JP2020053408A - connector - Google Patents

Abstract

To provide a connector in which breakage is hard to occur even when a load is received.SOLUTION: A connector defines as a connection object a socket connector 1 comprising a socket housing body 4 and a bridge part 4a2 including a pair of legs 4a4 protrusively provided in the socket housing body 4 and a lateral frame part 4a5 connecting the legs 4a4 with each other, and comprises a plug housing 11 including an opening edge 11f into which the socket connector 1 is inserted. The opening edge 11f includes: a pair of release recesses 11a1 in which a top wall part 11a is not formed in an insertion direction in which the socket connector 1 is inserted from the opening edge 11f in such a manner that the legs 4a4 enters the plug housing in a state where the socket connector 1 is inserted and fitted into the plug housing 11; and a protrusive piece 11a2 which is provided between the adjacent release recesses 11a1 and protrudes while forming a non-rugged flat face serial with the top wall part 11a in the insertion direction toward a lower side of the lateral frame part 4a5. Thus, breakage is hard to occur even when a load is received in the insertion direction.SELECTED DRAWING: Figure 17

Description

  The present invention relates to a connector having an accommodation space for accommodating an object to be connected.

  When fitting with an object to be connected, a connector having a housing space in which a housing accommodates the object to be connected is used. Such an object to be connected usually has a projection that is engaged with the inner surface side of the housing of the connector, and a lever portion that engages and disengages the projection with respect to the housing (for example, Patent Document 1).

JP-A-2015-97184

  By the way, some of such mating connectors have a bridge portion that crosses the top surface side of the lever portion. Such a bridge portion has legs on both sides of the lever portion. When the connector is fitted to the connector, the leg contacts the housing of the connector, thereby restricting the insertion operation into the housing space. The total length of the mated connector and the mating connector is increased by the provision of the portion. In recent years, there has been a demand for miniaturization in various fields, such as home electric appliances and in-vehicle electric appliances, and miniaturization is required for each connector mounted thereon. It would be against the request.

  The present invention has been made on the background of the prior art as described above. An object of the present invention is to provide a connector that can be reduced in the direction of insertion into a connector when the connector is fitted to a mating connector.

In order to achieve the above object, the present invention is configured as follows.
That is, the present invention is a connector that is in conductive contact with an object to be connected including a housing body, a bridge portion having a pair of legs protruding from the housing body, and a transverse portion connecting the legs, In a connector including a housing having an opening edge into which an object is inserted, an opening edge of the housing has an escape recess into which each of the legs enters, in a state where a connection object is inserted into the housing from the opening edge and fitted therein. A connector provided between adjacent escape recesses and protruding downward from the horizontal portion.

  ADVANTAGE OF THE INVENTION According to this invention, since it has the escape recessed part which accommodates the leg part of a connection target in a fitting state, size reduction in the fitting state with a connection target is attained. Further, since the housing has the escape concave portion and the projecting piece projecting downward from the horizontal portion, the opening edge has an uneven shape. Therefore, the fitting of the leg of the object to be connected with the concave-convex portion can suppress the twisting of the object to be connected.

  In the present invention, in a fitting state with the object to be connected, the protruding portion is disposed between the horizontal portion and the housing main body, and a tip side of the protruding portion is the horizontal direction in a protruding direction. It may be one that protrudes from the frame.

  By doing so, at the time of the fitting operation with the connection target, the operator can confirm that the fitting operation has been completed by visually observing that the protruding portion protrudes from the horizontal portion. . Therefore, it is possible to prevent the device from being used in a half-fitted state.

  In the present invention, the housing has a bottom wall portion facing the substrate in a mounted state, and the bottom wall portion has a removal recess for exposing the housing main body in a fitted state with the connection object. Can be included.

  By doing so, the worker can come into contact with the housing main body exposed from the removal concave portion at the time of removal. Therefore, the removal operation can be easily performed.

  ADVANTAGE OF THE INVENTION According to this invention, the size reduction in the insertion direction of a connector can be implement | achieved in the state of fitting with a connection object.

