JP5551941B2 - connector - Google Patents

Description

  The present invention relates to a connector.

  Conventionally, as shown in FIG. 16, a substantially rectangular parallelepiped housing 101, a contact 103 arranged in parallel on one surface of the housing 101 along the longitudinal direction of the housing 101, and connected to each conductor of the flat cable 102, a housing A connector is provided that includes a metal cover 104 that covers the housing 101 and holds the flat cable 102 together with the housing 101 (see, for example, Patent Document 1). Hereinafter, the vertical and horizontal directions in FIG. 16 are used as a reference, and the direction orthogonal to the vertical and horizontal directions is the front and rear direction.

  The housing 101 includes a main body portion 111 that houses the contacts 103, and fixed portions 121 that are formed at the left and right ends of the main body portion 111, respectively. The main body 111 has a plurality of grooves 101a formed along the front-rear direction of the housing 101 on the upper surface thereof, and each contact 103 is accommodated in the groove 101a. Further, the fixing portion 121 is formed with a mounting groove 121a along the thickness direction by cutting out the front end, and further, a mounting hole 121b through which the fixing portion 121 is inserted in the thickness direction is formed on the rear side.

  The flat cable 102 is formed by bundling a plurality of cables 102 a in a planar shape, and is introduced into the housing 101. In the flat cable 102, the conductor of each cable 102 a is soldered to each contact 103 on the upper surface of the housing 101.

  The cover 104 is formed in a long plate-like cover main body 114 that is long along the longitudinal direction (left-right direction) of the housing 101, and left and right ends of the cover main body 114 in order to fix the cover 104 to the housing 101. And a caulking fixing portion 115.

  The caulking fixing portion 115 has a cross-section from a flat plate-like base portion 115a extending outward from both ends of the cover main body portion 114 and extending portions 115b and 115c extending in the thickness direction from both front and rear ends of the base portion 115a. It is formed in a substantially U-shape. In FIG. 16, the extended portion 115 b has a substantially L shape with its distal end bent, but in an initial state, the extended portion 115 b has a flat plate shape without being bent.

  When covering the cover 104 on the housing 101, first, the extending portions 115b and 115c are inserted into the mounting groove 121a and the mounting hole 121b of the housing 101, respectively, and a flat cable is connected between the main body 114 and the upper surface of the housing 101. 102 is held. Next, the cover 104 is fixed to the housing 101 by caulking (bending) the distal end of the extending portion 115 b along the outer surface (to the rear side) on the fixing portion 121.

JP 2007-157594 A

  As described above, the connector in the conventional example requires a caulking process when assembling the cover 104 to the housing 101, so that it takes time to assemble, and once the cover 104 is removed and reattached. There is a problem that the strength of the extending portion 115b is reduced due to metal fatigue, and the assembled state of the cover 104 becomes unstable.

  The present invention has been made in view of the above-described reasons, and an object of the present invention is to provide a connector in which a cover can be easily assembled to a housing and the assembled state is stable even when the cover is remounted. There is to do.

According to the first aspect of the present invention, a substantially rectangular parallelepiped housing is connected to each conductor of a flat cable that is arranged in parallel along the longitudinal direction of the housing on one surface of the housing and is introduced from one side of the housing in the short direction. Thickness from a plurality of contacts, a substantially rectangular plate-shaped cover body that covers the flat cable together with the housing and fixes the flat cable together with the housing, and a side surface located on one side of the cover body in the short direction And a metal cover made of a pair of engaging claws that extend in the direction and are located on both sides of the flat cable, respectively, and the engaging claws face a side face that is located on one side in the short direction of the housing. An engagement piece protrudes from the surface, and the housing is a pair of gold engaged with the engagement claw on a side surface located on one side in the lateral direction . After the engaged part made of the genus is formed and the engaging claw engages with the engaged part, the engaging piece comes into contact with the engaged part and the engaging claw bends away from the housing. The engaging claw and the engaged portion are engaged with each other.

