JP5872835B2 - Double locking connector - Google Patents

Description

  The present invention relates to a double-locking connector in which a terminal fitting mounted in a terminal receiving hole of a connector housing is double-locked by a spacer inserted and mounted in the connector housing.

  Various types of double-locking connectors have been developed in which a terminal fitting mounted in a terminal housing hole of a connector housing is double-locked by a spacer inserted and mounted in the connector housing.

  In such a double-locking connector, the spacer mounted on the connector housing can be positioned at two positions, the temporary locking position and the main locking position, by engaging with the spacer locking means provided on the connector housing side. To be.

  Here, the temporary locking position is a position where the terminal fitting is allowed to be attached to and detached from the terminal receiving hole of the connector housing. Further, the final locking position is a position where the spacer is further pushed into the housing from the temporary locking position, and a part of the spacer is engaged with the terminal fitting to prevent the terminal fitting from coming off. A typical connector housing includes a lance that engages with the inserted terminal fitting and prevents the terminal fitting from coming off in the terminal receiving hole.

  The double-locking connector double-stops the terminal fitting inserted and mounted in the terminal housing hole of the connector housing with the lance in the housing and the spacer.

FIG. 10 shows a double locking connector disclosed in Patent Document 1 below.
The double locking connector 100 includes a plurality of terminal fittings 110 connected to the end of the electric wire 108, a connector housing 120 into which the plurality of terminal fittings 110 are inserted and mounted, and a spacer mounted on the connector housing 120. 130.

  The connector housing 120 includes a plurality of terminal housing holes 121 into which the terminal fittings 110 are inserted and mounted, a spacer housing space 122 that crosses the terminal housing holes 121, and a spacer unit (not shown) that is provided at a position facing the spacer housing space 122. Stopping means.

  The spacer accommodating space 122 is provided on the outer side surface 120a on one side of the connector housing 120 so that the spacer 130 can be inserted, so that the spacer 130 can be inserted.

  The spacer 130 includes an isolation wall piece 131, a temporary locking projection 132, a final locking projection 133, and a terminal engaging portion 134.

  When the spacer 130 is inserted into the spacer housing space 122, the separating wall piece 131 is formed between the terminal housing holes 121 instead of the separating wall 123 that separates the terminal housing holes 121 adjacent to each other in the connector housing 120. It is a convex piece that isolates.

  The temporary locking protrusion 132 is a protrusion protruding from the lower end side of the front end surface of the outer side walls 135 of the spacer 130. The temporary locking protrusion 132 engages with the above-described spacer locking means when the spacer 130 is moved to the temporary locking position by the insertion operation into the spacer accommodating space 122, and the insertion direction of the spacer 130 (FIG. 10). In the direction of arrow Y1).

  The main locking protrusion 133 is a protrusion that protrudes from an intermediate portion of the rear end surface of both outer walls 135 of the spacer 130. The main locking protrusion 133 engages with the above-described spacer locking means when the spacer 130 moves to the main locking position, and restricts the movement of the spacer 130 in the insertion direction.

  That is, the spacer 130 is inserted into the spacer accommodating space 122 by the insertion operation in the direction indicated by the arrow Y1 in FIG. 10, and the spacer 130 is placed at the two positions of the temporary locking position and the main locking position shifted in the insertion direction. Positioning is possible by locking means (not shown).

  The terminal engaging portion 134 engages with the locking piece 112 of the terminal fitting 110 received in the terminal receiving hole 121 when the spacer 130 inserted in the spacer receiving space 122 moves to the final locking position. Thus, the terminal fitting is locked to prevent the terminal fitting 110 from coming off.

  The terminal fitting 110 mounted in the terminal receiving hole 121 is divided into two parts by locking by a retaining lance (not shown) provided in the terminal receiving hole 121 and locking by the terminal engaging portion 134 described above. It will be in the state locked heavily.

