JP6356775B2 - Electrical connector assembly - Google Patents

Description

  The present invention relates to an electrical connector assembly having a circuit board electrical connector mounted on a circuit board mounting surface and another circuit board electrical connector mounted on another circuit board mounting surface.

  As an electrical connector for this type of circuit board, Patent Document 1 discloses that a housing for holding a terminal has a fixed housing fixed to the circuit board and a movable housing movable with respect to the fixed housing. A connector is disclosed that spans between the fixed housing and the movable housing.

  In the connector of Patent Document 1, a fixed housing attached on the surface of a circuit board has a square frame shape, and a central portion that is an inside thereof is opened through vertically, and a movable housing is located in the central portion. A space is formed between the movable housing and the fixed housing. The movable housing has a hollow portion that opens upward, and a mating connector as a mating connector is fitted into the hollow portion from above.

  The terminal has an elastic piece provided with a contact portion for contact connection with the mating connector on one end side, located in the hollow portion of the movable housing, and a substrate connection portion soldered to the circuit board on the other end side outside the fixed housing. Protrusively provided.

  The terminal is provided with an arm portion having an elastic piece portion having the contact portion on one end side extending to the bottom portion of the movable housing, bent at the lower end thereof, and extending out of the movable housing, at an intermediate position of the arm portion. A fixed piece is erected and is press-fitted and fixed in the hole of the movable housing. Further, the terminal has a board connecting part provided on the other end side connected to an arm part located at the bottom of the fixed housing, and a fixed piece is erected at an intermediate position of the arm part. It is press-fitted into the hole and fixed. The terminal is provided with a movable part between the arm part on the movable housing side and the arm part on the fixed housing side so that it can be elastically displaced by forming an open loop protruding from the position of the bottom part. Connecting both arms. In order to ensure a large amount of possible elastic deformation, the movable part is positioned close to each other so that the entire shape of the movable part approaches an annular shape. Yes. The movable portion is located in a space between the fixed housing and the movable housing, and the movable housing can be moved in any of the orthogonal coordinate axes in the space by elastic deformation of the movable portion, So-called floating is made.

JP2014-099361

  The electrical connector for circuit boards is required to have a small height dimension from the surface of the circuit board, while the floating amount is desired to be large in any direction.

  The terminal in the electrical connector for circuit board disclosed in Patent Document 1 has a substantially loop shape with the movable part enabling floating, so the height direction of the connector (perpendicular to the plate surface of the circuit board) Alternatively, if the floating amount is to be increased in the width direction (lateral direction parallel to the plate surface of the circuit board), the movable part must be increased in those directions, which results in a connector in the same direction. Will become larger.

  In view of such circumstances, the present invention provides an electrical connector for a circuit board that can secure a sufficient floating amount in the height direction and the width direction of the connector without increasing the size of the connector in the height direction of the connector. Let it be an issue.

An electrical connector assembly according to the present invention is mounted on a mounting surface of a first connector mounted on a mounting surface of a circuit board and another circuit board disposed in parallel with the mounting surface of the circuit board. A connector assembly having a second connector fitted and connected to the first connector with a direction perpendicular to the surface as a connector fitting direction, the first connector comprising a male first terminal; A first housing for holding the first terminal, the first terminal being in contact with the first connector for connection to the circuit board on one end side and the second connector on the other end side. The first housing has a fixed housing for attachment to the circuit board via the first terminal and a movable housing movable relative to the fixed housing; The second connector includes a female second terminal and the second connector A second housing for holding a child, and the second terminal has a second connection portion for connection with another circuit board on one end side and a contact with the first connector on the other end side. A second contact portion.

