JP2011048982A - Floating connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floating connector capable of precisely determining a moving range of a floating housing with respect to a fixed housing. <P>SOLUTION: In the floating connector 100, a floating housing 300 is movably mounted to a fixed housing 200 which is fixed to a circuit board 101, an abutting portion PX in a pitch direction, an abutting portion QX in an insertion and withdrawal direction, and an abutting portion DX in a dual pitch direction which are formed on the floating housing 300, abut on an abutted portion PY in the pitch direction, an abutted portion QY in the insertion and withdrawal direction and an abutted portion DY in the dual pitch direction which are formed on the fixed housing 200. Thus, the moving range of the floating housing 300 in the pitch direction P, the insertion and withdrawal direction Q, and the dual pitch direction D with respect to the fixing housing 200 is determined. A connection portion 500 is formed between the floating housing 300 and the fixed housing 200. The connection portion serves as a resin passage for integrally injection-molding the housings 200, 300 with one metal mould and is finally removed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention includes a fixed housing that is fixed to a circuit board, a floating housing that is movable within a predetermined range with respect to the fixed housing, and a plurality of terminals that connect these housings and have a flexible portion in the middle. The present invention relates to a floating connector in which a floating housing moves relative to a fixed housing by elastic deformation of a flexible portion.

  In a board-to-board connector system in which a plug connector is mounted on one circuit board and a socket connector is mounted on the other circuit board, and they are directly fitted to connect both circuit boards, the mounting position of the plug connector or socket connector is determined. In order to absorb the deviation, one of the connectors needs to be a floating type.

  This type of floating connector includes a fixed housing fixed to a circuit board, a floating housing arranged above the fixed housing, and a terminal that connects these housings and has a flexible portion in the middle. . In such a floating connector, when the mating connector is fitted, the flexible portion of the terminal is elastically deformed so that the floating housing is allowed to move. However, the flexible portion of the terminal is excessively stretched and is plastic. It is necessary to avoid the deformation.

  For this reason, conventionally, as described in the summary of Patent Document 1, each of the plurality of terminals (10) has a contact part housing (2) and a tail part housing (3) separate from the contact part housing (2). The contact portion (11) is attached to the contact portion housing (2), the tail portion (12) is attached to the tail portion housing (3), and the tip of the press-fitting piece (22) in the vicinity of the tail portion (12). (23) is press-fitted into the locking groove (28) of the tail housing (3), and a flexible connecting portion (13) is formed between the contact portion (11) and the tail portion (12) of each terminal (10). The tip (21) of the flexible connecting portion protection piece (18) extending from between the contact portion (11) and the flexible connecting portion (13) of each terminal (10) is formed on the tail housing (3). In the insertion groove (30), the insertion groove (30) Floating type electrical connector to the allowed inserted structure to avoid contact are known (31, 32). In addition, the code | symbol of a parenthesis is a code | symbol described in patent document 1, and is unrelated to drawing of this application.

  In such a floating connector, the contact part housing (2) corresponds to a floating housing, and the tail part housing (3) corresponds to a fixed housing. And the flexible connection part protection piece (18) is formed in the floating housing (2) side of the flexible connection part (13) of the terminal (10), and its tip (21) is fixed to the fixed housing (3). Since the floating housing (2) is moved when the mating connector is fitted, the tip (21) of the flexible connecting portion protection piece (18) is By abutting against the walls (31, 32) of the insertion groove (30), the moving range of the floating housing (2) can be limited to a range where the flexible connecting portion (13) is not plastically deformed.

Japanese Utility Model Publication No. 6-44063

  In the above-described floating connector, the rear end wall (7A, 7B: contact portion) formed in the floating housing (2) is the rear stopper (9A, 9B: contacted portion) formed in the fixed housing (3). ), And the tip (21) of the flexible connecting portion protection piece (18) of the terminal (10) is brought into contact with the wall (31, 32) of the insertion groove (30) of the fixed housing (3). Where the movement range of the housing (2) is limited, the floating housing (2), the fixed housing (3), and the terminal (10) are separately manufactured and assembled.

  That is, in the conventional floating connector, the fixed housing and the floating housing are separately molded by injection molding, and these housings are connected by press-worked (punched) terminals. Therefore, the moving range of the floating housing is determined as an accumulation of manufacturing errors and assembly errors of the floating housing, the fixed housing, and the terminals, and it is difficult to improve the accuracy of the moving range of the floating housing.

