JP2017212035A - Electric connector and electric connector device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric connector which can be easily fitted with a mating electric connector and makes unexpected cancellation of the fitting unlikely to occur, and an electric connector device.SOLUTION: An engagement member 140 of a receptacle connector 100 comprises a first inclined arm 142, an elastic first rising part 143 at a free end side, and a first protruding part 144. The first inclined arm extends from a first short wall 121 to a second short wall 122 along a circumference of a plug connector 200 that is fitted into a receiving space S, while being inclined in a direction closer to a top portion of the second short wall 122. The first inclined arm constitutes an elastic cantilever beam by fixing one end to the first short wall 121 and defining the other end as a free end. The first rising part rises from the free end of the first inclined arm 142 and is disposed between the plug connector 200 and the second short wall 122. The first protruding part is formed in the first rising part 143 at the free end side, protrudes towards the first short wall 121 and elastically presses the plug connector 200.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an electrical connector and an electrical connector device.

  An electrical connector device that includes an electrical connector and a mating electrical connector and is electrically connected by fitting them together is used for electrical connection between circuit boards, for example. In the electrical connector device, it is important to increase the reliability of electrical connection between the electrical connector and the mating electrical connector, and an electrical connector that has been improved for this purpose is disclosed in Patent Document 1 below. .

  The electrical connector of Patent Document 1 includes an insulating housing that defines a receiving space for receiving a mating electrical connector by a bottom wall and a peripheral wall rising from the bottom wall, and contacts and engaging members provided in the housing. . The contact is electrically connected to the mating contact of the mating electrical connector fitted in the receiving space.

  The engaging member includes an arm portion extending horizontally in contact with the bottom wall from one wall portion facing the peripheral wall toward the other wall portion, and an end of the arm portion on the other wall side. A rising portion that rises from the portion, and a protruding portion that is formed at the rising portion and protrudes toward one wall portion. The protrusion presses the mating electrical connector by the elasticity of the rising portion.

JP-A-2015-122189

  In the electrical connector device, the arm portion is supported on the bottom wall over the entire length. For this reason, the arm portion cannot be bent when the mating electrical connector is fitted. When fitting the mating electrical connector, the rising part bends in a direction approaching the other wall part, and the projection part is retracted so as to approach the other wall part, so that the mating electrical connector enters the receiving space. Is acceptable.

  In such a configuration, in order to facilitate fitting of the mating electrical connector, it is necessary to suppress the elastic coefficient of the rising portion or to design the protruding amount of the protruding portion to be small. However, if it does so, since the force required to remove the mating electrical connector is reduced, unexpected release of the mating with the mating electrical connector is likely to occur.

  The present invention has been made in view of the above circumstances, and provides an electrical connector and an electrical connector device that can be easily fitted to a mating electrical connector and are less likely to be unexpectedly released from the fitting. With the goal.

In order to achieve the above object, an electrical connector according to the first aspect of the present invention provides:
An insulating housing having a bottom wall and a peripheral wall rising from the bottom wall, and defining a receiving space for receiving a mating electrical connector by the bottom wall and the peripheral wall;
A plurality of contacts provided in a partial region of the peripheral wall, each electrically connected to a mating contact of the mating electrical connector fitted in the receiving space;
From one wall portion facing the peripheral wall excluding the partial region toward the other wall portion, along the peripheral edge of the mating electrical connector fitted in the receiving space, the other wall portion A first inclined arm constituting an elastic cantilever having an inclined end extending toward the top and having one end fixed to the one wall and the other end being a free end A first rising portion having elasticity, which is disposed between the mating electrical connector fitted in the receiving space and the other wall portion, rising from the free end portion of the first inclined arm portion, and An engaging member formed on the first rising portion, protruding toward the one wall portion, and having a first protruding portion that elastically presses the mating electrical connector fitted in the receiving space;
Is provided.

The engaging member has a first extending portion that extends from the top portion of the first rising portion toward the other wall portion;
The housing protrudes in an eave shape from the position of the other wall portion higher than the first extension portion in the height direction of the wall portion toward the one wall portion, and faces the first extension portion. You may have an eaves part to do.

The engaging member is connected to the one end portion of the first inclined arm portion, and both in the height direction of the one wall portion and the direction in which the one wall portion and the other wall portion face each other. Having a first overhang projecting in the intersecting direction;
The one wall portion may sandwich the first overhang portion.

  The electrical connector is connected to the one end portion of the first inclined arm portion, and extends outward along a direction in which the one wall portion and the other wall portion face each other. You may have the 1st to-be-fixed part fixed to the attachment target object attached.

The electrical connector is
From the other wall portion toward the one wall portion, along the peripheral edge of the mating electrical connector fitted into the receiving space, the inclined portion extends toward the top portion of the one wall portion, A second inclined arm portion constituting an elastic cantilever having an end portion fixed to the other wall portion and the other end portion being a free end portion; and the free end of the second inclined arm portion The second rising portion having elasticity and the second rising portion are disposed between the mating electrical connector fitted in the receiving space and the one wall portion, and are formed on the other rising portion. A reverse engagement member having a second protrusion that protrudes toward the wall and elastically presses the mating electrical connector fitted in the receiving space;
May be further provided.

