JP6092708B2 - connector - Google Patents

Description

  The present invention relates to a connector provided with a terminal having an elastic piece.

  Conventionally, as a connector, a fitting detection member as a terminal having an elastic piece provided with a contact portion, a first housing that accommodates the fitting detection member, and a second housing that can be fitted into the first housing And a fitting detection contact as a mating terminal having a contacted portion that is accommodated in the second housing and is brought into contact with the contact portion by the urging force of the elastic piece in a properly fitted state between the first housing and the second housing. What was provided is known (for example, refer patent document 1).

  In this connector, the first housing and the second housing are fitted together, and the first housing and the second housing are properly fitted by contact between the contact portion of the fitting detection member and the contacted portion of the fitting detection contact. Can be detected.

  In the connector disclosed in Patent Document 1, a lock portion that is locked to a fitting protrusion as a locked portion provided in the second housing in a normal fitting state between the first housing and the second housing. The elastic fitting lever is provided on the side opposite to the biasing direction of the elastic piece so as to be swingable.

  In this elastic fitting lever, the base of the fitting detection member is fitted on the fixed end side, and the tip of the elastic piece of the fitting detection member abuts on the tip side while being urged by the urging force of the elastic piece. Has been.

JP-A-8-22873

  However, in the connector as in Patent Document 1, the lock portion is provided so as to be able to swing on the side opposite to the biasing direction of the elastic piece, and the terminal is placed on the lock portion while biasing the lock portion by the biasing force of the elastic piece. Since it is supported, when assembling the terminal to the first housing, the terminal may be placed on the lock part while displacing the elastic piece against the urging force of the lock part or the urging force of the elastic piece. Excessive deformation may occur in the piece, which may cause poor conduction with the mating terminal.

  Therefore, an object of the present invention is to provide a connector capable of preventing excessive deformation of the elastic piece in assembling the terminals and preventing poor conduction between the terminals and the mating terminal.

  According to a first aspect of the present invention, there is provided a terminal having an elastic piece provided with a contact portion, a first housing that accommodates the terminal, a second housing that can be fitted to the first housing, and the second housing. A connector including a mating terminal having a contacted portion that is accommodated and is brought into contact with the contact portion by an urging force of the elastic piece in a properly fitted state between the first housing and the second housing; The first housing is provided so as to be swingable in the biasing direction of the elastic piece of the terminal, supports the terminal, and is provided in the second housing in a properly fitted state between the first housing and the second housing. Due to the swinging of the lock part until the first housing and the second housing are in a properly fitted state, the lock part is engaged with the lock part and the elastic piece of the terminal is opposed to the first housing. The bullet A displacement part that contacts the piece and displaces the elastic piece against the urging force of the elastic piece, and the displacement part is provided so as to be able to bend in the urging direction of the elastic piece. Features.

  In this connector, the lock portion supporting the terminal is provided so as to be able to swing in the biasing direction of the elastic piece, and the elastic piece is displaced against the biasing force of the elastic piece by contacting the elastic piece by swinging the lock portion. Since the displacement portion to be moved is provided to face the elastic piece, there is no portion where the urging force of the elastic piece is input to the lock portion in a state where the terminal is supported by the lock portion.

  In addition, since the displacement portion provided to face the elastic piece of the terminal is provided so as to be able to bend in the biasing direction of the elastic piece, the displacement portion and the elastic piece are attached when the terminal is assembled to the first housing. Even if they interfere with each other, excessive deformation of the elastic piece can be prevented by bending the displacement portion.

  Therefore, in such a connector, excessive deformation of the elastic piece in assembling the terminals can be prevented, and poor conduction between the terminal and the mating terminal can be prevented.

  The invention according to claim 2 is the connector according to claim 1, wherein the displacement portion has a fulcrum portion that maximizes the displacement of the elastic piece of the terminal when the rocking portion is maximized. Is provided.

