JP2009037970A - Socket and connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To retard the generation of an insertion resistance force to a position of deep insertion, and to prevent a plug terminal from having any portion that is rubbed with an overlap of two contact portions of a socket terminal, when a plug is inserted into a socket, even in the case that the number of electrical contact locations between a pair of the plug terminal and the socket terminal is two. <P>SOLUTION: A concave portion 5 in which a plug convex portion 4 is inserted and withdrawn is provided with a socket terminal 8 contacting with a plug terminal 7 provided in the plug convex portion 4. The socket terminal 8 comprises: a first contact portion 16 projected into the concave portion 5 on the inner side of the plug convex portion 4 in its insertion direction; a second contact portion 17 placed at the more front side of the plug convex portion 4 in its insertion direction than the first contact portion 16; and a deformable portion 18 that is deformed by an effect that the plug terminal 7 of the plug convex portion 4 inserted in the concave portion 5 presses the first contact portion 16, and moves the second contact portion 17 in a direction in which the contact portion 17 is brought into contact with the plug terminal 7 of the plug convex portion 4 inserted in the concave portion 5. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a socket and a connector in which a socket having a concave portion into which a plug convex portion is inserted and removed and a socket terminal with which a plug terminal provided on the plug convex portion is contacted is mounted. And the socket and the connector in which contact and non-contact between the plug terminal and the socket terminal are repeatedly performed.

  In order to prevent theft, in-vehicle audio equipment, etc., the control block unit with built-in display, tuner circuit, control circuit, etc. can be taken out from the equipment body fixed in the vehicle cab. Things exist. A connector is provided between the control block unit removable from the vehicle cab and the device main body fixed in the vehicle cab to make an electrical connection. In such a connector, the terminals are connected and disconnected each time the control block unit is attached to and detached from the apparatus main body. As a connector for such a use, for example, a detachable connector described in Patent Document 1 is known.

  The detachable connector is composed of a plug attached to one of the control block part and the device main body and a socket attached to the other. The socket has a socket terminal attached to a concave part into which a convex part of the plug is inserted and removed. The plug is configured by mounting a plug terminal on a convex portion that is inserted into and extracted from the concave portion of the socket. In the conventional detachable connector, the plug terminal is formed in a straight line shape along the insertion / extraction direction, and the socket terminal is provided with one contact portion bent in a mountain shape, and when the plug is fitted to the socket, There is one electrical contact between the socket terminal and the plug terminal.

Japanese Utility Model Publication No. 7-5271

  By the way, in the detachable connector, since the plug terminal and the socket terminal are exposed when the plug is pulled out from the socket, various foreign matters that prevent the electrical contact between the socket and the plug on the surface of these terminals. May adhere on a daily basis.

  Therefore, on the surface of the terminal, if there is only one point of electrical contact (the apex portion of the socket-shaped contact portion of the socket terminal, the specific portion of the plug terminal in contact with the apex portion) that happens to be a foreign object However, even if the plug is fitted in the socket, the electrical connection cannot be achieved.

  As a countermeasure, another additional contact portion bent in a mountain shape is provided on the socket terminal, that is, the contact portion bent in the mountain shape is provided on the socket terminal with an interval in the plug insertion / extraction direction. By providing two places, it can be considered that there are two electrical contact places between the socket terminal and the plug terminal at intervals in the socket-plug insertion / extraction direction.

  However, if the socket terminal is simply provided with two contact portions bent in a mountain shape at intervals in the plug insertion / removal direction, the insertion is shallow when the plug is inserted into the socket. Thus, since the plug terminal (straight) is pressed against the contact portion (mountain shape) of the socket terminal on the near side of the plug insertion direction, insertion resistance is generated, so that the detachable connector is inferior in detachability.

  Further, as the plug is inserted into the socket, the surface of the plug terminal is rubbed by the contact portion on the front side of the socket terminal in the plug insertion direction, and then rubbed by the contact portion on the back side of the socket terminal in the plug insertion direction. Thus, a portion of the plug terminal that is rubbed redundantly by the two contact portions of the socket terminal is generated. Therefore, the plating applied to the surface of the plug terminal is scraped and easily peeled off, which causes rusting.

