JP6356504B2 - connector - Google Patents

Description

  The present invention relates to a connector.

  Conventionally, as a connector, a housing, a plurality of terminals housed in the housing and having a box-shaped connection portion, a contact spring as a contact portion provided inside and outside the box-shaped connection portion, and a housing A receptacle as a holder that is assembled to the terminal connection side, and a contact that slides in contact with the tip of the contact spring when the receptacle is assembled to the housing. There has been known one provided with a plurality of push-up protrusions as push-up portions that displace a spring and move it out of a connecting portion (for example, see Patent Document 1).

  In this connector, since the contact spring does not come out of the box-shaped connecting portion by the push-up projection before the receptacle is assembled to the housing, the contact spring is protected by the connecting portion, and the contact spring is not deformed. Can be prevented.

  In addition, since the contact spring does not come out of the box-shaped connection before the receptacle is assembled to the housing, the contact spring and the receptacle slide when the housing and the receptacle are assembled. The insertion resistance between the housing and the receptacle can be reduced.

JP 2012-69469 A

  By the way, in the connector as in Patent Document 1, the contact portion is displaced by the push-up portion when the housing and the holder are assembled. Therefore, the displacement of the contact portion by the push-up portion is assembled in the assembly of the housing and the holder. Insertion resistance occurs.

  For this reason, when the terminals accommodated in the housing are multipolar, in the assembly of the housing and the holder, the displacement portion of the contact portion due to the push-up portion is increased, and the insertion resistance between the housing and the holder is increased. The nature will decline.

  Accordingly, an object of the present invention is to provide a connector that can reduce the insertion resistance between the housing and the holder when the terminals are multipolarized and can improve the assembling property.

  The invention according to claim 1 is a housing, a plurality of terminals housed in the housing and having a box-shaped connection portion, a contact portion provided inside and outside the box-shaped connection portion, A holder that is assembled to the connection portion side of the terminal, and the holder extends toward the connection portion side of the terminal, and slides in contact with the tip of the contact portion when the holder is assembled to the housing. And a plurality of push-up portions that displace the contact portion and move it out of the connection portion, wherein the plurality of push-up portions are extended toward the connection portion side of the terminal. The length is set to at least two types.

  In this connector, since the extension lengths in which the plurality of push-up portions are extended toward the connection portion side of the terminal are set to at least two types of lengths, the push-up portion is assembled in the assembly of the housing and the holder. The timing for displacing the contact portion is divided into at least two stages, and the insertion resistance between the housing and the holder can be reduced.

  Therefore, in such a connector, when the terminal is multipolar, the insertion resistance between the housing and the holder can be divided into at least two stages, and the insertion resistance between the housing and the holder when the terminal is multipolar can be reduced. Can be improved.

The invention of claim 1 further includes the push-up portion extending設長is shorter among the previous SL plurality of push-up unit, after the extension設長of the longer the push-up unit is displaced to maximize the contact portion The contact portion is brought into contact with the tip of the contact portion to start displacement of the contact portion.

  In this connector, the push-up portion with the short extension length among the plurality of push-up portions displaces the contact portion by contacting the tip of the contact portion after the push-up portion with the long extension length displaces the contact portion to the maximum. Therefore, after the displacement of the contact portion by the push-up portion having a long extension length is completed, the contact portion can be displaced by the push-up portion having a short extension length, and the contact portion by the plurality of push-up portions is displaced. The timing to be performed can be surely divided.

According to a second aspect of the invention, a connector according to claim 1, wherein the pushing unit includes a feature that the part to initiate contact between the tip of the contact portion is formed by inclined surfaces To do.

  In this connector, since the part where the push-up part starts to contact the tip of the contact part is formed with an inclined surface, the contact part can be smoothly displaced by the push-up part, and the assembly is further improved. can do.

  Advantageous Effects of Invention According to the present invention, it is possible to provide a connector that can reduce the insertion resistance between the housing and the holder when the terminals are multipolar and can improve the assembling property.