FIG. 3 is an exemplary perspective view showing a state where the socket connector of the embodiment and the linear conductor are conductively connected; FIG. 2 is a perspective view showing the socket connector of FIG. 1. The front view which shows the socket connector of FIG. FIG. 3 is a rear view showing the socket connector of FIG. 2. FIG. 3 is a plan view showing the socket housing of FIG. 2. The bottom view which shows the socket housing of FIG. FIG. 3 is a right side view showing the socket housing of FIG. 2. FIG. 2 is a perspective view showing the socket terminal of FIG. 1. Sectional drawing which shows the socket terminal of FIG. FIG. 2 is an exemplary perspective view showing a retainer included in the socket connector of FIG. 1; FIG. 9 is a perspective view showing a state where a linear conductor is connected to the socket terminal of FIG. 8. FIGS. 2A and 2B are explanatory diagrams showing a state in which a terminal is inserted into the socket housing of FIG. 1, wherein FIG. 1A shows a state before insertion, and FIG. The front view of the socket connector of FIG. FIG. 13 is a cross-sectional view taken along a line SA-SA in FIG. 13 showing a state in which the terminal is fixed to the socket housing by moving the retainer, and FIG. 13A shows a state before the terminal is fixed; Indicates a state in which the fixing of the terminal is completed. FIG. 14 is a sectional view taken along line SB-SB of the socket connector of FIG. 13. FIG. 14 is a sectional view taken along line SC-SC of FIG. 13. The perspective view which shows the plug connector which the socket connector of FIG. FIG. 18 is a perspective view showing the bottom surface side of the plug connector of FIG. 17. FIG. 18 is an explanatory diagram showing a state where the socket connector of FIG. 2 is fitted with the plug connector of FIG. 17. FIG. 18 is a perspective view showing a fitting structure including the socket connector of FIG. 1 and the plug connector of FIG. 17; FIG. 21 is a plan view showing the fitting structure of FIG. 20. FIG. 21 is a bottom view showing the fitting structure of FIG. 20. Sectional drawing which shows the fitting structure of FIG.

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

  In the specification, the claims and the drawings, the width direction along the longitudinal direction (the arrangement direction of the plug terminals 10) along the longitudinal direction of the plug connector 2 shown in FIGS. The direction, the height direction of the plug connector 2 is defined as the Z direction, and the side of the plug connector 2 in the height direction Z is defined as “upper side”, and the board P side is defined as “lower side”. Note that the description in the up-down direction and the front-back direction does not limit the use direction of the plug connector 2 of the present invention.

Embodiment (FIGS. 1 to 23):
The plug connector 2 as a “connector” of the present embodiment includes a plug terminal 10 that is electrically connected to the socket connector 1 as a “connection object”. The plug connector 2 includes a plug housing 11 and a plurality of plug terminals 10. The socket connector 1 includes a socket terminal 6 that electrically connects the plug terminal 10 and the linear conductor 5, a socket housing 3 that holds the socket terminal 6, and a retainer 7. The linear conductor 5 includes a conductive portion 5a made of a conductive metal and an insulating coating 5b covering the conductive portion 5a.

[Socket housing]
The socket housing 3 is made of an insulating resin as shown in FIGS. 1 to 7 and is formed as a substantially rectangular parallelepiped. The socket housing 3 has a socket housing main body 4, a bridge portion 4a2, and a retainer 7.

[Socket housing body]
The socket housing body 4 has a top surface 4a, a bottom surface 4f, a side wall 4b, and a terminal housing 4c.

  The top surface part 4a is arranged on the upper side in the socket housing 3. The top surface portion 4a has a protrusion 4a1, and a bridge portion 4a2 is provided on the upper surface thereof. The protruding portion 4a1 protrudes upward and engages with the lock portion 11a3 of the plug connector 2. The bridge portion 4a2 has two legs 4a4 arranged on both sides of the unlocking piece 4a3 in the width direction X, and a horizontal portion 4a5 connecting the legs 4a4. The horizontal portion 4a5 is disposed so as to bridge the upper side of the unlocking piece 4a3 along the width direction X. By arranging such a bridge portion 4a2, it is possible to prevent the lock release piece 4a3 from being inadvertently contacted. Further, when the lock release piece 4a3 is pulled upward due to an erroneous operation, the deformation can be controlled by the bridge portion 4a2, so that damage or the like can be suppressed.