  Therefore, an object of the present invention is to delay the generation of insertion resistance to a deep insertion position even when the plug is inserted into the socket and the electrical connection between the plug terminal and the socket terminal is two. An object of the present invention is to provide a socket and a connector that can be plugged and are not rubbed against the two contact portions of the socket terminal.

  In order to achieve the above object, the present invention provides a housing having a recess into which a plug convex portion to which a plug terminal is attached is inserted and removed, and the plug terminal of the plug convex portion that is attached to the housing and inserted into the concave portion. A socket terminal that comes into contact with the socket, and the socket terminal protrudes into the concave portion on the back side in the insertion direction of the plug convex portion, and the plug convex portion protrudes from the first contact portion. The second contact portion disposed on the front side in the insertion direction and the plug terminal of the plug convex portion inserted in the concave portion are deformed by pressing the first contact portion, and the second contact portion is deformed by the concave portion. And a deforming portion for moving the plug convex portion inserted into the plug in a direction in contact with the plug terminal.

  A terminal accommodating chamber is formed in the housing, connected to the recess, and the socket terminal is formed in the terminal accommodating chamber, and the second contact portion does not protrude into the recess, and only the first contact portion is the recess. You may mount | wear so that it may protrude in.

  The socket terminal includes a base fixed to the housing, a first bending portion connected to the base and folded back, and a first bending portion connected to the first bending portion and folded back in the opposite direction. A second bending portion, an arm portion formed to be connected to the second bending portion, and a mountain shape portion that is connected to the arm portion and is bent into a mountain shape, wherein the first contact portion is the second bending portion. The second contact portion may be formed in the chevron portion, and the deformation portion may be formed in a connection portion between the first bending portion and the second bending portion.

  The vertical distance X from the first contact portion to the upper vertex of the first bending portion is larger than the vertical distance Y from the first contact portion to the lower vertex of the second bending portion, and the upper end portion of the base portion The vertical position may be lower than the first contact portion, and the vertical distance Z from the first contact portion to the upper end portion of the base portion may be smaller than the distance X.

  The vertical distance X from the first contact portion to the upper vertex of the first bending portion is larger than the vertical distance Y from the first contact portion to the lower vertex of the second bending portion, and the upper end portion of the base portion The vertical position may be above the first contact portion.

  The socket terminals are disposed to face the left and right sides of the housing so as to sandwich the concave portion, and an interval a between the first contact portions of the left and right socket terminals is set to the second contact of the left and right socket terminals. It may be smaller than the interval b between the parts.

  Further, the connector according to the present invention is a connector comprising the socket and a plug having a plug protrusion inserted into and extracted from the recess of the socket and fitted with a plug terminal. The plug terminal is connected to the plug protrusion. The gap c between the left and right plug terminals is larger than the gap a and smaller than the gap b.

  According to the socket and the connector according to the present invention, when the plug is inserted into the socket, even if there are two electrical contact points between the plug terminal and the socket terminal that form a pair, the insertion resistance is generated to a deep position. The plug terminal can be delayed and does not rub against the two contact portions of the socket terminal.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the accompanying drawings.

  FIG. 1 is a perspective view of a connector 3 (detachable connector) including a socket 1 according to the present embodiment and a plug 2 inserted into and removed from the socket 1.

  This connector 3 is provided in an in-vehicle acoustic device comprising a control block part removable from the vehicle cab and a device main body fixed in the vehicle cab, and electrically connects the control block part and the device main body. It is.

  The socket 1 is fixed in a state where it is electrically connected to the board P1 of the device body (fixed side), and the plug 2 is fixed in a state where it is electrically connected to the board P2 of the control block portion (detachable side). ing. Each time the control block portion is attached to or detached from the device main body, the plug 2 of the control block portion is fitted and detached from the socket 1 of the device main body. When the plug 2 is fitted into the socket 1, the control block unit and the device main body are electrically connected.

  The socket 1 includes a housing 6 having a groove-like recess 5 into which a flat plug-like projection 4 formed on the plug 2 is inserted and removed, and a plug projection 4 attached to the housing 6 and inserted into the recess 5. A socket terminal 8 that contacts the provided plug terminal 7 is provided. The plug 2 includes a plug protrusion 4 that is inserted into and extracted from the recess 5 of the socket 1, and a plug terminal 7 that is attached to the plug protrusion 4 and contacts the socket terminal 8.

