JP2013197001A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a short circuit between terminals.SOLUTION: The connector comprises a connector housing 1 made of a synthetic resin and a chain-like terminal T that a connection part 10 is selectively separated in a state where a plurality of terminals are linked like a chain via the connection part 10 and the whole part is housed in the connector housing 1. For obtaining a desired short circuit pattern, the connection part 10 of the chain-like terminal T is selectively separated. The separated connection part 10 is held by press fitting in a holding part 18 formed in the connector housing 1. Therefore, a situation where the separated connection part 10 makes contact with the terminal and consequently an unintentional short circuit between the terminals occurs is avoided.

Description

  The present invention relates to a connector.

  2. Description of the Related Art Conventionally, a type in which a plurality of terminal fittings are connected via a connecting portion (carrier) that can be cut is known. In Patent Document 1, a plurality of terminal fittings connected in such a chain shape are incorporated in a connector, and a desired connection pattern is obtained by selectively separating the coupling portion while being incorporated in the connector housing. A technique for obtaining the above is disclosed.

JP-A-9-213436

  However, in the above, since the connecting portion is disconnected in the housing of the connector, there is a problem that a short circuit may occur if the removed connecting portion is left in the housing.

  The present invention has been completed based on the above situation, and provides a connector capable of effectively avoiding a situation in which terminals are short-circuited by a connecting portion cut off from a chained terminal. With the goal.

  The connector of the present invention includes a connector housing made of synthetic resin, and a chained terminal in which a plurality of terminals are linked in a chained manner via a coupling portion, and the coupling portion is selectively disconnected in a state where the whole is incorporated in the connector housing The connector housing is formed with a holding portion for holding the cut connecting portion.

  According to the present invention, various short-circuit patterns can be set by selectively disconnecting the connecting portion from the plurality of terminals. In that case, since the separated connecting portion is not held and displaced by the holding portion of the connector housing, it is possible to avoid a situation where the terminals are inadvertently short-circuited by the separated connecting portion.

Front view of connector AA line sectional view of FIG. Plan sectional view showing a state where the connecting portion is cut off

First, a preferred embodiment in the present invention will be described.
While the terminal is formed with a tab portion that connects to the mating terminal, the connector housing is formed with a terminal support wall through which the tab portion penetrates in a press-fit state, and the portion of the terminal support wall that faces the connecting portion is the holding portion. The terminal support wall has a configuration in which a short-circuit prevention wall interposed between the disconnected connecting portion and the terminal connected by the connecting portion is formed.
In this way, if a short-circuit prevention wall is interposed between the connecting portion and the terminal, even if a situation occurs in which the holding portion is held loose by the holding portion and displaced, the connecting portion is erroneously A situation where the terminals are short-circuited can be avoided.

  The connecting portion may be formed with a protruding portion that is pierced and held by the holding portion, and the protruding portion may be formed in a wedge shape that is pointed toward the distal end side.

  According to such a configuration, when the protruding portion of the connecting portion pierces the holding portion, the wedge support action at the tip of the protruding portion causes the meat of the terminal support wall to be moved toward the tab portion side, thereby increasing the holding force for the tab portion. It is done.

It is good also as a structure which can press-fit the side edge part of a connection part in a short circuit prevention wall.
According to this structure, in addition to being held by the holding portion, the connecting portion is also crimped to the short-circuit prevention wall. Therefore, the holding power of the connecting portion itself is further enhanced.

<Example>
Next, an embodiment embodying the connector of the present invention will be described with reference to the drawings.
The connector (joint connector) of this embodiment has a connector housing 1 made of synthetic resin. As shown in FIG. 2, the connector housing 1 has first and second hood portions 2 and 3 that open in opposite directions, and both the hood portions 2 and 3 are partitioned by a terminal support wall 4. A plurality of terminals 5 are supported on the terminal support wall 4 by press-fitting. As shown in FIG. 1, six terminals 5 are arranged in the width direction and two stages in the height direction in both hood parts 2.3.

  Each terminal 5 in the present embodiment is a chained terminal T that is a set of two when assembled into the connector housing 1. In other words, the pair of terminals 5 are connected by the detachable connecting portion 10. The number of chains in the chain terminal T should not be limited.

  Each terminal 5 is formed of a metal flat plate material. First and second tab portions 6 and 7 are formed on both sides in the longitudinal direction, and can be connected to a mating terminal. The first tab portion 6 side is formed longer than the second tab portion 7, and the wide portion 8 projects between the tab portions 6 and 7 in a direction perpendicular to the longitudinal direction. A retaining tab 9 is formed near the wide portion 8 in the first tab portion 6.

  The connecting part 10 is connected to the back end part of the opposite edge of the both wide parts 8 in the chain terminal T via the thin part 11. The rear edge (lower edge in FIG. 2) of the connecting portion 10 is a pushing edge 12 for pushing with a cutting jig (not shown). Further, both side edges in the width direction of the connecting portion 10 are formed in a wedge shape so as to gradually increase in width toward the rear end side, thereby forming press-fit edges 13. In the connecting portion 10, a protruding portion 14 is formed protruding from the press-fit edge 13 through a step. The intrusion portion 14 has an arrowhead shape with a sharp tip, and is formed in a wedge shape that becomes wider as it goes to the rear end, like the press-in edge 13.