  The bottom surface part 4f is arranged on the lower side in the socket housing 3. The bottom surface portion 4f has a bottom surface side protrusion 4f1 that protrudes downward from the opposite side on the side of an insertion opening 4c1 described later in the front-rear direction Y. In a state where the socket connector 1 is fitted with the plug connector 2, the worker can easily pull out the socket connector 1 from the plug connector 2 by hooking a finger on the bottom side projection 4 f 1.

  The terminal accommodating portion 4c is a space penetrating the socket housing 3 along the front-rear direction Y as shown in FIGS. 14 to 16, and accommodates the socket terminals 6 one by one. A plurality of terminal accommodating portions 4c are arranged in parallel along the width direction X. In particular, in the present embodiment, such rows of the terminal accommodating portions 4c are provided in two upper and lower stages. The terminal accommodating portion 4c has an insertion opening 4c1 into which the socket terminal 6 is inserted. An insertion groove 4c2 is provided at the lower end side of the terminal accommodating portion 4c and at one end side in the width direction X along the front-rear direction Y which is the insertion direction of the socket terminal 6 from the insertion opening 4c1.

  The insertion groove 4c2 is formed in a size and shape that allows the positioning protrusion 8b of the socket terminal 6 described later to be inserted. The insertion groove 4c2 has a step 4c3 extending the groove width on the back side, and the lance 4d extends from the step 4c3. By providing such a step portion 4c3, a displacement space S where the lance 4d can be sufficiently elastically deformed along the width direction X (the arrangement direction of the socket terminals 6) is formed (see FIGS. 15 and 16).

  The lance 4d is inside the insertion groove 4c2 and has a cantilever shape extending from the insertion opening 4c1 side of the terminal accommodating portion 4c toward the back side. The lance 4d has an elastic piece 4d1 and a locking projection 4d2. When the socket terminal 6 is inserted into the terminal accommodating portion 4c, the elastic piece 4d1 is pressed by the socket terminal 6 and elastically deforms in the width direction X. The locking projection 4d2 is provided on the free end side of the elastic piece 4d1 and protrudes toward the inside of the insertion groove 4c2. The locking projection 4d2 is locked to the positioning projection 8b of the socket terminal 6 inserted into the terminal accommodating portion 4c to prevent the socket terminal 6 from coming off.

[Retainer]
The retainer 7 is made of an insulating resin and has a substantially rectangular parallelepiped shape along the width direction X as shown in FIG. Then, the socket housing body 4 is inserted into the socket housing body 4 through a retainer insertion opening 4e provided on the bottom surface. The retainer 7 is provided with a plurality of terminal insertion holes 7a through which the socket terminals 6 are inserted along the width direction X. A locking portion 7b that protrudes upward from the rear and lower side of each terminal insertion hole 7a and locks to the socket terminal 6 is provided. The locking portion 7b has an inclined portion 7b1 which is inclined so as to be higher from the near side to the far side in the insertion direction. When inserting the socket terminal 6 into the terminal insertion hole 7a of the retainer 7, the socket terminal 6 is guided toward the back along the inclined portion 7b1. Similarly, a retaining portion 7b is provided on the upper surface of the retainer 7.

(Socket terminal)
The socket terminal 6 is formed by bending a single conductive metal plate, and has a contact connection portion 8 and a linear conductor connection portion 9 as shown in FIGS.

  The contact connecting portion 8 has a box portion 8a as a “cylindrical main body portion”, a positioning protrusion 8b, a bent portion 8c, and an elastic contact piece 8d.

  The box portion 8a has a substantially rectangular cylindrical shape, and has a top wall portion 8a1 and a bottom wall portion 8a2. The box portion 8a has a connection space 8a3 into which the plug contact portion 10a of the plug terminal 10 is inserted, and a rear end of the box portion 8a engages with a locking portion 7b of the retainer 7. A stop 8a4 is provided. Further, a first contact portion 8a6 protruding toward the connection space 8a3 is provided on the inner surface 8a5 of the ceiling wall portion 8a1. In particular, the top wall portion 8a1 of the present embodiment has two first contact portions 8a6 along the front-rear direction Y.

