JP6088279B2 - Pressure contact type contact - Google Patents

Description

  The present invention relates to a pressure contact type contact for electrically connecting two conductive members including a covered electric wire.

  An electrical connector for electrically connecting two conductive members is known (for example, see Patent Document 1).

  The electrical connector described in Patent Document 1 has a pressure contact type contact. The press contact type contact has two pairs of press contact blades (35, 39) and a pair of elastic contact pieces (32) continuous with the pair of press contact blades (39). The two pairs of press contact blades (35, 39) form slots (37, 41) for receiving the covered electric wire (2). The covered electric wire (2) is inserted into these slots (37, 41). Thereby, the covering portion (21) of the covered electric wire (2) passing through the slot (37, 41) is cut by the two pairs of press contact blades (35, 39). As a result, the core wire (22) of the covered electric wire (2) is in contact with the press contact blade (35, 39) while being exposed from the cover portion (21), and is electrically connected to the press contact blade (35, 39). The elastic contact piece (32) is electrically connected to the contact (51) by sandwiching the contact (51) of the board-side connector (4).

JP 2005-294217 A

  In the configuration described in Patent Document 1, the core wire (22) inserted into each slot (37, 41) of the two pairs of press contact blades (35, 39) expands the width of each slot (37, 41). It is inserted into the slots (37, 41) while being displaced. Thus, as a result of the width of the slot (37, 41) being expanded, the core wire (22) is easily removed from the slot (37, 41).

  In particular, a connector mounted on a small electronic device such as a digital still camera, a video camera, a mobile phone, a smartphone, or a PDA (personal digital assistant) has a very small size. For example, such an electrical connector may have a minute size in which the length, width, and height are all about 1 mm. In such a small electrical connector, it is difficult to ensure the elasticity of the press contact blade (35, 39). As a result, the force with which the pressure contact blades (35, 39) elastically sandwich the core wire (22) is weak, and the core wire (22) is likely to be detached from the slots (37, 41).

  In the configuration described in Patent Document 1, an electric wire holding part (20) for holding the covered electric wire (2) is formed in the housing (11). However, the distance between the wire holding part (20) and the slot (37, 41) is long. For this reason, the function in which the electric wire holding part (20) suppresses the disconnection of the core wire (22) with respect to the slots (37, 41) is not sufficient.

  In view of the above circumstances, the present invention is capable of more reliably maintaining an electrical connection in a press contact type contact for electrically connecting a plurality of conductive members including a covered electric wire. With the goal.

(1) In order to solve the above-mentioned problem, a press contact according to an aspect of the present invention is formed with a press contact blade for cutting the covered portion of the covered electric wire having a core wire portion and a covered portion, and the cutting The pressure contact portion that can be in contact with the core wire portion exposed from the covered portion, the contact portion that can be in contact with a conductive member that is at least partially exposed in advance, and the pressure contact portion and the contact portion are integrated. A first connecting portion to be connected; an electric wire holding portion for holding the covered electric wire; and a second connecting portion for integrally connecting the electric wire holding portion and the press contact portion; and the press contact portion and the contact point Each of the first connecting portion and the first connecting portion has a pair of pieces, and the pair of pieces of the pressure contact portion form a slot for receiving the covered electric wire, and the pair of the contact portions. The conductive member by one piece of An accepting slot is formed, and one piece of the first connecting portion connects one piece of the press contact portion and one piece of the contact portion, and The other piece of one connecting portion connects the other piece of the pressure contact portion and the other piece of the contact portion .

  In the present invention, “pressure welding” refers to cutting the covered portion of the covered electric wire and contacting the core wire portion of the covered electric wire exposed by this cutting.

According to this configuration, the covered electric wire in contact with the press contact portion is held by the electric wire holding portion. Thereby, the electric wire holding | maintenance part can suppress that the core wire part in the location which is contacting the press-contact part displaces carelessly with respect to a press-contact part. As a result, the contact between the core wire portion and the pressure contact portion can be prevented from being released, so that the electrical connection between the core wire portion of the covered electric wire and the conductive member can be more reliably maintained. Moreover, the electric wire holding part is provided in the contact. Thereby, since an electric wire holding | maintenance part can be arrange | positioned near a press-contact part, the electric wire holding part can hold | maintain a covered electric wire in the vicinity of the contact location of a press-contact part and a core wire part. Thereby, it can suppress more reliably that a core wire part displaces so that it may leave | separate from a press-contact part. As described above, in the press contact type contact for electrically connecting a plurality of conductive members including the covered electric wire, the electrical connection can be more reliably maintained. Furthermore, the slot into which the covered electric wire is inserted and the slot into which the conductive member is inserted can be formed by a single pressure contact type contact. For this reason, it is not necessary to form each said slot combining a contact and another member. Therefore, the labor for assembling the press contact is reduced.

(2) Preferably, the said press-contact part is comprised so that contact with the said covered electric wire displaced along a predetermined electric wire insertion direction is possible, and the said 1st connection part is an end of the said press-contact part in the said electric wire insertion direction continuously separate component, the second connecting portion is continuous to the other end of the pressure contact portion of the electric wire insertion direction.

  According to this configuration, for example, by pressing and bending a single plate member such as a metal plate, the press contact portion, the first connection portion, and the second connection portion can be formed in a lump. Thereby, the pressure contact type contact can be easily formed. Moreover, it is not necessary to arrange | position the 1st connection part and the 2nd connection part separately in the direction orthogonal to an electric wire insertion direction. Thereby, the width | variety of a press-contact type contact can be made narrower. As a result, further miniaturization of the pressure contact type contact can be achieved.

  (3) More preferably, the first connecting portion is continuous with an upstream end portion of the press contact portion in the electric wire insertion direction, and the second connection portion is a downstream end of the press contact portion in the electric wire insertion direction. Consecutive parts.

  According to this configuration, when the covered electric wire is connected to the press contact portion, the reaction force acting on the press contact portion from the covered electric wire can be more reliably received by the first connecting portion. Thereby, it can suppress that the upstream edge part of a press-contact part deform | transforms excessively. As a result, the contact between the pressure contact portion and the covering portion can be more reliably maintained.

  (4) More preferably, the first connecting portion is continuous with an upstream end portion of the contact portion in the electric wire insertion direction.

  According to this configuration, the pressure contact portion and the contact portion can be arranged to face each other, and the first connecting portion can be arranged straight in the direction in which the pressure contact portion and the contact portion face each other. Thereby, the length of the press contact type contact in the electric wire insertion direction can be further reduced. As a result, the pressure contact type contact can be further downsized.

Good Mashiku, the pressure-contact type contact is formed by punching and bending a single plate member having conductivity.

  According to this configuration, the press contact type contact can be formed by punching and bending a single plate member.

( 5 ) Preferably, the said 1st connection part has a fulcrum part, and the said press-contact part and the said contact part are comprised so that the seesaw motion which makes the said fulcrum part a fulcrum is possible.

  According to this configuration, the reaction force due to contact between any one of the pressure contact portion and the connection portion and the corresponding core wire portion or the conductive member (one corresponding member) is caused by the pressure contact portion via the seesaw motion of the first connecting portion. And any one of the connecting portions and the other corresponding member. As a result, a force is generated that pressurizes either the pressure contact portion or the connection portion and the other corresponding member. As described above, either one of the pressure contact portion and the connection portion and the one corresponding member are reliably maintained in a contact state by a reaction force generated between them, and either one of the pressure contact portion and the connection portion and the other. The corresponding member is reliably maintained in contact with the force from the first connecting portion.

  According to the present invention, in the press contact type contact for electrically connecting a plurality of conductive members including the covered electric wire, the electrical connection can be more reliably maintained.