An electrical connector device according to the second aspect of the present invention provides:
A first electrical connector comprising the electrical connector according to the first aspect;
The mating electrical connector having an engaged member that holds the engagement state with the first electrical connector together with the engagement member when the first projecting portion of the engagement member in the first electrical connector is hooked. A second electrical connector as
Is provided.

The engaging member and the engaged member have conductivity,
When the first electrical connector and the second electrical connector are fitted, the engaging member and the engaged member may be electrically connected.

  According to the present invention, when the mating electrical connector is fitted into the receiving space, the first rising portion and the first inclined arm portion are pressed against the mating electrical connector through the first protrusion. Since the first inclined arm portion constitutes a cantilever, not only the first rising portion but also the first inclined arm portion is bent by the pressing. That is, by the said press, while a 1st standing part bends in the direction which approaches the other wall part, a 1st inclination arm part bends in the direction which fits the other party electrical connector. With the bending of the first rising portion and the first inclined arm portion, the first protruding portion is retracted so as to approach the other wall portion. As described above, not only the bending of the first rising portion but also the bending of the first inclined arm portion causes the first protruding portion to be retracted, so that the elastic coefficient of the first rising portion can be suppressed to be small or the first protruding portion can be protruded. Even if the amount is not designed to be small, the fitting with the mating electrical connector can be facilitated.

  Further, the first inclined arm portion can bend in the direction to be removed when a force in the direction to be removed from the receiving space is applied to the mating electrical connector, but the bending of the first inclined arm portion in the direction to be removed is The retraction of the first protrusion is not brought about. For this reason, it is difficult for unexpected release of the mating with the mating electrical connector.

It is a disassembled perspective view which shows the state before fitting of the receptacle connector and plug connector which comprise the electrical connector apparatus which concerns on embodiment. It is a perspective view which shows the part fitted with the receptacle connector of a plug connector. It is a top view of a receptacle connector. FIG. 4 is a cross-sectional view of the receptacle connector and the plug connector fitted to each other as seen from the direction of the line AA shown in FIG. 3. FIG. 5 is a cross-sectional view of the receptacle connector and the plug connector fitted to each other as seen from the direction of the line BB shown in FIG. 3. (A) is a perspective view of an engaging member, (B) is a perspective view of a reverse direction engaging member. (A) is a fragmentary sectional view parallel to the longitudinal direction and a transversal direction of a receptacle connector, (B) is a fragmentary sectional view in the position of the CC line shown to (A). It is a perspective view which shows the back surface which contact | connects the circuit board of a receptacle connector. (A) is a conceptual diagram which shows a mode that a plug connector is inserted, (B) is a conceptual diagram which shows a mode that a plug connector is extracted.

  Hereinafter, an electrical connector device according to an embodiment of the present invention will be described with reference to the drawings. In the figure, the same or corresponding parts are denoted by the same reference numerals.

  As shown in FIG. 1, an electrical connector device 300 according to this embodiment includes a receptacle connector 100 as an electrical connector attached to a circuit board and a plug connector 200 as a mating electrical connector attached to another circuit board. . In FIG. 1, each circuit board is not shown for easy understanding.

  The receptacle connector 100 defines a receiving space S in which the plug connector 200 is received, and the plug connector 200 has an outer shape corresponding to the receiving space S. When the plug connector 200 is fitted into the receiving space S and the both connectors 100 and 200 are fitted, both the connectors 100 and 200 are electrically connected.

  In this electrical connector device 300, the receptacle connector 100 is configured to prevent the connector 100 and 200 from being unexpectedly released without impairing the ease of operation of fitting both the connectors 100 and 200. The plug connector 200 includes a pair of engagement members 140 and a reverse engagement member 150, another pair of engagement members 160 and a reverse engagement member 170, and the plug connector 200 includes engaged members 250 and 260. It is the biggest feature.

  Hereinafter, first, the configuration of the plug connector 200 will be described in detail.

  The plug connector 200 has a configuration in which a plurality of plug contacts 240 and the above-described engaged members 250 and 260 are held in an insulating plug housing 210. The plug housing 210 is made of resin, and the plug contacts 240 and the engaged members 250 and 260 are made of metal.

  As shown in FIG. 2, the plug housing 210 includes a plate-like bottom wall 220 disposed in parallel with the mounting surface of the circuit board to which the plug housing 210 is attached, and a frame wall 230 that rises in a frame shape from the periphery of the bottom wall 220. Have The bottom wall 220 and the frame wall 230 form an outer shape corresponding to the receiving space S shown in FIG.

