connector

Abstract

To provide a connector excellent in installation workability of a fitting detection member into a housing.SOLUTION: A connector 1 includes a housing 2 which has a terminal accommodating chamber 13 capable of accommodating a terminal, and which can be fitted to a counterpart housing, and a fitting detection member 4 slidably attached to the housing 2 and capable of detecting fitting between the housing 2 and the counterpart housing. The fitting detection member 4 has a locking protrusion 43 to be locked to a locked protrusion 26 of the housing 2. In the housing 2, a space S allowing the locking protrusion 43 to pass in a slide direction of the fitting detection member 4 is defined between an outer peripheral surface 12a of the housing 2 and the locked protrusion 26. The locking protrusion 43 passes through the space S from a rear end toward a front end in the slide direction and is locked to the locked protrusion 26.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a connector. [Background technology]

[0002] Conventionally, connectors have been proposed that include a housing configured to be able to mate with a mating housing, and a mating detection member (also referred to as a "CPA") that is slidably attached to the housing and can detect the mating of the housing with the mating housing (see, for example, Patent Document 1). In conventional connectors, after the housing and the mating housing are mated, the mating detection member is configured to be slidable from a provisional locking position (initial position) to a full locking position (mating detection position). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-21644 Summary of the Invention [Problem to be solved by the invention]

[0004] In conventional connectors, the mating detection member is temporarily locked to the housing at a temporary locking position by riding over temporary locking projections or the like provided on the outer circumferential surface of the housing, and when the housing and the mating housing are mated, the temporary locking is released and the mating member slides over the temporary locking projections to the full locking projections. In this way, in conventional connectors, the mating detection member is configured to ride over and over locking portions (temporary locking projections and full locking projections) provided on the outer circumferential surface of the housing, so when attaching the mating detection member to the housing, it tends to be difficult to adjust the insertion posture of the mating detection member into the housing, for example, the insertion angle.

[0005] The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a connector that is easy to install a mating detection member into a housing. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the connector according to the present invention has the following features.

[0007] a housing having terminal accommodating chambers capable of accommodating terminals and capable of being fitted with a mating housing; a mating detection member slidably attached to the housing and capable of detecting mating between the housing and the mating housing; A connector comprising: The fitting detection member is a locking projection that is locked to the locked projection of the housing; The housing includes: a gap is defined between the outer peripheral surface of the housing and the locked projection, through which the locking projection can pass in the sliding direction of the fitting detection member; The locking projection passes through the gap from the rear end to the front end in the sliding direction and is locked by the locked projection, the housing has a locking mechanism that locks the mating housing when the housing is fitted to the mating housing, The locking mechanism includes a pair of left and right elastic arm pieces that are supported in a cantilevered manner on the outer peripheral surface of the housing and extend forward, a locking piece that connects front ends of the pair of left and right elastic arm pieces in the left-right direction and locks the mating housing when the housing is fitted with the mating housing, and a pair of left and right release arms that are supported in a cantilevered manner on the front ends of the pair of left and right elastic arm pieces and extend rearward, The engagement projection is provided at the center of the extension direction of the release arm. It is a connector. [Effects of the Invention]

[0008] According to the connector having the above configuration, the locking protrusion of the mating detection member passes through the gap formed between the outer peripheral surface of the housing and the locked protrusion from the rear end toward the front end in the sliding direction, and is locked by the locked protrusion. In this way, the locking protrusion does not climb over the locked protrusion provided on the outer peripheral surface of the housing, but passes through the gap between the outer peripheral surface of the housing and the locked protrusion (i.e., slips into the gap), so that the mating detection member can be slid along the outer peripheral surface of the housing. This reduces the complexity of the installation process, such as adjusting the installation (insertion) position of the mating detection member into the housing, and also makes the installation process of the mating detection member into the housing easier. Thus, the connector having the above configuration is superior to conventional connectors in terms of the ease of installation of the mating detection member into the housing.