  For this reason, there is a possibility that a large variation occurs in the moving range. When the mating connector is fitted to the above-mentioned floating connector, the mating cannot be performed, the fitting is impossible, and the housing is damaged. There is a possibility that troubles such as loss of the floating property by the flexible part due to an excessive force applied to the flexible part may damage the flexible part.

  An object of the present invention, which was created in view of the above circumstances, is to provide a floating connector that can determine a moving range of a floating housing relative to a fixed housing with high accuracy.

  In order to achieve the above object, an invention according to claim 1 includes a fixed housing fixed to a circuit board and a floating housing movable within a predetermined range with respect to the fixed housing. When the mating connector is inserted and removed, the flexible housing is a floating connector in which the floating housing moves relative to the fixed housing by elastic deformation, and the fixed housing of the floating housing And a plurality of terminals mounted on the floating housing in an arrangement direction, that is, a pitch direction, an insertion / extraction direction of the mating connector, and a movement in each direction in a dual pitch direction orthogonal to a plane formed by the pitch direction and the insertion / extraction direction, respectively. In order to limit the range, the pitch direction contact part, the insertion / extraction direction contact part formed in the floating housing, the dual pitch direction When the contact portion and the floating housing move in the respective directions beyond the predetermined range, the pitch direction contact portion, the insertion / removal direction contact portion, and the dual pitch direction contact portion contact each other. In order to limit the movement of the floating housing to the predetermined range, a pitch direction contact portion, an insertion / removal direction contact portion, a dual pitch direction contact portion formed on the fixed housing, the floating housing and the fixed portion The housing is connected to the housing, and the housing is provided with a joint portion which is a resin passage for integrally molding the housing with a single mold and is finally removed.

  According to a second aspect of the present invention, the fixed housing includes a pair of opposing surface portions spaced apart in the pitch direction, and a window portion formed through the opposing surface portion in the pitch direction, and the floating housing Is formed with a pair of opposing wall portions spaced from the inner side surface of each of the opposing surface portions in the pitch direction by a predetermined distance, and projecting in the pitch direction on the outer surface of the opposing wall portion, and is loosely fitted in the window portion. The pitch direction contact portion is an outer surface of the opposing wall portion, the pitch direction contact portion is an inner surface of the opposing surface portion, and the insertion / extraction direction contact portion Are the front and back surfaces of the protrusion in the insertion / extraction direction, and the insertion / removal direction abutting portions are the front and back surfaces of the window portion in the insertion / extraction direction, and the dual pitch direction abutment portion Are the upper and lower surfaces of the dual pitch direction of the protrusion. The dual pitch direction abutted portion is a floating connector according to claim 1 which is the upper and lower surfaces of said dual pitch direction of said window portion.

  The invention according to claim 3 is characterized in that the fixed housing includes a pair of facing surface portions spaced in the pitch direction, a window portion formed through the facing surface portion in the pitch direction, and the insertion / extraction of the window portion. A U-shaped receiving surface provided in the opposing surface portion on the near side in the direction and opened on the near side, and the floating housing extends from the inner surface of each opposing surface portion in the pitch direction. A pair of opposing wall portions spaced apart by a predetermined distance; a projection portion that protrudes in the pitch direction on the outer surface of the opposing wall portion and loosely fits in the window portion; and the outer surface of the opposing wall portion A projecting portion protruding in the pitch direction and inserted inward of the U-shaped receiving surface, and the pitch direction contact portion is an outer surface of the opposing wall portion, and the pitch direction cover The contact portion is an inner surface of the facing surface portion, and the insertion / extraction direction contact portion is The protrusion has a front surface in the insertion / extraction direction and a back surface of the extension portion in the insertion / extraction direction, and the insertion / extraction direction abutting portion includes the front surface of the window portion in the insertion / extraction direction, and A back surface of the U-shaped receiving surface in the insertion / extraction direction, and the dual pitch direction contact portion has upper and lower surfaces of the overhang portion in the dual pitch direction, and the dual pitch direction contact portion. The floating connector according to claim 1, wherein the U-shaped receiving surface has upper and lower surfaces in the dual pitch direction.