  The plug housing 210 has a rectangular shape with one direction as a longitudinal direction in a plan view. The frame wall 230 connects the pair of side walls 231 and 232 facing each other in a short direction perpendicular to the longitudinal direction in a plan view, and both the longitudinal ends of the side walls 231 and 232 and faces each other in the longitudinal direction. A pair of end walls 233 and 234 are provided.

  The plug contact 240 is held on each of the side walls 231 and 232. In each of the side walls 231 and 232, a plurality of plug contacts 240 are arranged at intervals in the longitudinal direction. Each plug contact 240 has a tail portion 241 extending outward in the lateral direction from the side wall 231 or 232 holding the contact. The tail portion 241 is electrically and mechanically connected by soldering to a wiring pattern printed on a circuit board as a connection object.

  The engaged member 250 is provided on one end wall 233. The engaged member 250 extends along the end wall 233 from each of the short direction extending portion 251 extending in the short direction at the top portion of the end wall 233 and the both ends of the short direction extending portion 251 in the short direction. And a pair of tail portions 253 extending outward in the lateral direction from the lower ends of the respective hanging portions 252.

  Each of the pair of hanging portions 252 is formed with a claw portion 252a that protrudes outward in the lateral direction. The nail | claw part 252a is formed in the drooping part 252 over the full width in the said longitudinal direction. In FIG. 2, only the claw portion 252 a formed on the front-side hanging portion 252 of the pair of hanging portions 252 appears, but the front-side hanging portion 252 also appears on the back-side hanging portion 252. The claw portion 252a is formed at the same height as the claw portion 252a.

  Another engaged member 260 is provided on the other end wall 234. The engaged member 260 also has the same shape as the engaged member 250, and similarly to the engaged member 250, a pair of droops each having a short-direction extending portion 261 and a claw portion 262 a formed in each. A portion 262 and a pair of tail portions 263. The tail portions 253 and 263 are mechanically connected to the circuit board by soldering.

  Next, the configuration of the receptacle connector 100 will be described in detail.

  Returning to FIG. 1, the receptacle connector 100 includes an insulating receptacle housing 180, a plurality of receptacle contacts 190, a pair of engagement members 140, a reverse engagement member 150, and another pair of engagement members 160. And the reverse direction engagement member 170 has the structure hold | maintained. The receptacle housing 180 is made of resin, and the receptacle contact 190, the engaging members 140 and 160, and the reverse engaging members 150 and 170 are made of metal.

  The receptacle housing 180 defines a receiving space S in which the plug connector 200 is received. The pair of engaging members 140 and the reverse direction engaging member 150 are engaged with the engaged member 250 of the plug connector 200, and the other pair of engaging members 160 and the reverse direction engaging member 170 are engaged members. 260 is engaged. Each of the receptacle contacts 190 is electrically connected to the plug contact 240 of the plug connector 200 fitted in the receiving space S. Hereinafter, each part will be described in detail.

  The receptacle housing 180 surrounds the plate-like bottom wall 130 disposed in parallel with the mounting surface of the circuit board to which the receptacle housing 180 is mounted, the raised portion 110 raised from the bottom wall 130 in an island shape, and the entire circumference of the raised portion 110. The frame-shaped peripheral wall 120 rising from the peripheral edge of the bottom wall 130 as described above.

  A space surrounded by the raised portions 110, the peripheral wall 120, and the bottom wall 130 is a receiving space S. The plug connector 200 is fitted into the receiving space S and removed from the receiving space S in a direction parallel to the height direction of the raised portion 110 and the peripheral wall 120. When the plug connector 200 is fitted in the receiving space S, the frame wall 230 shown in FIG. 2 of the plug connector 200 is accommodated in the receiving space S.

  As shown in FIG. 3, the receptacle housing 180 has a rectangular shape with one direction (the left-right direction in FIG. 3) as a longitudinal direction in plan view. Hereinafter, the longitudinal direction is the X-axis direction, the short direction (vertical direction in FIG. 3) perpendicular to the longitudinal direction in plan view is the Y-axis direction, and the height direction of the ridge 110 and the peripheral wall 120 (in FIG. The description is continued by defining an XYZ orthogonal coordinate system in which the vertical direction is defined as the Z-axis direction.

  The peripheral wall 120 has a pair of long wall portions 127 and 128 that face the raised portion 110 in the Y-axis direction. Each of the long wall portions 127 and 128 extends in the X-axis direction. A plurality of receptacle contacts 190 are held on the long wall portions 127 and 128. In each of the long wall portions 127 and 128, a plurality of receptacle contacts 190 are arranged at intervals in the X-axis direction. Each receptacle contact 190 has a tail portion 191 extending outward in the Y-axis direction from the long wall portion 127 or 128 holding the contact. The tail portion 191 is electrically and mechanically connected to the wiring pattern printed on the circuit board by soldering.

  Further, the peripheral wall 120 is connected to the first short wall portion 121 connected to one end portion in the X-axis direction of one long wall portion 127 and the one end portion in the X-axis direction of the other long wall portion 128, and the first short wall portion 121 is connected. And the second short wall portion 122 facing the Y axis direction, the first short wall portion 121 and the second short wall portion 122, and the end wall portion 125 facing the raised portion 110 in the X axis direction. And have.

