JP6085515B2 - 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 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, since the terminal is supported by the lock portion while urging the lock portion by the urging force of the elastic piece, the elastic piece is displaced against the urging force of the elastic piece. However, there is a possibility that the terminal is arranged in the lock portion, and the elastic piece is excessively deformed, and there is a possibility that poor conduction with the counterpart terminal occurs.

  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; In one housing, a lock portion that supports the terminal and is engaged with a locked portion provided in the second housing in a properly fitted state between the first housing and the second housing is provided to be swingable. The second housing supports a contacted portion of the mating terminal, and a rib extends toward the downstream side in the fitting direction to the first housing. The rib includes the first housing and the Second how Until the first and second housings are slid with the contact portion of the terminal to displace the elastic piece against the urging force of the elastic piece. Is provided with a displacement portion that brings the contact portion into contact with the contacted portion of the mating terminal by the urging force of the elastic piece when the fitting portion is in a normal fitting state, and the displacement portion is fitted into the first housing. A sliding portion that slides with the contact portion of the terminal, and an elastic piece of the terminal when the lock portion swings to the maximum. And a fulcrum portion that maximizes the displacement .

  In this connector, since the displacement portion for displacing the elastic piece of the terminal is provided on the rib provided on the second housing, the lock portion provided on the first housing in a state where the terminal is assembled to the first housing. It is not necessary to provide a portion for inputting the biasing force of the elastic piece.

  For this reason, when assembling the terminal to the first housing, it is not necessary to displace the elastic piece of the terminal, and excessive deformation of the elastic piece in assembling the terminal can be prevented.

  On the other hand, when the first housing and the second housing are fitted together, the elastic piece of the terminal can be displaced by the displacement portion provided on the rib of the second housing, and the contact portion of the terminal and the cover of the mating terminal are covered. The contact portion can be brought into contact or non-contact with the urging force of the elastic piece.

  Further, the displacement portion slides with the contact portion of the terminal until the first housing and the second housing are in the normal fitting state, and displaces the elastic piece against the urging force of the elastic piece. Dust and the like adhering to the contact portion of the terminal can be removed, and poor conduction due to the presence of impurities between the contact portion and the contacted portion of the mating terminal can be prevented.

  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.

In this connector, since the displacement portion has a fulcrum portion that maximizes the displacement of the elastic piece of the terminal when the swing of the lock portion is maximized, the first housing and the second housing where the swing of the lock portion is maximized. In the half-fitted state with the housing, the displacement of the elastic piece is maximized and the contact portion is separated from the contacted portion, so that the contact portion and the contacted portion do not contact each other, and the terminal and the mating terminal are conducted. This can be prevented.
Invention of Claim 2 is the connector of Claim 1, Comprising: The said fulcrum part is protrudingly provided in the position higher than the said sliding part, and the inclination used as an upward inclination with a larger inclination angle than the said sliding part It has a surface.

  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. It is sectional drawing of the 1st housing of the connector which concerns on embodiment of this invention. (A) is sectional drawing of the 2nd housing of the connector which concerns on embodiment of this invention. (B) is a principal part enlarged view of Fig.3 (a). (A) is sectional drawing in the fitting start of the 1st housing and 2nd housing of the connector which concerns on embodiment of this invention. (B) is the principal part enlarged view of Fig.4 (a). 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.

  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 has a lock portion 19 that supports the terminal 7 and is engaged with a locked portion 17 provided in the second housing 11 in a properly fitted state between the first housing 9 and the second housing 11. Is provided to be swingable.

  Further, a rib 21 is extended from the second housing 11 toward the downstream side in the fitting direction to the first housing 9 to support the contacted portion 13 of the mating terminal 15.

  The rib 21 is elastic against the urging force of the elastic piece 5 by sliding with the contact portion 3 of the terminal 7 until the first housing 9 and the second housing 11 are properly fitted. A displacement portion that displaces the piece 5 and brings the contact portion 3 into contact with the contacted portion 13 of the mating terminal 15 by the urging force of the elastic piece 5 when the first housing 9 and the second housing 11 are properly fitted. 23 is provided.

  Further, the displacement portion 23 is formed of an inclined surface that is inclined upward from the downstream side in the fitting direction to the first housing 9, a sliding portion 25 that slides on the contact portion 3 of the terminal 7, and a lock portion. And a fulcrum portion 27 for maximizing the displacement of the elastic piece 5 of the terminal 7 when the swing of 19 is maximized.

  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 29 by punching and bending a thin plate-like conductive material.

  The elastic piece 5 is formed as one member continuous with the base 29 by bending one end side of the base 29, and is provided so as to be elastically deformable with a predetermined urging force. This elastic piece 5 is provided so as to be a pair of elastic pieces 5, 5 with respect to the base portion 29, and contact portions 3, 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 29 is inserted into the insertion groove 31 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. Is accommodated in the storage chamber 33.

  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 33 and a lock portion 19. The accommodation chamber 33 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. In addition, an opening 35 into which the rib 21 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 33. A lock portion 19 is provided above the storage chamber 33.