  According to the present invention, the cover can be easily assembled simply by fitting the cover from one side of the housing, and the cost can be reduced because a caulking process is not required. Furthermore, since the cover can be detached and attached by bending the engaging claw, metal fatigue of the engaging claw at the time of remounting is suppressed, and the assembled state of the cover can be stabilized. In addition, since the engaging portion is formed on the insertion side of the flat cable with respect to the housing, even if the flat cable is pulled to one side of the housing, the cover can be prevented from being lifted, and the conductor and contact of the flat cable can be suppressed. Can be prevented. Furthermore, since the engaging portion and the engaged portion are both made of metal and engaged by the hook structure, a desired engagement strength can be ensured without increasing the hook allowance.

According to a second aspect of the present invention, in the first aspect of the present invention, the engaged portion is formed to protrude from a side surface located on one side in the short side direction of the housing, and the engaging claw is a short side of the housing. An inclined surface that inclines inwardly from the distal end toward the proximal end is formed at the distal end of the surface facing the side surface located on one side in the direction.

  According to the present invention, since the inclined surface is formed on the engaging claw, the engaging claw is gradually bent outward by the engaged portion, and the engagement can be smoothly performed.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the engaged portion is formed integrally with the housing by insert molding.

  According to this invention, since the engaged portion is formed in the housing by insert molding, the engaging claw is engaged with the hook structure of the engaging claw and the engaged portion without holding the housing made of resin. Performance can be increased. Further, the engaged portion can be easily and accurately formed with respect to the housing.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects , the engaged portion is formed to protrude from a side surface located on one side in the short side direction of the housing, and is opposed to the engaging claw. The surface to be inclined has an inclined surface that is inclined outward from one surface side of the housing toward the other surface side facing the one surface.

  According to this invention, since the inclined surface is formed in the engaged portion, the engaging claw is gradually bent outward along the inclined surface of the engaged portion, and the engagement is smoothly performed. Can do.

  A fifth aspect of the present invention is the metal according to the fourth aspect of the present invention, wherein the engaged portion is incorporated and a substantially V-shaped groove having two inclined surfaces is formed at the boundary with the engaged portion. The part is insert-molded in the housing, and the engaged part and the metal part are separated from each other at the bottom surface of the groove part, whereby one inclined surface of the groove part becomes the inclined surface.

  According to the present invention, one of the two inclined surfaces of the groove portion formed for separating the engaged portion and the metal part is the inclined surface of the engaged portion, whereby the engaged portion Since a process for providing an inclined surface is not required, man-hours can be reduced.

  As described above, according to the present invention, it is possible to provide a connector in which the cover can be easily assembled to the housing and the assembled state of the cover can be stabilized even when reattachment is performed. effective.

The principal part enlarged view of the connector in embodiment of this invention is shown. The disassembled perspective view of the connector in the same as the above is shown. The perspective view of the housing in the same as the above is shown. The principal part enlarged view of the housing in the same as the above is shown. The perspective view of the metal member in the same as the above is shown. The perspective view at the time of insert-molding the metal member in the same to a housing is shown. (A), (b) shows the enlarged view of the to-be-engaged part of the connector in the same as the above, (a) is a perspective view, (b) shows sectional drawing. (A), (b) shows the enlarged view of the to-be-engaged part of the connector in the same as the above, (a) is a perspective view, (b) shows sectional drawing. The schematic of the flat cable in the same as the above is shown. The principal part enlarged view of the engaging part of a connector in the same as the above is shown. The principal part enlarged view of the engaging part of a connector in the same as the above is shown. Sectional drawing of the engaging part of the connector in the same as the above is shown. The principal part enlarged view of the connector in the same as the above is shown. The perspective view of the connector in the same as the above is shown. The perspective view of the cover in the connector of another form of the present invention is shown. The disassembled perspective view of the connector in a prior art example is shown.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment)
The connector of this embodiment is demonstrated using FIGS. In the following description, the direction perpendicular to the up / down / left / right direction is defined as the front / rear direction with reference to the up / down / left / right direction in FIG.

  As shown in FIGS. 1 and 2, the connector according to the present embodiment is provided in a substantially rectangular parallelepiped housing 1 made of a resin that is long in the left-right direction and the upper surface of the housing 1 along the left-right direction. A plurality of contacts 3 connected to the respective conductors 21 a of the flat cable 2 to be introduced, and a metal cover 4 that covers the upper surface of the housing 1 and engages with the housing 1.

