JP2022042311A - connector - Google Patents

Abstract

To provide a connector that can suppress an unintended short circuit between terminals even when a terminal fitting is bolted to the terminal.SOLUTION: A connector 6 includes a plurality of terminals 7, a housing 4 that holds the plurality of terminals 7, and a cover 5 that can be attached to the housing 4. Each of the plurality of terminals 7 includes a fastened portion 7a to which a terminal fitting 3 can be connected by fastening with a bolt 61. Each of the fastened portions 7a is housed in each of a plurality of storage chambers 36 defined between the housing 4 and the cover 5. Partition walls 37 and 52 of the storage chamber 36 located between one fastened portion 7a and the other fastened portion 7a include a liquidtight portion 9a configured such that a rib 53 included in the cover 5 and a receiving portion 38 included in the housing 4 are in contact with each other in at least a part of the partition walls 37 and 52. The rib 53 is pressed against the receiving portion 38 in a state in which the tip surface 72a of the rib 53 is in surface contact with the receiving portion 38.SELECTED DRAWING: Figure 9

Description

The present invention relates to a connector comprising a plurality of terminals, a housing accommodating the plurality of terminals, and a cover attached to the housing.

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

Japanese Unexamined Patent Publication No. 2018-152265

In the above-mentioned type of connector, generally, a tubular (box-shaped) terminal fitting crimped to the terminal of an electric wire is inserted into a terminal accommodating chamber to accommodate the connector, and further, each of a plurality of terminal accommodating chambers is separated from each other by a partition wall. By doing so, it is possible to suppress an unintended short circuit of the circuit.

On the other hand, when the terminal fitting is connected to the bus bar (terminal) fixed to the housing by insert molding or the like by fastening with bolts, unlike the conventional connector described above, the storage space of the bolt itself and the fastening work are performed. It is necessary to secure a work space for this. Therefore, it is difficult to provide a terminal accommodating chamber separated by a partition wall like a conventional connector. However, even in the case of a connector in which the terminal fittings are bolted to the terminals, it is desirable to properly electrically isolate the terminals from each other as in the case of the conventional connector.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connector capable of suppressing an unintended short circuit between terminals even if the terminal fitting is bolted to the terminal. To do.

In order to achieve the above-mentioned object, the connector according to the present invention is characterized by the following [1] to [3].
[1]
A connector comprising a plurality of terminals, a housing for holding the plurality of terminals, and a cover attached to the housing.
Each of the plurality of terminals
It has a fastened part to which terminal fittings can be connected by fastening with bolts.
Each of the fastened portions
It is housed in each of the plurality of storage chambers defined between the housing and the cover.
The partition wall of the accommodation chamber located between one said portion to be fastened and the other said portion to be fastened is
At least a part of the partition wall has a liquid-tight portion formed by contacting the rib of one of the housing and the cover with the receiving portion of the other.
The rib is
The tip surface of the rib is pressed against the receiving portion in a state of being in surface contact with the receiving portion.
Must be a connector.
[2]
In the connector described in [1] above,
The rib is
A plate-shaped portion having a tip surface and a proximal end surface different from the distal end surface, a predetermined portion between the distal end surface and the proximal end surface of the plate-shaped portion, and a housing and a cover provided with the rib. It has a connecting portion that connects one of the above, and
When the tip surface is pressed against the receiving portion
The connecting portion is deformed in a direction away from the receiving portion, and the base end surface is pressed against the housing provided with the rib and the one of the cover.
Must be a connector.
[3]
In the connector described in [2] above,
The plate-shaped portion of the rib
A groove portion that is recessed in the thickness direction of the plate-shaped portion is provided at a position away from the tip surface.
Must be a connector.

According to the connector having the configuration of [1] above, by attaching the cover to the housing, a plurality of storage chambers are defined between the housing and the cover. In each of the plurality of storage chambers, the fastened portion of the terminal (that is, the fastening point between the terminal and the bolt) is housed. Further, the partition wall of the accommodation chamber located between one of the terminals to be fastened and the other fastened portion is configured such that the rib of one of the housing and the cover and the receiving portion of the other are in contact with each other. A liquidtight part is provided. This liquidtight portion has a structure (so-called labyrinth structure) that lengthens the entry path (so-called creepage distance) of a liquid such as water or oil that tries to pass through the partition wall, and exhibits an excellent liquidtight function. As a result, even if the connector is used in a general usage environment, the connector may be used in a harsh environment where the connector is exposed to water, oil, or the like (for example, in the lubricating oil of a transmission). However, the terminals can be properly electrically isolated from each other.

Further, when the cover is attached to the housing, the tip surface of the rib is pressed in a state of surface contact with the receiving portion to form a liquidtight portion. Therefore, even if there is a large manufacturing tolerance (so-called manufacturing variation) in the dimensions of the rib and the receiving part, or if there is a positional deviation (so-called rattling) between the housing and the cover, the rib and the receiving part It is possible to prevent an excessively large gap between the two. Therefore, even if the connector having this configuration has a configuration in which the terminal fitting is fastened to the terminal with a bolt, it is possible to suppress an unintended short circuit between the terminals.

