JP3984244B2 - Socket contact, pin contact and connector using them - Google Patents

Description

  The present invention belongs to the technical field of socket contacts, pin contacts, and connectors using them for electrically connecting the substrates to each other.

  In recent personal computers, mobile phones, and many home electronic devices, many large-scale integrated circuits (LSIs) and small electronic components are mounted with high density in order to reduce size, weight, functionality, and digitization. The number of circuits wired to such a board increases, and as the number of wiring circuits increases, board-to-board connectors that connect boards to each other have a high density of connection contacts. What is implemented in is needed.

  Conventional board-to-board connectors that have been used in the past are a socket connector in which a plurality of socket contacts made of metal pieces are arranged at predetermined intervals via a plurality of insulating walls, and a plurality of pin contacts made of metal pieces as well. Consists of pin connectors arranged at predetermined intervals through a plurality of insulating walls, and the socket connector and the pin connector are fitted to each other so that each socket contact and each pin contact are connected in a one-to-one relationship. is there.

  In general, a board-to-board connector uses an insulating material such as plastic to produce an insulator having a plurality of grooves partitioned by a plurality of insulating walls by molding, and the contact processed into a predetermined shape is used as the groove of the insulator. It is manufactured in the process of press-fitting. In order to increase the mounting density of the board-to-board connector manufactured in this way, the socket contacts and the pin contacts are arranged in two rows, and the thickness of the metal piece of the socket contact and the pin contact and the thickness of the insulating wall are made as thin as possible. (See, for example, Patent Document 1).

The pitch of the socket contact and the pin contact (the distance between the contacts, that is, the length of the metal piece of the socket contact and the pin contact plus the thickness of the insulator) is about 1 mm. A high-density board-to-board connector with a thickness of 0.2 mm and a pitch of 0.4 mm has been put into practical use. In the case of a pitch of 0.4 mm, if the arrangement length is 40 mm, 100 contacts can be arranged in one row, and the connector has a total of 200 contacts because it has a two-row structure.
Japanese Patent Laid-Open No. 10-335000 (FIGS. 3 and 8)

  In the conventional board-to-board connector described above, the thickness of the insulating wall of the insulator to be manufactured cannot be made thinner than the limit of restrictions on the molding material and molding process, and the contacts can be stably fitted without any trouble. For this reason, since the thickness cannot be reduced below the necessary thickness, the pitch of the contacts arranged in the insulator is restricted, and there is a problem that it is difficult to achieve a higher density than in the prior art.

  The problem to be solved by the present invention is to solve the problem of the thickness of the insulating wall, which has been a limitation on the mounting density in the conventional board-to-board connector, and to use the same mold material and molding method as the conventional one. It is an object of the present invention to provide a socket contact, a pin contact, and a connector using them, which electrically connect the substrate to each other, which can achieve a mounting density of about twice.

  In the first configuration of the present invention, an insulating layer is formed on each of the first surface side and the second surface side of the belt-like elastic metal plate, and the first surface side and the second surface side are not electrically connected to the insulating layers. The metal layer is separately formed, and one leg of the member in which the band-shaped one end side has a longitudinal cut and two legs are formed is on the first surface side, and the other leg is on the second surface side. The first surface and the second terminal are connected to the circuit board, and the portions that are separated from the notch are first folded back with the first surface in the middle. A bent portion is formed, and the other end side of the belt-like shape forms a second folded bent portion with the first surface inside and the second surface outside, and the first folded bent portion and the second folded bent portion are spaced from each other. The surfaces facing each other side by side form a first contact surface and a second contact surface A socket contact.

  When the second configuration of the present invention is inserted between the first folded portion and the second folded portion of the socket contact of the first configuration, the first contact portion is sandwiched between both bent portions, A pin contact characterized in that a first conductor that contacts the contact surface of the folded portion and a second conductor that contacts the contact surface of the second folded portion are held on both sides of one insulator. is there.