[0009] The present invention has been briefly described above. The details of the present invention will become clearer by reading the following detailed description of the invention (hereinafter referred to as "embodiments") with reference to the accompanying drawings. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view of a connector according to one embodiment of the present invention. [Figure 2] 2 is a perspective view showing the connector shown in FIG. 1 before the fitting detection member is attached to the housing. [Figure 3] FIG. 3 is an exploded perspective view of the housing, the side retainer, and the seal member. [Figure 4] FIG. 4 is the first diagram for explaining the attachment of the fitting detection member to the housing, and corresponds to the cross section taken along line AA in FIG. [Figure 5] FIG. 5 is a second diagram for explaining the attachment of the fitting detection member to the housing, and corresponds to the cross section taken along line AA in FIG. [Figure 6] FIG. 6 is an enlarged view of part B in FIG. [Figure 7] FIG. 7 is a third diagram for explaining the attachment of the fitting detection member to the housing, and corresponds to the cross section taken along line AA in FIG. [Figure 8] FIG. 8 is an enlarged view of part C in FIG. [Figure 9] FIG. 9 is a cross-sectional view taken along line DD in FIG. 1 (however, terminals are not shown). DETAILED DESCRIPTION OF THE INVENTION

[0011] <Embodiment> A connector 1 according to one embodiment of the present invention will be described below with reference to the drawings.

[0012] For the sake of convenience, the following definitions are used for the terms "front," "rear," "left," "right," "upper," and "lower" as shown in Figures 1 to 9. The "front-rear direction," "left-right direction," and "up-down direction" are perpendicular to one another. The front-rear direction corresponds to the "sliding direction" of the present invention.

[0013] <Outline of Connector 1> The schematic configuration of connector 1 will be described below with reference to Figures 1 to 3. Connector 1 comprises a cylindrical housing 2, a side retainer 3 attached to housing 2, a mating detection member 4 slidably attached to the outer surface of housing 2, terminals (not shown, female terminals in this example) housed in housing 2, and an annular sealing member 6 attached to housing 2. In this example, connector 1 is a female connector configured to be matable with a mating connector (not shown, male connector) along the front-to-rear direction. <Housing 2> The housing 2 will be described below with reference to Figures 1 to 9. The housing 2 is made of synthetic resin and integrally comprises a cylindrical inner housing 11 and a cylindrical outer housing 12 that is spaced apart from and covers the outer peripheral surface of the inner housing 11 (see Figures 3 to 5). A housing of a mating connector (not shown, also referred to as "mating housing") is inserted into the gap between the outer peripheral surface of the inner housing 11 and the inner peripheral surface of the outer housing 12.

[0014] The inner housing 11 is formed with a plurality of (three in this example) terminal accommodating chambers 13 into which a plurality of terminals are respectively inserted from the rear. Each terminal accommodating chamber 13 is open to the outside through an opening at the front end of the inner housing 11, and a terminal of a mating connector (not shown, a male terminal also referred to as a "mating terminal") is inserted through this opening.

[0015] The inner housing 11 is formed to protrude forward beyond the front end surface of the outer housing 12, and a seal member 6 is attached to the cylindrical outer peripheral surface of the inner housing 11 covered by the outer housing 12. The inner housing 11 has a substantially rectangular semi-cylindrical front end 14 that protrudes forward from the outer housing 12, and a side retainer 3 is attached to the outer peripheral surface of the front end 14.

[0016] A locking mechanism 20 (see FIGS. 1 to 3) is provided on the upper outer peripheral surface 12a of the housing 2. The locking mechanism 20 has an elastically deformable locking arm 21 and an elastically deformable release arm 24 (see FIGS. 3 and 9).

[0017] The lock arm 21 is formed in a substantially rectangular U-shape, is supported in a cantilevered manner on the outer peripheral surface of the housing 2 (inner housing 11), and integrally includes a pair of left and right elastic arm pieces 22 extending forward substantially parallel to the outer peripheral surface of the inner housing 11, and a locking piece 23 bridging the front ends of the elastic arm pieces 22 in the left-right direction (see FIGS. 3 and 9). The locking piece 23 locks with a locking portion (not shown) of the mating housing when the connector 1 and the mating connector are fully mated.

[0018] The lock arm 21 is supported in a cantilevered manner at the front ends of a pair of elastic arm pieces 22, and is connected to a release arm 24 that is substantially rectangular and U-shaped and extends rearward (see FIGS. 3 and 9).

[0019] The release arm 24 has an unlocking operation portion 25 that is pressed down when the locking piece 23 is released from the locking portion of the mating housing (see FIGS. 3 and 9). The unlocking operation portion 25 is spaced apart from the housing 2 (inner housing 11) in the vertical direction and is positioned above the elastic arm piece 22. When the unlocking operation portion 25 is pressed down and displaced downward, an upward unlocking force is applied to the locking piece 23 via the release arm 24.