In the above-mentioned "liquid-tight part", the liquid moves from one storage chamber to the other storage chamber as compared with the case where there is no such liquid-tight part (for example, when the housing and the cover are simply butted against each other). It suffices to have a function of suppressing (invasion), and does not necessarily have a function of completely preventing such movement of the liquid. In other words, the rib and the receiving portion described above may be arranged so as to be in perfect contact with each other, or may be arranged at a sufficiently small interval so as to suppress the movement of such a liquid. It may be arranged in close contact with each other in a part and spaced apart from each other in another part.

According to the connector having the configuration of [2] above, when the housing is attached to the cover, the connecting portion extending from between the tip end surface and the base end surface of the plate-shaped portion constituting the rib is deformed in a direction away from the receiving portion. , The base end surface of the rib is pressed against one of the housing and the cover provided with the rib. As a result, the tip surface of the rib is pressed more firmly against the receiving portion. This makes it possible to further improve the liquidtightness between the rib and the receiving portion. Further, as the connecting portion is deformed (for example, the inclination of the connecting portion), the plate-shaped portion moves so as to slide in a direction orthogonal to the mounting direction of the cover as a whole. Therefore, for example, this slid plate-shaped portion. It is also possible to further improve the liquidtightness performance by further contacting the portion and the receiving portion.

According to the connector having the configuration of [3] above, the plate-shaped portion of the rib has a groove portion at a position away from the tip 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 liquid enters the vicinity of the contact point where the tip surface of the rib comes into surface contact with the receiving part. The retention of liquid in the water is suppressed. Therefore, the connector having this configuration can further improve the liquidtightness between the rib and the receiving portion.

As described above, according to the present invention, it is possible to provide a connector capable of suppressing an unintended short circuit between terminals even if the terminal fitting is bolted to the terminal.

The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through the embodiments 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. FIG. 3 is an enlarged view of part A in FIG. FIG. 4A is a top view showing a state when the cover is attached to the housing, and FIG. 4B is a top view showing a state in which the attachment of the cover to the housing is completed. 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. 6 (a) is a perspective view of the cover, FIG. 6 (b) is a sectional view taken along the line CC of FIG. 6 (a), and FIG. 6 (c) is a sectional view shown in FIG. 6 (b). It is a perspective view which shows. 7 (a) to 7 (c) show that when the cover is attached to the housing, the locking projections of the housing are received by the recesses of the locking pieces of the cover and become the locking holes of the locking pieces. It is a figure for demonstrating the state of being guided. 8 (a) is a sectional view taken along the line BB of FIG. 4 (b), and FIG. 8 (b) is an enlarged view of a portion D of FIG. 8 (a). 9 (a) and 9 (b) are views for explaining a process of forming a liquid-tight portion formed by abutting the rib and the receiving portion. 10 (a) is a right side view showing a state when the cover is attached to the housing, and FIG. 10 (b) is a right side view showing a state in which the cover is attached to the housing is completed.

<Embodiment>
Hereinafter, the electric wire 1 with a connector including the connector 6 according to the 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 or the like constituting 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.

Hereinafter, for convenience of explanation, as shown in the drawings, "front-back direction", "left-right direction", "vertical direction", "front", "rear", "left", "right", "top", and "bottom" Is defined. The "front-back direction", "left-right direction", and "vertical direction" are orthogonal to each other. The front-rear direction coincides with the direction in which the housing 4 is fitted with the mating side connector (not shown), and the front side (upper right side in FIG. 2) in the fitting direction in which the mating side connector is fitted is the front side. The back side (lower left side in FIG. 2) in the opposite mating direction is the rear side.

As shown in FIG. 2, the electric wire 1 with a connector shown in FIG. 1 includes an electric wire 2, a terminal fitting 3 attached to the electric wire 2, a housing 4 to which the terminal fitting 3 is fastened and fixed, and a cover 5 attached to the housing 4. And. The housing 4 and the cover 5 constitute the connector 6 according to the embodiment of the present invention. Hereinafter, the parts constituting the electric wire 1 with a connector will be described in order.

First, the electric wire 2 will be described. As shown in FIGS. 2 and 4A, the electric wire 2 is composed of a conductor core wire 11 and a resin coating 12 covering the conductor core wire 11. The terminal portion of the electric wire 2 is subjected to a predetermined terminal treatment to remove the resin coating 12 and expose the conductor core wire 11. The electric wire 2 is typically used after being grounded.

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

Next, the housing 4 will be described. As shown in FIG. 2, the resin housing 4 includes a main body portion 31, a connector fitting portion 32 located on the front side of the main body portion 31, and a cover mounting portion 33 located on the rear side of the main body portion 31. Prepare for one. Inside the main body 31, a plurality of (two in this example) 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 at the rear end portion of the cylindrical portion, the main body portion 31 protrudes radially outward of the cylindrical portion with a predetermined shape. It has a flange portion 34. A plurality of bolt holes 35 penetrating in the front-rear direction are formed in the flange portion 34.

The main body 31 is typically a bolt (not shown) in which a cylindrical portion of the main body 31 is inserted into a circular opening (not shown) of the housing of a vehicle transmission and inserted into a bolt hole 35 (not shown). By fastening and fixing the flange portion 34 to the housing using the above, the flange portion 34 is fixed to the housing. In the state where the main body portion 31 is fixed to the housing, the connector fitting portion 32 (that is, the mating connector to be fitted to the connector fitting portion 32) is located in the air, and the cover mounting portion 33 is located. (That is, the cover 5 to be attached to the cover attachment portion 33) is 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 forward. The mating connector is inserted into the connector fitting portion 32 and fitted. As a result, the mating terminal (not shown) housed in the mating connector and the exposed portion (not shown) in the internal space of the connector fitting portion 32 of the bus bar 7 are electrically connected. As a result, the mating side electric wire (not shown) connected to the mating side terminal and the bus bar 7 built in the housing 4 are electrically connected.