  The positioning projection 8b projects downward from the bottom wall 8a2. Specifically, it is formed by projecting a metal plate forming the bottom wall portion 8a2 downward, and further bending the metal plate in a substantially inverted U-shape. The positioning projection 8b is provided so as to be elastically deformable.

  The bent portion 8c is a plate-like piece connected to the positioning protrusion 8b, and is formed by bending in the width direction X from the end of the positioning protrusion 8b along the height direction Z.

  The elastic contact piece 8d is provided so as to be connected to the distal end side of the bent portion 8c, and extends toward the inside of the connection space 8a3. The resilient contact piece 8d is formed in a curved shape having a substantially curved shape having a small arc shape projecting from the base end side toward the center side of the box portion 8a from the base end side. A second contact portion 8d1 is provided at a portion of the elastic contact piece 8d that protrudes most inside the connection space 8a3. The second contact portion 8d1 is disposed between the two first contact portions 8a6, and makes a conductive contact with the first contact portion 8a6 by sandwiching the plug contact portion 10a. In the elastic contact piece 8d, a first contact portion 8d2 is provided on the tip side from the second contact portion 8d1, and the plug contact portion 10a and the first contact portion 8a6 are in conductive contact. At the inner wall 8a5 of the bottom wall 8a2 of the box 8a. Further, a second contact portion 8d3 is provided on the base end side of the resilient contact piece 8d with respect to the second contact portion 8d1, and like the first contact portion 8a6, the plug contact portion 10a and the second contact portion 8d3 are provided. The first contact portion 8a6 comes into contact with the inner surface 8a5 of the bottom wall portion 8a2 in a state of being in conductive contact.

  The linear conductor connection part 9 has a caulking part 9a and a clamp part 9b.

  The caulking portion 9a has a bottom portion 9a1 provided along the direction in which the linear conductor 5 extends, and a fixing piece 9a2 for pressing the conductive portion 5a against the bottom portion 9a1. Further, the fixing pieces 9a2 project one by one from the plate edges on both sides along the front-rear direction Y of the bottom portion 9a1, and they face each other. The fixing piece 9a2 is bent and presses the conductive portion 5a of the linear conductor 5 against the bottom 9a1, whereby the linear conductor 5 is fixed to the socket terminal 6. A plurality of substantially rectangular concave portions 9a3 along the width direction X are provided in the bottom portion 9a1, and the oxide film of the conductive portion 5a can be broken by the corners of the concave portions 9a3.

  The clamp portions 9b are provided so as to project one by one from the plate edges on both sides along the front-rear direction Y of the bottom portion 9a1. The socket terminal 6 is fixed to the linear conductor 5 by bending the two clamp pieces 9b1 and pressing them against the insulating coating 5b of the linear conductor 5.

[Plug connector]
As described above, the plug connector 2 includes the plug housing 11 and the plurality of plug terminals 10.

[Plug housing]
The plug housing 11 is made of an insulating resin, and is provided in a substantially rectangular parallelepiped shape as shown in FIGS. It has a top wall portion 11a, a bottom wall portion 11b, a back wall portion 11c, and a side wall portion 11d, and is further formed by the top wall portion 11a, the bottom wall portion 11b, the back wall portion 11c, and the side wall portion 11d. A fitting chamber 11e, an accommodation space 11e1, and an opening edge 11f for inserting the socket connector 1 into the fitting chamber 11e.

  The top wall portion 11a is arranged above the plug housing 11. In the top wall 11a, the opening edge 11f in the front-back direction Y has a plurality of relief recesses 11a1 arranged along the width direction X. Particularly in the present embodiment, the top wall portion 11a has two escape concave portions 11a1. The relief recess 11a1 is arranged at the same position as the two legs 4a4 of the bridge portion 4a2 of the socket connector 1 in the width direction X. It is housed inside (see FIG. 21). Therefore, by providing the escape recess 11a1, the length in the front-rear direction Y of the fitting structure F in which the socket connector 1 and the plug connector 2 are fitted can be further reduced.

