JP4991603B2 - Connector with terminal holder - Google Patents

Description

  The present invention relates to a connector with a terminal holder in which one end of a connector housing is provided with a terminal holder that prevents a terminal inserted into a terminal housing chamber of the connector housing from being pulled out.

  FIG. 11 is a perspective view showing an example of a conventional connector with a terminal holder described in Patent Document 1, for example.

  The connector with terminal holder includes a connector housing 110 having an opening of each terminal accommodating chamber 115 on the rear end surface 111, a terminal (not shown) inserted into each terminal accommodating chamber 115, and a connector housing 110 after inserting the terminal. It is composed of a plate-like rear holder (terminal holder) 130 with an electric wire insertion portion 135 that prevents the terminal from being pulled out by being attached to the rear end surface 111.

A frame portion 112 is formed upright on the peripheral edge of the rear end of the connector housing 110, and the lower half of the rear holder 130 in the thickness direction is accommodated inside the frame portion 112, with the rear holder 130 being accommodated. The rear holder 130 is locked by engaging the locking projections 138 formed on the outer periphery of the rear holder 130 with the locking holes 118 formed in the frame portion 112. A release hole 137 for inserting a release jig is provided in the upper half of the outer peripheral surface of the rear holder 130 in addition to the locking hole 118.
JP 7-245140 A

  Incidentally, in the connector with a terminal holder shown in FIG. 11, the rear holder 130 is prevented from being detached by merely engaging the locking hole 118 on the connector housing side and the locking protrusion 138 on the rear holder 130 side. Since the plurality of terminals are pressed so as not to come off by the resultant force, there is a problem that the terminal holding force is weak. On the other hand, it is conceivable to increase the engagement force in order to increase the holding force. However, in this case, since the insertion force when the rear holder 130 is inserted becomes large, there is a situation that the holding force cannot be increased so much.

  Since the rear holder 130 is locked to the connector housing 110 by forcibly fitting the locking projections 138 into the locking holes 118, once the locking is performed, the locking holes 118 and the engaging holes 118 and There is a possibility that the stop protrusion 138 may be damaged, and there is a problem that it is difficult to reuse the rear holder 130.

  Further, since the terminal is prevented from coming off by applying the back surface of the rear holder 130 to the terminal, there is also a problem that once the gap is formed between the rear holder 130 and the terminal, the terminal is likely to be loose due to vibration.

  In consideration of the above circumstances, the present invention has a terminal holder that can exhibit a high terminal holding force by the terminal holder, can be easily reused, and can prevent the terminal from rattling. An object is to provide a connector.

  The connector with a terminal holder according to the first aspect of the present invention has a pair of first terminals extending along the one end face at both side edges of the one end face and having an opening of each terminal receiving chamber for inserting a terminal into the one end face. A connector housing having a rail, a terminal inserted into each of the terminal accommodating chambers, and a slidably engaged with the first rail of the connector housing on both side edges, thereby being orthogonal to the one end surface. A second rail that is prevented from detaching in a direction, and is slid with the second rail engaged with the first rail, thereby being mounted at an appropriate mounting position on one end surface of the connector housing. A terminal holder that prevents the terminal from coming out of the opening, and the terminal holder has a plate-like holder body having the second rail on both side edges, the holder body, and the connector. It is formed integrally with the holder main body so as to be positioned between one end face of the housing, and can be freely bent in a direction perpendicular to the one end face, and the holder main body is properly fitted on one end face of the connector housing. A lock arm that prevents the holder body from coming off in the sliding direction by locking with the lock portion on the connector housing side when sliding toward the mounting position. A terminal pressing rib for pressing one end of the terminal inserted into each terminal accommodating chamber is provided.

  Invention of Claim 2 is a connector with a terminal holder of Claim 1, Comprising: When the said terminal holder is slid toward the suitable mounting position on the one end surface of the said connector housing to the said terminal holding rib An oblique terminal pick-up surface is provided for sliding the terminal toward the inside of the terminal accommodating chamber by sliding to the end of the terminal protruding from the opening of the terminal accommodating chamber.

  Invention of Claim 3 is a connector with a terminal holder of Claim 1, Comprising: As the said terminal, the female-female terminal which can receive a mating male terminal from both sides is provided, and the other end side of the said connector housing is provided. The other end insertion hole of the mating male terminal to be fitted from the other end side to the terminal inserted into each terminal accommodating chamber is provided, and the terminal holder attached to one end side of the connector housing One end side insertion hole of a mating male terminal to be fitted from one end side with respect to the terminal inserted into each terminal accommodating chamber is provided, and the terminal pressing rib is provided at a position avoiding the one end side insertion hole. It is characterized by having.