The cover mounting portion 33 is a portion where the terminal fitting 3 is fastened and fixed, and is also a portion where the cover 5 is mounted. In the cover mounting portion 33, as shown in FIGS. 2 and 3, the fastened portion 7a, which is the rear end portion of the two bus bars 7, protrudes rearward from the main body portion 31 at a predetermined interval in the vertical direction. It is exposed to. 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 behind the fastened portion 7a of the upper bus bar 7. In other words, the two fastened portions 7a are arranged so as to be offset from each other in the front-rear direction when viewed from the vertical direction.

As shown in FIG. 8, the cover mounting portion 33 has two storage chambers for accommodating the two fastened portions 7a in cooperation with the cover 5 in a state where the cover 5 is attached to the cover mounting portion 33. It has a shape that defines 36 so as to be arranged in the vertical direction. As a part of the partition wall that vertically separates the two storage chambers 36 composed of the cover mounting portion 33 and the cover 5, the cover mounting portion 33 is located on the upper side as shown in FIGS. 2 and 3. 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 extends in the left-right direction and extends rearward.

As shown in FIGS. 3, 8 (b) and 9 (a), the upper corners of the rear end surface of the partition wall 37 are recessed forward and downward in the rear end surface of the partition wall 37 (as a result, of the partition wall 37). The receiving portion 38 is formed so that the rear end surface has a stepped shape). That is, the receiving portion 38 is a recess 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 plane 38a which is a rectangular plane extending in the vertical direction and extending in the horizontal direction, and a rectangular plane extending rearward and extending in the horizontal direction from the lower end edge of the vertical plane 38a. It is defined by the horizontal plane 38b. The receiving portion 38 defines the liquid-tight portion 9a (see FIGS. 8 (b) and 9 (b)) in cooperation with the rib 53 described later of the cover 5.

As shown in FIG. 3, the cover mounting portion 33 has a shape that defines the nut mounting portion 39 on the lower side of each fastened portion 7a. Each nut installation portion 39 is a space for mounting a nut 63 (see FIG. 2) used for fastening and fixing the terminal portion 21 of the terminal fitting 3 to the corresponding fastened portion 7a, and is open to the rear. Moreover, it faces the lower surface of the corresponding fastened portion 7a. The partition wall 37 of the cover mounting portion 33 also serves as a wall defining the lower end of the upper nut mounting portion 39 of the two nut mounting portions 39.

As shown in FIG. 2, the cover mounting portion 33 is provided with a flat plate-shaped guide piece 41 that extends laterally and extends rearward from the main body portion 31 at a position above the upper fastened portion 7a. A locking projection 41a projecting upward is formed on the upper surface of the guide piece 41. At the right position of the pair of upper and lower fastened portions 7a, a flat plate-shaped guide piece 42 that extends in the vertical direction and extends rearward from the main body portion 31 is provided. A locking projection 42a projecting to the right is formed on the right surface of the guide piece 42. At the left position of the lower fastened portion 7a, a flat plate-shaped guide piece 47 extending in the left-right direction and extending rearward from the main body portion 31 is provided. A locking projection (not shown) protruding downward is formed on the lower surface of the guide piece 47.

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

Further, as shown in FIGS. 2 and 3, a pair of left and right side walls defining the left and right ends of the lower nut installation portion 39 are recessed inward in the left-right direction and extended in the front-rear direction. The guide groove 43 is provided. The guide pieces 41, 42, 47 and the guide groove 43 exhibit a function of guiding the cover 5 when the cover 5 is attached to the cover attachment portion 33 and fixing the cover 5 to the cover attachment portion 33.

As shown in FIG. 2, a pair of ridges protruding rearward are attached to the cover mounting portion 33 at a position to the right of the guide piece 41 at a certain distance from each other, and a casing to be described later of the cover 5 is attached. It extends following the shape of a part of the peripheral portion of the front end opening of the body portion 51 in the circumferential direction. As a result, between the pair of ridges, a groove portion 48 extending along the shape of the partial portion in the circumferential direction at the peripheral edge of the front end opening of the cover 5 is defined. A rib 59 (see FIG. 6A), which will be described later, of the cover 5 meshes with the groove portion 48.

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

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

Next, the cover 5 will be described. As shown in FIG. 6A, the resin cover 5 has a substantially rectangular parallelepiped box-shaped housing portion 51 that opens forward and downward. In the internal space of the housing portion 51, a flat plate-shaped partition wall 52 extending in the left-right direction and extending forward from the inner surface of the rear wall portion of the housing portion 51 is formed. On the front end surface of the partition wall 52, a rib 53 that protrudes forward and expands in the left-right direction is formed corresponding to the receiving portion 38 (see FIG. 3) of the housing 4.

