JP2009238407A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector which suppresses a backlash between a connector housing and a counterpart connector housing to prevent a conduction failure by a terminal metal fixture. <P>SOLUTION: The connector 1 includes a female housing 6 and a sealing member 9. The female housing 6 has a cylindrical portion 7 into which a male housing 3 moves, and a body 8 which is housed in the cylindrical portion 7 and houses a female terminal. The sealing member 9 has a cylindrical seal body 40 extending along the outer periphery of the body 8, and an annular lip 43 projecting from the outer peripheral surface 41 of the seal body 40. The body 8 is disposed at a location further away from the male housing 3 than the sealing member 9, and has a supporting arm 36 having an outer surface 36a which is flush with the outer peripheral surface 41 of the seal body 40 and on which the front end 12 of the male housing 3 is superposed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a connector used for connecting electric wires, and more particularly to a connector having a vibration-resistant structure.

  A wide variety of electronic devices are mounted on automobiles as moving bodies. For this reason, the said automobile has wired the wire harness in order to transmit electric power, a control signal, etc. to the said electronic device. The wire harness includes a plurality of electric wires and a connector. The electric wire is a so-called covered electric wire including a conductive core wire and an insulating covering portion that covers the core wire. And these electronic devices and a wire harness are connected when the connector with which each was equipped fits.

  As the above-described connector, for example, a connector including a terminal fitting, a connector housing that accommodates the terminal fitting, and a seal member is used (see, for example, Patent Document 1). The terminal fitting is made of a conductive sheet metal and is electrically connected to the core wire of the electric wire.

  The connector housing is made of insulating synthetic resin, and has a box-shaped terminal accommodating portion that accommodates the terminal fitting, and a cylindrical hood portion that is provided outside the terminal accommodating portion and spaced from the terminal accommodating portion. And an annular connecting wall that connects the outer peripheral surface of the terminal housing portion on the front end side of the mating connector housing and the inner peripheral surface of the hood portion on the front end side in the intrusion direction. The connecting wall is provided with a pair of locking holes that penetrate the connecting wall and face each other with the terminal accommodating portion interposed therebetween.

  The seal member is made of an elastic material such as rubber, is formed in a cylindrical shape along the outer periphery of the terminal accommodating portion described above, and is attached to the outer periphery of the terminal accommodating portion near the connecting wall. Further, the seal member is provided with a pair of pressing portions that protrude from one end portion of the seal member on the connecting wall side and face each other with the main body portion interposed therebetween. The pressing portion is formed in an L shape in which an end portion on the side away from the sealing member protrudes toward the outer peripheral direction of the sealing member. The pressing portion is provided with a locking projection that protrudes from the end portion and engages with the locking hole described above.

In the connector described above, the mating connector housing enters between the terminal housing portion and the hood portion of the connector housing, and the sealing member is located on the outer peripheral surface of the terminal housing portion of the connector housing and the inner periphery of the mating connector housing. The connector housing and the mating connector housing are fitted to each other. The sealing member engages with the locking hole of the connecting wall of the connector housing, and the pressing portion is pressed toward the connecting wall by the tip of the mating connector housing. The space between the outer peripheral surface of the terminal accommodating portion and the inner peripheral surface of the mating connector housing is kept watertight.
JP 2006-156081 A

  However, in the connector disclosed in Patent Document 1 described above, the seal member is positioned between the outer peripheral surface of the main body portion of the connector housing and the inner peripheral surface of the mating connector housing. For this reason, there has been a problem that the mating connector housing rattles due to vibration. The rattling may cause the contact of the terminal fitting to wear and cause conduction failure. In the worst case, the terminal fitting may be damaged.

  Therefore, an object of the present invention is to provide a connector that can prevent rattling between terminal fittings by preventing backlash between the connector housing and the mating connector housing.

