JP5913014B2 - connector - Google Patents

Description

  The present invention relates to a connector.

  Conventionally, a wire-to-board connector has been used to connect an electric wire such as a cable to a circuit board such as a printed circuit board (for example, see Patent Document 1). In such a wire-to-board connector, the wire connector connected to the end of the wire is fitted with the board connector mounted on the circuit board.

  FIG. 10 is a perspective view of a conventional wire-to-board connector. In addition, in the figure, (a) is a figure which shows the state before fitting, (b) is a figure which shows the state after fitting.

  In the figure, reference numeral 811 denotes a board connector housing, and 851 denotes a board connector terminal. The tail connector 853 of the terminal 851 is connected to a connection pad formed on the surface of the circuit board (not shown) by soldering or the like, so that the board connector is mounted on the circuit board. A fitting recess 813 is formed at the center of the housing 811 as shown in FIG.

  And the electric wire connector provided with the terminal 951 connected to the terminal end of the electric wire 991 has the housing 911 accommodated in the fitting recess 813 as shown in FIG. Mates with. As a result, the terminal 951 of the electric wire connector comes into contact with the terminal 851 of the board connector and becomes conductive.

  When the electric wire connector is fitted to the board connector, a protrusion 914 protruding forward from the front end of the upper surface of the electric wire connector housing 911 is formed on the upper part of the front end wall defining the front surface of the fitting concave part 813 of the board connector. It fits in the insertion part 814. Moreover, the lock convex part 916 formed in the side part 915 of the housing 911 of an electric wire connector engages with the lock convex part 816 formed in the side part 815 of the fitting recessed part 813 of a board | substrate connector. Thereby, the fitting state of an electric wire connector and a board | substrate connector is maintained.

JP 2004-055485 A

  However, in the conventional wire-to-board connector, since the lock projection 916 of the wire connector is formed only at a location near the rear end of the housing 911, the wire 991 is in a state where the wire connector and the board connector are fitted. When an external force is applied through the connector, the fitting between the wire connector and the board connector is released, and the terminal 951 of the wire connector and the terminal 851 of the board connector may become non-contact.

  Further, when the operator performs the operation of releasing the fitting between the electric wire connector and the board connector, the electric wire connector housing 911 is accommodated in the fitting concave portion 813 of the board connector, and there is no part to hang fingers or the like. Inevitably, the electric wire 991 is gripped and the electric wire connector is pulled upward. Therefore, a load is applied to the connection portion between the electric wire 991 and the electric wire 991 and the electric wire connector, and the electric wire 991 or the connection portion between the electric wire 991 and the electric wire connector may be damaged.

  The present invention solves the above-described conventional problems and can prevent the fitting state between the first connector and the second connector from being unnecessarily released, has a simple configuration, and has a small number of parts. An object is to provide a connector that is easy to manufacture, low in cost, and high in reliability.

  Therefore, in the connector of the present invention, the first connector including a first housing made of an insulating material, a first terminal loaded in the first housing, and made of an insulating material, A connector that includes a second housing that fits into the first housing, and a second connector that is loaded in the second housing and contacts the first terminal, wherein the first terminal is A main body fixed to the first housing, wherein the first housing accommodates a first lock portion that locks the second housing fitted to the first housing, and a main body portion of the first terminal. A terminal body housing space to be fixed, and at least one of the first lock portions is opposite to the unlocking direction by the body portion of the first terminal housed and fixed in the terminal body housing space. Direction preload is imparted.

  In another connector of the present invention, the first lock portion is disposed near a pair of left and right first front lock portions disposed near the front end of the first housing, and near the rear end of the first housing. And a pair of left and right first rear lock portions.

  In still another connector of the present invention, the first housing further includes a pair of left and right first terminal holding portions extending in the front-rear direction and a bottom plate that connects at least a part of the lower portion of the first terminal holding portion. Each of the first terminal holding portions, and each of the second housings in a fitting space defined on three sides by the pair of left and right first terminal holding portions and a bottom plate portion. Is received and fitted.

  In still another connector of the present invention, the pair of left and right first front lock portions and the pair of left and right first rear lock portions are closer to the front end and rear end of the pair of left and right first terminal holding portions, respectively. The terminal main body accommodating space is a space extending in the front-rear direction formed in the first terminal holding portion, and the front-rear length of the main body portion of the first terminal is It is more than the front and rear length of the terminal body housing space.

  In still another connector of the present invention, the first terminal holding portion further includes a central portion, and a front wall portion and a rear wall portion extending forward and backward from the central portion, The bottom plate portion is connected to the lower portion, the first front lock portion and the first rear lock portion are disposed on the front wall portion and the rear wall portion, respectively, and the rear wall portion is more than the front wall portion. Low rigidity.

  In still another connector according to the present invention, when the first connector is mounted on the surface of the board, the lower surface of the first housing faces the surface of the board, and the second terminal has a terminal end of the wire. And the electric wire extends rearward from the second housing, and the second housing includes a second lock portion that engages with the first lock portion.

  In still another connector of the present invention, the second housing further includes a main body portion including a front wall portion, and when the second housing is engaged with the first housing, the front wall portion is the first housing. And a gap is formed between the lower surface of the front wall portion and the surface of the substrate.

  In still another connector of the present invention, the second terminal further includes a wire gripping leg portion that grips the wire, and a contact portion that contacts the first terminal, and the contact portion is the first terminal. The at least one of the electric wire gripping legs is pressed and grips the electric wire more strongly.

  According to the present invention, the fitting state between the first connector and the second connector can be prevented from being unnecessarily released, the configuration is simplified, the number of parts is reduced, the manufacturing is facilitated, and the cost is reduced. The reliability can be improved by lowering.

It is the perspective view of the 1st connector before fitting in the embodiment of the present invention, and the 2nd connector, and it is the figure seen from the front diagonal upper part. It is the perspective view of the 1st connector in embodiment of this invention, and is the figure seen from the front diagonally upward. It is the perspective view of the 1st connector in embodiment of this invention, and is the figure seen from back diagonally upward. It is a top view of the 1st housing of the 1st connector in an embodiment of the invention. It is a perspective view of the 1st terminal of the 1st connector in an embodiment of the invention, and is a figure seen from the front slanting upper part. It is a top view of the 1st connector in an embodiment of the invention. It is the perspective view of the 2nd connector in embodiment of this invention, and is the figure seen from the front diagonally upward. It is the perspective view of the 2nd connector in embodiment of this invention, and is the figure seen from front diagonally downward. It is a perspective view of the 2nd terminal of the 2nd connector in an embodiment of the invention, (a) is a figure showing the state before performing bending processing, and (b) is from the front slanting lower side of the completed 2nd terminal. It is the figure which it saw. It is a perspective view of the conventional wire-to-board connector, (a) is a figure which shows the state before fitting, (b) is a figure which shows the state after fitting.

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

  FIG. 1 is a perspective view of a first connector and a second connector before mating according to an embodiment of the present invention, and is a view seen from diagonally forward. FIG. 2 is a perspective view of the first connector according to an embodiment of the present invention. FIG. 3 is a perspective view of the first connector according to the embodiment of the present invention, FIG. 3 is a perspective view of the first connector according to the embodiment of the present invention, and is a diagram of the first connector viewed from diagonally above. FIG. FIG. 5 is a perspective view of the first terminal of the first connector according to the embodiment of the present invention, and is a view seen obliquely from the upper front.

