JP6514496B2 - Connector with dust cap - Google Patents

Description

  The present invention relates to a dustproof cap attached connector.

  Conventionally, as a connector with a dustproof cap, a housing having an opening to which a mating housing can be fitted, a lock arm that is flexibly provided to the housing and has a locking portion that can be locked to the mating housing, and assembled to the housing A dustproof cover as a dustproof cap having an end wall as a closing portion for closing the opening and a peripheral wall as a protective portion which covers the outer periphery of the housing and in which the locking portion of the lock arm is disposed. (See, for example, Patent Document 1).

  In this dustproof cap attached connector, the inner peripheral surface of the peripheral wall of the dustproof cover is provided with an engagement projection engageable with the engagement portion of the lock arm, and the engagement projection is engaged with the engagement portion of the lock arm Thus, the assembled state of the dustproof cover to the housing is maintained.

  On the other hand, in this dustproof cap attached connector, when removing the dustproof cover from the housing, the dustproof cover may be deformed or a jig may be inserted from the hole formed in the end wall of the dustproof cover. The engagement with the locking portion is released.

JP 2001-267004 A

  However, in the dustproof cap attached connector as described in Patent Document 1, the locking portion of the lock arm of the housing and the engagement projection of the dustproof cap are engaged when assembling the dustproof cap to the housing.

  Therefore, when releasing the engagement between the locking portion of the lock arm of the housing and the engagement projection of the dustproof cap, the lock arm is bent by deforming the dustproof cap or inserting a jig into the dustproof cap. Since it is necessary to release the engagement, there is a possibility that the lock arm may be deformed or broken, and there is a possibility that the fitting state with the mating housing can not be stably held.

  Then, this invention aims at provision of the connector with a dustproof cap which can hold | maintain stably a fitting state with the other party housing.

The invention according to claim 1 is a combination of a housing having an opening into which a mating housing can be fitted, a lock arm that is flexibly provided to the housing and has a locking portion that can be locked to the mating housing, and the housing A dustproof cap attached connector comprising: a dustproof cap having a closed portion closing the opening and a protective portion covering an outer periphery of the housing and having a locking portion of the lock arm disposed therein; A dustproof lock arm is disposed between the housing and the protection unit, and is disposed between the housing and the protection unit so as to be flexible and separated from the lock arm and has an engaging portion; The other one of the caps is disposed between the housing and the protection portion in proximity to the dustproof lock arm, and is engageable with the engagement portion. Such engaged portion is provided, the engaged portion is characterized in that it is positioned in the closed portion side of the engaging portion of the lock arm.

  In this dustproof cap attached connector, there is provided a dustproof lock arm having an engaging portion provided on one of the housing and the dustproof cap and spaced apart from the lock arm, and an object to be engaged with the engaging portion provided on the other. The dust cap is assembled to the housing by the engagement with the engaging portion.

  Therefore, when removing the dustproof cap from the housing, the dustproof cap is deformed or a jig is inserted into the dustproof cap, etc. to release the engagement between the engaging portion and the engaged portion of the dustproof lock arm. Even if this is done, the dustproof lock arm, the engaged portion and the jig do not interfere with the lock arm, and the lock arm is not affected by deformation or breakage.

Therefore, in such a connector with a dustproof cap, the dustproof cap can be removed from the housing without affecting the lock arm, so when the housing is fitted with the mating housing, the fitting state with the mating housing is It can be stably held.
Further, in this dustproof cap attached connector, the engaged portion is positioned closer to the closing portion than the engaging portion of the lock arm, so that the engaging portion of the lock arm and the engaged portion or the dustproof lock arm Even if the dustproof cap is assembled to the housing at the portion where the engaging portion matches, there is no interference between the locking portion of the lock arm and the engaged portion of the engaged portion or the dustproof locking arm. It is possible to prevent the influence on the lock arm due to the erroneous attachment of the dustproof cap to the housing.

The invention according to claim 2 is a combination of a housing having an opening into which a mating housing can be fitted, a lock arm that is flexibly provided to the housing and has a locking portion that can be locked to the mating housing, and the housing A dustproof cap attached connector comprising: a dustproof cap having a closed portion closing the opening and a protective portion covering an outer periphery of the housing and having a locking portion of the lock arm disposed therein; And a dustproof lock arm having an engaging portion, which is disposed between the housing and the protective portion and is flexible and spaced apart from the lock arm inside the protective portion. And a dustproof lock arm between the housing and the protective unit inside the protective unit on the other of the housing and the dustproof cap. Wherein the engageable engaged portion with the engaging portion are closely spaced are provided.
The invention according to claim 3 is the connector with a dustproof cap according to claim 1 or 2 , wherein the engagement between the engagement portion of the dustproof lock arm and the engaged portion is performed by removing the dustproof cap from the housing It is characterized in that it is released by moving in the removal direction.

