JP5781991B2 - connector - Google Patents

Description

  The present invention relates to a connector including a plug connector and a receptacle connector that are detachable from each other.

As a prior art of a connector including a plug connector and a receptacle connector that can be attached to and detached from each other, for example, there is one disclosed in Patent Document 1.
The plug connector of Patent Document 1 includes a plug insulator having a recess and a plug contact group including two types of contacts attached to the recess. Each of the two types of plug contacts has a plug-side contact portion extending linearly in the connecting direction (fitting direction) between the plug connector and the receptacle connector.

The receptacle connector of Patent Document 1 includes a receptacle insulator having a receiving recess for receiving a plug insulator and a plug contact, and a receptacle contact group including two types of contacts attached to the receiving recess. Each of the two types of receptacle contacts includes one contact portion (convex portion) that comes into contact with the plug-side contact portion of the corresponding plug contact when the plug connector and the receptacle connector are connected.

The plug contact group of the plug connector is connected to a circuit board, and the receptacle contact group of the receptacle connector is connected to another circuit board.
Therefore, by connecting the plug connector and the receptacle connector, when each contact portion (convex portion) of the receptacle contact group comes into contact with each plug side contact portion of the plug contact group, the two circuit boards are electrically connected to each other. To do.

The connector of Patent Document 1 can be applied to various products. For example, it can be used for connection of a PLC (programmable controller) used in an industrial automatic machine or the like, an automobile car navigation system, and the like.
However, since various kinds of fine dust such as dust are present inside the factory or the automobile, there is a possibility that the fine dust may come into contact with the plug side contact portion of the plug contact group. If the plug connector and the receptacle connector are connected in a state where fine dust is attached to the plug-side contact portion, the fine dust is sandwiched between the plug-side contact portion and each contact portion (convex portion) of the receptacle contact group. There is a possibility of contact failure between the plug side contact part and the contact part.

  In addition, since the plug contact and receptacle contact are in contact with each other only at one point (plug side contact part and contact part), the plug contact occurs whenever an industrial automatic machine or the like vibrates during operation or the automobile vibrates during driving. The contact state of the receptacle contact may be temporarily (momentarily) released.

As a countermeasure against such a problem, for example, a first contact portion (convex portion) and a second contact portion (convex portion) may be formed on the receptacle contact as in the comparative example shown in FIG. In this way, when the plug connector and the receptacle connector are connected, the first contact portion comes into sliding contact with the plug-side contact portion first, and then the second contact portion comes into contact with the plug-side contact portion.
When the first contact portion is in sliding contact with the plug-side contact portion, the fine dust adhering to the plug-side contact portion is cleaned (swept out), and the first contact portion is in contact with the clean surface (plug-side contact portion). Since the two contact portions are in contact, the risk of contact failure between the plug connector and the receptacle connector is reduced.
Furthermore, since the plug contact and the receptacle contact are in contact at two points (the plug side contact portion and the first contact portion, and the plug side contact portion and the second contact portion), the contact state of one contact point is temporarily assumed by vibration. Since the contact state of the other contact point may be maintained even if is temporarily released (instantaneously), the contact reliability is improved.

JP 2010-33714 A

  However, if the spring length of the receptacle contact is long, or if the manufacturing size of the plug contact deviates from the design value or the insertion posture of the plug contact (plug connector) with respect to the receptacle connector deviates from the normal posture, the contact with the plug contact Sometimes, the position of the first contact portion slightly changes from the predetermined position (design position), so that the position on the tip side (second contact portion side) is more likely to change from the predetermined position (design position) than the first contact portion. That is, since the second contact portion is separated from the plug or the spring force is likely to decrease, the contact state between the plug-side contact portion and the second contact portion may become unstable.

  The object of the present invention is a structure in which the receptacle contact is in contact at two points with respect to the linearly extending plug-side contact portion of the plug connector, but it is possible to reliably contact these two contact portions in a stable state. Is to provide a simple connector.