  In order to solve the above-described problems and achieve the object, the invention described in claim 1 includes a cylindrical portion that is formed in a cylindrical shape and into which a cylindrical mating connector housing enters, and is accommodated in the cylindrical portion. And a sealing member that is attached to the main body and that keeps watertight between the outer peripheral surface of the main body and the inner peripheral surface of the mating connector housing. And the seal member comprises: a seal body formed in a cylindrical shape along the outer periphery of the main body portion; and a lip protruding from the outer peripheral surface of the seal body in the outer peripheral direction of the seal body. The body portion is provided on a side farther from the mating connector housing than the seal body, and the outer surface is flush with the outer peripheral surface of the seal body and on the outer surface. A connector, wherein the penetration direction of the distal end portion of the serial mating connector housing is provided with a support portion to be overlaid.

  According to a second aspect of the present invention, in the first aspect of the present invention, the support portion is a locking projection that protrudes in a direction away from the seal body of the seal member from the mating connector housing. The seal body is provided in a lock portion provided in the main body portion that is attached to the main body portion.

  According to a third aspect of the present invention, in the invention of the second aspect, the lock portion is formed in an arm shape protruding from an outer peripheral surface of the main body portion and extending in a direction away from the mating connector housing. And a pair of support portions spaced apart from each other and a connecting portion for connecting the tip portions of the pair of support portions.

  According to the first aspect of the present invention, the main body of the connector housing is provided on the side of the seal member that is farther from the mating connector housing than the seal main body, and the outer surface is the same as the outer peripheral surface of the seal main body. Since the support portion is provided on the outer surface and on which the tip of the mating connector housing is superimposed, the tip of the mating connector housing is fitted when the connector housing and the mating connector housing are fitted together. It can suppress that a part rattles between the cylinder part of a connector housing, and a main-body part.

  According to the second aspect of the present invention, the support portion engages with the locking protrusion protruding from the seal body of the seal member in the direction away from the mating connector housing, and the seal body is moved to the body. When the connector housing and the mating connector housing are fitted to each other by the locking portion for attaching the seal body to the main body, the mating connector is provided. It can suppress that the front-end | tip part of a housing rattles between the cylinder part and main-body part of a connector housing.

  According to the third aspect of the present invention, the lock portion is formed in an arm shape protruding from the outer peripheral surface of the main body portion and extending away from the mating connector housing, and a pair of supports spaced apart from each other And a connecting portion that connects the tip portions of the pair of support portions, so that the lock portion connects the locking projection through the locking projection of the seal member between the pair of support portions. It is possible to engage with the locking projection by positioning the tip of the locking projection on the side away from the mating connector housing of the connecting portion. Further, by providing the pair of support arms so as to protrude from the outer peripheral surface of the main body, it is possible to prevent the shape of the connector housing from becoming complicated.

  As described above, according to the first aspect of the present invention, when the connector housing and the mating connector housing are fitted, the distal end portion of the mating connector housing is connected to the cylindrical portion and the main body portion of the connector housing. Can be prevented from rattling between the two. For this reason, backlash between the connector housing and the mating connector housing can be suppressed to prevent conduction failure due to wear of the terminal fittings.

  According to the second aspect of the present invention, when the connector housing and the mating connector housing are fitted to each other by the lock portion that attaches the seal body to the main body, the tip of the mating connector housing is the tube of the connector housing. It is possible to suppress the rattling between the part and the main body part. For this reason, the increase in a number of parts and an assembly operation man-hour can be suppressed.

  According to the third aspect of the present invention, the lock portion is inserted between the connection portion and the main body portion through the engagement protrusion of the seal member between the pair of support portions, By positioning the tip of the locking projection on the side away from the mating connector housing, the locking projection can be engaged. For this reason, the lock portion can be engaged with the locking protrusion of the seal member in a state where the locking protrusion is sandwiched between the main body portion and the main body portion to which the seal member is attached and the tube portion. The interval can be reduced. Therefore, the connector housing can be reduced in size.

  Further, by providing the pair of support arms so as to protrude from the outer peripheral surface of the main body portion, it is possible to suppress the complexity of the shape of the connector housing, and thus the complexity of the mold structure for manufacturing the connector housing. Can be suppressed.