  In the figure, 1 is a first connector as a board connector that is one of the wire-to-board connectors as a connector in the present embodiment, and as a wire connector that is the other of the wire-to-board connectors as a connector in the present embodiment. The second connector 101 is fitted. The first connector 1 is a surface mount type connector mounted on the surface of the substrate 91. The second connector 101 is a connector connected to the terminal ends of the plurality of electric wires 191. The substrate 91 is, for example, a printed circuit board, a flexible flat cable (FFC), a flexible printed circuit (FPC), or the like used for an electronic device or the like. It may be. In the example shown in FIG. 1, the number of the electric wires 191 is two, but the number of the electric wires 191 can be arbitrarily changed. For example, the number may be one, or may be three or more. Good.

  The wire-to-board connector in the present embodiment includes the first connector 1 and the second connector 101, and electrically connects the electric wire 191 and the substrate 91. In the present embodiment, the electric wire 191 is a part of the power supply line, and the end of the electric wire 191 opposite to the second connector 101 is connected to a power source (not shown), and the first connector 1 and the first connector 2 The connector 101 is described as a connector for connecting the electric wire 191 to the power supply line of the substrate 91. However, the electric wire 191 may be a part of a signal line, and the first connector 1 and the second connector The connector 101 can also be used as a connector for connecting the electric wire 191 to the signal line of the substrate 91. Furthermore, both the first connector 1 and the second connector 101 have, for example, a longitudinal length of about 3 [mm], a width of about 4 to 5 [mm], and a thickness of about 1.2 to 1.5 [mm]. However, the dimensions can be changed as appropriate.

  Further, in the present embodiment, expressions indicating directions such as upper, lower, left, right, front, rear, etc. used for explaining the configuration and operation of each part of the first connector 1 and the second connector 101 are as follows: It is not absolute but relative, and is appropriate when each part of the first connector 1 and the second connector 101 has the posture shown in the figure. It should be interpreted according to changes.

  The first connector 1 is integrally formed of a resin such as a synthetic resin, which is an insulating material, and includes a first housing 11 as a housing having a generally flat overall shape, and the first housing. 11 and a first terminal 51 as a metal terminal loaded. In the example shown in the figure, assuming that the power supply line is composed of one plus line and one minus line, the number of the first terminals 51 is two. The number of one terminal 51 can be arbitrarily changed according to the number of power supply lines.

  As shown in the figure, the first housing 11 has a block-like overall shape extending in the front-rear direction, and a pair of left and right first terminal holding portions having a substantially crown-like shape in plan view. Side portion 12 and a bottom plate portion 14 having a flat plate shape and connecting at least a part of lower portions of the left and right side portions 12. The space defined by the left and right side portions 12 and the bottom plate portion 14 functions as a fitting space 13 that houses the second connector 101 that is a mating connector. The fitting space 13 is a space that is open at the top, front, and rear.

  Here, the direction in which the electric wire 191 extends from the second connector 101 is referred to as the rear, the opposite direction is referred to as the front, and the direction in which the second connector 101 enters the fitting space 13 is referred to as the upper. I will do it. Further, as shown in FIG. 4, the first housing 11 has a symmetrical shape with respect to a center line CL extending in the front-rear direction. The lower surface of the first housing 11, that is, the mounting surface facing the surface of the substrate 91 is substantially flat.

  Each side portion 12 includes a central portion 21, a front wall portion 22 f as a wall portion that extends forward and rearward from the central portion 21, and has a substantially hook-shaped or L-shaped shape in plan view. And a rear wall portion 22r. The front wall portion 22f and the rear wall portion 22r include a front arm portion 23f and a rear arm portion 23r as arms that linearly extend forward and rearward from the central portion 21, and the front arm portion 23f and A front end wall portion 24f and a rear end wall portion 24r which are connected so as to be orthogonal to the front end and the rear end of the rear arm portion 23r and extend toward the outside in the width direction of the first housing 11, A front return wall portion 25f and a rear return wall portion 25r are connected as orthogonal to the outer ends of the front end wall portion 24f and the rear end wall portion 24r, and extend linearly rearward and forward. Contains.

  On the outer side in the width direction of the first housing 11 in each side portion 12, there is a terminal body accommodating space 17 as a space defined on three sides by the central portion 21, the front wall portion 22f, and the rear wall portion 22r. The inner surface in the width direction of the first housing 11 in the terminal body housing space 17 is a side outer surface 17a as an outer surface of the central portion 21, the front wall portion 22f, and the rear wall portion 22r, and is substantially flat. . Moreover, the upper surface (surface opposite to the mounting surface) of each side portion 12 is also substantially flat.

  A front fixing portion receiving groove 26f and a rear fixing portion are accommodated as a fixing portion receiving groove into which the front fixing portion 58f and the rear fixing portion 58r of the first terminal 51 enter at the front end and the rear end of the terminal body receiving space 17. A groove 26r is formed. The front fixing portion receiving groove 26f is a groove-like space extending in the up-and-down direction, which is delimited on three sides by the front arm portion 23f, the front end wall portion 24f, and the front return wall portion 25f, with the rear and upper sides being open. The front end surface, that is, the bottom surface of the groove is a front abutting portion 26fe with which the front end 58fe of the front fixing portion 58f abuts. The rear fixing portion receiving groove 26r is defined by a rear arm portion 23r, a rear end wall portion 24r, and a rear return wall portion 25r, and is a groove-like space extending in the vertical direction with the front and upper sides open. The rear end surface, that is, the bottom surface of the groove is a rear abutting portion 26re with which the rear end 58re of the rear fixing portion 58r abuts.

  Furthermore, the surfaces of the front arm portion 23f and the rear arm portion 23r facing the center in the width direction of the first housing 11 are formed in the second housing 111 that is a housing of the second connector 101 that enters the fitting space 13. They are a front inner side surface 15f and a rear inner side surface 15r as inner side surfaces opposed to the outer side surfaces (tip surfaces) of the second front locking unit 116f and the second rear locking unit 116r, which are the second locking units. In the vicinity of the upper ends of the front inner side surface 15f and the rear inner side surface 15r, a first front lock portion 16f and a first rear lock portion 16r as first lock portions projecting toward the center in the width direction of the first housing 11 are provided. Is formed. The first front lock portion 16f and the first rear lock portion 16r are a second front lock portion 116f and a second rear lock portion 116r formed in the second housing 111 of the second connector 101 that has entered the fitting space 13. Engage with.

  The central portion 21 as a whole is a portion having a larger thickness dimension (dimension in the width direction of the first housing 11) than the front arm portion 23f and the rear arm portion 23r, and the front arm portion 23f and the rear arm portion 23r. It protrudes toward the center in the width direction of the first housing 11. However, the central portion 21 is divided in the front-rear direction by forming an arm portion accommodating recess 27 in which the curved arm portion 56 of the first terminal 51 is accommodated near the center. The arm housing recess 27 is a recess shaped like a rectangular vertical hole dug down from the upper surface of the central portion 21, and the front and rear surfaces are divided by the front and rear portions of the central portion 21. The bottom surface is defined, for example, below the top surface of the bottom plate portion 14, but may be positioned above the top surface of the bottom plate portion 14 or at the same height. And the surface which faced the center of the width direction of the 1st housing 11 in the said arm part accommodation recessed part 27 is open | released. The surface of the arm housing recess 27 facing the outside in the width direction of the first housing 11 is defined by a thin wall portion 21a.