  According to the first aspect of the present invention, in order to prevent the terminal holder from coming off in the terminal removal direction, the second rail on the terminal holder side is engaged with the first rail on the connector housing side, and the terminal holder is inserted in the terminal insertion direction in this state. Since this is done by sliding in a direction orthogonal to the terminal, the holding force for the terminal can be increased. In addition, since the terminal is pressed by the pressing rib of the flexible lock arm provided in the terminal holder, it is possible to prevent the terminal from rattling due to vibration.

  In addition, the terminal holder is prevented from being detached in the terminal removal direction by engaging the rail, and the terminal holder is prevented from coming off in the sliding direction by the lock arm, and no force in the terminal removal direction is applied to the engagement portion of the lock arm. Thus, damage to the engaging portion of the lock arm accompanying insertion / removal of the terminal holder can be almost eliminated, and the terminal holder can be easily used.

  According to the second aspect of the present invention, when the terminal is inserted into the terminal housing chamber of the connector housing, the terminal holder can be connected to the connector housing even when the terminal is in an intermediate insertion state where one end of the terminal is not sufficiently inside the terminal housing chamber. Since the terminal can be pushed in by the pick-up surface of the terminal pressing rib by sliding it for mounting on the connector, it is possible to eliminate the halfway insertion state of the terminal simply by mounting the terminal holder on the connector housing.

  According to the invention of claim 3, since the mating male terminal can be inserted from both sides of the female-female terminal accommodated in the terminal accommodating chamber of the connector housing, it can be used as a relay connector.

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

  FIG. 1 is a perspective view showing a state of the connector with a terminal holder according to the embodiment before the terminal holder is attached, FIG. 2 is a view showing a state where the terminal holder is attached to the connector housing, and FIG. FIG. 2B is a perspective view showing a state when the mounting is completed, FIG. 3 is a perspective view showing a configuration of a single terminal holder, and FIG. 4 is a plan view showing a configuration on the upper surface side of the terminal holder. 5 is a plan view showing the configuration of the lower surface side of the terminal holder, FIG. 6 is a sectional view taken along arrow VI-VI in FIG. 4, FIG. 7 is a sectional view taken along arrow VII-VII in FIG. FIG. 9 is a cross-sectional view of the main part showing a state when the terminal holder is completely installed, and FIG. 10 is a view of the terminal holder mounted state seen from the sliding direction of the terminal holder. It is sectional drawing.

  This connector with a terminal holder includes a connector housing 10 and a terminal holder 30 made of synthetic resin, and metal terminals 50 and 51 (see FIG. 10).

  As shown in FIG. 1, the connector housing 10 has an opening of each terminal accommodating chamber 14, 15 for inserting a terminal in a substantially rectangular one end surface 11, and an upright plane on the periphery of the one end surface 11. The U-shaped frame portion 12 has a pair of first ends extending along the one end surface 11 of the connector housing 10 at sides parallel to each other (corresponding to both side edges of the one end surface) of the U-shaped frame portion 12. 1 rails 13 and 13 are provided.

  As shown in FIG. 10, the terminals 50 and 51 are inserted into the terminal accommodating chambers 14 and 15 from the opening of the one end surface 11, and are inserted in the insertion direction by the rear walls of the terminal accommodating chambers 14 and 15. Positioned relative to the front side. In this case, the terminals 50 and 51 are female-female terminals that can receive the mating male terminal 55 from both sides, and the terminals 50 inserted into the terminal accommodating chambers 14 and 15 on the other end side of the connector housing 10. , 51 is provided with an insertion hole (not shown) on the other end side of the mating male terminal 55 fitted from the other end side.

  In addition, as shown by a portion N surrounded by a two-dot chain line in FIG. 10, a lance for locking the terminals 50 and 51 is not provided in the terminal accommodating chambers 14 and 15, and the terminals 50 and 51 are disconnected. It can move freely in any direction. Moreover, since the lance is not provided, the shape of the inner walls of the terminal accommodating chambers 14 and 15 is greatly simplified.

  As shown in FIGS. 1 and 2, the terminal holder 30 is attached to one end surface 11 of the connector housing 10 from a direction parallel to the one end surface 11, that is, from a lateral direction orthogonal to the axial direction of the connector housing 10. The second rail 33 is slidably engaged with the first rail 13 of the connector housing 10 at both side edges. The second rail 33 is engaged with the first rail 13 on the connector housing 10 side, thereby preventing the terminal holder 30 from being detached in a direction (terminal disconnection direction) perpendicular to the one end surface 11 of the connector housing 10. It is configured to be able to.