  The invention according to claim 4 is characterized in that the fixed housing includes a pair of opposing surface portions spaced in the pitch direction, a window portion formed through the opposing surface portion in the pitch direction, and the insertion / extraction of the window portion. A U-shaped receiving surface provided in the opposing surface portion on the near side in the direction and opened on the near side, and the floating housing extends from the inner surface of each opposing surface portion in the pitch direction. A pair of opposing wall portions spaced apart by a predetermined distance; a projection portion that protrudes in the pitch direction on the outer surface of the opposing wall portion and loosely fits in the window portion; and the outer surface of the opposing wall portion A projecting portion protruding in the pitch direction and inserted inward of the U-shaped receiving surface, and the pitch direction contact portion is an outer surface of the opposing wall portion, and the pitch direction cover The contact portion is an inner surface of the facing surface portion, and the insertion / extraction direction contact portion is The protrusion has a front surface in the insertion / removal direction, and has a rear surface in the insertion / removal direction of the protrusion or a rear surface in the insertion / removal direction of the overhanging portion, The front surface of the window portion in the insertion / extraction direction has a back surface of the window in the insertion / extraction direction or the back surface of the U-shaped receiving surface in the insertion / extraction direction, and the dual pitch direction contact portion is The dual pitch direction upper and lower surfaces of the dual pitch direction of the projecting portion or the dual pitch direction upper and lower surfaces of the projecting portion, and the dual pitch direction contacted portion is the upper and lower surfaces of the window portion of the dual pitch direction or the It is a floating connector of Claim 1 which has the upper and lower surfaces of the said dual pitch direction of a U-shaped receiving surface.

  According to a fifth aspect of the present invention, the floating housing is engaged with the fixed housing so that the floating housing does not fall off from the fixed housing even if the floating housing is shifted to one side in the pitch direction with respect to the fixed housing. It is the floating connector in any one of Claims 1-4 combined.

  According to the floating connector of the present invention, the moving range of the floating housing relative to the fixed housing can be determined with high accuracy.

It is a perspective view which shows a mode that the other party connector was fitted to the floating connector which concerns on one Embodiment of this invention. FIG. 2 is a cross-sectional perspective view of the floating connector and the counterpart connector shown in FIG. 1. It is a perspective view of the terminal of the floating connector shown in FIG. 2, and the terminal of the other party connector. It is a perspective view of the other party connector shown in FIG. It is a perspective view of the floating connector shown in FIG. FIG. 6 is a perspective view of a fixed housing of the floating connector shown in FIG. 5. It is a perspective view of the floating housing of the floating connector shown in FIG. It is explanatory drawing of a mode that a floating housing moves to an insertion / extraction direction or a dual pitch direction with respect to a fixed housing, (a) is a neutral state of a floating housing, (b) is a mode that the floating housing moved upwards in the dual pitch direction. (C) is explanatory drawing which shows a mode that the floating housing moved to the near side of the insertion / extraction direction. It is explanatory drawing of a mode that a floating housing moves to a pitch direction with respect to a fixed housing, (a) is a neutral state of a floating housing, (b) is explanatory drawing which shows a mode that a floating housing moved to the right of the pitch direction. It is. It is explanatory drawing which shows the connection part which connects a floating housing and a fixed housing.

  An embodiment of the present invention will be described with reference to the accompanying drawings.

  As shown in FIGS. 1 and 2, the floating connector 100 according to the present embodiment is mounted on one circuit board 101, and the counterpart connector 400 is mounted on the other circuit board 401. In the figure, P is the arrangement direction of a plurality of terminals mounted on each connector, that is, the pitch direction, Q is the insertion / removal direction of both connectors, and D is the dual pitch direction orthogonal to the surface formed by the pitch direction and the insertion / removal direction. Show.

  In this embodiment, the floating connector 100 is a plug connector and the mating connector (non-floating type) 400 is a socket connector. Conversely, the floating connector 100 may be a socket connector and the mating connector 400 may be a plug connector. Good. In the present embodiment, the arrangement of the circuit boards 101 and 401 is substantially orthogonal, but the angle may be other than 90 degrees or may be parallel.

  The floating connector (plug connector) 100 includes a fixed housing 200 fixed to the circuit board 101, and a floating housing 300 movable within a predetermined range with respect to the fixed housing 200. The housings 200 and 300 can be arranged in the middle. A plurality of terminals 102 each having a bending portion 109 are connected to each other so as to be schematically configured. When the plug connector 100 is inserted into and removed from the mating connector (socket connector) 400, the flexible housing 109 is elastically deformed so that the floating housing 300 moves relative to the fixed housing 200, and each circuit of each connector 100, 400 Absorbs the displacement of the mounting position with respect to the substrates 101 and 401.