  FIG. 2 is a plan view of the plug 2, and FIG. 3 is a plan view of the socket 1.

  The plug terminals 7 are arranged at equal intervals on one side surface of the flat plate-like plug convex portion 4 and are arranged at equal intervals on the other side surface of the plug convex portion 4 with a phase shifted from the one side surface. ing. However, the plug terminal 7 may not be shifted in phase between one side surface and the other side surface of the plug convex portion 4, and may be provided only on one side surface of the plug convex portion 4 and not on the other side surface.

  The socket terminals 8 are arranged inside the housing 6 of the socket 1 at equal intervals along one inner surface of the groove-shaped recess 5, and one inner surface on the other inner surface of the recess 5. Are arranged at equal intervals by shifting the phase. These socket terminals 8 are arranged so that the plug terminals 7 properly contact the socket terminals 8 when the plug protrusions 4 are inserted into the recesses 5 of the socket 1.

  Accordingly, when the plug terminal 7 is arranged without shifting the phase between the one side surface and the other side surface of the plug protrusion 4, the socket terminal 8 shifts the phase between one inner side surface of the recess 5 and the other inner side surface. When the plug terminals 7 are provided only on one side of the plug protrusion 4 and not provided on the other side, they are provided only on one inner side of the recess 5 and not on the other inner side.

  4 is a cross-sectional view taken along the line IV-IV in FIG. 2, FIG. 5 is a cross-sectional view taken along the line V-V in FIG. 3, and FIG.

  The plug 2 includes a plug protrusion 4 formed in a plate shape from an insulating material such as a resin, a base 9 that is also formed of an insulating material at the base end of the plug protrusion 4 and is in contact with the substrate P2, and a plug protrusion. And plug terminals 7 respectively mounted on both side surfaces of the portion 4. The plug terminal 7 is fitted in a mounting groove 10 formed on the side surface of the plug protrusion 4 and contacts the socket terminal 8. The plug terminal 7 is formed by being folded back approximately 180 degrees at the tip of the contact section 11. A fixing portion 13 to be inserted into the fixing groove 12 formed at the tip of the contact portion 11, and a tail portion 14 formed by being bent 90 degrees at the base end of the contact portion 11 and soldered to the substrate P <b> 2. The contact portion 11 includes a linear contact portion 11 a formed in parallel between the left and right plug terminals 7 and an inclined contact portion 11 b formed slightly tapered between the left and right plug terminals 7. In 11a, the distance c between the surfaces of the left and right linear contact portions 11a is constant.

  The socket 1 is inserted into a housing 6 formed in a substantially rectangular parallelepiped shape from an insulating material such as resin, a groove-like recess 5 formed in the housing 6 so that the plug protrusion 4 is inserted and removed, and the recess 5. It has a socket terminal 8 mounted in the housing 6 so as to be in contact with the plug terminal 7 of the plug protrusion 4. The socket terminal 8 is mounted in a terminal accommodating chamber 15 formed in the housing 6 connected to the recess 5. The terminal accommodating chamber 15 is disposed on the left and right sides of the recess 5 and communicates with one inner surface of the recess 5 and the other inner surface. The terminal accommodating chamber 15 has a lower portion opened to the bottom surface of the housing 6 and one side portion opened to the recessed portion 5 so as to communicate therewith, and a plurality of terminal accommodating chambers 15 are spaced apart in the longitudinal direction of the recessed portion 5 (the width direction of the socket 1). As shown in FIG. 6, the phase is shifted between one inner surface of the recess 5 and the other inner surface.

  FIG. 7 is a perspective view of the socket terminal 8.

  As shown in FIGS. 4 to 7, the socket terminal 8 includes a first contact portion 16 protruding into the recess 5 on the back side in the insertion direction of the plug protrusion 4, and the plug protrusion more than the first contact portion 16. 4 and the plug terminal 7 of the plug convex part 4 inserted in the recess 5 is deformed by pressing the first contact part 16, and the second contact part 17 is deformed. And a deforming portion 18 that moves the plug convex portion 4 inserted in the concave portion 5 in a direction in contact with the plug terminal 7.

