JP2011134460A - Electric wire pair board connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and reliably view completion of fitting from above a substrate, facilitate fitting work, reduce a space necessary for the fitting work, simplify a structure and reduce cost, reduce a size and a height, and improve reliability. <P>SOLUTION: The electric wire pair board connector includes a center lock mechanism locking a first housing and a second housing. The center lock mechanism includes a second center lock part formed on a base end of the second housing, and a first center lock part mounted on the first housing and engaging with the second center lock part. A rotation operation rod visible from above the substrate is connected to the first center lock part. The rotation operation rod is maintained in a lock position in which the first center lock part engages with the second center lock part, and in a non-lock position in which the first center lock part does not engage with the second center lock part, by a position maintaining means. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a wire-to-board 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, one connector is mounted on a circuit board and is fitted (engaged) with the other connector connected to the end of the cable.

  FIG. 12 is a perspective view showing a series of fitting operations of a conventional wire-to-board connector.

  In the figure, reference numeral 901 denotes a board connector, which is mounted on a circuit board (not shown) included in an electronic device, an electric device, or the like. Reference numeral 801 denotes a cable connector which is connected to a terminal end of an electric wire included in a cable (not shown) and is fitted to the board connector 901.

  The board connector 901 includes a housing 911 and a terminal 961 loaded in the housing 911. The terminal 961 includes a contact portion 961a disposed in the receiving recess 913 of the housing 911, and a connection leg 961b and a mounting leg 961c protruding from the bottom wall of the housing 911. The housing 911 includes an engaging portion 914 formed at the rear end of the side wall.

  On the other hand, the cable connector 801 has a housing 811 and a terminal (not shown) attached to the housing 811 and connected to the electric wire. A moving member 830 that can move in the front-rear direction is attached to the housing 811. The moving member 830 includes a rear wall portion 831, an upper plate portion 832, and side end portions 834 extending on both sides of the rear wall portion 831.

  When the cable connector 801 and the board connector 901 are fitted, first, the cable connector 801 is moved with respect to the board connector 901 in the direction of the arrow shown in FIG. Is inserted into the receiving recess 913 of the housing 911 of the board connector 901. As a result, the state as shown in FIG.

  Subsequently, the moving member 830 is moved rearward, and the side end portion 834 thereof is engaged with the engaging portion 914 of the housing 911 as shown in FIG. As a result, the cable connector 801 is locked to the board connector 901 and the fitting is not released.

  In addition, when the housing 811 of the cable connector 801 is inserted into the receiving recess 913 of the housing 911 of the board connector 901, if the fitting state between the cable connector 801 and the board connector 901 is incomplete, the engagement portion 914 Since the front end surface interferes with the side end portion 834 of the moving member 830, the moving member 830 cannot be moved backward.

  Therefore, the operator can determine from the outside whether or not the fitting state between the cable connector 801 and the board connector 901 is complete by observing the position of the moving member 830.

JP 2009-32666 A

  However, in the conventional wire-to-board connector, since the moving distance of the moving member 830 is short, it is difficult to accurately determine the position of the moving member 830 in a short time. Therefore, there is a possibility that the operator mistakes it as being complete although the fitting state is incomplete.

  However, if the moving distance of the moving member 830 is increased, the position of the moving member 830 can be determined relatively easily. However, in recent years, there has been a demand for miniaturization of connectors as well as miniaturization of electrical devices and electronic devices. Therefore, it is impossible to lengthen the moving distance of the moving member 830 because the entire wire-to-board connector becomes large as a result.

  The present invention solves the problems of the conventional wire-to-board connector and is disposed on the upper surface of the first housing after the first housing of the first connector is fitted to the second housing of the second connector. By rotating the rotary operation unit to lock the first housing and the second housing, it is possible to easily and surely confirm the completion of the fitting from above the board, and the fitting operation is easy. An object of the present invention is to provide a highly reliable wire-to-board connector that can reduce the space required for joint work, has a simple structure, is low in cost, and can be reduced in size and height.

  For this purpose, in the wire-to-board connector of the present invention, a first connector having a first terminal connected to the wire, a first housing loaded with the first terminal, and a first connector in contact with the first terminal. A wire-to-board connector comprising two terminals and a second connector loaded with the second terminal and fitted with the first housing and mounted on a board, A center lock mechanism for locking the housing and the second housing, the center lock mechanism being attached to the first housing; a second center lock portion formed at a proximal end of the second housing; 2 a first center lock portion that engages with the center lock portion, and a rotation operation rod that is visible from above the substrate is connected to the first center lock portion, and the rotation operation lock Are maintained in a locked posture in which the first center lock portion engages with the second center lock portion and a non-locked posture in which the first center lock portion does not engage with the second center lock portion by the posture maintaining means. .

  In another wire-to-board connector of the present invention, the proximal end locking mechanism for locking the proximal ends of the first housing and the second housing, and the distal ends of the first housing and the second housing are locked together. A distal end locking mechanism, wherein the center locking mechanism locks between a proximal end and a distal end of the first housing and the second housing, and the rotating operation rod is in a locking position, The distal end locking mechanism is held unlockable.

  In still another wire-to-board connector of the present invention, the distal end locking mechanism further includes a second distal end locking portion formed at a distal end of the second housing, and a distal end of the first housing. A first distal end lock portion that is formed at the distal end and engages with the second distal end lock portion, and the rotary operating rod has a longitudinal end at the first distal end in a locked position. Prevents displacement of the end lock.

  In still another wire-to-board connector of the present invention, it further includes a positioning mechanism for positioning the first housing and the second housing, and the positioning mechanism is perpendicular to the fitting surface of the second housing. The proximal end of the first housing is guided so as to move in the direction to be positioned with respect to the proximal end of the second housing, and the proximal end locking mechanism includes the proximal end and the second end of the positioned first housing. The proximal end of the housing is rotatably held, and the distal end locking mechanism is rotated about the proximal end, and the distal ends of the first housing and the second housing that are fitted with their fitting surfaces parallel to each other are arranged. Lock the ends.

  According to the present invention, after the first housing of the first connector is fitted to the second housing of the second connector, the rotation operation unit disposed on the upper surface of the first housing is rotated to rotate the first housing and the second housing. Lock the housing. Thereby, the completion of the fitting can be easily and reliably visually recognized from above the substrate, the fitting work can be easily performed, and the space required for the fitting work can be reduced. Further, the structure can be simplified to reduce the cost, the size and the height can be reduced, and the reliability can be improved.