  A plurality of terminals in which a plurality of female terminals 39 connected to the ends of the electric wires 37 connected to a power source, equipment, and the like are accommodated and arranged on the lower side in the height direction and both sides in the width direction of the accommodation chamber 33. An accommodating portion 41 is provided. The plurality of female terminals 39 accommodated in the plurality of terminal accommodating portions 41 are prevented from coming off by engaging with the locking lance 43, the double locking member 45 inserted into the terminal accommodating portion 41, or the like. .

  The lock portion 19 is swingably provided above the storage chamber 33 with the opening 35 side of the storage chamber 33 as a base end, and includes an insertion groove 31 and a locking projection 47. The insertion groove 31 is provided on the housing chamber 33 side, which is the lower surface of the lock portion 19, and the base portion 29 of the terminal 7 is inserted to support the terminal 7. Thus, by inserting the base 29 of the terminal 7 into the insertion groove 31 and supporting the terminal 7, it is not necessary to deform the elastic piece 5 when the terminal 7 is assembled.

  The locking convex portion 47 is provided at the center of the upper surface of the lock portion 19, 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 47 swings the lock portion 19 downward by the inclined surface abutting on 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 49 is provided on the distal end side of the lock unit 19. When the operation unit 49 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 51 and ribs 21. The front part of the hood part 51 in the fitting direction with the first housing 9 is opened, and three hood parts 51 are provided in the width direction of the second housing 11, and the first housing 9 can be fitted to each hood part 51. It has become. Further, at the opening end of the hood portion 51, a locked portion 17 to which the locking convex portion 47 of the locking portion 19 of the first housing 9 is brought into contact and locked is extended downward. A rib 21 is provided in the hood portion 51.

  The rib 21 extends in the hood portion 51 from the wall portion into which the mating terminal 15 is inserted toward the downstream side in the fitting direction to the first housing 9. The rib 21 supports the contacted portion 13 of the mating terminal 15 disposed in the hood portion 51, and engages the first housing 9 and the second housing 11, so that the opening 21 of the first housing 9 can be fitted. It is inserted into the storage chamber 33.

  The hood portion 51 accommodates and arranges connection portions of a plurality of L-shaped male terminals 55 connected to the substrate 53. The plurality of male terminals 55 are electrically connected to the plurality of female terminals 39 accommodated in the first housing 9 when the first housing 9 and the second housing 11 are properly fitted.

  The mating terminal 15 is made of a conductive material, is formed in an L shape, has one end connected to the substrate 53, and the other end inserted into the hood 51 to be a contacted portion 13 supported on the rib 21. 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 53. 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 23 provided on the rib 21.

  The displacement part 23 includes a sliding part 25 and a fulcrum part 27. The sliding portions 25 are provided at positions corresponding to the contacted portions 13 and 13 of the mating terminals 15 and 15, respectively, and the second housing 11 is fitted in the first housing 9 from the downstream side to the upstream side (the hood portion 51. The inclined surface is inclined upward from the opening side to the inner side.

  The sliding portions 25, 25 are the lock portions until the first housing 9 and the second housing 11 are in a properly fitted state until the first housing 9 and the second housing 11 start fitting. Until 19 and the locked portion 17 begin to interfere with each other, the elastic pieces 5 and 5 are displaced against the urging force of the elastic pieces 5 and 5 by sliding with the contact portions 3 and 3 of the terminal 7.

  At this time, the sliding portions 25 and 25 slide against the contact portions 3 and 3 while displacing the elastic pieces 5 and 5 against the urging force of the elastic pieces 5 and 5. The removed dust can be removed, and impurities can be prevented from intervening between the contact portions 3 and 3 and the contacted portions 13 and 13 of the mating terminals 15 and 15.

  The fulcrum part 27 is provided between the sliding parts 25, 25 and has an inclined surface that protrudes at a higher position than the sliding parts 25, 25 and has an upward inclination with a larger inclination angle than the sliding parts 25, 25. . The fulcrum portion 27 of the terminal 7 is provided when the swing of the lock portion 19 is maximized, specifically, when the locking convex portion 47 of the lock portion 19 is brought into contact with the top surface of the locked portion 17. Abutting portions (not shown) provided so as to connect the elastic pieces 5 and 5 are brought into contact with each other to maximize the displacement of the elastic pieces 5 and 5.

  In this way, by maximizing the displacement of the elastic pieces 5 and 5 of the terminal 7 by the fulcrum portion 27, when the rocking portion 19 swings to the maximum, 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.

  Thus, by providing the displacement part 23 which displaces the elastic piece 5 of the terminal 7 in the 2nd housing 11 side, as shown in FIG. 7, the part which interferes with the elastic piece 5 in the storage chamber 33 of the 1st housing 9 It is possible to prevent the elastic piece 5 from being excessively deformed when the terminal 7 is assembled to the first housing 9.