More specifically, as shown in FIG. 9A, the front end surface of the partition wall 52 is formed with a recess 71 having a substantially U-shaped cross section that is recessed rearward and extends in the left-right direction. The rib 53 is composed of a plate-shaped portion 72 and a connecting portion 73. The plate-shaped portion 72 is a rectangular flat plate-shaped portion that extends in the front-rear direction and extends in the left-right direction. The connecting portion 73 is a portion that extends in the vertical direction and extends in the horizontal 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 extending in the vertical direction and expanding in the horizontal direction is secured between the connecting portion 73 and the bottom surface 71a of the recess 71. The connecting portion 73 can be elastically deformed so as to be tilted backward (so as to narrow the gap R) (see FIG. 9B).

The plate-shaped portion 72 of the rib 53 projects forward from the front end surface of the partition wall 52, and has a thickness and a protruding length sufficient to enter the receiving portion 38 of the housing 4. Each of the front end surface (tip surface) 72a and the rear end surface 72b (base end surface) of the plate-shaped portion 72 is a plane extending in the vertical direction and extending in the left-right direction, and the lower surface 72c of the plate-shaped 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 recessed downward and extends in the left-right direction is formed in the central portion in the front-rear direction away from the front end surface 72a on the upper surface of the plate-shaped portion 72.

The partition wall 52 is provided at a position corresponding to the partition wall 37 (see FIG. 3) of the housing 4, and when the cover 5 is attached to the housing 4 in a completed state, the two storage chambers 36 are moved up and down like the partition wall 37. Acts as part of the separating bulkhead. 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 accommodating the upper fastened portion 7a, and the partition wall 52 is formed. The lower region constitutes a part of the accommodation chamber 36 that accommodates the lower fastened portion 7a.

The left wall portion 51a of the housing portion 51 is formed with a pair of upper and lower electric wire drawing portions 54 that are opened 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 lead-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 (left side).

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

As shown in FIGS. 6A and 10A, 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 position where it can be visually recognized (particularly, see FIG. 10 (a)). This is because the locking hole 56a is used as a hole for inserting a dedicated mold for forming a gap R at the time of molding the housing 4.

As shown in FIGS. 6 (b) and 6 (c), the lower surface of the front end edge portion extending in the left-right direction of the locking piece 55 (with the locking projection 41a of the guide piece 41 when the cover 5 is attached to the housing 4). On the facing plate surfaces), a recess 55b is formed which is recessed upward (in a direction away from the locking projection 41a) and extends in the front-rear direction of the front end edge portion and is connected to the locking hole 55a. The pair of side end faces 55c defining the left-right end edges of the recess 55b gradually widen in the left-right direction w (see FIG. 6B) as the recess 55b moves forward (away from the locking hole 55a). 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 equal to or larger than the width of the locking projection 41a in the left-right direction. The recess 55b serves a function of accepting the locking projection 41a and guiding 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 portion 48 of the housing 4 (FIG. 2) is formed in a part in the circumferential direction including the boundary portion between the upper wall portion 51b and the right wall portion 51c at the peripheral edge of the front end opening of the housing portion 51. Corresponding to (see), ribs 59 are formed that project forward and extend in conformity with the shape of the portion of the peripheral edge in the circumferential direction. The parts constituting the electric wire 1 with a connector have been described above in order.

Next, the procedure for assembling the electric wire 1 with the connector will be described. First, a rubber rectangular frame-shaped packing 64 (see FIG. 2) is attached at a predetermined position in the internal space of the connector fitting portion 32 of the housing 4 (see FIG. 8A), 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 31 of the housing 4 (see FIG. 8A).

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. 4A). Therefore, first, the nut 63 is inserted into each nut mounting portion 39 of the housing 4 from the rear. As a result, each nut 63 is installed in the nut installation portion 39 so as not to rotate 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 placed on the terminal portion from above. It is inserted into the bolt holes of 21 and the fastened portion 7a, and meshes with the nut 63 located below the fastened portion 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 in a state of facing the normal position.

At this time, due to the fact that the two fastened portions 7a are arranged so as to be offset from each other in the front-rear direction, when the bolt 61 is fastened to the fastened portion 7a, it is fastened to one fastened portion 7a. The bolt 61 is unlikely to interfere with the fastening work to the other fastened portion 7a. From the 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 fastening direction of the bolt 61 (rotational direction in which the bolt 61 is tightened) is a clockwise direction (clockwise direction) when viewed from above. When each terminal fitting 3 is in the normal position, as shown in FIG. 4A, each terminal fitting 3 extends to the left from the terminal portion 21 (fastened portion 7a), so that the terminal fitting 3 is attached to each terminal fitting 3. The connected electric wire 2 also extends to the left.

Next, the cover 5 is attached to the cover attachment portion 33 of the housing 4 so as to cover the connection portion of each terminal fitting 3. Therefore, the cover 5 is brought closer to the cover mounting portion 33 from the rear (see FIG. 4A). Then, the pair of electric wires 2 enter the pair of electric wire extraction 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 face each other in the front-rear direction and approach each other. In addition, the guide piece 41, the guide piece 42, and the guide piece 47 of the cover mounting portion 33, the inner surface of the upper wall portion 51b of the housing portion 51 of the cover 5, the inner surface of the right wall portion 51c of the housing portion 51, and The inner surface of the lower wall portion 51d of the housing portion 51 is guided, and the pair of guide ribs 57 of the housing portion 51 slide while engaging with the pair of guide grooves 43 of the cover mounting portion 33. In addition, the cover 5 is moved forward with respect to the cover mounting portion 33.