The connector of the present invention includes a plug connector, a plug connector having a plug-side contact portion extending linearly and supported by the plug insulator, and a receptacle insulator connectable to the plug insulator, And a receptacle connector having a receptacle contact attached to the receptacle insulator and capable of coming into and out of contact with the plug-side contact portion of the plug contact, wherein the receptacle contact is fixed to the receptacle insulator. And a connecting portion between the first elastic deformation portion extending from the end portion of the fixing portion and the fixing portion of the first elastic deformation portion, and the first elastic deformation portion in a free state from the receptacle insulator Bends to be spaced apart Extending from the distal end portion of the first elastically deformable portion towards the fixed portion side, and comprising a second elastically deformable portion facing while forming the first elastic deformation portion and the gap, the second elastic deformation A first contact projection that slides against the plug-side contact portion when the plug insulator and the receptacle insulator are connected, and elastically deforms the second elastic deformation portion toward the first elastic deformation portion; When the plug-side contact portion and the first contact protrusion are not in contact with each other, the plug-side contact portion is not in contact with the first contact protrusion, and either of the receptacle insulator and the first elastic deformation portion When the plug-side contact portion and the first contact protrusion come into contact with each other, the contacted portion is separated from the contacted portion located on the first elastically deforming portion side with respect to the second elastically deforming portion. Deformation control to abut And when the plug insulator and the receptacle insulator are connected to each other, the plug contact portion contacts the first contact protrusion when the plug insulator and the receptacle insulator are connected to each other. And a second contact protrusion that contacts the part located on the tip side from the part being provided.

  A wide mounting groove extending in a direction parallel to the first elastically deforming portion and having the contacted portion on the bottom surface is recessed on the surface of the receptacle insulator, and the wide mounting groove is formed on the bottom surface of the wide mounting groove. A narrow mounting groove that is parallel to and narrower than the wide mounting groove, the first elastic deformation portion is positioned in the narrow mounting groove, and the second elastic deformation portion is positioned in the wide mounting groove. The deformation restricting portion wider than the narrow mounting groove may be formed in the second elastic deformation portion.

The second elastic deformation portion is located between the first contact protrusion and the second contact protrusion, and has a gradually changing width portion whose outer shape forms a curved shape, and is provided at an intermediate portion of the gradually changing width portion. The deformation restricting portion may be formed.
Further, the gradually changing width portion may have a curved shape convex toward the first elastic deformation portion.

  In a state before the plug insulator and the receptacle insulator are connected, the first elastic deformation portion may be separated from the receptacle insulator.

  According to the present invention, when the plug-side contact portion of the plug contact comes into contact with the first contact protrusion of the receptacle contact by fitting the plug connector and the receptacle connector to the intermediate position, the second elastic deformation portion is 1 The elastic deformation part is elastically deformed to the elastic deformation part side, and the deformation restricting part that has been separated from the contacted part until then comes into contact with the contacted part. Then, since the spring length of the spring part including the second contact protrusion is shorter than that before the deformation restricting part comes into contact with the contacted part (the spring constant changes), the spring force of the part (deformation restricting part) Compared to before contact with the contacted portion). When the plug-side contact portion of the plug contact is slid with respect to the first contact protrusion of the receptacle contact by completely fitting the receptacle connector and the plug connector from this state, the plug contact side by the first contact protrusion of the receptacle contact. The minute dust adhering to the surface of the contact portion is cleaned (swept out). And the 2nd contact protrusion of a receptacle contact contacts reliably with the strong press-contact force with respect to the cleaned site | part in a plug side contact part. Further, when the deformation restricting portion comes into contact with the abutted portion by connecting the receptacle connector and the plug connector to the intermediate position, the portion on the tip side (second contact projecting portion side) from the deformation restricting portion of each receptacle contact is a predetermined portion. Since it is located at the deformed position (design position), even if the manufacturing dimension of each plug contact deviates from the design value or the insertion posture of each plug contact (plug connector) with respect to the receptacle connector deviates from the normal posture, each second The contact protrusion can be reliably brought into contact with each plug-side contact portion. Therefore, even when the spring length of the receptacle contact is long, the first contact protrusion and the second contact protrusion can be brought into stable contact with the plug-side contact portion of the plug contact.