  Further, the peripheral wall 120 is connected to the third short wall portion 123 connected to the other end portion in the X-axis direction of the one long wall portion 127 and the other end portion in the X-axis direction of the other long wall portion 128 to be connected to the third short wall portion. The end wall which connects the 4th short wall part 124 facing the part 123 and the Y-axis direction, the 3rd short wall part 123, and the 4th short wall part 124, and faces the protruding part 110 in the X-axis direction. Part 126.

  And between the 1st short wall part 121 and the 2nd short wall part 122 which face each other, the engagement member 140 and the reverse direction engagement member 150 are extended in the Y-axis direction. Similarly, the engaging member 160 and the reverse engaging member 170 extend in the Y-axis direction between the third short wall portion 123 and the fourth short wall portion 124 facing each other. The engagement member 140 and the reverse engagement member 150 and the engagement member 160 and the reverse engagement member 170 are adjacent to each other in the X-axis direction.

  In the receptacle connector 100, the configuration including the third short wall portion 123, the fourth short wall portion 124, the engagement member 160, and the reverse engagement member 170 includes the first short wall portion 121 and the second short wall portion. 122, the engagement member 140, and the configuration including the reverse engagement member 150 are the same. Therefore, the latter configuration will be described below as a representative.

  As shown in FIG. 4, the engaging member 140 is fixed to the first end wall portion 121 via the first fixing portion 141 and the first fixing portion 141 fixed to the first short wall portion 121. A first inclined arm portion 142 that extends from the fixed end portion toward the second short wall portion 122 and has the other end portion as a free end portion, and the first inclined arm portion 142 is free. A first rising portion 143 on the free end side rising from the end portion, and a first protruding portion 144 formed on the first rising portion 143 on the free end side and protruding toward the first short wall portion 121. .

  The first fixed portion 141 is formed in a U shape at the top portion of the first rising portion 1411 on the fixed end side rising from the fixed end portion of the first inclined arm portion 142 and the first rising portion 1411 on the fixed end side. A first hanging portion 1412 that is folded and drooped, a first tail portion 1413 that extends outward from the hanging lower end portion of the first hanging portion 1412 in the Y-axis direction, and a first drooping portion 1412 are formed in the X-axis direction. And a first overhanging portion 1414 overhanging. The first fixing part 141 is fixed to the first short wall part 121 through the first overhanging part 1414. The structure for fixing will be described later with reference to FIG. The first tail portion 1413 serves as a fixed portion to be fixed to the attachment target, and is fixed to the circuit board K as the attachment target by soldering.

  The first inclined arm portion 142 is a top portion of the second short wall portion 122 along the peripheral edge of the plug connector 200 fitted in the receiving space S from the first short wall portion 121 toward the second short wall portion 122. Inclined and extended in a direction approaching. Note that the bottom wall 130 shown in FIG. 3 does not exist between the first inclined arm portion 142 and the circuit board K. Specifically, an opening A that exposes the first inclined arm portion 142 to the circuit board K side is formed at a position of the receptacle housing 180 facing the first inclined arm portion 142 (see also FIG. 8). ). That is, the first inclined arm portion 142 is not supported by the bottom wall 130, and only one end portion is supported by the first fixing portion 141. Thereby, the 1st inclination arm part 142 comprises the cantilever which has elasticity. Note that a gap is provided between the first inclined arm portion 142 and the circuit board K so that the first inclined arm portion 142 can be bent.

  The first rising portion 143 on the free end side is disposed between the plug connector 200 fitted in the receiving space S and the second short wall portion 122. The first rising portion 143 on the free end side is directed away from the second short wall portion 122 as it approaches the top portion of the second short wall portion 122 from the free end portion of the first inclined arm portion 142, that is, the receiving space S. It inclines in the direction which approaches the plug connector 200 inserted in. The first rising portion 143 on the free end side also has elasticity and can be bent.

  The 1st protrusion part 144 is formed in the top part of the 1st standing part 143 by the side of a free end. The first protrusion 144 presses the plug connector 200 fitted in the receiving space S by the elasticity of the first rising portion 143 on the free end side. The first projecting portion 144 is hooked on the claw portion 252 a formed on the engaged member 250 of the plug connector 200. In this way, the engaging member 140 is engaged with the engaged member 250.

  The engaging member 140 has a first extending portion 145 extending from the first protruding portion 144 at the top portion of the first rising portion 143 on the free end side toward the second short wall portion 122. In a state where the plug connector 200 is fitted in the receiving space S, a gap is secured between the first extending portion 145 and the second short wall portion 122.

  On the other hand, the receptacle housing 180 has an eaves portion 1221 protruding in an eave shape from the position of the second short wall portion 122 higher than the first extension portion 145 toward the first short wall portion 121. The eaves part 1221 faces the first extension part 145 in the Z-axis direction.