  The thin wall portion 21 a is a portion that connects the portions divided before and after the central portion 21, and is a portion that covers the curved connecting portion 54 of the first terminal 51. For this reason, the upper surface of the thin wall portion 21 a is drawn below the upper surface of the side portion 12. A front auxiliary fixing portion serving as an auxiliary fixing portion receiving groove into which the front end portion and the rear end portion of the auxiliary fixing portion 55 of the first terminal 51 enter the width direction center side of the first housing 11 of the thin wall portion 21a. An accommodation groove 29f and a rear auxiliary fixing portion accommodation groove 29r are formed.

  The central portion 21 includes a front guide portion 28 f and a rear guide portion 28 r that protrude toward the center in the width direction of the first housing 11. The front guide portion 28 f and the rear guide portion 28 r function as guide portions that guide the main body portion 113 of the second housing 111 of the second connector 101 that enters the fitting space 13. A recess 113 a is formed on the front surface of the main body 113.

  A terminal guide recess 18 is formed between the front guide portion 28f and the rear guide portion 28r. The terminal guide recess 18 is recessed relatively outward in the width direction of the first housing 11. The terminal guide recess 18 is defined in three directions by a central portion 21, a front guide portion 28f, and a rear guide portion 28r, and extends in a vertical direction in which the surface facing the center in the width direction of the first housing 11 and the upper side are opened. The arm housing recess 27 is open in most of the outer surface in the width direction of the first housing 11. Then, at least the top portion 57a of the contact portion 57 connected to the curved arm portion 56 of the first terminal 51 accommodated in the arm portion accommodating recess 27 protrudes into the terminal guide recess 18, and the first connector 1 and the first connector 1 When the two connectors 101 are fitted, they come into contact with the contact portions 157 of the second terminals 151 that are the terminals of the second connector 101.

  In addition, it is desirable that no part of the first terminal 51 including the top portion 57a protrudes to the center in the width direction of the first housing 11 from the inner side surfaces (tip surfaces) of the front guide portion 28f and the rear guide portion 28r. . Further, it is desirable that no part of the first terminal 51 protrudes upward from the upper surface of the side part 12. This prevents the operator's fingers and the like from being caught on the first terminal 51 during the fitting operation or the like, so that the first terminal 51 is not damaged.

  The bottom plate portion 14 has a size in the front-rear direction smaller than the size in the front-rear direction of the side portion 12, its front end is located behind the front end of the side portion 12, and its rear end is forward of the rear end of the side portion 12. It is connected to the lower part of the side part 12 so that it may be located in. Therefore, the fitting space 13 includes a front space 13 f that is a front portion of the bottom plate portion 14 and a rear space 13 r that is a rear portion of the bottom plate portion 14. Since the bottom plate portion 14 does not exist below the front space 13f and the rear space 13r, when the first connector 1 is mounted on the surface of the substrate 91, the surface is defined by the surface of the substrate 91. In the example shown in the figure, a convex portion 14 a protruding forward is formed at the center in the width direction at the front end of the bottom plate portion 14. Because of the presence of the convex portion 14a, the front-rear direction of the first housing 11 can be recognized with certainty, thereby preventing erroneous fitting in the fitting work between the first connector 1 and the second connector 101. be able to.

  The first terminal 51 in the present embodiment is a member that is integrally formed by bending and punching a conductive metal plate, and is fixed to the first housing 11 as shown in FIG. A flat plate-like main body portion 52, a tail portion 53 connected to the lower end of the main body portion 52, a curved connecting portion 54 having one end connected to the upper end of the main body portion 52, and the other of the curved connecting portion 54 An auxiliary fixing portion 55 having an upper end connected to the end; a curved arm portion 56 having one end connected to the lower end of the auxiliary fixing portion 55; and a contact portion 57 having a lower end connected to the other end of the curved arm portion 56; Is provided. The main body 52 includes a front fixing portion 58f and a rear fixing portion 58r formed at the front end and the rear end thereof.

  Note that FIG. 5 corresponds to the drawing in which the drawing of the first housing 11 is deleted from FIG. The curved connecting portion 54, the auxiliary fixing portion 55, the curved arm portion 56, and the contact portion 57 are disposed near the rear end of the main body portion 52, not in the center in the front-rear direction of the main body portion 52. Therefore, as shown in FIG. 5, the first terminal 51 loaded on the right side of the first housing 11 and the first terminal 51 loaded on the left side are different in shape.

  The tail portion 53 is a flat plate member that is bent and connected so as to be substantially orthogonal to the main body portion 52, and is soldered to a connector electrode portion 93 such as a conductive pad formed on the surface of the substrate 91. Etc. are electrically connected and fixed by, for example. As a result, the first terminal 51 is connected to a power supply conductive trace (not shown) of the substrate 91 formed to be connected to the connector electrode portion 93.

  The curved connecting portion 54 is a plate material that is curved by approximately 180 degrees and has a substantially U-shaped side surface. As a result, the auxiliary fixing portion 55 is substantially parallel to the main body portion 52 and faces the main body portion 52. The auxiliary fixing portion 55 is a plate-like member. When the first terminal 51 is loaded in the first housing 11, the front end portion and the rear end portion of the auxiliary fixing portion 55 are front auxiliary fixing portion receiving grooves. 29f and the rear auxiliary fixing portion receiving groove 29r are received and fixed. In this case, the irregularities formed at the front end portion and the rear end portion of the auxiliary fixing portion 55 bite into the bottom surfaces of the front auxiliary fixing portion receiving groove 29f and the rear auxiliary fixing portion receiving groove 29r. Holds securely.

  The curved arm portion 56 is a plate material having a substantially U-shaped side surface and curved approximately 180 degrees, and is a member that functions as a leaf spring. The curved arm portion 56 is an end opposite to the end connected to the auxiliary fixing portion 55. Is elastically displaced as a free end. Accordingly, the contact portion 57 connected to the free end of the curved arm portion 56 can be elastically displaced in the width direction of the first housing 11 in a state where the first terminal 51 is loaded in the first housing 11. is there.

  The contact portion 57 is a portion protruding in a direction away from the main body portion 52 having a substantially lateral shape on the side surface, and a top portion 57a which is the most protruding portion, and an upper portion so as to approach the main body portion 52 from the top portion 57a. And an inclined portion 57b extending obliquely. In a state where the first terminal 51 is loaded in the first housing 11, at least the top portion 57 a of the contact portion 57 protrudes into the terminal guide recess 18, and when the first connector 1 and the second connector 101 are fitted, The contact portion 157 of the second terminal 151 that is the terminal of the two connector 101 comes into contact. In this case, since the contact portion 57 is pressed against the contact portion 157 of the second terminal 151 by the function of the curved arm portion 56 as a spring, conduction between the first terminal 51 and the second terminal 151 is reliably maintained. . Since the inclined portion 57b is located above the top portion 57a, the second terminal 151 is smoothly guided by the inclined portion 57b when the first connector 1 and the second connector 101 are fitted.

  The main body portion 52 including the front fixing portion 58f and the rear fixing portion 58r is a member formed to be a single plate. That is, both surfaces of the main body portion 52 including the front fixing portion 58f and the rear fixing portion 58r are each one flat surface. In the state where the first terminal 51 is loaded in the first housing 11, the main body 52 is accommodated in the terminal main body accommodating space 17, and the front end of the front fixing portion 58f and the rear end of the rear fixing portion 58r are the front. The fixed portion receiving groove 26f and the rear fixed portion receiving groove 26r are received and fixed. In this case, the irregularities formed at the front end 58fe of the front fixing portion 58f and the rear end 58re of the rear fixing portion 58r are the front contact portion 26fe of the front fixing portion receiving groove 26f and the rear contact portion of the rear fixing portion receiving groove 26r. Since it bites into 26re, the main body 52 is securely held.

