JP2016046181A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector capable of ensuring the holding force of a terminal, while suppressing the movement of a terminal in a terminal housing chamber.SOLUTION: In a connector 1 including a housing 3, a terminal housing chamber 5 provided in the housing 3, and a terminal 7 inserted from one side face of the housing 3 into the terminal housing chamber 5, the terminal housing chamber 5 has a first locking lance 11 provided so that it can be deflected downward in a direction perpendicular to the insertion direction of the terminal 7, and engaging with the box 9, and a pair of second locking lances 13, 13 provided so that they can be deflected on both left and right directions perpendicular to the insertion direction of the terminal 7, and engaging with the box 9.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a connector.

  Conventionally, a connector having a housing, a terminal accommodating chamber provided inside the housing, and a terminal inserted from one side of the housing and inserted into the terminal accommodating chamber is known (for example, , See Patent Document 1).

  In this connector, a locking lance is provided below the terminal accommodating chamber so that the terminal can be bent, and a locking projection provided on the terminal is engaged with the locking lance so that the terminal can be removed from the terminal accommodating chamber. Stopped.

JP 2004-14304 A

  However, in the connector as described in Patent Document 1, since the terminal is prevented from coming off by a locking lance provided at one place in the terminal accommodating chamber, there are few portions for holding the terminal in the terminal accommodating chamber, It is difficult to secure the holding force, and when an external force such as vibration is applied, the terminal may move greatly in the terminal accommodating chamber.

  Therefore, an object of the present invention is to provide a connector that can ensure the holding force of the terminal and can suppress the movement of the terminal in the terminal accommodating chamber.

  The invention according to claim 1 is a connector comprising a housing, a terminal accommodating chamber provided inside the housing, and a terminal inserted from one side of the housing and inserted into the terminal accommodating chamber. The terminal has a box portion disposed on the other side of the housing, and the terminal accommodating chamber bends in at least one of the vertical directions in a direction orthogonal to the insertion direction in which the terminal is inserted. A first locking lance that can be provided and engaged with the box part, and can be bent on both sides in the left-right direction of the direction orthogonal to the insertion direction in which the terminal is inserted, and is engaged with the box part. And a pair of second locking lances.

  In this connector, the terminal accommodating chamber is provided so as to be able to bend in at least one of the vertical directions and is engaged with the box portion of the terminal; Since it has a pair of 2nd latching lances engaged with a box part, a terminal is latched by at least three places in a terminal storage chamber, and the retention strength of the terminal in a terminal storage chamber can be ensured.

  Further, since the box portion of the terminal is locked to at least one of the vertical direction and both sides of the horizontal direction by the first locking lance and the pair of second locking lances, it is assumed that an external force such as vibration is applied. However, it is possible to greatly restrict the movement of the terminal in the terminal accommodating chamber.

  Therefore, in such a connector, since the terminal is locked at at least three places in the terminal accommodating chamber, the holding force of the terminal can be secured, and the movement of the terminal in the terminal accommodating chamber can be suppressed.

  The invention according to claim 2 is the connector according to claim 1, wherein the first locking lance is provided with an inclined portion inclined toward the insertion direction of the terminal, and the pair of second engagement members. The locking lances are each provided with a protruding portion that protrudes in a direction facing each other, and the box portion of the terminal includes a locking protrusion that is engaged with the inclined portion of the first locking lance. And a locking recess that is engaged with the protrusions of the pair of second locking lances.

  In this connector, a locking projection that is engaged with the inclined portion of the first locking lance and a locking recess that is engaged with the projections of the pair of second locking lances are provided in the box portion of the terminal. Therefore, it is possible to reliably prevent the terminal from coming out of the terminal accommodating chamber.

  Further, in the engagement between the inclined portion of the first locking lance and the locking projection, the vertical movement of the terminal can be surely restricted, and the protrusion of the pair of second locking lances and the locking recess In the engagement, the movement of the terminal in the left-right direction can be reliably restricted.

  According to the present invention, it is possible to provide a connector that can secure the holding force of the terminal and can suppress the movement of the terminal in the terminal accommodating chamber.