  The receptacle housing 180 has an eaves portion 1211 protruding in an eave shape toward the second short wall portion 122 from a position higher than the top portion of the first rising portion 1411 of the first short wall portion 121 on the fixed end side. Also have. The eaves portion 1211 faces the top portion of the first rising portion 1411 on the fixed end side in the Z-axis direction.

  Next, the reverse engagement member 150 will be described with reference to FIG. The reverse engagement member 150 has the same shape as the engagement member 140 shown in FIG. 4, but symmetrically with the engagement member 140, the second inclined arm portion 152 is fixed to the second short wall portion 122 side. It has an end and is attached in a direction having a free end on the first short wall 121 side.

  Specifically, the reverse-facing engagement member 150 is fixed to the second short wall portion 122 via the second fixing portion 151 and the second fixing portion 151 fixed to the second short wall portion 122. A second inclined arm portion 152 extending from the fixed end portion toward the first short wall portion 121 and having the other end portion as a free end portion, and a free end of the second inclined arm portion 152. A second rising portion 153 on the free end side rising from the portion, a second protruding portion 154 formed on the second rising portion 153 on the free end side and protruding toward the second short wall portion 122, and a second A second extending portion 155 extending from the protruding portion 154 toward the first short wall portion 121;

  The second fixed portion 151 is U-shaped at the top portion of the second rising portion 1511 on the fixed end portion rising from one end portion of the second inclined arm portion 152 and the second rising portion 1511 on the fixed end portion side. A second drooping portion 1512 that is folded and drooped, a second tail portion 1513 that extends outward from the drooping lower end portion of the second drooping portion 1512 in the Y-axis direction and is soldered to the circuit board K, and a second drooping portion 1512 and a second overhanging portion 1514 that overhangs in the X-axis direction.

  In addition, the eaves part 1211 of the first short wall part 121 has the Z-axis as well as the second extension part 155 of the reverse engagement member 150 in addition to the top part of the first rising part 1411 on the fixed end side as described above. Opposite direction. Further, the eaves portion 1221 of the second short wall portion 122 is opposed to the second rising portion 1511 on the fixed end portion side of the reverse engagement member 150 in the Z-axis direction in addition to the first extension portion 145 as described above. doing.

  Next, specific shapes of the engagement member 140 and the reverse engagement member 150 and a structure for fixing them to the receptacle housing 180 will be described with reference to FIGS.

  As shown in FIG. 6A, the engaging member 140 includes a first rising portion 1411 on the fixed end side, a first inclined arm portion 142, and a first rising portion 143 on the free end side. With respect to the protruding portion 1414 and the first tail portion 1413, the X-axis direction is one side (X-axis plus direction).

  As a result, the first overhanging portion 1414 has a large first overhanging portion 1414a that greatly protrudes in one direction in the X-axis direction (X-axis minus direction) and a small first portion that protrudes in the other direction in the X-axis direction (in the plus direction of the X-axis). 1 overhanging portion 1414b. The amount of overhang in the minus direction of the X-axis of the large first overhang 1414a relative to the position in the X-axis direction of the first rising portion 1411 on the fixed end side is the X-axis plus direction of the small first overhang 1414b. Greater than overhang. The large first overhanging portion 1414a and the small first overhanging portion 1414b are press-fitted into the first short wall portion 121 when the receptacle connector 100 is assembled, as will be described later.

  FIG. 6B shows the reverse engagement member 150. The reverse engagement member 150 has the same shape as the engagement member 140. However, in the reverse-direction engaging member 150, the large second overhanging portion 1514a overhangs the other in the X-axis direction (X-axis plus direction) and the small second overhanging portion 1514b is symmetrical with the engaging member 140. It is attached in a direction protruding in one direction (X-axis minus direction). The large second overhanging portion 1514a and the small second overhanging portion 1514b are press-fitted into the second short wall portion 122 when the receptacle connector 100 is assembled, as will be described later.

  As shown in FIG. 7A, in the aspect in which the engagement member 140 and the reverse engagement member 150 are attached, the reverse engagement member 150 is connected to the large first overhanging portion 1414a of the engagement member 140 and the Y Facing in the axial direction, the engaging member 140 faces the large second overhanging portion 1514a of the reverse-facing engaging member 150 in the Y-axis direction. In this way, by engaging the engaging member 140 and the reverse engaging member 150 adjacent to each other in the X-axis direction, the positions of the first tail portion 1413 and the second tail portion 1513 in the X-axis direction are evenly aligned.

  In addition, the first short wall portion 121 includes a holding portion 121a that holds the large first overhanging portion 1414a and prevents the displacement of the large first overhanging portion 1414a in the direction toward the second short wall portion 122, and a small holding portion 121a. The first overhanging portion 1414b has a holding portion 121b that prevents displacement of the small first overhanging portion 1414b in the direction toward the second short wall portion 122 by holding the first overhanging portion 1414b. The sandwiching parts 121a and 121b have a substantially L-shaped cross section parallel to the XY plane. The 2nd short wall part 122 also has the same clamping parts 122a and 122b.