  According to a third configuration of the present invention, an insulating layer is formed on each of the first surface side and the second surface side of the belt-shaped elastic metal plate, and the first surface side and the second surface side are not electrically connected to those insulating layers. The metal layer is separately formed, and one leg of the member in which the band-shaped one end side has a longitudinal cut and two legs are formed is on the first surface side, and the other leg is on the second surface side. The first and second terminals connected to the circuit board are the outer surfaces of the bent portions, and the portions away from the notches are folded back so that the first surface is on the way, Subsequently, the pin contact is characterized in that the second surface is folded outward to form a double folded bent portion, and both side surfaces thereof form a first contact surface and a second contact surface.

  According to a fourth configuration of the present invention, in the second configuration or the third configuration, the pin contact has a locking concave portion or a locking convex portion for retaining when inserted into the socket contact. It is.

  A fifth configuration of the present invention is a socket connector characterized in that a plurality of socket contacts of the first configuration are held in an insulator.

  A sixth configuration of the present invention is a pin connector characterized in that a plurality of pin contacts of the second configuration, the third configuration, or the fourth configuration are held in an insulator.

  Since the socket contact, the pin contact, and the connector using them according to the present invention have the above-described structure, two circuits are connected by fitting one socket contact and one pin contact. Therefore, it is possible to achieve about twice the mounting density of the conventional mold material and molding process and the insulation wall thickness of the insulator produced by them and the conventional press punching contact. effective.

  The socket contact, the pin contact and the connector using them of the present invention can process the band-like elastic metal plate, the dimensions (width and thickness) of the conductor and the insulator used in these, and the folding-back dimension of the band-like elastic metal plate. Minimizing these dimensions is best because minimizing as much as possible allows higher density.

FIG. 1 is a structural view showing an embodiment of the socket contact of the present invention.
(A) of FIG. 1 is a figure which shows the 1st surface of the strip | belt-shaped elastic metal plate 1a, (b) is a 2nd surface, (c) is a side surface, (d) is a figure which shows the expansion of the A section of (c). is there. As shown in (d), the insulating layer 2a and the insulating layer 2b are formed on the first surface and the second surface of the belt-shaped elastic metal plate 1a, and the metal plating layer 3a and the metal plating layer 3b are formed on the upper surface of each insulating layer. Is given. Furthermore, the belt-like elastic metal plate 1a is provided with a foot 4a and a foot 4b with a cut in the longitudinal direction on one end side (downward in FIGS. 1A and 1B), and a metal plating layer on the first surface. 3a is applied to the upper surface of the foot 4a as shown in FIG. 1A, and the metal plating layer 3b on the second surface is applied to a part of the upper surface of the foot 4b as shown in FIG.
In this embodiment, a metal plating layer is used, but the present invention is not limited to this, and a thin film formed by vapor deposition or chemical treatment or a metal layer formed by coating may be used.

  (E) of FIG. 1 is a figure which shows the side surface of what each part of the strip | belt-shaped elastic metal plate 1a bent and was mounted | worn to the board | substrate 20a. The leg 4a of the belt-like elastic metal plate 1a shown in (a) is bent so that the metal plating layer 3a is on the outer side, and becomes the first terminal 6a that comes into contact with the substrate 20a as shown in (e). The legs 4b of the elastic metal plate 1a are bent so that the metal plating layer 3b is on the outside, and become the second terminals 6b in contact with the substrate 20a as shown in FIG.

  Further, as shown in FIG. 1E, the belt-like elastic metal plate 1a is folded back by the first folded portion 5a and the second folded portion 5b, and the first metal plating layer 3a on the first surface is first folded. The contact surface 7a and the second contact surface 7b of the metal plating layer 3b on the second surface face each other with a space therebetween.

  As described above, the belt-like elastic metal plate 1a is folded as shown in FIG. 1 (e), and the electroplating layers of the two legs on one end side form the first terminal 6a and the second terminal 6b, The metal plating layer 3a on the first surface forms the first contact surface 7a, and the metal plating layer 3b on the second surface on the other end side forms the second contact surface 7b to form a socket contact.