  In this dustproof cap attached connector, the engagement between the engagement portion of the dustproof lock arm and the engaged portion is released by moving the dustproof cap in the direction to be removed from the housing. It is not necessary to insert a jig etc., and the influence to a lock arm can be prevented further.

  The invention according to claim 3 is the connector with a dustproof cap according to claim 1 or 2, wherein the engaged portion is positioned closer to the closing portion than a locking portion of the lock arm. I assume.

  ADVANTAGE OF THE INVENTION According to this invention, it is effective in the ability to provide the connector with a dustproof cap which can hold | maintain the fitting state with an other party housing stably.

It is a perspective view when the connector with a dustproof cap concerning the embodiment of the present invention is seen from one side. It is a perspective view when the connector with a dustproof cap concerning embodiment of this invention is seen from the other side. It is a disassembled perspective view when the connector with a dustproof cap concerning embodiment of this invention is seen from one side. It is a disassembled perspective view when the connector with a dustproof cap concerning embodiment of this invention is seen from the other side. It is a front view when the connector with a dustproof cap concerning embodiment of this invention is seen from the dustproof cap side. It is sectional drawing of the connector with a dustproof cap concerning embodiment of this invention. It is a principal part expanded sectional view of a connector with a dustproof cap concerning an embodiment of the invention.

  The dustproof cap attached connector according to the embodiment of the present invention will be described with reference to FIGS.

  The dustproof cap attached connector 1 according to the present embodiment is provided with a housing 3 having an opening of the terminal accommodating chamber 21 in which a mating housing (not shown) can be fitted, and the housing 3 is provided flexible and locked to the mating housing Lock arm 7 having a possible locking portion 5, a blocking portion 9 assembled to the housing 3 and closing the opening, and a protective portion 11 covering the outer periphery of the housing 3 and the locking portion 5 of the lock arm 7 disposed inside And a dustproof cap 13.

  The dustproof cap 13 is provided with a dustproof lock arm 17 disposed between the housing 3 and the protective portion 11 so as to be flexible and separated from the lock arm 7 and having an engaging portion 15. An engaged portion 19 is disposed between the protection portion 11 and the dustproof lock arm 17 and in proximity to the dustproof lock arm 17 and is engageable with the engaging portion 15.

  Further, the engagement between the engagement portion 15 of the dustproof lock arm 17 and the engaged portion 19 is released by moving the dustproof cap 13 in the direction to be removed from the housing 3.

  Furthermore, the engaged portion 19 is positioned closer to the closing portion 9 than the locking portion 5 of the lock arm 7.

  Here, the mating housing is made of an insulating material such as a synthetic resin and is formed in a cylindrical shape. Inside the mating housing, a mating terminal (not shown) made of a male terminal electrically connected to a power source, equipment or the like and having a tab-like connection portion is accommodated.

  In the upper part of such a mating housing, the front side in the fitting direction with the housing 3 is an inclined surface, and the rear side in the fitting direction with the housing 3 is substantially perpendicular to the upper surface and a locking surface A stop (not shown) is provided in a protruding manner.

  The mating housing configured in this manner can be fitted to the housing 3, and in the state of being fitted to the housing 3, the locking portion is provided to the locking portion 5 of the lock arm 7 provided on the housing 3. By being locked, the fitted state with the housing 3 is maintained.

  In the following description, the mating side of the housing 3 with the mating housing and the dustproof cap 13 is referred to as one end, the other side is referred to as the other end, and the dusting cap 13 is engaged with the housing 3 The mating side is one end side, and the other is the other end side.

  As shown in FIGS. 1 to 7, the housing 3 is made of an insulating material such as a synthetic resin, and one end side thereof is formed in a housing shape that can be fitted with the other housing, and a plurality of terminal storage chambers 21 are provided therein. The lock arm 7 is provided on the upper surface side so as to be flexible.

  Although the lock arm 7 is provided so as to be flexible, the overall movement of the lock arm 7 causes the one end side and the other end side in the length direction to swing, so in the following, the expression "swing" is used. Explain.

  The terminal accommodating chambers 21 are formed in the central portion of the housing 3 along the longitudinal direction of the housing 3 and arranged in plurality (here, four) along the width direction of the housing 3 and provided on the other end side of the housing 3 A plurality of terminals (not shown) formed of female terminals having box-like connection portions connectable to the connection portions of the other terminals from the openings are accommodated. In addition, a crimp part is crimped | bonded to the terminal part of the electric wire (not shown) connected to the power supply, the apparatus, etc., and the terminal is electrically connected.