  As shown in FIG. 7B, the first short wall portion 121 is in contact with the large first overhanging portion 1414a and approaches the eaves portion 1211 of the large first overhanging portion 1414a, that is, in the plus direction of the Z axis. And an upper displacement blocking portion 121d that contacts the small first overhanging portion 1414b and blocks the displacement of the small first overhanging portion 1414b in the positive direction of the Z-axis. Although not shown, the second short wall portion 122 also has a similar upward displacement prevention portion.

  The engaging member 140 is fixed to the first short wall portion 121 by the upper displacement prevention portions 121c and 121d and the sandwiching portions 121a and 121b shown in FIG. Similarly, the reverse-direction engaging member 150 is fixed to the second short wall portion 122 by sandwiching portions 122a and 122b and an upper displacement prevention portion (not shown).

  With reference to FIG. 8, the attachment method of the engaging member 140 and the reverse direction engaging member 150 is demonstrated. The engaging member 140 and the reverse-facing engaging member 150 are attached by press-fitting in the positive direction of the Z-axis from the opening A formed on the back surface of the receptacle housing 180 facing the mounting surface of the circuit board.

  Specifically, when the engaging member 140 is press-fitted from the opening A, as shown in FIG. 7A, the large first overhanging portion 1414a and the small first overhanging portion 1414b are respectively formed into the first short wall portion. As shown in FIG. 7 (B), the first engaging member 140 of the engaging member 140 is engaged with the sandwiching portions 121a and 121b of the 121 and hits the upper displacement prevention portions 121c and 121d. Fixing to the short wall 121 is achieved.

  Similarly, when the reverse-direction engaging member 150 is press-fitted from the opening A, as shown in FIG. 7A, the large second overhanging portion 1514a and the small second overhanging portion 1514b are respectively connected to the second short wall portion. Fixing the reverse engagement member 150 to the second short wall portion 122 is achieved by biting into the clamping portions 122a and 122b of the 122 and being pressed between them and hitting an upward displacement prevention portion (not shown). Is done. The same applies to the engagement member 160 and the reverse-direction engagement member 170.

  Hereinafter, the operation of the electrical connector device 300 when the plug connector 200 is fitted and removed will be described with reference to FIG. Since the action of the reverse engagement member 150 is the same as that of the engagement member 140, the action of the engagement member 140 will be described as a representative.

  As shown in FIG. 9 (A), when the user fits the plug connector 200 into the receiving space S, the first rising portion 143 and the first inclined arm portion 142 on the free end side are inserted through the first protrusion 144, It is pressed by the engaged member 250 of the plug connector 200. In the prior art, only the member corresponding to the first rising portion 143 on the free end side is bent by this pressing, but in this embodiment, the first inclined arm portion 142 forms a cantilever. Therefore, not only the first rising portion 143 on the free end side but also the first inclined arm portion 142 is bent.

  That is, the first rising portion 143 on the free end side approaches the second short wall portion 122 with the free end of the first inclined arm portion 142 as a fulcrum by being pressed by the engaged member 250 of the plug connector 200. The first inclined arm portion 142 bends in the direction in which the plug connector 200 is fitted, that is, the Z-axis minus direction, with the one end portion that is the fixed end portion serving as a fulcrum. With the bending of the first rising portion 143 and the first inclined arm portion 142 on the free end side, the first projecting portion 144 is retracted so as to approach the second short wall portion 122.

  In addition to the first rising portion 143 and the first inclined arm portion 142 on the free end side, the first rising portion 1411 on the fixed end side can also be bent so as to approach the first drooping portion 1412 with the top portion as a fulcrum. .

  In FIG. 9A, the first rising portion 143 on the free end side and the first rising portion 1411 on the fixed end side are bent in order to clearly show only the effect brought about by the bending of the first inclined arm portion 142. First, an imaginary line shows that only the first inclined arm portion 142 is bent. Even if the first rising portion 143 on the free end side and the first rising portion 1411 on the fixed end portion do not bend, if the first inclined arm portion 142 bends by the angle θ with the fixed end as a fulcrum, One protrusion 144 retracts by a distance d corresponding to θ.

  As described above, according to the present embodiment, not only the bending of the first rising portion 143 on the free end portion side but also the bending of the first inclined arm portion 142 causes the first protruding portion 144 to be retracted. The plug connector 200 and the receptacle connector 100 can be easily fitted to each other without suppressing the elastic coefficient of the first rising portion 143 on the portion side or designing the protruding amount of the first protruding portion 144 to be small. .

  Next, with reference to FIG. 9 (B), the case where the force of the direction extracted from the receiving space S acts on the plug connector 200 is demonstrated. In this case, the first protrusion 144 can be lifted by the claw 252a while the first protrusion 144 is caught by the claw 252a. Accordingly, the first inclined arm portion 142 can bend in the direction in which the plug connector 200 is removed with the fixed end portion as a fulcrum, that is, in the Z-axis plus direction.