It is a disassembled perspective view of the connector which concerns on embodiment of this invention. It is sectional drawing of the connector which concerns on embodiment of this invention. (A) is a perspective view of the holder of the connector which concerns on embodiment of this invention. FIG. 3B is a side view of FIG. It is sectional drawing in the middle of insertion of the housing and holder of the connector which concern on embodiment of this invention. It is sectional drawing of insertion completion of the housing and holder of the connector which concern on embodiment of this invention.

  A connector according to an embodiment of the present invention will be described with reference to FIGS.

  The connector 1 according to the present embodiment includes a housing 3, a plurality of terminals 7 housed in the housing 3 and having a box-like connection portion 5, and contacts provided inside and outside the box-like connection portion 5 so as to be able to appear and retract. A portion 11, a holder 11 assembled on the connection portion 5 side of the terminal 7 of the housing 3, and an extension of the holder 11 toward the connection portion 5 side of the terminal 7 when the holder 11 is assembled to the housing 3. There are provided a plurality of push-up portions 13 that slide in contact with the tip of the contact portion 9 to displace the contact portion 9 and move it out of the connection portion 5.

  And the extension length extended toward the connection part 5 side of the terminal 7 is set to two types of length L1, L2 of the some pushing part 13. As shown in FIG.

  Further, among the plurality of push-up portions 13, the push-up portion 13 having a short extension length contacts the tip of the contact portion 9 after the push-up portion 13 having a long extension length displaces the contact portion 9 to the maximum. The displacement of the contact portion 9 is started.

  Further, the push-up portion 13 is formed with an inclined surface 15 at a portion where contact with the tip of the contact portion 9 is started.

  As shown in FIGS. 1 to 5, the housing 3 is made of an insulating material such as synthetic resin, provided with a hood portion 17 into which an end portion of the mating connector 35 is inserted on one side surface, and a plurality of hood portions 17 on the other side surface side. A terminal insertion portion 19 into which the terminal 7 is inserted is provided.

  A plurality of terminals 7 are inserted into the housing 3 from the opening on the terminal insertion portion 19 side, and the plurality of terminals 7 are accommodated in a terminal accommodating chamber 21 provided therein.

  A plurality of holes into which the plurality of terminals 7 can be inserted are provided on the opening side of the terminal insertion portion 19 of the housing 3, and the housing 3 and the plurality of terminals 7 are in close contact with the housing 3 and the plurality of terminals 7. A mat seal 23 for waterproofing is provided.

  The mat seal 23 is provided with a plurality of holes into which the plurality of terminals 7 can be inserted after being arranged in the terminal insertion portion 19 of the housing 3, and the mat seal cover is assembled to the opening of the terminal insertion portion 19 of the housing 3. 25 prevents the housing 3 from coming off.

  The plurality of terminals 7 are made of a conductive material and are female terminals having a box-like connection portion 5. The plurality of terminals 7 are electrically connected by crimping or the like to the terminal portions of the electric wires 27 connected to the power source and equipment.

  The plurality of terminals 7 are accommodated in the terminal accommodating chamber 21 in the housing 3 so that the connection portion 5 side is inserted from the opening of the terminal insertion portion 19 of the housing 3 and the connection portion 5 is positioned on the hood portion 17 side. At this time, a locking lance 29 provided in the terminal accommodating chamber 21 so as to be able to bend is locked to the connecting portion 5 of the terminal 7 to prevent the housing 7 from coming off.

  A plurality of such terminals 7 are accommodated in the upper and lower stages in the height direction of the housing 3 in a vertically symmetrical manner, and a plurality of terminals 7 are accommodated in parallel in the width direction of the housing 3. In this way, the contact portions 9 are provided in the box-shaped connection portions 5 of the plurality of terminals 7 accommodated in the housing 3.

  The contact portion 9 is formed of a single member whose base end side is continuous from the upper wall of the box-like connecting portion 5 and whose free end side is bent toward the bottom wall of the box-like connecting portion 5. Consists of. In addition, a contact portion 31 is provided at the center of the contact portion 9 so that the contact portion 9 can go in and out by bending of the contact portion 9 from a hole formed in the upper wall of the box-like connection portion 5. In the contact portion 9, when the terminal 7 is accommodated in the housing 3, the contact portion 31 is accommodated in the box-shaped connection portion 5.