It is the perspective view of the electric wire connector in embodiment of this invention, Comprising: (a) is the figure which looked at the fitting surface from diagonally back, (b) is the figure which looked at the fitting surface from diagonally forward, (c) is It is the figure which looked at the anti-fitting surface from diagonally backward. It is the perspective view of the board | substrate connector in embodiment of this invention, Comprising: (a) is the figure which looked at the fitting surface from diagonally back, (b) is the figure which looked at the fitting surface from diagonally forward. It is a perspective view of the auxiliary | assistant metal fitting of the board | substrate connector in embodiment of this invention. It is a perspective view of the terminal of the board | substrate connector in embodiment of this invention. It is a perspective view of the terminal of the electric wire connector in an embodiment of the invention. It is the perspective view of the rotation operation part in embodiment of this invention, Comprising: (a) is the figure which looked at the non-fitting surface side, (b) is the figure which looked at the fitting surface side. It is the perspective view of the electric wire side housing in embodiment of this invention, Comprising: (a) is the figure which looked at the non-fitting surface side, (b) is the figure which looked at the fitting surface side. It is sectional drawing of the state which attached the rotation operation part to the electric wire side housing in embodiment of this invention, (a) is a sectional side view, (b) is a cross-sectional view. It is a perspective view which shows the state which fitted the wire-to-board connector in embodiment of this invention, Comprising: (a) is a figure which shows the state of a rotation operation part in a non-locking attitude | position, (b) is a rotation operation part locked. It is a figure which shows the state of an attitude | position. It is a top view which shows the state which fitted the wire-to-board connector in embodiment of this invention, Comprising: (a) is a figure which shows the state of a rotation operation part in a non-locking attitude | position, (b) is a rotation operation part locked. It is a figure which shows the state of an attitude | position. BRIEF DESCRIPTION OF THE DRAWINGS It is a cross-sectional view which shows the state which fitted the wire-to-board connector in embodiment of this invention, Comprising: (a) is a figure which shows the state of a rotation operation part in a non-locking attitude | position, (b) is a rotation operation part It is a figure which shows the state of a lock attitude | position. It is a perspective view which shows the operation | movement of a series of fitting of the conventional wire-to-board connector.

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

  2 is a perspective view of the board connector in the embodiment of the present invention, FIG. 3 is a perspective view of the auxiliary metal fitting for the board connector in the embodiment of the present invention, and FIG. 4 is a diagram of the terminals of the board connector in the embodiment of the present invention. It is a perspective view. In FIG. 2, (a) is a view of the fitting surface viewed obliquely from the rear, and (b) is a view of the fitting surface viewed obliquely from the front.

  In the figure, reference numeral 101 denotes a board connector as a second connector in the wire-to-board connector of the present embodiment, which is mounted on a circuit board as a board (not shown). This is a back connector. An electric wire connector 1 as a first connector, which will be described later, is fitted to the board connector 101, whereby an electric wire 91 to be described later connected to the electric wire connector 1 is connected to the circuit board via the board connector 101. Electrically connected to the conductive traces of The wire connector 1 is desirably a low-profile connector and is vertically fitted to the board connector 101, similarly to the board connector 101.

  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 board connector 101 and the wire connector 1 are absolute. It is not relative, but is relative and suitable when the board connector 101 and the wire connector 1 are in the posture shown in the figure, but when the posture of the board connector 101 and the wire connector 1 is changed, the posture is changed. It should be interpreted according to changes.

  Here, the board connector 101 is a receptacle connector, which is integrally formed of an insulating material such as a synthetic resin, and serves as a second housing that fits into a wire-side housing 11 described later of the wire connector 1. A board-side housing 111, a board-side terminal 161 as a metal second terminal loaded in the board-side housing 111, and a metal mounting auxiliary metal 181 as an auxiliary metal loaded in the board-side housing 111. And have.

  In the example shown in the figure, there are two board-side terminals 161, but the number of board-side terminals 161 can be arbitrarily changed according to the number of wires 91. The board connector 101 has a substantially rectangular parallelepiped shape, and is attached to the circuit board so that the lower surface (the lower surface in FIG. 2) faces the surface of the circuit board, and the electric wire connector 1 is fitted from above. Is done.

  As shown in the drawing, the board-side housing 111 is formed on the edge of the flat plate-shaped bottom plate portion 112 having a substantially rectangular shape and the rear end side (the lower right side in FIG. 2A) of the bottom plate portion 112. A rear wall portion 115 extending along the side wall, and a side wall portion 117 extending along both side edges of the bottom plate portion 112 and extending substantially perpendicularly to the lower surface of the substrate-side housing 111. Reference numeral 113 denotes a fitting space defined on the left and right sides by the side wall portion 117 above the bottom plate portion 112, and a space in which a lower end portion of a body portion 14 described later of the wire connector 1 is accommodated and fitted. It is.

  In addition, a groove-shaped terminal receiving recess 112 a that has a slit-like opening on the front surface and extends rearward is formed in the inner portion of the left and right side wall portions 117 in the bottom plate portion 112, and the bottom plate portion 112. A terminal protection part 114 is formed extending upward from the upper surface. The terminal protection part 114 is formed at a position between the front end and the rear end of the bottom plate part 112. Then, one board-side terminal 161 is housed and loaded inside each terminal housing recess 112 a and terminal protection section 114. In the example shown in the figure, there are two terminal receiving recesses 112 a and terminal protection portions 114, but the number of terminal receiving recesses 112 a and terminal protection portions 114 corresponds to the number of board-side terminals 161. It can be changed arbitrarily.

  As shown in FIG. 4, the board-side terminal 161 includes a connection portion 163, a tail portion 162 extending from one end of the connection portion 163 toward one side, and the other end of the connection portion 163 toward the other side. And a contact portion 164 extending. The contact portion 164 includes a pair of left and right sandwiching arms 164a having a cantilever-like elasticity extending upward, and an electric wire to be described later inserted between the left and right sandwiching arms 164a facing each other. The contact portion 64 of the side terminal 61 is clamped from both sides by the spring force exerted by the sandwiching arm 164a to maintain contact. In the example shown in the figure, the sandwiching arm 164a is divided into a plurality (two in the figure) in the longitudinal direction of the contact portion 164, but may not be divided.

  The connection portion 163 of the board-side terminal 161 is press-fitted and fixed in the terminal receiving recess 112a, and the sandwiching arm 164a of the contact portion 164 protrudes upward from the upper surface of the bottom plate portion 112, and is inside the terminal protection portion 114. Is housed. A slit-shaped wire side terminal insertion opening 114a is formed in the upper portion of the terminal protection portion 114, and when the board connector 101 and the wire connector 1 are fitted, the contact portion 64 of the wire side terminal 61 becomes the wire side terminal. It is inserted between the left and right sandwiching arms 164a facing each other through the insertion opening 114a. Further, the tail 162 of the board-side terminal 161 extends in the tip direction from the front end of the bottom plate part 112, and is connected to a signal line, a contact pad, a terminal, etc. formed on the circuit board, that is, a counterpart terminal member. It is electrically connected by soldering or the like. The board-side terminal 161 functions as a first fixing bracket for fixing the board connector 101 to the circuit board, and the tail part 162 functions as a first board fixing part.

  Further, a metal fitting receiving recess 115a is formed on the rear end side of the rear wall portion 115, and a mounting auxiliary metal fitting 181 is received and loaded in the metal fitting receiving recess 115a. In the example shown in the figure, there are two metal fitting recesses 115a, but the number can be arbitrarily changed.

  As shown in FIG. 3, the auxiliary mounting bracket 181 includes a connection portion 183 and a solder tail portion 182 extending from the lower end of the connection portion 183. The connecting portion 183 is press-fitted and fixed in the metal fitting receiving recess 115a, and the solder tail portion 182 is fixed to a connector fixing portion such as a solder pad formed on the circuit board by soldering or the like. Thereby, the board connector 101 is firmly fixed to the circuit board. The auxiliary mounting bracket 181 functions as a second fixing bracket for fixing the board connector 101 to the circuit board, and the solder tail portion 182 functions as a second board fixing portion.