It is a perspective view which shows the state which the electrical connector which concerns on embodiment of this invention has electrically connected the other party contact and the covered electric wire. It is a perspective view which shows the state which the electrical connector, the other party contact, and the covered electric wire isolate | separated from each other. It is a top view of a pressure-contact connector, and has shown the state by which the covered electric wire and the other party contact were connected to the electrical connector. It is a perspective view of a pressure contact. It is a perspective view of a pressure contact. It is a side view of a contact. FIG. 3 is a perspective view of a single connector, showing the electrical connector as viewed from the upstream side in the insertion direction. It is a perspective view of the single unit of a connector, and shows the state where the electric connector was seen from the downstream side of the insertion direction. It is a side view of the single body of an electrical connector. It is a top view of the metal plate for manufacturing a press-contact type contact. It is a perspective view of the intermediate for manufacture of a press-contact type contact. It is a figure for demonstrating the bending process of the intermediate body for manufacture. It is a figure for demonstrating the bending process of the intermediate body for manufacture. It is a side view which shows the electrical connector of a state before a covered electric wire and the other party contact are connected. It is a top view of the principal part which shows the state by which the covered electric wire was connected to the electrical connector. It is a top view of the principal part which shows the state by which the covered electric wire and the other party contact were connected to the electrical connector. It is a perspective view of the press contact type contact which concerns on the 1st modification of this invention. It is a top view of the press contact type contact which concerns on a 1st modification. It is a perspective view of a contact concerning the 2nd modification of the present invention. It is a top view of the electrical connector which concerns on the 2nd modification of this invention. It is a perspective view of the press contact type contact which concerns on the 3rd modification of this invention. It is a top view of the electrical connector which concerns on the 3rd modification of this invention.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The present invention can be widely applied to various applications as an electrical connector and a pressure contact type contact.

[Configuration of electrical connector]
FIG. 1 is a perspective view showing a state in which an electrical connector 1 according to an embodiment of the present invention electrically connects a plurality of mating contacts 102a and 102b and corresponding covered wires 101a and 101b. FIG. 2 is a perspective view showing a state where the electrical connector 1, the mating contacts 102a and 102b, and the covered electric wires 101a and 101b are separated from each other.

  With reference to FIG.1 and FIG.2, the electrical connector 1 is provided in a portable small electronic device, for example. Examples of such electronic devices include a digital still camera, a video camera, a mobile phone, a smartphone, and a PDA (Personal Digital Assistant). In the present embodiment, the size of the electrical connector 1 is about 2 to 3 mm at the maximum in each of the vertical, horizontal and thickness sides. Thus, the electrical connector 1 is extremely small. The electrical connector 1 is a pressure contact type electrical connector, and can be brought into contact with the core wire portion 104 inside each covered portion 103 by cutting the covered portion 103 of each covered electric wire 101a, 101b.

  The electrical connector 1 is provided to electrically connect the core wire portion 104 (first conductive member) of each of the covered electric wires 101a and 101b and the corresponding counterpart contact (second conductive member) 102a and 102b. .

  Each counterpart contact 102a, 102b is formed using a conductive material such as metal. In the present embodiment, each counterpart contact 102a, 102b is formed in a thin plate shape. Further, at least one of the counterpart contacts 102a and 102b is exposed in advance, and in the present embodiment, all are exposed in advance. Each counterpart contact 102a, 102b is fixed to, for example, a circuit board (not shown) using solder, and is electrically connected to the circuit board. Each covered electric wire 101a, 101b is electrically connected to an electric device such as a battery, for example.

  FIG. 3 is a plan view of the electrical connector 1 and shows a state in which the covered electric wires 101 a and 101 b and the mating contacts 102 a and 102 b are connected to the electric connector 1. With reference to FIG. 3, each of the covered electric wires 101 a and 101 b has a covering portion 103 and a core wire portion 104.

  The covering portion 103 is a cylindrical member formed using an insulating material such as synthetic resin. The covering portion 103 covers the core wire portion 104 over the entire circumferential direction of the core wire portion 104.

  The core wire portion 104 is formed using a conductive material such as metal. One end of the core wire portion 104 is in contact with the corresponding press contact type contacts 2a and 2b (described later) of the electrical connector 1.

  The electrical connector 1 is formed in a flat block shape as a whole. Hereinafter, the length direction of the electrical connector 1 is referred to as a length direction X1. Further, in the plan view of the electrical connector 1, a direction orthogonal to the length direction X1 is referred to as a width direction Y1. A direction orthogonal to both the length direction X1 and the width direction Y1 is referred to as a thickness direction Z1.

  In a state where each of the covered electric wires 101a and 101b and each of the mating contacts 102a and 102b is attached to the electrical connector 1, one end of each of the coated electric wires 101a and 101b is arranged in parallel with the length direction X1, The contacts 102a and 102b are also arranged in parallel with the length direction X1.

  1 to 3, the electrical connector 1 includes a plurality of press contact type contacts 2 a and 2 b and a housing 3 that holds the press contact type contacts 2 a and 2 b.

  The press contact type contacts 2a and 2b are in direct contact with the core wire portions 104 of the corresponding covered electric wires 101a and 101b and the corresponding counterpart contacts 102a and 102b. Thereby, the core part 104 of each covered electric wire 101a, 101b is electrically connected with the corresponding other party contact 102a, 102b.

  In the present embodiment, the two press contact contacts 2a and 2b have the same shape. Therefore, in the following, a configuration related to one pressure contact type contact 2a will be mainly described.

  4 and 5 are perspective views of the press contact type contact 2a, respectively. In FIG. 5, one covered electric wire 101a and one counterpart contact 102a are shown together. FIG. 6 is a side view of the pressure contact type contact 2a.

  3 to 6, the press contact type contact 2 a is formed using a conductive material. More specifically, the pressure contact type contact 2a is made of, for example, a copper alloy as a material. The surface of the pressure contact type contact 2a is subjected to a plating process such as tin plating or gold plating.

The pressure contact type contact 2a has a function as a pressure contact and a function as a contact contact. In the present embodiment, the “pressure contact” means that the press contact type contact 2a comes into contact with the core wire portion 104 exposed by cutting the covering portion 103 of the covered electric wire 101a. The press contact type contact 2a is in direct contact with both the core wire portion 104 of the covered electric wire 101a and the counterpart contact 102a.

  In the present embodiment, the press contact type contact 2a is formed by punching and bending one flat plate member having conductivity. That is, the entire pressure contact type contact 2a is integrally formed using a single material. In the present embodiment, the press contact type contact 2a is formed in a bowl shape. In the present embodiment, the press contact type contact 2a is formed in a symmetrical shape in the width direction Y1. The press contact type contact 2a is formed in a meandering shape when viewed in the width direction Y1 (in side view).

  The core wire portion 104 of the covered electric wire 101a that is displaced along the predetermined insertion direction D1 is inserted into the pressure contact type contact 2a. In addition, a mating contact 102a that is displaced along the insertion direction D1 is inserted into the pressure contact type contact 2a. In the present embodiment, the insertion direction D1 is parallel to the thickness direction Z1.

  The press contact type contact 2 a includes a press contact portion 4, a first connecting portion 5, a contact portion 6, a second connecting portion 7, and an electric wire holding portion 8. The electric wire holding part 8, the second connecting part 7, the press contact part 4, and the contact part 6 are arranged in this order in the length direction X1.

The pressure contact portion 4 is provided to cut the covering portion 103 of the covered electric wire 101a and to contact the core wire portion 104 of the covered electric wire 101a. The pressure contact portion 4 forms a first slot 10 opened in a direction opposite to the insertion direction D1, and can come into contact with the covered electric wire 101a that is displaced along the insertion direction D1. Specifically, the pressure contact portion 4 has a pair of first contact portions 11 a and 11 b that form the first slot 10. A pair of 1st contact parts 11a and 11b is an example of "a pair of piece part of a press-contact part" of the present invention. The first slot 10 receives the covered electric wire 101a.

  The first contact portions 11 a and 11 b are provided to contact the core wire portion 104. A pair of first contact portions 11 a and 11 b is provided to sandwich the core wire portion 104. The pair of first contact portions 11a and 11b are flat plate portions arranged in the width direction Y1, and extend so as to be orthogonal to the length direction X1. The pair of first contact portions 11a and 11b includes upstream end portions 12a and 12b, downstream end portions 13a and 13b, press contact blades 14a and 14b, and first shoulder portions 15a and 15b in the insertion direction D1. Have.

