JP5336679B1 - connector - Google Patents

Abstract

Provided is a connector in which a movable housing does not rotate around a contact point between a terminal and a connection object even when the connection object is displaced in a direction parallel to a substrate.
A movable member that engages a movable housing that is movable with respect to the fixed housing 10 movably only in a direction parallel to the substrate 1 (front-rear direction and width direction), and the movable member 20 Since the movable housing 30 is movably engaged only in the direction (vertical direction) orthogonal to the board 1, the terminal 40 and the counterpart terminal are moved when the mating connector 2 moves in a direction parallel to the board 1. 3, the movable member 20 can be translated along the substrate 1 without rotating with respect to the counterpart terminal 3. Thereby, the terminal 40 and the counterpart terminal 3 do not slide (turn) at the contact points.
[Selection] Figure 1

Description

  The present invention relates to a connector that is mounted on a circuit board of various electrical devices, for example, and connected to a counterpart terminal.

  Conventionally, as this type of connector, there are a fixed housing fixed to a substrate, a movable housing provided to be movable with respect to the fixed housing, one end side being held by the movable housing, and the other end side being a fixed housing. A plurality of terminals held on the movable housing, wherein a connection object is connected to one end side of the terminals held on the movable housing, and movement of the movable housing relative to the fixed housing is allowed by elastic deformation of the terminals. Is known (see, for example, Patent Document 1).

JP 2007-18785 A

  However, in the connector, since the movable housing that can move in the front-rear direction, the width direction, and the vertical direction with respect to the fixed housing is supported only by the elastically deformable terminals, the connection object connected to the movable housing is a substrate. When a displacement occurs in a direction parallel to the front (front-rear direction or width direction), a reaction force in the same direction is generated in the movable housing, and a rotational moment is generated around the contact point between the terminal and the connection object. For this reason, when the movable housing moves in a direction parallel to the substrate with respect to the fixed housing, the movable housing moves while rotating around the contact point between the terminal and the connection object without moving in parallel along the substrate. However, there is a problem that the terminal and the connection object may slide at the contact points to cause a contact failure.

  The present invention has been made in view of the above problems, and the object of the present invention is to provide a movable housing between the terminal and the connection object even when the connection object is displaced in a direction parallel to the substrate. An object of the present invention is to provide a connector that does not rotate around a contact.

  In order to achieve the above object, the present invention provides a fixed housing fixed to a substrate, a movable housing provided movably with respect to the fixed housing, one end side held by the movable housing, and the other end side A connector having a terminal held by the fixed housing, wherein an object to be connected is connected to one end of the terminal held by the movable housing, and movement of the movable housing relative to the fixed housing is allowed by elastic deformation of the terminal. The movable housing includes a movable member that is movably engaged only in a direction parallel to the substrate, and that the movable housing is movably engaged only in a direction orthogonal to the substrate.

  Thereby, the displacement of the connection object in the direction parallel to the substrate is absorbed by the movement of the movable member relative to the fixed housing in the direction parallel to the substrate, and the displacement of the connection object in the direction orthogonal to the substrate is And is absorbed by the movement of the movable housing relative to the movable member in the direction perpendicular to the substrate. At this time, even if a rotational moment occurs around the contact point between the terminal and the connection object on the movable member, the movable member does not move in the direction orthogonal to the substrate. The terminal and the object to be connected do not slide (turn) at the contact points with each other without being rotated and translated along the substrate.

  According to the present invention, even if a rotational moment centered on the contact point between the terminal and the connection target is generated in the movable member, the movable member is translated along the substrate without rotating with respect to the connection target. Therefore, the terminal and the connection object do not slide (rotate) at the contact points, and the contact failure between the connection object and the connection object can be effectively prevented.