Further, since the second contact protrusion comes into contact with the cleaned portion of the plug-side contact portion, there is little possibility that the second contact protrusion and the plug-side contact portion cause poor contact.
Furthermore, since the plug contact and the receptacle contact are in contact at two points, even if the contact state of one contact point is temporarily (momentarily) released by vibration generated in the connector, the contact state of the other contact point is Since it may be maintained, contact reliability improves compared with the case of one point contact.

It is the perspective view seen from the downward direction of the separation state of the plug connector and receptacle connector of one Embodiment of this invention. It is the disassembled perspective view seen from the downward direction of the receptacle connector. It is a perspective view of the 1st receptacle contact. It is a rear view of the 1st receptacle contact. It is a front view of the 1st receptacle contact. It is a top view of a receptacle connector. It is sectional drawing which follows the VII-VII arrow line of FIG. It is sectional drawing which follows the VIII-VIII arrow line of FIG. It is an enlarged view of the principal part of FIG. It is the disassembled perspective view seen from the upper part of the plug connector. It is a top view of a plug connector. It is sectional drawing which follows the XII-XII arrow line of FIG. It is sectional drawing cut | disconnected in the same position as FIG. 7, FIG. 12 when a plug connector and a receptacle connector are fitted to an intermediate position. It is the perspective view seen from the lower part of the plug connector and receptacle connector of a connection completion state. It is sectional drawing similar to FIG. 13 of a connection completion state. It is an enlarged view of the principal part of FIG. It is sectional drawing similar to FIG. 15 of a comparative example.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
The connector 10 of the present embodiment can be applied to, for example, a PLC (programmable controller) used in industrial automatic machines or the like, connection of car navigation systems of automobiles, and the like, and a receptacle connector 20 that can be coupled and separated from each other. A plug connector 50 is provided.

First, the overall structure of the receptacle connector 20 will be described.
The receptacle connector 20 includes a receptacle insulator 21 in which an insulating and heat-resistant synthetic resin material is injection-molded, a first receptacle contact 35 fixed to the receptacle insulator 21, and a second receptacle contact 45. .
The receptacle insulator 21 is integrally provided with an annular wall portion 22 whose internal space forms a receiving recess 22 a and a bottom plate portion 23 that closes the bottom surface of the annular wall portion 22. The receptacle insulator 21 is formed with eight first contact mounting grooves 25 and eight second contact mounting grooves 33 that penetrate the bottom plate portion 23 and extend upward along the inner surface of the annular wall portion 22.
Eight first contact mounting grooves 25 are formed side by side in the left-right direction, and each first contact mounting groove 25 includes a tail mounting groove 26 formed on the bottom surface of the bottom plate portion 23 and a rear end portion of the tail mounting groove 26. And a main body mounting groove 28 having an upper end opened at the upper surface of the annular wall portion 22. The main body mounting groove 28 has a wide mounting groove 29 extending in the front-rear direction that is recessed in the front inner surface (front surface) of the annular wall portion 22, and a wide mounting groove parallel to the wide mounting groove 29 that is recessed in the bottom surface of the wide mounting groove 29. And a narrow mounting groove 31 having a narrower width (right and left dimensions) than the groove 29. The bottom surface of each wide mounting groove 29 is a contacted portion 30 that is located on both the front and rear sides of the narrow mounting groove 31 and is a plane that is orthogonal to the front-rear direction. The eight second contact mounting grooves 33 are symmetric with the first contact mounting grooves 25 in the front-rear direction. Like the first contact mounting grooves 25, the tail mounting grooves 26 and the body mounting grooves 28 (wide mounting grooves 29). And a narrow mounting groove 31).