  The downstream end portions 13 a and 13 b are continuous with the second connecting portion 7. First fixing portions 16a and 16b are formed on the outer surface of the first contact portion 11 at the downstream end portions 13a and 13b. The first fixing portions 16a and 16b are protrusion-like portions and are press-fitted and fixed to contact holding portions 44a (details will be described later) of the housing 3.

  The distance between the inner side surfaces of the first contact portions 11a and 11b is increased as it goes from the downstream end portions 13a and 13b to the upstream end portions 12a and 12b. Further, in the upstream end portions 12a and 12b, the interval between the inner surfaces of the first contact portions 11a and 11b (the width of the first slot 10) is once narrowed. Thereafter, the interval between the inner side surfaces of the first contact portions 11a and 11b is increased again. A pair of press contact blades 14a, 14b is formed in a portion where the distance between the inner surfaces of the first contact portions 11a, 11b is narrow.

  The press contact blades 14a and 14b are provided to cut the covering portion 103 of the covered electric wire 101a. The press contact blades 14a and 14b are formed in small pieces protruding toward the first slot 10 and protrude toward the space in which the core wire portion 104 is inserted. In a state where the core wire portion 104 is inserted into the first slot 10, the pair of press contact blades 14a and 14b face the core wire portion 104 in the thickness direction Z1. The pair of press contact blades 14a and 14b is an example of the “holding portion” in the present invention, and holds the core wire portion 104 in order to maintain the core wire portion 104 in contact with the first contact portions 11a and 11b. . Thereby, it is suppressed that core wire part 104 slips out in the direction opposite to insertion direction D1. A pair of first shoulder portions 15a and 15b are arranged so as to be aligned with the pair of press contact blades 14a and 14b in the width direction Y1.

  The first shoulder portions 15a and 15b are disposed near the outer surface of the first contact portion 11 in the width direction Y1. In the length direction X1, the positions of the first shoulder portions 15a and 15b are aligned with the positions of the press contact blades 14a and 14b. In the width direction Y1, the first shoulder portions 15a and 15b are disposed between the outer surfaces of the first contact portions 11a and 11b and the press contact blades 14a and 14b. In the thickness direction Z1, the first shoulder portions 15a and 15b are disposed between the upstream end portions 12a and 12b and the downstream end portions 13a and 13b. With such a configuration, the space occupied by the first shoulder portions 15a and 15b is reduced. As a result, downsizing of the press contact type contact 2a is achieved. The first connecting portion 5 extends from the pair of first shoulder portions 15a and 15b.

  The 1st connection part 5 is provided in order to connect the press-contact part 4 and the contact part 6 integrally. The 1st connection part 5 has a pair of arm parts 17a and 17b. The pair of arm portions 17a and 17b is an example of “a pair of pieces of the first connecting portion” in the present invention.

  The pair of arm portions 17a and 17b are provided to connect a pair of first contact portions 11a and 11b and a pair of second contact portions 21a and 21b described later of the contact portion 6. The pair of arm portions 17a and 17b are provided to cause a seesaw motion in the second contact portions 21a and 21b corresponding to the first contact portions 11a and 11b.

  The pair of arm portions 17a and 17b is provided as a beam portion in the press contact type contact 2a and extends along the length direction X1. One arm portion 17a connects one first contact portion 11a and one second contact portion 21a. Similarly, the other arm portion 17b connects the other first contact portion 11b and the other second contact portion 21b.

  One end portions of the arm portions 17a and 17b are continuous with the first shoulder portions 15a and 15b of the corresponding first contact portions 11a and 11b. In the width direction Y1, one end portions of the arm portions 17a and 17b are disposed inside the outer surfaces of the first contact portions 11a and 11b. Further, in the thickness direction Z1, one end portions of the arm portions 17a and 17b are disposed between the upstream end portions 12a and 12b and the downstream end portions 13a and 13b. With this arrangement, one end portions of the arm portions 17a and 17b do not protrude in the width direction Y1 and do not protrude in the thickness direction Z1 with respect to the first contact portions 11a and 11b. Thereby, size reduction of the press contact type contact 2a is achieved. One end portions of the pair of arm portions 17a and 17b are bent toward the one side in the length direction X1 while being bent about 90 degrees from the first shoulder portions 15a and 15b, and are continuous with the intermediate portion of the pair of arm portions 17a and 17b. doing.

  An intermediate portion between the pair of arm portions 17a and 17b is a portion extending substantially parallel to the length direction X1. The arm portions 17a, 17b are formed in a substantially quadrangular prism shape and have an outer surface shape that swells in the width direction Y1.

With this configuration, the arm portions 17a and 17b have first bulge portions 172a and 172b. The first bulge portions 172a and 172b bulge toward corresponding fulcrum receiving portions 50a and 50b (details will be described later) of the housing 3, and are in contact with the corresponding fulcrum receiving portions 50a and 50b. The apexes of the first bulge portions 17 2 a and 17 2 b form fulcrum portions 173 a and 173 b.

  The fulcrum portions 173 a and 173 b are received by the fulcrum receiving portions 50 a and 50 b of the housing 3. Thereby, one first contact part 11a, one arm part 17a, and one second contact part 21a can perform a seesaw motion with the fulcrum part 173a as a fulcrum. Similarly, the other first contact portion 11b, the other arm portion 17b, and the other second contact portion 21b can perform a seesaw motion with the fulcrum portion 173b as a fulcrum. The other end portion of the arm portions 17a and 17b is continuous with the intermediate portion of the arm portions 17a and 17b having the above-described configuration.

  The other end portions of the pair of arm portions 17 a and 17 b are formed in a shape bent approximately 90 degrees from the middle portion of the arm portions 17 a and 17 b and are continuous with the contact portion 6.

  The contact portion 6 forms a second slot 20 opened in a direction opposite to the insertion direction D1. Specifically, the contact portion 6 has a pair of second contact portions 21a and 21b, and a second slot 20 is formed between the pair of second contact portions 21a and 21b. The pair of second contact portions 21a and 21b is an example of “a pair of contact portions” according to the present invention. The second slot 20 is aligned with the first slot 10 in the length direction X1. The second slot 20 receives the counterpart contact 102a.

  The second contact portions 21a and 21b are provided to contact the mating contact 102a. A pair of second contact portions 21a and 21b is provided to sandwich the counterpart contact 102a. The pair of second contact portions 21a and 21b are flat plate portions arranged in the width direction Y1, and extend so as to be orthogonal to the length direction X1. The pair of second contact portions 21a and 21b includes upstream end portions 22a and 22b, downstream end portions 23a and 23b, contact convex portions 24a and 24b, and second shoulder portions 25a and 25b in the thickness direction Z1. Have.

  The downstream end portions 23a and 23b are fixed to a base portion 27 extending in the width direction Y1. Further, both end portions of the base portion 27 in the width direction Y1 have second fixing portions 26a and 26b. The second fixing portions 26 a and 26 b are press-fitted and fixed to the contact holding portion 44 a of the housing 3.

  In the region from the downstream end portions 23a and 23b toward the upstream end portions 22a and 22b, the distance between the inner surfaces of the second contact portions 21a and 21b (the width of the second slot 20) remained constant. After that, it is once narrowed. Next, the distance between the inner side surfaces of the second contact portions 21a and 21b is increased again. Thus, a pair of contact convex parts 24a and 24b are formed in the part where the space | interval between the inner surface of 2nd contact part 21a, 21b becomes narrow.

  The contact protrusions 24a and 24b are formed in a small piece protruding toward the second slot 20, and protrude toward the place where the mating contact 102a is inserted. In a state where the mating contact 102a is inserted into the second slot 20, the pair of contact protrusions 24a and 24b elastically sandwich the mating contact 102a. The pair of contact convex portions 24a and 24b is an example of the “holding portion” in the present invention, and the counterpart contact 102a is used to maintain the counterpart contact 102a in contact with the second contact portions 21a and 21b. Hold by pinching. Thereby, it is suppressed that the other party contact 102a slips out in the direction opposite to the insertion direction D1. A pair of second shoulder portions 25a and 25b are arranged so as to be aligned with the pair of contact convex portions 24a and 24b in the width direction Y1.

