JP2017045572A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low profile connector by positioning a cover and a housing, without elongating the body in the fitting direction.SOLUTION: A connector 10 includes a housing 50 having an opening 51, and a cover 20 having a body 30 fitting to the opening 51. The housing 50 has a guide recess 59 opening to the fitting direction front side of the body 30 in the opening 51, and the cover 20 has a guide protrusion 37 fitting to the guide recess 59. When the guide protrusion 37 is fitted to the guide recess 59, the cover 20 and housing 50 are positioned in a direction orthogonal to the fitting direction, before the body 30 is fitted to the opening 51, and the guide protrusion 37 and guide recess 59 are elongated in a direction orthogonal to the fitting direction.SELECTED DRAWING: Figure 5

Description

  The technology disclosed by this specification is related with a connector.

  2. Description of the Related Art Conventionally, as a seal cover for closing a working opening provided in a case housing an in-vehicle electrical device, for example, one disclosed in JP 2012-236450 A (Patent Document 1 below) is known. The seal cover includes a cover body that is shaped to cover the opening of the case and is attached to the surface of the case, and a seal ring holding member that is disposed on the back side of the cover body so as to be fitted to the opening. Has been. The seal ring holding member has a main body extending in the fitting direction in accordance with the shape of the opening, and a seal mounting groove is formed over the entire circumference on the outer peripheral surface near the upper end of the main body. Yes. A seal ring having an oval ring shape is fitted in the seal mounting groove.

JP 2012-236450 A

  In the above-mentioned seal cover, in order to fit the cover main body into the opening and guide it to a normal posture, the lower part of the seal mounting groove in the main body is supported by extending in the fitting direction. If it does in this way, a cover main part will be guided to a regular fitting attitude | position in the process in which the lower part of a seal | sticker mounting groove | channel fits in an opening part among main body parts, and fitting can be performed smoothly. Here, even if the main body extends in the fitting direction, if the seal cover is of a type that pulls out the harness in the fitting direction, the main body is arranged using the accommodation space of the harness drawn in the fitting direction. This is not a big problem. However, in the case of a seal cover that pulls out the harness in a direction perpendicular to the mating direction, there is not enough space behind the mating direction of the seal cover, so the main body can be extended in the mating direction. It is also assumed that this is not possible.

  The connector disclosed by this specification is provided with the housing which has an opening part, and the cover which has a main-body part fitted to the said opening part, The said housing is a fitting direction front side with the said main-body part in the said opening part. The cover has a guide projection that fits into the guide recess, and the main projection fits into the opening when the guide projection fits into the guide recess. The cover and the housing are positioned in the direction orthogonal to the fitting direction before, and the guide protrusion and the guide recess are long in the direction orthogonal to the fitting direction.

  According to such a configuration, fitting guidance between the main body and the opening can be performed by fitting the guide protrusion into the guide recess. That is, if the guide protrusion of the cover is fitted into the guide recess of the housing, the main body can be fitted into the opening as it is. For this reason, unlike the conventional seal cover, it is not necessary to extend the main body portion in the fitting direction when positioning the cover with respect to the housing, and the connector can be reduced in height by avoiding an increase in size of the cover and the housing.

The connector disclosed by this specification is good also as the following structures.
The guide projection can be fitted inside the guide recess, and a rib extending in the fitting direction is formed on the outer peripheral side surface of the guide projection, and the rib is formed on the inner peripheral side surface of the guide recess. It is good also as a structure in which a pair of groove | channels in which squeeze enters are formed.
According to such a configuration, the cover can be positioned with respect to the housing also by fitting the guide projection into the guide recess and allowing the rib to enter the groove. Accordingly, the cover can be accurately positioned with respect to the housing.

The outer peripheral side surface of the guide protrusion is composed of a pair of long side surfaces extending in a direction orthogonal to the fitting direction, and a pair of short side surfaces connecting the pair of long side surfaces, and the rib is A pair of long side surfaces may be formed.
According to such a configuration, since the pair of ribs are provided on the pair of long side surfaces of the outer peripheral side surfaces of the guide protrusion, the guide protrusion becomes close to a cross shape, and the cover is accurately positioned in the rotational direction with respect to the housing. Can do.

The guide recess may be configured to protrude from the back wall of the opening, and the protruding end edge of the guide recess may be positioned closer to the back wall than the opening edge of the opening.
According to such a configuration, since the guide recess does not protrude from the opening edge of the opening, it is possible to avoid an increase in the size of the housing due to the guide recess.

The guide protrusion fitted in the guide recess may be configured to penetrate the back wall.
According to such a configuration, even when the guide protrusion is lengthened, the guide protrusion is arranged in a form penetrating the back wall, so it is not necessary to form a long guide recess according to the length of the guide protrusion. The housing does not increase in size.