  The dimension in the front-rear direction of the main body 52, that is, the dimension from the front end 58fe of the front fixing part 58f to the rear end 58re of the rear fixing part 58r is the dimension in the front-rear direction of the terminal main body accommodating space 17, that is, front fixing. It is more than the dimension from the front contact part 26fe of the part accommodating groove 26f to the rear contact part 26re of the rear fixed part accommodating groove 26r. Accordingly, when the first terminal 51 is loaded into the first housing 11, distortion (distortion) due to the main body portion 52 occurs in the side portion 12 in which the terminal main body accommodating space 17 is formed.

  Next, the distortion generated in the side portion 12 will be described.

  FIG. 6 is a top view of the first connector in the embodiment of the present invention.

  In the present embodiment, the first terminal 51 is made of a metal plate, the first housing 11 is made of resin, and the dimension of the body portion 52 of the first terminal 51 in the front-rear direction is that of the terminal body housing space 17 of the first housing 11. Since it is larger than the dimension in the front-rear direction, when the first terminal 51 is loaded in the first housing 11 and the main body 52 is accommodated in the terminal main body accommodating space 17, the side on which the terminal main body accommodating space 17 is formed. The part 12 is distorted, and the left and right side parts 12 are deformed as shown in FIG.

  More specifically, the dimension from the front end 58fe of the front fixing portion 58f to the rear end 58re of the rear fixing portion 58r is determined from the front abutting portion 26fe of the front fixing portion receiving groove 26f to the rear abutting portion 26re of the rear fixing portion receiving groove 26r. Therefore, the rear contact portion 26re is mainly pressed rearward. As a result, the connection portion between the rear wall portion 22r and the central portion 21 is mainly distorted, and the first rear lock portion 16r is displaced toward the center in the width direction of the first housing 11 around the connection portion. The side portion 12 is deformed so that the rear wall portion 22r rotates.

  As can be seen from FIGS. 4 and 6, the rear arm portion 23r, which is a portion connected to the central portion 21 in the rear wall portion 22r, is more in the left-right direction (of the first housing 11 than the front arm portion 23f of the front wall portion 22f). The dimension in the width direction is small, that is, the width is narrow. In addition, the bottom plate portion 14 is not connected to the lower portion of the rear arm portion 23r, whereas the bottom plate portion 14 is connected to the lower portion in the range from the rear end of the central portion 21 to the middle of the front arm portion 23f. Yes. Further, with respect to the front-rear direction, the position of the rear contact portion 26re of the rear fixing portion receiving groove 26r is the position of the portion connected to the bottom plate portion 14 of the rear arm portion 23r and the connection portion between the rear wall portion 22r and the central portion 21. In contrast, the position of the front contact portion 26fe of the front fixing portion receiving groove 26f is substantially the same as the position of the portion connected to the bottom plate portion 14 of the front arm portion 23f. Therefore, the left and right rear wall portions 22r are less rigid than the front wall portion 22f, and are easily deformed so as to rotate around the connection portion with the central portion 21.

  Therefore, the main body portion 52 of the first terminal 51 having a dimension in the front-rear direction larger than the dimension in the front-rear direction of the terminal main body accommodating space 17 of the first housing 11 is inserted into the terminal main body accommodating space 17, and the front fixing portion accommodating groove 26f. When the distance between the front contact portion 26fe of the rear portion and the rear contact portion 26re of the rear fixed portion receiving groove 26r is widened, the main body of the first terminal 51 is mainly at the connection portion between the rear wall portion 22r and the central portion 21. As shown in FIG. 6, distortion due to stress from the portion 52 occurs, and the rear wall portion 22 r is deformed so as to rotate around the connection portion.

  Note that FIG. 6 is exaggerated for easy understanding. Therefore, the deformation of the side portion 12 such that the rear wall portion 22r rotates may be visually invisible. However, even when the deformation as shown in FIG. 6 is not visible, distortion due to the stress from the main body 52 of the first terminal 51 occurs at the connection portion between the rear wall portion 22r and the central portion 21. In other words, regardless of whether or not the deformation as shown in FIG. 6 is visible, the first rear lock portion 16r is displaced toward the center in the width direction of the first housing 11 by the main body portion 52 of the first terminal 51. A preload (preload) in the direction to be applied is applied to the rear wall portion 22r including the first rear lock portion 16r. In other words, a preload in the direction opposite to the unlocking direction is applied to the first rear lock portion 16r by the main body portion 52 accommodated and fixed in the terminal main body accommodating space 17.

  Therefore, the first rear lock portion 16r has high rigidity in the direction toward the outer side in the width direction of the first housing 11, and is difficult to be displaced. That is, it is difficult for the left and right first rear lock portions 16r to be spaced apart from each other. As a result, it becomes difficult to disengage the second connector 101 that has entered the fitting space 13 from the second rear lock portion 116r of the second housing 111.

  Next, the configuration of the second connector 101 will be described.

  FIG. 7 is a perspective view of the second connector in the embodiment of the present invention as seen from the front diagonally upward, and FIG. 8 is a perspective view of the second connector in the embodiment of the present invention from the diagonally downward front. FIG. 9 is a perspective view of the second terminal of the second connector in the embodiment of the present invention. In FIG. 9, (a) is a diagram showing a state before bending, and (b) is a diagram viewed from the front diagonally below the completed second terminal.

  The second connector 101 is integrally formed of a resin such as a synthetic resin, which is an insulating material, and has a second housing 111 having an overall shape like a substantially flat rectangular parallelepiped, and is loaded in the second housing 111. And a second terminal 151 as a metal terminal. In the example shown in the figure, similarly to the first terminal 51, assuming that the power supply line is composed of one line on the positive side and one line on the negative side, the second terminal 151 is Although the number is two, the number of second terminals 151 can be arbitrarily changed according to the number of power supply lines. Moreover, illustration of the electric wire 191 is omitted.

  As shown in the drawing, the second housing 111 includes a main body portion 113 having an overall shape like a flat rectangular parallelepiped, and a substantially rectangular flat plate top plate portion 114 connected to the upper surface of the main body portion 113. Is provided. The top plate 114 has a front-rear direction dimension that is substantially the same as the front-rear direction dimension of the main body part 113, and its front end and rear end are substantially at the same position as the front end and rear end of the main body part 113. The dimension in the width direction is larger than the dimension in the width direction of the main body 113, and both side ends thereof protrude outward from both side ends of the main body 113. Therefore, at the time of releasing the fitting between the first connector 1 and the second connector 101, for example, a tip such as a small screwdriver or the like, the tip of a jig or the like is removed from both ends of the main body 113. Since it can be hooked on the lower surface of the top plate part 114 protruding in the direction, the operator can easily perform the work of releasing the fitting between the first connector 1 and the second connector 101. Similarly, the tip of the tool, jig or the like can be hooked on a recess 113 a formed on the front surface of the main body 113.