  In this connector, the displacing portion is provided with a fulcrum portion that maximizes the displacement of the elastic piece of the terminal when the rocking portion of the lock portion is maximized. In the half-fitted state with the second housing, the displacement of the elastic piece is maximized and the contact part of the terminal is separated from the contacted part of the mating terminal, so that the contact part and the contacted part do not contact each other, It is possible to prevent conduction between the terminal and the counterpart terminal.

  The invention according to claim 3 is the connector according to claim 1 or 2, wherein the biasing force of the displacement portion is set to be weaker than the biasing force of the elastic piece, and the second housing has A rib is extended toward the downstream side in the fitting direction with respect to the first housing, supporting the contacted portion, and the rib is formed on the displacement portion when the first housing and the second housing are fitted. It is inserted between bending directions, The bending of the said displacement part by contact | abutting with the elastic piece of the said terminal is controlled, It is characterized by the above-mentioned.

  In this connector, since the urging force of the displacement portion is set to be weaker than the urging force of the elastic piece, the elastic piece is displaced even when the displacement portion and the elastic piece interfere when the terminal is assembled to the first housing. Therefore, the displacement portion can be bent without causing deformation of the elastic piece in assembling the terminals.

  On the other hand, when the first housing and the second housing are fitted, the rib provided on the second housing is inserted between the bending directions of the displacement portion, and the displacement portion is bent by the contact with the elastic piece of the terminal. Since it regulates, a displacement part can displace an elastic piece according to the fitting state of the 1st housing and the 2nd housing.

  According to the present invention, there is an effect that it is possible to provide a connector capable of preventing excessive deformation of the elastic piece in assembling the terminals and preventing poor conduction between the terminal and the mating terminal.

1 is a perspective view of a connector according to an embodiment of the present invention. (A) is sectional drawing of the 1st housing of the connector which concerns on embodiment of this invention. (B) is the principal part enlarged view of Fig.2 (a). It is sectional drawing of the 2nd housing of the connector which concerns on embodiment of this invention. It is sectional drawing in the middle of fitting with the 1st housing and 2nd housing of the connector which concerns on embodiment of this invention. It is sectional drawing in the completion of fitting with the 1st housing and 2nd housing of the connector which concerns on embodiment of this invention. It is sectional drawing when a terminal is assembled | attached to the 1st housing of the connector which concerns on embodiment of this invention. It is sectional drawing when a displacement part bends, when a terminal is assembled | attached to the 1st housing of the connector which concerns 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 this embodiment includes a terminal 7 having an elastic piece 5 provided with a contact portion 3, a first housing 9 that accommodates the terminal 7, and a second housing that can be fitted into the first housing 9. A mating terminal having a housing 11 and a contacted portion 13 which is accommodated in the second housing 11 and is brought into contact with the contact portion 3 by the urging force of the elastic piece 5 in a properly fitted state between the first housing 9 and the second housing 11. 15.

  The first housing 9 is provided so as to be swingable in the urging direction of the elastic piece 5 of the terminal 7, supports the terminal 7, and is in a properly fitted state between the first housing 9 and the second housing 11. Until the first housing 9 and the second housing 11 which are provided opposite to the elastic piece 5 of the terminal 7 are engaged with the locked portion 17 provided in And a displacement portion 21 that abuts against the elastic piece 5 by swinging the lock portion 19 and displaces the elastic piece 5 against the urging force of the elastic piece 5, and the displacement portion 21 urges the elastic piece 5. It is provided so that it can bend in the direction.

  The displacement portion 21 is provided with a fulcrum portion 23 that maximizes the displacement of the elastic piece 5 of the terminal 7 when the rocking portion 19 swings to the maximum.

  Further, the urging force of the displacement portion 21 is set to be weaker than the urging force of the elastic piece 5, and the second housing 11 supports the contacted portion 13 of the mating terminal 15 and is downstream in the fitting direction to the first housing 9. A rib 25 extends toward the end of the terminal 7, and the rib 25 is inserted between the bending direction of the displacement portion 21 when the first housing 9 and the second housing 11 are fitted with each other. The bending of the displacement portion 21 due to contact is regulated.