The front side perspective view of the connector which shows one Embodiment of this invention Rear perspective view of the connector Front view of connector Rear view of connector Top view of connector Bottom view of connector Connector side view Terminal perspective view Connector exploded perspective view Rear perspective view of movable member Bottom perspective view of lock member Front side perspective view of connector showing unlocked state Side view of connector showing unlocked state AA arrow direction sectional view showing the locked state AA arrow direction sectional view showing the unlocked state BB arrow direction sectional view showing the locked state CC direction arrow sectional view showing the unlocked state

  1 to 17 show an embodiment of the present invention, which shows a connector mounted on circuit boards of various electric devices.

  This connector is mounted on the substrate 1 and is connected to a mating connector 2 as a connection object. The mating connector 2 includes a plurality of pin-shaped mating terminals 3, and the mating terminal 3 is held by an insulating member 4.

  The connector of this embodiment is engaged with a fixed housing 10 fixed to the substrate 1 and is movable only in directions parallel to the substrate 1 (front-rear direction (X direction) and width direction (Y direction)). The movable member 20, the movable housing 30 that engages the movable member 20 movably only in the direction (vertical direction (Z direction)) perpendicular to the substrate 1, one end side is held by the movable housing 30, and the other end side is A plurality of terminals 40 held by the fixed housing 10 and a lock member 50 capable of restricting the movement of the movable housing 30 in a direction orthogonal to the substrate 1 are provided. The terminals 30 are spaced from each other in the width direction of the fixed housing 10. Are arranged.

  The fixed housing 10 is made of a synthetic resin molded product, and has a dimension in the width direction that is longer than a dimension in the front-rear direction. The fixed housing 10 is formed so as to be surrounded by the bottom surface portion 11, the back surface portion 12, and the left and right side surface portions 13, and the bottom surface portion 11 is provided with an opening 11 a through which the lower end side of the movable housing 30 is inserted. A plurality of terminal holding portions 12a for holding the other end sides of the respective terminals 30 are provided on the back side of the back portion 12, and the other end sides of the terminals 30 are press-fitted into the respective terminal holding portions 12a. Yes. A plurality of partition walls 12b are provided at intervals in the width direction on the back side of the back surface portion 12, and terminal holding portions 12a are provided between the partition walls 12b. On the inner surface side of each side surface portion 13, a first upper engagement portion 13 a and a first lower engagement portion 13 b that engage with the movable member 20 are provided at intervals in the vertical direction. The joint portions 13 a and 13 b are formed so as to protrude toward the inside of the fixed housing 10. In this case, the first upper engagement portion 13 a is provided on the center side in the front-rear direction of the side surface portion 13, and the first lower engagement portion 13 b is provided on each of the front and rear end sides of the side surface portion 13. Further, a metal fixing member 15 for fixing the fixed housing 10 to the substrate 1 is attached to each side surface portion 13.