It is a perspective view of the housing of the connector concerning an embodiment of the invention. It is sectional drawing of the housing of the connector which concerns on embodiment of this invention. (A) is a cross-sectional view of the housing of the connector according to the embodiment of the present invention. (B) is a longitudinal cross-sectional view of the housing of the connector which concerns on embodiment of this invention. (A), (b) is a perspective view of the terminal of the connector which concerns on embodiment of this invention. (A) is a longitudinal cross-sectional view of the terminal of the connector which concerns on embodiment of this invention. (B) is a cross-sectional view of the terminal of the connector which concerns on embodiment of this invention. (A) is a front view of the connector which concerns on embodiment of this invention. (B) is sectional drawing of the connector which concerns on embodiment of this invention. It is a principal part enlarged view of FIG.6 (b). It is sectional drawing of the connector which concerns on embodiment of this invention. It is a principal part enlarged view of FIG.

  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 terminal accommodating chamber 5 provided inside the housing 3, and a terminal 7 inserted from one side of the housing 3 and inserted into the terminal accommodating chamber 5. It has.

  Further, the terminal 7 has a box portion 9 disposed on the other side surface of the housing 3.

  The terminal accommodating chamber 5 includes a first locking lance 11 which is provided so as to be able to bend downward in the vertical direction in a direction orthogonal to the insertion direction in which the terminal 7 is inserted, and is engaged with the box portion 9. And a pair of second locking lances 13 and 13 which are provided so as to be able to bend on both sides in the left-right direction out of the direction orthogonal to the insertion direction.

  In addition, the first locking lance 11 is provided with an inclined portion 15 that is inclined toward the insertion direction of the terminal 7, and the pair of second locking lances 13, 13 are directed in directions opposite to each other. Projected portions 17 and 17 are provided, respectively.

  Then, the box portion 9 of the terminal 7 is engaged with a locking projection 19 that is engaged with the inclined portion 15 of the first locking lance 11 and the protrusions 17 and 17 of the pair of second locking lances 13 and 13. Locking recesses 21 and 21 are provided.

  As shown in FIGS. 1 to 9, the housing 3 is made of an insulating material such as synthetic resin, is formed in a housing shape, and has a male shape having a tab-like connection portion inserted into the box portion 9 of the terminal 7. A mating housing (not shown) that accommodates a mating terminal (not shown) made of a terminal can be fitted.

  A plurality of terminal accommodating chambers 5 are formed inside the housing 3. When the terminals 7 are accommodated in the terminal accommodating chambers 5, the terminals 7 and the mating terminals are electrically connected with each other. Connected.

  The terminal accommodating chambers 5 are arranged in a plurality of rows in the width direction of the housing 3 and in two stages in the height direction of the housing 3. In addition, a spacer insertion hole 25 into which a spacer 23 that double-locks the terminal 7 is inserted in the center portion of the terminal accommodating chamber 5 in a state where the terminal 7 is inserted into the terminal accommodating chamber 5. The chambers 5 and 5 are provided so as to open downward.

  A terminal 7 is inserted into the terminal accommodating chamber 5 from a terminal insertion port 27 provided on one side surface of the housing 3, and a tab insertion port 29 provided on the other side surface of the housing 3 and the box portion 9 of the terminal 7. The terminal 7 is accommodated so that the

  The terminal 7 is made of a conductive material, and is provided with a crimping portion that is crimped and electrically connected to an electric wire (not shown) connected to a power source or equipment on one end side, and is formed in a square shape on the other end side. The female terminal is provided with the box portion 9 formed.

  The terminal 7 is provided with a contact spring portion 31 provided in the box portion 9 so as to be able to bend. By fitting the housing 3 and the mating housing into the box portion 9, the tab-shaped connecting portion of the mating terminal inserted from the tab insertion port 29 is inserted, and the tab-shaped connecting portion and the contact spring portion 31 are inserted. And the terminal 7 and the mating terminal are electrically connected.

  Thus, the plurality of terminals 7 accommodated in the plurality of terminal accommodating chambers 5 of the housing 3 include a first locking lance 11 provided in each terminal accommodating chamber 5, a pair of second locking lances 13, 13 is engaged with the box portion 9 to prevent the terminal 7 from coming off from the terminal accommodating chamber 5.