For the forward movement of the cover 5, the mounting complete position where the front end surface of the housing portion 51 abuts on the rear end surface of the main body portion 31 (more specifically, the flange portion 34) of the housing portion 51 (see FIG. 4B). It continues until the cover 5 reaches. Immediately before the cover 5 reaches the mounting completion position, the front end edges of the locking pieces 55, 56, 58 of the cover 5 are engaged with the locking projections 41a, 42a of the guide pieces 41, 42 and the guide piece 47, respectively. By riding on 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, particularly with respect to the locking piece 55, the recess 55b (see FIG. 6B and the like) formed on the lower surface of the front end edge portion of the locking piece 55 is locked in a state of receiving the locking projection 41a. The front end edge portion of the piece 55 rides on the locking projection 41a (see FIGS. 7 (a) and 7 (b)). The effect of this will be described later.

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

After the time when 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 connected to the rib 53 by the backward pressing force received from the vertical surface 38a. Is elastically deformed so as to tilt backward. When the connecting portion 73 tilts backward, the upper end portion of the connecting portion 73 slides backward and downward (relative to the partition wall 52). Along with this, the plate-shaped portion 72 also slides backward and downward (relative to the partition wall 52) (see the two thin white arrows in FIG. 9B). As the movement of the cover 5 progresses, the amount of elastic deformation of the connecting portion 73 (that is, the backward tilt angle of the connecting portion 73) increases. Along with this, the amount of slide of the plate-shaped portion 72 backward and downward (relative to the partition wall 52) increases, and as a result, the gap R and the gap S also gradually decrease.

When the cover 5 moves to the mounting complete position, each of the front end edges of the locking pieces 55, 56, 58 gets over the corresponding locking projection, so that each of the locking pieces 55, 56, 58 corresponds to the locking. Elastically returns in the direction approaching the protrusion. As a result, the locking projections corresponding to the locking holes 55a, 56a, 58a of the locking pieces 55, 56, 58 enter, so that the locking projections corresponding to each of the locking holes 55a, 56a, 58a enter. Locked to (see FIG. 1). As a result, the attachment of the cover 5 is completed, the cover 5 is held at the attachment completion position, and the cover 5 is prevented from being separated from the housing 4.

In the mounted state of the cover 5, as shown in FIG. 9B, 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. Further, the gap R between the rear end surface 72b of the plate-shaped portion 72 of the rib 53 and the bottom surface 71a of the recess 71 disappears, and the rear end surface 72b and the bottom surface 71a are in pressure contact with each other. As a result, the front end surface 72a of the plate-shaped portion 72 is more firmly pressed by the vertical surface 38a of the receiving portion 38 by the forward pressing force received by the plate-shaped portion 72 from the bottom surface 71a. Further, the gap S between the lower surface 72c of the plate-shaped portion 72 and the horizontal plane 38b of the receiving portion 38 disappears, and the lower surface 72c and the horizontal plane 38b are in surface contact with each other. In this way, 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 with each other, and 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. The liquidtight portion 9a is configured.

The liquidtight portion 9a configured as described above has a labyrinth structure that lengthens the entry path (so-called creepage distance) of water that tries to pass between the partition walls 52 and 37, and exhibits an excellent liquidtight function. .. It should be noted 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 with each other over the entire facing region (that is, they are arranged so as to be in perfect contact with each other). Although suitable, they may be arranged in close contact (face contact) in one part of the facing region and at intervals in the other part. It is preferable that the lower surface 72c of the plate-shaped portion 72 and the horizontal plane 38b of the receiving portion 38 are in surface contact with each other over the entire facing region (that is, arranged so as to be in perfect contact with each other). , It may be in close contact (face contact) in one part of the face-to-face region and may be arranged at intervals in the other part, or sufficiently to suppress the movement of liquid such as oil over the entire face-to-face region. They may be arranged at small intervals. That is, the degree of contact between the receiving portion 38 and the rib 53 is not particularly limited as long as the liquidtight portion 9a can exhibit the desired liquidtight performance.

When a liquid such as water or oil comes into contact with the liquidtight portion 9a in a state where the liquidtight portion 9a is configured, the liquid enters toward the groove portion 72d formed on the upper surface of the plate-shaped portion 72 of the rib 53. Will be guided to. As a result, it is possible to prevent the liquid from staying in the vicinity of 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 are in surface contact with each other. Therefore, the liquidtightness between the rib 53 and the receiving portion 38 can be further improved.

As shown in FIG. 9B, when 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, there is a dimensional manufacturing tolerance (so-called manufacturing variation) of the rib 53 and the receiving portion 38. The distance between the vertical surface 38a of the receiving portion 38 and the bottom surface 71a of the recess 71 in the front-rear direction is the length in the front-rear direction of the plate-shaped portion 72 (the distance between the front end surface 72a and the rear end surface 72b). ) May be slightly shorter. In this case, this dimensional difference can be absorbed by bending the portion of the plate-shaped portion 72 that defines the bottom surface of the groove portion 72d having the smallest plate thickness (the smallest rigidity) so as to bulge downward. ing.