  This terminal is inserted into the terminal accommodating chamber 21 from the opening provided on the other end side of the housing 3 and is locked by a locking lance (not shown) provided so as to be flexible in the terminal accommodating chamber 21. Retaining from the inside of the terminal accommodating chamber 21 is performed.

  A sealing member such as a rubber plug which is in close contact with the inner wall surface of the terminal accommodating chamber 21 to waterproof the inside of the terminal accommodating chamber 21 is attached to the outer periphery of the electric wire whose terminal is connected to the terminal portion.

  In such a terminal, when the mating housing and the housing 3 are fitted, the connecting portion of the mating terminal inserted from the opening at one end of the terminal accommodating chamber 21 is inserted into the box-like connecting portion. Electrically connected.

  The connection state between the terminal and the mating terminal is held by the locking between the locking portion 5 of the lock arm 7 for holding the mating state between the mating housing and the housing 3 and the locked portion of the mating housing.

  A sealing member 23 such as a packing is mounted on the outer periphery of the terminal accommodating chamber 21 of the housing 3 in close contact with the inner peripheral surface of the mating housing to separate the inside and the outside of the housing 3 and waterproof.

  The lock arm 7 is provided above the housing 3 so as to be able to swing in the height direction of the housing 3 and formed in a frame shape along the length direction of the housing 3 and provided with a locking portion 5 at one end. A release operation unit 25 is provided on the other end side.

  In the locking portion 5, the lower surface side on the front side in the fitting direction with the mating housing is an inclined surface, and the rear side in the fitting direction to the mating housing is a locking surface formed substantially perpendicular to the upper surface .

  When the mating housing and the housing 3 are fitted to each other, the locking portion 5 causes the lock arm 7 to swing upward by contact with the sloped surface of the locked portion. When the housing 3 is fitted, the locking surface swings so as to go over the locked portion and restore the lock arm 7 downward, thereby locking the locking surface of the locked portion. Thus, the fitting state between the mating housing and the housing 3 is maintained.

  When the upper surface of the release operation unit 25 is pressed downward by the operator's finger or the like, the lock unit 5 side of the lock arm 7 is swung upward, and the lock unit 5 and the locked unit 5 are locked. The engagement between the mating housing and the housing 3 can be released by releasing the engagement with the part.

  As described above, in the opening on one end side of the housing 3, the terminal accommodated in the inside of the mating housing is electrically connected to the mating terminal. Since the opening at one end is exposed when the housing 3 is not fitted to the mating housing, water, dust, etc. may enter the inside of the housing 3 from this opening.

  Therefore, in a state where the housing 3 and the mating housing are not fitted, the dustproof cap 13 is attached to one end side of the housing 3.

  The dustproof cap 13 is made of an insulating material such as a synthetic resin, is formed in a bottomed cylindrical shape with one end side opened, and includes a closed portion 9 and a protective portion 11.

  The closing portion 9 is a bottom wall portion of the other end side formed in a cylindrical shape with a bottom, and when the dustproof cap 13 is assembled to the housing 3 from the opening of the one end side, the opening of the one end side of the housing 3 Block the

  By closing the opening of the housing 3 by the closing portion 9, it is possible to prevent foreign matter such as water and dust from entering the inside of the housing 3.

  The protection portion 11 is a cylindrical portion formed in a cylindrical shape with a bottom and is formed of one member continuing to the closing portion 9, and when the dustproof cap 13 is assembled to the housing 3 from the opening at one end side, It is positioned on the outer periphery of the housing 3 so as to accommodate the locking portion 5 of the lock arm 7 therein.

  By covering the locking portion 5 of the lock arm 7 with the protective portion 11, the locking portion 5 of the lock arm 7 does not interfere with peripheral members, so that deformation or breakage of the locking portion 5 can be prevented. Thus, the fitting state between the mating housing and the housing 3 can be stably held.

  Such dustproof cap 13 is assembled from the opening at one end toward the opening at one end of housing 3 (the mating surface with the mating housing), and the mounting state with respect to housing 3 is the dustproof lock arm 17 and the cover It is held by the engaging portion 19.

  The dustproof lock arm 17 is provided so as to be flexible inside the dustproof cap 13, and is disposed between the housing 3 and the protective portion 11 in a state where the dustproof cap 13 is assembled to the housing 3. The dustproof lock arm 17 is disposed 180 degrees apart from the lock arm 7 of the housing 3 in a state of being disposed between the housing 3 and the protective portion 11.