  For this reason, the terminal 7 does not interfere with the mat seal 23 or the mat seal cover 25 when the connecting portion 5 passes through the holes of the mat seal 23 or the mat seal cover 25, and the mat seal 23 or Damage to the mat seal cover 25 can be prevented. The holder 11 is assembled to the hood portion 17 of the housing 3 that accommodates the terminal 7 provided with such a contact portion 9.

  The holder 11 is made of an insulating material such as synthetic resin, and is accommodated in the housing 3 from the hood portion 17 of the housing 3. Further, at both ends in the height direction of the holder 11, a plurality of restricting projections 33 that are inserted into the bending space of the locking lance 29 in a state of being accommodated in the housing 3 and restrict the bending of the locking lance 29 extend. It is installed.

  The holder 11 is inserted into the hood portion 17 of the housing 3 on the opposite surface of the holder 11 facing the terminal 7, so that the holder 11 is inserted into the box-shaped connection portion 5 of the terminal 7 and is attached to the tip of the contact portion 9. A plurality of push-up portions 13 that are in contact with each other extend toward the terminal 7 side.

  The plurality of push-up portions 13 are formed vertically symmetrically in the upper and lower stages in the height direction of the holder 11 so as to correspond to the plurality of terminals 7 and are arranged in parallel in the width direction of the holder 11. Has been. Further, the front end side of the push-up portion 13 is formed with an inclined surface 15 that is inclined upward from the terminal 7 side toward the holder 11 side.

  The push-up portion 13 is inserted into the box-shaped connection portion 5 of the terminal 7 by inserting the holder 11 into the hood portion 17 of the housing 3, and the tip of the inclined surface 15 abuts against the tip of the contact portion 9. Is done. When the holder 11 is further inserted into the hood portion 17 of the housing 3 from this state, the tip of the contact portion 9 slides on the inclined surface 15 and the contact portion 9 is displaced toward the upper wall of the connection portion 5.

  Due to the displacement of the contact portion 9 by the push-up portion 13, the contact portion 31 is taken out of the connection portion 5 through the hole in the upper wall of the connection portion 5. In this way, the contact portion 31 that is exposed to the outside of the connection portion 5 becomes a pair of contact portions 31 and 31 that face each other in the height direction of the housing 3 in a state where the holder 11 is completely assembled to the housing 3. Between the pair of contact portions 31, 31, the mating connector 35 is inserted into the hood portion 17 of the housing 3, whereby the end of the mating connector 35 is inserted.

  The mating connector 35 is configured by insert-molding a circuit board 39 in a board housing 37 made of an insulating material such as synthetic resin. At the end of the circuit board 39 exposed from the board housing 37, a plurality of conductor portions constituting a circuit pattern are provided in a plurality of rows in the width direction on the front and back surfaces.

  The mating connector 35 is connected to a pair of guide ribs (not shown) provided on the outer periphery of the substrate housing 37 and a pair of guide grooves 43, 43 provided in the housing 3. Are inserted into the hood portion 17 of the housing 3 and locked through a locking portion 47 (the locking portion on the substrate housing side is not shown) provided in the substrate housing 37 and the housing 3.

  Thus, by accommodating the end of the mating connector 35 on the circuit board 39 side in the hood 17 of the housing 3, the circuit board 39 of the mating connector 35 is inserted through the holder 11 and between the pair of contact portions 31, 31. Inserted into. As a result, the pair of contact portions 31, 31 are connected to the conductor portion of the circuit board 39, and the mating connector 35 and the plurality of terminals 7 are electrically connected.

  In addition, between the housing 3 and the mating connector 35, it is accommodated in the hood part 17 of the housing 3, and is tightly attached to the housing 3 and the substrate housing 37 to waterproof between the housing 3 and the mating connector 35. 49 is arranged.

  In such a connector 1, the plurality of push-up portions 13 are set to have two lengths L <b> 1 and L <b> 2 that extend toward the connection portion 5 side of the terminal 7. Specifically, the plurality of push-up portions 13 are alternately arranged so that adjacent push-up portions 13 and 13 have different extending lengths L1 and L2 in the width direction of the holder 11, and in the height direction of the holder 11 The upper and lower push-up portions 13, 13 are arranged to have different extending lengths L1, L2.