  As shown in FIG. 3, the housing 1 includes a substantially rectangular parallelepiped housing main body 11 that is long in the left-right direction, and restricting portions 12 that are respectively formed at the left and right ends of the housing main body 11.

  The housing body 11 is formed in a substantially rectangular parallelepiped shape, and a plurality of slit holes 11a are arranged in parallel along the longitudinal direction at the rear of the upper surface. A part of the contact 3 accommodated in the housing body 11 is exposed from the slit hole 11a.

  Further, a long protruding wall 11b is formed on the front surface of the housing body 11 in the left-right direction. Further, in the vicinity of both the left and right sides of the protruding wall 11b, as shown in FIG. Protrusions 11c each having a guide groove 11d having a shape are formed. A metal reinforcing plate 5 bent in a substantially U shape is covered on the surface of the protruding wall 11b, and is formed along the guide groove 11d from both left and right ends of the metal reinforcing plate 5. A metal engaged portion 6 protruding from the front surface of 11c is extended. In addition, an inclined surface 11g is formed on the front surface of the protrusion 11c so as to incline backward from the bottom toward the upper end.

  The engaged portion 6 has an inclined surface 6 a that is inclined rearward from the lower end toward the upper end on the end surface (front surface).

  Here, the contact 3, the metal reinforcing plate 5, and the engaged portion 6 are integrally formed in the housing 1 by insert molding. Hereinafter, the procedure of insert molding will be described. First, as shown in FIG. 5, the metal member 7 in which the contact 3 is integrally formed and the metal member 8 in which the metal reinforcing plate 5 and the engaged portion 6 are integrally formed form the housing 1. The resin is filled in the mold by being sandwiched between molds (not shown). Here, the contact 3 is connected to the metal member 7 via a connecting portion 7 a formed at the end of the metal member 7, and the metal reinforcing plate 5 and the engaged portion 6 are formed at the end of the metal member 8. It connects with the metal member 8 via the connecting part 8a.

  Then, as shown in FIG. 6, the contact 3 and the metal member 7 are cut at the boundary L1 between the contact 3 and the connecting portion 7a, and the metal reinforcing plate 5, the engaged portion 6 and the metal member 8 are further separated. The boundary L2 between the metal reinforcing plate 5 and the engaged portion 6 and the connecting portion 8a is cut. In this manner, the contact 3, the metal reinforcing plate 5, and the engaged portion 6 can be easily and accurately integrally formed with respect to the housing 1.

  In the above, as shown in FIG. 7, the metal part 8 has a V-shaped groove (groove portion) composed of two inclined surfaces 81a and 81b on the upper surface of the portion serving as the boundary L2 between the engaged portion 6 and the connecting portion 8a. ) 81 is formed in advance. The engaged portion 6 side is an inclined surface 81a, and the connecting portion 8a side is an inclined surface 81b. Therefore, as shown in FIG. 8, the inclined surface 81a is engaged by cutting the engaged portion 6 and the connecting portion 8a at the bottom surface of the V-shaped groove 81 (intersection of the inclined surface 81a and the inclined surface 81b). It becomes the inclined surface 6a of the joint part 6, and the process for forming the inclined surface 6a separately becomes unnecessary, and a man-hour can be reduced. In the present embodiment, the V-shaped groove 81 is formed at the boundary L2 between the engaged portion 6 and the connecting portion 8a, but the cross section is such that the engaged portion 6 side is an inclined surface and the connecting portion 8a side is a vertical surface. A substantially rectangular groove may be formed. As described above, the shape of the groove formed at the boundary L2 between the engaged portion 6 and the connecting portion 8a is only required to be an inclined surface on the engaged portion 6 side. It is not limited to a letter.

  Further, since the pair of engaged portions 6 are molded integrally with the metal reinforcing plate 5, the pair of engaged portions 6 can be easily positioned when performing the insert molding. Further, since the metal reinforcing plate 5 is wound around the protruding wall 11b of the housing 1 made of resin, the strength of the housing 1 is increased.

