JP5329339B2 - connector - Google Patents

Description

  The present invention relates to a connector.

15 and 16 show a conventional example of a connector.
This connector 1 is disclosed in Patent Document 1 below, and a lance 9 that prevents the female terminal fitting 3 from coming off is provided in a connector housing 7 provided with a terminal accommodating portion 5 that accommodates the female terminal fitting 3. It is integrally formed.

  The lance 9 is provided with a locking projection 9b protruding into the terminal accommodating portion 5 on an elastic piece 9a extending along the insertion direction of the female terminal fitting 3, and is provided on the female terminal fitting 3. The engagement protrusion 9b engages with the formed engagement groove, thereby preventing the female terminal fitting 3 from coming off.

  In the conventional connector 1, a protective member 11 is attached to the connector housing 7. The protective member 11 does not restrict the bending displacement of the lance 9 in the state of FIG. 15 temporarily locked to the connector housing 7, but is disengaged from the lance 9 in the state of FIG. 16 permanently locked to the connector housing 7. It functions as a double locking means for restraining the deflection displacement in the direction, and the fixing of the female terminal fitting 3 by the lance 9 is ensured.

  The connector housing 7 described above is integrally formed by resin injection molding.

JP 2006-100227 A

  However, in the case of the connector housing 7 described above, a relatively large gap S1 must be secured around the lance 9 that is elastically displaced due to the die-cutting structure of the molding die.

  Further, when extracting the female terminal fitting 3 locked by the lance 9, it is necessary to bend the lance 9 in the disengagement direction. Further, when the lance 9 is disengaged, it is necessary to bend the lance 9 greatly by the amount of protrusion of the locking projection 9b on the lance 9. Therefore, it is necessary to provide an extraction jig hole 13 for inserting a terminal extraction jig for bending the lance 9 in the disengagement direction with a relatively large diameter adjacent to the terminal accommodating portion 5.

  Since the gap S1 and the extraction jig hole 13 are large, when the connector 1 is fitted and connected to the mating connector, the tip of the male terminal fitting of the mating connector is connected to the gap S1 or the extraction jig. There is a possibility that the inconvenience of bending deformation of the male terminal fitting may occur due to being erroneously inserted into the service hole 13.

  Further, since the lance 9 is integrally formed, there is a problem that the structure of the molding die of the connector housing 7 is complicated.

  Therefore, the object of the present invention is to solve the above-mentioned problems, and the problem that the male terminal fitting of the mating connector is deformed by erroneous insertion at the time of mating connection with the mating connector does not occur. An object of the present invention is to provide a connector capable of completing the connection and simplifying the structure of the molding die of the connector housing having the terminal accommodating portion.

The above-described object of the present invention is achieved by the following configuration.
(1) an outer housing;
An inner housing that has a terminal accommodating portion that accommodates a female terminal fitting and is inserted into and mounted on the outer housing;
The inner housing and the outer housing are connected at two positions, a temporary locking position where the front half of the inner housing is inserted into the outer housing and a final locking position where substantially the entire inner housing is inserted into the outer housing. A connectable housing locking means;
A connector with
The terminal receiving portion is formed to be raised on the front half side of the lower wall of the receiving portion and engages with a locking groove for retaining the female terminal fitting, thereby restricting movement of the female terminal fitting in the insertion / extraction direction. A retaining projection that protrudes from the side of the female terminal fitting so that the front end of the female terminal fitting does not interfere with the retaining projection when the female terminal fitting is inserted into the terminal accommodating portion. An inclined guide portion that lifts the front half of the female terminal fitting from the lower wall of the housing portion by guiding the sliding protrusion formed, and a front half portion of the upper wall of the housing portion that faces the housing lower wall are cut off. An opening through which the front half of the female terminal fitting, which is provided in a form and is lifted from the lower wall of the housing portion by guidance by the inclined guide portion, can be inserted;
The outer housing is provided with an elastic pressing piece extending along the insertion direction of the inner housing at a position facing the opening of the inner housing at the temporary locking position,
When the front end portion of the female terminal fitting inserted into the terminal housing portion of the inner housing at the temporary locking position protrudes from the opening portion by induction by the inclined guide portion, the elastic holding piece is moved to the front end of the female terminal fitting. The connector is pushed back to the housing lower wall side so that the locking groove of the female terminal fitting is locked by the retaining protrusion.