  The movable member 20 is made of a synthetic resin molded product, and has a width dimension that is longer than a dimension in the front-rear direction, and is disposed in the fixed housing 10 so as to be movable in the front-rear direction, the width direction, and the vertical direction. ing. The movable member 20 is formed in a hollow shape surrounded by the front surface portion 21, the back surface portion 22, and the left and right side surface portions 23, and the upper surface side and the lower surface side thereof open upward and downward, respectively. Notch portions 22 a are provided in portions other than the width direction both ends of the back surface portion 22, and the notches 22 a are formed so as to open the upper end side of the back surface portion 22. On the outer surface side of each side surface portion 23, a second upper engagement portion 23 a that engages with the lock member 50 and a second lower engagement portion 23 b that engages with the fixed housing 10 are spaced apart from each other in the vertical direction. The engaging portions 23 a and 23 b are formed so as to protrude toward the outside of the movable member 20. The second upper engagement portion 23 a and the second lower engagement portion 23 b are formed so as to extend from the front end to the rear end of the movable member 20, respectively, and the second lower engagement portion 23 b is formed in the fixed housing 10. The first upper engaging portion 13a and the first lower engaging portion 13b are disposed so as to be movable in the front-rear direction. In this case, as shown in FIG. 16, a gap S1 having a predetermined dimension is provided between the widthwise end of each second lower engagement portion 23b and the inner surface of the side surface portion 13, and each gap The movable member 20 is movable in the width direction with respect to the fixed housing 10 by S1. On the other hand, the thickness dimension in the vertical direction of each second lower engagement portion 23b is substantially equal to the interval between the first upper engagement portion 13a and the first lower engagement portion 13b. As a result, the vertical movement of the movable member 20 with respect to the fixed housing 10 is restricted. Each side surface portion 23 is provided with a first engagement hole 23c with which the movable housing 30 is engaged. The first engagement hole 23c extends in the vertical direction and the upper end is opened at the upper surface of the movable member 20. It is formed to do. Further, each side surface portion 23 is provided with a second engagement hole 23d with which the lock member 50 is engaged. The second engagement hole 23d extends in the front-rear direction and the rear end thereof is on the back surface of the movable member 20. It is formed to open. In this case, the first engagement hole 23c and the second engagement hole 23d communicate with each other so as to cross each other at a substantially central position in the vertical direction of the movable member 20.

  The movable housing 30 is formed of a synthetic resin molded product, is formed in a rectangular parallelepiped shape having a vertical dimension that is longer than the longitudinal dimension, and is disposed in the movable member 20 so as to be movable in the vertical direction. In this case, the dimensions of the movable housing 30 in the front-rear direction and the width direction are substantially the same as the dimensions of the movable member 20 in the front-rear direction and the width direction. In addition, movement in the width direction is regulated. The lower end side of the movable housing 30 is inserted through the opening 11 a of the fixed housing 10 and protrudes downward from the lower surface of the fixed housing 10. In this case, as shown in FIG. 14, gaps S2 having a predetermined dimension are provided between both ends of the movable housing 30 in the front-rear direction and both ends of the opening 11a in the front-rear direction, and the movable housing 30 corresponds to each gap S2. Is movable in the front-rear direction with respect to the fixed housing 10. A plurality of terminal holes 31 for holding one end side of each terminal 40 are provided in the movable housing 30, and one end side of each terminal 40 is fixed to the movable housing 30 by being press-fitted into the terminal hole 31. It has become. The lower surface of the movable housing 30 is provided with a plurality of insertion ports 32 into which the mating terminals 3 are inserted, and the insertion port 32 is formed in a tapered shape in which the opening gradually widens downward. On both side surfaces of the movable housing 30, a third upper engagement portion 30 a and a third lower engagement portion 30 b that engage with the movable member 20 are provided so as to face each other with an interval in the vertical direction. These engaging portions 30 a and 30 b are formed so as to protrude toward the outside of the movable housing 30. The third upper engagement portion 30a and the third lower engagement portion 30b are disposed on the upper rear end side on the side surface of the movable housing 30, and are vertically arranged in the first engagement hole 23c of the movable member 20. It is arranged to move freely.

  Each terminal 40 is formed by punching and bending a metal plate, and is arranged at intervals in the width direction. The terminal 40 includes a pair of contact portions 41 that come into contact with the mating terminal 3, a first fixed portion 42 that is fixed to the movable housing 30, a second fixed portion 43 that is fixed to the fixed housing 10, and a first The movable portion 44 that is elastically deformable formed between the fixed portion 42 and the second fixed portion 43, and the substrate connecting portion 45 that is connected to the substrate 1.

  Each contact portion 41 is provided on one end side of the terminal 40 and is formed so as to face each other in the width direction of the terminal 40. Each contact portion 41 is formed to be elastically deformable in the width direction of the terminal 40, and the mating terminal 3 is press-fitted between the contact portions 41a formed on the mountain side so as to approach each other.