In this electrical connector assembly, in the present invention, the first terminal includes a fixed side held portion held by the fixed housing, a movable side held portion held by the movable housing, and the fixed side held portion. And an elastic part that can be elastically deformed by connecting the movable side held part, and the second terminal is made of a metal plate and has a bent shape, and the second contact part in the connector fitting direction. An intermediate base portion formed at an intermediate position between the second connection portion and connected to the base end of the second contact portion, and a held portion held by the second housing at a position different from the intermediate base portion in the connector fitting direction. And a connecting portion formed as one flat surface by connecting the held portion to the intermediate base portion, and the second contact portion is mutually transverse in a direction perpendicular to the connector fitting direction. the first connector from the intermediate base plate thickness direction as an opposite direction Toward the side has a pair of contact pieces extending in the connector fitting direction, the held portion is a plate of the pair of contact pieces at a position different from the pair of contact pieces looking at the connector fitting direction The second housing has a housing portion for housing the intermediate base portion of the second terminal and the pair of contact pieces, and the housing is disposed in a direction perpendicular to the thickness direction. The portion forms a gap in the lateral direction with respect to the intermediate base portion, and forms a space that allows elastic deformation in the opposing direction of the pair of contact pieces with respect to the contact piece. Yes.

  In the present invention, the connecting portion of the second terminal may have a constricted shape.

  In the present invention, the intermediate base portion of the second terminal has a U-shape when viewed in the connector fitting direction, and a pair of side portions having a plate surface perpendicular to the opposing direction of the contact pieces, Each of the contact pieces is connected to the corresponding side part, and the held part is connected to the bottom part via the connection part. It is good also as being connected to.

  As described above, according to the present invention, the terminal held by the fixed housing and the movable housing has the elastic portion located in the accommodating space formed between the fixed housing and the movable housing, and the elastic portion However, since the corrugated portion is formed continuously through a plurality of bent portions formed by reversing the bending direction while forming one continuous belt-like portion, the elastic portion is enlarged in the height direction. The amount of elastic deformation can be sufficiently secured even if it is not required, and as a result, the floating amount can be increased even with a connector in which the height dimension of the connector is suppressed.

FIG. 1A is a connector assembly having a plug-side connector (first connector) and a receptacle-side connector (second connector) fitted and connected thereto as an embodiment of the present invention. FIG. 1B is an external perspective view showing the state after the fitting connection. FIG. 2 is a perspective view that is cross-sectioned to show the inside of both connectors of FIG. 1, FIG. 2A is before fitting connection corresponding to FIG. 1A, and FIG. 2B is FIG. It is the state after the corresponding fitting connection. The first connector of FIG. 1 is shown as a single unit, FIG. 3A is an external perspective view, and FIG. 3B is a cross-sectional perspective view. The 2nd connector of FIG. 1 is shown alone, FIG. 4 (A) is an external perspective view, and FIG. 4 (B) is a cross-sectional perspective view. It is a perspective view which extracts and shows only one pair of each of a 1st terminal and a 2nd terminal from the 1st connector and 2nd connector before the connector fitting connection shown by FIG. 1 (A).

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

  FIG. 1 shows a connector assembly having a plug-side connector (hereinafter referred to as “first connector”) and a receptacle-side connector (hereinafter referred to as “second connector”) fitted and connected thereto as an embodiment of the present invention. FIG. 1A is an external perspective view showing a state before fitting connection, and FIG. 1B is a state after fitting connection. Here, the plug side indicates a male terminal, and the receptacle side indicates a side having a female terminal fitted therein. 2 is a perspective view of the inside of both connectors shown in FIG. 1, and FIG. 2 (A) is a pre-fitting connection corresponding to FIG. 1 (A), and FIG. The state after the fitting connection corresponding to 1 (B) is shown. 3 shows the first connector as the plug-side connector as a single unit, FIG. 3A is an external perspective view, and FIG. 3B is a cross-sectional perspective view. 4 shows the second connector as the receptacle-side connector alone, FIG. 4 (A) is an external perspective view, and FIG. 4 (B) is a cross-sectional perspective view.