  Note that a spacer locking portion 33 that is engaged with the spacer 23 that is inserted from the spacer insertion hole 25 of the housing 3 is provided at the end of the box portion 9 on the crimping portion side, and the terminal 7 is provided in the terminal accommodating chamber 5. The terminal 7 is double locked in the terminal receiving chamber 5 by engaging the spacer locking portion 33 with the spacer 23 in the stored state.

  The 1st latching lance 11 is provided in the lower wall in the terminal storage chamber 5 so that bending in the up-down direction is possible. On the free end side of the first locking lance 11, the upper part is located on the front side in the insertion direction of the terminal 7, and the lower part is located on the rear side in the insertion direction of the terminal 7, so that it is inclined downward from the upper part to the lower part. An inclined portion 15 that is inclined is provided.

  When the terminal 7 is inserted from the terminal insertion port 27, the first locking lance 11 is bent downward with the upper surface contacting the box portion 9 of the terminal 7, and the terminal 7 is When accommodated in the regular position, it is restored upward, and the inclined portion 15 engages with a locking projection 19 provided on the box portion 9 to prevent the terminal 7 from coming out of the terminal accommodating chamber 5.

  A release portion 35 extends from the front (left side in FIG. 7) of the inclined portion 15 of the first locking lance 11, and a jig or the like is inserted from the tab insertion port 29 side so that the release portion 35 is By pressing downward, the first locking lance 11 can be bent downward and the terminal 7 can be unlocked by the first locking lance 11.

  The locking projection 19 is located at the edge of the front side of the terminal 7 in the insertion direction of the lance hole 37 provided through the upper wall of the box 9 of the terminal 7. It is projecting toward. The locking projection 19 is engaged with the inclined portion 15 inserted into the lance hole 37 by the restoration of the first locking lance 11.

  The engagement between the locking projection 19 and the inclined portion 15 is such that the inclined portion 15 is inclined toward the front in the insertion direction of the terminal 7, so that the engaging surfaces are engaged in the vertical direction. For this reason, it is possible to restrict the terminal 7 from moving up and down in the terminal accommodating chamber 5 while preventing the terminal 7 from coming off from the terminal accommodating chamber 5.

  The pair of second locking lances 13, 13 are provided on both side walls in the terminal accommodating chamber 5 so as to be deflectable in the left-right direction. On the free end side of the pair of second locking lances 13, there are protrusions 17, 17 formed in a triangular shape so as to have inclined surfaces in the insertion direction and the withdrawal direction of the terminal 7, respectively. It protrudes toward the inside of 5.

  When the terminal 7 is inserted from the terminal insertion port 27, the pair of second locking lances 13, 13 is brought into contact with the box portion 9 of the terminal 7 and the outside of the terminal accommodating chamber 5 ( When the terminal 7 is accommodated in the normal position of the terminal accommodating chamber 5, the terminal 7 is restored inward, and the protrusions 17 and 17 are provided in the locking recess 9. 21 and 21 are engaged to prevent the terminal 7 from coming off from the terminal accommodating chamber 5.

  The locking recesses 21 and 21 are provided in a concave shape on both side walls of the box portion 9 of the terminal 7. The protrusions 17 and 17 of the second locking lances 13 and 13 are engaged with the locking recesses 21 and 21 by restoring the pair of second locking lances 13 and 13, respectively.

  The engaging recesses 21 and 21 and the protrusions 17 and 17 are engaged so as to sandwich the box portion 9 of the terminal 7 from the left and right directions. For this reason, it is possible to restrict the terminal 7 from moving in the left-right direction within the terminal accommodating chamber 5 while preventing the terminal 7 from coming off from the terminal accommodating chamber 5.

  When extracting the terminal 7 from the terminal accommodating chamber 5, the release portion 35 of the first locking lance 11 is pressed downward by a jig or the like to release the locking of the first locking lance 11. By pulling out the terminal 7 from the terminal accommodating chamber 5, the engagement between the protrusions 17, 17 of the pair of second locking lances 13, 13 and the locking recesses 21, 21 can be released.