  Specifically, the socket terminal 8 includes a long plate-shaped base portion 19 fixed to the housing 6, a first bending portion 20 that is smoothly connected to the base portion 19, and a first bending portion that is connected to the first bending portion 20. A second bending portion 21 that is smoothly folded back in the opposite direction to the portion 20, an arm portion 22 that is connected to the second bending portion 21, and a mountain-shaped portion that is connected to the arm portion 22 and bent into a mountain shape 23, the first contact portion 16 is formed at the apex in the concave portion 5 of the second bending portion, the second contact portion 17 is formed at the apex of the mountain-shaped portion 23, and the first bending portion 20 and the first bending portion 20 The deformed portion 18 is formed at the connection portion with the two curved portions 21. Further, a tail portion 24 to be soldered to the substrate P1 is formed on the base portion 19 by being bent by 90 degrees.

  The base portion 19 of the socket terminal 8 is formed to have a larger plate width than the portion other than the base portion 19 of the socket terminal 8, and the mounting groove 26 formed in the side wall 25 of the terminal accommodating chamber 15 of the housing 6 shown in FIG. It is inserted. The side walls 25 partition the terminal accommodating chambers 15 in the width direction of the socket 1, and the mounting grooves 26 are formed in the side walls 25 in the depth of the recess 5 along the plug removal direction from the bottom surface of the housing 6. It is formed to the extent. In each mounting groove 26, the base 19 of the socket terminal 8 is inserted (press-fit) from the bottom surface side of the housing 6, and the base 19 is fixed to the housing 6 by arrowheads formed on both sides in the width direction. Almost all parts except the tail part 24 are accommodated in the terminal accommodating chamber 15. In the socket terminal 8 thus mounted on the housing 6, only the first contact portion 16 protrudes into the recess 5 and the other portion (particularly the second contact portion 17) extends into the recess 5 in a natural state (a state in which no external force is applied). Does not protrude.

  As shown in FIGS. 4 and 5, the distance a between the first contact parts 16 of the left and right socket terminals 8 is smaller than the distance b between the second contact parts 17 of the left and right socket terminals 8. The distance c between the left and right plug terminals 7 is larger than the distance a and smaller than the distance b. That is, the interval a <interval c <interval b. Therefore, when the plug convex portion 4 is inserted into the concave portion 5 of the socket 1, the insertion resistance force that the plug 2 receives from the socket terminal 8 is zero until the plug terminal 7 contacts the first contact portion 16 of the socket terminal 8. . The width of the concave portion 5 of the socket 1 is slightly wider than the width of the plug convex portion 4 (interval c) so that the plug convex portion 4 can be inserted.

  FIG. 8 is a side view of the socket terminal 8 (tail part 24 omitted).

  When the first contact portion 16 of the socket terminal 8 is pressed in the arrow direction (rightward in the figure) by the plug terminal 7 of the plug convex portion 4 inserted in the concave portion 5, the first curved portion 20 and the second curved portion. The deformed portion 18 formed in the connection portion with the deformed portion 21 is deformed, and the second contact portion 17 is displaced to the left in the drawing, that is, in a direction to contact the plug terminal 7 of the plug convex portion 4 inserted in the concave portion 5. Specifically, when the first contact portion 16 is pressed in the direction of the arrow by the plug terminal 7, the deformed portion 18 between the first bending portion 20 and the second bending portion 21 is indicated by an imaginary line in FIG. 8. The second curved portion 21, the arm portion 22, and the mountain-shaped portion 23 are rotated together so as to fall to the left in FIG. 8 and accommodated in the terminal accommodating chamber 15. The second contact portion 17 of the chevron portion 23 thus formed protrudes into the recess 5 and comes into contact with the plug terminal 7.

  In order to ensure such deformation of the socket terminal 8, the size relationship of each part of the socket terminal 8 is as follows.

  The distance from the first contact portion 16 to the upper apex 20a of the first bending portion 20 (the end of the first bending portion 20 in the plug removal direction) is defined as X, and the first contact is defined as X. If the vertical distance from the portion 16 to the lower vertex 21a of the second bending portion 21 (the end portion of the second bending portion 21 in the plug insertion direction) is Y, the distance X> the distance Y.