(2) The outer housing is fixedly equipped with a terminal pressing wall that covers the opening when the inner housing moves to the final locking position along the insertion direction of the inner housing,
The terminal holding wall holds the female terminal fitting held and held in the terminal containing portion from the lower wall of the containing portion, and the female terminal fitting is locked by the retaining protrusion. The connector as described in (1) above, wherein the state is maintained.

  (3) When the retaining projection and the engaging groove are engaged with the accommodating portion side wall of the terminal accommodating portion, the sliding direction of the female terminal fitting is engaged with the sliding projection. The connector according to (1) or (2) above, further comprising a terminal locking groove for restricting movement of the connector.

  According to the configuration of (1) above, the female terminal fitting is inserted into the terminal accommodating portion of the inner housing while the inner housing is locked at the temporary locking position by the housing locking means. When the female terminal fitting rides on the inclined guide part during insertion of the female terminal fitting, the front half of the female terminal fitting is lifted from the lower wall of the housing part by the guidance of the inclined guiding part, and the front end part of the female terminal fitting is inserted. The upper part protrudes upward from the opening and comes into contact with the elastic pressing piece of the outer housing.

  Further, when the female terminal fitting is inserted, the front end of the female terminal fitting is pushed back to the lower wall side of the housing portion by the elastic pressing piece, so that the locking groove of the female terminal fitting is inserted. Is locked by the retaining protrusion.

  According to the configuration of (1), the retaining protrusion of the inner housing that prevents the female terminal fitting from being detached is a partition wall having a rigid structure that is not elastically displaced with respect to the insertion direction of the female terminal fitting and the orthogonal direction thereof. Since it is provided on the lower wall of the housing part, compared with the conventional connector housing in which the female terminal fitting is prevented from being detached by a lance that is elastically displaced in the direction perpendicular to the insertion direction of the female terminal fitting, There is no need to provide a large gap for a die cutting structure or the like.

  In addition, the female terminal fitting is attached to the terminal accommodating portion with respect to the inner housing at the temporary locking position. When the inner housing is pulled out from the outer housing, the female terminal fitting acts on the female terminal fitting from the inclined guide portion. The engagement between the retaining protrusion and the female terminal fitting can be easily released by force, so the hole for the removal tool for inserting the removal tool for the terminal is adjacent to the terminal accommodating part with a relatively large diameter. There is no need to provide it.

  Therefore, it is possible to reduce the gaps and jig holes formed around the terminal accommodating portion and the like, and the male terminal fitting of the mating connector is connected to the clearance around the terminal accommodating portion and the mating connector. The problem of deformation due to erroneous insertion into the jig hole can be avoided, and the connection with the mating connector can be reliably completed.

  In addition, the inner housing does not require a lance that is elastically displaced in a direction perpendicular to the insertion direction of the female terminal fitting, and further, an elastic provided in the outer housing for engaging the female terminal fitting with the retaining protrusion. Since the pressing piece may be a simple plate-like structure extending along the insertion direction of the inner housing, it is not difficult to remove the mold from these inner housing and outer housing. Therefore, in comparison with the conventional connector housing in which the female terminal fitting is prevented from being removed by the lance, it becomes easy to remove the molding die of each housing, and the structure of the molding die of the connector housing can be simplified. it can.

  When the female terminal fitting is inserted into the terminal housing portion of the inner housing that is joined to the outer housing at the temporary locking position, the female terminal fitting is normally engaged with the retaining protrusion in the terminal housing portion. When the insertion operation of the female terminal fitting is finished before it is stopped, the female terminal fitting remains in an incompletely inserted state in which the upper end of the front half projects into the opening. If the inner housing is pushed into the outer housing in this state, the incompletely inserted female terminal fitting will be pushed to the rear of the inner housing due to interference with the elastic presser piece. It can be easily detected and is effective in preventing incomplete insertion of the female terminal fitting.