  The first fixed portion 42 is provided on one end side of the terminal 40 and is held by the movable housing 30. The first fixing portion 42 is formed in a substantially U-shape that opens toward the front end side of the terminal, and is provided so that each contact portion 41 extends upward from the upper ends of both side surface portions thereof. At the rear ends of both side surfaces of the first fixed portion 42, a locking portion 42 a that locks to the inner surface of the terminal hole 21 of the movable housing 20 is projected, and the first fixed portion 42 is press-fitted into the terminal hole 31. The first fixing portion 42 is fixed to the movable housing 30 by locking the locking portion 42 a.

  The second fixing portion 43 is provided on the other end side of the terminal 40 and is held by the fixing housing 10. The second fixing portion 43 is formed so as to extend in the up-down direction, and locking portions 43 a that lock to the terminal holding portions 12 a of the fixed housing 10 protrude from both ends in the width direction. That is, the second fixing portion 43 is fixed to the fixed housing 10 by press-fitting into the terminal holding portion 12a and locking the locking portion 43a.

  The movable portion 44 includes a first elastic piece portion 44a extending upward from the first fixed portion 42, a second elastic piece portion 44b extending rearward from the upper end side of the first elastic piece portion 44a, and a second The third elastic piece portion 44c extending upward from the upper end side of the fixing portion 43, and the second elastic piece portion 44b and the third elastic piece portion 44c are formed to be bent in a substantially U shape. The fourth elastic piece portion 44d is elastically deformed in the front-rear direction, the width direction, and the vertical direction by the elastic piece portions 44a, 44b, 44c, and 44d.

  The board connecting portion 45 extends from the lower end of the second fixing portion 43 and is formed to extend toward the rear of the terminal 40.

  The lock member 50 is made of a synthetic resin molded product, and is engaged with the movable housing 30 so as to be movable in the front-rear direction. The lock member 50 includes an upper surface portion 51 and left and right side surface portions 52 and is formed so as to cover the upper surface side of the movable housing 30. The upper surface portion 51 is formed as a flat plate, and an operation portion 51a extending in the width direction is projected from the approximate center of the upper surface. Engagement grooves 52 a that engage with the movable member 20 are provided on the inner surface of each side surface portion 52. Each engagement groove 52a extends in the front-rear direction and is formed so that the front end is opened at the front end surface of the side surface part 52, and is engaged with the second upper engagement part 23a of the movable member 20 so as to be movable in the front-rear direction. doing. Further, an engaging portion 52 b that engages the movable member 20 is provided on the lower end side of each side surface portion 52, and the engaging portion 52 b is formed so as to protrude inward in the width direction of the lock member 50. . The engagement portion 52b is disposed near the front end of the lock member 50, and is disposed in the second engagement hole 23d of the movable member 20 so as to be movable in the front-rear direction. In this case, the engagement portion 52b is formed so that the length in the front-rear direction is substantially half of the length in the front-rear direction of the second engagement hole 23d, as shown in FIG. 23d, the third upper engagement portion 30a and the third lower engagement portion 30b are interposed between the third upper engagement portion 30a and the third lower engagement portion 30b of the movable housing 30. When the movement of the side engagement portion 30b in the vertical direction is restricted and moved to the front position of the second engagement hole 23d as shown in FIG. 15, the third upper engagement portion 30a of the movable housing 30 and the third engagement portion 30b are moved. The movement of the third upper engagement portion 30a and the third lower engagement portion 30b in the vertical direction is released from the gap with the lower engagement portion 30b. In addition, two protrusions 51b that are engaged with the upper end of the first engagement hole 23c of the movable member 20 are provided on the lower surface of the upper surface portion 51 at two intervals in the front-rear direction on both sides in the width direction of the upper surface portion 51. It has been. Thus, when the engaging portion 52b moves to the rear position of the second engaging hole 23d, the front protrusion 51b gets over the upper end of the back surface portion 22 and engages with the upper end of the first engaging hole 23c. As shown in FIG. 14, the lock member 50 is held in the rear position. Further, when the engaging portion 52b moves to the front position of the second engaging hole 23d, the rear protruding portion 51b gets over the upper end of the back surface portion 22 and engages with the upper end of the first engaging hole 23c, As shown in FIG. 15, the lock member 50 is held in the forward position.