  A connector according to a first embodiment of the present invention will be described below with reference to FIGS. A connector 1 according to the first embodiment of the present invention is fitted with a mating connector 2 shown in FIG. 14 to constitute a wire harness routed in an automobile or the like.

  14 to 16, the mating connector 2 includes a plurality of male terminal fittings (not shown) (hereinafter referred to as male terminals) and a male connector housing (hereinafter referred to as male housing) 3. And.

  Each of the plurality of male terminals is made of a conductive sheet metal or the like, and is attached to a terminal of an electric wire (not shown). Each of the plurality of male terminals is integrally provided with an electric wire connecting portion connected to the electric wire and a prismatic male tab connected to the electric wire connecting portion. When the male housing 3 and a female housing 6 to be described later are fitted, the male tab enters the terminal accommodating chamber 34 of the main body portion 8 of the female housing 6, and the female terminal in the terminal accommodating chamber 34 is inserted. Electrically and mechanically.

  The male housing 3 is made of an insulating synthetic resin or the like, and includes a terminal housing portion 4 and a cylindrical hood portion 5 connected to the terminal housing portion 4 as shown in FIG. The terminal accommodating portion 4 is formed in a box shape having a plurality of outer walls 10 and accommodates mainly the electric wire connecting portion of the male terminal described above on the inner side.

  The hood portion 5 protrudes from one outer wall 10 (indicated by reference numeral 10a in FIGS. 15 and 16) of the terminal accommodating portion 4 facing a female housing 6 described later, and from the one outer wall 10a toward the female housing 6. The peripheral wall 11 that extends is formed in a cylindrical shape. The hood part 5 accommodates the male tab mainly of the male terminal mentioned above inside.

  In the hood portion 5, the distal end portion 12 side away from the terminal accommodating portion 4 of the peripheral wall 11 is open to the hood portion 5, that is, the outer surface of the male housing 2. In other words, the hood portion 5 has an opening on the outer surface of the hood portion 5, that is, the male housing 2, at the distal end portion 12 side in the insertion direction to be inserted into a cylindrical portion 7 of the female housing 6 described later. And the hood part 5 is accommodated in the cylinder part 7 of the female housing 6 mentioned later, and accommodates the main-body part 8 of the female housing 6 inside.

  The hood portion 5 is provided with guide ribs (not shown) and lock protrusions 15. The guide rib protrudes from the peripheral wall 11 of the hood portion 5 toward the outside of the hood portion 5 and along a fitting direction K (shown in FIG. 15 or FIG. 16) between the male housing 3 and the female housing 6 described later. It is extended. A pair of guide ribs are provided in parallel with each other in the width direction (left-right direction in FIG. 16) perpendicular to the fitting direction K of the hood portion 5. And a pair of guide rib penetrate | invades in the guide recessed part 26 of the cylinder part 7 of the female housing 6 mentioned later, and makes the male housing 3 and the female housing 6 fit in the correct direction.

  The lock protrusion 15 is formed so as to protrude from the peripheral wall 11 of the hood portion 5 toward the outside of the hood portion 5. The lock projection 15 holds the fitting between the male housing 3 and the female housing 6 by engaging with a through hole 29a of a lock arm 27 provided in a cylindrical portion 7 of the female housing 6 described later.

  The above-described arrow K (shown in FIG. 15 or FIG. 16) indicates a direction in which the male housing 3 and the female housing 6 described later are fitted to each other, and the direction in which they are fitted to each other. I am doing. And the male housing 3 of the structure mentioned above is corresponded in the connector housing of the other party as described in a claim.

  As shown in FIG. 1, the connector 1 includes a female terminal fitting (not shown) (hereinafter referred to as a female terminal), a female connector housing (hereinafter referred to as a female housing) 6, and a seal member 9. I have.