  A base-side rotating shaft locking portion 121 extending upward from the upper surface of the bottom plate portion 112 is formed as a second base-end locking portion at the base end of the substrate-side housing 111, that is, the center at the front end. Yes. The substrate-side rotary shaft locking portion 121 is a member that functions as a part of the proximal-end locking mechanism together with a later-described electric wire-side rotary shaft locking portion 21 of the electric wire-side housing 11 and is engaged with the electric wire-side rotary shaft locking portion 21. And it is the member which locks the front end side of the board | substrate side housing 111 and the electric wire side housing 11. FIG.

  The substrate-side rotating shaft locking portion 121 is engaged with an engagement hole 121a formed so as to penetrate in the front-rear direction, an engagement beam 121b that defines the upper end of the engagement hole 121a, And an engagement bottom plate 121d that defines the lower end of the hole 121a. Further, a rotation allowing hole 121c formed so as to penetrate in the plate thickness direction (vertical direction) is formed in a portion of the bottom plate portion 112 adjacent to the rear end of the substrate side rotation shaft lock portion 121. Note that the engagement hole 121a is not necessarily a hole formed so as to penetrate in the front-rear direction, and is formed on the rear surface of the substrate-side rotating shaft lock portion 121 and is a recess (recessed). B) It may also be The rotation permissible hole 121c is not necessarily a hole formed so as to penetrate in the vertical direction, and may be a recess formed on the upper surface of the bottom plate portion 112 and recessed downward.

  The rotation permission hole 121c is formed to communicate with the rear lower end portion of the engagement hole 121a. In the example shown in the figure, the engagement hole 121a is divided into a plurality (two in the figure) in the lateral direction of the substrate-side rotation shaft locking part 121, but it may not be divided. However, when divided into a plurality of parts, the engagement beam 121b and the engagement bottom plate part 121d are connected by the partition wall of the engagement hole 121a, so that the strength of the substrate-side rotation shaft locking part 121 is improved. The engagement bottom plate portion 121d can be omitted as appropriate if there is no problem in strength. That is, the substrate-side rotating shaft locking part 121 can exhibit the function as the second base end locking part even if the engagement bottom plate part 121d is omitted.

  Further, on the inner side surface of the side wall portion 117, a concave groove-like substrate side positioning engagement portion 122 extending in the vertical direction is formed as a second positioning portion. The board-side positioning engagement portion 122 is a member that functions as a part of a positioning mechanism together with a later-described wire-side positioning engagement portion 22 of the wire-side housing 11, and engages with the wire-side positioning engagement portion 22. This is a member for positioning the front end side of the electric wire side housing 11 with respect to the board side housing 111 during the fitting. The board-side positioning engagement portion 122 extends substantially perpendicularly to the upper surface of the bottom plate portion 112, the upper end thereof opens to the upper surface of the side wall portion 117, and the lower end thereof is closed and defined by the upper surface of the bottom plate portion 112. Has been. Note that the lower end of the substrate side positioning engagement portion 122 is not necessarily closed by the upper surface of the bottom plate portion 112, and may be open to the lower surface of the bottom plate portion 112, for example.

  Further, at the distal end of the substrate-side housing 111, that is, at the center at the rear end, the substrate-side rotation as a second distal end lock portion extending upward from the upper surfaces of the bottom plate portion 112 and the rear wall portion 115 is provided. An end lock portion 123 is formed. The board-side rotation end lock portion 123 is a member that functions as a part of the distal-end lock mechanism together with the wire-side rotation end lock portion 23 described later of the wire-side housing 11. In addition, it is a member that locks the rear end side of the board side housing 111 and the wire side housing 11.

  The substrate-side rotation end lock portion 123 includes an engagement hole 123a formed so as to penetrate in the front-rear direction, and an engagement beam 123b that defines the upper end of the engagement hole 123a. In addition, a permissible hole 123c formed so as to penetrate in the plate thickness direction (vertical direction) is formed in a portion of the bottom plate portion 112 adjacent to the front end of the substrate side rotation end lock portion 123. The allowable hole 123c is formed to communicate with the lower end portion of the engagement hole 123a. In the example shown in the figure, the engagement holes 123a are formed in a plurality (two in the figure) in the lateral direction of the substrate-side rotation end lock portion 123, but may be a single number. It may be. Further, as described above, the engagement hole 121a and the rotation allowance hole 121c do not necessarily have to be formed so as to pass through, and may be a recess that opens toward the center of the substrate-side housing 111. Good.

  In addition, a substrate-side center lock portion 133 as a second center lock portion that extends upward from the upper surface of the bottom plate portion 112 is formed in the inner portion of the left and right terminal protection portions 114 in the bottom plate portion 112. . The substrate side center lock portion 133 is formed at a position between the front end and the rear end of the bottom plate portion 112. And the said board | substrate side center lock part 133 is a member which functions as a part of center lock mechanism with the electric wire side center lock part 33 with which the rotation operation part 30 mentioned later attached to the electric wire side housing 11 is equipped, It is a member that engages with the center lock portion 33 and locks the intermediate portion of the board side housing 111 and the wire side housing 11.

  In the example shown in the figure, the substrate-side center lock portion 133 is a pair of left and right members, each of which is a member having an L-shaped cross section, and a leg portion 133a extending upward from the bottom plate portion 112; And an engagement eaves part 133b extending inward from the upper end of the leg part 133a. Note that an engagement space 133c is formed below the engagement flange 133b. Further, the substrate side center lock portion 133 is not necessarily a pair of left and right members, and may be only one of the left and right.

  Next, the configuration of the electric wire connector 1 will be described.

  FIG. 1 is a perspective view of a wire connector according to an embodiment of the present invention, and FIG. 5 is a perspective view of a terminal of the wire connector according to the embodiment of the present invention. In FIG. 1, (a) is a view of the fitting surface obliquely from the rear, (b) is a drawing of the fitting surface from the oblique front, and (c) is an anti-fitting surface from the oblique rear. FIG.

  The electric wire connector 1 is a plug connector, which is integrally formed of an insulating material such as a synthetic resin, and includes an electric wire side housing 11 as a first housing that fits with the board side housing 111 of the board connector 101, It has a wire side terminal 61 as a metal first terminal loaded in the wire side housing 11. Each wire-side terminal 61 is a wire-side terminal accommodating recess formed in the wire-side housing 11 in a state of being connected to the terminal end of each wire 91 so as to be electrically connected to a conductive wire as a core wire of each wire 91. One by one is accommodated in 13 and held. In the example shown in the figure, there are two electric wire side terminals 61 and two electric wire side terminal accommodating recesses 13, but the number of electric wire side terminals 61 and electric wire side terminal accommodating concave portions 13 corresponds to the number of electric wires 91. It can be changed arbitrarily.

  And the said electric wire connector 1 is provided with a substantially rectangular parallelepiped shape, and the fitting surface (upper surface in FIG. 1 (a) and (b)) opposes the fitting surface (upper surface in FIG. 2) of the board | substrate connector 101. FIG. It is fitted to the board connector 101. That is, it is vertically fitted to the board connector 101.

  As shown in the drawing, the electric wire side housing 11 includes a substantially rectangular flat plate-shaped top plate portion 12 positioned on the opposite mating surface side, and a rectangular parallelepiped main body portion 14 connected to the lower surface of the top plate portion 12. And have.