  By the way, the temporary locking protrusion 132 provided on the spacer 130 is a spacer on the connector housing 120 side when moving from the temporary locking position to the final locking position and when returning from the final locking position to the temporary locking position. Get over the locking means. Therefore, if the movement between the temporary locking position and the final locking position is repeated, the temporary locking protrusion 132 may be damaged due to friction with the spacer locking means on the connector housing 120 side.

  Since the spacer 130 in Patent Document 1 has no means for fixing the spacer 130 in the temporary locking position when the temporary locking protrusion 132 is damaged, when the spacer 130 is returned to the temporary locking position, the spacer 130 There is a risk that the connector housing 120 may accidentally fall off.

  In addition, in the case of the double locking connector 100 in Patent Document 1, there is little change in appearance when the spacer 130 is moved from the temporary locking position to the final locking position, and the spacer 130 is appropriately moved to the final locking position. There is also a problem that it cannot be easily visually discriminated.

  On the other hand, Patent Document 2 below discloses a double-locking connector that can avoid the disadvantages of Patent Document 1 described above.

  Specifically, the spacer in the double locking connector disclosed in Patent Document 2 is inserted between the isolation walls (corresponding to the isolation wall piece 131 in FIG. 10) inserted between adjacent terminal receiving holes of the connector housing. The openings are connected by a connecting wall extending in a direction orthogonal to the direction, and the openings through which the terminal fittings are inserted are arranged in a lattice pattern.

  In such a spacer structure, even if the spacer locking means on the connector housing side cannot fix the spacer to the temporary locking position due to the damage of the temporary locking projection, the spacer separating walls are connected to each other. Since the connecting wall is caught by the terminal fitting accommodated in the connector housing, it is possible to prevent the spacer from being inadvertently dropped from the connector housing.

  Further, in the case of the double locking connector disclosed in Patent Document 2 below, the spacer housing space provided in the connector housing is formed so as to penetrate from one side of the connector housing to the other side. When the spacer inserted into the spacer housing space is moved to the final locking position, the connecting wall on the distal end side of the spacer is fitted into the opening on the other side of the spacer housing space in the connector housing, and the temporary engagement is established. The structure is such that the opening that has been opened in the stopped state changes to a closed state in the fully locked state. Therefore, by visually checking whether the opening on the other side of the connector housing is closed by the connecting wall at the tip of the spacer, it is possible to easily visually determine whether the spacer has been properly moved to the final locking position. it can.

JP-A-7-73923 JP 7-226250 A

  However, in the case of the double locking connector disclosed in Patent Document 2, since the spacer is formed in a structure in which openings through which the terminal fittings are inserted are arranged in a lattice shape, the spacer has a dense structure in which wall portions intersect vertically and horizontally. As a result, there has been a problem that the structure and weight of the spacer cannot be avoided.

  Accordingly, an object of the present invention is to solve the above-described problems, and when the spacer is returned from the final locking position on the connector housing to the temporary locking position, the spacer is inadvertently damaged due to damage to the temporary locking protrusion. The connector housing does not fall off, and the double locking state by the spacer can be easily visually discriminated. Further, the increase in the wall portion of the spacer is suppressed, and the spacer structure is simplified and lightened. It is an object of the present invention to provide a double locking connector.