  As shown in FIGS. 1 to 3, the terminal (plug terminal) 102 of the plug connector 100 is press-fitted and fixed in a lead portion 103 fixed to the circuit board 101 by soldering and a press-fitting groove 201 formed in the fixed housing 200. A first press-fit portion 104, a second press-fit portion 105 that is press-fitted and fixed in a press-fit groove 301 formed in the floating housing 300, a contact portion 106 that can contact a terminal (socket terminal) 402 of the socket connector 400, a lead portion 103, A first base 107 connected to the one press-fit portion 104, a second base 108 connected to the second press-fit portion 105 and the contact portion 106, a flexible portion 109 connecting the first base 107 and the second base 108, and the like. Manufactured by punching. The flexible portion 109 has a shape in which a thin wire-like member meanders in an S shape, and is elastically deformed in a predetermined range in the pitch direction P, the insertion / extraction direction Q, and the dual pitch direction D.

  The socket terminal 402 includes a lead portion 403 that is fixed to the circuit board 401 by soldering, a press-fit portion 406 that is press-fit and fixed in a press-fit groove 405 formed in a housing (socket housing) 410 of the socket connector 400, and a contact between the plug terminal 102. The contact portion 407 that can come into contact with the portion 106 is provided, and is manufactured by punching and bending the lead portion 403 with respect to the press-fit portion 406 at a substantially right angle. The contact portion 407 is formed in a fork shape, and the flat contact portion 106 of the plug terminal 102 is sandwiched therebetween. As shown in FIG. 2, the lead portions 403 of the socket terminal 402 are arranged in a staggered manner in which the adjacent ones in the pitch direction P are distributed in the dual pitch direction D, whereas the lead portions of the plug terminal 102 103 is aligned (non-staggered) on one side of the fixed housing 200.

  As shown in FIGS. 2 and 4, the socket connector 400 is formed in a socket housing 410 formed in a substantially rectangular parallelepiped shape, and at both ends in the longitudinal direction (pitch direction P) of the socket housing 410 along the insertion / extraction direction Q. Guide holes 499, a plurality of slits 408 formed in the socket housing 410 between the guide holes 499 at intervals in the pitch direction P, and socket terminals 402 disposed in the respective slits 408. .

  As shown in FIGS. 1, 2, and 5, the plug connector 100 has a fixed housing 200 fixed to the circuit board 101, and a predetermined pitch direction P, insertion / extraction direction Q, and dual pitch direction D with respect to the fixed housing 200. A floating housing 300 that can move within a range and a plug terminal 102 that connects the housings 200, 300. When the socket connector 400 is inserted into and removed from the socket connector 400, a flexible portion 109 provided in the middle of the plug terminal 102 is provided. By elastically deforming, the floating housing 300 can move in a predetermined range in the pitch direction P, the insertion / extraction direction Q, and the dual pitch direction D with respect to the fixed housing 200.

  That is, the floating housing 300 has a pitch direction contact portion PX, an insertion / removal direction contact portion QX, a dual pitch in order to limit movement in each direction of the pitch direction P, the insertion / removal direction Q, and the dual pitch direction D to a predetermined range. A direction contact portion DX is formed. On the other hand, the fixed housing 200 has a pitch direction contact portion PX and an insertion / removal direction contact when the floating housing 300 tries to move in each direction beyond the predetermined range. The portion QX and the dual pitch direction contact portion DX are in contact with each other so that the movement of the floating housing 300 is restricted to the predetermined range, the pitch direction contact portion PY, the insertion / removal direction contact portion QY, and the dual pitch direction contact portion Part DY is formed.

  The floating housing 300 having the contact portions PX, QX, and DX and the fixed housing 200 having the contact portions PY, QY, and DY will be described in detail below.

  As shown in FIGS. 5 and 6, the fixed housing 200 is extended along the pitch direction P to the front side in the insertion / removal direction Q from both ends of the base portion 210 formed in a substantially plate shape. A pair of opposed surface portions 211, a window portion 212 formed through the opposed surface portion 211 in the pitch direction P, and a U-shape is formed so that the near side is open to the near side in the insertion / extraction direction Q of the window portion 212. And a U-shaped receiving surface 250. As shown in FIGS. 1 and 5, the fixed housing 200 is fixed to the circuit board 101 by soldering the dummy pins 600 press-fitted into the facing surface portion 211 and the lead portions 103 of the plug terminals 102 to the circuit board 101. The