[0020] The housing 2 is provided with a pair of protective walls 16 that sandwich the lock arm 21 in the left-right direction (see FIGS. 2 and 3). The pair of protective walls 16 are erected on top of the outer housing 12 to protect the lock mechanism 20. A beam 17 is provided in front of the protective walls 16 (see FIGS. 2 and 3). Both left-right ends of this beam 17 are connected to the protective walls 16 and are disposed with a gap between them and the outer housing 12. The fitting detection member 4 is attached to the housing 2 in a space defined by the outer housing 12, the pair of protective walls 16, and the beam 17.

[0021] On both left and right side surfaces of the release arm 24, there is provided a locking projection 26 that protrudes toward the opposing protective wall portion 16 (see FIG. 4). On the lower end surface of the locking projection 26, there is provided an inclined surface 26a that slopes upward from the front to the rear, and a flat surface 26b that is located in front of the inclined surface 26a and formed so as to be approximately parallel to the outer circumferential surface 12a, so that they are continuous (see FIGS. 4, 6, and 8). A locking projection 43 of the fitting detection member 4, which will be described later, is locked to the locking projection 26.

[0022] The housing 2 is arranged such that the engaging projection 26 is positioned above the upper outer peripheral surface 12a of the housing 2, thereby forming a gap S between the outer peripheral surface 12a and the engaging projection 26, through which the engaging projection 43 of the engagement detection member 4 can pass in the forward and backward directions (see Figures 6 and 8 in particular).

[0023] <Side retainer 3> The side retainer 3 will be described below with reference to Figure 3. The side retainer 3 is made of synthetic resin and integrally comprises a retainer body 31 with a generally U-shaped cross section that opens to the left, and a retainer front plate portion 32 that closes the front end opening of the retainer body 31. The retainer front plate portion 32 has a plurality of insertion openings 33 (three in this example) formed therein that correspond to the plurality of terminal accommodating chambers 13. When the side retainer 3 is attached to the housing 2, the insertion openings 33 communicate with the terminal accommodating chambers 13 (see Figures 1 and 2), and mating terminals are inserted into the insertion openings 33.

[0024] The retainer body 31 is integrally formed of a retainer upper surface portion 34 and a retainer lower surface portion 35 that are spaced apart in the vertical direction and face each other, and a retainer curved surface portion 36 that connects the right end edge of the retainer upper surface portion 34 with the right end edge of the retainer lower surface portion 35. A rib-shaped retainer protrusion (not shown) that extends in the front-to-rear direction is provided on the left end edge of the retainer upper surface portion 34 and protrudes downward.

[0025] When the side retainer 3 is attached to the front end 14 of the inner housing 11, the opening on the left side of the side retainer 3 is slightly widened, and the front end 14 is inserted into the inside of the side retainer 3 through the opening and moved left and right. When the side retainer 3 is moved left and right, the retainer protrusions enter and engage locking grooves (reference numeral omitted) provided in the front end 14, thereby attaching the side retainer 3 to the housing 2. When the side retainer 3 is attached to the housing 2, unintentional removal (disengagement) of the terminals from the terminal accommodating chambers 13 is suppressed.

[0026] <Fitting detection member 4> The fitting detection member 4 will be described below with reference to Fig. 2 and Figs. 4 to 8. The fitting detection member 4 is made of synthetic resin, is attached to the rear of the housing 2, and is configured to be slidable in the front-to-rear direction. The fitting detection member 4 integrally includes a pair of side wall portions 41 facing each other in the left-to-right direction, and a support wall portion 42 bridging the rear of each upper end portion of the side wall portions 41 (see Fig. 2 in particular).

[0027] A locking projection 43 is provided on the opposing surface of each side wall 41, projecting toward the opposing side wall 41 so as to correspond to the locked projection 26 of the housing 2. An inclined surface 43a that slopes upward from the front to the rear and a flat surface 43b that is positioned behind the inclined surface 43a and extends in the front-to-rear direction (substantially parallel to the outer peripheral surface 12a of the housing 2) are provided on the upper end surface of the locking projection 43, and these surfaces are continuous with each other (see FIGS. 2, 4, 6, and 8). When the fitting detection member 4 passes through the gap S of the housing 2 and reaches the provisionally locked position, the locking projection 43 is locked by the locked projection 26 of the housing 2.

[0028] A slide operation portion 44 that is operated when sliding the fitting detection member 4 is provided to protrude from the upper end surface of the support wall portion 42 (see FIG. 2, etc.).