  The female terminal is made of a conductive sheet metal or the like, and is attached to an end of an electric wire (not shown). The female terminal is integrally provided with an electric wire connecting portion connected to the electric wire and an electric contact portion connected to the male tab of the male terminal described above. The female terminal is electrically connected to the male terminal of the male housing 3 when the male housing 3 and the female housing 6 described above are fitted. This female terminal corresponds to the terminal fitting described in the claims.

  The female housing 6 is made of an insulating synthetic resin or the like, and as shown in FIG. 1 or FIG. 2, a cylindrical portion 7 formed in a cylindrical shape on the outer side, and the female terminal housed in the cylindrical portion 7 and described above And a main body portion 8 for housing the container. The female housing 6 corresponds to the connector housing described in the claims.

  As shown in FIGS. 1 to 4, the cylindrical portion 7 is formed in a bottomed cylindrical shape, and includes a bottom wall 20 and a peripheral wall 21 erected from the outer peripheral edge of the bottom wall 20. The cylindrical part 7 is formed so that the inner periphery of the peripheral wall 21 is larger than the outer periphery of the hood part 5 of the male housing 3 described above. The cylindrical portion 7 has one end 22 on the side away from the bottom wall 20 of the peripheral wall 21, that is, on the side facing the male housing 3, and opens on the outer surface of the cylindrical portion 7, the female housing 6.

  The cylindrical portion 7 accommodates the main body portion 8 on the inner side, and an inner peripheral surface 25 of the peripheral wall 21 is arranged at a distance from an outer peripheral surface 33 (described later) of the main body portion 8. Further, the cylindrical portion 7 is provided with a guide recess 26 and a lock arm 27.

  As shown in FIG. 2, the guide recess 26 is formed in a concave groove shape from the inner peripheral surface 25 of the peripheral wall 21 of the cylindrical portion 7, and the fitting direction K between the male housing 3 and the female housing 6 (see FIG. 2). 15 or (shown in FIG. 16). A pair of guide recesses 26 are provided in parallel with each other in the width direction (left-right direction in FIG. 2) perpendicular to the fitting direction K of the cylindrical portion 7. Each of the guide ribs of the male housing 3 described above enters the pair of guide recesses 26 to fit the male housing 3 and the female housing 6 in the correct orientation.

  As shown in FIG. 1 or FIG. 2 and FIG. 15, the lock arm 27 includes a standing portion 28 erected from the other end portion 23 on the side away from the male housing 3 of the peripheral wall 21 of the cylindrical portion 7, An arm portion 29 is provided integrally with the end portion 28 on the side away from the peripheral wall 21 of the installation portion 28 and extends in the direction from the other end portion 23 of the cylindrical portion 7 toward the one end portion 22. The arm portion 29 is provided with a through hole 29a. The lock arm 27 holds the fitting between the male housing 3 and the female housing 6 by engaging the lock protrusion 15 of the male housing 3 with the through hole 29 a of the arm portion 29.

  As shown in FIG. 1 or FIG. 4, the main body portion 8 is opposed to the male housing 3 described above and has a relative wall 30 provided with a plurality of holes 30a through which male tabs of male terminals of the male housing 3 pass. It is formed in a box shape provided with a peripheral wall 31 erected from the outer edge of the relative wall 30. The end 32 on the side away from the relative wall 30 of the peripheral wall 31 is connected to the inner surface of the bottom wall 20 of the hood 5 described above. The main body 8 is provided with a plurality of terminal accommodating chambers 34 therein. The main body 8 accommodates the female terminals described above in each terminal accommodating chamber 34.

  Each of the plurality of terminal accommodating chambers 34 is a linear space provided in the main body 8, and the longitudinal direction is formed in parallel with the fitting direction K between the male and female housings 3 and 6. Each of the plurality of terminal accommodating chambers 34 has an opening in the longitudinal direction at the outer surface of the main body 8, that is, the female housing 6. The plurality of terminal accommodating chambers 34 are arranged in parallel to each other, and are arranged in parallel along the width direction (left-right direction in FIG. 2) orthogonal to the fitting direction K of the main body 8. A locking lance (not shown) that is flexible and can be locked to the female terminal is provided on the inner surface of the terminal accommodating chamber 34. The locking lance is locked to the female terminal and restricts the female terminal from coming out of the terminal accommodating chamber 34.