  As shown in FIGS. 5 and 7, the floating housing 300 includes a main body 310 formed along the pitch direction P, and disposed at both ends of the main body 310 in the pitch direction P from the inner surface of the facing surface 211. A pair of opposing wall portions 311 spaced apart from each other by a predetermined distance, a protruding portion 312 that protrudes from the outer surface of the opposing wall portion 311 in the pitch direction P and is loosely fitted in the window portion 212, and an outside of the opposing wall portion 311 A protruding portion 397 protruding in the pitch direction P from the side surface and inserted inward of the U-shaped receiving surface 250, and extending from the front side in the insertion / extraction direction Q of the protruding portion 397 toward the front side of the socket connector 400. A guide hole 499 (see FIG. 4).

  As shown in FIG. 8A, in the state where the protrusion 312 of the floating housing 300 is located at the center of the window 212 of the fixed housing 200 (neutral state in the insertion / extraction direction Q and the dual pitch direction D), A predetermined gap q1 (for example, 0.2 mm) is formed between the front front surface 312a in the insertion / extraction direction Q and the front front surface 212a in the insertion / extraction direction Q of the window portion 212, and the rear surface 312b of the protrusion 312 in the insertion / extraction direction Q and the window portion. A predetermined gap q2 (for example, 0.2 mm) is formed between the inner surface 212b in the insertion / extraction direction Q of 212, and the upper surface 312c in the dual pitch direction D of the protrusion 312 and the upper surface 212c in the dual pitch direction D of the window 212. A predetermined gap d1 (for example, 0.2 mm) is formed between the lower surface 312d of the protrusion 312 in the dual pitch direction D and the dual pitch direction of the window 212. Predetermined gap d2 (e.g. 0.2 mm) is formed between the lower surface 212d.

  As a result, the floating housing 300 in the neutral state can move with respect to the fixed housing 200 within a range of ± 0.2 mm in the insertion / extraction direction Q, and can also move within the range of ± 0.2 mm in the dual pitch direction D (FIG. 8 ( b), see FIG. 8C). Here, the front surface 312a and the back surface 312b of the protrusion 312 in the insertion / extraction direction Q correspond to the insertion / extraction direction contact portion QX, and the front surface 212a and the back surface 212b of the window portion 212 in the insertion / extraction direction Q are contacted in the insertion / extraction direction. The upper surface 312c and the lower surface 312d of the protrusion 312 in the dual pitch direction D correspond to the dual pitch direction contact portion DX, and the upper surface 212c and the lower surface 212d of the window 212 in the dual pitch direction D correspond to the dual pitch direction. This corresponds to the contacted portion DY. The dimensions (0.2 mm) of each of the predetermined gaps q1, q2, d1, and d2 may be partially or entirely different.

  As shown in FIG. 9A, in the state in which the floating housing 300 is disposed in the center in the pitch direction P between the inner surfaces of the left and right facing surface portions 211 of the fixed housing 200 (neutral state in the pitch direction P), The gap between the inner side surface of the opposed surface portion 211 of 200 and the outer surface of the opposed wall portion 311 of the floating housing 300 is the same on the left and right sides, and is a predetermined gap p (eg, 1.35 mm).

  Thereby, the floating housing 300 in the neutral state can move in the pitch direction P within a range of ± 1.35 mm with respect to the fixed housing 200 (see FIG. 9B). Here, the outer side surface of the opposing wall portion 311 corresponds to the pitch direction contact portion PX, and the inner side surface of the opposing surface portion 211 corresponds to the pitch direction contact portion PY. Of course, the dimension (1.35 mm) of the predetermined gap p is not limited to this value.

  The protrusion amount L (for example, 3.0 mm) in the pitch direction P from the outer surface of the opposing wall portion 311 of the protruding portion 312 shown in FIG. 7 causes the floating housing 300 to be fixed to the fixed housing 200 as shown in FIG. On the other hand, when it is shifted to one side (for example, the right side) of the pitch direction P, it is formed between the outer side surface of the opposing wall portion 311 on the other side (left side) of the pitch direction P and the inner side surface of the opposing surface portion 211. It is larger than the gap p × 2 (1.35 mm × 2). As a result, the protrusion 312 shown in FIG. 5 does not come off from the window 212, and the floating housing 300 is prevented from falling off the fixed housing 200.