  Then, on the lower surface side of the main body portion 113, that is, on the fitting surface side (upper side in FIG. 8), two elongated groove-like electric wire receiving recesses 112 extending in the front-rear direction are formed in parallel to each other. Has been. Each electric wire housing recess 112 has a lower surface and a rear end open, and an upper surface, a front end, and both sides are defined by a top plate portion 114 and a front wall portion 121c, a central wall portion 121a, and a side wall portion 121b included in the main body portion 113. Each electric wire 191 is accommodated.

  Front leg housing as a leg housing groove for housing the front wire gripping leg portion 155f and the rear wire gripping leg portion 155r of the second terminal 151 on the side surface facing the wire housing recess 112 in the central wall portion 121a and the side wall portion 121b. A groove 122f and a rear leg receiving groove 122r are formed. The front leg housing groove 122f and the rear leg housing groove 122r are rectangular groove-shaped recesses extending upward from the lower surfaces of the central wall portion 121a and the side wall portion 121b. It is open. Since the rear leg receiving groove 122r also receives the connecting portion 156 of the second terminal 151, the groove width (dimension in the front-rear direction) is formed larger than the front leg receiving groove 122f.

  Further, a contact portion accommodation slit 127 for accommodating the contact portion 157 of the second terminal 151 is formed in the side wall portion 121b. The contact portion accommodation slit 127 is an elongated slit-like recess that extends upward from the lower surface of the side wall portion 121b and penetrates the side wall portion 121b in the width direction of the second housing 111, and is formed in the rear leg accommodation groove 122r. It is formed in a corresponding position and communicates the outer surface of the side wall 121b and the rear leg receiving groove 122r.

  The main body 113 includes a front end wall 124f and a rear end wall 124r as end walls extending outward in the width direction of the second housing 111. The front end wall portion 124f and the rear end wall portion 124r are connected to the front end and the rear end of the side wall portion 121b, and protrude outward in the width direction of the second housing 111 from the outer surface of the side wall portion 121b. Therefore, a guide recess 128 that is recessed relatively inward in the width direction of the second housing 111 is formed between the front end wall portion 124f and the rear end wall portion 124r. In the example shown in the figure, the front surface of the front wall portion 121c and the front surface of the front end wall portion 124f are flush with each other.

  Further, the outer surface in the width direction of the second housing 111 in the front end wall portion 124f and the rear end wall portion 124r is a first housing 11 formed in the first housing 11 of the first connector 1 fitted to the second connector 101. They are a front outer surface 115f and a rear outer surface 115r as outer surfaces facing the inner surface (tip surface) of the front lock portion 16f and the first rear lock portion 16r. Further, in the vicinity of the lower ends (upper ends in FIG. 8) of the front outer surface 115f and the rear outer surface 115r, a second front lock portion 116f as a second lock portion protruding toward the outer side in the width direction of the second housing 111, and A second rear lock portion 116r is formed. The second front lock portion 116f and the second rear lock portion 116r engage with the first front lock portion 16f and the first rear lock portion 16r formed in the first housing 11 of the first connector 1.

  The guide recess 128 is defined in three directions by a side wall 121b, a front end wall 124f, and a rear end wall 124r, and extends in a vertical direction in which a surface facing the outer side in the width direction and a lower side of the second housing 111 are opened. It is an existing groove-like space. A front guide portion 28f and a rear guide portion 28r formed in the first housing 11 of the first connector 1 enter the guide recess 128, whereby the first connector 1 and the second connector 101 are fitted. Thus, the main body 113 is guided. A guide plane 128a, which is an outer surface of the side wall 121b in the guide recess 128, is a surface facing the inner side surfaces (tip surfaces) of the front guide portion 28f and the rear guide portion 28r of the first housing 11.

  A contact portion receiving slit 127 is opened in the guide plane 128a, and serves as at least a side end portion of the contact portion 157 connected to the connecting portion 156 of the second terminal 151 accommodated in the contact portion accommodating slit 127. The edge portion 157 a protrudes into the guide recess 128. In addition, the terminal control convex part 118 is formed in the front side and back side of the contact part accommodation slit 127 in the said guide plane 128a. The terminal restricting protrusion 118 is a protrusion that protrudes outward in the width direction of the second housing 111 from the guide plane 128a, and is an elongated protrusion that extends in the vertical direction along the opening of the contact portion accommodating slit 127. . The edge portion 157 a of the contact portion 157 of the second terminal 151 protrudes outward in the width direction of the second housing 111 from the side surface 118 a of the terminal regulating convex portion 118. The terminal restricting convex portion 118 enters the terminal guide concave portion 18 formed in the first housing 11 of the first connector 1, so that when the first connector 1 and the second connector 101 are fitted, the main body portion 113 is guided.

  Further, when the first connector 1 and the second connector 101 are fitted, the edge portion 157a of the contact portion 157 of the second terminal 151 is contacted with the contact portion 57 of the first terminal 51 of the first connector 1, specifically, , Contact with the top portion 57a of the contact portion 57 protruding into the terminal guide recess 18. At this time, the contact portion 157 of the second terminal 151 is displaced toward the center in the width direction of the second housing 111 by being pressed by the contact portion 57 of the first terminal 51. If the portion 57 contacts the side surface 118 a of the terminal restricting convex portion 118, it will not be displaced further toward the center in the width direction of the second housing 111. That is, the displacement of the contact portion 157 of the second terminal 151 in the center direction in the width direction of the second housing 111 is restricted by the terminal restricting convex portion 118, and the amount thereof is determined by the protruding amount from the side surface 118a of the edge portion 157a. Never exceed.

  In addition, it is desirable that no part of the second terminal 151 including the edge portion 157a protrudes outward in the width direction of the second housing 111 from the front outer surface 115f and the rear outer surface 115r. In addition, it is desirable that any part of the second terminal 151 does not protrude downward from the lower surfaces of the central wall part 121a and the side wall part 121b. This prevents the operator's fingers and the like from being caught on the second terminal 151 during the fitting operation or the like, so that the second terminal 151 is not damaged.

  An electric wire holding portion 131 including a flange portion 131a is connected to the lower surface of the central wall portion 121a and the inner surface in the width direction of the second housing 111 at the rear end wall portion 124r. Each flange 131a is positioned below each wire receiving recess 112 in the vicinity of the rear end of the main body 113, and extends obliquely upward from both sides in the width direction of each wire receiving recess 112 toward the center in the width direction. It is arranged like this. And although the front-end | tip of the collar part 131a mutually opposed below each electric wire accommodation recessed part 112 is mutually spaced apart, the space | interval is a dimension smaller than the outer diameter of the electric wire 191 accommodated in the electric wire accommodation recessed part 112. It is set to be. Each flange 131a is elastically deformable.

  As can be understood from the shape of the flange 131a as shown in FIG. 8, the electric wire 191 is relatively moved from the lower side to the upper side of the second housing 111, and the corresponding electric wire receiving concave portion 112 is moved. When making it approach, the said electric wire 191 can pass easily between the collar parts 131a which mutually oppose below the said electric wire accommodation recessed part 112. FIG. However, since the electric wire 191 once accommodated in the electric wire accommodating recess 112 is blocked by the tips of the flanges 131a facing each other, it is difficult to relatively move toward the lower side of the second housing 111. As a result, the detachment of the electric wire 191 from the electric wire housing recess 112 is prevented.

  The second terminal 151 in the present embodiment is a member integrally formed by bending and punching a conductive metal plate, and as shown in FIG. A front wire gripping portion 153f as a wire gripping portion connected to one end of the main body portion 152, and a rear wire gripping portion as a wire gripping portion connected to the other end of the main body portion 152 via a connecting portion 156. 153r and a contact portion 157 connected to the side end of the connecting portion 156.