  Thus, the holding force of the terminal 7 with respect to the terminal accommodating chamber 5 can be improved by locking the terminal 7 by the three positions of the first locking lance 11 and the pair of second locking lances 13 and 13. The movement of the terminal 7 in the terminal accommodating chamber 5 with respect to external force such as vibration can be greatly suppressed.

  In such a connector 1, the terminal accommodating chamber 5 is provided with a first locking lance 11 provided so as to be able to bend downward and engaged with the box portion 9 of the terminal 7, and provided with terminals that can be flexed on both sides in the left-right direction. 7 has a pair of second locking lances 13 and 13 engaged with the box portion 9, so that the terminal 7 is locked at three locations in the terminal accommodating chamber 5, and the terminal 7 in the terminal accommodating chamber 5 is A holding force can be secured.

  Further, since the box portion 9 of the terminal 7 is locked at the lower side and both sides in the left-right direction by the first locking lance 11 and the pair of second locking lances 13 and 13, external force such as vibration is applied. Even so, it is possible to greatly restrict the movement of the terminal 7 in the terminal accommodating chamber 5.

  Therefore, in such a connector 1, since the terminals 7 are locked at three positions in the terminal accommodating chamber 5, the holding force of the terminals 7 can be secured, and the movement of the terminals 7 in the terminal accommodating chamber 5 is suppressed. be able to.

  Further, the box portion 9 of the terminal 7 is engaged with a locking projection 19 that is engaged with the inclined portion 15 of the first locking lance 11 and the protrusions 17 and 17 of the pair of second locking lances 13 and 13. Since the engaging recesses 21 and 21 to be combined are provided, the terminal 7 can be reliably prevented from coming out of the terminal accommodating chamber 5.

  Further, in the engagement between the inclined portion 15 of the first locking lance 11 and the locking projection 19, the vertical movement of the terminal 7 can be surely restricted, and the pair of second locking lances 13, 13. In the engagement between the projections 17 and 17 and the locking recesses 21 and 21, the movement of the terminal 7 in the left-right direction can be reliably restricted.

  In the connector according to the embodiment of the present invention, the second locking lance is provided with a protrusion, and the terminal box is provided with a locking recess. A protrusion may be provided, and a locking recess that engages with the protrusion may be provided in the second locking lance.

  Further, the terminal is a female terminal provided with a contact spring part so that it can be bent in the box part. However, the terminal is not limited to this, and is a male terminal having a tab-like connection part on the tip side of the box part. May be.

  Further, the first locking lance is provided below the terminal accommodating chamber. However, the first locking lance is not limited to this, and the first locking lance is provided above the terminal accommodating chamber, or the pair of first locking lances are terminals. You may provide in the both sides of the up-down direction in a storage chamber.

DESCRIPTION OF SYMBOLS 1 ... Connector 3 ... Housing 5 ... Terminal accommodating chamber 7 ... Terminal 9 ... Box part 11 ... 1st latching lance 13 ... 2nd latching lance 15 ... Inclined part 17 ... Protrusion 19 ... Locking protrusion 21 ... Locking recessed part

Claims (2)

A connector comprising a housing, a terminal accommodating chamber provided inside the housing, and a terminal inserted from one side of the housing and inserted into the terminal accommodating chamber,
The terminal has a box portion disposed on the other side surface of the housing,
The terminal accommodating chamber is provided with a first locking lance that is provided so as to be able to bend in at least one of the up and down directions of a direction orthogonal to an insertion direction in which the terminals are inserted, and is engaged with the box portion; A connector having a pair of second locking lances that are provided so as to be able to bend on both sides in the left-right direction in a direction orthogonal to the insertion direction in which the box is inserted and is engaged with the box portion. The connector according to claim 1,
The first locking lance is provided with an inclined portion that is inclined toward the insertion direction of the terminal, and the pair of second locking lances are protruded in a direction opposite to each other. Each part is provided,
The box portion of the terminal is provided with a locking projection to be engaged with the inclined portion of the first locking lance and a locking recess to be engaged with the protruding portions of the pair of second locking lances. A connector characterized by that.

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