  According to the technology disclosed in the present specification, the cover and the housing can be positioned without extending the main body portion in the fitting direction, so that the height of the connector can be reduced.

Front view of the cover in the embodiment Front view of housing Sectional drawing which showed the state before attaching a cover to the housing cut | disconnected in the position of CC line of FIG. Sectional drawing which showed the state before attaching the cover cut | disconnected in the position of the AA line of FIG. 1 to the housing cut | disconnected in the position of the BB line of FIG. FIG. 4 is a cross-sectional view showing a state after the guide protrusion is fitted in the guide recess and before the interlock connector is fitted in the hood portion from the state of FIG. 4. Sectional drawing which showed the state after fitting the interlock connector inside the hood part from the state of FIG. Sectional drawing which showed the state after fitting the main-body part inside the opening part from the state of FIG.

<Embodiment>
The embodiment will be described with reference to the drawings of FIGS. As shown in FIG. 3, the connector 10 of this embodiment includes a cover 20, a housing 50, and an interlock connector 70. The cover 20 can be fitted to the housing 50 from above.

  The cover 20 includes a main body 30 made of synthetic resin and a cover-side shield shell 40 fixed to the main body 30 with a bolt 41 with a washer. The main body 30 includes a flat plate-like substrate portion 31 that is arranged along the cover-side shield shell 40 and a seal ring holding portion 32 that protrudes from the substrate portion 31 in a cylindrical shape. A mounting groove 34 in which the seal ring 33 is mounted is provided on the outer peripheral side surface of the seal ring holding portion 32. A taper-shaped guide portion 35 is provided at the end of the seal ring holding portion 32 opposite to the substrate portion 31.

  An interlock connector 70 is attached to the lower surface of the substrate portion 31 (the surface on the seal ring holding portion 32 side). The interlock connector 70 is mounted so as to be movable along the lower surface of the substrate portion 31. A pair of female terminals 71 are accommodated inside the interlock connector 70, and these female terminals 71 are short-circuited by an electric wire or the like. The interlock connector 70 can be fitted with the device-side connector 2 connected to the interlock circuit on the device 1 side. The device 1 has a hood portion 3, and a pair of male terminals 4 are provided inside the hood portion 3. When the interlock connector 70 is fitted inside the hood part 3, the pair of female terminals 71 are connected to the pair of male terminals 4, respectively, and the interlock circuit is closed.

  On the other hand, a positioning pin 36 and a fastening boss 31B are provided on the upper surface of the substrate portion 31 (the surface opposite to the seal ring holding portion 32). The positioning pin 36 passes through a positioning hole 42 provided in the cover side shield shell 40. Further, the fastening boss 31 </ b> B penetrates the boss insertion hole 43 provided in the cover-side shield shell 40. A bolt 41 with a washer is fastened to the fastening boss 31B. The diameter of the boss insertion hole 43 is smaller than the diameter of the washer portion of the bolt 41 with washer. Therefore, the cover-side shield shell 40 is fixed by the washer-attached bolt 41 in a state where the cover-side shield shell 40 is positioned by the positioning pin 36 with respect to the main body portion 30.

  The housing 50 is made of synthetic resin, and includes an opening 51 into which the main body 30 of the cover 20 can be fitted from above, a terminal insertion portion 52 into which the bus bar terminal 60 can be inserted from the side, and the device 1. The connector fitting part 53 which can be fitted in the attachment hole 8 provided in the case 7 is provided. A housing side shield shell 45 is fitted on the terminal insertion portion 52, and the entire connector 10 is covered with the cover side shield shell 40 and the housing side shield shell 45. The housing-side shield shell 45 has a cylindrical connecting portion 46 that covers the terminal insertion portion 52, and a braided wire that covers the electric wire W is connected to the cylindrical connecting portion 46. The braided wire is crimped to the cylindrical connecting portion 46 by caulking the caulking ring 47.

  The bus bar terminal 60 is connected to the core wire W1 exposed at the end of the electric wire W. A rubber plug 61 is fitted into the insulating coating W2 of the electric wire W, and the rubber plug 61 is prevented from being detached by a back retainer 62. The inside of the terminal insertion part 52 is stopped by the rubber plug 61. The bus bar terminal 60 is prevented from coming off by a lance 54 provided in the terminal insertion portion 52.

  The connector fitting portion 53 has a back wall 55 that is arranged to face the substrate portion 31 of the cover 20. The back wall 55 has a sleeve insertion portion 56 through which the metal sleeve 48 is inserted, and a device-side connector insertion hole 57 through which the device-side connector 2 is inserted. A flange 49 is provided at the upper end of the metal sleeve 48 so as to protrude radially outward. Since the flange 49 is hooked on the upper end portion of the sleeve insertion portion 56, the metal sleeve 48 is prevented from falling off.