  The second shoulder portions 25a and 25b are connected to the other end portions of the arm portions 17a and 17b. The second shoulder portions 25a and 25b are projecting portions formed on the outer surfaces of the second contact portions 21a and 21b in the width direction Y1. In the length direction X1, the positions of the second shoulder portions 25a and 25b are aligned with the positions of the contact convex portions 24a and 24b. In the width direction Y <b> 1, the positions of the second shoulder portions 25 a and 25 b are between one end portion and the other end portion of the base portion 27. In the thickness direction Z1, the second shoulder portions 25a and 25b are arranged between the upstream end portions 22a and 22b and the downstream end portions 23a and 23b. With such a configuration, the space occupied by the second shoulder portions 25a and 25b is reduced. As a result, downsizing of the press contact type contact 2a is achieved.

  The other end portions of the arm portions 17a and 17b are disposed inside the both end portions of the base portion 27 in the width direction Y1. Further, the other end portions of the arm portions 17a and 17b are disposed between the upstream end portions 22a and 22b and the downstream end portions 23a and 23b in the thickness direction Z1. With such an arrangement, the other end portions of the arm portions 17a and 17b do not protrude greatly in the width direction Y1, and do not protrude significantly in the thickness direction Z1. Thereby, size reduction of the press contact type contact 2a is achieved.

  The electric wire holding portion 8 is provided in order to prevent the covered electric wire 101a from coming off from the press contact type contact 2a. The electric wire holding portion 8 is an example of the “holding portion” in the present invention, and holds the covered electric wire 101a in order to maintain the state where the core wire portion 104 is in contact with the first contact portions 11a and 11b. Thereby, it can suppress that the core wire part 104 slips out in the direction opposite to the insertion direction D1.

  The electric wire holding portion 8 is disposed adjacent to the press contact portion 4. In the present embodiment, the distance between the press contact portion 4 and the wire holding portion 8 is smaller than the distance between the press contact portion 4 and the contact portion 6. With such an arrangement, the press contact type contact 2a can be shortened in the length direction X1 while sufficiently securing the lengths of the arm portions 17a and 17b of the first connecting portion 5. That is, it is possible to reduce the size of the pressure contact type contact 2a while sufficiently securing the swinging amount of the second contact portions 21a and 21b corresponding to the first contact portions 11a and 11b accompanying the seesaw motion of the arm portions 17a and 17b.

  The electric wire holding part 8 is formed in a U-shape as a whole, and forms a third slot 30 opened in a direction opposite to the insertion direction D1. Specifically, the electric wire holding portion 8 has a pair of guide pieces 31a and 31b and a base portion 32, and a third slot 30 is formed between the pair of guide pieces 31a and 31b. ing.

  Each guide piece 31a, 31b is formed in a prismatic shape. The distance between the guide pieces 31 a and 31 b, that is, the width of the third slot 30 is set to be smaller than the diameter of the covering portion 103 of the covered electric wire 101 a and larger than the diameter of the core wire portion 104, for example. With such a configuration, the pair of guide pieces 31a and 31b can sandwich the covering portion 103 of the covered electric wire 101a with a predetermined holding force. The downstream end portions of the pair of guide pieces 31 a and 31 b in the insertion direction D <b> 1 are continuous with the base portion 32.

  The base portion 32 is provided as a bottom portion of the electric wire holding portion 8. A recess 33 is formed in the base 32. The hollow portion 33 receives the covering portion 103 of the covered electric wire 101a, thereby restricting the covered electric wire 101a from being excessively displaced in the insertion direction D1.

  Third fixing portions 34a and 34b are formed at both ends of the base portion 32 in the width direction Y1. The third fixing portions 34 a and 34 b are projecting portions and are press-fitted and fixed to the contact holding portion 44 a of the housing 3. The base portion 32 having the above-described configuration is connected to the pair of first contact portions 11a and 11b via the second connection portion 7.

  The 2nd connection part 7 is provided in order to connect the press-contact part 4 and the electric wire holding part 8 integrally. In this embodiment, the 2nd connection part 7 is formed in U shape in the side view, and has the shape protruded toward the insertion direction D1. The press contact type contact 2 a having the above configuration is held by the housing 3.

  FIG. 7 is a perspective view of the single electrical connector 1 and shows the electrical connector 1 as viewed from the upstream side in the insertion direction D1. FIG. 8 is a perspective view of the single electrical connector 1 and shows the electrical connector 1 as viewed from the downstream side in the insertion direction D1. FIG. 9 is a side view of a single unit of the electrical connector 1.

  With reference to FIG. 3 and FIGS. 7-9, the housing 3 is formed using insulating materials, such as a synthetic resin. The housing 3 is a single member formed by injection molding or the like. In the present embodiment, the housing 3 holds two press contact contacts 2a and 2b.

  The housing 3 is formed in a flat block shape, and is formed in a substantially rectangular shape in a plan view (a state viewed from the thickness direction Z1). Moreover, the housing 3 is formed in a symmetrical shape in the width direction Y1.

  The housing 3 includes an outer peripheral wall 41, a partition wall 42, a bottom wall 43, contact holding portions 44a and 44b, and electric wire holding portions 45a and 45b.

  The outer peripheral wall 41 is formed in a substantially rectangular shape in plan view. The outer peripheral wall 41 has a first wall portion 46, a second wall portion 47, a third wall portion 48, and a fourth wall portion 49.

  The 1st wall part 46 and the 2nd wall part 47 are provided as a part extended in the width direction Y1. The 1st wall part 46 and the 2nd wall part 47 are spaced apart and arrange | positioned in the length direction X1. One end of the first wall 46 and one end of the second wall 47 in the width direction Y <b> 1 are continuous with the third wall 48. Further, the other end of the first wall 46 and the other end of the second wall 47 in the width direction Y <b> 1 are continuous with the fourth wall 49.

  The 3rd wall part 48 and the 4th wall part 49 are provided as a part extended in the length direction X1. The 3rd wall part 48 and the 4th wall part 49 are spaced apart and arrange | positioned in the width direction Y1. The partition wall 42 is disposed so as to extend in parallel with the third wall portion 48 and the fourth wall portion 49.

  The partition wall 42 is provided in the housing 3 as a portion disposed between the press contact contacts 2a and 2b adjacent to each other in the width direction Y1. The number of the partition walls 42 is a value obtained by subtracting 1 from the number of the press contact type contacts 2 a and 2 b in the electrical connector 1. That is, in this embodiment, two press contact type contacts 2a and 2b are provided, and the number of partition walls 42 is one.

  In the present embodiment, one end and the other end of the partition wall 42 in the length direction X1 are continuous with the first wall 46 and the second wall 47, respectively. The partition wall 42 has one side surface 42a and the other side surface 42b facing the width direction Y1.

  The one side surface 42a is parallel to the inner side surface 48a of the third wall portion 48 and faces the inner side surface 48a in the width direction Y1. One pressure contact type contact 2a is disposed between the one side surface 42a and the inner side surface 48a. The other side surface 42b is parallel to the inner side surface 49a of the fourth wall portion 49 and faces the inner side surface 49a in the width direction Y1. The other press contact type contact 2b is disposed between the other side surface 42b and the inner side surface 49a. A bottom wall 43 is disposed downstream of the partition wall 42 and the outer peripheral wall 41 in the insertion direction D1. The bottom wall 43 is disposed so as to partially close the opening on the downstream side of the outer peripheral wall 41 in the insertion direction D1.

  A plurality of contact holding portions 44a and 44b are formed by the bottom wall 43, the outer peripheral wall 41, and the partition wall 42. The contact holding portions 44a and 44b are provided to hold the pressure contact type contacts 2a and 2b. The contact holding portions 44a and 44b hold the corresponding press contact type contacts 2a and 2b. The contact holding portions 44a and 44b are arranged in the width direction Y1.

  One contact holding portion 44a is formed using the first to third wall portions 46 to 48, the partition wall 42, and the bottom wall 43, and surrounds one pressure contact type contact 2a. The other contact holding portion 44b is formed by using the first wall portion 46, the second wall portion 47, the fourth wall portion 49, the partition wall 42 and the bottom wall 43, and surrounds the other pressure contact type contact 2b. Yes.