[0029] An arm piece 45 extending forward is provided at approximately the center in the left-right direction of the support wall portion 42 (see Figure 2, etc.). The arm piece 45 is supported by the support wall portion 42 in a cantilevered manner and is formed so as to tilt downward. A locking claw 46 extending downward is formed at the front end of the arm piece 45 (see Figure 2, etc.). The arm piece 45 is configured so that the locking claw 46 can swing upward and be elastically deformed, with the rear end serving as a fulcrum. When the fitting detection member 4 is in the temporary locking position, the locking claw 46 abuts against the rear end of the locking piece 23 of the housing 2 (see Figures 1 and 9), and is locked by the locking piece 23 when the fitting detection member 4 is in the full locking position (not shown).

[0030] <Assembly procedure for each component that makes up the connector 1> The following describes the procedure for assembling the components that make up the connector 1. First, the seal member 6 is attached to the housing 2, and then the terminals to which electric wires (not shown) are connected are accommodated in the terminal accommodating chambers 13 of the housing 2.

[0031] Next, the side retainer 3 is attached to the front end 14 of the inner housing 11. This prevents the terminal from coming off the side retainer 3. The side retainer 3 may be configured to be able to be provisionally and fully locked to the front end 14 of the inner housing 11. In this case, for example, with the side retainer 3 provisionally locked to the front end 14, the terminal is inserted into the terminal accommodating chamber 13, and then the side retainer 3 is slid relative to the front end 14 to be fully locked.

[0032] Next, the fitting detection member 4 is attached to the housing 2 from the rear to the provisionally locked position. Specifically, the fitting detection member 4 is brought close to the outer peripheral surface 12a of the housing 2 from above (see FIGS. 2 and 4). Once the fitting detection member 4 is placed on the outer peripheral surface 12a of the housing 2, the fitting detection member 4 is slid forward, for example, by placing a finger on the slide operation portion 44.

[0033] During the sliding of the fitting detection member 4, the locking protrusion 43 of the fitting detection member 4 comes into contact with the locked protrusion 26 of the housing 2 (see FIG. 5). Specifically, the inclined surface 43a of the locking protrusion 43 comes into contact with the inclined surface 26a of the locked protrusion 26 (see FIG. 6). When the sliding of the fitting detection member 4 continues in this state, the inclined surfaces 26a, 43a come into contact with each other, guiding the locking protrusion 43 to slip under the locked protrusion 26, causing the release arm 24 on which the locked protrusion 26 is provided to swing and lift the locking piece 23 upward, thereby widening the gap S and allowing the locking protrusion 43 to enter the gap S.

[0034] As the fitting detection member 4 continues to slide, the flat surface 43b of the locking projection 43 comes into contact with the inclined surface 26a and then the flat surface 26b of the locked projection 26, and passes through the gap S. When the locking projection 43 has completely passed through the gap S, the locking piece 23 that has been raised upward returns to its initial position (i.e., restored), the locking projection 43 is locked by the locked projection 26 (see Figures 7 and 8), and the fitting detection member 4 is attached to the housing 2 in the provisionally locked position. This completes the assembly of the components that make up the connector 1, and the connector 1 is completed.

[0035] <Mating procedure between connector 1 and the mating connector> The procedure for mating the connector 1 with the mating connector will be described below. The connector 1 is mated with the mating connector when the mating detection member 4 is provisionally locked to the housing 2. First, the mating housing is inserted between the outer peripheral surface of the inner housing 11 and the inner peripheral surface of the outer housing 12.

[0036] At this time, the locking portion of the mating housing moves rearward from below while elastically deforming locking piece 23 of housing 2, and the locking portion of the mating housing and locking piece 23 are locked together. As a result, locking claw 46 of arm piece 45 of fitting detection member 4 is lifted upward by the locking portion of the mating housing (i.e., arm piece 45 is elastically deformed), and the abutment state of locking claw 46 with the rear end of locking piece 23 is released.

[0037] In this state, when the mating detection member 4 is pushed forward to displace it to the full locking position, the locking claw 46 moves forward over the locking piece 23 from above, causing the arm piece 45 to recover from its elastic deformation and locking the locking claw 46 and the locking piece 23 (see FIG. 9). This completes the mating of the connector 1 with the mating connector. When the mating of the connector 1 and the mating connector is complete, the mating terminal is inserted into the terminal and electrically connected to the terminal.

[0038] <Procedure for disengaging connector 1 from the mating connector> The following describes the procedure for disengaging the mating between the connector 1 and the mating connector. To disengage the mating between the connector 1 and the mating connector, first, the mating detection member 4 is pulled backward and returned from the full-lock position to the partial-lock position.