  Reference numeral 17 denotes side wall portions extending along side edges on the left and right sides of the main body portion 14, and the electric wire side terminal accommodating recesses 13 are respectively formed in the side wall portions 17. The electric wire side terminal accommodating recess 13 includes an electric wire insertion opening 13b formed in the rear end surface of the side wall portion 17, and the electric wire 91 connected to the electric wire side terminal 61 loaded in the electric wire side terminal accommodating recess 13 is It extends rearward from the rear end surface of the side wall portion 17 through the wire insertion opening 13b. Further, a terminal insertion opening 13 a that communicates with the wire-side terminal housing recess 13 is formed on the fitting surface of the side wall portion 17, and when the wire connector 1 is fitted to the board connector 101, the contact portion of the board-side terminal 161. The sandwiching arm 164a of 164 enters the wire side terminal accommodating recess 13 through the terminal insertion opening 13a together with the terminal protection portion 114.

  As shown in FIG. 5, the electric wire side terminal 61 is a so-called blade terminal, and includes a connection portion 63, a tail portion 62 extending from one end of the connection portion 63 toward one side, and the connection portion 63. A contact part 64 extending from the other end toward the other side, and a locking part 65 projecting from one end of the contact part 64 toward the outer side surface are provided. The connection portion 63 grips a conductive wire as a core wire of the electric wire 91, and the tail portion 62 grips an outer sheath of the electric wire 91, whereby the electric wire side terminal 61 is electrically and mechanically connected to the terminal end of the electric wire 91. Connected. Further, the locking portion 65 is locked to the inner wall of the wire side terminal accommodating recess 13 and fixes the wire side terminal 61. Furthermore, the contact portion 64 is a rectangular plate-like member, and is inserted between the left and right sandwiching arms 164a provided in the contact portion 164 of the board-side terminal 161, and the spring exerted by the sandwiching arm 164a. It is clamped from both sides by force to maintain contact. The contact portion 64 and the terminal insertion opening 13a are preferably located at a position close to the front end of the wire-side housing 11.

  Then, at the base end of the electric wire side housing 11, that is, at the center at the front end, as a first base end lock portion, a plate-like electric wire side rotation extending forward from the front end on the fitting surface side of the main body portion 14 is performed. A shaft lock portion 21 is formed. As described above, the electric wire side rotating shaft locking portion 21 is a member that functions as a part of the base end locking mechanism together with the substrate side rotating shaft locking portion 121 of the substrate side housing 111. It is a member that engages and locks the front end side of the board side housing 111 and the wire side housing 11. Further, a notch 16 is formed at the center of the front end of the main body 14, and the fitting surface side end (the upper end in FIGS. 1A and 1B) of the notch 16 is locked to the electric wire side rotating shaft. A part 21 is defined.

  Moreover, the electric wire side positioning engaging part 22 as a 1st positioning part is formed so that it may protrude outside from the side surface of the side wall part 17. As shown in FIG. The electric wire side positioning engagement portion 22 is a member that functions as a part of the positioning mechanism together with the board side positioning engagement portion 122, and is a member that engages with the board side positioning engagement portion 122. Specifically, the electric wire side positioning engagement portion 22 is both end portions of a columnar rod member 22 a formed so as to extend laterally at the front end edge of the fitting surface of the main body portion 14. The rod member 22a is formed integrally with the main body portion 14 and the side wall portion 17, and is formed integrally with the electric wire side rotary shaft lock portion 21 so as to penetrate the electric wire side rotary shaft lock portion 21 in the lateral direction. Has been. In the example shown in the figure, the rod member 22a has a cylindrical side surface and is formed so as to be clearly distinguishable from the fitting surface and the front end surface of the main body portion 14, but is not necessarily fitted to the main body portion 14. It is not necessary to provide a shape that can be clearly distinguished from the surface and the front end surface. That is, the electric wire side positioning engaging portions 22 protruding from the side wall portions 17 on both sides may be positioned on the same axis as if they are both ends of one rod-like member.

  The front end 21 a of the electric wire side rotation shaft lock portion 21 is a portion that engages with the engagement hole 121 a and the engagement beam 121 b of the substrate side rotation shaft lock portion 121, and the front ends of the main body portion 14 and the side wall portion 17. Moreover, it protrudes forward from the rod member 22a. Further, in the example shown in the figure, the distal end portion 21a is divided into a plurality (two in the figure) in the lateral direction corresponding to the engagement holes 121a, but may not be divided.

  Furthermore, the electric wire side rotation end lock part 23 as a 1st distal end lock part which protrudes toward back is formed in the distal end of the electric wire side housing 11, ie, the center in a rear end. As described above, the wire-side rotation end lock portion 23 engages with the substrate-side rotation end lock portion 123 of the substrate-side housing 111 to lock the substrate-side housing 111 and the rear end side of the wire-side housing 11. It is.

  The electric wire side rotation end lock portion 23 has an L-shape as a whole, the base end is integrally connected to the fitting surface of the main body portion 14, and the free end is directed toward the top plate portion 12. A member that connects an extending cantilever-like elastic arm portion 23a, an engagement protrusion 23b that is formed in the middle of the elastic arm portion 23a and protrudes rearward, and a free end of the elastic arm portion 23a. And an operation unit 23c operated by an operator's fingers or the like. The engagement protrusion 23b is a member that engages with the engagement hole 123a and the engagement beam 123b of the substrate side rotation end lock portion 123. In the example shown in the figure, a plurality of elastic arm portions 23a and engagement protrusions 23b are formed in the lateral direction corresponding to the engagement holes 123a (two in the figure). The number may be any number.

  And between the front end and the rear end in the electric wire side housing 11, the rotation operation part 30 is attached rotatably. A locking recess 18 is formed on the fitting surface of the main body 14, and an engagement umbrella portion 33 b of the electric wire side center locking portion 33 as a first center locking portion provided in the rotation operation portion 30 is provided in the locking recess 18. To position. On the other hand, the top plate portion 12 is formed with a rotation operation recess 12a, and the rotation operation rod 30 provided in the rotation operation recess 12a and a rotation operation rod, that is, an operation rod portion 35 are provided. To position. As will be described later, the main body portion 14 is formed with a bearing hole 15 penetrating in the thickness direction thereof to communicate the locking recess 18 and the rotation operation recess 12a, and the upper end is a disc portion. A shaft leg portion 33a, which will be described later, of the electric wire side center lock portion 33 connected to the operation rod portion 35 via 31 is rotatably accommodated in the bearing hole 15.

  As described above, the wire-side center lock portion 33 engages with the substrate-side center lock portion 133 of the substrate-side housing 111 to lock the intermediate portion between the substrate-side housing 111 and the wire-side housing 11. It is a member that functions as a part. Specifically, each of the pair of engagement umbrella portions 33 b engages with the engagement flange portion 133 b of the substrate side center lock portion 133 to lock the intermediate portion between the substrate side housing 111 and the wire side housing 11. In addition, the attitude | position of the rotation operation part 30 shown by FIG. 1, ie, the attitude | position of the operation-bar part 35, is the non-locking attitude | position which shows that the engagement umbrella part 33b exists in the non-locking position which does not engage with the engagement collar part 133b. Then, when it is rotated 90 degrees from the non-locking posture, it becomes a locked posture indicating that the engaging umbrella portion 33b is in a locked position where it engages with the engaging collar portion 133b.