  As shown in FIGS. 1 to 3, the restricting portion 12 extends from the left and right end portions of the housing body 11 and has a smaller front-rear dimension than the housing body portion 11, and the left and right directions of the guide portion 12 b. It is comprised from the enlarged diameter part 12a extended from the edge part and whose dimension of the front-back direction is larger than the guide part 12b.

  A pair of guide walls 11e and 12c that are opposed to each other with a predetermined distance from the front surface and the rear surface of the guide portion 12b from the side surfaces of the housing main body portion 11 and the enlarged diameter portion 12b facing each other with the guide portion 12b interposed therebetween. Each is formed. Thereby, guide portions 13 and 14 having a substantially C-shaped cross section are formed on the front side and the rear side of the restricting portion 12, respectively.

  The flat cable 2 is configured by bundling a plurality of cables 21 in a flat plate shape. Here, as shown in FIG. 9, each cable 21 is a so-called coaxial cable, and an annular outer conductor 21c is provided on the outer periphery of a rod-shaped inner conductor 21a via an insulating material 21b. It is formed by providing an insulating coating 21d on the surface of 21c. And each cable 21 increases the amount of peeling stepwise toward the tip, so that the outer conductor 21c → the insulating material 21b → the inner conductor 21a is exposed in order toward the tip.

  The flat cable 2 is introduced into the housing 1 from the front, and the inner conductor 21a of each cable 21 is soldered to each contact 3 exposed on the upper surface of the housing 1. Further, the outer conductor 21c is sandwiched between a pair of substantially rectangular plate-shaped ground bars 9 from both upper and lower sides, and the left and right ends of the ground bar 9 project from the both ends of the upper surface of the housing body 11, respectively. Are fitted into the pair of holding walls 11f. Furthermore, the extended piece 9a extending from the approximate center of the ground bar 9 is solder-connected to the ground contact 3 (stored in the approximate center of the housing 1 in this embodiment).

  The cover 4 includes a substantially rectangular flat cover body portion 41 that is long in the left-right direction, and restricting portions 42 that are respectively formed at the left and right ends of the cover body portion 41. The cover main body 41 has engaging claws 411 formed downward from both ends of the front side edge, and further, through holes 41a are formed at a plurality of locations (three locations in the present embodiment) at substantially equal intervals. Yes.

  The engagement claw 411 is formed with an incision 411a at an inner side edge near the tip, and is an engagement piece 411b having a spring property in which a lower part of the notch 411a curves backward. In addition, an inclined surface 411c is formed at the lower end of the rear surface of the engaging claw 411. The inclined surface 411c is inclined backward from the lower end toward the upper side.

  The restricting portion 42 includes a rectangular flat plate-like base portion 421 extending from the left and right ends of the cover main body portion 41, and a sandwiching piece 422 formed by bending the front end portion and the rear end portion of the base portion 421 downward, 423. Here, on the side edge of the base portion 421, notch portions 421c are formed in the vicinity of the front and rear bent portions 421a and 421b, respectively. In addition, fitting protrusions 422a and 423a protrude from the left and right sides of the holding pieces 422 and 423, respectively.

  When the cover 4 is assembled to the case body 1, first, the holding pieces 422 and 423 are inserted into the guide portions 13 and 14 in the restricting portion 12 from above, and as shown in FIGS. , 14 and move downward. Here, the fitting protrusions 422a and 423a formed on the holding pieces 422 and 423 slide on the inner walls of the guide portions 13 and 14, respectively. Then, the inclined surface 411c of the engaging claw 41 first contacts the inclined surface 11g of the protrusion 11c and slides along the inclined surface 11g, and the engaging piece 411b is bent outward (front side). Next, the inclined surface 411c of the engaging claw 41 abuts on the inclined surface 6a of the engaged portion 6 and slides along the inclined surface 6a, and the engaging piece 411b is further bent outward. Thereafter, as shown in FIGS. 13 and 14, when the engagement piece 411 b gets over the engaged portion 6, the engagement claw 411 is not bent, and the engagement piece 411 b enters below the engaged portion 6. . In this way, the engaging claw 411 engages with the engaged portion 6 and the cover 4 is fixed to the housing 1.