  8A, when the floating housing 300 is in the neutral state in the insertion / extraction direction Q and the dual pitch direction D, the insertion / extraction of the back surface 397a in the insertion / extraction direction Q of the overhang portion 397 and the U-shaped receiving surface 250 is performed. A predetermined gap q3 (for example, 0.2 mm) is formed between the rear surface 250a in the direction Q, and the upper surface 397b of the overhang portion 397 in the dual pitch direction D and the upper surface 250b of the U-shaped receiving surface 250 in the dual pitch direction D. A predetermined gap d3 (for example, 0.2 mm) is formed between the lower surface 379c of the overhang portion 379 in the dual pitch direction D and the lower surface 250c of the U-shaped receiving surface 250 in the dual pitch direction D. d4 (for example, 0.2 mm) is formed.

  Thereby, the floating housing 300 in the neutral state can be moved in the range of 0.2 mm toward the back side in the insertion / extraction direction Q with respect to the fixed housing 200 and can also be moved in the range of ± 0.2 mm in the dual pitch direction D. Here, the back surface 397a in the insertion / extraction direction Q of the overhang portion 397 corresponds to the insertion / extraction direction contact portion QX ′, and the back surface 250a of the U-shaped receiving surface 250 in the insertion / extraction direction Q corresponds to the insertion / extraction direction contact portion QY ′. The upper surface 397b and the lower surface 397c of the overhang portion 397 in the dual pitch direction D correspond to the dual pitch direction contact portion DX ′, and the upper surface 250b and the lower surface 250c of the U-shaped receiving surface 250 in the dual pitch direction D correspond to the dual pitch direction contact portion DX ′. This corresponds to the dual pitch direction abutted portion DY ′. The dimensions (0.2 mm) of each of the predetermined gaps q3, d3, d4 may be partially or entirely different.

  In FIG. 8A, since the predetermined gaps d1 and d3, the predetermined gaps d2 and d4, and the predetermined gaps q2 and q3 have the same function, it is sufficient to set only one of them. Moreover, even when both are set, when the dimensions are made different from each other, the one having a small dimension is a substantial movable range. For example, in the present embodiment, since the predetermined gaps q1, q2, d1, and d2 can be secured by the window 212 and the protrusion 312 that is loosely fitted thereto, the overhanging portion 397 and the U-shaped receiving surface 250 are omitted. Is also possible. However, for example, when the predetermined gap q3 is made smaller than the predetermined gap q2, the predetermined gap q3 is a substantially possible range in the back side in the insertion / extraction direction Q. In this case, since the back surface 312b of the protrusion 312 does not contact the back surface 212b of the window 212, the back surface 212b of the window 212 can be omitted. That is, in the present invention, the concept of the window portion 212 includes a portion lacking the back surface 212b (a portion where the back side in the insertion / extraction direction Q is opened).

  As described above, in the present embodiment, the pitch direction contact portion PX, the insertion / removal direction contact portions QX, QX ′, and the dual pitch direction contact portions DX, DX ′ of the floating housing 300 are arranged in the pitch direction of the fixed housing 200. The pitch direction P, the insertion / extraction direction Q, and the dual pitch direction of the floating housing 300 are brought into contact with the contacted portion PY, the insertion / removal direction contacted portions QY and QY ′, and the dual pitch direction contacted portions DY and DY ′, respectively. The movement range of D is limited. Therefore, in order to make the movement range of the floating housing 300 with respect to the fixed housing 200 highly accurate, manufacturing errors of the respective contact portions PX, QX, QX ′, DX, DX ′ of the floating housing 300 and the respective covers of the fixed housing 200 are determined. A situation where manufacturing errors of the contact portions PY, QY, QY ′, DY, and DY ′ are accumulated is avoided, and an assembly error when the floating housing 300 and the fixed housing 200 are connected by the plug terminal 102 is avoided. It is required to be small.

  Therefore, in the present embodiment, as shown in FIG. 10, a resin passage is formed between the floating housing 300 and the fixed housing 200 so that the housings 200 and 300 are integrally molded by a single mold. A connecting portion 500 is provided, and both housings 200 and 300 are connected via the connecting portion 500. The connecting portion 500 allows the floating housing 300 and the fixed housing 200 to be integrally formed by injection molding with a single mold. Therefore, the manufacturing error of each contact portion PX, QX, QX ′, DX, DX ′ of the floating housing 300 And the production errors of the contacted portions PY, QY, QY ′, DY, DY ′ of the fixed housing 200 can be avoided.