  In the connector 1 according to the present embodiment, the first housing 9 and the second housing 11 are fitted, and the contact between the contact portion 3 and the contacted portion 13 causes the first housing 9 and the second housing 11 to contact each other. It is a fitting detection connector which can detect a regular fitting state.

  As shown in FIGS. 1 to 7, the terminal 7 is provided with the elastic piece 5 and the contact portion 3 with respect to the base portion 27 by punching and bending a thin plate-like conductive material. The terminal 7 is preferably a short-circuit terminal that connects two conductors.

  The elastic piece 5 is formed as one member continuous with the base 27 by bending one end side of the base 27, and is provided so as to be elastically deformable with a predetermined urging force. The elastic piece 5 is provided so as to be a pair of elastic pieces 5 and 5 with respect to the base portion 27, and contact portions 3 and 3 are provided at respective tip portions.

  The contact portion 3 is bent and formed in a semicircular shape at the tip ends of the pair of elastic pieces 5 and 5. The contact portion 3 is brought into contact with the contacted portion 13 of the mating terminal 15 accommodated in the second housing 11 by the urging force of the elastic piece 5 to electrically connect the terminal 7 and the mating terminal 15.

  In such a terminal 7, the base portion 27 is inserted into the insertion groove 29 provided in the lock portion 19 of the first housing 9 and supported by the lock portion 19, and the elastic piece 5 and the contact portion 3 are inside the first housing 9. It is accommodated and arranged in the accommodation chamber 31.

  The first housing 9 is made of an insulating material such as synthetic resin, is formed in a casing shape, and includes a storage chamber 31 and a lock portion 19. The accommodation chamber 31 is provided at the center in the width direction on the upper side in the height direction inside the first housing 9, and the elastic piece 5 of the terminal 7 and the contact portion 3 are accommodated and disposed. Further, an opening 33 into which the rib 25 of the second housing 11 can be inserted is provided in the wall portion located on the proximal end side of the lock portion 19 of the storage chamber 31. A lock portion 19 is provided above the storage chamber 31.

  A plurality of terminals in which a plurality of female terminals 37 connected to the ends of the electric wires 35 connected to a power source, equipment, and the like are accommodated and disposed on the lower side in the height direction and both sides in the width direction of the accommodation chamber 31. A housing part 39 is provided. The plurality of female terminals 37 accommodated in the plurality of terminal accommodating portions 39 are prevented from coming off by engaging with the locking lance 41, the double locking member 43 inserted into the terminal accommodating portion 39, or the like. .

  The lock portion 19 is swingably provided above the storage chamber 31 with the opening 33 side of the storage chamber 31 as a base end, and includes an insertion groove 29 and a locking projection 45. The insertion groove 29 is provided on the accommodation chamber 31 side, which is the lower surface of the lock portion 19, and the base portion 27 of the terminal 7 is inserted to support the terminal 7. Thus, by inserting the base 27 of the terminal 7 into the insertion groove 29 and supporting the terminal 7, the arrangement position of the terminal 7 is changed by the swinging of the lock portion 19, and the elastic piece 5 of the terminal 7 is directly connected. The lock part 19 is not displaced. For this reason, the lock portion 19 does not have a portion to which the urging force of the elastic piece 5 of the terminal 7 is input in a state where the terminal 7 is supported by the lock portion 19.

  The locking convex portion 45 is provided at the center of the upper surface of the lock portion 19, and the front side in the fitting direction with the second housing 11 is an inclined surface, and the rear side in the fitting direction is a vertical surface. It is a locking surface. When the first housing 9 and the second housing 11 are fitted, the locking projection 45 swings the lock portion 19 downward by the inclined surface coming into contact with the locked portion 17 of the second housing 11. When the first housing 9 and the second housing 11 are properly fitted to each other, the locking surface is locked to the locked portion 17 by restoring the locking portion 19 upward.