  Then, with the second rail 33 on the terminal holder 30 side engaged with the first rail 13 on the connector housing 10 side, the terminal holder 30 is slid in the direction of arrow Y in FIG. The terminal holder 30 can be mounted at an appropriate mounting position on the end surface 11, and thereby, the terminal holder 30 can prevent the terminals 50 and 51 from coming off from the opening.

  As shown in FIGS. 3 to 9, the terminal holder 30 includes a rectangular plate-shaped holder body 31 having the second rails 33 on both side edges, and between the holder body 31 and one end surface 11 of the connector housing 10. It has a rectangular plate-like lock arm 32 formed integrally with the holder main body 31 so as to be positioned. As shown in FIG. 7, the lock arm 32 can be bent in a direction perpendicular to the one end surface 11 of the connector housing with the base end 32 a connected to the holder body 31 as a fulcrum. Yes.

  On the free end side of the lock arm 32, the holder main body 31 is slid toward the proper mounting position on the one end surface 11 of the connector housing 10 with the first and second rails 13 and 33 engaged with each other. In some cases, a lock protrusion 38 that prevents the holder body 31 from coming off in the sliding direction by engaging with a lock protrusion (lock portion) 18 on the connector housing 10 side is provided.

  In addition, on the lower surface of the lock arm 32, terminal holding ribs 36 and 37 for holding one end of the terminals 50 and 51 inserted into the terminal receiving chambers 14 and 15 are arranged in correspondence with positions where the terminal receiving chambers 14 and 15 exist. Multiple protrusions are provided. Each of the terminal holding ribs 36 and 37 is pressed against one end of the terminals 50 and 51 to hold the terminals 50 and 51, and the terminal holder 30 is attached to one end of the connector housing 10 as shown in FIG. When the terminal 50 (51) is slid toward the proper mounting position, the terminal 50 (51) is slid to the end of the terminal 50 (51) protruding from the opening of the terminal storage chamber 15 (14), thereby causing the terminal 50 (51) to move. 15 (14) are provided with diagonal terminal pick-up surfaces 36b and 37b to be pushed into the interior of the main body 15 (14).

  In addition, the terminal holder 30 is provided with one end side insertion holes 34 and 35 for mating male terminals that are fitted from the one end side to the terminals 50 and 51 inserted into the respective terminal accommodating chambers 14 and 15. The terminal pressing ribs 36 and 37 of the lock arm 32 are provided at positions avoiding the one end side insertion holes 34 and 35.

  Next, the operation will be described.

  When assembling this connector, first, the terminals 50 and 51 are inserted into the terminal accommodating chambers 14 and 15 from the opening provided on the one end surface 11 of the connector housing 10. Next, the second rails 33 on both side edges of the terminal holder 30 are engaged with the first rail 13 on the connector housing 10 side, and in this state, the terminal holder 30 is slid as shown in FIG. Slide to the proper mounting position. Then, the lock protrusion 38 of the lock arm 32 gets over and engages the lock protrusion 18 on the connector housing 10 side, the terminal holder 30 is prevented from coming off in the sliding direction, and the assembly is completed.

  In this state, the pressing surfaces 36a and 37a of the terminal pressing ribs 36 and 37 provided on the lock arm 32 press the one end of the terminals 50 and 51 as shown in FIGS. It can be surely retained.

  In the middle of the operation of sliding the terminal holder 30, as shown in FIG. 8, when one end of the terminal 50 slightly protrudes from the opening, the pick-up surfaces 36b of the terminal pressing ribs 36 and 37 according to the sliding operation, 37 b pushes the terminals 50 and 51 into the terminal accommodating chambers 14 and 15.

  As described above, according to the connector with a terminal holder of the present embodiment, the terminal holder 30 is prevented from being detached in the terminal removal direction by engaging the second rail 33 on the terminal holder 30 side with the first rail 13 on the connector housing 10 side. In this state, since the terminal holder 30 is slid in a direction orthogonal to the insertion direction of the terminals 50 and 51, the holding force for the terminals 50 and 51 can be increased.

  Further, since the terminals 50 and 51 are pressed by the terminal pressing ribs 36 and 37 of the flexible lock arm 32 provided in the terminal holder 30, it is possible to prevent the terminals 50 and 51 from rattling due to vibration. .