  Further, the terminal 102 is mounted on both the housings 200 and 300 in a state where the floating housing 300 and the fixed housing 200 are connected by the connecting portion 500, and then the connecting portion 500 is removed, whereby the floating housing 300 and the fixed housing 200 are removed. Assembling errors when connecting the two at the terminal 102 can be made substantially zero. Specifically, the terminal 102 is inserted into the housings 200 and 300 in a state where the floating housing 300 and the fixed housing 200 are connected by the connecting portion 500, and the first press-fit portion 104 of the terminal 102 is fixed as shown in FIG. After the press-fitting into the press-fitting groove 201 of the housing 200 and the second press-fitting part 105 of the terminal 102 is press-fitted into the press-fitting groove 301 of the floating housing 300, the connecting part 500 shown in FIG. The assembly error that occurs when connecting the terminal 200 to the terminal 102 can be made substantially zero. In addition, since the positioning work of both the housings 200 and 300 and a special jig for that purpose are not required, the cost is reduced.

  As shown in FIG. 10, notches 500 a are formed at both ends of the connecting portion 500, that is, between the connecting portion 500 and both housings 200 and 300. Therefore, if stress is concentrated on the notch 500a by pressing the connecting portion 500 or the like, the connecting portion 500 can be accurately removed at both ends.

  The connecting portion 500 is a portion other than the contact portions PX, QX, DX, QX ′, DX ′ and the contacted portions PY, QY, DY, QY ′, DY ′, and the floating housing 300 and the fixed housing 200. Are connected to each other. Accordingly, the connecting portion 500 can be removed without affecting the accuracy of the predetermined gaps q1, q2, q3, d1, d2, d3, and p. Therefore, even if some burrs remain in both the housings 200 and 300 after the connecting portion 500 is removed, the accuracy of the moving range of the floating housing 300 relative to the fixed housing 200 is not affected as long as these burrs do not contact each other. .

  In order to prevent the floating housing 300 from falling off the fixed housing 200, as described above, the protrusion amount L (for example, 3.0 mm) of the protrusion 312 shown in FIG. 7 is the gap p × shown in FIG. 9B. 2 (1.35 mm × 2). This means that it is difficult to combine the two housings 200 and 300 after they are manufactured separately (possible if the members are bent but may be damaged). In the present embodiment, after the housings 200 and 300 connected by the connecting portion 500 are integrally formed by injection molding with a single mold, the connecting portion 500 is removed from the housing, whereby the floating housing 300 is fixed to the fixed housing 200. It has been obtained floating support so that it can not fall off. As a result, the work of assembling the floating housing 300 into the fixed housing 200 becomes unnecessary, and cost reduction can be promoted.

DESCRIPTION OF SYMBOLS 100 Plug connector as a floating connector 102 Terminal 109 Flexible part 200 Fixed housing 212 Window part 212a Hand front surface 212b Back surface 212c Upper surface 212d Lower surface 250 U-shaped receiving surface 250a Back surface 250b Upper surface 250c Lower surface 300 Floating housing 312 Protrusion 312a Hand Front surface 312b Back surface 312c Upper surface 312d Lower surface 397 Overhang 397a Back surface 397b Upper surface 397c Lower surface 400 Socket connector as mating connector 500 Connecting portion P Pitch direction Q Insertion / extraction direction D Dual pitch direction PX Pitch direction contact portion QX Insertion / removal direction contact Part QX 'Insertion / extraction direction contact part DX Dual pitch direction contact part DX' Dual pitch direction contact part PY Pitch direction contact part QY Insertion / extraction direction contact part QY 'Insertion / extraction direction contact part DY Du Al pitch direction contacted part DY 'Dual pitch direction contacted part

Claims (5)