[0039] Next, the unlocking operation portion 25 of the locking mechanism 20 in the housing 2 is pressed downward. This causes the unlocking arm 24 to swing, displacing the locking piece 23 of the locking arm 21 upward, and unlocking the locking piece 23 from the locking portion of the mating housing. In this state, the connector 1 and the mating connector are moved apart, thereby disengaging the connector 1 from the mating connector.

[0040] <Actions and Effects> According to the connector 1 of this embodiment, the locking projection 43 of the fitting detection member 4 passes through the gap S of the housing 2 and locks onto the locked projection 26, so compared to a configuration in which the locking projection rides over the locked projection, the fitting detection member 4 can simply be slid along the outer peripheral surface 12a of the housing 2, which reduces the complexity of the fitting operation due to, for example, adjusting the mounting (insertion) posture of the fitting detection member 4 into the housing 2 and makes it easier to fit the fitting detection member 4 into the housing 2. In this way, the connector 1 is superior to conventional connectors in terms of the workability of fitting the fitting detection member 4 into the housing 2.

[0041] Furthermore, according to the connector 1 of this embodiment, the upper end surface of the locking projection 43 and the lower end surface of the locked projection 26 are provided with inclined surfaces 43a and 26a that are sloped upward from the front end to the rear end, respectively, thereby guiding the locking projection 43 toward the gap S. Furthermore, by providing the inclined surfaces 43a and 26a on the locking projection 43 and the locked projection 26, the angle of entry (insertion) becomes acute as the locking projection 43 enters (inserts) into the gap S, and the entry (insertion) resistance when the locking projection 43 passes through the gap S is reduced. This makes it even easier to attach the fitting detection member 4 to the housing 2 of the connector 1.

[0042] <Other forms> The present invention is not limited to the above-described embodiments, and can be appropriately modified, improved, etc. Furthermore, the material, shape, size, number, location, etc. of each component in the above-described embodiments are arbitrary and not limited as long as they can achieve the present invention.

[0043] Here, the features of the above-described embodiments of the connector according to the present invention will be briefly summarized and listed below in [1] to [3].

[0044] [1] a housing (2) having a terminal accommodating chamber (13) capable of accommodating a terminal and capable of being fitted with a mating housing; a mating detection member (4) slidably attached to the housing (2) and capable of detecting mating between the housing (2) and the mating housing; A connector (1) comprising: The fitting detection member (4) is The housing (2) has a locking projection (43) that is locked to the locked projection (26), The housing (2) is a gap (S) through which the locking projection (43) can pass in the sliding direction (front-rear direction) of the fitting detection member (4) is defined between the outer peripheral surface (12a) of the housing (2) and the locking projection (26); The locking projection (43) passes through the gap (S) from the rear end (rear) to the front end (front) in the sliding direction and is locked by the locked projection (26). Connector(1).

[0045] According to the connector having the configuration [1] above, the locking protrusion of the mating detection member passes through the gap formed between the outer peripheral surface of the housing and the locked protrusion from the rear end toward the front end in the sliding direction, and is locked by the locked protrusion. In this way, the locking protrusion does not climb over the locked protrusion provided on the outer peripheral surface of the housing, but passes through the gap between the outer peripheral surface of the housing and the locked protrusion (i.e., slips into the gap), so that the mating detection member can be slid along the outer peripheral surface of the housing. This reduces the complexity of the installation process, such as adjusting the installation (insertion) position of the mating detection member into the housing, and also simplifies the installation process of the mating detection member into the housing. Thus, the connector having the above configuration is superior to conventional connectors in terms of the ease of installation of the mating detection member into the housing.

[0046] [2] In the connector (1) described in [1] above, The upper end surface of the locking projection (43) is an inclined surface (43a) formed in an upward inclination from the leading end (front) to the rear end (rear), and a flat surface (43b) positioned on the rear end side (rear side) of the inclined surface (43a) and formed to extend in the sliding direction (front-rear direction), are provided so as to be continuous with each other; The lower end surface of the engagement projection (26) is an inclined surface (26a) formed in an upward inclination from the tip (front) to the rear end (rear) and a flat surface (26b) positioned on the tip side (front side) of the inclined surface (26a) of the engagement projection and formed substantially parallel to the outer circumferential surface (12a) are provided so as to be continuous with each other; Connector(1).