A protruding piece 11a2 is formed between the two recessed recesses 11a1 to project toward the opening edge 11f in the front-rear direction Y. In the fitted state, the protruding pieces 11a2 are arranged immediately below the horizontal portions 4a5 of the bridges 4a2 provided in the socket housing 3. On the base end side of the protruding piece 11a2, on the lower surface of the top wall portion 11a (the surface exposed to the housing space 11e1), a lock portion 11a3 for locking to the protruding portion 4a1 of the socket connector 1 is provided. In addition, twisting can be suppressed by fitting the concave / convex shape formed by the two escape recesses 11a1 and the protruding piece 11a2 with the leg 4a4 of the socket connector 1. Further, assuming that the lock portion 11a3 is provided on the plate edge of the ceiling wall portion 11a without providing such a protruding piece portion 11a2, the length in the front-rear direction Y of the lock portion 11a3 (the thickness in the front-rear direction Y of the lock portion 11a3). Becomes shorter. Therefore, the lock portion 11a3 is weak against the load in the front-rear direction Y. On the other hand, by providing the protruding piece 11a2 and providing the lock 11a3 on the base end side as in the present embodiment, the length of the protruding piece 11a2 in the front-rear direction Y is equal to the length of the lock 11a3. The length of Y can be made longer. Therefore, the lock portion 11a3 that is unlikely to be damaged even when receiving a load in the front-rear direction Y can be provided.
The protruding piece 11a2 extends to a position where the tip 11a4 is flush with the rear end of the top wall 11a where the escape recess 11a1 and the protruding piece 11a2 are not provided. As a result, in the fitted state with the socket connector 1, the tip end portion 11a4 of the protruding piece portion 11a2 is disposed closer to the opening edge 11f in the front-rear direction Y than the horizontal portion 4a5 of the bridge portion 4a2. Therefore, the worker can confirm that the fitting operation has been reliably completed by visually checking that the distal end portion 11a4 of the protruding piece portion 11a2 is disposed closer to the opening edge 11f than the horizontal frame portion 4a5.

  The side wall 11d is connected to both ends in the width direction X of the top wall 11a, and a guide groove 11d1 along the front-rear direction Y is formed on a surface of the side wall 11d on the side of the housing space 11e1. The guide groove 11d1 has a shape along the outer diameter of the ridge 4b1 of the socket connector 1. When the socket connector 1 is inserted into the fitting chamber 11e, the ridge 4b1 is inserted inside the guide groove 11d1. Be guided.

  The bottom wall portion 11b is disposed below the plug housing 11, and has a withdrawal recess 11b1 formed on the rear side (the side of the opening edge 11f in the front-rear direction Y) as shown in FIG. When the socket connector 1 and the plug connector 2 are fitted to each other, the front end side of the socket housing 3 is exposed to the outside via the extraction recess 11b1. Therefore, when removing the socket connector 1 from the plug connector 2, it is easy for an operator to touch the bottom-side protrusion 4f1 of the socket housing 3, and the worker can easily pull the bottom-side protrusion 4f1 with a finger. Removal work can be performed.

  The back wall portion 11c is connected to the top wall portion 11a, the side wall portion 11d, and the bottom wall portion 11b, and is disposed at the front end (the back side in the insertion direction of the socket connector 1). The back wall portion 11c holds a plurality of plug terminals 10.

(Plug terminal)
The plug terminal 10 is a pin-shaped terminal, and has a board connection part 10b, a housing fixing part 10c, and a plug contact part 10a. The housing fixing portion 10c penetrates the back wall portion 11c along the front-rear direction Y, and a plug contact portion 10a described later is arranged inside the fitting chamber 11e, and the board connecting portion 10b is arranged outside. . In addition, since the socket connector 1 has two rows of upper and lower socket terminals 6, the plug connector 2 includes two types of plug terminals 10 corresponding to the heights of the plug contact portions 10a.

[How to fix the linear conductor to the socket terminal]
The linear conductor 5 is fixed to the linear conductor connection portion 9 of the socket terminal 6. Specifically, at the same time as aligning the distal end of the insulating coating 5b with the clamp piece 9b1, the conductive portion 5a exposed from the insulating coating 5b is attached to the crimping portion 9a of the socket terminal 6 at the distal end of the linear conductor 5. Position. Thereafter, the clamp piece 9b1 is bent and held toward the insulating coating 5b, and the fixed piece 9a2 is further bent and pressed toward the conductive portion 5a. Thus, the attachment of the linear conductor 5 to the socket terminal 6 is completed (see FIG. 11).