  Further, according to the configuration of (2), the inner housing is further inserted into the outer housing in a normal fitting state where the female terminal fitting is locked by the retaining protrusion of the terminal accommodating portion. When the entire housing is inserted into the outer housing, the inner housing is in a final locking state where the inner housing is coupled to the outer housing at the final locking position.

  In this fully locked state, the terminal retainer wall provided in the outer housing covers the opening of the terminal accommodating portion of the inner housing, and from the accommodating portion lower wall of the female terminal fitting that is accommodated and held in the terminal accommodating portion. And the state where the female terminal fitting is locked by the retaining protrusion is maintained.

  In other words, the terminal retainer wall of the outer housing functions as a double locking means that maintains the state in which the retaining protrusion of the terminal accommodating portion is engaged with the female terminal fitting, and ensures the retaining performance against the female terminal fitting. Make things.

  Further, since the terminal holding wall of the outer housing that functions as a double locking means may be a rigid partition wall that is fixedly installed along the insertion direction of the inner housing, it is difficult to remove the molding die of the outer housing. Therefore, it is suitable for simplifying the structure of the molding die for the outer housing.

  According to the configuration of the above (3), not only the retaining protrusion on the bottom of the terminal accommodating portion but also the terminal locking groove on the side wall of the accommodating portion regulates the movement of the female terminal fitting in the removing direction. Therefore, the female terminal fitting can be more securely prevented from coming off.

  Further, the terminal locking groove on the inner housing side is formed as a notch groove in the end portion of the accommodating portion side wall of the terminal accommodating portion, for example, so that the mold release property of the molding die is not deteriorated.

  According to the connector of the present invention, it is possible to reduce gaps and jig holes formed around the terminal accommodating portion and the like, and the male terminal fitting of the mating connector is accommodated in the terminal housing during the mating connection with the mating connector. It is possible to avoid the problem of deformation due to erroneous insertion into the gap around the part or the jig hole, and to reliably complete the connection with the mating connector.

  In addition, in comparison with the conventional connector housing in which the female terminal fitting is prevented from being removed by the lance, the mold of the connector housing can be easily removed in both the outer housing and the inner housing. You can also simplify the type structure.

1 is a perspective view of an embodiment of a connector according to the present invention. It is a front view of the connector shown in FIG. It is a rear view of the connector shown in FIG. It is a side view of the connector shown in FIG. It is a perspective view from the lower surface side of the female terminal metal fitting accommodated in the connector shown in FIG. It is a disassembled perspective view of the outer housing and inner housing which comprise the connector shown in FIG. FIG. 7 is a side view of the outer housing illustrated in FIG. 6. It is a side view of the inner housing shown in FIG. It is a longitudinal cross-sectional view of the outer housing shown in FIG. It is a longitudinal cross-sectional view of the inner housing shown in FIG. FIG. 7 is an explanatory view showing a state in which the inner housing shown in FIG. 6 is in a temporarily locked state, and the sliding projection of the female terminal fitting inserted into the lower terminal accommodating portion starts to contact the inclined guide portion in the terminal accommodating portion. is there. When the inner housing shown in FIG. 6 is in a temporarily locked state, the sliding projection of the female terminal fitting inserted into the lower terminal accommodating portion climbs up the inclined guide portion in the terminal accommodating portion, and the female terminal fitting It is explanatory drawing of the state which contact | abutted the front-end | tip of the elastic pressing piece. FIG. 7 is an explanatory diagram of a state in which the inner housing shown in FIG. 6 is in a temporarily locked state, and the female terminal fitting inserted into the lower terminal accommodating portion is normally locked to the retaining protrusion in the terminal accommodating portion. . It is explanatory drawing when the inner housing of the temporarily latched state shown in FIG. 13 is further pushed in to the outer housing, and it will be in a final latched state. It is a longitudinal cross-sectional view of a state in which a female terminal fitting is being inserted into a terminal accommodating portion of a conventional connector. FIG. 16 is a longitudinal sectional view of a state in which a female terminal fitting inserted into a terminal accommodating portion of the connector shown in FIG. 15 is prevented from being detached by a lance and a protective member.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a connector according to the present invention will be described in detail with reference to the drawings.