When a fixed housing fixed to a circuit board and a floating housing movable within a predetermined range with respect to the fixed housing are connected with a plurality of terminals having a flexible portion in the middle, when the mating connector is inserted and removed, A floating connector in which the floating housing moves relative to the fixed housing by elastic deformation of a flexible portion,
The floating housing has an arrangement direction of the plurality of terminals mounted on the fixed housing and the floating housing, that is, a pitch direction, an insertion / extraction direction of the mating connector, and a dual pitch direction orthogonal to a plane formed by the pitch direction and the insertion / extraction direction. In order to limit movement in each direction to a predetermined range, a pitch direction contact portion, an insertion / extraction direction contact portion, a dual pitch direction contact portion formed on the floating housing,
When the floating housing attempts to move in each direction beyond the predetermined range, the floating housing moves by the contact in the pitch direction contact portion, the insertion / removal direction contact portion, and the dual pitch direction contact portion. In order to restrict
The floating housing and the fixed housing are connected to each other, and the housing is a resin passage for integrally molding these housings with a single mold, and finally includes a joint portion that is removed. Floating connector featuring The fixed housing has a pair of opposing surface portions spaced in the pitch direction, and a window portion formed through the opposing surface portion in the pitch direction.
The floating housing is formed with a pair of opposing wall portions spaced in the pitch direction from the inner side surface of each of the opposing surface portions, and projecting in the pitch direction on an outer surface of the opposing wall portion. A loosely fitted projection,
The pitch direction contact portion is an outer surface of the opposing wall portion, and the pitch direction contact portion is an inner side surface of the opposing surface portion;
The insertion / extraction direction contact portion is the front and back surfaces of the protrusion in the insertion / extraction direction, and the insertion / extraction direction contact portion is the front and back surfaces of the window portion in the insertion / extraction direction,
The dual pitch direction contact portion is the upper and lower surfaces of the projection in the dual pitch direction, and the dual pitch direction contact portion is the upper and lower surfaces of the window portion in the dual pitch direction. Floating connector as described. The fixed housing includes a pair of opposed surface portions spaced in the pitch direction, a window portion formed through the opposed surface portion in the pitch direction, and the opposed surface portion on the near side of the window portion in the insertion / extraction direction. And a U-shaped receiving surface formed in a U-shape that is open on the front side, and
The floating housing is formed with a pair of opposing wall portions spaced in the pitch direction from the inner side surface of each of the opposing surface portions, and projecting in the pitch direction on an outer surface of the opposing wall portion. A loosely-fitted protrusion, and an overhang protruding from the outer surface of the opposing wall in the pitch direction and inserted inward of the U-shaped receiving surface,
The pitch direction contact portion is an outer surface of the opposing wall portion, and the pitch direction contact portion is an inner side surface of the opposing surface portion;
The insertion / extraction direction abutting portion has a front surface of the projection portion in the insertion / extraction direction and a back surface of the overhanging portion in the insertion / extraction direction, and the insertion / extraction direction abutted portion is the window portion. A hand front surface in the insertion / extraction direction and a back surface in the insertion / extraction direction of the U-shaped receiving surface,
The dual pitch direction contact portion has upper and lower surfaces of the overhang portion in the dual pitch direction, and the dual pitch direction contact portion has upper and lower surfaces of the U-shaped receiving surface in the dual pitch direction. The floating connector according to claim 1. The fixed housing includes a pair of opposed surface portions spaced in the pitch direction, a window portion formed through the opposed surface portion in the pitch direction, and the opposed surface portion on the near side of the window portion in the insertion / extraction direction. And a U-shaped receiving surface formed in a U-shape that is open on the front side, and
The floating housing is formed with a pair of opposing wall portions spaced in the pitch direction from the inner side surface of each of the opposing surface portions, and projecting in the pitch direction on an outer surface of the opposing wall portion. A loosely-fitted protrusion, and an overhang protruding from the outer surface of the opposing wall in the pitch direction and inserted inward of the U-shaped receiving surface,
The pitch direction contact portion is an outer surface of the opposing wall portion, and the pitch direction contact portion is an inner side surface of the opposing surface portion;
The insertion / extraction direction contact portion has a front surface of the projection portion in the insertion / extraction direction, and has a back surface of the projection portion in the insertion / extraction direction or a back surface of the extension portion in the insertion / extraction direction, and the insertion / extraction The direction contact portion has a front surface in the insertion / extraction direction of the window portion, and has a back surface in the insertion / extraction direction of the window or a back surface in the insertion / extraction direction of the U-shaped receiving surface,
The dual pitch direction contact portion has the upper and lower surfaces of the protrusion in the dual pitch direction or the upper and lower surfaces of the projecting portion in the dual pitch direction, and the dual pitch direction contact portion is the window portion. The floating connector according to claim 1, further comprising upper and lower surfaces of the dual pitch direction or upper and lower surfaces of the U-shaped receiving surface in the dual pitch direction. The floating housing is engaged with the fixed housing so that the floating housing does not fall off from the fixed housing even if the floating housing is shifted to one side in the pitch direction with respect to the fixed housing. 4. The floating connector according to any one of 4 above.

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