  Next, a structure for attaching the rotation operation unit 30 to the electric wire side housing 11 will be described.

  FIG. 6 is a perspective view of the rotation operation unit in the embodiment of the present invention, FIG. 7 is a perspective view of the electric wire side housing in the embodiment of the present invention, and FIG. 8 is a rotation operation on the electric wire side housing in the embodiment of the present invention. It is sectional drawing of the state which attached the part. 6 and 7, (a) is a view of the non-fitting surface side, (b) is a view of the fitting surface side, and in FIG. 8, (a) is a side sectional view, ( b) is a cross-sectional view.

  As shown in FIG. 6, the rotation operation unit 30 is a member integrally formed of an insulating material such as a synthetic resin, and includes a disk-shaped disk unit 31 and an upper surface of the disk unit 31. And a rod-shaped operation bar portion 35 extending in the diameter direction, and a pair of electric wire side center lock portions 33 extending downward from the lower surface of the disc portion 31. The disc part 31 includes a large diameter part 31a located on the upper side and a small diameter part 31b located on the lower side. Further, both ends of the operation rod portion 35 protrude outward from the outer periphery of the large-diameter portion 31a, and the lower surface thereof is flush with the lower surface of the large-diameter portion 31a. A posture maintaining recess 32 is formed in each of the portions of the lower surface of the operation rod portion 35 that protrudes outward from the outer periphery of the large diameter portion 31a. Furthermore, the electric wire side center lock portion 33 is a member having an L-shaped cross section, and an upper end of the shaft leg portion 33a connected to the lower surface of the disc portion 31, and an outer side from the lower end of the shaft leg portion 33a. And an engaging umbrella portion 33b extending toward the front. The outer side surface of the shaft leg portion 33a is preferably a cylindrical surface having a smaller diameter than the small diameter portion 31b. In addition, the shape of the tip edge of the engagement umbrella portion 33b is preferably an arc shape.

  As shown in FIG. 7, the wire-side housing 11 includes a rotation operation recess 12 a formed in the top plate 12, a rotation stopper 12 b, and a lock recess 18 formed in the fitting surface of the main body 14. And a bearing hole 15 that is formed so as to penetrate in the thickness direction of the main body portion 14 and communicates the concave portion 12a for rotation operation and the concave portion 18 for locking.

  The rotation operation recess 12a is a recess that rotatably accommodates the large diameter portion 31a and the operation rod portion 35 of the rotation operation portion 30, and the upper surface thereof is opposed to the lower surfaces of the large diameter portion 31a and the operation rod portion 35. To do. Further, on the upper surface of the rotation operation recess 12a, a non-locking posture maintaining convex portion 27a that engages with the posture maintaining recess 32 and maintains the posture of the rotation operation unit 30 in an unlocked position, and the posture maintenance recess. A lock posture maintaining convex portion 27b is formed that engages with the rotation operation portion 30 and maintains the posture of the rotation operation unit 30 in the lock posture. Further, the rotation stopper portion 12b is a member formed so as to extend from the periphery into the rotation operation recess 12a, the tip of the rotation stopper portion 12b is located in the vicinity of the lock posture maintaining protrusion 27b, and the rotation operation portion 30 is Prevent further rotation beyond the locked position. In the case where the non-locking posture maintaining convex portion 27a and the locked posture maintaining convex portion 27b are described in an integrated manner, they will be described as the posture maintaining convex portion 27. The posture maintaining convex portion 27 functions as the posture maintaining means of the rotation operation unit 30 together with the posture maintaining concave portion 32.

  The locking recess 18 includes a center lock housing portion 18a for housing the substrate side center lock portion 133 of the substrate side housing 111 and the rotation operation portion 30 in a state where the electric wire side housing 11 is fitted to the substrate side housing 111. A rotation operation portion holding portion 18b that engages with the engagement umbrella portion 33b and can prevent the rotation operation portion 30 from falling off the electric wire side housing 11.

  Further, the bearing hole 15 penetrates in the thickness direction of the main body portion 14, has a cylindrical inner peripheral surface, and has a main port portion 15 a that rotatably accommodates the shaft leg portion 33 a of the rotation operation portion 30, and the main port portion 15 a. A counterbore portion 15b formed at the upper end of the port portion 15a and having a larger diameter than the main port portion 15a, and rotatably accommodates the small diameter portion 31b of the rotation operation portion 30, and an inner peripheral surface of the main port portion 15a. It is formed so as to be opposed to each other at two places, and extends in the thickness direction of the main body portion 14, and includes a groove-shaped enlarged diameter portion 15 c that allows passage of the engagement umbrella portion 33 b of the rotation operation portion 30. . The radius of the inner peripheral surface of the enlarged diameter portion 15c is preferably slightly smaller than the radius of the tip edge of the engagement umbrella portion 33b.

  When the rotation operation unit 30 is attached to the electric wire side housing 11, the electric wire side center lock portion 33 is inserted into the bearing hole 15 from the top plate portion 12 side with the engagement umbrella portion 33 b as the head. In this case, the position of each engagement umbrella part 33b is made to correspond to the position of each enlarged diameter part 15c. Although the radius of the tip edge of the engagement umbrella portion 33b is larger than the radius of the inner peripheral surface of the enlarged diameter portion 15c, the shaft leg portion 33a has a cantilever shape and has a certain degree of elasticity. The engaging umbrella portion 33b formed at the free end of the shaft leg portion 33a can be elastically displaced. Therefore, when the engagement umbrella part 33b is inserted into the enlarged diameter part 15c, the radius of the tip edge of the engagement umbrella part 33b contracts to the radius of the inner peripheral surface of the enlarged diameter part 15c, and the engagement umbrella part 33b expands in diameter. It can pass through the part 15c.

  When the insertion of the wire-side center lock portion 33 into the bearing hole 15 is completed, the rotation operation portion 30 is attached to the wire-side housing 11 as shown in FIG. In this case, the posture of the operating rod portion 35 is a non-locking posture as shown in FIG.

  When the engagement umbrella portion 33b passes through the enlarged diameter portion 15c and reaches the locking recess portion 18, the shape of the shaft leg portion 33a is restored, and the radius of the tip edge of the engagement umbrella portion 33b also becomes the original size. . That is, it becomes larger than the radius of the inner peripheral surface of the enlarged diameter portion 15c. Therefore, since the engagement umbrella part 33b engages with the rotation operation part holding part 18b, the wire side center lock part 33 is prevented from being pulled out from the bearing hole 15, and the rotation operation part 30 is detached from the wire side housing 11. Is prevented. From this state, when the rotation operation unit 30 is rotated 90 degrees to the locked posture, the position of each engagement umbrella portion 33b is shifted from the position of each enlarged diameter portion 15c. Engagement with the holding part 18b becomes stronger. Therefore, when storing the rotation operation unit 30 for a long period of time with the rotation operation unit 30 attached to the electric wire side housing 11, the rotation operation unit 30 is kept in a locked posture, so that Omission from the electric wire side housing 11 is more reliably prevented.