  An operation unit 47 is provided on the distal end side of the lock unit 19. When the operation unit 47 is pressed downward, the lock unit 19 is swung downward, and the lock unit 19 and the locked unit are moved. The engagement with the first housing 9 and the second housing 11 can be released.

  The second housing 11 is made of an insulating material such as synthetic resin, is formed in a housing shape, and includes a hood portion 49 and ribs 25. The hood portion 49 is opened on the front side in the fitting direction with the first housing 9, and three hood portions 49 are provided in the width direction of the second housing 11, and the first housing 9 can be fitted to each hood portion 49. It has become. Further, at the opening end of the hood portion 49, a locked portion 17 to which the locking convex portion 45 of the locking portion 19 of the first housing 9 is brought into contact and locked is extended downward. A rib 25 is provided in the hood portion 49.

  In the hood part 49, the rib 25 extends from the wall part in which the mating terminal 15 is inserted toward the downstream side in the fitting direction to the first housing 9. The rib 25 supports the contacted portion 13 of the mating terminal 15 disposed in the hood portion 49, and engages the first housing 9 and the second housing 11, so that the opening 25 of the first housing 9 can be fitted. It is inserted into the insertion part 55.

  The hood portion 49 accommodates and arranges connection portions of a plurality of L-shaped male terminals 53 connected to the substrate 51. The plurality of male terminals 53 are electrically connected to the plurality of female terminals 37 accommodated in the first housing 9 when the first housing 9 and the second housing 11 are in a properly fitted state.

  The mating terminal 15 is made of a conductive material, is formed in an L shape, has one end connected to the substrate 51, and the other end inserted into the hood portion 49 to be a contacted portion 13 supported on the rib 25. ing. The mating terminal 15 is composed of a pair of mating terminals 15 and 15, and is connected to a conduction circuit formed on the substrate 51. When the contact parts 3 and 3 of the terminal 7 come into contact with the contacted parts 13 and 13, respectively. A pair of mating terminals 15 and 15 are electrically connected via the terminal 7.

  The pair of mating terminals 15 and 15 are brought into contact with the contact portions 3 and 3 by the urging force of the elastic pieces 5 and 5 of the terminal 7 when the first housing 9 and the second housing 11 are properly fitted. Is conducted. The fitting state between the first housing 9 and the second housing 11 can be detected based on the presence or absence of conduction between the pair of mating terminals 15 and 15. Such an elastic piece 5 of the terminal 7 is displaced by a displacement portion 21 provided in the first housing 9.

  The displacement portion 21 is provided in the housing chamber 31 of the first housing 9 so as to face the lock portion 19 and can be bent in the biasing direction of the elastic piece 5 of the terminal 7, specifically below the insertion portion 55. It is provided so as to be able to bend toward the bottom wall 57 side located at the position. The displacement portion 21 is set such that the upward biasing force from the insertion portion 55 is weaker than the biasing force of the elastic piece 5 of the terminal 7.

  Therefore, when the terminal 7 is assembled to the first housing 9, even if the elastic piece 5 and the displacement portion 21 interfere with each other as shown in FIG. 6, the elastic piece 5 is displaced as shown in FIG. Without displacement, the displacement portion 21 bends downward, and excessive deformation of the elastic piece 5 as shown by the phantom line in FIG. 7 can be prevented. Such a displacement portion 21 includes an insertion portion 55 and a fulcrum portion 23.

  The insertion part 55 is provided between the displacement part 21 and the bottom wall part 57 located in the direction in which the displacement part 21 bends. When the first housing 9 and the second housing 11 are fitted, the rib 25 of the second housing 11 inserted from the opening 33 of the first housing 9 is inserted into the insertion portion 55. By inserting the rib 25 into the insertion portion 55 in this way, the downward bending of the displacement portion 21 is restricted, and the displacement portion 21 is brought into contact with the elastic piece 5 of the terminal 7 so that the displacement portion 21 has the elastic piece 5. The elastic piece 5 can be displaced against the urging force.