  The front wire gripping portion 153f is a portion having a substantially tuning fork (s) shape or fork shape, and a front wire gripping leg portion 155f as a pair of wire gripping leg portions whose base portions extend toward the tip. , And a front electric wire holding space portion 154f that is a slit-like space formed between the front electric wire gripping leg portions 155f. The rear wire gripping portion 153r is a portion having substantially the same shape as the front wire gripping portion 153f, and the rear wire gripping leg portion 155r as a pair of wire gripping leg portions, and the rear wire gripping leg portions 155r. The rear wire holding space portion 154r that is a slit-like space formed between the rear wire holding leg portion 155r and the rear wire holding leg portion 155r is connected to the connecting portion 156. Further, the connecting portion 156 includes a connecting space portion 158 formed at the center thereof. The connecting space portion 158 is a space communicating with the rear electric wire holding space portion 154r, but is formed wider than the rear electric wire holding space portion 154r.

  9B, the front electric wire gripping portion 153f is bent so as to be substantially orthogonal to the main body portion 152, and the connecting portion 156 is substantially orthogonal to the main body portion 152. And it is bent so as to extend in the same direction as the front electric wire gripping portion 153f, and the rear electric wire gripping portion 153r is bent about 180 degrees with respect to the connecting portion 156 and overlaps the connecting portion 156. . Accordingly, the front wire gripping portion 153f and the rear wire gripping portion 153r are opposed to each other with a space in the front-rear length of the main body portion 152, and the contact portion 157 is parallel to the rear wire gripping portion 153r and to the side of the rear wire gripping portion 153r. Located outside. Moreover, the edge part 157a of the contact part 157 is extended in the same direction as the back electric wire holding leg part 155r.

  Note that FIG. 9B corresponds to a case where the drawing of the second housing 111 is deleted from FIG. In the second terminal 151 loaded on the right side of the second housing 111, the contact portion 157 is connected to the right side end of the connecting portion 156, and in the second terminal 151 loaded on the left side, the contact portion 157 is connected to the connecting portion 156. Is connected to the left side edge. That is, the shape of the second terminal 151 loaded on the right side is different from that of the second terminal 151 loaded on the left side.

  When the second terminal 151 is loaded in the second housing 111, the main body 152 faces the bottom surface of the wire receiving recess 112, and the front wire holding leg 155f and the rear wire holding leg 155r are connected to the front leg holding groove 122f and the rear. It is accommodated in the leg accommodating groove 122r, and the contact portion 157 is accommodated in the contact portion accommodating slit 127. In this case, the irregularities formed on the outer ends of the front wire gripping leg portion 155f and the rear wire gripping leg portion 155r bite into the bottom surfaces of the front leg housing groove 122f and the rear leg housing groove 122r. The rear wire gripping part 153r is securely fixed.

  The widths of the front electric wire holding space portion 154f and the rear electric wire holding space portion 154r are preferably about the same as or smaller than the outer diameter of a core wire (not shown) included in the electric wire 191. Thereby, when the corresponding part in the electric wire 191 accommodated in the electric wire accommodation recessed part 112 is pushed into the front electric wire holding space part 154f and the rear electric wire holding space part 154r, the insulating coating of the electric wire 191 becomes the front electric wire holding leg part 155f. The core wire of the electric wire 191 is electrically connected to the front electric wire holding leg portion 155f and the rear electric wire holding leg portion 155r.

  Further, when the first connector 1 and the second connector 101 are fitted, the contact portion 157 of the second terminal 151 is brought into contact with the contact portion 57 of the first terminal 51 of the first connector 1. It is pressed and displaced toward the center in the width direction. Such pressing force and displacement are transmitted from the contact portion 157 to the rear wire gripping leg portion 155r near the contact portion 157 in the rear wire gripping portion 153r via the connecting portion 156. Therefore, the rear wire gripping leg portion 155r is pressed and displaced toward the opposing rear wire gripping leg portion 155r, so that the core wire 191 is gripped more strongly from both sides by the rear wire gripping leg portion 155r. Thus, the electrical continuity with the rear wire gripping leg portion 155r is more reliably maintained.

  Next, an operation for fitting the first connector 1 and the second connector 101 having the above-described configuration will be described.

  Here, the first connector 1 is surface-mounted on the substrate 91 by being connected to the tail portion 53 of the first terminal 51 and the connector electrode portion 93 formed on the surface of the substrate 91 by soldering or the like. . The second connector 101 is connected to the end of the electric wire 191 by connecting the second terminal 151 to the end of the electric wire 191.

  Then, as shown in FIG. 1, the operator sets the upper surface (fitting surface) of the first connector 1 and the lower surface (fitting surface) of the second connector 101 to face each other. The second connector 101 is moved so as to approach the other side, and the main body 113 of the second housing 111 of the second connector 101 is moved into the fitting space 13 of the first housing 11 of the first connector 1. The first connector 1 and the second connector 101 are fitted.

  At this time, the front guide portion 28 f and the rear guide portion 28 r of the first housing 11 enter the guide recess 128 of the second housing 111 and guide the main body portion 113 of the second housing 111. Thereby, the relative positional relationship in the front-rear direction and the left-right direction of the second housing 111 with respect to the first housing 11 is defined, and the second housing 111 is displaced front-rear, left-right with respect to the first housing 11, that is, rattling. It is prevented.

  Further, the terminal restricting convex portion 118 of the second housing 111 enters the terminal guide recessed portion 18 of the first housing 11 to guide the main body 113 of the second housing 111, and from the side surface 118 a of the terminal restricting convex portion 118. The protruding edge portion 157 a of the contact portion 157 of the second terminal 151 is in contact with the top portion 57 a of the contact portion 57 protruding into the terminal guide recess 18. As a result, the first terminal 51 and the second terminal 151 are electrically connected. As a result, the electric wire 191 to which the second terminal 151 is connected and the tail portion 53 of the first terminal 51 are connected. The conductive trace connected to the connector electrode portion 93 on the substrate 91 is conducted.

  Here, since the edge portion 157 a extends in the vertical direction, when the main body portion 113 of the second housing 111 enters the fitting space 13 of the first housing 11, the top portion 57 a of the contact portion 57. Is moved along the edge portion 157a relatively upward from the lower end of the edge portion 157a while maintaining the state of being pressed and in contact with the edge portion 157a by the function of the curved arm portion 56 as a spring. It becomes. As described above, the top portion 57a and the edge portion 157a of the contact portion 57 slide with each other a long distance in the fitting direction with a high contact pressure, so that a high wiping effect can be obtained. It is possible to effectively remove foreign matters such as dust adhering to the surface and a film of impurities. Therefore, the contact resistance between the first terminal 51 and the second terminal 151 is reduced, and the electrical continuity between the first terminal 51 and the second terminal 151 is reliably maintained.

  Further, since the width of the edge portion 157a (the dimension in the front-rear direction of the second connector 101) is very narrow, the contact area when the top portion 57a and the edge portion 157a of the contact portion 57 slide relative to each other is reduced. . Therefore, the contact pressure during wiping is very high, and a very high wiping effect can be obtained.