[Description of mounting method of socket terminal to socket housing]
First, the retainer 7 is pushed down and moved to the insertable position (see FIG. 14A). Thereafter, the contact connecting portion 8 of the socket terminal 6 is inserted into the insertion opening 4c1 of the socket housing 3 (see FIGS. 12A and 12B). When the retainer 7 is in the insertable position, the locking portion 7b of the retainer 7 is arranged outside the terminal accommodating portion 4c, so that the socket terminal 6 can be smoothly inserted into the terminal accommodating portion 4c. Since the locking portion 7b of the retainer 7 has the inclined portion 7b1, even if the positioning protrusion 8b or the box portion 8a of the socket terminal 6 comes into contact with the locking portion 7b, a situation occurs in which the insertion is stopped by being caught. It has become difficult.

  As described above, the socket housing 3 has the insertion groove 4c2 along the front-rear direction Y on the lower end side of the terminal accommodating portion 4c. The insertion groove 4c2 is formed from the insertion port 4c1 to the far side of the terminal accommodating portion 4c. Further, since the contact connecting portion 8 is provided with the positioning protrusion 8b protruding along the height direction Z, the side on which the positioning protrusion 8b is provided faces downward and is aligned with the insertion groove 4c2. Then, the contact connection portion 8 can be inserted into the insertion port 4c1. By providing such an insertion groove 4c2, the socket terminal 6 can be inserted into the terminal accommodating portion 4c in a regular direction. The distal end of the contact connecting portion 8 of the lower socket terminal 6 passes through the terminal insertion hole 7a of the retainer 7 and is inserted into the terminal housing 4c. The distal end of the contact connection portion 8 of the upper socket terminal 6 passes through a further upper side of the locking portion 7b provided above the terminal insertion hole 7a of the retainer 7 and is inserted into the terminal receiving portion 4c.

  As described above, the elastic piece 4d1 of the lance 4d is elastically deformable along the width direction X, and is provided to be inclined in the width direction X with respect to the front-rear direction Y. Since the locking projection 4d2 enters the inside of the insertion groove 4c2 from the side, the elastic piece 4d1 of the lance 4d is directed outward from the insertion groove 4c2 by pressing the socket terminal 6 into contact with the locking projection 4d2. It is elastically deformed along the width direction X. As described above, the lance 4d extends from the step portion 4c3 that extends the groove width of the insertion groove 4c2, and such a lance 4d can be elastically deformed inside the displacement space S (FIGS. 15 and 16). reference). Thus, the work of inserting the socket terminal 6 into the terminal accommodating portion 4c can be performed smoothly. In addition, since the insertion groove 4c2 and the displacement space S can be communicated with each other, the socket housing 3 can be further reduced in size as compared with a case where they are separately provided. Since the elastic piece 4d1 is biased toward the inside of the insertion groove 4c2, when the positioning projection 8b enters the terminal receiving section 4c and passes through the locking projection 4d2, the locking projection 4d2 is formed. Returns to the position inside the insertion groove 4c2. If the socket terminal 6 is pulled in the removal direction in this state, the rear end of the positioning projection 8b comes into contact with the locking projection 4d2 to prevent the positioning projection 8d from coming off. As described above, the lance 4d is elastically deformed not in the height direction Z but in the width direction X, so that the size can be reduced in the height direction Z.

  Thereafter, the retainer 7 is pushed up and moved to the locking position (see FIG. 14B). Thereby, the locking portion 7b of the retainer 7 enters the inside of the terminal accommodating portion 4c. When the socket terminal 6 is pulled in the removal direction in this state, the locking portion 7b comes into contact with the locked portion 8a4 provided at the rear end of the box portion 8a and is prevented from falling off. Therefore, in the socket terminal 6 of the present embodiment, since the lance 4d and the retainer 7 are prevented from being doubled, the socket terminal 6 can be more securely fixed to the socket housing 3. In this state, the lower end of the retainer 7 is flush with the lower surface of the socket housing 3. Therefore, it can be visually confirmed that the retainer 7 has been firmly moved to the locking position. If the socket terminal 6 is not inserted firmly into the terminal receiving portion 4c, the locking portion 7b of the retainer 7 is hooked on the bottom wall portion 8a2 of the box portion 8a and is pushed up to the locking position. Can not do. In this case, since the lower end of the retainer 7 protrudes downward from the socket housing 3, such an unlocked state can be visually confirmed.