  The first connector 1 is a male first terminal (the terminal and the housing constituting the first connector are designated “first”, and the second connector 2 is designated “second”). 10 and a first housing 20 made of an electrically insulating material for holding the first terminal 10. The first housing 20 includes a fixed housing 21 attached to a circuit board (not shown) via the first terminal 10 and a movable housing 26 movable with respect to the fixed housing 21. The first connector 1 has a substantially rectangular parallelepiped shape in which the first housing 20 extends in a longitudinal direction and a short direction in a plane parallel to the circuit board, and forms two rows in the longitudinal direction of the first housing 20. The first terminals 10 are arranged. The two rows of first terminals 10 are opposed to each other in a symmetric direction in a short direction (connector width direction) perpendicular to the longitudinal direction.

  The fixed housing 21 forms a peripheral wall 24 by a side wall 22 extending vertically and an end wall 23 extending in a short direction, and the inner side of the peripheral wall 24 penetrates up and down, and from above. A central space 24A for accommodating the movable housing 26 is formed. The side wall 22 extends over the terminal arrangement range in the longitudinal direction, and a protruding wall 22A for holding the first terminal 10 is provided on the outer wall surface. The inner wall surface of the side wall 22 is fixed inwardly and downwardly. A side recess 22B is formed. The fixed-side recess 22B forms a part of a housing space that houses an elastic portion of the first terminal 10 described later. The protruding wall 22A and the fixed-side recess 22B will be described in detail later in relation to the first terminal 10.

  The end wall 23 of the fixed housing 21 is provided with an L-shaped mounting bracket 30 on the outer surface thereof, and is firmly fixed to the circuit board by soldering at a mounting hole 31 formed in the mounting bracket 30. The The mounting bracket 30 is not essential for mounting the fixed housing 21 to the circuit board. When the mounting strength of the first terminal 10 by solder connection to the circuit board can be sufficiently secured, the mounting bracket 30 is It is unnecessary.

  The movable housing 26 has a penetrating portion 26A located so as to penetrate into the central space 24A of the fixed housing 21, and a projecting portion 26B located so as to project upward from the central space 24A. In the movable housing 26, a receiving recess 27 for receiving a mating connection member, for example, a second connector as a mating connector, is formed in the range extending from the protruding portion 26B to the penetration portion 26A. A center protruding wall 29 </ b> A for holding the first terminal 10 rising from the bottom wall 29 of the movable housing 26 is provided in the receiving recess 27. Further, on the outer surface of the penetration portion 26A of the movable housing 26, a movable side recess 26C is formed to open downward so as to face the fixed side recess 21B of the fixed housing 21. The movable side recess 26C, together with the fixed side recess 22B, forms an accommodation space 20A for accommodating the elastic portion of the first terminal 10 described later.

  As can be seen in FIG. 5, the first terminal 10 forming the male terminal is shaped while maintaining the flat surface of the metal plate. The first terminals 10 are arranged in pairs facing each other in the same direction so that terminals of the same shape are symmetrical in the connector width direction, and a plurality of pairs are arranged in the connector longitudinal direction. In FIG. 5, only one pair of the plurality of pairs of first terminals 10 is extracted from the first housing 20, and is illustrated together with the pair of second terminals 40 of the second connector 2 as a mating connector connected thereto. Has been. The two first terminals 10 illustrated as a pair are arranged symmetrically but have the same shape, and therefore, one first terminal 10 will be described below.

  The first terminal 10 is suspended at a position close to the second terminal 40 that is a counterpart facing in the connector width direction and is held by the movable housing 26, and the first terminal 10 is above the movable side column 11. In the connector width direction, the fixed side column portion 12 that lies vertically on the opposite side, the connection portion 13 that extends laterally from the lower end of the fixed side column portion 12, the movable side column portion 11 and the fixed side column portion 12 It has the elastic part 14 located in between.

  The movable side column part 11 has a contact part 11A in which the upper half part is in contact with the female second terminal 40 of the second connector 2 and the lower half part is fixedly held by the movable housing 26. Part 11B is formed. The contact portion 11A is chamfered so that the front end (upper end) can be easily fitted into the second terminal 40, and the movable side held portion 11B is engaged with the side edge to be engaged with the movable housing 26. Stop protrusion 11B-1 is provided.

