6 according to this embodiment allows easy attachment of the housing 4 and the cover 5, and can suppress misalignment between the two after attachment.

Furthermore, according to the connector 6 according to the present embodiment, when the housing 4 is attached to the cover 5, the connecting portion 73 extending from between the front end surface 72a and the rear end surface 72b of the plate-like portion 72 forming the rib 53 is received. The rear end surface 72b of the rib 53 (plate-shaped portion 72) is pressed against the bottom surface 71a of the recessed portion 71 of the cover 5 while being deformed in a direction away from the portion 38 (rearward). As a result, the front end surface 72a of the rib 53 (plate-like portion 72) is more firmly pressed against the vertical surface 38a of the receiving portion 38. Thereby, the liquid-tight performance between the rib 53 and the receiving portion 38 can be further improved. Furthermore, as the connecting portion 73 deforms (that is, the inclination of the connecting portion 73), the plate portion 72 also slides in a direction perpendicular to the cover installation direction (downward). By bringing the lower surface 72c of the shaped portion 72 into contact with the horizontal surface 38b of the receiving portion 38, the liquid-tight performance can be further improved.

Furthermore, according to the connector 6 according to this embodiment, the plate-like portion 72 of the rib 53 has a groove portion 72d at a location away from the front end surface 72a. As a result, when a liquid such as water or oil actually comes into contact with the liquid-tight portion 9a, the liquid is guided to enter the groove portion 72d, so that the front end surface 72a of the rib 53 is aligned with the vertical surface of the receiving portion 38. Retention of liquid in the vicinity of the contact point that makes surface contact with 38a is suppressed. Therefore, the connector 6 according to this embodiment can further improve the liquid-tight performance between the rib 53 and the receiving part 38.

<Other forms>
Note that the present invention is not limited to the above embodiments, and various modifications can be adopted within the scope of the present invention. For example, the present invention is not limited to the embodiments described above, and can be modified, improved, etc. as appropriate. In addition, the material, shape, size, number, arrangement location, etc. of each component in the above-described embodiments are arbitrary as long as the present invention can be achieved, and are not limited.

In the embodiment described above, the connecting portion 73 of the rib 53 extends in the vertical direction so as to connect the rear end portion of the plate-like portion 72 of the rib 53 and the lower inner wall surface 71b of the recess 71. On the other hand, the connecting portion 73 of the rib 53 extends in the vertical direction so as to connect a predetermined portion of the plate-like portion 72 of the rib 53 excluding both ends in the front-back direction and the lower inner wall surface 71b of the recess 71. Good too.

Furthermore, in the above embodiment, when the cover is completely attached, the front end surface 72a of the plate-like part 72 and the vertical surface 38a of the receiving part 38 are in pressure contact, and the rear end surface 72b of the plate-like part 72 and the recess 71 are in contact with each other. The bottom surface 71a is in pressure contact (see FIG. 9(b)). On the other hand, in the state where the cover is completely attached, as long as the front end surface 72a of the plate-shaped part 72 and the vertical surface 38a of the receiving part 38 are in pressure contact, the rear end surface 72b of the plate-shaped part 72 and the bottom surface of the recessed part 71 71a may be spaced apart from each other.

Furthermore, in the embodiment described above, the "receiving part" is provided on the housing 4 side, and the "rib" is provided on the cover 5 side. On the other hand, the "receiving part" may be provided on the cover 5 side, and the "rib" may be provided on the housing 4 side.

Furthermore, in the embodiment described above, as shown in FIG. shape) is formed on the rear end surface of the partition wall 37. Therefore, when the plate portion 72 of the rib 53 engages with the receiving portion 38 to form the liquid-tight portion 9a, the front end surface 72a and the lower surface 72c of the plate portion 72 are covered by the receiving portion 38. On the other hand, the upper surface of the plate-like portion 72 is exposed within the storage chamber 36 without being covered by the receiving portion 38 . On the other hand, from the viewpoint of further increasing the creepage distance and further improving the liquid-tight performance of the liquid-tight portion 9a, the receiving portion 38 has a shape ( For example, it may have a concave shape. Conversely, the recess 71 may not be provided at the tip of the partition 52, the partition 52 may be configured to have an open top surface similar to the receiving portion 38, and the plate-like portion 72 may be provided at the tip. . That is, as long as the liquid-tight part 9a can exhibit the desired liquid-tight performance, the specific shapes of the receiving part 38 and the ribs 53 are not particularly limited.