[Explanation of fitting work between socket connector and plug connector]
The plug connector 2 is mounted on the board P. At this time, as shown in FIG. 23, the recess 11b1 for removal of the plug connector 2 is arranged so as to be flush with the end face P1 of the board P. Thereafter, as shown in FIGS. 19 and 20, the socket connector 1 is inserted into the opening edge 11f of the plug connector 2, and the contact connection portion 8 of the socket terminal 6 and the plug contact portion 10a are brought into conductive contact. At this time, the plug contact portion 10a is inserted into the connection space 8a3 provided inside the box portion 8a of the socket terminal 6. Thereby, the plug contact portion 10a is surrounded by the box portion 8a, so that it is difficult for the plug contact portion 10a to fall out of the connection space 8a3, so that the plug contact portion 10a makes reliable conductive contact with the first contact portion 8a6 and the second contact portion 8d1. be able to.

  Thereafter, the plug contact portion 10a is guided by the elastic contact piece 8d having a curved shape to the rear side of the connection space 8a3, and the plug contact portion 10a presses the first contact portion 8a6, and the second contact portion 8d1 To expand the gap and penetrate the gap. At this time, the elastic contact piece 8d having the second contact portion 8d1 is pressed downward, but the first contact portion 8d2 provided on the distal side and the second contact portion provided on the proximal side. The contact of the portion 8d3 with the inner surface 8a5 of the bottom wall portion 8a2 restricts the displacement of the second contact portion 8d1 (see FIG. 23). Therefore, the contact pressure of the second contact portion 8d1 with respect to the plug contact portion 10a can be further increased as compared with the case where the second contact portion 8d1 is displaced without limit. Thereby, the first contact portion 8a6 and the second contact portion 8d1 can reliably make conductive contact with the plug contact portion 10a.

  As described above, the elastic contact piece 8d is connected to the positioning projection 8b via the bent portion 8c. Therefore, in conjunction with the elastic deformation of the elastic contact piece 8d, the bent portion 8c and the positioning protrusion 8b can also be elastically deformed. Therefore, when the first contact portion 8a6 is pressed by the plug contact portion 10a, not only the elastic contact piece 8d but also the bent portion 8c and the positioning protrusion 8b are bent, so that stress can be dispersed. Therefore, occurrence of breakage or damage due to concentration of stress on the elastic contact piece 8d can be suppressed.

  Thereafter, when the socket connector 1 is further inserted into the fitting chamber 11 e of the plug connector 2, the projection 4 a 1 of the socket connector 1 is locked to the lock portion 11 a 3 of the plug connector 2. At this time, since a click feeling is felt at hand, it can be confirmed that the socket connector 1 has been securely inserted into the fitting chamber 11e of the plug connector 2. Thus, the operation of fitting the socket connector 1 and the plug connector 2 is completed.

[Description of removal method]
When removing the socket connector 1 from the plug connector 2, first, the lock release piece 4a3 of the socket housing 3 is pressed downward. By doing so, the projection 4a1 of the socket housing 3 is lowered, separated from the lock portion 11a3 of the plug connector 2, and the lock is released. In the present embodiment, since the extraction concave portion 11b1 of the plug connector 2 is arranged so as to be flush with the end surface P1 of the substrate P, the worker can expose the socket connector 1 exposed from the extraction concave portion 11b1 or the bottom-side protruding portion. The fingertip can be easily hooked on 4f1. Therefore, the socket connector 1 can be easily pulled out from the plug connector 2 by sandwiching the socket connector 1 from above and below by coming into contact with the unlocking piece 4a3 and the bottom side projection 4f1. Note that even if the removal concave portion 11b1 is arranged on the substrate P that does not extend along the end surface P1 of the substrate P, the removal can be performed by contacting the socket housing 3 exposed from the plug connector 2.