  The fulcrum part 23 protrudes upward from the distal end side of the displacement part 21. The fulcrum portion 23 is formed when the lock portion 19 swings to the maximum, more specifically, when the locking projection 45 of the lock portion 19 is brought into contact with the top surface of the locked portion 17. The elastic pieces 5 and 5 are brought into contact with each other to maximize the displacement of the elastic pieces 5 and 5.

  Thus, by maximizing the displacement of the elastic pieces 5 and 5 of the terminal 7 by the fulcrum 23, when the rocking of the lock portion 19 is maximized, that is, the first housing 9 and the second housing 11 are halfway. When it is a fitting state, it can prevent reliably that the contact parts 3 and 3 and the to-be-contacted parts 13 and 13 of the other party terminals 15 and 15 contact.

  In the connector 1 thus configured, first, the terminal 7 is inserted from the opening of the accommodation chamber 31 of the first housing 9, the base portion 27 of the terminal 7 is inserted into the insertion groove 29, and the terminal 7 is inserted into the accommodation chamber 31. Deploy. At this time, the elastic piece 5 of the terminal 7 comes into contact with the displacement portion 21, but the displacement portion 21 bends so that the displacement of the elastic piece 5 can be suppressed and the terminal 7 can be assembled.

  Next, the second housing 11 and the first housing 9 in which the respective members are accommodated are fitted. At this time, the rib 25 of the second housing 11 is inserted from the opening 33 of the first housing 9, the rib 25 is inserted into the insertion portion 55 provided between the bending directions of the displacement portion 21, and the displacement portion 21 is bent. Be regulated.

  When the fitting of the first housing 9 and the second housing 11 is started, the locking projection 45 of the lock portion 19 comes into contact with the locked portion 17 and the lock portion 19 starts swinging. The position of the terminal 7 is also changed by the movement. Due to the position variation of the terminal 7, the elastic piece 5 comes into contact with the displacement portion 21 and the displacement of the elastic piece 5 is started.

  Next, when the locking projection 45 of the lock portion 19 is brought into contact with the top surface of the locked portion 17 and the rocking of the lock portion 19 is maximized, the elastic piece 5 of the terminal 7 is the fulcrum portion of the displacement portion 21. 23, the displacement of the elastic piece 5 is maximized. As a result, the contact portion 3 of the terminal 7 and the contacted portion 13 of the mating terminal 15 can be separated from each other, and conduction between the terminal 7 and the mating terminal 15 is prevented and the first housing 9 and the second housing 11 are half-fitted. The state can be detected.

  And when the 1st housing 9 and the 2nd housing 11 will be in a regular fitting state, while the latching convex part 45 of the lock part 19 is latched by the to-be-locked part 17, the elastic piece 5 of the terminal 7 and The contact with the displacement portion 21 is released, and the contact portion 3 is brought into contact with the contacted portion 13 of the mating terminal 15 by the biasing force of the elastic piece 5. By this contact, it is possible to detect that the pair of mating terminals 15 and 15 are conducted through the terminal 7 and the first housing 9 and the second housing 11 are in the properly fitted state.

  In such a connector 1, the lock portion 19 that supports the terminal 7 is provided so as to be swingable in the urging direction of the elastic piece 5, and comes into contact with the elastic piece 5 by the swinging of the lock portion 19. Since the displacement portion 21 that displaces the elastic piece 5 against the force is provided facing the elastic piece 5, the elastic piece 5 is attached to the lock portion 19 in a state where the terminal 7 is supported by the lock portion 19. There is no part where power is input.

  Moreover, since the displacement part 21 provided facing the elastic piece 5 of the terminal 7 is provided so that it can bend in the urging | biasing direction of the elastic piece 5, at the time of the assembly | attachment to the 1st housing 9 of the terminal 7, Even if the displacement part 21 and the elastic piece 5 interfere with each other, the deformation of the elastic piece 5 can be prevented by bending the displacement part 21.