The above-described object of the present invention is achieved by the following configuration.
(1) A connector comprising a plurality of terminal receiving holes into which terminal fittings are inserted and mounted, a spacer receiving space that crosses the terminal receiving holes, and a spacer locking means that is provided at a position facing the spacer receiving space. A housing;
A spacer that is inserted into the spacer receiving space and can be positioned by the spacer locking means at two positions of a temporary locking position and a main locking position shifted in the insertion direction;
A double-locking connector in which the terminal fitting mounted in the terminal-receiving hole is double-locked by the spacer positioned at the main-locking position,
The spacer accommodating space is
A spacer insertion opening that opens to the outer side on one side of the connector housing so that the spacer can be inserted; and a mounting state detection opening that opens to the outer side of the other side of the connector housing that faces the spacer insertion port. Prepared,
The spacer is
A temporary locking protrusion that engages with the spacer locking means when the spacer moves to the temporary locking position and restricts movement of the spacer in the insertion direction;
A main locking projection that engages with the spacer locking means when the spacer moves to the main locking position and restricts movement of the spacer in the insertion direction;
A terminal engaging portion that engages with the terminal fitting when it is moved to the main locking position and prevents the terminal fitting from coming off;
An isolation wall piece that extends along the insertion direction of the spacer so as to partition the adjacent terminal receiving holes when moved to the main locking position; and
Extending and forming at the tip of the isolation wall piece along the outer side surface of the other side of the connector housing, the tip surface of the other side of the connector housing is moved when the spacer moves to the main locking position. A convex piece that is flush with the outer surface of the device and closes the mounting state detection opening,
With
The double locking connector, wherein the mounting state detection opening and the convex piece are provided so as to overlap a part of a width of a terminal fitting inserted into the terminal receiving hole.

  According to the configuration of (1) above, even if the spacer locking means on the connector housing side cannot fix the spacer to the temporary locking position due to the damage of the temporary locking protrusion, the spacer is temporarily moved from the final locking position. When moved to the locking position, the protruding piece formed at the tip of the spacer's isolation wall piece is caught by the terminal fitting that is housed in the connector housing, preventing the spacer from inadvertently dropping from the connector housing. can do.

  In addition, when the spacer moves from the temporary locking position to the final locking position, the mounting state detection opening that opens on the outer side of the other side of the connector housing is changed from being open to being closed by the convex piece. Therefore, by visually checking whether or not the mounting state detection opening is closed by the convex piece, it is possible to easily visually determine whether or not the spacer has been properly moved to the main locking position.

  In addition, the convex piece may have a size that overlaps a part of the width of the terminal fitting. Therefore, even if a plurality of separation wall pieces are arranged in the spacer because three or more terminal receiving holes are arranged in the width direction in the connector housing, the convex piece does not become a connection wall that connects adjacent separation wall pieces. In other words, compared to a conventional spacer that has a structure in which walls are formed in a lattice shape by connecting adjacent separating walls with a connecting wall, the increase in the wall portion in the spacer is suppressed and the structure of the spacer is reduced. Simplification and weight reduction can be achieved.

  According to the double locking connector of the present invention, even if the spacer locking means on the connector housing side cannot fix the spacer to the temporary locking position due to the damage of the temporary locking projection, When the spacer is moved from the temporary locking position to the temporary locking position, the spacer is inadvertently dropped from the connector housing because the protruding piece formed at the tip of the spacer separating wall piece is caught by the terminal fitting housed in the connector housing. Can be avoided.

  In addition, when the spacer moves from the temporary locking position to the final locking position, the mounting state detection opening that opens on the outer side of the other side of the connector housing is changed from being open to being closed by the convex piece. Therefore, by visually checking whether or not the mounting state detection opening is closed by the convex piece, it is possible to easily visually determine whether or not the spacer has been properly moved to the main locking position.

  In addition, the convex piece may have a size that overlaps a part of the width of the terminal fitting. Therefore, even if a plurality of separation wall pieces are arranged in the spacer because three or more terminal receiving holes are arranged in the width direction in the connector housing, the convex piece does not become a connection wall that connects adjacent separation wall pieces. In other words, compared to a conventional spacer that has a structure in which walls are formed in a lattice shape by connecting adjacent separating walls with a connecting wall, the increase in the wall portion in the spacer is suppressed and the structure of the spacer is reduced. Simplification and weight reduction can be achieved.