  In the connector 1 thus configured, first, the terminal 7 is inserted from the opening of the accommodation chamber 33 of the first housing 9, the base portion 29 of the terminal 7 is inserted into the insertion groove 31, and the terminal 7 is placed in the accommodation chamber 33. Deploy.

  Next, the second housing 11 and the first housing 9 in which the respective members are accommodated are fitted. At the start of the fitting, the locking convex portion 47 of the lock portion 19 comes into contact with the locked portion 17 and the lock portion 19 starts swinging, and the contact portion 3 of the terminal 7 is the sliding portion 25 of the displacement portion 23. And start sliding.

  Next, when the locking projection 47 of the lock part 19 is brought into contact with the top surface of the locked part 17 and the rocking of the lock part 19 is maximized, it is provided between the elastic pieces 5 and 5 of the terminal 7. The contact portion rides on the fulcrum portion 27 of the displacement portion 23, and the displacement of the elastic pieces 5 and 5 is maximized.

  And when the 1st housing 9 and the 2nd housing 11 will be in a regular fitting state, while the latching convex part 47 of the lock part 19 is latched by the to-be-locked part 17, the contact part of the terminal 7 and The contact of the displacement portion 23 with the fulcrum portion 27 is released, and the contact portion 3 is brought into contact with the contacted portion 13 of the mating terminal 15 by the urging 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, since the displacement portion 23 for displacing the elastic piece 5 of the terminal 7 is provided on the rib 21 provided on the second housing 11, the terminal 7 is assembled to the first housing 9. It is not necessary to provide a portion for inputting the urging force of the elastic piece 5 to the lock portion 19 provided in the first housing 9.

  For this reason, when the terminal 7 is assembled to the first housing 9, it is not necessary to displace the elastic piece 5 of the terminal 7, and excessive deformation of the elastic piece 5 in assembling the terminal 7 can be prevented.

  On the other hand, when fitting the first housing 9 and the second housing 11, the elastic piece 5 of the terminal 7 can be displaced by the displacement portion 23 provided on the rib 21 of the second housing 11. The contact portion 3 and the contacted portion 13 of the mating terminal 15 can be brought into contact or non-contact by the urging force of the elastic piece 5, and the fitting state between the first housing 9 and the second housing 11 is detected. be able to.

  In addition, the displacement portion 23 slides against the contact portion 3 of the terminal 7 until the first housing 9 and the second housing 11 are in the normal fitting state, and is elastic against the urging force of the elastic piece 5. Since the piece 5 is displaced, dust or the like attached to the contact portion 3 of the terminal 7 can be removed, and conduction failure due to the presence of impurities between the contact portion 3 and the contacted portion 13 of the mating terminal 15 can be prevented. Can do.

  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.

  Moreover, since the displacement part 23 has the fulcrum part 27 which makes the displacement of the elastic piece 5 of the terminal 7 the maximum when the rocking | fluctuation of the locking part 19 becomes the maximum, the rocking | fluctuation of the locking part 19 becomes the largest. In a half-fitted state between the first housing 9 and the second housing 11, the displacement of the elastic piece 5 is maximized so that the contact portion 3 is separated from the contacted portion 13, and the contact portion 3 and the contacted portion 13 come into contact with each other. It is possible to prevent the terminal 7 and the mating terminal 15 from conducting. For this reason, the fitting state of the 1st housing 9 and the 2nd housing 11 can be detected reliably.

  In the connector according to the embodiment of the present invention, the displacement part has the sliding part and the fulcrum part. If a similar function can be obtained, the fulcrum part need not be provided.

  In this case, the configuration of the displacement portion can be simplified, and it is not necessary to provide a contact portion of the terminal that contacts the fulcrum portion, and the configuration of the terminal can be simplified.

DESCRIPTION OF SYMBOLS 1 ... Connector 3 ... Contact part 5 ... Elastic piece 7 ... Terminal 9 ... 1st housing 11 ... 2nd housing 13 ... Contacted part 15 ... Counterpart terminal 17 ... Locked part 19 ... Lock part 21 ... Rib 23 ... Displacement part 25 ... sliding part 27 ... fulcrum part

Claims (2)

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;
In the first housing, a lock portion that supports the terminal and is engaged with a locked portion provided in the second housing in a properly fitted state between the first housing and the second housing is swingable. Provided in
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,
On the rib, the elastic piece is slid against the contact portion of the terminal until the first housing and the second housing are properly fitted, and resists the urging force of the elastic piece. Displacement is provided that causes the contact portion to contact the contacted portion of the mating terminal by the biasing force of the elastic piece when the first housing and the second housing are in a properly fitted state .
The displacement portion includes an inclined surface that is inclined upward from the downstream side in the fitting direction to the first housing, and a sliding portion that slides on the contact portion of the terminal, and swinging of the lock portion And a fulcrum portion that maximizes the displacement of the elastic piece of the terminal when the maximum is reached . The connector according to claim 1,
The connector is characterized in that the fulcrum part has an inclined surface that protrudes at a higher position than the sliding part and has an upward inclination with a larger inclination angle than the sliding part .

Images