  Therefore, in such a connector 1, excessive deformation of the elastic piece 5 in assembling the terminal 7 can be prevented, and poor conduction between the terminal 7 and the mating terminal 15 can be prevented.

  Further, since the displacement portion 21 is provided with a fulcrum portion 23 that maximizes the displacement of the elastic piece 5 of the terminal 7 when the rocking portion 19 swings to the maximum, the rocking portion 19 does not swing. In the half-fitted state of the first housing 9 and the second housing 11 that are maximum, the displacement of the elastic piece 5 is maximum, and the contact portion 3 of the terminal 7 is separated from the contacted portion 13 of the mating terminal 15, The part 3 and the contacted part 13 do not come into contact with each other, and the terminal 7 and the mating terminal 15 can be prevented from conducting.

  Further, since the urging force of the displacement portion 21 is set to be weaker than the urging force of the elastic piece 5, even if the displacement portion 21 and the elastic piece 5 interfere when the terminal 7 is assembled to the first housing 9. And the displacement part 21 can be bent without displacing the elastic piece 5, and the deformation | transformation of the elastic piece 5 in the assembly | attachment of the terminal 7 can be prevented reliably.

  On the other hand, when the first housing 9 and the second housing 11 are fitted, the rib 25 provided on the second housing 11 is inserted between the bending directions of the displacement portion 21, and the contact with the elastic piece 5 of the terminal 7. Since the bending of the displacement portion 21 due to contact is restricted, the displacement portion 21 can displace the elastic piece 5 according to the fitting state of the first housing 9 and the second housing 11.

  In the connector according to the embodiment of the present invention, the fulcrum portion protrudes from the opposing surface that faces the elastic piece of the displacement portion. However, the present invention is not limited to this, for example, the facing portion that faces the elastic piece of the displacement portion. The surface may be formed in a circular shape, and the fulcrum portion may be set at a position where the displacement of the elastic piece is maximized on the circular opposing surface.

DESCRIPTION OF SYMBOLS 1 ... Connector 3 ... Contact part 5 ... Elastic piece 7 ... Terminal 9 ... 1st housing 11 ... 2nd housing 13 ... Contacted part 15 ... Opposite terminal 17 ... Locked part 19 ... Lock part 21 ... Displacement part 23 ... Supporting point part 25 ... Ribs

Claims (3)

A terminal having an elastic piece provided with a contact portion; a first housing that accommodates the terminal; a second housing that can be fitted into the first housing; and the first housing and the housing that are accommodated in the second housing. A connector including a mating terminal having a contacted portion that is brought into contact with the contact portion by a biasing force of the elastic piece in a normal fitting state with the second housing;
The first housing is provided to be swingable in the biasing direction of the elastic piece of the terminal, supports the terminal, and is provided to the second housing in a properly fitted state between the first housing and the second housing. The lock portion that is locked to the locked portion and the elastic piece of the terminal are provided so as to face each other until the first housing and the second housing are in a properly fitted state. A displacement part that contacts the elastic piece by movement and displaces the elastic piece against the urging force of the elastic piece;
The said displacement part is provided so that it can bend in the urging | biasing direction of the said elastic piece, The connector characterized by the above-mentioned. The connector according to claim 1,
The connector according to claim 1, wherein the displacement portion is provided with a fulcrum portion that maximizes the displacement of the elastic piece of the terminal when the rocking portion of the lock portion is maximized. The connector according to claim 1 or 2,
The biasing force of the displacement part is set to be weaker than the biasing force of the elastic piece,
In the second housing, a rib is extended toward the downstream side in the fitting direction to the first housing, supporting the contacted portion of the mating terminal,
The rib is inserted between the bending direction of the displacement portion when the first housing and the second housing are fitted, and restricts the bending of the displacement portion due to contact with the elastic piece of the terminal. Features a connector.

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