It is a disassembled perspective view of one Embodiment of the double latching connector which concerns on this invention. It is the perspective view which looked at the connector housing shown in FIG. 1 from the one side. It is the perspective view which looked at the connector housing shown in FIG. 1 from the other side. It is the perspective view which looked at the spacer shown in FIG. 1 from the front end side. It is a cross-sectional view of the double locking connector in a state where the spacer shown in FIG. 1 is positioned at the temporary locking position. FIG. 3 is a cross-sectional view of the double locking connector in a state where the spacer shown in FIG. 1 is positioned at the main locking position. It is the perspective view which looked at the double latching connector of the state in which the spacer shown in FIG. 1 is positioned in this latching position from the other side. It is a disassembled perspective view of the double latching connector as a comparative example with respect to this embodiment. FIG. 9 is a cross-sectional view of the double locking connector shown in FIG. 8 in a state where the spacer is positioned at the temporary locking position. It is a disassembled perspective view of the conventional double latching connector.

  Hereinafter, a preferred embodiment of a double locking connector according to the present invention will be described in detail with reference to the drawings.

  1 to 7 show an embodiment of a double locking connector according to the present invention. FIG. 1 is an exploded perspective view of the double locking connector according to an embodiment of the present invention. FIG. FIG. 3 is a perspective view of the connector housing shown in FIG. 1 viewed from the other side, and FIG. 4 is a perspective view of the spacer shown in FIG. 1 viewed from the front end side. 5 is a cross-sectional view of the double-locking connector in a state in which the spacer shown in FIG. 1 is positioned at the temporary locking position, and FIG. 6 is a diagram showing that the spacer shown in FIG. FIG. 7 is a perspective view of the double-locking connector in a state where the spacer shown in FIG. 1 is positioned at the full-locking position as seen from the other side.

  As shown in FIG. 1, the double locking connector 1 of this embodiment includes a connector housing 10 and a spacer 20.

  As shown in FIGS. 1 to 3, the connector housing 10 includes a plurality (two in this embodiment) of terminal accommodation holes 11, a spacer accommodation space 12 that crosses these terminal accommodation holes 11, and a spacer accommodation space. 12 and a spacer locking projection 13 (see FIG. 2).

  The terminal accommodating hole 11 is a hole into which the terminal fitting 30 (only the tip portion of the terminal fitting 30 is shown in FIG. 1) is inserted and attached from the direction of the arrow X1, and the front and rear direction of the connector housing 10 (arrows in FIG. 1). (Through the X2 direction).

  Although not shown, the terminal receiving hole 11 is provided with a lance that engages with the terminal fitting 30 that has been properly inserted to prevent the terminal fitting 30 from coming off.

  The spacer accommodating space 12 is a hole for inserting and mounting the spacer 20. In the case of the present embodiment, the spacer housing space 12 includes a spacer insertion port 12a that opens to the outer side surface 10a (see FIG. 2) on one side of the connector housing 10 so that the spacer 20 can be inserted, and a connector that faces the spacer insertion port 12a. A mounting state detection opening 12b that opens to the outer side surface 10b (see FIG. 3) on the other side of the housing 10 is provided. The spacer housing space 12 is provided so as to penetrate from the outer side surface 10a on one side of the connector housing 10 to the outer side surface 10b on the other side. The penetration direction of the spacer accommodation space 12 is orthogonal to the penetration direction of the terminal accommodation hole 11.

  In the case of this embodiment, the mounting state detection opening 12b is an opening smaller than the spacer insertion port 12a.

  The spacer locking protrusion 13 is a protrusion as spacer locking means for positioning the spacer 20 inserted into the spacer receiving space 12 at the temporary locking position and the main locking position. As shown in FIG. 2, the spacer locking projections 13 are provided at four locations on the front and rear of each inner side surface 12 c facing the arrangement direction of the terminal accommodating holes 11 (in the direction of arrow H <b> 2 in FIG. 2) in the spacer accommodating space 12. ing. The arrow Y2 shown in FIGS. 1 and 2 indicates the insertion direction of the spacer 20 with respect to the spacer accommodating space 12.

  As shown in FIGS. 1 and 4, the spacer 20 includes a temporary locking protrusion 21, a final locking protrusion 22, a terminal engaging portion 23, an isolation wall piece 24, and a convex piece 25.