  Further, the main body portion 8 is provided with a lock portion 35 that engages with a locking projection 45 described later of the seal member 9. A pair of lock portions 35 are provided in the width direction (left-right direction in FIG. 2) perpendicular to the fitting direction K between the male and female housings 3, 6 of the main body portion 8. As shown in FIG. 3 or FIG. 4, the pair of lock portions 35 is provided near the end portion 32 of the peripheral wall 31 of the main body portion 8, and includes a pair of support arms 36 and a distal end portion 37 of the support arm 36. The planar shape is formed in U shape including the connection part 39 which connects each other.

  Each of the pair of support arms 36 protrudes from the outer peripheral surface 33 of the peripheral wall 31 of the main body 8 and extends in a direction approaching one outer wall 10 a of the hood portion 5, that is, a direction away from the male housing 3. Is formed. That is, each of the pair of support arms 36 has a base end portion 38 on the side away from the one outer wall 10 a connected to the outer peripheral surface 33 of the peripheral wall 31 and a tip end portion 37 on the one outer wall 10 a side of the peripheral wall 31. The outer circumferential surface 33 is formed with a gap.

  The pair of support arms 36 are provided such that the longitudinal direction thereof is parallel to the fitting direction K between the male and female housings 3 and 6. The pair of support arms 36 are provided in parallel and spaced apart from each other in the thickness direction (vertical direction in FIG. 4) perpendicular to the fitting direction K between the male and female housings 3 and 6 of the main body 8 described above. It has been. The support arm 36 forms a support portion described in the claims.

  The connecting portion 39 is formed in a prismatic shape, and connects the tip portions 37 of the pair of support arms 36 described above. The connecting portion 39 is provided at a distance from the outer peripheral surface 33 of the peripheral wall 31 of the main body portion 8.

  The lock portion 35 having the above-described configuration is formed such that the distal end portions 37 of the pair of support arms 36 can be elastically deformed in a direction away from the outer peripheral surface 33 of the peripheral wall 31 of the main body portion 8, and the connecting portion 39 is the peripheral wall of the main body portion 8. It can freely contact (separate from or move away from) the outer circumferential surface 33 of 31.

  As shown in FIGS. 1, 5, and 8, the seal member 9 is made of an elastic material such as rubber, and includes a seal body 40 and a lip 43.

  The seal body 40 is formed in a cylindrical shape along the outer periphery of the peripheral wall 31 of the main body 8. The seal body 40 is attached to the outer peripheral surface 33 near the end 32 of the peripheral wall 31 of the main body portion 8 through the main body portion 8 on the inner side, and on the male housing 3 side of the pair of support arms 36 of the lock portion 35 described above. Has been placed. The seal body 40 is formed so that the outer peripheral surface 41 of the seal body 40 is flush with the outer surfaces 36 a of the pair of support arms 36. The seal body 40 is provided with a locking projection 45 that protrudes from the outer peripheral edge of the seal body 40.

  A pair of locking projections 45 are provided in the width direction of the seal body 40 (left and right direction in FIG. 5). The pair of locking protrusions 45 are each formed in a prismatic shape extending from the outer peripheral edge of the seal body 40 along the axial direction of the seal body 40. The pair of locking projections 45 protrude toward the direction in which the distal end portions 37 of the pair of locking projections 45 are separated from the male housing 3 when the seal body 40 is attached to the main body portion 8 of the female housing 6. It is provided to do.

  The lip 43 is formed in an annular shape protruding from the outer peripheral surface 41 of the seal main body 40 in the outer peripheral direction of the seal main body 40. A plurality of lips 43 are provided on the outer peripheral surface 41 of the seal body 40, and are arranged in parallel with each other along the axial direction of the seal body 40.