Further, when the cover 5 is completely attached, the rib 59 of the cover 5 and the groove portion 48 of the housing 4 are in contact with each other so as to mesh with each other to form the liquidtight portion 9b (see FIG. 8A). 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. In the liquid-tight portion 9b, the rib 59 has a groove portion in a state where the pair of side wall outer surfaces of the rib 59 and the pair of side wall inner surfaces of the groove portion 48 face each other, and the front end surface of the rib 59 and the bottom surface of the groove portion 48 face each other. It is configured by being placed in 48 recesses.

The liquidtight portion 9b configured as described above has a labyrinth structure that lengthens the entry path (so-called creepage distance) of water that tries to pass between the rib 59 and the groove portion 48, and has an excellent liquidtight function. Demonstrate. 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 on either side so as to be in complete contact with each other, such as oil through the liquidtight portion 9b. The liquids may be arranged at intervals small enough to suppress the movement of the liquid, or they may be arranged in close contact with each other in one part and at intervals in another part. The positional relationship between the front end surface of the rib 59 and the bottom surface of the groove 48 is the same. That is, the degree of contact between the groove portion 48 and the rib 59 is not particularly limited as long as the liquidtight portion 9b can exhibit the desired liquidtight performance.

In the mounted state of the cover 5, as shown in FIG. 10B, the entire locking hole 56a of the locking piece 56 is closed by the land portion 42b of the guide piece 42. 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, just before the cover 5 reaches the mounting completion position, with respect to the locking piece 55, as shown in FIGS. 7A and 7B, the recess 55b receives the locking projection 41a. The operation of the front end edge portion of the locking piece 55 riding on the locking projection 41a will be described.

As shown in FIG. 5A, a locking mechanism including a locking projection 42a and a locking piece 56 is provided on the right side surface of the housing 4 and the cover 5. On the other hand, as shown in FIG. 5B, a space for pulling out the electric wire 2 to the outside (left side) is required on the left side surface, so that there is little spare space for providing the lock mechanism. Therefore, the lock mechanism is not provided on the left side surface.

Therefore, the front end edges of the locking pieces 55, 56, 58 of the cover 5 ride on the corresponding locking projections (that is, from the corresponding locking projections of the locking pieces 55, 56, 58, respectively). In the state of being temporarily elastically deformed in the distant direction), as shown in FIGS. 7 (a) and 7 (b), due to the rightward force received by the locking piece 56 from the locking projection 42a in the left-right direction. In addition, the cover 5 (that is, the locking piece 55) tends to be displaced to the right from the normal position with respect to the housing 4 (that is, the locking projection 41a). In the vertical direction, the cover 5 is offset by the upward force received by the locking piece 55 from the locking projection 41a and the downward force received by the locking piece 58 from the corresponding locking projection. Positional deviation from the normal position to the housing 4 in either the vertical direction is unlikely to occur.

When the cover 5 approaches the mounting complete position while the position where the cover 5 is displaced to the right from the normal position with respect to the housing 4 is maintained, the rib 53 interferes with the opening edge of the receiving portion 38. A situation may occur in which the rib 53 cannot enter the receiving portion 38, and a situation may occur in which the rib 59 interferes with the opening edge portion 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 to the right from the normal position with respect to the housing 4, the locking projection 41a is recessed as shown by an arrow in FIG. 7B. In the process of moving toward the locking hole 55a while being guided by the inclined side end surface 55c of 55b, the positional displacement is gradually reduced. Then, when the cover 5 reaches the mounting completion position, as shown in FIG. 7C, the misalignment is eliminated, and the locking projection 41a is surely inserted into the locking hole 55a to lock the cover 5. Can be made to. As a result, the rib 53 can be reliably entered into the receiving portion 38 to form the liquidtight portion 9a, and the rib 59 can be surely entered into the groove portion 48 to form the liquidtight portion 9b. Therefore, the housing 4 can be formed. The work of attaching the cover 5 to the cover 5 becomes easy.

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

Further, in the present 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 projection 41a in the left-right direction. In other words, as shown in FIG. 7C, the locking piece 55 is engaged with respect to the locking projection 41a (that is, the housing 4) in a state where the locking projection 41a is locked in the locking hole 55a. (That is, the cover 5) is slightly movable in the left-right direction. Therefore, the cover 5 can be interlocked with the shaking of the electric wire 2 when the electric wire 1 with the connector is mounted on the vehicle, so that the electric wire 2 is in pressure contact with the electric wire extraction portion 54 of the cover 5, and the electric wire 2 is damaged. Attachment can be suppressed. Further, by moving the cover 5 relative to the housing 4, each part of the rib 53 and the receiving portion 38, and each part of the rib 59 and the groove portion 48 can be brought into close contact with each other. The movement of liquids such as oil through the liquidtight portions 9a and 9b can be suppressed more reliably.

As a result, 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.

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 bolt 61 floating upward due to incomplete fastening, the rib 53 of the partition wall 52 of the cover 5 interferes with the lower bolt 61. As a result, the cover 5 cannot be moved to the mounting complete position. Therefore, by detecting that the cover 5 cannot be moved to the mounting complete position, it is possible to detect that the lower bolt 61 is in an upward floating state due to incomplete fastening.