FIG. 2 is a structural view showing a first embodiment of the pin contact of the present invention. FIG. 2A is a front view, and FIG. 2B is a view as viewed in the direction of arrow B in FIG.
As shown in FIG. 2A, there are two metal conductors, a first conductor 8a and a second conductor 8b, which are bent in an inverted L shape with an insulator 9 in between, and the bottom of each L-shape is the first side. The first terminal 6c and the second terminal 6d are in contact with the substrate 20b. The first conductor 8a is provided with a locking projection 10 so that it can be locked when fitted to the socket contact. Further, as shown in (b), the side surfaces of the first conductor 8a and the second conductor 8b have a width d, which is the same as the width d of the strip-shaped elastic metal plate 1a shown in FIG. .

  With the configuration and structure described above, the pin contact of the first embodiment that fits into the socket contact described above is formed.

FIG. 3 is a structural view showing a second embodiment of the pin contact of the present invention.
3 is similar to FIG. 1 described above, FIG. 3A shows the first surface of the band-shaped elastic metal plate 1b, FIG. 3B shows the second surface, FIG. 3C shows the side surface, and FIG. FIG. 4 is an enlarged view of a portion A in (c). As shown in (d), the insulating layer 2c and the insulating layer 2d are formed on the first surface and the second surface of the belt-shaped elastic metal plate 1b, and the metal plating layer 3c and the metal plating layer 3d are formed on the upper surface of each insulating layer. It has been subjected. Further, the belt-like elastic metal plate 1b is provided with a foot 4c and a foot 4d having a cut in the longitudinal direction at one end side (upward in FIGS. 3A and 3B), and a metal plating layer on the first surface. 3c is applied to the upper surface of the foot 4d as shown in FIG. 1 (a), and the metal plating layer 3d on the second surface is applied to the upper surface of the foot 4c as shown in FIG. 1 (b).

  (E) of FIG. 3 is a figure which shows the side surface of what each part of the strip | belt-shaped elastic metal plate 1b bent and was mounted | worn with the board | substrate 20c. The leg 4c of the belt-like elastic metal plate 1b shown in (a) is bent so that the metal plating layer 3d is on the outside, and becomes the first terminal 6e that comes into contact with the substrate 20c as shown in (e). The legs 4d of the elastic metal plate 1b are bent so that the metal plating layer 3c is on the outside, and become the second terminals 6f that come into contact with the substrate 20c as shown in FIG.

  Further, as shown in FIG. 3E, the belt-like elastic metal plate 1b is folded at the double folded portion 11, and the metal plating layer 3d and the metal plating layer 3c on the side surfaces thereof are respectively connected to the first contact surface 7c. And the second contact surface 7d.

  As described above, the belt-like elastic metal plate 1b is folded as shown in FIG. 3 so that the two legs on one end side form the first terminal 6e and the second terminal 6f, and the central portion and the other end side make the first contact. The surface 7c and the second contact surface 7d are formed to serve as pin contacts.

FIG. 4 is a view showing a state in which the socket contact of the present invention and the pin contact of the first embodiment are fitted.
FIG. 4 shows a state in which the pin contact 13a is inserted into the socket contact 12 from above and is engaged with each other, and the first contact surface 7a that is electrically connected to the first terminal 6a of the socket contact 12 by the metal plating layer is the pin contact. The first terminal 6a of the socket contact 12 and the first terminal 6c of the pin contact 13a are electrically connected by making contact with the first conductor 8a that is conductive with the first terminal 6c of 13a. Here, the first conductor 8a has a convex shape, and the first contact surface has a concave shape corresponding to the convex shape, and has a retaining effect when inserted.

Similarly, the second terminal 6b of the socket contact 12 and the second terminal 6d of the pin contact 13a are electrically connected, and two circuits are electrically connected.
Thus, two circuits can be electrically connected by fitting one socket contact and one pin contact.