  When the seal body 40 is attached to the body portion 8 of the female housing 6 and the male and female housings 3 and 6 are fitted to each other, the seal body 40 is configured so that the seal body 40 is male as shown in FIG. A plurality of lips 43 of the seal body 40 are positioned between the hood portion 5 of the housing 3 and the peripheral wall 31 of the main body portion 8 of the female housing 6, and the inner peripheral surface 14 of the hood portion 5 and the outer peripheral surface 33 of the main body portion 8. Are closely attached to each other, and the space between the inner peripheral surface 14 and the outer peripheral surface 33 is kept watertight.

  When the female housing 6 of the connector 1 having the above-described configuration and the male housing 3 of the mating connector 2 are fitted, first, before the female housing 6 and the male housing 3 are fitted, the female housing 6 is preliminarily fitted. While accommodating the female terminal with an electric wire in the terminal accommodating chamber 34 of the main-body part 8, the male terminal with an electric wire is accommodated in the terminal accommodating part 4 of the male housing 2. FIG. And the sealing member 9 is attached to the main-body part 8 of the female housing 6 using the assembly | attachment jig | tool 50 shown in FIG.

  The assembling jig 50 includes a jig body 51 formed in a flat plate shape and a pair of jig protrusions 52 protruding from the jig body 51 and spaced from each other. Two 52 are provided in the longitudinal direction of the jig body 51. That is, four locking protrusions 52 are provided so as to protrude from the jig body 51.

  In order to attach the seal member 9 to the main body portion 8 of the female housing 6, first, as shown in FIG. 8, the assembly jig 50 is made to face the end portion 32 side of the main body portion 8 of the female housing 6, The jig main body 51 of the assembling jig 50 is brought close to the main body 8, and as shown in FIG. 5 or 9, the pair of jig protrusions 52 are respectively connected to the support arms 36 and the main body 8 of the lock part 35. Insert between. Then, as shown in FIG. 11, the pair of support arms 36 of the lock portion 35 are elastically deformed in a direction in which the connecting portion 39 of the lock portion 35 is separated from the main body portion 8.

  Next, as shown in FIG. 6, the seal member 9 is inserted between the cylindrical portion 7 and the main body portion 8 of the female housing 6 from the side of the locking projection 45 of the seal main body 40 of the seal member 9, and the seal main body 8 is inserted. The seal body 40 is pushed toward the end side of the main body 8 through the main body 8 inside the main body 40. Then, as shown in FIG. 12, the locking projection 45 of the seal body 40 is inserted between the pair of support arms 36 of the lock portion 35, and the locking projection 45 is interposed between the connecting portion 39 and the body portion 8. Break into.

  Then, the jig main body 51 of the attachment jig 50 is pulled away from the female housing 6, and the pair of jig protrusions 52 are pulled out from between the support arms 36 of the lock portion 35 and the main body portion 8 of the female housing 6. Then, as shown in FIG. 13, the pair of support arms 36 of the lock portion 35 are elastically restored in the direction in which the connecting portion 39 of the lock portion 35 approaches the main body portion 8, thereby The distal end portion 46 is positioned on the side away from the pair of support arms 36 of the connecting portion 39 of the lock portion 35, that is, on the side away from the male housing 3, and the lock portion 35 engages with the locking protrusion 45. At this time, the locking protrusion 45 is in close contact with the outer peripheral surface 33 of the main body 8 of the female housing 6.

  Thus, the seal body 40 is positioned on the male housing 3 side of the pair of support arms 36 of the lock portion 35, and the locking projection 45 is engaged with the lock portion 35, so that the seal body 40 is the body portion of the female housing 6. The seal member 9 is attached to the main body portion 8 of the female housing 6.