[0047] According to the connector having the configuration [2] above, the upper end surface of the locking projection and the lower end surface of the locked projection are each provided with an inclined surface that slopes upward from the front to the rear, thereby guiding the locking projection toward the gap. Furthermore, by providing the inclined surfaces on the locking projection and the locked projection, as the locking projection enters (inserts) the gap, the angle of entry (insertion) becomes acute, thereby reducing the entry (insertion) resistance as the locking projection passes through the gap. This further facilitates the installation of the mating detection member into the housing in the connector having the above configuration.

[0048] [3] In the connector (1) described in [1] or [2] above, The housing (2) is an elastically deformable locking mechanism (20) that locks the mating housing when the mating housing is fitted to the mating housing and that has the locked projection (26) provided thereon; The fitting detection member (4) is The lock mechanism (20) has an elastically deformable arm piece (45) provided with a locking claw (46), and the locking claw (46) is capable of being locked by the lock mechanism (20). Before the housing (2) is fitted with the mating housing, at a temporary locking position where the locking projection (43) is locked with the locked projection (26), the locking claw (46) comes into contact with the locking mechanism (20, locking piece 23), and displacement of the fitting detection member (4) from the temporary locking position is restricted. When the housing (2) is fitted with the mating housing, the arm piece (45) is elastically deformed to release the contact state between the locking claw (46) and the locking mechanism (20), and the locking claw (46) can be displaced from the temporary locking position to a full locking position where it is locked with the locking mechanism (20, locking piece 23). Connector(1).

[0049] According to the connector having the configuration [3] above, similar to the configurations [1] and [2] above, the workability of attaching the fitting detection member to the housing is superior to that of conventional connectors. [Explanation of symbols]

[0050] 1 connector 2. Housing 3 Side Retainer 4. Fitting detection member 6 Sealing material 12a Outer surface 20 Locking mechanism 21 Lock Arm 22 Elastic arm piece 23 Locking piece 24 Release arm 25 Lock release operation part 26 Locked protrusion 26a Slope 26b flat surface 41 Side wall 42 Support wall section 43 Locking protrusion 43a Slope 43b flat surface 44 Slide operation section 45 arm piece 46 Locking claw S void

Claims

1. a housing having terminal accommodating chambers capable of accommodating terminals and capable of being fitted with a mating housing; a mating detection member slidably attached to the housing and capable of detecting mating between the housing and the mating housing; A connector comprising: The fitting detection member is a locking projection that is locked to the locked projection of the housing; The housing includes: a gap is defined between the outer peripheral surface of the housing and the locked projection, through which the locking projection can pass in the sliding direction of the fitting detection member; The locking projection passes through the gap from the rear end to the front end in the sliding direction and is locked by the locked projection, the housing has a locking mechanism that locks the mating housing when the housing is fitted to the mating housing, The locking mechanism includes a pair of left and right elastic arm pieces that are supported in a cantilevered manner on the outer peripheral surface of the housing and extend forward, a locking piece that connects front ends of the pair of left and right elastic arm pieces in the left-right direction and locks the mating housing when the housing is fitted with the mating housing, and a pair of left and right release arms that are supported in a cantilevered manner on the front ends of the pair of left and right elastic arm pieces and extend rearward, The engagement projection is provided at the center of the extension direction of the release arm. connector.

2. 2. The connector according to claim 1, The upper end surface of the locking projection is a first inclined surface formed in an upward inclined shape from the front end to the rear end, a first flat surface formed to be located rearward of the first inclined surface and extending in the sliding direction, and a first curved connecting surface connecting the first inclined surface and the first flat surface, The lower end surface of the engagement projection is a second inclined surface formed in an upward inclination from the front end to the rear end, a second flat surface positioned on the front end side of the second inclined surface and formed substantially parallel to the outer circumferential surface, and a second curved connecting surface connecting the second inclined surface and the second flat surface, an angle at which the first inclined surface is inclined with respect to the first flat surface is smaller than an angle at which the second inclined surface is inclined with respect to the second flat surface; connector.

3. The connector according to claim 1 or 2, The fitting detection member is an elastically deformable arm piece provided with a locking claw that can be engaged with the locking piece of the locking mechanism; Before the housing and the mating housing are fitted together, at a temporary locking position where the locking projection is locked to the locked projection, the locking claw abuts against the locking piece, and displacement of the fitting detection member from the temporary locking position is restricted; and when the housing and the mating housing are fitted together, the arm piece elastically deforms to release the abutment state between the locking claw and the locking piece, allowing displacement from the temporary locking position to a full locking position where the locking claw is locked to the locking piece. connector.

Images