FIG. 5 is a view showing a state in which the socket contact of the present invention and the pin contact of the second embodiment are fitted.
FIG. 5 shows a state in which the pin contact 13b is inserted into the socket contact 12 from above and is engaged with each other, as in FIG. 4, and the first contact surfaces (7a and 7c) of the socket contact 12 and the pin contact 13b, respectively. ) And the respective second contact surfaces (7b and 7d) are in contact with each other, whereby the first terminal 6a of the socket contact 12 and the first terminal 6e of the pin contact 13b are also connected to the socket contact 12. The second terminal 6b and the second terminal 6f of the pin contact 13b are connected.

  As described above, as in the case of the pin contact of the first embodiment of FIG. 4, two circuits are electrically connected by fitting one set of the socket contact of FIG. 1 (e) and the pin contact of FIG. 3 (e). A connection is made.

FIG. 6 is a view showing a socket connector and a pin connector in which a plurality of socket contacts and pin contacts of the present invention are held in an insulator.
6A is a cross-sectional view in which two socket contacts 12 (socket contact 12a and socket contact 12b) shown in FIG. 1E are press-fitted into the groove of the insulator 21a as a pair of socket contacts. is there. Since one socket contact has two circuits, one set of two socket contacts shown in (a) has four circuits.

  FIG. 6B is a view in which a plurality of sets of socket contacts are press-fitted in a plurality of grooves partitioned by an insulating wall 22a having a thickness t in the insulator 21a. is there. In this way, a plurality of sets of socket contacts are press-fitted and arranged in a plurality of grooves partitioned by a plurality of insulating walls, thereby forming a socket connector having a plurality of circuits, where the total number of circuits is N. It becomes a socket connector having (N × 4).

  Similarly, FIGS. 6C and 6E show a pair of pin contacts (pin contact 13c and pin contact 13d in (c), pin contact 13e and pin contact 13f in (e)), respectively. It is sectional drawing press-fit in the groove | channel of the insulator 21b and the insulator 21c. As in the case of the receptacle contact in (a), since one pin contact has two circuits, the set of two socket contacts shown in (c) and (e) has four circuits.

  FIGS. 6D and 6F show a plurality of sets of pin contacts that are press-fitted into a plurality of grooves partitioned by an insulating wall 22b and an insulating wall 22c having a thickness t. It is a C arrow view and D arrow view in FIG. In this way, a plurality of sets of pin contacts are press-fitted and arranged in a plurality of grooves partitioned by a plurality of insulating walls, thereby forming a pin connector having a plurality of circuits, where the total number of circuits is N. This is a pin connector having (N × 4).

  The thickness of each contact indicated by d in FIGS. 6B, 6D, and 6F is the same as the band-like elastic metal plate, the first conductor, and the second in FIGS. The contact width (p in FIGS. 6B, 6D, and 6F), which is the width d of the conductor and the distance between the contacts of the receptacle connector and the pin connector, is the width of the contact and the thickness of the insulating wall. This is the sum of t.

  By setting the width d of each contact and the thickness t of each insulating wall to 0.2 mm, the contact pitch p becomes 0.4 mm, the total number of circuits is (N × 4) circuits, and the contact pitch is 0.4 mm. A connector can be realized. Similarly, in the conventional inter-board connector, if the thickness of the metal piece and the thickness of the insulating wall are 0.2 mm, the total number of circuits is (N × 2) circuits. The number of circuits is twice that of the prior art, and the mounting density is doubled.

  In the description of each embodiment described above, each connector is assumed to have two contacts arranged as one set. However, the number of contacts is not limited to two, and n contacts are arranged as one set depending on the application. May be.

FIG. 7 is a structural view showing an embodiment of the hermaphroditic contact connector of the present invention.
7 is similar to FIG. 1 described above, FIG. 7A shows the first surface of the belt-like elastic metal plate 1c, FIG. 7B shows the second surface, FIG. 7C shows the side surface, and FIG. FIG. 4 is an enlarged view of a portion A in (c). As shown in (d), the first and second surfaces of the belt-like elastic metal plate 1c are provided with an insulating layer 2e and an insulating layer 2f, and a metal plating layer 3e and a metal plating layer 3f are provided on the upper surface of each insulating layer. It has been subjected. Further, the belt-like elastic metal plate 1c is provided with a foot 4e and a foot 4f with a cut in the longitudinal direction on one end side (downward in FIGS. 7A and 7B), and a metal plating layer on the first surface. 3e is applied to the upper surface of the foot 4e as shown in FIG. 1 (a), and the metal plating layer 3f on the second surface is applied to the upper surface of the foot 4f as shown in FIG. 1 (b).