  Below the metal sleeve 48, a device-side conductive plate 5 provided on the device 1 side and a nut 6 are provided. When the bus bar terminal 60 is placed on the flange 49 of the metal sleeve 48, and the connection bolt 58 is inserted and fastened to the nut 6, the bus bar terminal 60 is sandwiched between the head of the connection bolt 58 and the flange 49, and the metal sleeve The device-side conductive plate 5 is sandwiched between the lower end portion of 48 and the nut 6. As a result, the bus bar terminal 60 and the device-side conductive plate 5 are connected via the metal sleeve 48 so as to be conductive.

  As shown in FIG. 1, a guide protrusion 37 is provided on the substrate portion 31 of the cover 20. The guide protrusion 37 has an oval shape that is long in a direction orthogonal to the fitting direction of the cover 20 and the housing 50. The outer peripheral side surface of the guide protrusion 37 includes a pair of long side surfaces 39A extending in a direction orthogonal to the fitting direction and a pair of short side surfaces 39B connecting the pair of long side surfaces 39A. In addition, a pair of ribs 38 are formed on the pair of long side surfaces 39A. One rib 38 is arranged facing the opposite side to the other rib 38.

  On the other hand, as shown in FIG. 2, a guide recess 59 is provided in the back wall 55 of the housing 50. The guide recess 59 has the same inner peripheral shape as the outer periphery of the guide protrusion 37, and the guide protrusion 37 is fitted with a slight clearance. Therefore, the guide recess 59 has a pair of grooves 63 into which the pair of ribs 38 of the guide protrusion 37 enters. The pair of grooves 63 are formed on a pair of opposed surfaces on the inner peripheral side surface of the guide recess 59.

  As shown in FIG. 4, the guide recess 59 is configured as a through hole penetrating in the fitting direction with the guide protrusion 37. For this reason, the guide recess 59 is configured to penetrate the back wall 55. Further, the guide recess 59 protrudes from the back wall 55 to the front side in the fitting direction with the main body 30 inside the opening 51 and opens to the front side in the fitting direction with the main body 30. Further, the protruding end of the guide recess 59 is located on the back wall 55 side with respect to the opening edge of the opening 51. In a state where the main body 30 is fitted into the opening 51, the guide protrusion 37 is fitted into the guide recess 59 in a form that penetrates the back wall 55.

  The present embodiment is configured as described above, and its operation will be described subsequently. When the cover 20 is fitted into the housing 50, the guide protrusion 37 starts to be fitted into the guide recess 59 before the main body 30 is fitted into the opening 51 as shown in FIG. At this time, the interlock connector 70 is not yet fitted inside the hood portion 3 of the device-side connector 2. Thus, when the guide protrusion 37 fits into the guide recess 59, the positioning of the cover 20 with respect to the housing 50 is completed in the direction orthogonal to the fitting direction.

  Subsequently, when the cover 20 is fitted into the housing 50, the interlock connector 70 starts to be fitted into the hood portion 3 of the device-side connector 2. When the fitting is further advanced, as shown in FIG. 6, the guiding portion 35 of the seal ring holding portion 32 interferes with the opening edge of the opening portion 51 and is drawn into a normal fitting posture. 32 begins to fit inside the opening 51. When the fitting is completed, as shown in FIG. 7, the outer portion 31 </ b> A of the seal ring holding portion 32 in the substrate portion 31 comes into contact with the opening edge of the opening 51, and the guide fitted in the guide recess 59. The protrusion 37 penetrates the back wall 55 and protrudes downward.

  In a state where the seal ring holding portion 32 is fitted inside the opening 51, the seal ring 33 is sandwiched between the bottom surface of the mounting groove 34 and the inner peripheral side surface of the opening 51, and the inside of the opening 51 Is stopped. In addition, the pair of female terminals 71 are connected to the pair of male terminals 4, respectively.

  As described above, in the present embodiment, the guide projection 37 can be fitted into the guide recess 59 to guide the fitting between the main body 30 and the opening 51. That is, if the guide protrusion 37 of the cover 20 is fitted into the guide recess 59 of the housing 50, the main body 30 can be fitted into the opening 51 as it is. For this reason, unlike the conventional seal cover, it is not necessary to extend the main body 30 in the fitting direction when positioning the cover with respect to the housing, avoiding an increase in the size of the cover 20 and the housing 50, and reducing the height of the connector 1. Can be

The guide protrusion 37 can be fitted into the guide recess 59. A rib 38 extending in the fitting direction is formed on the outer peripheral side surface of the guide protrusion 37, and the rib 38 is formed on the inner peripheral side surface of the guide recess 59. It is good also as a structure in which a pair of groove | channels 63 into which a gulf enters are formed.
According to such a configuration, the cover 20 can be positioned with respect to the housing 50 by causing the rib 38 to enter the groove 63 in addition to fitting the guide protrusion 37 into the guide recess 59. Therefore, the cover 20 can be accurately positioned with respect to the housing 50.