  In such a dustproof lock arm 17, an engagement portion 15 is provided so as to project inward (toward the housing 3) of the dustproof cap 13. In the engaging portion 15, the front side in the mounting direction to the housing 3 is an inclined surface, and the rear side in the mounting direction to the housing 3 is a locking surface formed substantially perpendicular to the mounting direction . The engaging portion 15 is engaged with an engaged portion 19 provided in the housing 3.

  The protection portion 11 of the dustproof cap 13 is disposed on the outer periphery of the dustproof lock arm 17, and the dustproof lock arm 17 and the engagement portion 15 do not interfere with peripheral members, and the dustproof lock arm 17 and the engagement are engaged. Deformation or breakage of the portion 15 is prevented.

  The engaged portion 19 is continuous in the circumferential direction of the outer periphery on one end side of the housing 3 and protrudes outward in a rib shape. The engaged portion 19 is positioned closer to the closing portion 9 than the locking portion 5 of the lock arm 7 in a state where the dustproof cap 13 is assembled to the housing 3.

  By setting the position of the engaged portion 19 in this manner, the engaging portion 15 of the dustproof lock arm 17 engaged with the engaged portion 19 is also closer to the closed portion 9 than the locking portion 5 of the lock arm 7. It will be located.

  Therefore, even if the dustproof cap 13 is assembled to the housing 3 in a direction different by 180 degrees so that the locking portion 5 of the lock arm 7 and the engagement portion 15 of the dustproof lock arm 17 accidentally coincide with each other, The locking portion 5 of the lock arm 7 and the engaging portion 15 of the dustproof lock arm 17 do not interfere with each other, so that deformation or damage of the locking portion 5 due to erroneous assembly can be prevented.

  Although the lock arm 7 and the engaged portion 19 are provided at positions different by 180 degrees with respect to the circumferential direction of the housing 3, for example, the lock arm 7 and the engaged portion 19 The lock arm 7 and the engaged portion 19 may be provided at positions not opposed to the circumferential direction of the housing 3 so as to be provided at positions different by 90 degrees with respect to the direction.

  Even in this case, even if the dustproof cap 13 is assembled in the wrong direction with respect to the housing 3, the lock arm 7 and the dustproof lock arm 17 are completely separated, and mutual interference can be reliably prevented. .

  When the dustproof cap 13 is assembled to the housing 3, the engaged portion 19 has the dustproof lock arm 17 by the inclined surface of the engaging portion 15 of the dustproof lock arm 17 coming into contact with the engaged portion 19. When the dustproof cap 13 is assembled to the housing 3 by bending outward, the engaging portion 15 of the dustproof lock arm 17 rides over the engaged portion 19 and the dustproof lock arm 17 is restored inward. Thus, the locking surface of the engaging portion 15 of the dustproof lock arm 17 locks the engaged portion 19 to hold the dustproof cap 13 in the assembled state with respect to the housing 3.

  Here, the elastic force of the dustproof lock arm 17 causes the dustproof lock arm 17 to bend by moving the dustproof cap 13 in the direction in which the dustproof cap 13 is pulled out from the housing 3, and causes the engagement portion 15 to be engaged with the engaged portion 19. It is set to the extent that it can be released.

  Therefore, when the dustproof cap 13 is removed from the housing 3, the dustproof cap 13 can be easily removed from the housing 3 by moving the dustproof cap 13 in the direction in which the dustproof cap 13 is pulled out of the housing 3.

  In the closed portion 9 of the dustproof cap 13, a hole 27 communicating the inside with the outside is provided at a portion where the dustproof lock arm 17 is located, and when the dustproof cap 13 can not be pulled out from the housing 3 By inserting a jig or the like into the hole 27 and bending the dustproof lock arm 17, the engagement between the engaging portion 15 and the engaged portion 19 can be released.

  Even when a jig or the like is inserted into the hole 27 as described above, since the lock arm 7 and the dustproof lock arm 17 are arranged apart from each other, the jig or the like inserted into the dustproof cap 13 is There is no interference with the lock arm 7 and deformation and breakage of the lock arm 7 can be prevented.

  In such a dustproof cap attached connector 1, the dustproof lock arm 17 having the engagement portion 15 provided on the dustproof cap 13 and spaced apart from the lock arm 7 and engaged on the engagement portion 15 provided on the housing 3 The dustproof cap 13 is assembled to the housing 3 by the engagement with the possible engaged portions 19.