Regarding the liquid-tight portion 9b, the groove portion 48 may be formed of a plurality of depressions, the rib 59 may be formed of a plurality of protrusions, and the liquid-tight portion 9b may be formed by engaging them. That is, as long as the liquid-tight portion 9b can exhibit the desired liquid-tight performance, the specific shapes of the groove portion 48 and the ribs 59 are not particularly limited.

Furthermore, in the embodiment described above, the nut installation portion 39 and the partition wall 37 are integrated. On the other hand, the nut installation part 39 and the partition wall 37 may be provided independently.

Here, the features of the embodiment of the connector 6 according to the present invention described above will be briefly summarized and listed below in [1] to [3].
[1]
A connector (6) comprising a plurality of terminals (7), a housing (4) holding the plurality of terminals (7), and a cover (5) attached to the housing (4),
Each of the plurality of terminals (7) is
It has a fastened part (7a) to which the terminal fitting (3) can be connected by fastening with a bolt (61),
Each of the fastened parts (7a) is
accommodated in each of a plurality of accommodation chambers (36) defined between the housing (4) and the cover (5),
The partition wall (37, 52) of the accommodation chamber (36) located between one of the fastened parts (7a) and the other fastened part (7a) is
A liquid-tight part (9a) formed by abutting a rib (53) of one of the housing and the cover (5) and a receiving part (38) of the other (4) is connected to the partition wall (37, 52). ),
The rib (53) is
The tip end surface (72a) of the rib (53) is pressed against the receiving portion (38) while being in surface contact with the receiving portion (38);
Connector (6).
[2]
In the connector (6) described in [1] above,
The rib (53) is
a plate-like portion (72) having the distal end surface (72a) and a proximal end surface (72b) different from the distal end surface (72a); and the distal end surface (72a) and the proximal end surface of the plate-like portion (72). (72b) and the one (5) of the housing and the cover on which the rib (53) is provided,
When the tip surface (72a) is pressed against the receiving part (38),
The connecting portion (73) deforms away from the receiving portion (38), and the base end surface (72b) is pressed against the one (5) of the housing and the cover on which the rib (53) is provided. ,
Connector (6).
[3]
In the connector (6) described in [2] above,
The plate-shaped portion (72) of the rib (53) is
a groove portion (72d) recessed in the thickness direction of the plate-like portion (72) at a location away from the tip surface (72a);
Connector (6).

3 Terminal fitting 4 Housing 5 Cover 6 Connector 7 Bus bar (terminal)
7a Fastened part 9a Liquid-tight part 36 Storage chamber 37 Partition wall 38 Receiving part 52 Partition wall 53 Rib 61 Bolt 72 Plate-shaped part 72a Front end surface (tip surface)
72b Posterior end surface (base end surface)
72d Groove portion 73 Connecting portion

Claims (3)

A connector comprising a plurality of terminals, a housing holding the plurality of terminals, and a cover attached to the housing,
Each of the plurality of terminals is
It has a fastened part to which a terminal fitting can be connected by fastening with a bolt,
Each of the fastened parts is
accommodated in each of a plurality of accommodation chambers defined between the housing and the cover,
A partition wall of the accommodation chamber located between one of the fastened parts and the other fastened part,
At least a part of the partition wall has a liquid-tight part formed by contact between a rib of one of the housing and the cover and a receiving part of the other;
The rib is
The tip surface of the rib is pressed against the receiving part in a state where it is in surface contact with the receiving part,
connector. The connector according to claim 1,
The rib is
A plate-shaped part having the distal end surface and a proximal end surface different from the distal end surface, and the housing and the cover in which the predetermined location between the distal end surface and the proximal end surface of the plate-shaped part and the rib are provided. a connecting portion connecting the one to the other;
When the tip surface is pressed against the receiving part,
The connecting portion is deformed in a direction away from the receiving portion, and the proximal end surface is pressed against the one of the housing and the cover on which the rib is provided.
connector. The connector according to claim 2,
The plate-shaped portion of the rib is
having a groove recessed in the thickness direction of the plate portion at a location away from the tip surface;
connector.

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