Eight first receptacle contacts 35 and second receptacle contacts 45 are attached to each first contact attachment groove 25 and each second contact attachment groove 33.
The first receptacle contact 35 and the second receptacle contact 45 are both shown in a shape using a progressive die (stamping) of a copper alloy (for example, phosphor bronze, beryllium copper, titanium copper) or a Corson copper alloy having spring elasticity. After the base is formed by nickel plating on the surface, gold plating or tin copper plating is applied. The first receptacle contact 35 and the second receptacle contact 45 are symmetrical with each other. Further, the first receptacle contact 35 is a symmetrical contact, and the second receptacle contact 45 is also a symmetrical contact.
Each of the first receptacle contacts 35 includes a tail piece 36 extending in the front-rear direction, a fixing portion 37 linearly extending upward from an end portion of the tail piece 36, and an obliquely upward rearward extension from the end portion of the fixing portion 37. An outer elastic deformation portion 38 (first elastic deformation portion) that linearly extends upward later, and an inner elastic deformation portion 39 that extends downward while curving downward from the upper end of the outer elastic deformation portion 38 ( 2nd elastic deformation part). The connecting portion of the outer elastic deformation portion 38 to the fixing portion 37 is constituted by a bent portion 38 a extending obliquely upward from the end portion of the fixing portion 37. As shown in the drawing, the inner elastic deformation portion 39 faces the front and rear direction while being separated from the outer elastic deformation portion 38. As shown in the figure, the fixing portion 37 is wider than the outer elastic deformation portion 38, and the inner elastic deformation portion 39 is also wider than the outer elastic deformation portion 38. Further, a total of four locking projections 37 a are provided on the left and right side surfaces of the fixing portion 37. In the vicinity of the upper end of the inner elastic deformation portion 39, a first contact protrusion 40 that curves backward is formed, and at the lower end of the inner elastic deformation portion 39, a second curve that curves backward is formed. A contact protrusion 43 is formed. The portion located between the first contact protrusion 40 and the second contact protrusion 43 of the inner elastic deformation portion 39 has the widest intermediate portion when viewed in the front-rear direction, and the first contact protrusion from the intermediate portion. The width gradually becomes narrower toward the 40 side and the second contact protrusion 43 side, and a gradually changing width portion 41 having a curved shape is formed on both side edges (see FIGS. 3 and 4). When the gradual change width portion 41 is viewed from the left-right direction, the gradual change width portion 41 as a whole has a convex curved shape on the front side (see FIGS. 3 and 7). The gradually changing width portion 41 is wider than the narrow attachment groove 31. A deformation restricting portion 42 is formed at an intermediate portion (widest portion) of the gradually changing width portion 41.
As with the first receptacle contact 35, each second receptacle contact 45 has a tail piece 36, a fixed portion 37, an outer elastic deformation portion 38, and an inner elastic deformation portion 39 (first contact protrusion 40, gradually varying width portion). 41, a deformation restricting portion 42, and a second contact protrusion 43).

Each first receptacle contact 35 and each second receptacle contact 45 are inserted from below into the first contact mounting groove 25 and the second contact mounting groove 33, respectively.
When the first receptacle contact 35 is inserted into the first contact mounting groove 25 from below, the tail piece 36 is positioned in the tail mounting groove 26 as shown in FIG. An inner elastic deformation portion 39 (having a gradually changing width portion 41 wider than the narrow attachment groove 31) is located in the narrow attachment groove 31 and is located in the wide attachment groove 29. Further, the fixing portion 37 comes into contact with the bottom surface of the narrow mounting groove 31 and each locking projection 37 a bites into both side surfaces of the narrow mounting groove 31, so that the fixing portion 37 is fixed to the narrow mounting groove 31. The second receptacle contact 45 is also attached to the second contact attachment groove 33 in the same manner as the first receptacle contact 35 with respect to the second contact attachment groove 33. Although the first receptacle contact 35 and the second receptacle contact 45 have a gradually changing width portion 41 wider than the narrow attachment groove 31, the fixed portion 37 and the outer elastic deformation portion 38 are positioned in the narrow attachment groove 31, By positioning the elastically deformable portion 39 in the wide mounting groove 29, the first receptacle contact 35 and each second receptacle contact 45 can be inserted into the first contact mounting groove 25 and the second contact mounting groove 33 from below. Therefore, the productivity of the receptacle connector 20 is not impaired (by the gradually changing width portion 41 wider than the narrow mounting groove 31).
When the first receptacle contact 35 and the second receptacle contact 45 are attached to the receptacle insulator 21 in this way, the outer elastic deformation portion 38 and the inner elastic deformation portion 39 become free, and the outer elastic deformation portion 38 is provided with a bent portion 38a. As a result, the outer elastic deformation portion 38 is separated from the bottom surface of the narrow attachment groove 31, and the deformation restriction portion 42 is separated from the contacted portion 30. Furthermore, as shown in FIG. 7, each 1st contact protrusion 40 and each 2nd contact protrusion 43 are located in the receiving recessed part 22a (inside the wide attachment groove | channel 29).