  Further, since the edge portion 157 a is pressed by the top portion 57 a of the contact portion 57, the contact portion 157 is pressed toward the center in the width direction of the second housing 111 and displaced. Such pressing force and displacement are transmitted from the contact portion 157 to the rear wire gripping leg portion 155r near the contact portion 157 in the rear wire gripping portion 153r via the connecting portion 156. 155r is pressed and displaced toward the opposite rear wire gripping leg portion 155r. Accordingly, the core wire of the electric wire 191 is more strongly gripped from both sides by the rear wire gripping leg portion 155r, and the electrical conduction state with the rear wire gripping leg portion 155r is more reliably maintained. When the contact portion 157 is displaced and the edge portion 157a is substantially flush with the side surface 118a of the terminal restricting convex portion 118, the contact portion 57 contacts the side surface 118a of the terminal restricting convex portion 118. Further, there is no displacement toward the center in the width direction of the second housing 111, and the rear electric wire gripping leg portion 155r does not move further toward the opposite rear electric wire gripping leg portion 155r. Therefore, the core wire of the electric wire 191 is not gripped excessively from both sides by the rear wire gripping leg portion 155r, and is not damaged or broken due to excessively strong gripping.

  Furthermore, when the main body portion 113 of the second housing 111 enters the fitting space 13 of the first housing 11, a second front lock portion 116 f that is a second lock portion of the second housing 111 and a second rear lock. The portion 116r engages with the first front lock portion 16f and the first rear lock portion 16r, which are the first lock portions of the first housing 11. When the second front lock portion 116f and the second rear lock portion 116r are engaged with the first front lock portion 16f and the first rear lock portion 16r, at least one of the second housing 111 and the first housing 11 is used. The portion is elastically deformed, whereby the second front lock portion 116f and the second rear lock portion 116r and the first front lock portion 16f and the first rear lock portion 16r are relatively elastically displaced.

  As described above, since the preload in the direction opposite to the unlocking direction is applied to the first rear lock portion 16r, the first rear lock portion 16r has high rigidity and is elastically displaced when engaged with the second rear lock portion 116r. Hateful. Therefore, the operator is larger in order to engage the second rear lock portion 116r and the first rear lock portion 16r than to engage the second front lock portion 116f and the first front lock portion 16f. It is necessary to demonstrate power. On the other hand, since the operator receives a large resistance when engaging the second rear lock portion 116r and the first rear lock portion 16r, the operator can perceive the resistance as a large click feeling. Therefore, the operator can accurately recognize that the fitting between the first connector 1 and the second connector 101 has been completed.

  When the fitting between the first connector 1 and the second connector 101 is completed, the main body portion 113 of the second housing 111 is accommodated in the fitting space 13 of the first housing 11, and the side portion 12 of the first housing 11. Most of the upper surface of the first housing 11 is covered with the top plate portion 114 of the second housing 111, and the front surface of the side portion 12 of the first housing 11 and the main body portion 113 of the second housing 111 are substantially flush with each other. Since the front space 13f is in front of the bottom plate portion 14 in the fitting space 13, the lower surface of the portion of the second housing 111 near the front end faces the surface of the substrate 91 with the front space 13f interposed therebetween. . That is, the front space 13 f exists as a gap between the lower surface of the portion near the front end including at least the front wall 121 c of the main body 113 of the second housing 111 and the surface of the substrate 91.

  In addition, when the fitting of the first connector 1 and the second connector 101 is completed, the first housing 11 and the second housing 111 have a pair of left and right first front lock portions 16f and a pair of left and right second front lock portions 116f. Are engaged, and the pair of left and right first rear lock portions 16r and the pair of left and right second rear lock portions 116r are engaged to lock. That is, it is locked by a total of four first and second lock portions including two first and second lock portions at the left and right near the front end and two first and second lock portions at the left and right near the rear end. . Thereby, the fitting of the first connector 1 and the second connector 101 is prevented from being unnecessarily released.

  In particular, the first rear lock portion 16r is preloaded in the direction opposite to the unlocking direction, has high rigidity, and is difficult to elastically displace, so it is difficult to release the engagement with the second rear lock portion 116r. That is, the first and second lock portions at the left and right positions near the rear end are firmly locked. Therefore, even when the electric wire 191 is bent, the fitting between the first connector 1 and the second connector 101 is not released.

  However, if the locks of the first and second lock portions are too strong, the operator may have difficulty in disengaging the first connector 1 and the second connector 101. However, the front space 13 f exists as a gap between the lower surface of the portion of the second housing 111 near the front end of the main body 113 and the surface of the substrate 91. Therefore, for example, by using a tool, jig or the like having a thin plate-like tip such as a small screwdriver, the operator inserts the tip into the front space 13f and lifts it up, The work of releasing the fitting between the first connector 1 and the second connector 101 can be easily performed. Moreover, even if it hooks the said front-end | tip part on the lower surface of the top-plate part 114 which protrudes outward rather than the both ends of the main-body part 113, it hooks on the recessed part 113a formed in the front surface of the main-body part 113, and the same In addition, the work of releasing the fitting between the first connector 1 and the second connector 101 can be easily performed.

  Here, only an example in which a preload in a direction opposite to the unlocking direction is applied to the pair of left and right first rear lock parts 16r by the main body part 52 housed and fixed in the terminal body housing space 17 will be described. However, the preload may be applied only to either the left or right first rear lock portion 16r. This can be realized, for example, by making the dimension of the main body portion 52 of the other first terminal 51 substantially the same as the dimension of the terminal main body accommodating space 17 in the front-rear direction. The preload may be applied not only to the first rear lock portion 16r but also to the first front lock portion 16f. For example, the front wall portion 22f of the first housing 11 has the same size and structure as the rear wall portion 22r, and the front wall portion 22f has the same rigidity as the rear wall portion 22r. It can be realized by making it easy to be deformed so as to rotate around the connecting portion with the central portion 21. That is, it is sufficient that the preload is given to at least one of the first lock portions.

  As described above, in the present embodiment, the connector includes the first connector 11 including the first housing 11 made of an insulating material, the first terminals 51 loaded in the first housing 11, and the insulating material. The second connector 111 includes a second housing 111 that fits into the first housing 11, and a second terminal 151 that is loaded in the second housing 111 and contacts the first terminal 51. The first terminal 51 includes a main body portion 52 that is fixed to the first housing 11, and the first housing 11 includes a first lock portion that locks the second housing 111 fitted to the first housing 11, A terminal main body accommodating space 17 for accommodating and fixing the main body 52 of the one terminal 51, and at least one of the first lock portions includes a first terminal accommodated and fixed in the terminal main body accommodating space 17. A preload in a direction opposite to the unlocking direction is given by the main body 52 of 51.

  Thereby, it can prevent that the fitting state of the 1st connector 1 and the 2nd connector 101 is cancelled | released unnecessarily, a structure is simplified, a number of parts is reduced, manufacture is easy, and cost is low. In addition, reliability can be improved.

  The first lock portion includes a pair of left and right first front lock portions 16 f disposed near the front end of the first housing 11 and a pair of left and right first rear portions disposed near the rear end of the first housing 11. Including a lock portion 16r. As described above, since the second housing 111 of the second connector 101 is locked by the four first lock portions on the front, rear, left, and right, the fitting state between the first connector 1 and the second connector 101 can be reliably maintained. .

  Furthermore, the first housing 11 includes a pair of left and right side portions 12 extending in the front-rear direction, and a bottom plate portion 14 that connects at least a part of the lower portion of the side portion 12, and each side portion 12 has a first terminal. 51 is held one by one, and the second housing 111 is accommodated and fitted in the fitting space 13 defined on three sides by the pair of left and right side portions 12 and the bottom plate portion 14. Thereby, the attitude | position with respect to the 1st connector 1 of the 2nd connector 101 can be stabilized more.