  1 to 4 show the appearance of an embodiment of the connector according to the present invention, and FIG. 5 shows a female terminal fitting 23 accommodated in the connector 21 of the embodiment.

  The female terminal fitting 23 is a press-molded product of a metal plate, and a rectangular tubular terminal fitting portion 25 to which a male terminal fitting housed in a mating connector is fitted and connected, and a core wire for crimping a core wire of an electric wire. A crimping piece 26 and a coating crimping part 27 for holding and fixing the coating part of the electric wire are provided.

  The terminal fitting portion 25 is located in the front half of the terminal fitting, and the core wire crimping piece 26 and the covering crimping portion 27 are located in the latter half of the terminal fitting.

  In FIG. 5, a locking groove 28 for retaining is formed in the upper wall 25 a of the terminal fitting portion 25 facing upward in a position near the front end. In the case of this embodiment, the locking groove 28 has a square hole shape.

  In FIG. 5, a sliding protrusion 31 is provided at a position near the front end of the side portion 25 b adjacent to the lower wall 25 a of the terminal fitting portion 25 so as to protrude sideways.

  As shown in FIG. 6, the connector 21 according to this embodiment includes an outer housing 33 and an inner housing 37 that has a terminal accommodating portion 35 that accommodates the female terminal fitting 23 and is inserted and attached to the outer housing 33. It is configured.

  The outer housing 33 is provided with a connector lock portion 41 on the upper surface for locking the mating connector with a male terminal fitting that is fitted and connected to the female terminal fitting 23. Further, guide grooves 43 and locking recesses 45 are provided on the inner surfaces of both side walls 33a and 33a of the outer housing 33 as housing locking means for locking the inner housing 37 at the temporary locking position and the main locking position. I have.

  The guide groove 43 is a notch groove that engages with the first locking projection 47 and the second locking projection 49 that protrude from the both side surfaces 37a and 37a of the inner housing 37 while shifting the position in the insertion direction. The inner surfaces of 37a and 37a are formed from the rear end of the outer housing 33 to the center of the housing along the insertion direction of the inner housing 37.

  The first locking protrusion 47 and the second locking protrusion 49 are provided at the same height on the side surface 37 a of the inner housing 37 so as to fit into the guide groove 43. The first locking protrusion 47 protrudes near the tip of the inner housing 37, and the second locking protrusion 49 protrudes substantially at the center of the housing.

  As shown in FIG. 11, when the inner housing 37 is positioned at the temporary locking position where the front half of the inner housing 37 is inserted into the outer housing 33, the first locking projection 47 is engaged with the terminal end of the guide groove 43, The inner housing 37 and the outer housing 33 are in a temporarily locked state, which is a temporarily joined state.

  When the inner housing 37 is further pushed into the outer housing 33 from the temporarily locked state, almost the entire inner housing 37 is inserted into the outer housing 33 as shown in FIG. The position of the inner housing 37 at this time is the final locking position. At this time, the first locking projection 47 on the inner housing 37 is engaged with the locking recess 45 of the outer housing 33, and the second locking projection 49 is engaged with the terminal end of the guide groove 43, so that the inner housing 37 is engaged. Is fully engaged with the outer housing 33 in a state of being completely mounted on the outer housing 33.

  In the case of this embodiment, as shown in FIG. 10, the inner housing 37 is equipped with terminal accommodating portions 35 in two upper and lower stages. Each terminal accommodating portion 35 is provided with a retaining protrusion 51, an inclined guide portion 53, an opening 55, and a terminal locking groove 57.

  The retaining projection 51 is a projection that is raised on the front half side of the housing lower wall 35a so as to project into the terminal housing portion 35, and is a latch for retaining the female terminal fitting 23 shown in FIG. Engaging with the groove 28 restricts the movement of the female terminal fitting 23 in the insertion / extraction direction.