By setting the distance X> the distance Y, the second bending portion 21, the arm portion 22, and the mountain portion 23 are integrally formed by the force in the arrow direction applied to the first contact portion 16 in FIG. The arm length (distance X) of the moment to rotate counterclockwise so as to tilt leftward about the upper vertex 20a of the bending portion 20 is the second bending portion 21, the arm portion 22, and the chevron portion 23. Is integrally longer than the length of the arm (distance Y) of the moment to rotate clockwise so as to tilt rightward about the lower vertex 21a of the second bending portion 21. Accordingly, the second bending portion 21, the arm portion 22, and the mountain portion 23 are integrally tilted to the left, and the second contact portion 17 is pressed against the plug terminal 7.

  On the other hand, when the distance X is shorter than the distance Y, the moment generated by the distance Y becomes larger than the moment generated by the distance X. Therefore, the second bending portion 21, the arm portion 22, and the chevron portion 23 as a whole The second contact portion 17 is separated from the plug terminal 7 and does not come into contact with the second contact portion 17 so as to fall to the right.

  Further, if the vertical position of the upper end portion 19a of the base portion 19 is below the first contact portion 16, and the vertical distance from the first contact portion 16 to the upper end portion 19a of the base portion 19 is Z, the distance Z < The distance is X.

  When the distance Z is equal to or greater than the distance X, the socket terminal 8 bends to the right in FIG. 8 at the position of the upper end portion 19a of the base portion 19 due to the force in the direction of the arrow applied to the first contact portion 16, and the second bending portion 21. This is because the arm portion 22 and the chevron portion 23 may move to the right as a whole, and the second contact portion 17 accommodated in the terminal accommodating chamber 15 may not protrude into the recess 5.

  Here, since the socket terminal 8 is fixed to the housing 6 by the arrowhead of the base 19, the position of the upper end 19 a of the base 19 is defined as the apex position of the upper arrowhead. However, since the base portion 19 of the socket terminal 8 is fitted into the mounting groove 26 of the housing 6 and is considered to be fixed in the plate thickness direction at the fitted portion, the upper end portion of the base portion 19 is based on this concept. 19 a may be defined as a portion where the base 19 is exposed from the mounting groove 26.

  As described above, since the distance X> distance Y and the distance Z <distance X are both established, the moment generated by the distance X becomes the largest, so the second bending portion 21, the arm portion 22, and the mountain portion 23. However, as shown by a virtual line in FIG.

  Unlike the present embodiment shown in FIG. 8, when the vertical position of the upper end portion 19 a of the base portion 19 is set above the first contact portion 16, only the relationship of distance X> distance Y is satisfied. That's fine. If the vertical position of the upper end portion 19 a of the base portion 19 is above the first contact portion 16, the socket terminal 8 is shown at the position of the upper end portion 19 a of the base portion 19 by the force in the arrow direction applied to the first contact portion 16. This is because it does not bend to the right of 8.

  Further, the terminal width (and / or terminal plate thickness) of the upper apex 20a portion (and / or the deformed portion 18 portion) of the first bending portion 20 is made smaller than the other portions of the socket terminal 8, If the portion of the upper vertex 20a (and / or the portion of the deformed portion 18) has the lowest rigidity and is most easily deformed with respect to the force in the direction of the arrow of 8, the above relationship, distance X> distance Y, distance Z < It is not restrained by the distance X. However, a disadvantage is that the socket terminal 8 has a portion having a small width or thickness, and therefore, unexpected deformation is likely to occur in the manufacturing process.

  The operation of this embodiment will be described.

  9 is a side sectional view showing a state in the middle of inserting the plug convex portion 4 into the concave portion 5 of the socket 1, and FIG. 10 is a side sectional view showing a state where the insertion is further deepened from FIG. 9 (insertion is not completed). It is.

  When the plug convex portion 4 is inserted into the concave portion 5 of the socket 1, the distance a <the distance c <the distance b in FIG. 4 and FIG. 5 and the first contact portion 16 protrudes into the concave portion 5. Since the second contact portion 17 does not protrude into the recess 5, the plug 2 receives zero insertion resistance from the socket terminal 8 until the plug terminal 7 contacts the first contact portion 16 of the socket terminal 8. In this state, it smoothly enters the middle of the insertion depth.