  However, the bending of the first inclined arm portion 142 in the positive direction of the Z axis does not cause retraction in the direction of approaching the second short wall portion 122 of the first protruding portion 144. In addition, the plug connector 200 is pulled in the negative Z-axis direction by the restoring force of the bent first inclined arm portion 142. For this reason, unexpected release of the fitting between the plug connector 200 and the receptacle connector 100 is unlikely to occur due to accidental impact or the like.

  When the user pulls out the plug connector 200 from the receiving space S, the first inclined arm portion 142 is further bent in the Z-axis plus direction, and the first rising portion 1411 on the fixed end side also has the top portion as a fulcrum. And can be bent away from the first hanging portion 1412.

  And when the 1st inclination arm part 142 bends more than fixed, the 1st extension part 145 contacts the eaves part 1221. Thereby, the further bending of the 1st inclination arm part 142 and the 1st standing part 1411 by the side of a fixed end is controlled. For this reason, it is prevented that the 1st inclination arm part 142 and the 1st standing part 1411 by the side of a fixed end bend more than an elastic limit, and raise | generate a plastic deformation.

  Then, when the user gives a force in a direction to further remove the plug connector 200, the first rising portion 143 on the free end side bends in a direction approaching the second short wall portion 122. Accordingly, the first protrusion 144 is retracted, so that the engagement between the first protrusion 144 and the claw 252a is released, and the plug connector 200 is allowed to be removed.

  Conventionally, a member corresponding to the engaging member 140 is attached by fitting it into the receptacle housing 180 in the direction in which the plug connector 200 is fitted, that is, in the negative Z-axis direction. In this case, when the plug connector 200 is pulled out, the member corresponding to the engaging member 140 may be pulled out of the receptacle housing 180 together with the plug connector 200.

  On the other hand, in this embodiment, as shown in FIG. 8, the engaging member 140 is attached by being press-fitted in the Z-axis plus direction from the back surface side of the receptacle housing 180. As shown in FIG. 7B, the first short wall 121 has upper displacement blocking portions 121c and 121d that block the engagement member 140 from being displaced in the positive direction of the Z-axis, and the second short wall The wall portion 122 has an eaves portion 1221.

  For this reason, even if the user repeatedly engages and releases the connectors 100 and 200, the engaging member 140 is unlikely to be detached from the receptacle housing 180 in the Z-axis plus direction. The same applies to the engagement member 160 and the reverse-direction engagement members 150 and 170.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to this. For example, the following modifications are possible.

  In the embodiment described above, the engaging members 140 and 160, the reverse engaging members 150 and 170, and the engaged members 250 and 260 are mechanically fixed to the circuit board as the connection target. These members are connected not only mechanically but also electrically to the connection object, and when the receptacle connector 100 and the plug connector 200 are fitted to each other, the engaging member 140 and the reverse-facing engaging member 150 are connected to the connected object. The engaging member 250, the engaging member 160, the reverse-direction engaging member 170, and the engaged member 260 may be electrically connected to each other. Specifically, the engagement members 140 and 160, the reverse engagement members 150 and 170, and the engaged members 250 and 260 may function as ground terminals and power supply terminals.

  In the above-described embodiment, the claw portion 252a as the convex portion is formed on the engaged member 250. However, the engaged member 250 may be formed with a concave portion that is hooked when the first protrusion 144 is fitted. . The same applies to the engaged member 260. Further, the shapes of the engaged members 250 and 260 are not particularly limited as long as the engaged state with the receptacle connector 100 can be maintained by the first protruding portion 144 being hooked.

  In the embodiment described above, the receptacle connector 100 includes two pairs of engagement members and reverse engagement members, but may include only one pair of engagement members and reverse engagement members. In this case, it is preferable that the engaging member is disposed at one end portion in the X-axis direction of the receptacle connector 100 and the opposite-direction engaging member is disposed at the other end portion in the X-axis direction. However, it is also possible to arrange both the engaging member and the reversely engaging member at one end of the receptacle connector 100 in the X-axis direction. Further, the receptacle connector 100 may include three or more pairs of engagement members and reverse-direction engagement members. Further, the receptacle connector 100 may include an engagement member without including the reverse-direction engagement member.

  In the above embodiment, the engagement members 140 and 160 and the reverse-direction engagement members 150 and 170 are provided in the receptacle connector 100, and the engaged members 250 and 260 are provided in the plug connector 200. 140 and 160 and reverse-direction engaging members 150 and 170 may be provided, and the engaged members 250 and 260 may be provided on the receptacle connector 100.

  Various embodiments and modifications can be made to the present invention without departing from the broad spirit and scope of the present invention. The above embodiment is for explaining the present invention and does not limit the scope of the present invention. The scope of the present invention is shown not by the embodiments but by the claims. Various modifications within the scope of the claims and the scope of the equivalent invention are considered to be within the scope of the present invention.