  In a state in which the rotation operation unit 30 is attached to the electric wire side housing 11, the large diameter portion 31a and the operation rod portion 35 of the rotation operation unit 30 are accommodated in the rotation operation recess 12a, and the small diameter portion 31b is accommodated in the counterbore portion 15b. Has been. Moreover, the shaft leg part 33a is accommodated in the main port part 15a, and is rotatably supported. Therefore, the rotation operation unit 30 is rotatable with respect to the electric wire side housing 11. However, since the posture of the rotation operation unit 30 is in the unlocked posture, as shown in FIG. 8B, the unlocked posture maintaining convex portion 27a enters and engages in the posture maintaining concave portion 32. Yes. Therefore, unless the operator rotates the rotary operation unit 30 with fingers or the like, even if a weak external force such as vibration is applied to the rotary operation unit 30 or the electric wire side housing 11, the posture of the rotary operation unit 30 does not change from the unlocked posture. .

  Next, an operation for fitting the wire connector 1 to the board connector 101 will be described.

  9 is a perspective view showing a state in which the wire-to-board connector in the embodiment of the present invention is fitted, FIG. 10 is a plan view showing a state in which the wire-to-board connector in the embodiment of the present invention is fitted, FIG. These are the cross-sectional views which show the state which fitted the wire-to-board connector in embodiment of this invention. 9-11, (a) is a figure which shows the state in which a rotation operation part is a non-locking attitude | position, (b) is a figure which shows the state in which a rotation operation part is a locking attitude | position.

  Here, in the board connector 101, the bottom surface of the board-side housing 111 is opposed to the surface of the circuit board (not shown), and the tail portion 162 of the board-side terminal 161 is soldered to a connection pad connected to a conductive trace on the circuit board. It is assumed that the solder tail portion 182 of the auxiliary mounting bracket 181 is surface-mounted on the circuit board by being connected to a fixing pad on the circuit board by soldering or the like.

  When fitting the wire connector 1 to the board connector 101 mounted on the circuit board, the operator operates the wire connector 1 with fingers or the like, and the front surface of the wire connector 1 is the fitting surface of the board connector 101 (FIG. 2). The fitting surface of the electric wire connector 1 (the upper surface in FIGS. 1 (a) and 1 (b)) is located behind the board connector 101. The posture should be suitable. The posture of the rotation operation unit 30 is set to a non-locking posture.

  The posture of the electric wire connector 1 may be such that its front-rear direction is perpendicular to the front-rear direction of the board connector 101, that is, perpendicular to the surface of the circuit board. It may be inclined with respect to the direction or the surface of the circuit board.

  Subsequently, the operator moves the electric wire connector 1 in a direction approaching the board connector 101, and sets the left and right electric wire side positioning engaging portions 22 protruding outward from the side surface of the side wall portion 17 of the electric wire side housing 11. The left and right board-side positioning engaging portions 122 formed on the inner surface of the side wall portion 117 of the side housing 111 are inserted from the upper ends thereof. When the wire-side positioning engagement portion 22 reaches the lower end of the board-side positioning engagement portion 122, the wire-side rotation shaft locking portion 21 of the wire-side housing 11 and the substrate-side rotation shaft locking portion 121 of the substrate-side housing 111 are connected. Engage. Note that the tip end portion 21a of the electric wire side rotating shaft locking portion 21 protruding from the electric wire side positioning engagement portion 22 is accommodated in a rotation permissible hole 121c formed in the bottom plate portion 112 and abuts on the surface of the circuit board. It does not damage the surface of the circuit board.

  Thereby, the electric wire connector 1 is positioned with respect to the board connector 101, and the attitude of the electric wire connector 1 is also adjusted so that the front-rear direction thereof is substantially orthogonal to the front-rear direction of the board connector 101 or the surface of the circuit board. Is done. In this state, the electric wire connector 1 is positioned with respect to the board connector 101 in the front-rear direction, the left-right direction, and the up-down direction.

  In this way, the electric wire connector 1 is simply inserted into the left and right board-side positioning engaging portions 122 of the board-side housing 111 from the upper ends thereof, and the electric wire connector 1 is connected to the board connector 101. Can be accurately positioned. Therefore, the operator can easily and accurately position the wire connector 1 with respect to the board connector 101 in a short time.

  Moreover, it is only necessary to move the electric wire connector 1 in a direction orthogonal to the surface of the circuit board, and it is not necessary to move in a direction parallel to the surface of the circuit board. Therefore, the mounting density of the circuit board is high, a large number of electronic components, electrical parts, etc. are already mounted on the surface of the circuit board, there is no space around the board connector 101, and the wire connector 1 is connected to the circuit board. Even if the wire connector 1 cannot be moved in a direction parallel to the surface, the wire connector 1 can be positioned with respect to the board connector 101.

  Subsequently, the operator rotates the electric wire connector 1 with respect to the board connector 101. Specifically, the electric wire connector 1 is rotated so that the rear end of the electric wire side housing 11 approaches the surface of the board side housing 111 and the circuit board, that is, falls. In this case, since the electric wire side positioning engagement portion 22 and the substrate side positioning engagement portion 122 are engaged, and the electric wire side rotation shaft locking portion 21 and the substrate side rotation shaft locking portion 121 are engaged, The electric wire connector 1 rotates with the electric wire side positioning engagement portion 22 and the electric wire side rotation shaft lock portion 21 as the rotation axis, and the rotation axis does not shift, so that it can be rotated in a stable state. 101 does not come off. Therefore, the operator can rotate the electric wire connector 1 with respect to the board connector 101 easily and in a short time.

  Note that the tip end portion 21a of the electric wire side rotating shaft locking portion 21 protruding from the electric wire side positioning engaging portion 22 communicates with the rotation permissible hole 121c and the engaging hole 121a. Along with this, it is possible to smoothly displace from the rotation allowable hole 121c into the engagement hole 121a.

  Further, during the rotation of the wire connector 1, the pinching arm 164 a of the contact portion 164 of the board side terminal 161 is inserted into the terminal of the wire side housing 11 together with the terminal protection portion 114 as shown in FIG. The electric wire side terminal accommodating recess 13 enters through the opening 13a. And the contact part 64 of the electric wire side terminal 61 is inserted between the right and left pinching arms 164a. Further, the substrate side center lock portion 133 enters and is housed in the center lock housing portion 18a.

  Then, as shown in FIG. 9 (a), when the rotation is completed and the wire connector 1 is in a posture in which the front-rear direction is parallel to the front-rear direction of the board connector 101 or the surface of the circuit board, The part 23 engages with the board side rotation end lock part 123, and the rear end of the wire side housing 11 is locked to the rear end of the board side housing 111. Specifically, the engagement protrusion 23b of the elastic arm portion 23a included in the electric wire side rotation end lock portion 23 enters the engagement hole 123a included in the substrate side rotation end lock portion 123, and engages with the lower surface of the engagement beam 123b. Match. When locking, the elastic arm portion 23a is a cantilever-like member having elasticity and the engaging projection 23b is formed on the elastic arm portion 23a, so the operator needs to operate the operation portion 23c. It is only necessary to press down the rear end of the electric wire side housing 11 and press it against the board side housing 111, and it is not necessary to exert a large force for pressing.