  After the plug terminal 7 comes into contact with the first contact portion 16 of the socket terminal 8, when the insertion of the plug convex portion 4 proceeds, the first contact portion 16 is moved to the right of FIG. 9 by the plug terminal 7 (outside direction of the housing 6). The first contact portion 16 is displaced outward (in the direction of the arrow in FIG. 8). Then, following the displacement of the first contact portion 16, the second contact portion 17 that has been accommodated in the terminal accommodating chamber 15 without protruding into the recess 5 until then is opposite to the first contact portion 16. 9 is displaced to the left in FIG. 9 (inward direction of the housing 6), protrudes into the recess 5, and is pressed against the plug terminal 7. As a result, as shown in FIG. 10, the first contact portion 16 and the second contact portion 17 of the socket terminal 8 are both in contact with the plug terminal 7.

  Thereafter, when the insertion of the plug protrusion 4 further proceeds, the first contact portion 16 slides on the surface of the plug terminal 7 and the second contact portion 17 slides on the surface of the plug terminal 7. Here, since the first contact portion 16 and the second contact portion 17 are separated from each other by the arm portion 22 having a predetermined length, the first contact portion 16 slidably contacts the surface of the plug terminal 7 (the first slide portion 16X). And the region 17X (second sliding contact location) where the second contact portion 17 is in sliding contact with the surface of the plug terminal 7 do not overlap. That is, in FIG. 9, when the distance A from the contact point when the second contact portion 17 contacts the plug terminal 7 for the first time to the lower end portion of the plug protrusion 4, the plug protrusion 4 hits the bottom surface of the recess 5. Assuming that the length of the arm portion 22 is set to be longer than the distance B from the first contact portion 16 to the bottom surface of the recess 5.

  According to this embodiment, when the plug 2 is fitted into the socket 1, the electrical contacts between the plug terminal 7 and the socket terminal 8 that form a pair are the first contact portion 16 and the second contact portion 17. Therefore, even if an insulating foreign matter adheres to the surfaces of the terminals 7 and 8, electrical connection is easily ensured and the reliability of electrical contact is improved as compared with the conventional example having one electrical contact.

  When the plug convex portion 4 is inserted into the concave portion 5 of the socket 1, the plug terminal 7 is in contact with the first contact portion 16 on the back side in the plug insertion direction until the second contact portion 17 on the near side in the plug insertion direction. Do not touch. Therefore, the plug insertion force is generated up to a relatively deep insertion depth at which the plug terminal 7 reaches the first contact portion 16, that is, the plug convex portion 4 is inserted into the concave portion 5 of the socket 1 in the middle of the insertion completion depth. Can be delayed until Accordingly, the plug insertion force is not generated until the middle of the insertion completion depth, and the operability of inserting the plug 2 into the socket 1 is improved. For the same reason, the operability of removing the plug 2 from the socket 1 is also improved.

  The manner in which the plug terminal 7 contacts the first contact portion 16 will be described in detail. First, the inclined contact portion 11b (see FIG. 4) of the plug terminal 7 contacts the first contact portion 16, and then the linear contact portion. 11a contacts. Thus, the first contact portion 16 is first gradually displaced toward the terminal accommodating chamber 15 by the inclined contact portion 11b and finally pushed into the terminal accommodating chamber 15 by the linear contact portion 11a. As a result, the second contact portion 17 is initially pressed against the plug terminal 7 with a relatively weak force generated by the inclined contact portion 11b pressing the first contact portion 16, and then the linear contact portion 11a is first contacted. It is pressed against the plug terminal 7 with a relatively strong force generated by pressing the portion 16. Therefore, the plug insertion force gradually increases according to the insertion depth, and the operability of inserting the plug 2 into the socket 1 is improved. On the other hand, when the plug 2 is removed from the socket 1, the plug removal force gradually decreases for the same reason, so that the removal operability of the plug 2 is also improved.

  When the plug convex portion 4 is inserted into the concave portion 5 of the socket 1 to the insertion completion depth, the first contact portion 16 slidably contacts the surface of the plug terminal 7 and the second contact portion 17 is the plug terminal 7. It does not overlap with the second slidable contact portion 17X slidably contacting the surface. That is, the plug terminal 7 finally comes into contact with the socket terminal 8 at two points of the first contact portion 16 and the second contact portion 17, but the plug contact 7 has the first contact portion 16. And the second contact portion 17 overlaps and does not rub. Therefore, even if it is a two-point contact, the plating applied to the surface of the plug terminal 7 is difficult to be scraped and peeled off, and the occurrence of rust is suppressed. Therefore, the same contact reliability as in the case of one-point contact can be maintained.