  The inclined guide portion 53 accommodates the front half of the female terminal fitting 23 so that the front end of the female terminal fitting 23 does not interfere with the retaining protrusion 51 when the female terminal fitting 23 is inserted into the terminal accommodating portion 35. This is an inclined surface (slope) that rises from the lower part wall 35a. The inclined guide portion 53 is provided on the accommodating portion side wall 35b so that the sliding protrusion 31 of the female terminal fitting 23 shown in FIG.

  The opening 55 is provided in a form in which the front half of the housing upper wall 35c facing the housing lower wall 35a is cut out, and opens the terminal housing 35 upward. The opening 55 allows the front half of the female terminal fitting 23 that has been lifted from the housing lower wall 35 a by the guidance of the inclined guide 53 to be inserted upward.

  As shown in FIGS. 6 and 10, the terminal locking groove 57 is formed as a notch groove in the front end portion of the accommodating portion side wall 35 b of the terminal accommodating portion 35. The terminal locking groove 57 is formed by inserting the female terminal fitting 23 into the terminal receiving portion 35 of the inner housing 37 in the temporarily locked state, and removing the locking groove 28 of the female terminal fitting 23 and the terminal receiving portion 35. When the locking projection 51 is engaged, it engages with the sliding projection 31 projecting from the side of the female terminal fitting 23 to restrict the movement of the female terminal fitting 23 in the removal direction.

  On the other hand, in the outer housing 33, as shown in FIGS. 9 and 11, the insertion direction of the inner housing 37 (in the direction of arrow A in FIG. 9) at a position facing the opening 55 of the inner housing 37 at the temporary locking position. An elastic presser piece 61 extending along the line is provided.

  The elastic pressing piece 61 has a leaf spring shape that bends and deforms in a direction orthogonal to the insertion direction of the inner housing 37.

  When the female terminal fitting 23 is inserted into the terminal housing portion 35 of the inner housing 37 that is temporarily locked to the outer housing 33, the sliding protrusion 31 of the female terminal fitting 23 is inclined and guided as shown in FIG. Get on the beginning of part 53. When the female terminal fitting 23 is further inserted, as shown in FIG. 12, the front half of the female terminal fitting 23 is lifted from the housing lower wall 35a as the sliding protrusion 31 rises up the inclined guide portion 53, The front end of the mold terminal fitting 23 protrudes from the opening 55 and comes into contact with the elastic holding piece 61.

  In this state, when the female terminal fitting 23 is further inserted, the elastic holding piece 61 pushes the front end portion of the contacted female terminal fitting 23 back toward the accommodating portion lower wall 35a, and as shown in FIG. The locking groove 28 of the mold terminal fitting 23 is locked by the retaining protrusion 51.

  In the case of this embodiment, the outer housing 33 has a terminal retainer extending from the proximal end side of the elastic retainer piece 61 to the distal end side of the outer housing 33 along the insertion direction of the inner housing 37, as shown in FIG. A wall 63 is fixedly equipped.

  As shown in FIG. 14, the terminal pressing wall 63 covers the opening 55 when the inner housing 37 moves to the final locking position where the inner housing 37 is in the final locking state, and is accommodated and held in the terminal accommodating portion 35. The floating of the female terminal fitting 23 from the accommodating portion lower wall 35a is suppressed. Thereby, the terminal pressing wall 63 functions as double locking means for maintaining the state in which the female terminal fitting 23 is locked by the retaining protrusion 51.

  In the connector 21 according to the embodiment described above, the terminal housing portion 35 of the inner housing 37 is female with the inner housing 37 locked in the temporary locking position by the housing locking means (temporary locking state). The mold terminal fitting 23 is inserted. When the sliding projection 31 of the female terminal fitting 23 rides on the inclined guide portion 53 during the insertion of the female terminal fitting 23, the front half of the female terminal fitting 23 is guided by the inclined guide portion 53 so that the lower wall of the housing portion is accommodated. The upper part of the front end of the female terminal fitting 23 protrudes upward from the opening 55 and comes into contact with the elastic pressing piece 61 of the outer housing 33.

  Further, when the female terminal fitting 23 is inserted, the front end portion of the female terminal fitting 23 is pushed back by the elastic pressing piece 61 to the housing lower wall 35a side, and the female terminal fitting 23 is pushed back. The locking groove 28 of the metal fitting 23 is locked by the retaining protrusion 51.