The movable side held portion 11B is press-fitted from below into a holding groove 29B formed in the bottom wall 29 of the movable housing 26 and is held by the holding groove 29B (see FIG. 3B). At that time, the locking protrusion 11B-1 bites into the corresponding inner surface of the holding groove 29B, and the locking becomes strong.

  The fixed side column part 12 is formed as a fixed side held part 12B at an upper part than the base part 12A on the lower end side. The fixed side held portion 12B is provided with a locking projection 12B-1 for locking to the fixed housing 21. The fixed-side held portion 12B is press-fitted from below into a holding groove 22A-1 formed vertically through the thickness of the protruding wall 22A protruding from the bottom wall surface of the side wall 22 of the fixed housing 21, and the holding groove 22A. Held at -1. At that time, the locking protrusion 12B-1 bites into the corresponding inner surface of the holding groove 22A-1, and the locking is strengthened.

  A connecting portion 13 that extends laterally from the lower end of the base portion 12 </ b> A of the fixed side column portion 12 along the lower surface of the fixed housing 21 and protrudes outside the fixed housing 21 is provided.

  The first terminal 10 has an elastic portion 14 at a portion located between the movable side held portion 11B and the fixed side held portion 12B. The elastic portion 14 is connected to the movable side held portion 11B to the left side via the movable side transition portion 15 extending in the lateral direction from the lower end of the movable side held portion 11B, and to the right side, the fixed portion is fixed. The fixed side held portion 12B is connected to the fixed side held portion 12B through a fixed side transition portion 16 extending in the lateral direction from the base portion 12A below the side held portion 12B.

  The elastic part 14 rises from the movable side transition part 15 and the fixed side transition part 16 and is bent in a substantially M shape to form one continuous band-like part. The elastic portion 14 having a substantially M shape has a band shape narrower than the movable side held portion 11B and the fixed side held portion 12B, and has two bent portions 14A and 14C having a curved shape at the upper portion and a lower portion. 1B has an inner straight portion 14D that connects the bent portion 14A and the bent portion 14B, an inner straight portion 14E that connects the bent portion 14C and the bent portion 14B, and the bent portion 14A. And the outer straight portions 14F and 14G extending outward from the bent portions 14C, respectively, and one U-shaped corrugated portion is positioned between two inverted U-shaped corrugated portions as a whole. The three corrugations are formed in a continuous waveform so as to form a shape, thereby enabling elastic deformation. Thus, each of the three corrugated parts has a bent part and a straight part. In the three corrugated portions, each of the straight portions 14D, 14E, 14F, and 14G forms a widened portion that is inclined so as to widen the open width of the corrugation as the distance from the bent portions 14A and 14C or 14B increases. .

  Of the three corrugated parts, the corrugated part located on the left side extends downward from the outer straight part 14F and inclines downward (in the right side in FIG. 5) downward in the vertical direction at a position below the bent part 14B. On the other hand, the corrugated portion located on the right side extends downward from the outer straight portion 14G and is directed downwardly at a lower position than the lower bent portion 14B (FIG. 5). It has an inclined portion 14I inclined to the left side. Thus, the inclined portion 14H and the inclined portion 14I are inclined inwardly toward the lower side, thereby narrowing the distance between them in a range below the lower bent portion 14B.

  The elastic portion 14 has a strip shape with a narrow width and is corrugated so as to obtain elasticity. However, in this embodiment, the elastic portion 14 is gradually more than the bent portions 14A and 14C over the central portions of the straight portions 14D, 14E, 14F, and 14G. In addition, the terminal width (band width) is narrower, and the terminal width (band width) is gradually narrower than the bent portion 14B toward the center of the inner straight portions 14D and 14E. In addition, the elastic portion 14 has a terminal width (band width) gradually narrower than the inclined portions 14H and 14I over the central portions of the outer straight portions 14F and 14G. In addition, the elastic part 14 should just be that the terminal width (band width) becomes narrow gradually, and the position of a center part is not ask | required. Thus, the elastic part 14 is easily deformed elastically with the bent part as a fulcrum.