  Further, when locking, the operator can elastically restore the original posture after the elastic arm 23a is elastically deformed when the engaging projection 23b passes the rear surface of the engaging beam 123b. A click feeling can be sensed through a finger or the like that is pushing down 11. Therefore, the operator can recognize that the rear end of the electric wire side housing 11 is locked to the rear end of the board side housing 111.

  When the rotation of the electric wire connector 1 is completed, the distal end portion 21a of the electric wire side rotation shaft lock portion 21 enters the engagement hole 121a of the board side rotation shaft lock portion 121 and engages with the lower surface of the engagement beam 121b. Match. That is, the electric wire side rotating shaft lock portion 21 and the substrate side rotating shaft lock portion 121 are engaged, and the front end of the electric wire side housing 11 is locked to the front end of the substrate side housing 111. Therefore, if the rear end of the electric wire side housing 11 and the rear end of the substrate side housing 111 are locked, the front end of the electric wire side housing 11 and the front end of the substrate side housing 111 are also locked.

  Thus, in the state immediately after the rotation of the electric wire connector 1 is completed, as shown in FIGS. 9 (a), 10 (a), and 11 (a), the rotation operation unit 30 is in the unlocked position. Therefore, the longitudinal direction of the operation rod portion 35 coincides with the width direction of the electric wire side housing 11 and the board side housing 111. That is, the operation rod portion 35 is in the horizontal direction. Therefore, the engagement umbrella part 33b is not engaged with the engagement collar part 133b. That is, the wire side center lock portion 33 and the substrate side center lock portion 133 are not engaged, and the intermediate portion between the substrate side housing 111 and the wire side housing 11 is not locked.

  Therefore, the operator changes the posture of the rotary operation unit 30 from the unlocked posture to the locked posture. Specifically, the operation rod portion 35 is rotated 90 degrees in the clockwise direction in FIG. 10, and as shown in FIGS. 9B, 10 B, and 11 B, the length of the operation rod portion 35 is increased. The direction is made to coincide with the front-rear direction of the electric wire side housing 11 and the board side housing 111. That is, the operation bar portion 35 is oriented vertically. Note that if the operating rod portion 35 is rotated 90 degrees or more, it interferes with the rotation stopper portion 12b, so that the operating rod portion 35 does not rotate beyond the locked posture. Therefore, even if the operator handles the operation rod portion 35 roughly, the operator can surely be in the locked posture.

  Thereby, the engagement umbrella part 33b enters the engagement space 133c and engages with the engagement collar part 133b. That is, the electric wire side center lock portion 33 and the substrate side center lock portion 133 are engaged, and the intermediate portion between the substrate side housing 111 and the electric wire side housing 11 is locked. Therefore, the electric wire side housing 11 and the board side housing 111 are locked at the front end, the rear end, and the intermediate portion, and the electric wire connector 1 and the board connector 101 are securely fitted. In addition, a 90-degree change in posture of the operation rod portion 35 that is a relatively long member from the horizontal direction to the vertical direction can be visually recognized from above the wire connector 1 very clearly. Therefore, the operator can surely recognize in a short time that the electric wire connector 1 and the board connector 101 are securely fitted.

  On the other hand, in a state where the wire connector 1 and the board connector 101 are not securely fitted, the board-side center lock part 133 is not completely accommodated in the center lock accommodation part 18a, so that the engagement umbrella part 33b is engaged. It is impossible to enter the space 133c, and the rotation operation unit 30 cannot be locked. That is, the fact that the posture of the rotation operation unit 30 can be in the locked posture means that the electric wire connector 1 and the board connector 101 are securely fitted, so that the operator unlocks the posture of the rotation operation unit 30. By changing from the posture to the locked posture, it is possible to reliably recognize that the fitting is not in a semi-fitted state. Further, when the posture of the rotary operation unit 30 cannot be the locked posture, the operator can recognize that the half-fitting is in an incomplete fitting state.

  Note that when the posture of the rotation operation unit 30 becomes the locked posture, the locked posture maintaining convex portion 27b enters the posture maintaining concave portion 32 and engages. Therefore, unless the operator rotates the rotation operation unit 30 with fingers or the like, even if a weak external force such as vibration is applied to the rotation operation unit 30 or the electric wire side housing 11, the posture of the rotation operation unit 30 does not change from the locked posture. Therefore, the fitting between the wire connector 1 and the board connector 101 is reliably maintained.

  Further, the left and right electric wire side positioning engagement portions 22 of the electric wire side housing 11 are inserted into the left and right substrate side positioning engagement portions 122 having a concave groove shape formed in the side wall portion 117 of the substrate side housing 111 and extending in the vertical direction. Has been. Therefore, the electric wire side housing 11 is not displaced in the front-rear direction of the board side housing 111 with respect to the board side housing 111. Therefore, even when the electric wire connector 1 receives an external force, the elastic arm portion 23a may be displaced in the front-rear direction with respect to the engagement beam 123b, or may be deformed by being pressed against the engagement beam 123b. Therefore, the engagement between the electric wire side rotation end lock portion 23 and the board side rotation end lock portion 123 is not released. Thus, for example, even when an external force such as pulling the electric wire 91 or wrinkling is applied in the state shown in FIGS. 9B and 10B, the electric wire Since the engagement between the side rotation end lock portion 23 and the board side rotation end lock portion 123 is not unnecessarily released, the fitting between the wire connector 1 and the board connector 101 is reliably maintained.

  Further, as shown in FIGS. 9B and 10B, when the rotation operation unit 30 is in the locked position, one end in the longitudinal direction of the operation bar unit 35 (the right end in FIG. 10B) is the electric wire. The operation part 23c of the side rotation end lock part 23 approaches or comes into contact with the operation part 23c and prevents the operation part 23c, which is a member connecting the free ends of the elastic arm parts 23a, from being displaced in the front end direction. Therefore, for example, even when the operator's fingers, work implements, other members, etc. accidentally contact the operation portion 23c, the engagement protrusion 23b formed on the elastic arm portion 23a is displaced and engaged. The engagement with the beam 123b is not released. That is, the rotation operation unit 30 in the locked posture exhibits the lock release preventing function of the distal end lock mechanism. Thereby, fitting with the electric wire connector 1 and the board | substrate connector 101 is maintained more reliably.

  In addition, in the state where fitting was completed, since the contact part 64 of the electric wire side terminal 61 is inserted between the sandwiching arms 164a of the contact part 164 of the board side terminal 161, the conductive wire of the electric wire 91 is in contact. The electric wire side terminal 61 and the board side terminal 161 are electrically connected to the mating terminal member formed on the circuit board.

  Here, only the example in which the electric wires 91 are wired so as to extend rearward from the rear end of the electric wire side housing 11 has been described. However, the electric wires 91 are located above the top plate portion 12 of the electric wire side housing 11. It may be wired so as to extend toward the side.

  Thus, in the present embodiment, the wire-to-board connector includes the wire connector 1 having the wire-side terminal 61 connected to the wire 91 and the wire-side housing 11 loaded with the wire-side terminal 61, and the wire side. A board-side terminal 161 that comes into contact with the terminal 61 and a board connector 101 that is loaded with the board-side terminal 161 and has a board-side housing 111 that fits into the electric wire-side housing 11 are mounted on the circuit board. The center lock mechanism further includes a center lock mechanism that locks the electric wire side housing 11 and the substrate side housing 111, and the center lock mechanism includes a substrate side center lock portion 133 formed at the base end of the substrate side housing 111, and the electric wire side housing 11. A wire-side center lock portion 33 that engages with the board-side center lock portion 133. The wire-side center lock portion 33 is connected to an operation rod portion 35 that is visible from above the substrate. Reference numeral 35 denotes a locked posture in which the wire side center lock portion 33 engages with the board side center lock portion 133 by the posture maintaining means, and an unlocked posture in which the wire side center lock portion 33 does not engage with the board side center lock portion 133. Respectively maintained.