  According to the configuration of the connector 21 of the above embodiment, the retaining protrusion 51 of the inner housing 37 that retains the female terminal fitting 23 is elastic with respect to the insertion direction of the female terminal fitting 23 and the orthogonal direction thereof. A conventional connector in which the female terminal fitting is retained by a lance that is elastically displaced in a direction perpendicular to the insertion direction of the female terminal fitting because it is provided on the housing lower wall 35a that is a rigid structure partition wall that does not displace. Compared to the housing, there is no need to provide a large gap for the die-cutting structure of the molding die.

  In addition, the female terminal fitting 23 is attached to the terminal accommodating portion 35 with respect to the inner housing 37 in a temporarily locked state. When the inner housing 37 is pulled out from the outer housing 33, the female guide fitting 23 is removed from the inclined guide portion 53. Since the engagement between the retaining projection 51 and the female terminal fitting 23 can be easily released by the urging force acting on the mold terminal fitting 23, the removal jig hole for inserting the terminal removal jig is relatively It is not necessary to provide a large aperture adjacent to the terminal accommodating portion 35.

  Accordingly, the gaps and jig holes formed around the terminal accommodating portion 35 can be reduced, and the male terminal fitting of the mating connector can be disposed around the terminal accommodating portion 35 during the mating connection with the mating connector. The problem of deformation due to erroneous insertion into the gap or the jig hole can be avoided, and the connection with the mating connector can be reliably completed.

  The inner housing 37 does not require a lance that is elastically displaced in a direction orthogonal to the insertion direction of the female terminal fitting 23, and further, the outer housing is used to engage the female terminal fitting 23 with the retaining protrusion 51. Since the elastic pressing piece 61 provided in 33 may have a simple plate-like structure extending along the insertion direction of the inner housing 37, in these inner housing 37 and outer housing 33, the molding die can be removed. It will not be difficult. Therefore, in comparison with the conventional connector housing in which the female terminal fitting is prevented from being removed by the lance, it becomes easy to remove the molding die of each housing, and the structure of the molding die of the connector housing can be simplified. it can.

  When the female terminal fitting 23 is inserted into the terminal accommodating portion 35 of the inner housing 37 that is temporarily locked to the outer housing 33, the female terminal fitting 23 is normally removed from the terminal accommodating portion 35. When the insertion operation of the female terminal fitting 23 is finished before being locked to the stop protrusion 51, the female terminal fitting 23 remains in an incompletely inserted state in which the upper end of the front half projects into the opening 55. If the inner housing 37 is pushed into the outer housing 33 in this state, the female terminal fitting 23 in an incompletely inserted state is pushed out to the rear of the inner housing 37 due to interference with the elastic holding piece 61. The occurrence of the insertion state can be easily detected, and is effective in preventing incomplete insertion of the female terminal fitting 23.

  Further, according to the connector 21 of the above-described embodiment, the inner housing 37 is further inserted into the outer housing 33 in the normal fitting state in which the female terminal fitting 23 is locked by the retaining protrusion 51 of the terminal accommodating portion 35. Then, when substantially the entire inner housing 37 is inserted into the outer housing 33, the inner housing 37 is in the final locking state where it is coupled to the outer housing 33 at the final locking position.

  In this fully locked state, the terminal holding wall 63 provided in the outer housing 33 covers the opening 55 of the terminal accommodating portion 35 of the inner housing 37 and is accommodated and held in the terminal accommodating portion 35. 23, and the female terminal fitting 23 is kept locked by the retaining protrusion 51.

  That is, the terminal pressing wall 63 of the outer housing 33 functions as a double locking means for maintaining the state in which the retaining projection 51 of the terminal housing portion 35 is engaged with the female terminal fitting 23, and Secure the retaining performance.

  Since the terminal pressing wall 63 of the outer housing 33 that functions as a double locking means may be a rigid partition wall that is fixedly installed along the insertion direction of the inner housing 37, the molding die of the outer housing 33 is provided. It is suitable for simplification of the structure of the molding die of the outer housing 33 without making it difficult to perform die cutting.