  Next, as shown in FIGS. 1, 2, and 4, the second connector 2 includes a female second terminal 40 and a second housing 50 made of an electrically insulating material that holds the second terminal 40. The second housing 50 is attached to a circuit board (not shown) via the second terminal 40. The second housing 50 has a substantially rectangular parallelepiped outer shape in which the longitudinal direction and the short direction in the first housing 20 of the first connector 1 are the longitudinal direction and the short direction of the second housing 50, respectively. The second terminals 40 are arranged in two rows in the longitudinal direction of the housing 50. The two rows of second terminals 40 oppose each other in the short direction (connector width direction) perpendicular to the longitudinal direction. 1 and 2, the second connector 2 is shown in a posture facing the fitting direction with respect to the first connector 1, but in FIG. 4 showing the second connector 2 alone, the posture is inverted in the vertical direction. It is drawn in.

  The second housing 50 of the second connector 2, which is the counterpart of the first connector 1, has an attachment block portion 51 that is attached to a circuit board (not shown), and fitting from the attachment block portion 51 to the first connector 1. And a fitting block portion 52 protruding in the direction, both of which have a substantially rectangular parallelepiped outer shape in which the longitudinal direction and the short direction of the first connector 1 are respectively the same as the long direction and the short direction. 1 and 2, the second housing 50 has a central portion of the mounting block 51 as viewed from above, an upper immersive portion 53A on the upper side, and a lower immersive portion 53B that is narrower and deeper than the upper immersive portion 53A on the lower side. A central wall portion 54 is formed between the upper immersive portion 53A and the lower immersive portion 53B, and extends along the inner walls of the upper immersive portion 53A and the lower immersive portion 53B. A terminal groove 55 that penetrates the portion 54 is formed. A second terminal 40, which will be described in detail later, is press-fitted and held in the terminal groove 55.

  On the outer surface of the side wall 56 extending in the longitudinal direction of the mounting block 51 (see FIG. 4A), a concave wall portion 56A is formed at the central portion in the longitudinal direction. A connection portion 42 of the second terminal 40, which will be described in detail later, is located, which facilitates solder connection of the connection portion 42 to the circuit board and confirmation of the connection.

  The end wall 57 of the second housing 50 is provided with an L-shaped mounting bracket 60 on the outer surface thereof, and is firmly fixed to the circuit board by soldering at a mounting hole 61 formed in the mounting bracket 60. Is done. The mounting bracket 60 is not essential for mounting the second housing 50 to the circuit board. When the mounting strength of the second terminal 40 by soldering to the circuit board can be sufficiently secured, the mounting bracket 60 is used. Is unnecessary.

  The second terminal 40 constituting the female terminal is formed by bending the metal strip member in the thickness direction as seen in FIG. 5 showing the state before the connector fitting connection corresponding to the first terminal 10 described above. It is attached. Similar to the first terminal 10, the second terminals 40 are arranged in pairs facing each other in the same direction so that the terminals having the same shape are symmetrical in the connector width direction. Pairs are arranged. In FIG. 5, only a pair of the plurality of pairs of second terminals 40 is illustrated as being extracted from the second housing 50. The two second terminals 40 illustrated as a pair are arranged symmetrically but have the same shape, and therefore, one of the second terminals 40 will be described below.

  The second terminal 40 in FIG. 5 includes a flat belt-like held portion 41 that forms a plate surface perpendicular to the plate surface of the first terminal 10 at the position of the intermediate portion of the second terminal 40, and The connection portion 42 bent at a right angle with respect to the plate surface of the held portion 41 on the upper end side from the held portion 41, and the cross section is U-shaped at an intermediate position below the held portion 41. The intermediate base portion 43 and a contact portion 44 including a pair of contact pieces 44 </ b> A extending in a finger shape further below the intermediate base portion 43.

  The held portion 41 has a flat band shape, and locking projections 41 </ b> A that bite into the corresponding surfaces of the terminal grooves 55 of the second housing 50 are provided on both side edges.