  Subsequently, in order to fit the female housing 6 of the connector 1 and the male housing 3 of the mating connector 2, first, the female housing 6 of the connector 1 and the male housing 3 of the mating connector 2 are opposed to each other. Then, the female housing 6 and the male housing 3 are brought close to each other, and the distal end portion 12 of the peripheral wall 11 of the hood portion 5 of the male housing 3 is inserted between the cylindrical portion 7 and the main body portion 8 of the female housing 6. .

  At this time, the pair of guide ribs provided in the hood portion 5 of the male housing 3 enters the guide recess 26 of the cylindrical portion 7 of the female housing 6, and the hood portion 5 of the male housing 3 is inserted into the cylindrical portion 7 of the female housing 6. Enter in the correct direction.

  Then, the arm portion 29 of the lock arm 27 provided on the cylindrical portion 7 of the female housing 6 comes into contact with the lock projection 15 of the male housing 3, and the arm portion 29 is elastically deformed and pushed up to the lock projection 15. Furthermore, when the female housing 6 and the male housing 3 are brought closer to each other, the distal end portion 12 of the hood portion 5 of the male housing 3 is located between the peripheral wall 21 of the cylindrical portion 7 of the female housing 6 and the seal body 40 of the seal member 9. While entering, the arm portion 29 of the lock arm 27 is further pushed up by the lock projection 15 of the male housing 3.

  Then, as shown in FIG. 15 or FIG. 16, the arm portion 29 of the lock arm 27 gets over the lock projection 15, and the lock projection 15 enters and engages with the through hole 29 a of the arm portion 29. As shown in FIG. 17, the distal end portion 12 of the peripheral wall 11 of the third hood portion 5 penetrates to the end portion 32 side of the peripheral wall 31 of the main body portion 8 between the cylindrical portion 7 and the main body portion 8 of the female housing 6. Then, the distal end portion 12 of the hood portion 5 overlaps the outer surface 36 a of each support arm 36 of the pair of lock portions 35 provided on the main body portion 8 of the female housing 6.

  Thus, the female housing 6 of the connector 1 and the male housing 3 of the mating connector 2 are fitted.

  According to the present embodiment, the main body 8 of the female housing 6 is provided on the side farther from the male housing 3 than the seal main body 40 of the seal member 9, and the outer surface 36 a is the same as the outer peripheral surface 41 of the seal main body 40. A support arm 36 is provided which is on the surface and on which the front end portion 12 of the hood portion 5 of the male housing 3 is superimposed on the outer surface 36a.

  For this reason, when the female housing 6 and the male housing 3 are fitted to each other, the front end portion 12 of the hood portion 5 of the male housing 3 is prevented from rattling between the cylindrical portion 7 and the main body portion 8 of the female housing 6. be able to. Therefore, rattling between the female housing 6 and the male housing 3 can be suppressed, and poor conduction due to wear of the female terminal and the male terminal can be prevented.

  Further, the support arm 36 engages with a locking projection 45 that protrudes from the seal body 40 of the seal member 9 in a direction away from the male housing 3, so that the seal body 40 is engaged with the body portion 8 of the female housing 6. It is provided in the lock part 35 provided in this main-body part 8 to attach.

  Therefore, when the female housing 6 and the male housing 3 are fitted to each other by the lock portion 35 that attaches the seal main body 40 of the seal member 9 to the main body portion 8 of the female housing 6, the distal end portion of the hood portion 5 of the male housing 3. It is possible to suppress the backlash of 12 between the cylindrical portion 7 and the main body portion 8 of the female housing 6. Therefore, an increase in the number of parts and assembly man-hours can be suppressed.

  Further, the lock portion 35 is formed in an arm shape protruding from the outer peripheral surface 33 of the main body portion 8 of the female housing 6 and extending away from the male housing 3, and a pair of support arms 36 spaced apart from each other, And a connecting portion 39 for connecting the tip portions 37 of the pair of support arms 36 to each other.