  With reference to FIGS. 3 and 7, one contact holding portion 44 a includes one side surface 42 a of the partition wall 42 and an inner side surface 48 a of the third wall portion 48.

  One side surface 42a of the partition wall 42 and the inner side surface 48a of the third wall portion 48 are an example of “a pair of side surfaces of the contact holding portion”, and are arranged so as to sandwich one pressure contact type contact 2a. The inner side surface 48a of the third wall portion 48 and the one side surface 42a of the partition wall 42 have a fulcrum receiving portion 50a and a fulcrum receiving portion 50b, respectively. The fulcrum receiving portions 50a and 50b face the corresponding fulcrum portions 173a and 173b of the one pressure contact type contact 2a in the width direction Y1, and receive the corresponding fulcrum portions 173a and 173b.

  With the above configuration, the reaction force conversion mechanisms 51a and 51b are provided for one pressure contact type contact 2a. Each of the reaction force conversion mechanisms 51a and 51b has a seesaw structure.

  Specifically, one reaction force conversion mechanism 51a includes one first contact portion 11a, one arm portion 17a, and one second contact portion 21a of the press contact type contact 2a, and the third wall portion of the housing 3. 48, and a fulcrum receiving portion 50a formed at 48. In one reaction force conversion mechanism 51a, the fulcrum part 173a of one arm part 17a acts as a fulcrum in a state where it is received by the fulcrum receiving part 50a. In one reaction force conversion mechanism 51a, one first contact portion 11a and one second contact portion 21a function as power points and also function as action points.

The other reaction force conversion mechanism 51 b is formed on the other first contact portion 11 b, the other arm portion 17 b, the other second contact portion 21 b of the one pressure contact type contact 2 a, and the partition wall 42 of the housing 3. And a fulcrum receiving portion 50b. In the other reaction force conversion mechanism 5 1 b, the fulcrum part 173b of the other arm part 17b acts as a fulcrum while being received by the fulcrum receiving part 50b. In the other reaction force converting mechanism 5 1 b, the first contact portion 11b and the other of the second contact portion 21b of the other functions as a force point, and also functions as a working point.

One press contact type contact 2a constituting part of the reaction force conversion mechanisms 51a and 51b is press-fitted and fixed to the housing 3. Specifically, the first fixing portions 16 a and 16 b , the second fixing portions 26 a and 26 b , and the third fixing portions 34 a and 34 b of the press contact type contact 2 a are formed on the inner side surface 48 a of the third wall portion 48. The protrusion and the protrusion formed on one side 42a of the partition wall 42 are press-fitted and fixed.

  One contact holding portion 44a has a slit 52a into which the mating contact 102a is inserted. The slit 52a is formed in the second wall 47 of the housing 3 and penetrates the housing 3 in the length direction X1. The slit 52a is aligned with the second slot 20 of the contact portion 6 in the length direction X1.

Further, the housing 3 has a stopper portion 53 a extending from the bottom wall 43 of the housing 3. The stopper portion 53a is a wall-shaped portion that is disposed adjacent to the second slot 20 of the one pressure contact type contact 2a. The mating contact 102a inserted into the second slot 20 is received by the stopper portion 53a, whereby further entry into the contact holding portion 44a is restricted. Thus, it is possible to suppress the a mating contact 102a and the covered electric wire 101 a is in contact.

  Next, the other contact holding portion 44b will be described. The other contact holding portion 44b has the same configuration as the one contact holding portion 44a. Specifically, the other contact holding portion 44 b has the other side surface 42 b of the partition wall 42 and the inner side surface 49 a of the fourth wall portion 49.

Other aspects 42b, and the inner surface 49a of the fourth wall portion 49 of the partition wall 42 is an example of "a pair of side surfaces of the contact holding portion", are arranged so as to sandwich the other insulation displacement contact 2 b. The other side surface 42b of the partition wall 42 and the inner side surface 49a of the fourth wall portion 49 have a fulcrum receiving portion 50c and a fulcrum receiving portion 50d, respectively. The fulcrum receiving portions 50c and 50d face the corresponding fulcrum portions 173a and 173b of the other press contact type contact 2b in the width direction Y1, and receive the corresponding fulcrum portions 173a and 173b.

  With the above configuration, the reaction force conversion mechanisms 51c and 51d are provided for the other pressure contact type contact 2b. Each of the reaction force conversion mechanisms 51c and 51d has a seesaw structure.

  Specifically, one reaction force conversion mechanism 51c includes one first contact portion 11a, one arm portion 17a, and one second contact portion 21a of the other pressure contact type contact 2b, and a partition wall of the housing 3 The fulcrum receiving part 50c formed in 42 is included. In one reaction force conversion mechanism 51c, the fulcrum part 173a of one arm part 17a acts as a fulcrum in a state where it is received by the fulcrum receiving part 50c. In one reaction force conversion mechanism 51c, one first contact portion 11a and one second contact portion 21a function as power points and also function as action points.

The other reaction force conversion mechanism 5 1 d includes the other first contact portion 11 b, the other arm portion 17 b, the other second contact portion 21 b of the other press contact type contact 2 b , and the fourth wall portion of the housing 3. 49, and a fulcrum receiving portion 50d formed at 49. In the other reaction force conversion mechanism 5 1 d, the fulcrum part 173b of the other arm part 17b acts as a fulcrum while being received by the fulcrum receiving part 50d. In the other reaction force conversion mechanism 5 1 d, the other first contact portion 11b and the other second contact portion 21b function as a force point and also function as an action point.

The other press contact type contact 2 b constituting a part of the reaction force conversion mechanisms 51 c and 51 d is press-fitted and fixed to the housing 3. Specifically, the first fixing portions 16a and 16b , the second fixing portions 26a and 26b, and the third fixing portions 34a and 34b of the press contact type contact 2b are convex portions formed on the other side surface 42b of the partition wall 42. , And press-fitted and fixed to a convex portion formed on the inner surface 49 a of the fourth wall portion 49.

  The other contact holding portion 44b has a slit 52b into which the counterpart contact 102b is inserted. The slit 52b is formed in the second wall portion 47 of the housing 3 and penetrates the housing 3 in the length direction X1. The slit 52b is arranged in the length direction X1 with the second slot 20 of the contact portion 6 of the other pressure contact type contact 2b.

  Further, the housing 3 has a stopper portion 53 b extending from the bottom wall 43 of the housing 3. The stopper portion 53b is a wall-shaped portion that is disposed adjacent to the second slot 20 of the other pressure contact type contact 2b. The mating contact 102b inserted into the second slot 20 is received by the stopper 53b, so that further entry into the contact holding portion 44b is restricted. Thereby, it can suppress that the other party contact 102b and the covered electric wire 101b contact.

  Electric wire holding portions 45a and 45b are formed adjacent to the contact holding portions 44a and 44b having the above-described configuration.

With reference to FIGS. 3, 7 and 9, the electric wire holding portion 45a, 45b is provided on the first wall portion 4 6, corresponding covered wires 101a, and is configured to hold 101b. The electric wire holding portions 45a and 45b are formed in a symmetrical shape in the width direction Y1.

  Each electric wire holding part 45a, 45b has a pair of electric wire holding pieces 55a, 55b and a pair of electric wire holding pieces 56a, 56b.

  The pair of electric wire holding pieces 55a and 55b is formed in a columnar shape extending in the direction opposite to the insertion direction D1 in the first wall portion 46. The pair of electric wire holding pieces 55a and 55b are disposed to face each other in the width direction Y1. In the present embodiment, the cross-sectional shape perpendicular to the length direction X1 is uniform in the pair of electric wire holding pieces 55a and 55b. The pair of wire holding pieces 55a and 55b cooperate to form a wire holding groove 57.

  The electric wire holding groove 57 is a groove-like portion in which the corresponding covered electric wires 101a and 101b are held. In the present embodiment, the wire holding groove 57 is formed by using the surfaces of the pair of wire holding pieces 55a and 55b facing each other. The bottom part of the electric wire holding groove 57 is formed in a circular arc surface shape, and can receive the covering part 103 of the corresponding covered electric wires 101a and 101b. The electric wire holding groove 57 is opened in the direction opposite to the insertion direction D1, and is opened in the length direction X1. The space partitioned by the electric wire holding groove 57 is arranged in the length direction X1 with the corresponding first slot 10 of each press contact type contact 2a, 2b. Electric wire holding pieces 56a and 56b projecting toward the electric wire holding groove 57 are provided at the distal ends of the pair of electric wire holding pieces 55a and 55b.