  The supported portion 43 is connected to the held portion 41 through a constricted connecting portion 45, and a plate-like bottom surface portion 43 </ b> A that extends a plate surface of the held portion 41 downward, and the bottom surface The side surface 43B is perpendicular to the plate surface of the bottom surface from both side edges of the portion 43A, and the bottom surface 43A and the side surfaces 43B on both sides form a U shape.

  The contact portion 44 is formed by opposing a pair of contact pieces 44 </ b> A extending downwardly from the lower ends of the side surface portions 43 </ b> B on both sides of the intermediate base portion 43. The pair of contact pieces 44A gradually incline toward the lower side and incline toward each other, minimize the distance in the vicinity of the lower end, spread toward the lower end again, and the throat 44A- 1 is formed. The distance between the contact pieces 44A in the throat portion 44A-1 is smaller than the plate thickness of the contact portion 11A of the first terminal 10 described above, and the contact portion 11A is clamped and elastically contacted by the throat portion 44A-1. It is like that.

  The second terminal 40 having such a shape is press-fitted from above into the terminal groove 55 of the second housing 50 in FIGS. 1 and 2 (FIG. 4 showing the second connector 2 upside down with respect to FIGS. 1 and 2). In that case, it is pressed from below. In FIG. 2A, the terminal groove 55 has a maximum outer peripheral shape of the second terminal 40, that is, a cross section of the central wall portion 54, because the second terminal 40 is press-fitted from above. An inner peripheral rectangular tube hole 54A corresponding to the outer peripheral shape of the intermediate base portion 43 having a letter shape is formed so as to penetrate the central wall portion 54 in the vertical direction, and allows the intermediate base portion 43 to pass therethrough. On the other hand, on the inner wall surface of the rectangular tube hole 54A and the upper recessed portion 53A, the intermediate base portion 43 having a U-shaped cross section passes through the rectangular tube hole 54A of the central wall portion 54, and then the upper recessed portion 53A A groove portion 55A for accommodating the flat belt-like held portion 41 located on the inner wall surface is formed as a groove having a depth corresponding to the plate thickness of the held portion 41, and the locking projection 41A of the held portion 41 is formed on the covered portion 41. When the holding portion 41 is press-fitted into the groove portion 55A, the holding portion 41 bites into the inner surface of the groove portion 55A, is held by the second housing 50, and is prevented from coming off. Further, when the second terminal 40 is press-fitted and assembled at a predetermined position on the inner wall surface of the lower immersion portion 53B below (above in FIG. 4) below the central wall portion 54, the intermediate base portion 43 and the contact portion 44 A groove 55B is formed to accommodate the. The groove portion 55B has a groove bottom surface in contact with the bottom surface portion 43A of the intermediate base portion 43 or forms a gap with respect to the intermediate base portion 43, and a groove side surface forms a gap with respect to the side surface portion 43B. In addition, a space that allows elastic deformation of the pair of contact pieces 44 </ b> A is formed with respect to the contact portion 44.

  The usage point of the circuit board electrical connector of this embodiment having such a configuration will be described below mainly based on FIGS.

  The first connector 1 and the second connector 2 are attached to the corresponding circuit boards by solder connection. That is, the first connector 1 is soldered by the connection portion 13 of the first terminal 10 held by the fixed housing 21 and the mounting bracket 30, and the second connector 2 is soldered by the connection portion 42 of the second terminal 40 and the mounting bracket 60. Are attached to the circuit board respectively. In FIG. 1 and FIG. 2, the circuit board is not shown, but the first connector 1 is attached to the circuit board on its lower surface and the second connector 2 on its upper surface.

  First, as can be seen in FIGS. 1A and 2A, the second connector 2 attached to the circuit board on the upper surface has the fitting block portion 52 facing downward and the first connector described above. It is brought to a position above the connector 1. Thereafter, the second connector 2 is lowered as it is, and the fitting block portion 52 enters the receiving recess 27 of the movable housing 26 of the first connector 1 and is fitted into the movable housing 26 (FIG. 1). (B), see FIG. 2B).