  Further, even when the terminals 50 and 51 are inserted into the terminal accommodating chambers 14 and 15 of the connector housing 10, even when the terminals 50 and 51 are not inserted sufficiently inside the terminal accommodating chambers 14 and 15, even in the midway insertion state. By sliding the terminal holder 30 to attach it to the connector housing 10, the terminals 50 and 51 can be pushed into the terminal accommodating chambers 14 and 15 by the pick-up surfaces 36a and 37a of the terminal pressing ribs 36 and 37. By simply attaching the terminal holder 30 to the connector housing 10, it is possible to eliminate the halfway insertion state of the terminals 50 and 51.

  Further, the terminal holder 30 is prevented from being detached in the terminal withdrawal direction by engaging the rails 13 and 33, and the terminal holder 30 is prevented from coming off in the sliding direction by the lock arm 32. Since the protrusions 18, 38) are prevented from being applied with a force in the terminal pull-out direction, damage to the engaging portion of the lock arm 32 due to insertion / removal of the terminal holder 30 can be almost eliminated, and the terminal holder 30 can be reused. Can be easily done.

  Further, since the mating male terminal 55 can be inserted from both sides of the terminals (female-female terminals) 50 and 51 accommodated in the terminal accommodating chambers 14 and 15 of the connector housing 10, it can be used as a relay connector.

It is a perspective view which shows the state before mounting | wearing with the terminal holder of the connector with a terminal holder of embodiment of this invention. It is a figure which shows the state which has mounted | worn the terminal holder in the connector housing, (a) is a perspective view which shows the state in the middle of mounting | wearing, (b) is a perspective view which shows the state at the time of mounting completion. It is a perspective view which shows the structure of a terminal holder single item. It is a top view which shows the structure of the upper surface side of a terminal holder. It is a top view which shows the structure of the lower surface side of a terminal holder. It is VI-VI arrow sectional drawing of FIG. It is VII-VII arrow sectional drawing of FIG. It is sectional drawing of the principal part which shows the state in the middle of mounting | wearing of a terminal holder. It is sectional drawing of the principal part which shows the state at the time of completion of mounting | wearing of a terminal holder. It is sectional drawing which looked at the state equipped with the terminal holder from the sliding direction of the terminal holder. It is a perspective view which shows the structure of the conventional connector with a terminal holder.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Connector housing 11 One end surface 13 1st rails 14 and 15 Terminal storage chamber 18 Lock protrusion (lock part)
30 Terminal holder 31 Holder body 32 Lock arm 33 Second rail 34, 35 Insertion hole 36, 37 on one end side Terminal holding ribs 36b, 37b Picking surface 50, 51 Terminal 55 Mating male terminal

Claims (3)

A connector housing having a pair of first rails extending along the one end surface on both side edges of the one end surface, and having an opening of each terminal receiving chamber for inserting a terminal on one end surface;
A terminal inserted into each terminal accommodating chamber;
On both side edges, there is a second rail that is slidably engaged with the first rail of the connector housing, and is prevented from being detached in a direction perpendicular to the one end surface by being engaged. And a terminal holder that is slid with the second rail engaged to be mounted at an appropriate mounting position on one end face of the connector housing, thereby preventing the terminal from coming off from the opening. Prepared,
The terminal holder is formed integrally with the holder main body so as to be located between the plate-shaped holder main body having the second rail on both side edges, and between the holder main body and one end surface of the connector housing, When the holder body is slid toward the proper mounting position on the one end surface of the connector housing, it is locked with the lock portion on the connector housing side. A lock arm that prevents the holder body from coming off in the sliding direction,
A connector with a terminal holder, wherein the lock arm is provided with a terminal pressing rib for pressing one end of a terminal inserted into each terminal accommodating chamber. The connector with a terminal holder according to claim 1,
When the terminal holder is slid toward the appropriate mounting position on the one end face of the connector housing, the terminal holding rib slides on the end of the terminal protruding from the opening of the terminal accommodating chamber. A connector with a terminal holder, characterized in that an inclined terminal pick-up surface for pushing the terminal toward the inside of the terminal accommodating chamber is provided. The connector with a terminal holder according to claim 1,
As the terminal, a female-female terminal capable of receiving a mating male terminal from both sides is provided, and the other end side of the connector housing is fitted from the other end side to the terminal inserted into each terminal accommodating chamber. The mating male terminal is provided with an insertion hole on the other end side, and is fitted to the terminal holder mounted on one end side of the connector housing from one end side with respect to the terminal inserted in each terminal accommodating chamber. A connector with a terminal holder, wherein an insertion hole on one end side of a male terminal is provided, and the terminal pressing rib is provided at a position avoiding the insertion hole on the one end side.

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