  The connector configured as described above is disposed on the upper surface of the substrate 1 and is fixed to the substrate 1 by soldering the fixing members 15 of the fixed housing 10 and the substrate connecting portions 45 of the terminals 40 to the substrate 1. . At that time, the lower end side of the movable housing 30 is inserted into the opening 1 a provided in the substrate 1.

  Next, when the mating connector 2 is connected to the connector, after the movable housing 30 is locked by the locking member 50 by moving the locking member 50 to the rear position as shown in FIGS. The mating terminal 3 of the side connector 2 is inserted into the insertion port 32 of the movable housing 30 from below the substrate 1. At this time, when the mating terminal 3 is inserted into the movable housing 30, the mating terminal 3 is held between the contact portions 41a of the contact portions 41 while spreading the contact portions 41 of the terminals 40, and the contact portions 41a. Is brought into pressure contact with the mating terminal 3 so that the mating terminal 3 and the terminal 40 are connected. Further, when the mating terminal 3 is press-fitted between the contact portions 41, the movable housing 30 tries to move upward against the press-fitting, but the third upper engagement of the movable housing 30 as shown in FIG. Since the engagement portion 52b of the lock member 50 is interposed between the portion 30a and the third lower engagement portion 30b, the upward movement of the movable housing 30 is restricted by the lock member 50. That is, when the movable housing 30 freely moves upward when the mating terminal 3 is press-fitted between the contact portions 41, the mating length of the mating terminal 3 (from the tip of the mating terminal 3 to the terminal 40). (The length to the contact point) may be insufficient, but by restricting the upward movement of the movable housing 30 by the lock member 50, the mating length of the mating terminal 3 is sufficiently ensured. Further, even when the upward movement of the movable housing 30 is restricted by the lock member 50, the movable member 20 can move in the front-rear direction and the width direction with respect to the fixed housing 10, so that the mating terminal at the time of connection 3 is absorbed by the movement of the movable member 20 with respect to the fixed housing 10 in the front-rear direction or the width direction.

  After the connection with the mating connector 2 is completed as described above, the lock member 50 is moved to the front position as shown in FIG. 1, and the lock of the movable housing 30 by the lock member 50 is released. That is, when the lock member 50 is moved to the front position, the engagement portion 52b of the lock member 50 is moved to the third upper engagement portion 30a and the third lower engagement portion 30b of the movable housing 30, as shown in FIG. Therefore, the movable housing 30 can move in the vertical direction with respect to the fixed housing 10.

  Here, when the substrate 1 and the mating connector 2 are displaced from each other due to vibration or impact, the first and the movable housings 20 and 30 are allowed to move due to the elastic deformation of the movable portion 44 of each terminal 40. The misalignment of the mating connector 2 with respect to 1 is absorbed. At that time, since the movable housing 20 is restricted from moving in the front-rear direction and the width direction by the movable member 20, the displacement in the front-rear direction and the width direction is caused by the movement of the movable member 20 in the front-rear direction and the width direction. Only absorbed by. Further, since the movable member 20 is restricted from moving in the vertical direction by the fixed housing 10, the positional deviation in the vertical direction is absorbed only by the vertical movement of the movable housing 30. Here, when the mating connector 2 is displaced in the front-rear direction, the movable member 20 moves in the front-rear direction, and a rotational moment about the contact point between the terminal 40 and the mating terminal 3 is applied to the movable member 20. However, since the movable member 20 is restricted from moving in the vertical direction, the movable member 20 translates in the front-rear direction along the substrate 1 without rotating with respect to the counterpart terminal 3, and the terminal 40 and the counterpart terminal 3. And do not slide (rotate) at the contact points.