In the mounted state of the cover 5, the electric wire 2 extends from the electric wire drawing portion 54 of the cover 5. Therefore, even if the terminal fitting 3 after fastening and fixing unintentionally tries to rotate from the normal position in the loosening direction (rotational direction in which the bolt 61 is loosened, counterclockwise direction (counterclockwise direction) when viewed from above), the electric wire When the 2 comes into contact with the trailing edge portion of the electric wire lead-out portion 54, the rotation of the terminal fitting 3 can be suppressed.

The completed electric wire 1 with a connector shown in FIG. 1 is attached to the housing of the transmission of the vehicle, and the mating connector is inserted and fitted into the connector fitting portion 32. As a result, 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 side electric wire connected to the mating side terminal of the mating side connector and the electric wire 2 connected to the terminal fitting 3 are electrically connected via the bus bar 7 built in the housing 4. The electric wire 2 is grounded at a predetermined earth point of the vehicle. As a result, the other side electric wire electrically connected to the electric wire 2 is also grounded.

When the electric wire 1 with the connector is attached to the housing of the transmission of the vehicle, the cover attachment portion 33 (that is, 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 mounting portion 33 is also exposed to the lubricating oil. By attaching the cover 5 to the housing 4, it is possible to prevent the metal powder in the lubricating oil 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 1 with a connector according to the present embodiment, by attaching the cover 5 to the housing 4, a plurality of storage chambers 36 are defined between the housing 4 and the cover 5. .. In each of the plurality of storage chambers 36, the fastened portion 7a of the bus bar 7 (that is, the fastening point between the bus bar 7 and the bolt 61) is housed. Further, the partition walls 37 and 52 of the accommodation chamber 36 located between the fastened portion 7a of one of the bus bars 7 and the other fastened portions 7a have ribs 53 of the cover 5 and receiving portions 38 of the housing 4. A liquid-tight portion 9a is provided, which is formed by abutting against each other. The liquidtight portion 9a has a structure (so-called labyrinth structure) that lengthens the entry path (so-called creepage distance) of a liquid such as water or oil that tries to pass through the partition walls 37 and 52, and has an excellent liquidtight function. Demonstrate. As a result, even when the connector 6 is used in a general usage environment, the connector 6 is used in a harsh environment where the connector 6 is exposed to water, oil, or the like (for example, in the lubricating oil of a transmission). Even in this case, the bus bars 7 can be properly electrically isolated from each other.

Further, when the cover 5 is attached to the housing 4, the tip surface 72a of the rib 53 (plate-shaped portion 72) is pressed in a state of being in surface contact with the vertical surface 38a of the receiving portion 38 to form the liquidtight portion 9a. do. Therefore, even if there is a large manufacturing tolerance (so-called manufacturing variation) in the dimensions of the rib 53 and the receiving portion 38, or if there is a positional deviation (so-called rattling) between the housing 4 and the cover 5, the ribs are ribbed. It is possible to prevent an excessive gap from being generated between the 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 a bolt 61, it is possible to suppress an unintended short circuit between the bus bars 7. Further, the connector 6 according to the present embodiment can be easily attached to the housing 4 and the cover 5, and can suppress the positional deviation between the two after the attachment.

Further, 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-shaped portion 72 constituting 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 recess 71 of the cover 5 while deforming in a direction away from the portion 38 (rearward). As a result, the front end surface 72a of the rib 53 (plate-shaped portion 72) is more firmly pressed against the vertical surface 38a of the receiving portion 38. This makes it possible to further improve the liquidtightness between the rib 53 and the receiving portion 38. Further, as the connecting portion 73 is deformed (that is, the connecting portion 73 is tilted), the plate-shaped portion 72 slides in a direction orthogonal to the mounting direction of the cover (downward), so that the sliding plate By bringing the lower surface 72c of the shaped portion 72 into contact with the horizontal plane 38b of the receiving portion 38, the liquidtightness performance can be further improved.

Further, according to the connector 6 according to the present embodiment, the plate-shaped portion 72 of the rib 53 has a groove portion 72d at a position away from the front end surface 72a. As a result, when a liquid such as water or oil actually comes into contact with the liquidtight portion 9a, the liquid is guided toward the groove portion 72d so that the front end surface 72a of the rib 53 becomes the vertical surface of the receiving portion 38. It is suppressed that the liquid stays in the vicinity of the contact portion that comes into surface contact with 38a. Therefore, the connector 6 according to the present embodiment can further improve the liquidtightness between the rib 53 and the receiving portion 38.

<Other forms>
The present invention is not limited to each of 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 above-described embodiment, and can be appropriately modified, improved, and the like. In addition, the material, shape, dimensions, number, arrangement location, etc. of each component in the above-described embodiment are arbitrary as long as the present invention can be achieved, and are not limited.

In the above embodiment, the connecting portion 73 of the rib 53 extends in the vertical direction so as to connect the rear end portion of the plate-shaped 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-shaped portion 72 of the rib 53 excluding both ends in the front-rear direction and the lower inner wall surface 71b of the recess 71. May be good.

Further, in the above embodiment, when the cover is completely attached, the front end surface 72a of the plate-shaped portion 72 and the vertical surface 38a of the receiving portion 38 are in pressure contact with each other, and the rear end surface 72b of the plate-shaped portion 72 and the recess 71 are formed. It is in pressure contact with the bottom surface 71a (see FIG. 9B). On the other hand, as long as the front end surface 72a of the plate-shaped portion 72 and the vertical surface 38a of the receiving portion 38 are in pressure contact with each other in the state where the cover is attached, the rear end surface 72b of the plate-shaped portion 72 and the bottom surface of the recess 71 are in contact with each other. It may be separated from 71a.