  Thereby, in the fitting operation for fitting the electric wire side housing 11 and the board side housing 111, the completion of the fitting of the electric wire connector 1 and the board connector 101 can be easily and reliably visually recognized from above the board. Further, the fitting operation can be easily performed in a short time, the fitting state of the electric wire connector 1 and the board connector 101 can be reliably maintained, and the occurrence of half-fitting can be surely prevented, In addition, the space required for the fitting operation can be reduced. In addition, the configuration of the wire connector 1 and the board connector 101 is simple and low in cost, can be reduced in size and height, and can be improved in reliability.

  Further, a base end locking mechanism that locks the base ends of the electric wire side housing 11 and the board side housing 111 and a distal end locking mechanism that locks the distal ends of the electric wire side housing 11 and the board side housing 111 are further provided. The center lock mechanism locks between the proximal end and the distal end of the electric wire side housing 11 and the board side housing 111, and the operation rod portion 35 makes the distal end lock mechanism unlockable in the locked posture. Hold. Therefore, even when the distal end lock mechanism receives an external force, the lock between the distal ends of the wire side housing 11 and the board side housing 111 is not released. The fitting with 101 is reliably maintained.

  Further, the distal end locking mechanism includes a substrate side rotation end locking portion 123 formed at the distal end of the substrate side housing 111, and a substrate side rotation end locking portion 123 formed at the distal end of the wire side housing 11. The operation rod portion 35 includes an engaging electric wire side rotation end lock portion 23, and one end in the longitudinal direction of the operation rod portion 35 prevents the electric wire side rotation end lock portion 23 from being displaced. Therefore, even when the electric wire side rotation end lock portion 23 receives an external force, the engagement with the substrate side rotation end lock portion 123 is not released. The fitting is reliably maintained.

  Furthermore, it has a positioning mechanism which positions the electric wire side housing 11 and the board | substrate side housing 111, and the positioning mechanism is a base end of the electric wire side housing 11 so that it may move to a direction perpendicular | vertical to the fitting surface of the board | substrate side housing 111. And the base end locking mechanism rotatably holds the positioned base end of the electric wire side housing 11 and the base end of the board side housing 111 so as to be distant from the distal end. The end lock mechanism rotates around the base end, and locks the distal ends of the electric wire side housing 11 and the board side housing 111 fitted with the fitting surfaces parallel to each other. Therefore, the fitting operation for fitting the electric wire side housing 11 and the board side housing 111 can be easily performed in a short time, and the fitting state of the electric wire connector 1 and the board connector 101 can be reliably maintained. The occurrence of half-fitting can be reliably prevented, and the space required for the fitting work can be reduced.

  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 wire-to-board connector.

DESCRIPTION OF SYMBOLS 1 Electric wire connector 11 1st housing 12 Top plate part 12a Rotation operation recessed part 12b Rotation stopper part 13 Electric wire side terminal accommodation recessed part 13a Terminal insertion opening 13b Electric wire insertion opening 14 Main-body part 15 Bearing hole 15a Main port part 15b Counterbore part 15c Expansion diameter Part 16 Notch part 17, 117 Side wall part 18 Locking recessed part 18a Center lock accommodating part 18b Rotation operation part holding part 21 Electric wire side rotating shaft locking part 21a Tip part 22 Electric wire side positioning engagement part 22a Bar member 23 Electric wire side rotation end Locking portion 23a Elastic arm portion 23b Engaging projection 23c Operation portion 27a Unlocked posture maintaining convex portion 27b Locking posture maintaining convex portion 30 Rotating operation portion 31 Disk portion 31a Large diameter portion 31b Small diameter portion 32 Posture maintaining concave portion 33 Electric wire side center lock Part 33a Shaft leg part 33b Engagement umbrella part 35 Operation bar part 61 Electric wire side terminals 62 and 162 Control part 63, 163, 183 connection part 64, 164, 961a contact part 65 locking part 91 electric wire 101, 901 board connector 111 board side housing 112 bottom plate part 112a terminal accommodating recess 113 fitting space 114 terminal protection part 114a electric wire side Terminal insertion openings 115, 831 Rear wall 115a Metal housing recess 121 Substrate side rotation shaft locking portion 121a, 123a Engagement holes 121b, 123b Engagement beam 121c Rotation allowance hole 121d Engagement bottom plate 122 Substrate side positioning engagement part 123 Substrate Side rotation end lock portion 123c Permissible hole 133 Substrate side center lock portion 133a Leg portion 133b Engagement flange portion 133c Engagement space 161 Substrate side terminal 164a Clamping arm 181 Mounting bracket 182 Solder tail portion 801 Cable connectors 811 and 911 Housing 830 Moving member 832 The plate portion 834 side end portion 913 receiving recess 914 engaging section 961 terminal 961b connected legs 961c attachment leg

Claims (4)

(A) a first connector having a first terminal connected to the electric wire, and a first housing loaded with the first terminal;
(B) a second terminal that comes into contact with the first terminal, and a second connector that is loaded on the substrate and has a second housing that is loaded with the second terminal and that fits into the first housing. A wire-to-board connector,
(C) further comprising a center lock mechanism for locking the first housing and the second housing;
(D) The center lock mechanism includes a second center lock portion formed at a proximal end of the second housing, and a first center lock portion that is attached to the first housing and engages with the second center lock portion. Including
(E) A rotation operation rod that is visible from above the substrate is connected to the first center lock portion,
(F) The rotation operation rod is locked by the posture maintaining means so that the first center lock portion engages with the second center lock portion, and the first center lock portion does not engage with the second center lock portion. A wire-to-board connector characterized by being maintained in a locked position. A proximal locking mechanism that locks the proximal ends of the first housing and the second housing; and a distal locking mechanism that locks the distal ends of the first housing and the second housing;
The center lock mechanism locks between a proximal end and a distal end of the first housing and the second housing,
The wire-to-board connector according to claim 1, wherein the rotating operation rod holds the distal end locking mechanism in an unlocked state in a locked posture. The distal end locking mechanism includes a second distal end lock portion formed at a distal end of the second housing, and a second distal end lock portion formed at a distal end of the first housing. An engaging first distal end lock;
The wire-to-board connector according to claim 2, wherein one end in a longitudinal direction of the rotation operation rod prevents displacement of the first distal end lock portion in a locked posture. A positioning mechanism for positioning the first housing and the second housing;
The positioning mechanism guides the base end of the first housing to move in a direction perpendicular to the fitting surface of the second housing to position the base end of the second housing;
The proximal lock mechanism rotatably holds the positioned proximal end of the first housing and the proximal end of the second housing;
The distal end locking mechanism rotates about a base end and locks the distal ends of the first housing and the second housing that are fitted with fitting surfaces parallel to each other. Wire-to-board connector as described in 1.

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