  As shown in FIG. 1, the tail pieces 36 of the first receptacle contact 35 and the second receptacle contact 45 are soldered to the circuit pattern on the circuit board CB1 orthogonal to the vertical direction.

Next, the overall structure of the plug connector 50 will be described.
The plug connector 50 includes a plug insulator 51 formed by injection molding an insulating and heat-resistant synthetic resin material, a first plug contact 57 fixed to the plug insulator 51, and a second plug contact 62. .
The plug insulator 51 includes a fitting convex portion 52 that can be fitted to the receiving concave portion 22a of the receptacle insulator 21, an outer peripheral annular wall portion 53 that surrounds the fitting convex portion 52, a fitting convex portion 52, and an outer peripheral annular shape. A ceiling portion 54 that closes the ceiling portion of the wall portion 53, and the space between the outer peripheral annular wall portion 53 and the fitting convex portion 52 can be fitted into the annular wall portion 22 of the receptacle insulator 21. A recess 55 is formed.

Eight first plug contacts 57 and second plug contacts 62 are attached to the plug insulator 51, respectively.
Both the first plug contact 57 and the second plug contact 62 are shown in a shape using a progressive die (stamping) of a thin plate of a copper alloy (for example, phosphor bronze, beryllium copper, titanium copper) or a Corson copper alloy having spring elasticity. After the base is formed by nickel plating on the surface, gold plating or tin copper plating is applied. The first plug contact 57 and the second plug contact 62 are symmetrical with each other. Further, the first plug contact 57 is a symmetrical contact, and the second plug contact 62 is also a symmetrical contact.
Each first plug contact 57 includes a tail piece 58 extending in the front-rear direction, a fixing portion 59 (plug-side contact portion) extending linearly downward from an end portion of the tail piece 58, and a lower end portion of the fixing portion 59. And an inclined end portion 60 to be connected. Each second plug contact 62 includes a tail piece 58, a fixing portion 59, and an inclined end portion 60, similarly to the first plug contact 57.
The first plug contacts 57 are fixed to the plug insulator 51 in a state where the first plug contacts 57 are arranged in the left-right direction. The tail piece 58 of each first plug contact 57 is exposed at the ceiling portion 54, and the fixing portion 59 and the inclined end portion 60 of each first plug contact 57 are fixed to the front surface of the fitting convex portion 52. On the other hand, the second plug contacts 62 are also fixed to the plug insulator 51 in a state where they are arranged in the left-right direction. The tail piece 58 of each second plug contact 62 is exposed at the ceiling portion 54, and the fixing portion 59 and the inclined end portion 60 of each second plug contact 62 are fixed to the rear surface of the fitting convex portion 52.
As shown in FIG. 1, the tail pieces 58 of the first plug contact 57 and the second plug contact 62 are soldered to a circuit pattern on the circuit board CB2 orthogonal to the vertical direction.