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

Further, in the above embodiment, as shown in FIG. 9A and the like, the receiving portion 38 has a stepped rear end surface of the partition wall 37 so that the upper corner portion of the rear end surface of the partition wall 37 is recessed forward (as a result, the rear end surface of the partition wall 37 is stepped). (To have a shape), it is formed on the rear end surface of the partition wall 37. Therefore, when the plate-shaped portion 72 of the rib 53 meshes 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-shaped portion 72 are covered with the receiving portion 38. On the other hand, the upper surface of the plate-shaped portion 72 is exposed in 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 liquidtightness performance of the liquidtight portion 9a, the receiving portion 38 has a shape that covers the upper surface in addition to the front end surface 72a and the lower surface 72c of the plate-shaped portion 72. For example, it may have a concave shape). On the contrary, the partition wall 52 may be configured so as to have a shape in which the upper surface is open like the receiving portion 38 without providing the recess 71 at the tip portion of the partition wall 52, and the plate-shaped portion 72 may be provided at the tip portion thereof. .. That is, as long as the liquidtight portion 9a can exhibit the desired liquidtight performance, the specific shapes of the receiving portion 38 and the rib 53 are not particularly limited.

As for the liquidtight portion 9b, the groove portion 48 may be formed of a plurality of recesses, the rib 59 may be formed of a plurality of protrusions, and the ribs 59 may be engaged with each other to form the liquidtight portion 9b. That is, as long as the liquidtight portion 9b can exhibit the desired liquidtight performance, the specific shapes of the groove portion 48 and the rib 59 are not particularly limited.

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

Here, the features of the above-mentioned embodiments of the connector 6 according to the present invention are briefly summarized and listed below in [1] to [3], respectively.
[1]
A connector (6) including a plurality of terminals (7), a housing (4) for holding the plurality of terminals (7), and a cover (5) attached to the housing (4).
Each of the plurality of terminals (7)
It has a fastened portion (7a) to which the terminal fitting (3) can be connected by fastening with a bolt (61).
Each of the fastened portions (7a)
It is housed in each of the plurality of storage chambers (36) defined between the housing (4) and the cover (5).
The partition wall (37, 52) of the accommodation chamber (36) located between one said fastened portion (7a) and the other said fastened portion (7a)
The partition wall (37, 52) is formed by contacting the rib (53) of one (5) of the housing and the cover with the receiving portion (38) of the other (4). ) In at least part of
The rib (53) is
The tip surface (72a) of the rib (53) is pressed against the receiving portion (38) in a state of being in surface contact with the receiving portion (38).
Connector (6).
[2]
In the connector (6) described in the above [1],
The rib (53) is
A plate-shaped portion (72) having a 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-shaped portion (72). It has a connecting portion (73) that connects a predetermined portion between the (72b) and the housing provided with the rib (53) and the one (5) of the cover.
When the tip surface (72a) is pressed against the receiving portion (38),
The connecting portion (73) is deformed in a direction away from the receiving portion (38), and the proximal end surface (72b) is pressed against the housing provided with the rib (53) and the one (5) of the cover. ,
Connector (6).
[3]
In the connector (6) described in the above [2],
The plate-shaped portion (72) of the rib (53) is
A groove portion (72d) recessed in the thickness direction of the plate-shaped portion (72) is provided at a position away from the tip surface (72a).
Connector (6).

3 Terminal bracket 4 Housing 5 Cover 6 Connector 7 Bus bar (terminal)
7a Fastened part 9a Liquidtight part 36 Storage chamber 37 Partition 38 Receiving part 52 Partition 53 Rib 61 Bolt 72 Plate-shaped part 72a Front end surface (tip surface)
72b Rear end face (base end face)
72d groove 73 connecting part

Claims (3)

A connector comprising a plurality of terminals, a housing for holding the plurality of terminals, and a cover attached to the housing.
Each of the plurality of terminals
It has a fastened part to which terminal fittings can be connected by fastening with bolts.
Each of the fastened portions
It is housed in each of the plurality of storage chambers defined between the housing and the cover.
The partition wall of the accommodation chamber located between one said portion to be fastened and the other said portion to be fastened is
At least a part of the partition wall has a liquid-tight portion formed by contacting the rib of one of the housing and the cover with the receiving portion of the other.
The rib is
The tip surface of the rib is pressed against the receiving portion in a state of being in surface contact with the receiving portion.
connector. In the connector according to claim 1,
The rib is
A plate-shaped portion having a tip surface and a proximal end surface different from the distal end surface, a predetermined portion between the distal end surface and the proximal end surface of the plate-shaped portion, and a housing and a cover provided with the rib. It has a connecting portion that connects one of the above, and
When the tip surface is pressed against the receiving portion
The connecting portion is deformed in a direction away from the receiving portion, and the base end surface is pressed against the housing provided with the rib and the one of the cover.
connector. In the connector according to claim 2,
The plate-shaped portion of the rib
A groove portion that is recessed in the thickness direction of the plate-shaped portion is provided at a position away from the tip surface.
connector.

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