  When the second connector 2 is fitted to the first connector 1, the second terminal 40 of the second connector 2 has the contact portion 44 formed of a pair of finger-shaped contact pieces 44 </ b> A as the first terminal 10 of the first connector 1. The contact portion 11A is clamped to come into elastic contact with the contact portion 11A.

  Since the contact portion 44 of the second terminal 40 has a throat portion 44A-1 in the vicinity of the lower end of the pair of contact pieces 44A, the flat-band contact portion of the first terminal 10 is connected to the throat portion 44A-1. When 11A smoothly enters, the contact portion 11A of the first terminal 10 is pinched with an elastic force to be electrically connected to the first terminal 10.

  Thus, the first connector 1 and the second connector 2 are connected, and the circuit board on the first connector 1 side and the circuit board on the second connector 2 side are in a conductive state via the first terminal 10 and the second terminal 40. Become.

  The first terminal 10 of the first connector 1 has an elastic portion 14, and even if the second connector 2 is slightly deviated from the normal position or normal position in the connector longitudinal direction, short direction, and insertion / removal direction, or both connectors. Even when at least one of 1 and 2 receives vibration, the elastic portion 14 absorbs the deviation or vibration. Furthermore, in addition to the elastic portion 14, the contact portion 11A of the first terminal 10 has a flat belt shape, so that the contact portion 44 sandwiching the first terminal 10 is located between the throat portion 44A-1 and the plate surface of the contact portion 11A. However, although it involves friction in the connector short direction and insertion / extraction direction, it can be displaced (moved) relative to the contact portion 11A along the plate surface, and the displacement and vibration are also absorbed by this relative displacement.

  The behavior of the elastic portion 14 will be described in more detail. The first terminal 10 includes a movable side held portion 11B held by the movable housing 26 and a fixed side held portion 12B held by the fixed housing 21. In between, it has the elastic part 14 connected to the said movable side to-be-held part 11B and the fixed side to-be-held part 12B via the movable side transition part 15 and the fixed side transition part 16, respectively. The elastic portion 14 rises from the movable side transition portion 15 and the fixed side transition portion 16 and has a substantially M-shaped waveform, and is in any of the connector height direction, the connector longitudinal direction, and the short side direction (connector width direction). Since the first connector 1 and the second connector 2 are displaced in any of the above directions or receive vibrations, they are absorbed.

  The elastic portion 14 having a corrugated shape is a corrugated portion in which the straight portions 14D, 14E, 14F, and 14G are inclined to form a central U shape and reverse U shapes on both sides, and the bent portions 14B, 14A, and 14C. When the elastic portion 14 is compressed from the movable housing 26 and the fixed housing 21 in the connector width direction in the connector width direction, each waveform is formed. Even if the parts are close to each other, they are less likely to come into contact with each other, so that a large amount of elastic displacement is secured. As shown in the drawing, the elastic portion 14 may be inclined at all the straight portions so that wide portions are formed in each corrugated portion, but at least the movable side located outside both It is sufficient that the widened portion is formed for the corrugated portion adjacent to the held portion and the fixed-side held portion, and the corrugated portion located in the middle does not have the widened portion without being inclined. Good.

  Furthermore, the outer straight portions 14F and 14G are inclined portions 14H and 14I which are inclined so as to approach each other in the connector width direction at a lower position than the lower bent portion 14B located in the center in the connector width direction. Are connected to the movable side transition part 15 and the fixed side transition part 16 via the respective parts, so that there is no corrugated part between the movable side transition part 15 and the fixed side transition part 16, and the elastic part 14 is Even if the elastic displacement compressed in the connector width direction is generated and the movable side transition portion 15 and the fixed side transition portion 16 approach each other, they do not contact each other.