In the receptacle connector 20 and the plug connector 50 having the above-described structure, as shown in FIGS. 13 to 15, the fitting convex portion 52 of the plug connector 50 is fitted into the internal space (receiving recess 22 a) of the annular wall portion 22 of the receptacle connector 20. And the annular wall portion 22 of the receptacle connector 20 is coupled to each other by fitting into the fitting recess 55 of the plug connector 50.
FIG. 13 shows a state when the receptacle connector 20 and the plug connector 50 are fitted to the intermediate position. At this time, the first plug contact 57 and the fixing portion 59 of the second plug contact 62 are in contact with the first contact protrusions 40 of the first receptacle contact 35 and the second receptacle contact 45. Then, the inner elastic deformation portion 39 and the outer elastic deformation portion 38 of the first receptacle contact 35 are elastically deformed to the front side, and the inner elastic deformation portion 39 and the outer elastic deformation portion 38 of the second receptacle contact 45 are elastically deformed to the rear side. The deformation restricting portions 42 that have been separated from the abutted portion 30 until then come into contact with the abutted portion 30 (the outer elastic deformable portion 38 and the bottom surface of the narrow attachment groove 31 maintain a separated state). Before the deformation restricting portion 42 contacts the contacted portion 30, the outer elastic deformation portion 38 and the inner elastic deformation portion 39 function as one spring, and the lower end (base end) and the inner side of the outer elastic deformation portion 38. The total length between the tips of the elastic deformation portions 39 (second contact protrusions 43) is a substantial spring length. However, after the deformation restricting portion 42 comes into contact with the contacted portion 30, the portion of the inner elastic deforming portion 39 located on the tip side (second contact projecting portion 43) side from the first contact projecting portion 40 is another spring constant. It functions as a spring having a spring constant different from that before the deformation restricting portion 42 contacts the contacted portion 30. That is, when the deformation restricting portion 42 comes into contact with the contacted portion 30, the spring length of the spring portion including the second contact protrusion 43 is larger than that before the deformation restricting portion 42 contacts the contacted portion 30. Therefore, the spring force of the portion becomes higher (compared to before the deformation restricting portion 42 contacts the contacted portion 30). In particular, in the present embodiment, the gradual change width portion 41 is deformed by making the deformation regulating portion 42 the widest of the first receptacle contact 35 and the second receptacle contact 45 and making the gradually change width portion 41 curved. In some cases, the stress is easily dispersed. Therefore, even when a large stress is applied to the gradually changing width portion 41, plastic deformation of the gradually changing width portion 41 can be suppressed, so that the spring length of the spring portion including the second contact protrusion 43 can be shortened.

When the receptacle connector 20 and the plug connector 50 are completely fitted from the state of FIG. 13, the fixing portions 59 of the first plug contact 57 and the second plug contact 62 are the first receptacle contact 35 and the first receptacle contact 45. A small amount of dust (for example, dust or the like) that slides downward relative to the contact protrusion 40 and adheres to the surface of the corresponding fixed portion 59 by the first contact protrusion 40 of the first receptacle contact 35 and the second receptacle contact 45. Oils and fats adhering to the surface are cleaned (swept out). And the 2nd contact protrusion 43 of the 1st receptacle contact 35 and the 2nd receptacle contact 45 contacts with the strong press-contact force with respect to the cleaned site | part in the fixing | fixed part 59. FIG.
Further, when the receptacle connector 20 and the plug connector 50 are connected to the state shown in FIG. 13, the deformation restricting portion 42 comes into contact with the contacted portion 30, so that the deformation restricting portion 42 is positioned (moves to the outer elastic deforming portion 38 side). In addition, the first receptacle contact 35 and the second receptacle contact 45 are located at a predetermined deformation position (design position) on the tip side (second contact projection 43 side) from the deformation regulating portion 42 of the first receptacle contact 35 and the first receptacle contact 45. It is assumed that the manufacturing dimensions of the plug contact 57 and the second plug contact 62 are deviated from the design values, and the insertion posture of the first plug contact 57 and the second plug contact 62 (plug connector 50) with respect to the receptacle connector 20 is deviated from a normal posture. The second contact protrusion 43 can be reliably brought into contact with each fixing portion 59. . Further, since the reaction force received by the second contact protrusion 43 from the fixing portion 59 reaches the first contact protrusion 40 as a force for increasing the contact force between the first contact protrusion 40 and the fixing portion 59, the first contact protrusion The portion 40 is not separated from the fixed portion 59.
Therefore, even if the total length between the lower end (base end) of the outer elastic deformation portion 38 and the distal end (second contact protrusion 43) of the inner elastic deformation portion 39 is long, the first contact protrusion 40 and the second contact are formed. The protrusion 43 can be brought into contact with the fixing portion 59 of the first plug contact 57 and the second plug contact 62 in a stable state.
Moreover, in the state where the receptacle connector 20 and the plug connector 50 are fitted to the intermediate position (the state shown in FIG. 13), the fixing portions 59 of the first plug contact 57 and the second plug contact 62 are the first receptacle contact 35 and the second receptacle contact 35. Since it contacts only with the 1st contact protrusion 40 of the receptacle contact 45, the receptacle connector 20 and the plug connector 50 can be fitted by small force to the said intermediate position.
As described above, each first receptacle contact 35 and second receptacle contact 45 contacts the fixing portion 59 at two points of the first contact protrusion 40 and the second contact protrusion 43, so that the first receptacle contact 35 and the first plug are connected. The possibility of contact failure between the contacts 57 and between the second receptacle contact 45 and the second plug contact 62 is reduced, and the circuit board CB1 and the circuit board CB2 are electrically connected to each other.