  The wire holding pieces 56a and 56b can hold down the covering portions 103 of the corresponding covered wires 101a and 101b inserted into the wire holding grooves 57. The electric wire holding pieces 56a and 56b have guide inclined surfaces 58a and 58b and electric wire regulating surfaces 59a and 59b.

  The inclined guide surfaces 58 a and 58 b are provided to guide the corresponding covered wires 101 a and 101 b that are displaced along the insertion direction D <b> 1 and are inserted into the wire holding groove 57 to the wire holding groove 57. The positions of the guide inclined surfaces 58a and 58b are upstream of the position of the wire holding groove 57 in the insertion direction D1. The guide inclined surfaces 58 a and 58 b are formed in an inclined shape toward the bottom of the wire holding groove 57 as they approach each other. The guide inclined surfaces 58a and 58b are adjacent to the wire regulating surfaces 59a and 59b.

  The wire regulating surfaces 59a and 59b are provided to prevent the corresponding covered wires 101a and 101b from coming off from the wire holding groove 57. The positions of the wire regulating surfaces 59a and 59b are downstream of the positions of the guide inclined surfaces 58a and 58b in the insertion direction D1. In the present embodiment, the wire regulating surfaces 59a and 59b are formed in an inclined shape and extend toward the bottom of the wire holding groove 57 as the distance between the wire regulating surfaces 59a and 59b approaches. The wire regulating surfaces 59a and 59b may be flat surfaces extending perpendicular to the thickness direction Z1.

  With the above configuration, one electric wire holding piece 55a and one electric wire holding piece 56a are formed in a bowl shape as a whole. Similarly, the other electric wire holding piece 55b and the other electric wire holding piece 56b are formed in a bowl shape as a whole.

  The above is the schematic configuration of the electrical connector 1.

[Method of manufacturing pressure contact type contact]
Next, a manufacturing method of the press contact type contact 2a will be described. FIG. 10 is a plan view of a metal plate 81 for manufacturing the pressure contact type contact 2a. FIG. 11 is a perspective view of the intermediate body 82 for manufacturing the press contact type contact 2a. Referring to FIGS. 4, 10, and 11, when manufacturing the press contact type contact 2 a, first, a metal plate 81 as a conductive member is prepared. The metal plate 81 is a flat plate member having a constant thickness. The metal plate 81 is punched by a predetermined press machine (not shown). Thereby, the manufacturing intermediate 82 shown in FIG. 11 is formed.

  The press contact 2 is formed by bending the manufacturing intermediate 82. Differences between the production intermediate 82 and the press contact type contact 2 will be described below. The manufacturing intermediate 82 includes a first connecting portion 5 ′ and a second connecting portion 7 ′. The first connecting portion 5 ′ has a pair of flat arm portions 17 a ′ and 17 b ′. The first connecting portion 5 ′ has the same configuration as the first connecting portion 5 except that both end portions of one arm portion 17a ′ are flat and both end portions of the other arm portion 17b ′ are flat. have. The second connecting portion 7 ′ has the same configuration as the second connecting portion 7 except that it is formed flat.

  That is, the manufacturing intermediate 82 has the same configuration as that of the press contact type contact 2a except that the entire first connecting portion 5 ′ is flat and the entire second connecting portion 7 ′ is flat. doing. An opening 83 is formed in the manufacturing intermediate 82. The opening 83 is formed by the pressure contact portion 4, the first connecting portion 5 ′, and the second contact portion 6.

  At the time of manufacturing the press contact type contact 2 a, the metal plate 81 is punched into the shape of the outer edge portion of the manufacturing intermediate 82 and punched so as to have the opening 83 by the press machine described above. Thereby, the intermediate body 82 for manufacture is completed. That is, the production intermediate 82 is completed by a single press working operation by the press. In addition, this press work process may include the press process of multiple times.

  Next, the production intermediate 82 is subjected to bending as shown in FIGS. 12 and 13 are diagrams for explaining the bending process of the manufacturing intermediate 82. The production intermediate 82 is disposed between the female mold 85 and the male mold 86 of the bending machine 84. Next, the manufacturing intermediate 82 is bent by the female mold 85 and the male mold 86. In addition, this bending process may be completed by one process, and may be completed by several processes.

  As a result, both end portions of the arm portions 17a 'and 17b' of the first connecting portion 5 'are bent 90 degrees. In FIGS. 12 and 13, the other arm portion 17 b ′ is not shown. The second connecting portion 7 ′ is bent so as to be U-shaped. Thereby, the press contact type contact 2a is completed. The pressure contact type contact 2b is formed in the same manner as the pressure contact type contact 2a. The press contact type contacts 2 a and 2 b completed through the above steps are press-fitted and fixed to the housing 3.

[Connection work of coated wire and mating contact to pressure connector]
Next, an operation of connecting the covered electric wire 101a and the counterpart contact 102a to the electrical connector 1 will be described. FIG. 14 is a side view showing the electrical connector 1 in a state before the covered electric wire 101a and the mating contact 102a are connected. FIG. 15 is a plan view of the main part showing a state in which the covered electric wires 101 a and 101 b are connected to the electrical connector 1. FIG. 16 is a plan view of the main part showing a state where the covered electric wires 101a and 101b and the mating contacts 102a and 102b are connected to the electrical connector 1. FIG.

  Referring to FIG. 14, when connecting the covered electric wire 101a and the mating contact 102a to the electric connector 1, the worker faces the electric connector 1 and the covered electric wire 101a in the thickness direction Z1. In addition, the worker faces the electrical connector 1 and the counterpart contact 102a in the thickness direction Z1.

  Next, the worker inserts the covered electric wire 101a into the electrical connector 1 by displacing the covered electric wire 101a in the insertion direction D1. Thereby, as shown in FIG. 15, the covered electric wire 101a is inserted into the contact holding portion 44a. At this time, a part of the covered electric wire 101a is inserted into the first slot 10 of the press contact type contact 2a and comes into contact with the press contact blades 14a and 14b. The press contact blades 14a and 14b cut the covering portion 103 of the covered electric wire 101a to expose the core wire portion 104. The core wire portion 104 is sandwiched between the pair of first contact portions 11 a and 11 b of the press contact portion 4. Thereby, the core wire part 104 contacts the press-contact part 4. In this state, the core wire portion 104 is arranged on the downstream side of the pair of press contact blades 14a and 14b in the insertion direction D1, thereby preventing the covered electric wire 101a from being detached from the press contact contact 2a.

  When the covered electric wire 101a is inserted into the first slot 10, the core wire portion 104 uses the reaction force F1 and F2 as the reaction forces F1 and F2 to increase the distance between the pair of first contact portions 11a and 11b. It acts on 1 contact part 11a, 11b. The reaction forces F1 and F2 are generally directed in the width direction Y1.

  A part of the covered electric wire 101a is inserted into the third slot 30 of the electric wire holding portion 8 of the press contact type contact 2a. Thereby, the covering portion 103 of the covered electric wire 101 a is sandwiched between the pair of guide pieces 31 a and 31 b of the electric wire holding portion 8. Therefore, the covered wire 101a is prevented from being detached from the press contact type contact 2a.

A part of the covered electric wire 101 a is inserted into the electric wire holding part 45 a of the housing 3. Thereby, it is suppressed that the covered electric wire 101a comes off from the press contact type contact 2a .

Next, the worker inserts the counterpart contact 102 a (not shown in FIG. 15) into the slit 52 a and the second slot 20. Accordingly, as shown in FIG. 16, the counterpart contact 102a is sandwiched between the pair of second contact portions 21a and 21b of the contact portion 6 of the press contact type contact 2a. Thereby, the other party contact 102a contacts with a pair of 2nd contact parts 21a and 21b, As a result, it electrically connects with the core wire part 104 of the covered electric wire 101a via the press-contact type contact 2a.