  (E) of FIG. 7 is a figure which shows the side surface of what each part of the strip | belt-shaped elastic metal plate 1c bent and was mounted | worn on the board | substrate 20d. The leg 4e of the band-shaped elastic metal plate 1c shown in (a) is bent so that the metal plating layer 3e is on the outside, and becomes the first terminal 6g that contacts the substrate 20d as shown in (e). The legs 4f of the elastic metal plate 1c are bent so that the metal plating layer 3f is on the outside, and become the second terminals 6h that come into contact with the substrate 20d as shown in FIG.

As shown in FIG. 7 (e), the belt-shaped elastic metal plate 1c is folded back by the first folded portion 5c and the second folded portion 5d, and the first folded portion 5c and the second folded portion. spacing portion B between is shaped to be larger than the width C of the first return bend 5c. In addition, the latching convex part 10a is provided in the 1st folding | returning bending part 5c.

  As described above, the belt-like elastic metal plate 1c is folded and formed as shown in FIG. 7E, and the first terminal 6g, the second terminal 6h, the first folded portion 5c, and the second folded portion. A hermaphroditic contact provided with 5d and the locking projection 10a is formed.

FIG. 8 is a view showing a state in which two hermaphroditic contacts of the present invention are fitted together, (a) before fitting and (b) after fitting.
The contact 14a shown in the lower diagram of FIG. 8A is exactly the same as FIG. 7E, and the contact 14b shown in the upper diagram of FIG. 8A has the same shape as the contact 14a of the lower diagram rotated 180 degrees. The contact 14a and the contact 14b are arranged as shown in (a), and the two contacts are inserted as shown by arrows, so that a fitting state shown in (b) is obtained.

  As shown in FIG. 8B, in the state where the contact 14a and the contact 14b are fitted, the first contact surface 7e electrically connected to the first terminal 6g of the contact 14a by the metal plating layer is connected. In contact with the metal plating layer electrically connected to the second terminal 6j of the contact 14b in the vicinity of the stop projection 10a, the first terminal 6g of the contact 14a and the second terminal 6j of the contact 14b are electrically connected. The Similarly, the second contact surface 7f of the contact 14a comes into contact with the metal plating layer electrically connected to the first terminal 6i of the contact 14b in the vicinity of the locking projection 10b of the contact 14b. The second terminal 6h and the first terminal 6i of the contact 14b are electrically connected.

  As shown in FIG. 8B, the two contacts are electrically connected by fitting the contacts 14a and 14b having the same shape.

  FIG. 9 is a structural view showing an embodiment of an insulator to which the hermaphroditic contact of the present invention is attached. 9A is a plan view of the plug insulator 25 forming the plug-type connector, FIG. 9B is a sectional view taken along the line AA of FIG. 9A, and FIG. 9C is a contact 14a and a contact 14b in FIG. It is a figure which shows the state which inserted. Similarly, FIG. 9D is a plan view of the receptacle insulator 26 forming the receptacle connector, FIG. 9E is a sectional view taken along the line BB of FIG. 9D, and FIG. It is a figure which shows the state which engage | inserted the contact 14d.

  As shown in FIG. 9A, the plug insulator 25 is provided with a plurality of insulating walls on both sides of the spine 24a through the spine 24a. Each insulating wall is provided with a columnar protrusion 23a on the left insulating wall 22d of (a) and (b), and a columnar protrusion 23a is similarly provided on each right insulating wall.

  The receptacle insulator 26 shown in FIG. 9D is also provided with a plurality of insulating walls on both sides of the spine 24b through the spine 24b, and each of the insulating walls is insulated on the right side of (d) and (e). A columnar protrusion 23b is provided on the wall 22f, and the left side has a similar structure.