The outer peripheral side surface of the guide protrusion 37 includes a pair of long side surfaces 39A extending in a direction orthogonal to the fitting direction and a pair of short side surfaces 39B connecting the pair of long side surfaces 39A. May be configured as a pair formed on the pair of long side surfaces 39A.
According to such a configuration, since the pair of ribs 38 is provided on the pair of long side surfaces 39A among the outer peripheral side surfaces of the guide projection 37, the guide projection 37 is close to a cross shape, and the cover 20 is rotated in the rotational direction with respect to the housing 50. Positioning can be performed with high accuracy.

The guide recess 59 may be configured to protrude from the back wall 55 of the opening 51, and the protruding end edge of the guide recess 59 may be positioned closer to the back wall 55 than the opening edge of the opening 51.
According to such a configuration, since the guide recess 59 does not protrude from the opening edge of the opening 51, it is possible to avoid an increase in the size of the housing 50 due to the guide recess 59.

The guide protrusion 37 fitted in the guide recess 59 may be configured to penetrate the back wall 55.
According to such a configuration, even when the guide protrusion 37 is lengthened, the guide protrusion 37 is arranged in such a manner as to penetrate the back wall 55, so that the guide recess 59 is formed to be longer in accordance with the length of the guide protrusion 37. The housing 50 does not have to be enlarged.

<Other embodiments>
The technology disclosed in the present specification is not limited to the embodiments described with reference to the above description and drawings, and includes, for example, the following various aspects.
(1) Although the seal ring holding part 32 is fitted in the inside (inner circumference side) of the opening 51 in the above embodiment, the seal ring holding part fitted in the outer circumference side of the opening 51 may be used. .

  (2) In the above embodiment, the guide protrusion 37 is fitted inside the guide recess 59 (inner side), but may be a cylindrical guide protrusion fitted on the outer periphery side of the guide recess 59.

  (3) Although the guide protrusion 37 is oval in the above embodiment, it may be an elliptical guide protrusion or a rectangular guide protrusion with rounded corners.

  (4) Although the pair of ribs 38 are provided on the outer peripheral side surface of the guide protrusion 37 in the above embodiment, only one rib 38 may be provided on the outer peripheral side surface of the guide protrusion 37, or the short side of the outer peripheral side surfaces. Ribs 38 may be provided on the side surface 39B.

  (5) Although the guide recess 59 protrudes from the back wall 55 in the above embodiment, only a through hole that penetrates the back wall 55 is provided as a guide recess, and the guide protrusion is arranged according to the position of this through hole. It may be provided longer.

  (6) Although the guide protrusion 37 fitted in the guide recess 59 penetrates the back wall 55 in the above embodiment, it may be a guide protrusion that does not penetrate the back wall 55.

DESCRIPTION OF SYMBOLS 10 ... Connector 20 ... Cover 30 ... Main-body part 37 ... Guide protrusion 38 ... Rib 39A ... Long side surface 39B ... Short side surface 50 ... Housing 51 ... Opening 55 ... Back wall 59 ... Guide recessed part

Claims (5)

A housing having an opening;
A cover having a main body portion that fits into the opening,
The housing has a guide recess that opens to the front side in the fitting direction with the main body at the opening,
The cover has a guide projection that fits into the guide recess, and the cover and the housing are inserted into the opening before the body portion is fitted into the opening by fitting the guide projection into the guide recess. It is positioned in the direction perpendicular to the mating direction,
The connector, wherein the guide protrusion and the guide recess are long in a direction perpendicular to the fitting direction.   The guide projection can be fitted inside the guide recess, and a rib extending in the fitting direction is formed on the outer peripheral side surface of the guide projection, and the rib is formed on the inner peripheral side surface of the guide recess. The connector according to claim 1, wherein a pair of grooves into which the wire enters are formed.   The outer peripheral side surface of the guide protrusion is composed of a pair of long side surfaces extending in a direction orthogonal to the fitting direction, and a pair of short side surfaces connecting the pair of long side surfaces, and the rib is The connector according to claim 2, wherein a pair is formed on the pair of long side surfaces.   The said guide recessed part comprises the form which protrudes from the back wall of the said opening part, and the protrusion edge of the said guide recessed part is located in the said back wall side rather than the opening edge of the said opening part. The connector according to any one of 3.   The connector according to claim 4, wherein the guide protrusion fitted into the guide recess has a form penetrating the back wall.

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