  When the mating contact 102a is inserted into the second slot 20, the mating contact 102a uses the reaction force F3, F4 as the reaction force F3, F4 to increase the distance between the pair of second contact portions 21a, 21b. 2 acts on the contact portions 21a and 21b. The reaction forces F3 and F4 are generally directed in the width direction Y1.

  As described above, the reaction forces F1 and F2 are applied from the core wire portion 104 to the pair of first contact portions 11a and 11b. That is, reaction forces F1 and F2 received by the first contact portions 11a and 11b by the contact between the pair of first contact portions 11a and 11b and the core wire portion 104 are applied. In the reaction force conversion mechanisms 51a and 51b, the reaction forces F1 and F2 act, so that the arm portions 17a and 17b receive a swinging force with the fulcrum portions 173a and 173b serving as fulcrums. As a result, the reaction forces F1 and F2 are converted into forces F11 and F21 that pressurize the pair of second contact portions 21a and 21b and the counterpart contact 102a to each other. Thereby, the contact pressure (contact pressure) between the pair of second contact portions 21a and 21b and the counterpart contact 102a is increased.

  On the other hand, reaction forces F3 and F4 act from the mating contact 102a to the pair of second contact portions 21a and 21b. That is, reaction forces F3 and F4 received by the second contact portions 21a and 21b due to the contact between the second contact portions 21a and 21b and the counterpart contact 102a are applied. In the reaction force conversion mechanisms 51a and 51b, the reaction forces F3 and F4 act, so that the arm portions 17a and 17b receive a swinging force with the fulcrum portions 173a and 173b serving as fulcrums. As a result, the reaction forces F3 and F4 are converted into forces F31 and F41 that pressurize the pair of first contact portions 11a and 11b and the core wire portion 104 to each other. Thereby, the contact pressure of a pair of 1st contact parts 11a and 11b and the core wire part 104 is raised.

  In addition, since the operation | movement at the time of connecting the covered electric wire 101b and the other party contact 102b to the other press-contacting type contact 2b is the same as the above, description is abbreviate | omitted.

As described above, according to the electrical connector 1 according to the present embodiment, the reaction forces F1 and F2 caused by the contact between the first contact portions 11a and 11b and the corresponding core wire portion 104 are transmitted via the reaction force conversion mechanisms 51a and 51b. Thus, it acts between the second contact portions 21a and 21b and the counterpart contact 102a. As a result, forces F11 and F21 that pressurize the second contact portions 21a and 21b and the counterpart contact 102a are generated. Thus, the first contact portions 11a and 11b and the core wire portion 104 are reliably maintained in contact with each other by the reaction forces F1 and F2 generated between them, and the second contact portions 21a and 21b and the counterpart contact The contact state is reliably maintained by the forces F11 and F21 from the reaction force conversion mechanisms 51a and 51b. In the same manner as described above, the first contact portions 11a and 11b and the core wire portion 104 are reliably maintained in the contact state by the forces F 31 and F 41 from the reaction force conversion mechanisms 51a and 51b, and the second contact. The contact state between the portions 21a and 21b and the counterpart contact 102a is reliably maintained by the reaction forces F3 and F4.

Further, the electric wire holding portion 8 of the insulation displacement contacts 2a, pressing blades 14a, 14b, and the contact convex portions 24a, 24b can hold the corresponding covered wire 101 a and the mating contacts 102a. Thereby, the contact state of the first contact portions 11a and 11b and the core wire portion 104 can be more reliably maintained by the electric wire holding portion 8 and the press contact blades 14a and 14b. Further, the contact state between the second contact portions 21a and 21b and the counterpart contact 102a can be more reliably maintained by the contact convex portions 24a and 24b. In the present embodiment, the electrical connector 1 is a minute electrical connector mounted on an electronic device. For this reason, since the pressure contact type contact 2a is small, depending on the elasticity of the pressure contact type contact 2a, it is difficult to ensure a sufficient contact pressure between the pressure contact type contact 2a, the core wire portion 104, and the counterpart contact 102a. However, since the pressure contact type contact 2a is provided with the wire holding portion 8, the pressure contact blades 14a and 14b, and the contact convex portions 24a and 24b, the contact state between the pressure contact type contact 2a, the core wire portion 104, and the mating contact 102a. Can be maintained more reliably. Depending on the above, according to the electrical connector 1, the electrical connection can be more reliably maintained.

  The effect of the other press contact type contact 2b is the same as the effect of the one press contact type contact 2a, and the description thereof will be omitted.

  Moreover, according to the electrical connector 1, the arm portions 17a and 17b have the first contact portions 11a and 11b as the power points and the fulcrum portions 173a and 173b as the fulcrums due to the contact between the first contact portions 11a and 11b and the core wire portion 104. Displace. Thereby, the 2nd contact parts 21a and 21b are displaced to the other party contact 102a side by operating as an action point. Thereby, the 2nd contact parts 21a and 21b and the other party contact 102a contact so that a predetermined contact pressure may be generated by mutual pressurization. Further, a seesaw structure is adopted in the press contact type contact 2a. Thereby, reaction force F3, F4 which the 2nd contact parts 21a and 21b receive from the other party contact 102 turns into force F13 and F14 which pressurizes the 1st contact parts 11a and 11b to the core wire part 104. FIG. Accordingly, the first contact portions 11a and 11b and the second contact portions 21a and 21b can contact the corresponding core wire portion 104 and the counterpart contact 102a with sufficient contact pressure. As a result, the electrical connection between the core wire portion 104 of the covered wire 101a and the mating contact 102a can be more reliably maintained via the press contact type contact 2a.

  Moreover, according to the electrical connector 1, the first slot 10 for sandwiching the core wire portion 104 can be formed by the pair of first contact portions 11a and 11b. Further, the second slot 20 for sandwiching the counterpart contact 102 can be formed by the pair of second contact portions 21a and 21b. Moreover, a pair of arm part 17a, 17b has connected corresponding 1st contact part 11a, 11b and 2nd contact part 21a, 21b. As a result of adopting such a configuration, the contact pressure and the contact area between the first contact portions 11a and 11b and the core wire portion 104 can be further increased. Furthermore, the contact pressure and contact area between the second contact portions 21a, 21b and the counterpart contact 102a can be further increased.

  Further, according to the electrical connector 1, in the arm portions 17a and 17b, the fulcrum portions 173a and 173b are provided on the first bulge portions 172a and 172b having a bulge shape toward the corresponding fulcrum receiving portions 50a and 50b of the housing 3. It has been. According to this configuration, the fulcrum parts 173a and 173b of the arm parts 17a and 17b can be more reliably brought into contact with the corresponding fulcrum receiving parts 50a and 50b of the housing 3. Thereby, it can suppress that parts other than fulcrum part 173a, 173b among arm parts 17a, 17b contact the housing 3 arbitrarily. Therefore, the seesaw motion as intended by the designer can be more reliably generated in the arm portions 17a and 17b.

  Moreover, according to the electrical connector 1, the first contact portions 11a and 11b have the press contact blades 14a and 14b. According to this configuration, the covering portion 103 is cut by causing the press contact blades 14a and 14b to perform the operation of cutting the covering portion 103 of the covered electric wire 101a. Furthermore, the core part 104 exposed from the cut | disconnected location will contact 1st contact part 11a, 11b.

  Further, according to the electrical connector 1, the first contact portions 11a and 11b include the press contact blades 14a and 14b protruding toward the first slot 10 through which the core wire portion 104 passes, and the press contact blades 14a and 14b are The core wire portion 104 can be held. According to this structure, the press contact blades 14a and 14b also serve as a wire holding portion. For this reason, in the press contact type contact 2a, it is not necessary to separately provide a member having only the function of the electric wire holding portion. As a result, further miniaturization of the press contact type contact 2a can be achieved.