  Furthermore, the first receptacle contact 35 and the first plug contact 57, and the second receptacle contact 45 and the second plug contact 62 come into contact at two points (the first contact protrusion 40 and the second contact protrusion 43). Therefore, even if the contact state of one contact point (for example, the first contact protrusion 40) with respect to the fixed portion 59 is temporarily (momentarily) canceled due to vibration of the device on which the connector 10 is mounted, Since the contact state of the other contact point (for example, the second contact protrusion 43) may be maintained, high contact reliability can be obtained.

  If the receptacle connector 20 and the plug connector 50 in the completely fitted state are moved away from each other, the receptacle connector 20 and the plug connector 50 can be separated as shown in FIG. When the receptacle connector 20 and the plug connector 50 are separated, the outer elastic deformation portion 38 and the inner elastic deformation portion 39 of the first receptacle contact 35 and the second receptacle contact 45 are elastically returned to the free state, and the deformation regulating portion 42 is a contacted portion. Separate from 30 again.

The present invention described above is not limited to the above embodiment, and can be implemented with various modifications.
For example, the receptacle connector 20 and the plug connector 50 of the above embodiment are so-called straight types in which the circuit board CB1 and CB2 are orthogonal to the fitting direction and the separation direction (that is, the vertical direction) of the receptacle connector 20 and the plug connector 50. 20 and the plug connector 50, the tail pieces 36 and 58 are exposed on the side surfaces of the receptacle insulator 21 or the plug insulator 51, and the fitting direction of the receptacle connector 20 and the plug connector 50 with respect to the tail pieces 36 and 58 and A so-called right angle type in which circuit boards parallel to the separation direction are connected may be used.

Further, the main body mounting groove 28 is not constituted by the wide mounting groove 29 and the narrow mounting groove 31 having different widths, but a main body mounting groove (not shown) whose left-right width does not change (almost) even if the front-rear position changes. The fixing portion 37, the outer elastic deformation portion 38, and the inner elastic deformation portion 39 may be accommodated in the body mounting groove. In this case, the first plug contact 57 and the fixing portion 59 of the second plug contact 62 come into contact with the first contact protrusions 40 of the first receptacle contact 35 and the second receptacle contact 45, whereby the first receptacle contact 35. When the inner elastic deformation portion 39 of the second receptacle contact 45 is elastically deformed in the main body mounting groove, the deformation restricting portion 42 of the inner elastic deformation portion 39 is brought into contact with the outer elastic deformation portion 38 (contacted portion). Thus, the spring length of the spring portion including the second contact protrusion 43 is shortened (compared to before the deformation restricting portion 42 contacts the outer elastic deformation portion 38).
Further, the first plug contact 57 and the fixing portion 59 of the second plug contact 62 come into contact with the first contact protrusions 40 of the first receptacle contact 35 and the second receptacle contact 45, whereby the first receptacle contact 35 and the second receptacle contact 35. When the inner elastic deformation portion 39 and the outer elastic deformation portion 38 of the receptacle contact 45 are elastically deformed, each outer elastic deformation portion 38 may be in contact with the bottom surface of the narrow attachment groove 31. In this way, even when the entire length of the outer elastic deformation portion 38 is long, the first contact protrusion 40 can be brought into contact with the fixed portion 59 with a strong contact pressure.

Further, the surface of the fixing portion 59 (the surface facing the first receptacle contact 35 and the second receptacle contact 45) protrudes toward the first receptacle contact 35 and the second receptacle contact 45 and extends in the longitudinal direction of the fixing portion 59. A contact protrusion may be formed, and the contact protrusion may be brought into contact with the first contact protrusion 40 and the second contact protrusion 43. The contact protrusions may be a pair of left and right contact protrusions extending in the longitudinal direction of the fixing portion 59 (a gap is formed between the left and right contact protrusions).
Furthermore, the first contact protrusion 40 and the second contact protrusion 43 are formed with contact protrusions protruding toward the fixed portion 59, and the width (left-right dimension) of the contact protrusion on the first contact protrusion 40 side is set to the second contact. You may make it wider than the width | variety of the contact protrusion on the protrusion 43 side.