  When the connection with the counterpart connector 2 is to be released, the movable housing 30 is locked by the lock member 50 by moving the lock member 50 to the rear position as shown in FIG. The side terminal 3 is pulled out downward. At that time, since the movable housing 30 is restricted from moving downward by the lock member 50, the movable portion 44 of the terminal 40 is not elastically deformed with the removal of the mating terminal 3.

  As described above, according to the present embodiment, the fixed housing 10 is movably engaged only in the direction parallel to the substrate 1 (front-rear direction and width direction), and the movable housing 30 is orthogonal to the substrate 1 (up and down). Since the movable member 20 that is movably engaged only in the direction (direction) is provided, when the mating connector 2 moves in a direction parallel to the substrate 1, rotation about the contact point between the terminal 40 and the mating terminal 3 is performed. Even if a moment is generated, the movable member 20 can be translated along the substrate 1 without rotating with respect to the counterpart terminal 3. Thereby, since the terminal 40 and the other party terminal 3 do not slide (rotate) at a contact, the poor contact between the terminal 40 and the other party terminal 3 can be effectively prevented. In particular, when a conductive film such as plating is provided on the surface of the terminal 40 or the counterpart terminal 3, the peeling of the conductive film can be prevented. There is an advantage that it will not increase.

  Further, since the lock member 50 capable of restricting the movement of the movable housing 30 in the direction orthogonal to the substrate 1 is provided, the movable portion 44 of the terminal 40 is elastically deformed by locking the movable housing 30 by the lock member 50. The mating terminal 3 can be inserted / removed without making it. Thereby, the mating terminal 3 can be easily inserted and removed, and plastic deformation due to excessive displacement of the movable portion 44 of the terminal 40 when the mating terminal 3 is inserted and removed can also be prevented. In addition, since the fitting length of the mating terminal 3 with respect to the terminal 40 can be sufficiently ensured, the connection reliability can be improved.

  In this case, since the lock member 50 is configured to restrict only the movement of the movable housing 30 with respect to the movable member 20, the movement of the movable housing 30 in the direction orthogonal to the substrate 1 is restricted by the lock member 50. Even in this state, the movable member 20 can be moved in a direction parallel to the substrate 1 with respect to the fixed housing 10. Thereby, since the position shift in the direction parallel to the board | substrate 1 of the other party terminal 3 at the time of a connection can be absorbed, a connection operation | work can be performed easily.

  DESCRIPTION OF SYMBOLS 1 ... Board | substrate, 2 ... Mating connector, 3 ... Mating terminal, 10 ... Fixed housing, 13a ... 1st upper engaging part, 13b ... 1st lower engaging part, 20 ... Movable member, 23a ... 1st 2 upper engaging portions, 23b ... second lower engaging portion, 23c ... first engaging hole, 23d ... second engaging hole 23d, 30 ... movable housing, 30a ... third upper engaging portion Part, 30b ... third lower engagement part, 40 ... terminal, 44 ... movable part, 50 ... lock member, 52a ... engagement groove, 52b ... engagement part.

Claims (3)

A fixed housing fixed to the substrate, a movable housing provided movably with respect to the fixed housing, and one terminal side held by the movable housing and the other end side held by the fixed housing, In the connector in which the connection object is connected to one end side of the terminal held in the movable housing, and the movement of the movable housing relative to the fixed housing is allowed by elastic deformation of the terminal,
A connector comprising: a movable member that is movably engaged with the fixed housing only in a direction parallel to the substrate; and the movable housing is movably engaged only in a direction orthogonal to the substrate. The connector according to claim 1, further comprising a lock member capable of restricting movement of the movable housing in a direction orthogonal to the substrate. The connector according to claim 2, wherein the lock member is configured to restrict only movement of the movable housing relative to the movable member.

Images