  As shown in FIG. 4, the temporary locking protrusions 21 are formed on the front end surfaces 26 a and 26 b of the pair of side wall pieces 26 of the spacer 20 that are disposed opposite to each other in the same manner as the pair of inner side surfaces 12 c in the connector housing 10. In FIG. 4, the projections are respectively provided on the arrow Y3 direction side.

  The pair of side wall pieces 26 are wall pieces that face the inner side surface 12c of the spacer accommodating space 12 shown in FIG. 2 when the spacer 20 is inserted into the spacer accommodating space 12. When the spacer 20 is inserted into the spacer accommodating space 12, the pair of inner side surfaces 12 c facing the pair of side wall pieces 26 serve as guide surfaces for guiding the movement of the spacer 20.

  Further, each side wall piece 26 is provided with a slit in order to reduce the load acting on the temporary locking protrusion 21 by displacing the temporary locking protrusion 21 when the temporary locking protrusion 21 gets over the spacer locking protrusion 13. 26c is formed.

  As shown in FIGS. 5 and 6, the base ends of the pair of side wall pieces 26 are connected by a connecting wall 27. When the spacer 20 reaches the final locking position, the connecting wall 27 functions as a lid for closing the spacer insertion port 12a as shown in FIG.

  As shown in FIG. 5, the temporary locking projections 21 provided on the pair of side wall pieces 26 get over the spacer locking projections 13 when the spacer 20 moves to the temporary locking position. 13 is in an engagement state in which it is prevented from coming off (in a comparative example which will be described later, the temporary locking projection 21 is over the spacer locking projection 13 as shown in FIG. 9), and the spacer 20 moves in the insertion direction. To regulate.

  The main locking projections 22 are mounted on the front end surface 26a and the rear end surface 26b of the pair of side wall pieces 26 so as to be displaced from the temporary locking projections 21 in the insertion direction.

  When the spacer 20 inserted into the spacer receiving space 12 moves to the main locking position as shown in FIG. 6, the main locking protrusion 22 gets over the spacer locking protrusion 13 and is moved by the spacer locking protrusion 13. The engaged state is prevented from coming off, and the movement of the spacer 20 in the insertion direction is restricted.

  As shown in FIG. 6, the terminal engaging portion 23 is a projection protruding from the connecting wall 27 toward the terminal accommodating hole 11 as shown in FIG. 4, and when the spacer 20 is moved to the final locking position, as shown in FIG. 30 to prevent the terminal fitting 30 from coming off.

  The isolation wall piece 24 is equipped as a countermeasure against contamination (foreign matter intrusion) between the terminal receiving holes 11 adjacent in the spacer receiving space 12. This separation wall piece 24 extends along the insertion direction of the spacer 20 (the direction of arrow Y3 in FIG. 4) so as to partition the adjacent terminal receiving holes 11 when the spacer 20 moves to the final locking position. It is equipped on the connection wall 27 in the structure to come out.

  As shown in FIG. 5, the convex piece 25 is formed to extend from the tip of the isolation wall piece 24 along the outer side surface 10 b on the other side of the connector housing 10. In the case of this embodiment, the extending direction of the convex piece 25 is the direction of the arrow Z3 in FIGS. 1 and 4 and the direction orthogonal to the arrow Y3 direction, which is the extending direction of the isolation wall piece 24.

  In the case of the present embodiment, when the spacer 20 moves to the final locking position, the convex piece 25 has a tip end surface (outer surface) 25a of the convex piece 25 as shown in FIG. 6 and FIG. 10 is flush with the outer side surface 10b on the other side to close the mounting state detection opening 12b.

  In the case of this embodiment, the mounting state detection opening 12b and the convex piece 25 are over the wrap region R, which is a part of the width of the terminal fitting 30 inserted into the terminal accommodating hole 11, as shown in FIG. Equipped with dimensions and arrangement set to wrap

  When the spacer 20 described above is inserted into the spacer receiving space 12, the temporary locking position (position shown in FIG. 5) and the main locking position (position shown in FIG. 6) shifted in the insertion direction are two. The position can be determined by the spacer locking projection 13.