  The present invention is not limited to the above embodiment.

  For example, the second contact portion 17 may protrude into the recess 5 as long as it is smaller than the protrusion amount of the first contact portion 16 into the recess 5.

It is a perspective view of the connector (detachable connector) which consists of the socket which concerns on this embodiment, and the plug inserted in this socket. It is a top view of a plug. It is a top view of a socket. It is the IV-IV sectional view taken on the line of FIG. It is the VV sectional view taken on the line of FIG. It is a perspective sectional view of a socket. It is a perspective view of a socket terminal. It is a side view of a socket terminal (a tail part is omitted). It is a sectional side view which shows the mode in the middle of inserting a plug convex part in the recessed part of a socket. It is a sectional side view which shows a mode that insertion was further deepened from FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Socket 2 Plug 3 Connector 4 Plug convex part 5 Concave part 6 Housing 7 Plug terminal 8 Socket terminal 15 Terminal accommodating chamber 16 1st contact part 18 Deformation part 17 2nd contact part 19 Base part 19a Upper end part 20 1st curved part 20a Upper vertex 21 Second bending portion 21a Lower vertex 22 Arm portion 23 Mountain portion X Vertical distance from first contact portion 16 to upper vertex 20a of first bending portion 20 Y Lower portion of second bending portion 21 from first contact portion 16 Vertical distance to the apex 21a Z Vertical distance from the first contact portion 16 to the upper end portion 19a of the base 19 a Distance between the first contact portions 16 of the left and right socket terminals 8 b Second contact of the left and right socket terminals 8 Interval between parts 17 c Interval between left and right plug terminals 7

Claims (7)

A housing having a concave portion into which a plug convex portion to which a plug terminal is attached is inserted and removed;
A socket terminal attached to the housing and in contact with the plug terminal of the plug protrusion inserted into the recess;
The socket terminal is
A first contact portion protruding into the recess at the back side in the insertion direction of the plug protrusion,
A second contact portion disposed on the front side in the insertion direction of the plug convex portion with respect to the first contact portion;
The plug terminal of the plug convex portion inserted into the concave portion is deformed by pressing the first contact portion, and the second contact portion contacts the plug terminal of the plug convex portion inserted into the concave portion. A socket having a deformable portion that moves in a direction to be moved. A terminal accommodating chamber is formed in the housing, connected to the recess,
2. The socket according to claim 1, wherein the socket terminal is mounted in the terminal accommodating chamber so that only the first contact portion protrudes into the recess without the second contact portion protruding into the recess. The socket terminal includes a base fixed to the housing, a first curved portion connected to the base and folded back, and a first curved portion connected to the first curved portion and folded in a direction opposite to the first curved portion. 2 bending portions, an arm portion formed to be connected to the second bending portion, and a mountain shape portion that is connected to the arm portion and bent into a mountain shape,
The first contact portion is formed on the second bending portion,
The second contact portion is formed on the chevron;
The socket according to claim 1, wherein the deforming portion is formed at a connection portion between the first bending portion and the second bending portion. The vertical distance X from the first contact portion to the upper vertex of the first curved portion is larger than the vertical distance Y from the first contact portion to the lower vertex of the second curved portion,
The vertical position of the upper end portion of the base is below the first contact portion,
The socket according to claim 3, wherein a vertical distance Z from the first contact portion to an upper end portion of the base portion is smaller than the distance X. The vertical distance X from the first contact portion to the upper vertex of the first curved portion is larger than the vertical distance Y from the first contact portion to the lower vertex of the second curved portion,
The socket according to claim 3, wherein a vertical position of an upper end portion of the base portion is above the first contact portion. The socket terminals are arranged opposite to each other so as to sandwich the recesses on the left and right sides of the housing;
The socket according to claim 1, wherein an interval a between the first contact portions of the left and right socket terminals is smaller than an interval b between the second contact portions of the left and right socket terminals. A socket according to claim 6;
A connector comprising a plug having a plug convex part inserted into and extracted from the concave part of the socket and fitted with a plug terminal,
The plug terminals are disposed on the left and right of the plug protrusion,
The connector characterized in that an interval c between the left and right plug terminals is larger than the interval a and smaller than the interval b.

Images