  FIG. 9C shows a state in which the contact 14a is incorporated between the insulating wall 22d and the insulating wall 22e of FIG. 9A, and the contact 14b is also incorporated between the right insulating wall. In addition, since (c) is the figure seen from AA of (a) like (b), the insulating wall 22e is not shown in (c). Further, the contact 14b on the right side of (c) is obtained by inverting the front and back of the contact 14a and has exactly the same shape as the contact 14a.

  FIG. 9F is a view showing a state in which the contact 14c and the contact 14d are incorporated in the receptacle insulator 26 between the insulating walls in the same manner as in FIG. 9C.

FIG. 10 is a cross-sectional view showing details of the contact mounting portion of the insulator of the hermaphroditic contact connector according to the present invention and a situation where the plug connector and the receptacle connector are fitted.
FIG. 10B is the same view as FIG. 9C, in which the contact 14a is incorporated between the insulating wall 22d and the insulating wall 22e, and similarly the contact 14b is incorporated between the insulating walls. It is. (C) of FIG. 10 is an AA sectional view of (b), and (d) is a BB sectional view of (b).

  As shown in FIGS. 10B, 10C, and 10D, the columnar protrusion 23a is provided in a protruding shape on the insulating wall 22d, and the first folded portion 5c of the contact 14a is formed as shown in FIG. The columnar protrusion 23a is pushed into the U-shaped part to be made (inverted U-shaped in the figure) so that the tip of the columnar protrusion 23a is added. The width of the U-shaped portion of the contact 14a is narrower than the width of the columnar protrusion 23a, and the contact 14a is formed of a belt-shaped elastic metal plate and has elasticity, so that the contact 14a has the tip of the columnar protrusion 23a. When pushed in such a way, the contact 14a is fixed and held on the insulating wall 22d by its elastic force.

  As shown in FIG. 10D, the foot 4e of the contact 14a is inserted into the gap between the columnar protrusion 23a and the insulating wall 22e, and the foot 4f is a gap having a width of the foot 4e between the insulating wall 22d and the insulating wall 22e. Will be inserted.

As described above, each contact is fixed and held on the insulator by sandwiching the U-shaped portion between the columnar protrusions provided on the insulating wall. Each contact is fixed only to this U-shaped part and the other part is not fixed, and it can move freely. When the contacts are engaged with each other due to the elastic force of each contact, each contact comes into contact with the contact surface. It has the effect of applying pressure.

  FIG. 10A is a diagram obtained by rotating 180 degrees and inverting FIG. 9F, in which contacts 14c and contacts 14d are attached to the receptacle insulator 26. FIG. By moving (a) and (b) in FIG. 10 as shown by arrows, the contact 14a and the contact 14d are fitted as shown in FIG. 8 (b), and the contact 14b and the contact 14c are similarly fitted. Thus, an electrical connection is made.

  As shown in FIGS. 9 and 10, male and female contacts that can make two-circuit electrical connection by one piece are incorporated between the insulating walls provided on the plug insulator 25 and the receptacle insulator 26, respectively. Thus, it is possible to form a plug connector and a receptacle connector that have twice the number of circuits as compared with the conventional connector and that fit into each other. 9 (c) and 9 (f) show the contacts arranged in the opposite direction, the direction in which the contacts are arranged is not limited to the opposite direction, and the columnar shape provided on the insulating wall is not particularly limited. There is no problem even if the positions of the protrusions are changed and arranged in the same direction. Further, in the above description, each connector is assumed to have two contacts arranged symmetrically as one set, but is not limited to two, and n contacts are arranged as one set depending on the application. May be.

  In the second embodiment shown above, the contact pitch p is set to 0. 0 by setting the thickness d of each contact and the thickness of each insulating wall to 0.2 mm, respectively, as in the case of the first embodiment. The total number of circuits is (N × 4) at 4 mm, and a connector having twice the number of circuits as compared to the conventional circuit and having twice the mounting density is possible.