  Furthermore, the pair of left and right first front lock portions 16f and the pair of left and right first rear lock portions 16r are disposed so as to face each other near the front end and the rear end of the pair of left and right side portions 12, respectively. The housing space 17 is a space formed in the side portion 12 and extending in the front-rear direction. The front-rear length of the main body portion 52 of the first terminal 51 is equal to or longer than the front-rear length of the terminal main body housing space 17. Thereby, since the preload in the direction opposite to the unlocking direction is applied to the first front lock portion 16f or the first rear lock portion 16r, unnecessary unlocking is surely prevented.

  Further, the side portion 12 includes a central portion 21, a front wall portion 22 f and a rear wall portion 22 r that extend forward and rearward from the central portion 21, and a bottom plate portion 14 is coupled to the lower portion of the central portion 21. The front wall portion 22f and the rear wall portion 22r are provided with a first front lock portion 16f and a first rear lock portion 16r, respectively, and the rear wall portion 22r has lower rigidity than the front wall portion 22f. Thereby, since the preload in the direction opposite to the unlocking direction is reliably applied to the first rear lock portion 16r, unnecessary unlocking is reliably prevented.

  Further, when the first connector 1 is mounted on the surface of the substrate 91, the lower surface of the first housing 11 faces the surface of the substrate 91, the terminal of the electric wire 191 is connected to the second terminal 151, and the electric wire 191 The second housing 111 includes a second lock portion that engages with the first lock portion. Thereby, the electric wire 191 can be electrically connected to the conductive trace of the substrate 91.

  Further, the second housing 111 includes a main body portion 113 including a front wall portion 121c. When the second housing 111 is fitted to the first housing 11, the front wall portion 121c is exposed to the front surface of the first housing 11, and the front side A gap is generated between the lower surface of the wall 121c and the surface of the substrate 91. Thereby, the operation of releasing the fitting between the first connector 1 and the second connector 101 can be easily performed.

  Furthermore, the second terminal 151 includes a wire gripping leg portion that grips the electric wire 191 and a contact portion 157 that contacts the first terminal 51, and the contact portion 157 comes into contact with the first terminal 51, thereby At least one of the parts is pressed to grip the electric wire 191 more strongly. Thereby, the electrical continuity state between the electric wire 191 and the electric wire gripping leg is more reliably maintained.

  In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.

  The present invention can be applied to a connector.

DESCRIPTION OF SYMBOLS 1 1st connector 11 1st housing 12,815,915 Side part 13 Fitting space 13f Front space 13r Back space 14 Bottom plate part 14a Convex part 15f Front inner side surface 15r Back inner side surface 16f First front locking part 16r Part 17 Terminal body accommodating space 17a Side outer surface 18 Terminal guide recess 21 Central part 21a Thin wall part 22f Front wall part 22r Rear wall part 23f Front arm part 23r Rear arm part 24f, 124f Front end wall part 24r, 124r Rear end wall Portion 25f front return wall portion 25r rear return wall portion 26f front fixing portion receiving groove 26fe front contact portion 26r rear fixing portion receiving groove 26re rear contact portion 27 arm portion receiving recess 28f front guide portion 28r rear guide portion 29f front auxiliary fixing Portion receiving groove 29r Rear auxiliary fixing portion receiving groove 51 First terminals 52, 113, 152 Body 53, 853 Te Slidable part 54 curved connecting part 55 auxiliary fixing part 56 curved arm part 57, 157 contact part 57a top part 57b inclined part 58f front fixing part 58fe front end 58r rear fixing part 58re rear end 91 board 93 connector electrode part 101 second connector 111 Second housing 112 Electric wire receiving recess 113a Recess 114 Top plate 115f Front outer surface 115r Rear outer surface 116f Second front lock 116r Second rear lock 118 Terminal restricting protrusion 118a Side surface 121a Central wall 121b Side wall 121c Front wall Portion 122f Front leg receiving groove 122r Rear leg receiving groove 127 Contact portion receiving slit 128 Guide recess 128a Guide plane 131 Electric wire holding portion 131a Hedge portion 151 Second terminal 153f Front wire gripping portion 153r Rear wire gripping portion 154f Front wire holding space portion 154r Rear wire holding empty Portion 155f Front wire gripping leg portion 155r Rear wire gripping leg portion 156 Connection portion 157a Edge portion 158 Connection space portion 191, 991 Wire 811, 911 Housing 813 Fitting recess 814 Recessed portion 816, 916 Lock protrusion 851, 951 Terminal 914 Projection Part

Claims (8)

(A) a first connector comprising a first housing made of an insulating material, and a first terminal loaded in the first housing;
(B) A connector made of an insulating material, including a second housing that fits into the first housing, and a second connector that is loaded in the second housing and has a second terminal that contacts the first terminal. Because
(C) The first terminal includes a main body fixed to the first housing,
(D) The first housing includes a first lock portion that locks the second housing fitted to the first housing, and a terminal body housing space that houses and fixes the body portion of the first terminal. ,
(E) At least one of the first lock portions is preloaded in a direction opposite to the unlocking direction by the main body portion of the first terminal housed and fixed in the terminal body housing space. A connector characterized by that. The first lock portion includes a pair of left and right first front lock portions disposed near the front end of the first housing, and a pair of left and right first rear lock portions disposed near the rear end of the first housing. The connector according to claim 1, comprising: The first housing includes a pair of left and right first terminal holding portions that extend in the front-rear direction, and a bottom plate portion that connects at least a part of the lower portion of the first terminal holding portion. The said 1st terminal is hold | maintained one by one, The said 2nd housing is accommodated and fitted in the fitting space demarcated on three sides by the said left-right paired 1st terminal holding | maintenance part and a baseplate part. Connector. The pair of left and right first front lock portions and the pair of left and right first rear lock portions are disposed so as to face each other near the front end and the rear end of the pair of left and right first terminal holding portions, respectively.
The terminal body housing space is a space formed in the first terminal holding portion and extending in the front-rear direction,
The connector according to claim 3, wherein the front-rear length of the main body portion of the first terminal is equal to or longer than the front-rear length of the terminal main body accommodating space. The first terminal holding part includes a central part, and a front wall part and a rear wall part extending forward and backward from the central part,
The bottom plate part is connected to the lower part of the central part,
The first front lock portion and the first rear lock portion are disposed on the front wall portion and the rear wall portion, respectively.
The connector according to claim 4, wherein the rear wall portion has lower rigidity than the front wall portion. When the first connector is mounted on the surface of the substrate, the lower surface of the first housing faces the surface of the substrate,
The terminal of the electric wire is connected to the second terminal, the electric wire extends rearward from the second housing, and the second housing includes a second lock portion that engages with the first lock portion. The connector of any one of -5. The second housing includes a main body portion including a front wall portion. When the second housing is fitted to the first housing, the front wall portion is exposed to the front surface of the first housing, and the front wall portion The connector according to claim 6, wherein a gap is formed between the lower surface and the surface of the substrate. The second terminal includes an electric wire gripping leg portion that grips the electric wire and a contact portion that contacts the first terminal, and the contact portion contacts the first terminal, whereby the electric wire gripping leg portion The connector according to claim 7, wherein at least one is pressed to grip the electric wire more strongly.

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