10 connector 20 receptacle connector 21 receptacle insulator 22 annular wall portion 22a receiving recess 23 bottom plate portion 25 first contact mounting groove 26 tail mounting groove 28 body mounting groove 29 wide mounting groove 30 contacted portion 31 narrow mounting groove 33 second contact Mounting groove 35 First receptacle contact 36 Tail piece 37 Fixing portion 37a Locking protrusion 38 Outer elastic deformation portion (first elastic deformation portion)
38a Bent portion 39 Inner elastic deformation portion (second elastic deformation portion)
40 First contact protrusion 41 Gradually varying width part 42 Deformation restricting part 43 Second contact protrusion 45 Second receptacle contact 50 Plug connector 51 Plug insulator 52 Fitting convex part 53 Outer peripheral annular wall part 54 Ceiling part 55 Fitting concave part 57 First plug contact 58 Tail piece 59 Fixing part (plug side contact part)
60 Inclined End 62 Second Plug Contact CB1 CB2 Circuit Board

Claims (5)

A plug connector having a plug insulator and a plug contact having a plug-side contact portion extending linearly and supported by the plug insulator;
A receptacle connector having a receptacle insulator connectable to the plug insulator, and a receptacle contact attached to the receptacle insulator and capable of coming into contact with and separating from the plug-side contact portion of the plug contact;
In a connector comprising:
The receptacle contact is
A fixed portion fixed to the receptacle insulator;
A first elastic deformation portion extending from an end of the fixed portion;
A bending portion that constitutes a connection portion of the first elastic deformation portion with the fixed portion, and separates the first elastic deformation portion in a free state from the receptacle insulator;
A second elastic deformation portion extending from the tip of the first elastic deformation portion toward the fixed portion and facing the first elastic deformation portion while forming a gap;
Comprising
The second elastic deformation part is
A first contact protrusion for slidingly contacting the plug-side contact portion when the plug insulator and the receptacle insulator are connected, and elastically deforming the second elastic deformation portion toward the first elastic deformation portion;
When the plug-side contact portion and the first contact protrusion are not in contact with each other, the plug-side contact portion is not in contact with the first contact protrusion, and either of the receptacle insulator and the first elastic deformation portion When the plug-side contact portion and the first contact protrusion come into contact with each other, the contacted portion is separated from the contacted portion located on the first elastically deforming portion side with respect to the second elastically deforming portion. A deformation restricting portion that comes into contact with the portion;
It is located on the distal end side of the second elastic deformation portion from the deformation restricting portion, and is in contact with the first contact protrusion of the plug-side contact portion when the plug insulator and the receptacle insulator are connected. A second contact protrusion that comes into contact with a portion located on the tip side from the portion;
A connector comprising: The connector according to claim 1, wherein
On the surface of the receptacle insulator, a wide mounting groove extending in a direction parallel to the first elastic deformation portion and having the contacted portion on the bottom surface is recessed,
On the bottom surface of the wide mounting groove, a narrow mounting groove parallel to the wide mounting groove and narrower than the wide mounting groove is provided,
While positioning the first elastic deformation portion in the narrow mounting groove, the second elastic deformation portion is positioned in the wide mounting groove,
The connector which formed the said deformation | transformation control part wider than the said narrow attachment groove in the said 2nd elastic deformation part. The connector according to claim 2, wherein
The second elastic deformation portion is located between the first contact protrusion and the second contact protrusion, and has a gradually changing width portion whose outer shape forms a curved shape;
The connector which formed the said deformation | transformation control part in the intermediate part of this gradually changing width part. The connector according to claim 3, wherein
The connector in which the gradually changing width portion has a curved shape that protrudes toward the first elastic deformation portion. The connector according to any one of claims 1 to 4,
A connector in which the first elastic deformation portion is separated from the receptacle insulator in a state before the plug insulator and the receptacle insulator are connected.

Images