It is a structural diagram showing an embodiment of a socket contact of the present invention. 1 is a structural diagram illustrating a first embodiment of a pin contact according to the present invention. It is a structural diagram showing a second embodiment of the pin contact of the present invention. It is a figure which shows the state which the socket contact of this invention and the pin contact of the 1st Example were fitted. It is a figure which shows the state which the socket contact of this invention and the pin contact of the 2nd Example were fitted. It is a figure which shows the socket connector and pin connector which hold | maintained the multiple socket contact and pin contact of this invention on the insulator. It is a structural diagram showing an embodiment of a male and female isomorphic contact of the present invention. It is the figure which showed the state which the two hermaphroditic contacts of this invention fit. It is a structural diagram showing an embodiment of an insulator to which a hermaphroditic contact of the present invention is attached. It is sectional drawing which shows the condition of the contact attachment part of the insulator of the hermaphroditic contact connector of this invention, and the condition where a plug connector and a receptacle connector fit.

Explanation of symbols

1a, 1b, 1c Strip-like elastic metal plates 2a, 2b, 2c, 2d, 2e, 2f Insulating layers 3a, 3b, 3c, 3d, 3e, 3f Metal plating layers 4a, 4b, 4c, 4d, 4e, 4f Feet 5a, 5c 1st bending part 5b, 5d 2nd folding part 6a, 6c, 6e, 4g, 6i 1st terminal 6b, 6d, 6f, 6h, 6j 2nd terminal 7a, 7c, 7e 1st contact surface 7b , 7d, 7f Second contact surface 8a First conductor 8b Second conductor 9 Insulator 10, 10a, 10b Locking convex portion 11 Double folded portion 12, 12a, 12b Socket contact 13a, 13b, 13c, 13d, 13e , 13f Pin contact 14a, 14b, 14c, 14d Contact 20a, 20b, 20c, 20d, 20e Substrate 21a, 21b, 21c Insulator 22a, 22 b, 22c, 22d, 22e, 22f Insulating walls 23a, 23b Columnar protrusions 24a, 24b Spine 25 Plug insulator 26 Receptacle insulator

Claims (6)

  Insulating layers are respectively formed on the first surface side and the second surface side of the belt-shaped elastic metal plate, and a metal layer is separately formed on the insulating layers so that the first surface side and the second surface side do not conduct, One leg of the member having a longitudinal cut at one end side of the belt and having two legs formed is bent so that one leg opens to the first face side and the other leg opens to the second face side. The outer surface of the bent portion becomes the first terminal and the second terminal connected to the circuit board, and the portion away from the notch forms the first folded bent portion with the first surface on the way, The end side is formed with a second folded portion where the first surface is inside and the second surface is outside, and the first and second folded portions are opposed to each other with a gap therebetween. A socket contact having a first contact surface and a second contact surface.   When inserted between the first folded portion and the second folded portion of the socket contact according to claim 1, the second contact portion is sandwiched between both bent portions and contacts the contact surface of the first folded portion. A pin contact characterized in that one conductor and a second conductor that contacts the contact surface of the second folded portion are held on both sides of one insulator.   Insulating layers are respectively formed on the first surface side and the second surface side of the belt-shaped elastic metal plate, and a metal layer is separately formed on the insulating layers so that the first surface side and the second surface side do not conduct, One leg of the member having a longitudinal cut at one end side of the belt and having two legs formed is bent so that one leg opens to the first face side and the other leg opens to the second face side. The outer surface of the bent portion becomes the first terminal and the second terminal connected to the circuit board, and the portion away from the notch is folded back so that the first surface becomes the outer side, and then the second surface becomes the outer side. A pin contact characterized in that it is folded back to form a double folded bent portion, and both side surfaces thereof form a first contact surface and a second contact surface.   The pin contact according to claim 2 or 3, further comprising a locking concave portion or a locking convex portion for preventing removal when the socket contact is inserted into the socket contact.   A socket connector comprising a plurality of socket contacts according to claim 1 held in an insulator.   5. A pin connector comprising a plurality of pin contacts as claimed in claim 2, 3 or 4 held in an insulator.

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