  In the present embodiment, the straight portions 14D, 14E, 14F, and 14G have a smaller band width than the bent portions 14A, 14B, and 14C, so that the bent portions 14A, 14B, and 14C are bent as fulcrums. The straight portions 14D, 14E, 14F, and 14G are made as long as possible, that is, by increasing the wave height, the elastic displacement of the elastic portion 14 can be changed in the connector height direction and the connector longitudinal direction ( It is possible to ensure a large amount in either the connector short direction (connector width direction) or the connector short direction (connector width direction). In addition, since the band widths of the straight portions 14D, 14E, 14F, and 14G are smaller than those of the bent portions 14A, 14B, and 14C, the stress applied to the bent portions when bending occurs is applied to the straight portions 14D, 14E, 14F, and 14G. By dispersing in the above, the bent portions 14A and 14C, or the bent portion 14B and the straight portions 14F and 14G, or adjacent straight portions are less likely to come into contact with each other at the time of elastic displacement. Further, as shown in the drawing, the elastic portion 14 may be configured such that the terminal width (band width) is gradually narrowed toward the central portion of the straight portion in all the straight portions. It is sufficient that the terminal width (band width) is gradually narrowed from the bent part and the straight part, and the other bent part and the straight part have such a terminal width (band). Width).

  The present invention is applicable not only to the case where the circuit boards to which each of the two connectors as shown in the figure are connected are parallel to each other, but also to a so-called right angle connector that is perpendicular to each other, for example. .

DESCRIPTION OF SYMBOLS 1 (1st) Connector 14 Elastic part 2 Mating member (2nd connector) 14A-C Bending part 10 (1st) Terminal 14D-G Straight part 11A Contact part 20 Housing 11B Movable side held part 20A Accommodating space 12B Fixed side held part 21 Fixed housing 13 Connection part 26 Movable housing

Claims (3)

A first connector mounted on the mounting surface of the circuit board and a connector fitted in a direction perpendicular to the mounting surface mounted on the mounting surface of another circuit board disposed in parallel with the mounting surface of the circuit board. A connector assembly having a second connector fitted and connected to the first connector as a mating direction,
The first connector includes a male first terminal and a first housing that holds the first terminal. The first terminal is connected to a circuit board on one end side. A first contact portion for contact with the second connector at the connection portion and the other end, the first housing comprising a fixed housing for attachment to the circuit board via the first terminal; A movable housing movable relative to the fixed housing;
The second connector includes a female second terminal and a second housing that holds the second terminal, and the second terminal is connected to another circuit board on one end side. In an electrical connector assembly having a second contact portion and a second contact portion for contact with the first connector on the other end side,
The first terminal connects the fixed side held portion held by the fixed housing, the movable side held portion held by the movable housing, and the fixed side held portion and the movable side held portion. And having an elastic part that is elastically deformable,
The second terminal is made of a metal plate and has a bent shape, and is formed at an intermediate position between the second contact portion and the second connection portion in the connector fitting direction, and is connected to a proximal end of the second contact portion. An intermediate base, a held portion held by the second housing at a position different from the intermediate base in the connector fitting direction, and a connecting portion formed by connecting the held portion to the intermediate base as a flat surface; The second contact portion has a lateral direction perpendicular to the connector fitting direction and a thickness direction of each other as a facing direction toward the first connector side from the intermediate base portion in the connector fitting direction. A pair of contact pieces extending, and the held portion has a plate thickness perpendicular to the plate thickness direction of the pair of contact pieces at a position different from the pair of contact pieces when viewed in the connector fitting direction. With a direction,
The second housing has a housing portion that houses the intermediate base portion of the second terminal and the pair of contact pieces, and the housing portion forms a gap in the lateral direction with respect to the intermediate base portion. In addition, an electrical connector assembly, wherein a space allowing elastic deformation in the opposing direction of the pair of contact pieces is formed with respect to the contact pieces.   The electrical connector assembly according to claim 1, wherein the connecting portion of the second terminal has a constricted shape. The intermediate base portion of the second terminal has a U-shape when viewed in the connector fitting direction, a pair of side surfaces having a plate surface perpendicular to the opposing direction of the contact pieces, and the pair of side surfaces It has a bottom part that connects the side edges,
3. The electrical connector according to claim 1, wherein each contact piece is coupled to the corresponding side surface portion, and the held portion is coupled to the bottom surface portion via the coupling portion. Assembly.

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