  Here, since the engagement piece 411b and the engaged portion 6 are both formed of a metal material, a desired engagement strength can be ensured even if the engagement allowance is small, and the size of the engagement portion can be reduced. Can be suppressed. Further, the inner wall of the through hole 41 a in the cover 4 is soldered to the ground bar 9, so that the assembly strength of the cover 4 to the housing 1 can be further increased. In addition, the engaging claws 411 are positioned with respect to the engaged portions by inserting the holding pieces 422 and 423 into the guide portions 13 and 14.

  As described above, the connector of this embodiment can be easily assembled and fixed to the housing 1 by pushing the cover 4 toward the housing 1 side. That is, when the cover 4 is assembled to the housing 1, it is not necessary to perform caulking processing, and the number of steps can be reduced and the cost can be reduced.

  Further, since the engaging claw 411 engages with the engaged portion 6 on the insertion side of the flat cable 2 with respect to the housing 1, even if the flat cable 2 receives a tensile force upward, the cover 4 Can be prevented from floating. Accordingly, it is possible to prevent the tensile force from being applied directly to the connection portion between the conductor portion 21a of the cable 21 and the contact 3 and to prevent the flat cable 2 and the contact 3 from being disconnected.

  Further, when the cover 4 is assembled to the housing 1, the engagement claw 411 of the cover 4 is engaged by being bent without being caulked with respect to the engaged portion 6. Thus, metal fatigue generated in the engaging claws 411 can be suppressed. Therefore, even when the cover 4 is once removed from the housing 1 and remounted, the cover 4 can be stably assembled.

  In this embodiment, the engagement piece 411b is formed on the engagement claw 411. However, instead of forming the engagement piece 411b, an engagement piece 411d as shown in FIG. 15 may be formed. The engagement piece 411d is formed between the pair of cuts 411f by forming a substantially rectangular opening 411e in the engagement claw 411 and forming a pair of cuts 411f downward from the lower inner wall of the opening 411e. The Here, the engagement piece 411d is inclined inwardly (rearward side) from the proximal end toward the distal end side, and has a spring property.

DESCRIPTION OF SYMBOLS 1 Housing 2 Flat cable 21a Inner conductor 3 Contact 4 Cover 5 Metal reinforcement board 6 Engagement part 6a Inclined surface 7 Metal member 8 Metal member 9 Ground bar 41 Cover main body 411 Engagement claw 411b Engagement claw 411c Inclined surface

Claims (5)

A substantially rectangular parallelepiped housing;
A plurality of contacts connected to each conductor of the flat cable, which are arranged on one side of the housing along the longitudinal direction of the housing and introduced from one side in the short side direction of the housing;
Covered on one side of the housing and sandwiched between the flat cable and the housing to fix the flat cable, and a substantially rectangular plate-like cover main body, and the side extending from one side of the cover main body in the short direction extends in the thickness direction. And a metal cover consisting of a pair of engaging claws located on both sides of the flat cable,
The engagement claw has an engagement piece projecting from a surface facing a side surface located on one side in the short side direction of the housing, and the housing has the engagement claw on a side surface located on one side in the short side direction. A pair of metal engaged portions that are engaged with each other are formed, and when the engaging claw engages with the engaged portion, the engaging piece comes into contact with the engaged portion so that the engaging claw is removed from the housing. The connector, wherein the engaging claw and the engaged portion are engaged after bending in a direction away from the connector. The engaged portion is formed to protrude from a side surface located on one side in the lateral direction of the housing, the engagement claw is at the tip side opposite to the surface located on one side in the lateral direction of the housing 2. The connector according to claim 1, wherein an inclined surface that is inclined inwardly from the distal end toward the proximal end is formed. The connector according to claim 1, wherein the engaged portion is integrally formed with the housing by insert molding. The engaged portion is formed to protrude from a side surface located on one side in the short direction of the housing, and moves from one surface side of the housing to the other surface side facing the one surface to the surface facing the engaging claw. 4. The connector according to claim 1, further comprising an inclined surface that is inclined outward. The engaged portion is formed by insert-molding a metal part in which a substantially V-shaped groove portion having two inclined surfaces is formed at a boundary between the engaged portion and the engaged portion, The connector according to claim 4, wherein one of the inclined surfaces of the groove portion becomes the inclined surface by separating the engaged portion and the metal part at the bottom surface of the groove portion.

Images