  DESCRIPTION OF SYMBOLS 100 ... Receptacle connector (electric connector, 1st electrical connector), 110 ... Raised part, 120 ... Perimeter wall, 121 ... 1st short wall part (one wall part), 122 ... 2nd short wall part (the other wall part) 1211, 1221 ... eaves part, 121a, 121b, 122a, 122b ... clamping part, 121c, 121d ... upper displacement prevention part, 123 ... third short wall part (one wall part), 124 ... fourth short wall part ( 125, 126 ... end wall, 127, 128 ... long wall (part of the peripheral wall), 130 ... bottom wall, 140 ... engaging member, 141 ... first fixing part, 1411 ... fixing First rising portion on the end side, 1412 ... first hanging portion, 1413 ... first tail portion (first fixed portion), 1414 ... first overhanging portion, 1414a ... large overhanging portion, 1414b ... small overhanging portion , 142 ... 1st inclined arm part, 143 ... Free First rising portion (first rising portion) on the part side, 144... First projecting portion, 145... First extending portion, 150 .. reverse engagement member, 151... Second fixing portion, 1511. Second rising portion, 1512 ... second hanging portion, 1513 ... second tail portion, 1514 ... second overhanging portion, 1514a ... large overhanging portion, 1514b ... small overhanging portion, 152 ... second inclined arm portion, 153 ... second rising part (second rising part) on the free end side, 154 ... second projecting part, 155 ... second extending part, 160 ... engaging member, 170 ... reverse engaging member, 180 ... for receptacle Housing (housing) 190 ... Receptacle contact (contact), 200 ... Plug connector (mating electrical connector, second electrical connector), 210 ... Plug housing, 220 ... Bottom wall, 230 ... Frame wall, 231, 32 ... side wall, 233, 234 ... end wall, 240 ... plug contact, 250, 260 ... engaged member, 251, 261 ... short direction extending part, 252, 262 ... hanging part, 252a, 262a ... claw part , 191, 241, 253, 263 ... tail portion, 300 ... electrical connector device, A ... opening, K ... circuit board (object to be attached), S ... receiving space.

Claims (7)

An insulating housing having a bottom wall and a peripheral wall rising from the bottom wall, and defining a receiving space for receiving a mating electrical connector by the bottom wall and the peripheral wall;
A plurality of contacts provided in a partial region of the peripheral wall, each electrically connected to a mating contact of the mating electrical connector fitted in the receiving space;
From one wall portion facing the peripheral wall excluding the partial region toward the other wall portion, along the peripheral edge of the mating electrical connector fitted in the receiving space, the other wall portion A first inclined arm constituting an elastic cantilever having an inclined end extending toward the top and having one end fixed to the one wall and the other end being a free end A first rising portion having elasticity, which is disposed between the mating electrical connector fitted in the receiving space and the other wall portion, rising from the free end portion of the first inclined arm portion, and An engaging member formed on the first rising portion, protruding toward the one wall portion, and having a first protruding portion that elastically presses the mating electrical connector fitted in the receiving space;
Electrical connector comprising. The engaging member has a first extending portion that extends from the top portion of the first rising portion toward the other wall portion;
The housing protrudes in an eave shape from the position of the other wall portion higher than the first extension portion in the height direction of the wall portion toward the one wall portion, and faces the first extension portion. The electrical connector according to claim 1, further comprising an eaves portion. The engaging member is connected to the one end portion of the first inclined arm portion, and both in the height direction of the one wall portion and the direction in which the one wall portion and the other wall portion face each other. Having a first overhang projecting in the intersecting direction;
The electrical connector according to claim 1, wherein the one wall portion sandwiches the first overhang portion.   The electrical connector is connected to the one end portion of the first inclined arm portion, and extends outward along a direction in which the one wall portion and the other wall portion face each other. The electrical connector according to claim 1, further comprising a first fixed portion fixed to an attachment target to be attached. From the other wall portion toward the one wall portion, along the peripheral edge of the mating electrical connector fitted into the receiving space, the inclined portion extends toward the top portion of the one wall portion, A second inclined arm portion constituting an elastic cantilever having an end portion fixed to the other wall portion and the other end portion being a free end portion; and the free end of the second inclined arm portion The second rising portion having elasticity and the second rising portion are disposed between the mating electrical connector fitted in the receiving space and the one wall portion, and are formed on the other rising portion. A reverse engagement member having a second protrusion that protrudes toward the wall and elastically presses the mating electrical connector fitted in the receiving space;
The electrical connector according to claim 1, further comprising: A first electrical connector comprising the electrical connector according to claim 1;
The mating electrical connector having an engaged member that holds the engagement state with the first electrical connector together with the engagement member when the first projecting portion of the engagement member in the first electrical connector is hooked. A second electrical connector as
An electrical connector device comprising: The engaging member and the engaged member have conductivity,
The electrical connector device according to claim 6, wherein when the first electrical connector and the second electrical connector are fitted, the engagement member and the engaged member are electrically connected.