  In the terminal support wall 4, a mounting recess 15 for attaching each chained terminal T is formed in the back wall on the second hood portion 3 side. As shown in FIG. 1, each mounting recess 15 is formed so as to be horizontally long in the width direction, and as shown in FIG. Stopper surfaces 16 are formed in steps at both ends in the width direction of the front side portion of the mounting recess 15. When the chained terminals T are press-fitted into the respective mounting recesses 15, the both stopper surfaces 16 abut the leading edges of the wide portions 8 of the terminals 5 to stop the chained terminals T at the regular assembly position.

  A pair of terminal insertion holes 17 penetrating into the first hood portion 2 is provided in a portion of each mounting recess 15 adjacent to the inner side in the width direction behind the stopper surface 16. The insides of both terminal insertion holes 17 are large enough to allow the first tab portion 6 to be press-fitted.

  A holding part 18 for holding the connecting part 10 is formed in a recessed part at a part that is sandwiched between both terminal insertion holes 17 at the innermost part of each mounting recess 15. The holding portion 18 is configured such that the protruding portion 14 of the connecting portion 10 is substantially pushed to the root position in a state where the chain terminal T is supported by the terminal support wall 4. Further, as shown in FIG. 3, when the connecting portion 10 is disconnected from the chained terminal T, the entire connecting portion 10 is held in the connector housing 1 by the tip of the protruding portion 14 being stuck into the back wall of the holding portion 18. Is done.

  Both side walls in the width direction of the recessed portion constituting the holding portion 18 are short-circuit prevention walls 19. That is, the two short-circuit prevention walls 19 are located between the disconnected connecting portion 10 and both terminals 5, thereby avoiding a situation where the terminals 5 are inadvertently short-circuited by the connecting portion 10. In addition, an interval between the opposing short-circuit prevention walls 19 is set such that both press-fitting edges 13 of the separated connecting portion 10 can bite into the short-circuit prevention wall 19.

  Next, the function and effect of the present embodiment configured as described above will be described. When the chained terminals T are assembled into the connector housing 1, the chained terminals T are caused to enter the second hood portion from the first tab portion 6 side and the first tab portions 6 are inserted into the corresponding terminal insertion holes 17. Press fit to fit. And if the wide part 8 contact | abuts to the stopper surface 16, each terminal 5 will be inserted in the terminal insertion hole 17 to the regular depth. In this state, since the retaining claw 9 bites into the hole wall of the terminal insertion hole 17, the retaining of the terminal 5 is further strengthened together with the holding by press fitting.

  Next, the chain terminal T which should disconnect the connection part 10 based on the preset short circuit pattern is selected (in the case of a present Example, the chain terminal T located in the both ends of the width direction in FIG. 3). In the selected chained terminal T, the cutting edge (not shown) is brought into contact with the pushing edge 12 of the connecting portion 10 and pushed. Thereby, the connection part 10 which the thin part 11 was parted and cut | disconnected from both the terminals 5 advances the inside of the holding | maintenance part 18 with a press state, and the front-end | tip of the protrusion part 14 pierces the inner wall of the holding | maintenance part 18. In this state, the linking portion 10 is held in a state where it is prevented from being pulled out because it is caught in the inner wall of the holding portion 18 due to the twisted shape of the entry portion 14. Further, since the connecting portion 10 itself is press-fitted at the press-fitting edge 13 in addition to the press-fitting of the rushing portion 14, the holding force of the connecting portion 10 itself is also increased.

  Furthermore, since both the press-fit edges 13 and the protrusions 14 are both formed in a wedge shape, the thickness of the terminal support wall 4 is brought closer to the both terminals with the press-fitting. As a result, the pressure contact force against the terminal 5 is increased and the holding force is improved.

  Thus, according to the present embodiment, since the connecting portion 10 separated from the chained terminal T is stuck and held in the holding portion 18 of the connector housing 1, the connecting portion 10 moves and causes the terminals 5 to move together. It is possible to reliably avoid a situation where a short circuit is accidentally short-circuited.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) Although the chained terminal T is configured by connecting the two terminals 5 in the above embodiment, three or more terminals may be connected.
(2) In the above embodiment, the case where the connecting portion 10 is disconnected along the longitudinal direction of the terminal 5 has been shown, but it may be performed in the thickness direction.

  (3) In the above embodiment, the case where the connecting portion 10 is held by press fitting to the holding portion 18 has been shown. However, it is also possible to provide the connector housing with an elastic claw to elastically lock the connecting portion 10. It is.

DESCRIPTION OF SYMBOLS 1 ... Connector housing 4 ... Terminal support wall 5 ... Terminal 10 ... Connection part 13 ... Press-fit edge 14 ... Entry part 18 ... Holding part 19 ... Short-circuit prevention wall

Claims (4)

A connector housing made of synthetic resin;
A plurality of terminals are connected in a chain through the connecting part, and the connecting part is selectively disconnected in a state where the whole is incorporated in the connector housing,
The connector housing has a holding portion for holding the cut connecting portion. The terminal is formed with a tab portion connected to the mating terminal, while the connector housing is formed with a terminal support wall through which the tab portion penetrates in a press-fit state.
A portion of the terminal support wall that faces the connection portion is the holding portion, and is interposed between the connection portion separated from the terminal support wall and the terminal connected by the connection portion. The connector according to claim 1, wherein a short-circuit prevention wall is formed.   3. The connecting portion is formed with a protruding portion that is pierced and held by the holding portion, and the protruding portion is formed in a wedge shape that is pointed toward the distal end side. connector.   The connector according to claim 2 or 3, wherein a side edge portion of the connecting portion can be press-fitted into the short-circuit prevention wall.

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