  The extended lengths L1 and L2 are such that after the push-up portion 13 having the long extended length L1 displaces the contact portion 9 to the maximum, the push-up portion 13 having the short extended length L2 becomes the tip of the contact portion 9. Is set so as to start displacement of the contact portion 9.

  By setting the extension lengths L1 and L2 of the plurality of push-up portions 13 in this way, the push-up portion having the extension length L1 at the timing when the peak of the displacement force that displaces the contact portion 9 by the push-up portions 13 is reached. 13 and the push-up portion 13 having the extended length L2.

  For this reason, in the insertion range of the housing 3 and the holder 11, as compared with the push-up unit 13 where the peak of the displacement force for displacing all the contact units 9 as in the prior art is reached simultaneously, the contact points by the plurality of push-up units 13 The displacement force of the part 9 can be divided, and the insertion resistance between the housing 3 and the holder 11 can be reduced.

  In such a connector 1, the extension lengths of the plurality of push-up portions 13 extending toward the connection portion 5 side of the terminal 7 are set to two types of lengths L 1 and L 2. In the assembly with the holder 11, the timing of displacing the contact portion 9 by the push-up portion 13 is divided into two stages, and the insertion resistance between the housing 3 and the holder 11 can be reduced. That is, since the extending length of the plurality of push-up portions 13 is changed, the timing for displacing the contact portion 9 by the push-up portions 13 can be shifted. Thereby, the insertion force of the holder 11 with respect to the housing 3 can be reduced.

  Therefore, in such a connector 1, when the terminal 7 is multipolar, the insertion resistance between the housing 3 and the holder 11 can be divided into two stages, and the insertion resistance between the housing 3 and the holder 11 when the terminal 7 is multipolar is reduced. It can be reduced and the assemblability can be improved.

  The push-up portion 13 having a short extension length L2 is brought into contact with the tip of the contact portion 9 after the push-up portion 13 having a long extension length L1 displaces the contact portion 9 to the maximum. Therefore, after the displacement of the contact portion 9 by the push-up portion 13 having the long extension length L1, the contact portion 9 can be displaced by the push-up portion 13 having the short extension length L2. And the timing which displaces the contact part 9 by the several pushing-up part 13 can be divided reliably.

  Further, since the push-up portion 13 is formed with the inclined surface 15 at the portion where contact with the tip of the contact portion 9 is started, the displacement of the contact portion 9 by the push-up portion 13 can be smoothly performed. Adhesiveness can be improved.

  In the connector according to the embodiment of the present invention, the extension lengths of the plurality of push-up portions are set to two types, but not limited to this, two or more types of extension lengths may be set. . In this case, after the push-up portion with the long extension length displaces the contact portion to the maximum, the push-up portion with the short extension length comes into contact with the tip of the contact portion to start the displacement of the contact portion. It is preferable to set the extended length.

DESCRIPTION OF SYMBOLS 1 ... Connector 3 ... Housing 5 ... Connection part 7 ... Terminal 9 ... Contact part 11 ... Holder 13 ... Push-up part L1, L2 ... Extension length 15 ... Inclined surface

Claims (2)

A housing, a plurality of terminals housed in the housing and having a box-like connection portion, a contact portion provided inside and outside the box-like connection portion, and a terminal connection portion side of the housing. A holder attached to the holder and extending toward the connection portion side of the terminal. When the holder is assembled to the housing, the holder abuts against the tip of the contact portion and slides to displace the contact portion. A connector having a plurality of push-up portions to be brought out of the connection portion;
The plurality of push-up parts are set to at least two types of extension lengths extending toward the terminal connection part side ,
The push-up portion having a short extension length among the plurality of push-up portions is configured to contact the tip of the contact portion after the push-up portion having a long extension length displaces the contact portion to the maximum. A connector characterized by starting displacement of a part . A serial mounting of the connector in claim 1,
In the connector, the push-up portion is formed with an inclined surface at a portion for starting contact with the tip of the contact portion.

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