  For this reason, the locking part 35 passes the locking projection 45 of the seal body 40 of the seal member 9 between the pair of support arms 36 and inserts the locking projection 45 between the connecting part 39 and the body part 8 of the female housing 6. It is possible to engage with the locking projection 45 by intruding and positioning the distal end portion 46 of the locking projection 45 on the side away from the male housing 3 of the connecting portion 39. Therefore, the lock portion 35 can be engaged with the locking projection 45 of the seal member 9 in a state of being sandwiched between the locking projection 45 and the main body portion 8 of the female housing 6, and the seal member 9 is attached. The interval between the main body portion 8 and the cylinder portion 7 can be reduced. Therefore, the size of the female housing 6 can be reduced.

  Further, by providing the pair of support arms 36 so as to protrude from the outer peripheral surface 33 of the main body portion 8 of the female housing 6, it is possible to prevent the shape of the female housing 6 from becoming complicated, and thus the female housing 6 is manufactured. Therefore, it is possible to suppress the complication of the mold structure.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

It is a disassembled perspective view which shows the connector concerning embodiment of this invention. It is the top view which looked at the connector housing of the connector shown by FIG. 1 from the side relatively shown with the other party connector housing. It is sectional drawing which follows the III-III line | wire in FIG. It is sectional drawing which follows the IV-IV line | wire in FIG. It is explanatory drawing which shows the state by which the assembly jig | tool was attached to the connector housing shown by FIG. It is explanatory drawing which shows the state in the middle of attaching the sealing member shown by FIG. 5 to a connector housing. It is explanatory drawing which shows the state which attached the seal member shown by FIG. 6 to the connector housing. It is explanatory drawing which shows the state which made the seal member and the assembly | attachment jig | tool oppose to the connector housing shown by FIG. It is explanatory drawing which shows the state in the middle of attaching the sealing member shown by FIG. 8 to a connector housing. It is explanatory drawing which shows the state which attached the seal member shown by FIG. 9 to the connector housing. It is sectional drawing which expands and shows the XI part in FIG. It is sectional drawing which expands and shows the XII part in FIG. It is sectional drawing which expands and shows the XIII part in FIG. It is a top view which shows the state which the other party connector housing fitted to the connector housing shown by FIG. It is sectional drawing which follows the XV-XV line | wire in FIG. It is sectional drawing which follows the XVI-XVI line | wire in FIG. It is sectional drawing which expands and shows the XVII part in FIG.

Explanation of symbols

1 Connector 3 Male housing (mating connector housing)
6 Female housing (connector housing)
7 cylinder portion 8 body portion 9 seal member 12 tip portion 14 inner peripheral surface 33 outer peripheral surface 35 lock portion 36 support arm (support portion)
36a Outer surface 37 Tip 39 Connecting portion 40 Seal body 41 Outer peripheral surface 43 Lip 45 Locking protrusion

Claims (3)

A connector housing comprising a cylindrical portion that is formed in a cylindrical shape and into which a cylindrical mating connector housing enters, and a main body portion that is accommodated in the cylindrical portion and accommodates a terminal fitting;
In a connector comprising: a seal member attached to the main body part and maintaining watertightness between the outer peripheral surface of the main body part and the inner peripheral surface of the mating connector housing;
The seal member includes a seal body formed in a cylindrical shape along the outer periphery of the main body, and a lip protruding from the outer peripheral surface of the seal body in the outer peripheral direction of the seal body,
The main body is provided on a side farther from the mating connector housing than the seal main body, an outer surface is flush with an outer peripheral surface of the seal main body, and the mating connector housing is on the outer surface. A connector having a support portion on which a tip portion in the intrusion direction is overlapped.   The support portion engages with a locking protrusion that protrudes in a direction away from the mating connector housing from the seal body of the seal member, and the body portion that attaches the seal body to the body portion The connector according to claim 1, wherein the connector is provided in a lock portion provided.   A pair of the support portions formed in an arm shape protruding from the outer peripheral surface of the main body portion and extending away from the mating connector housing and spaced apart from each other, and the pair of support portions The connector according to claim 2, further comprising: a connecting portion that connects the tip portions of each other.

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