  The plug connector 2 of the present embodiment includes the escape recess 11a1 and the protruding piece 11a2 as described above. Therefore, the leg portion 4a4 of the socket connector 1 can be made to enter the recess 11a1, so that the fitting structure F between the plug connector 2 and the socket connector 1 can be reduced in the front-rear direction Y. Furthermore, by providing the protruding piece 11a2 between the two escape recesses 11a1, it is possible to form an uneven shape on the opening edge 11f. By fitting the concave and convex shapes and the leg portions 4a4 of the socket connector 1, the twisting of the fitting structure F can be suppressed.

Modification:
In the above-described embodiment, an example has been described in which the elastic contact piece 8d is formed in a curved shape having a substantially bent shape having a small curved shape. On the other hand, the elastic contact piece 8d having a large curved shape may be used. By doing so, the second contact portion 8d1 can be more strongly contacted with the plug contact portion 10a, so that the contact pressure can be further increased.

  In the above-described embodiment, an example has been described in which the positioning projection 8b projects downward from the box 8a. On the other hand, a positioning protrusion that protrudes in the width direction X may be used. By doing so, the height of the socket housing 3 can be further reduced.

DESCRIPTION OF SYMBOLS 1 Socket connector 2 Plug connector 3 Socket housing 4 Socket housing main body 4a Top surface part 4a1 Projection part 4a2 Bridge part 4a3 Unlocking piece 4a4 Leg part 4a5 Horizontal part 4b Side wall part 4b1 Projection part 4c Terminal accommodating part 4c1 Insertion slot 4c2 4c3 Step 4d Lance 4d1 Elastic piece 4d2 Locking projection 4e Retainer insertion opening 4f Bottom part 4f1 Bottom side protruding part 5 Linear conductor 5a Conductive part 5b Insulating coating 6 Socket terminal 7 Retainer 7a Terminal insertion hole 7b Lock part 7b1 Slant part Reference numeral 8 Contact connecting portion 8a Box portion 8a1 Top wall portion 8a2 Bottom wall portion 8a3 Connection space 8a4 Locked portion 8a5 Inner surface 8a6 First contact portion 8b Positioning protrusion 8c Bending portion 8d Elastic contact piece 8d1 Second contact portion 8d2 Second 1 contact portion 8d3 second contact portion 9 linear Body connection part 9a Caulking part 9a1 Bottom part 9a2 Fixing piece 9a3 Concave part 9b Clamp part 9b1 Clamp piece 10 Plug terminal 10a Plug contact part 10b Board connection part 10c Housing fixing part 11 Plug housing 11a Top wall part 11a1 Escape concave part 11a2 Locking part 11a Part 11a4 Tip of protruding piece part 11b Bottom wall part 11b1 Depression recess 11c Back wall part 11d Side wall part 11d1 Guide groove 11e Fitting chamber 11e1 Housing space 11f Opening edge F Fitting structure P board P1 End face of board S Displacement space

Claims (2)

A housing body,
A connector that is in conductive contact with an object to be connected including a pair of legs protruding from the housing body and a bridge having a horizontal portion connecting the pair of legs,
A housing having an opening edge for inserting the connection object,
The housing is
A surface facing the horizontal portion has a ceiling wall portion formed flat without irregularities,
The top wall portion,
An insertion direction in which the object to be connected is inserted from the opening edge so that the pair of legs respectively enter into the housing in a state where the object to be connected is inserted into and fitted into the housing from the opening edge to the opening edge. A pair of escape recesses in which the top wall portion is not formed,
Forming a flat surface without a series of irregularities with the facing surface along the insertion direction toward an area surrounded by the pair of legs and the transverse portion provided between the pair of adjacent recesses. And a protruding piece projecting therefrom.
On the base end side of the protruding piece portion, which is the back side in the insertion direction of the connection object, and on the inner surface of the top wall portion opposite to the facing surface, a projection of the connection object is provided. There is a lock part that locks the part,
The connector according to claim 1, wherein the length of the lock portion in the insertion direction is longer than the length of the protruding piece.

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