  Further, in the connector 21 of the above-described embodiment, not only the retaining protrusion 51 on the bottom of the terminal accommodating portion 35 but also the terminal locking groove 57 on the accommodating portion side wall 35b is moved in the removing direction of the female terminal fitting 23. Therefore, the female terminal fitting 23 can be more securely prevented from coming off.

  Further, the terminal locking groove 57 on the inner housing 37 side is formed as a notch groove in the end portion of the housing portion side wall 35b of the terminal housing portion 35 as shown in the above embodiment, so that the mold of the molding die is formed. There is no reduction in punchability.

  Further, in the connector 21 according to the above-described embodiment, the elastic pressing piece 61 is set to the female terminal fitting 23 by setting the elastic force of the sliding projection 29 sliding on the inclined guide portion 53 to an appropriate strength. Thus, the resistance force when pushing the front half portion back toward the accommodating portion lower wall 35a can be adjusted, and the operability when the female terminal fitting 23 is attached can be improved.

  The present invention is not limited to the above-described embodiments, and can be appropriately modified and improved. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

DESCRIPTION OF SYMBOLS 21 Connector 23 Female terminal metal fitting 25 Terminal fitting part 25a Upper wall 26 Core wire crimping piece 27 Covering crimping part 28 Locking groove 31 Sliding protrusion 33 Outer housing 35 Terminal accommodating part 35a Accommodating part lower wall 35b Accommodating part side part Wall 35c Housing part upper wall 37 Inner housing 41 Connector lock part 43 Guide groove (housing locking means)
45 Locking recess (housing locking means)
47 First locking projection (housing locking means)
49 Second locking projection (housing locking means)
51 Retaining protrusion 53 Inclination guide (slope)
55 Opening 57 Terminal Locking Slot 61 Elastic Pressing Piece 63 Terminal Pressing Wall

Claims (3)

An outer housing;
An inner housing that has a terminal accommodating portion that accommodates a female terminal fitting and is inserted into and mounted on the outer housing;
The inner housing and the outer housing are connected at two positions, a temporary locking position where the front half of the inner housing is inserted into the outer housing and a final locking position where substantially the entire inner housing is inserted into the outer housing. A connectable housing locking means;
A connector with
The terminal receiving portion is formed to be raised on the front half side of the lower wall of the receiving portion and engages with a locking groove for retaining the female terminal fitting, thereby restricting movement of the female terminal fitting in the insertion / extraction direction. A retaining projection that protrudes from the side of the female terminal fitting so that the front end of the female terminal fitting does not interfere with the retaining projection when the female terminal fitting is inserted into the terminal accommodating portion. An inclined guide portion that lifts the front half of the female terminal fitting from the lower wall of the housing portion by guiding the sliding protrusion formed, and a front half portion of the upper wall of the housing portion that faces the housing lower wall are cut off. An opening through which the front half of the female terminal fitting, which is provided in a form and is lifted from the lower wall of the housing portion by guidance by the inclined guide portion, can be inserted;
The outer housing is provided with an elastic pressing piece extending along the insertion direction of the inner housing at a position facing the opening of the inner housing at the temporary locking position,
When the front end portion of the female terminal fitting inserted into the terminal housing portion of the inner housing at the temporary locking position protrudes from the opening portion by induction by the inclined guide portion, the elastic holding piece is moved to the front end of the female terminal fitting. The connector is pushed back to the housing lower wall side so that the locking groove of the female terminal fitting is locked by the retaining protrusion. The outer housing is fixedly equipped with a terminal pressing wall that covers the opening when the inner housing moves to the final locking position along the insertion direction of the inner housing,
The terminal holding wall holds the female terminal fitting held and held in the terminal containing portion from the lower wall of the containing portion, and the female terminal fitting is locked by the retaining protrusion. The connector according to claim 1, wherein the connector maintains a state.   When the retaining protrusion and the engaging groove are engaged with the accommodating portion side wall of the terminal accommodating portion, the female terminal fitting is moved in the removing direction by engaging with the sliding protrusion. The connector according to claim 1, further comprising a terminal locking groove to be regulated.

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