  In the double-locking connector 1 of the present embodiment, the terminal fittings 30 are attached to and detached from the terminal housing holes 11 in a state where the spacer 20 is positioned at the temporary locking position shown in FIG. Do work.

  When the attachment of the terminal fitting 30 to the connector housing 10 is completed, as shown in FIG. 6, the spacer 20 is pushed into the spacer accommodating space 12, and the spacer 20 is moved to the final locking position. Then, the terminal engagement portion 23 of the spacer 20 is engaged with the terminal fitting 30 as shown in FIG. 6 with respect to the terminal fitting 30 that is already prevented from coming off by engagement with the lance in the terminal accommodating hole 11. Thus, a double-locked state in which the terminal metal 30 is prevented from being detached is obtained.

  According to the double locking connector of the embodiment described above, the spacer locking protrusion 13 on the connector housing 10 side cannot fix the spacer 20 in the temporary locking position due to the damage of the temporary locking protrusion 21. However, when the spacer 20 is moved from the final locking position to the temporary locking position, as shown in FIG. 5, the protruding piece 25 formed at the tip of the separation wall piece 24 of the spacer 20 has a connector housing 10. Is caught by the terminal fitting 30 being housed. Therefore, it is possible to avoid the spacer 20 from being inadvertently dropped from the connector housing 10.

  Further, when the spacer 20 is moved from the temporary locking position to the final locking position, as shown in FIG. 5, the mounting state detection opening 12b that opens to the outer side surface 10b on the other side of the connector housing 10 is open. Then, as shown in FIG.

  Therefore, by visually checking whether or not the mounting state detection opening 12b is closed by the convex piece 25, it is possible to easily visually determine whether or not the spacer 20 has been properly moved to the full locking position.

  In addition, the convex piece 25 may have a size that overlaps a part of the wrap region R of the width of the terminal fitting 30 as shown in FIG. Accordingly, since three or more terminal receiving holes 11 are arranged in the width direction in the connector housing 10, even when a plurality of separating wall pieces 24 are arranged in the spacer 20, the protruding piece 25 connects adjacent separating wall pieces 24. It will not be a connecting wall. In other words, compared to a conventional spacer that has a structure in which adjacent separating walls are connected to each other by a connecting wall so that the wall portion is formed in a lattice shape, an increase in the wall portion in the spacer 20 is suppressed and the spacer 20 The structure can be simplified and reduced in weight.

  8 and 9 show a double locking connector as a comparative example, FIG. 8 is an exploded perspective view of the double locking connector as a comparative example, and FIG. 9 shows the double locking connector shown in FIG. It is a cross-sectional view in a state where the spacer is positioned at the temporary locking position in the connector.

The connector housing 10A in the double locking connector of the comparative example is obtained by changing a part of the configuration of the connector housing 10 of the above-described embodiment. The changed configuration is that a spacer housing space 12A is provided instead of the spacer housing space 12 shown in the embodiment. The spacer housing space 12A is different from the spacer housing space 12 of one embodiment in that the spacer housing space 12A has a dead end structure that does not penetrate the outer side surface 10b on the other side of the connector housing 10, but other configurations are the same as those of the embodiment. The same components as those in the embodiment are denoted by the same reference numerals and description thereof is omitted.
Moreover, the spacer 20A in the comparative example is obtained by changing a part of the spacer 20 of the above-described embodiment. The spacer 20 shown in the embodiment is different from the spacer 20 in that the isolation wall piece 24 has a simple protruding piece shape without the protruding piece 25 at the tip.

  Also in the case of the double locking connector of the comparative example, the locking structure for positioning the spacer 20A at the two positions of the temporary locking position and the main locking position may be the same as in the embodiment.