  Therefore, when removing the dustproof cap 13 from the housing 3, the dustproof cap 13 is deformed or a jig is inserted into the dustproof cap 13, etc. Even when the engagement with 19 is released, the dustproof lock arm 17, the engaged portion 19 and the jig do not interfere with the lock arm 7, and the lock arm 7 is not affected by deformation or breakage. .

  Therefore, in such a dustproof cap attached connector 1, the dustproof cap 13 can be removed from the housing 3 without affecting the lock arm 7, so that when the housing 3 is fitted with the mating housing, Can be stably held.

  Further, since the engagement between the engagement portion 15 of the dustproof lock arm 17 and the engaged portion 19 is released by moving the dustproof cap 13 in the direction of removing it from the housing 3, the deformation of the dustproof cap 13 or the dustproof cap There is no need to insert a jig or the like into the housing 13, and the influence on the lock arm 7 can be further prevented.

  Furthermore, since the engaged portion 19 is positioned closer to the closing portion 9 than the locking portion 5 of the lock arm 7, the locking portion 5 of the lock arm 7 and the engagement portion 15 of the dustproof lock arm 17 are erroneously detected. Even if the dustproof cap 13 is assembled to the housing 3 at the portion where the two coincide, the locking portion 5 of the lock arm 7 and the engaging portion 15 of the dustproof lock arm 17 do not interfere with each other. It is possible to prevent the influence on the lock arm 7 due to the erroneous attachment of the dustproof cap 13.

  In the dustproof cap attached connector according to the embodiment of the present invention, the dustproof cap is provided with the dustproof lock arm and the housing is provided with the engaged portion, but the present invention is not limited thereto. The housing may be provided with a dustproof lock arm.

  Further, although the engaged portion is formed in a rib shape continuous in the circumferential direction on the outer periphery on the opening side of the housing, the present invention is not limited to this, and the engagement portion is provided at a portion coinciding with the engagement portion of the dustproof lock arm The engaging portion may have any shape as long as it can be engaged with the engaging portion of the dustproof lock arm.

  Furthermore, although the engaged portion is not provided in a rib shape on the upper surface of the housing, the engaged portion may be provided as an annular rib that is completely continuous in the circumferential direction of the outer periphery of the housing.

  In this case, even if the dustproof cap is assembled with respect to the housing in any direction, the engaged portion can be assembled to the engaging portion of the dustproof lock arm, so that the dustproof cap can be assembled to the housing There is no need to confirm the direction of the dustproof cap, and the assemblability can be improved. In particular, it is effective when the shape of the housing or the dustproof cap is formed in a perfect circle or a regular polygon.

DESCRIPTION OF SYMBOLS 1 ... Connector with a dustproof cap 3 ... Housing 5 ... Locking part 7 ... Lock arm 9 ... Blocking part 11 ... Protection part 13 ... Dustproof cap 15 ... Engagement part 17 ... Dustproof lock arm 19 ... Engaged part

Claims (3)

A housing having an opening into which a mating housing can be fitted, a lock arm that is flexibly provided in the housing and has a locking portion that can be locked to the mating housing, and a closure that is assembled to the housing and closes the opening A dustproof cap attached connector comprising: a dustproof cap covering the outer periphery of the housing and a protective portion having a locking portion of the lock arm disposed therein;
In one of the housing and the dustproof cap, there is provided a dustproof lock arm between the housing and the protective portion, which is disposed so as to be flexible from the lock arm and has an engaging portion.
The other of the housing and the dustproof cap is provided with an engaged portion disposed between the housing and the protective portion in proximity to the dustproof lock arm and engageable with the engaging portion .
The connector with a dustproof cap, wherein the engaged portion is positioned closer to the closing portion than a locking portion of the lock arm . A housing having an opening into which a mating housing can be fitted, a lock arm that is flexibly provided in the housing and has a locking portion that can be locked to the mating housing, and a closure that is assembled to the housing and closes the opening A dustproof cap attached connector comprising: a dustproof cap covering the outer periphery of the housing and a protective portion having a locking portion of the lock arm disposed therein;
In one of the housing and the dustproof cap, a dustproof lock arm having an engaging portion is disposed between the housing and the protective portion so as to be flexible and separated from the lock arm inside the protective portion. Provided
The other one of the housing and the dustproof cap is disposed between the housing and the protective portion inside the protective portion, in proximity to the dustproof lock arm and engageable with the engaging portion A connector with a dustproof cap characterized in that a portion is provided . It is a connector with a dustproof cap of Claim 1 or 2, Comprising:
The dustproof cap connector is characterized in that the engagement between the engagement portion of the dustproof lock arm and the engaged portion is released by moving the dustproof cap in a direction to be removed from the housing .

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