  FIG. 9 shows that in the double locking connector of the comparative example, the temporary locking protrusion 21 mounted on the spacer 20A gets over the spacer locking protrusion 13 mounted on the connector housing 10A and is positioned at the temporary locking position. Shows the state. When the spacer 20A is further pushed into the spacer housing space 12A as indicated by an arrow Y4 from the temporarily locked state and the main locking projection 22 gets over the spacer locking projection 13, the state where the spacer 20A is positioned at the final locking position Become.

  In the case of this comparative example, since the convex piece 25 is not provided, the spacer locking means on the connector housing side cannot fix the spacer in the temporary locking position due to the damage of the temporary locking protrusion. In addition, when the spacer is moved from the final locking position to the temporary locking position, the spacer 20A is not caught by the connector housing 10A and the terminal fitting 30, so that the spacer 20A is not accidentally dropped from the connector housing. Can not do it.

  Further, since the spacer receiving space 12A does not penetrate the outer side surface 10b on the other side of the connector housing 10A, the appearance change when the spacer 20A moves from the temporary locking position to the final locking position is small, and the spacer spacer 20A It is also not possible to easily visually determine whether or not the proper movement position has been reached.

  Further, in the case of the spacer 20A of the comparative example, since the convex piece 25 is not provided, the creeping distance of the isolation wall piece 24 as the contamination countermeasure means is shorter than that in the embodiment, and the performance of suppressing the contamination is also achieved. May decrease.

  Thus, by comparing with the comparative example, the utility of the convex piece 25 and the mounting state detection opening 12b provided in the embodiment of the present invention becomes clear.

  In addition, the double latching connector of this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably.

  For example, the amount of displacement between the main locking projection 22 and the temporary locking projection 21 and the specific shapes of the locking projections 22 and 21 in the above-described embodiment can be appropriately changed in design.

DESCRIPTION OF SYMBOLS 1 Double locking connector 10 Connector housing 10a Outer surface of one side 10b Outer surface of the other side 11 Terminal receiving hole 12 Spacer receiving space 12a Spacer insertion port 12b Mounting state detection opening 13 Spacer locking protrusion (spacer locking means)
20 Spacer 21 Temporary Locking Projection 22 Main Locking Projection 23 Terminal Engagement Section 24 Separating Wall Piece 25 Convex Piece 30 Terminal Fitting

Claims (1)

A connector housing comprising a plurality of terminal receiving holes into which terminal fittings are inserted and mounted; a spacer receiving space that crosses the terminal receiving hole; and spacer locking means provided at a position facing the spacer receiving space;
A spacer that is inserted into the spacer receiving space and can be positioned by the spacer locking means at two positions of a temporary locking position and a main locking position shifted in the insertion direction;
A double-locking connector in which the terminal fitting mounted in the terminal-receiving hole is double-locked by the spacer positioned at the main-locking position,
The spacer accommodating space is
A spacer insertion opening that opens to the outer side on one side of the connector housing so that the spacer can be inserted; and a mounting state detection opening that opens to the outer side of the other side of the connector housing that faces the spacer insertion port. Prepared,
The spacer is
A temporary locking protrusion that engages with the spacer locking means when the spacer moves to the temporary locking position and restricts movement of the spacer in the insertion direction;
A main locking projection that engages with the spacer locking means when the spacer moves to the main locking position and restricts movement of the spacer in the insertion direction;
A terminal engaging portion that engages with the terminal fitting when it is moved to the main locking position and prevents the terminal fitting from coming off;
An isolation wall piece that extends along the insertion direction of the spacer so as to partition the adjacent terminal receiving holes when moved to the main locking position; and
Extending and forming at the tip of the isolation wall piece along the outer side surface of the other side of the connector housing, the tip surface of the other side of the connector housing is moved when the spacer moves to the main locking position. A convex piece that is flush with the outer surface of the device and closes the mounting state detection opening,
With
The double locking connector, wherein the mounting state detection opening and the convex piece are provided so as to overlap a part of a width of a terminal fitting inserted into the terminal receiving hole.

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