  Further, according to the press contact type contact 2a, the press contact portion 4 and the contact portion 6 are integrally connected by the first connecting portion 5, and the press contact portion 4 and the electric wire holding portion 8 are integrally connected by the second connecting portion 7. Yes. According to this configuration, the covered wire 101a in contact with the pressure contact portion 4 is held by the wire holding portion 8 of the pressure contact type contact 2a. Thereby, the electric wire holding part 8 can suppress that the core wire part 104 in the location which is contacting the press-contact part 4 is displaced carelessly with respect to the press-contact part 4. As a result, it is possible to suppress the contact between the core wire portion 104 and the pressure contact portion 4, so that the electrical connection between the core wire portion 104 of the covered electric wire 101 a and the mating contact 102 a can be more reliably maintained. Moreover, the electric wire holding portion 8 is provided in the press contact type contact 2a. Thereby, the electric wire holding part 8 can be arrange | positioned near the press-contact part 4. FIG. Therefore, the electric wire holding portion 8 can hold the covered electric wire 101 a near the contact portion between the pressure contact portion 4 and the core wire portion 104. Thereby, it can suppress more reliably that the core wire part 104 displaces away from the press-contact part 4. FIG. Depending on the above, the electrical connection can be more reliably maintained in the press contact type contact 2a.

  Further, according to the press contact type contact 2a, the first connecting portion 5 and the second connecting portion 7 are respectively connected to the upstream end portions 12a and 12b and the downstream end portions 13a and 13b of the press contact portion 4 in the insertion direction D1. ing. According to this structure, the press-contact part 4, the 1st connection part 5, and the 2nd connection part 7 can be formed in a lump by stamping and bending the metal plate 81 of 1 sheet. Thereby, the press contact type contact 2a can be formed easily. Moreover, the 1st connection part 5 and the 2nd connection part 7 do not need to be spaced apart and arrange | positioned in the direction orthogonal to the insertion direction D1. Thereby, the width | variety (length of the width direction Y1) of the press-contact type contact 2a can be made narrower. As a result, further miniaturization of the press contact type contact 2a can be achieved.

  Moreover, according to the press contact type contact 2a, the 1st connection part 5 is arrange | positioned in the upstream edge part 12a, 12b of the press contact part 4 in the insertion direction D1. If it is such a structure, when the covered electric wire 101a is connected to the press-contact part 4, the reaction force F1, F2 which acts on the press-contact part 4 from the covered electric wire 101a will be received more reliably by the 1st connection part 5. be able to. Thereby, it can suppress that the upstream edge parts 12a and 12b of the press-contact part 4 deform | transform excessively. As a result, the contact between the press contact portion 4 and the core wire portion 104 can be more reliably maintained.

Moreover, according to the press contact type contact 2a, the 1st connection part 5 is following the upstream edge part 22a, 22b of the contact part 6 in the insertion direction D1. According to this structure, the press-contact part 4 and the contact part 6 can be arrange | positioned facing each other, and the 1st connection part 5 can be arrange | positioned straight in the length direction X1 where the press-contact part 4 and the contact part 6 face. Thereby, the length of the press contact type contact 2a in the insertion direction D1 can be made smaller. As a result, the pressure contact type contact 2a can be further reduced in size.

  Further, according to the press contact type contact 2a, the pair of first contact portions 11a and 11b of the press contact portion 4 forms the first slot 10 that receives the covered electric wire 101a. A pair of second contact portions 21a and 21b of the contact portion 6 forms a second slot 20 that receives the counterpart contact 102a. According to this configuration, the first slot 10 into which the covered electric wire 101a is inserted and the second slot 20 into which the mating contact 102a is inserted can be formed by the pressure contact type contact 2a alone. For this reason, it is not necessary to form the slots 10 and 20 by combining the press contact type contact and other members. Therefore, the labor for assembling the press contact type contact 2a can be reduced.

[Modification]
As mentioned above, although embodiment of this invention was described, this invention is not restricted to the said embodiment, A various change is possible as long as it described in the claim. For example, the following modifications may be made. In the following description, configurations different from those of the above-described embodiment will be mainly described, and components similar to those of the above-described embodiment are denoted by the same reference numerals and detailed description thereof is omitted.

[First Modification]
FIG. 17 is a perspective view of a press contact type contact 2aA according to a first modification of the present invention, and FIG. 18 is a plan view of the press contact type contact 2aA. With reference to FIGS. 17 and 18, in this embodiment, the press contact type contact 2aA is formed in an asymmetric shape in the width direction Y1. Specifically, the press contact type contact 2aA has a first connecting portion 5A. The first connecting portion 5A has a pair of arm portions 17aA and 17bA. One arm portion 17aA is thicker than the other arm portion 17bA. More specifically, in the cross section orthogonal to the length direction X1, the cross sectional area of one arm portion 17aA is larger than the cross sectional area of the other arm portion 17bA. In addition, the width of the shoulder portion 15aA of one first contact portion 11aA is larger than the width of the shoulder portion 15bA of the other first contact portion 11b. The width of the shoulder portion 25aA of the one second contact portion 21aA is larger than the width of the shoulder portion 25bA of the other second contact portion 21bA.

[Second Modification]
FIG. 19 is a perspective view of a pressure contact type contact 2aB according to a second modification of the present invention, and FIG. 20 is a plan view of an electrical connector 1B according to the second modification of the present invention. Referring to FIGS. 19 and 20, in this embodiment, the press contact type contact 2aB is formed in an asymmetric shape in the width direction Y1. Specifically, the press contact type contact 2aB has a configuration similar to the configuration in which one arm portion 17a and one second contact portion 21a are removed from the press contact type contact 2a. A shoulder portion is not formed on the first contact portion 11aB of the pressure contact portion 4A. The press contact type contact 2aB has a first connecting portion 5B and a contact portion 6B.

  Thus, according to the electrical connector 1B, only one second contact portion 21bB is provided. According to this configuration, the space occupied by the pressure contact type contact 2aB can be reduced. Further, the counterpart contact 102a that is in contact with the second contact portion 21bB is exposed in advance, and is not configured to be partially cut by the second contact portion 21bB. Therefore, even if there is only one second contact portion 21bB, the contact between the second contact portion 21bB and the counterpart contact 102a can be reliably achieved.

[Third Modification]
FIG. 21 is a perspective view of a pressure contact type contact 2aC according to a third modification of the present invention. FIG. 22 is a plan view of an electrical connector 1C according to a third modification of the present invention. Referring to FIGS. 21 and 22, in the present embodiment, the arm portions 17aC and 17bC of the first connecting portion 5C of the press contact type contact 2aC do not have portions that bulge toward the fulcrum receiving portions 50aC and 50bC. . On the other hand, second bulge portions 68a and 68b are provided on the inner side surface 48a of the third wall portion 48 and one side surface 42a of the partition wall 42 in the housing 3C. The second bulge portions 68a and 68b are formed in a shape that bulges toward the corresponding fulcrum portions 173aC and 173bC of the arm portions 17aC and 17bC. In the present modification, the second bulge portions 68a and 68b are formed in a protruding shape protruding from the corresponding one side surface 42a and the inner side surface 48a. The fulcrum receiving portions 50aC and 50bC are formed on the second bulge portions 68a and 68b. On the other hand, the fulcrum portions 173aC and 173bC of the arm portions 17aC and 17bC are flat surfaces substantially parallel to the insertion direction D1, respectively.

  According to the electrical connector 1C, the fulcrum receiving portions 50aC and 50bC in the housing 3B can be more reliably brought into contact with the corresponding fulcrum portions 173aC and 173bC of the arm portions 17aC and 17bC. Thereby, it can suppress that parts other than the fulcrum receiving part 50aC and 50bC in the housing 3C contact the arm parts 17aC and 17bC arbitrarily. Therefore, the seesaw motion as intended by the designer can be more reliably generated in the arm portions 17aC and 17bC.

[Other variations]
(1) In the said embodiment and each modification, the mechanism which has a seesaw structure was demonstrated as an example of the reaction force conversion mechanism. However, this need not be the case. The reaction force conversion mechanism converts the reaction force acting on the first contact portion of the pressure contact portion from the covered wire into a force that pressurizes the second contact portion of the contact portion and the counterpart contact, and the counterpart contact The reaction force acting on the second contact portion of the contact portion may be converted into a force that pressurizes the first contact portion of the press contact portion and the covered electric wire. As such a reaction force conversion mechanism, various mechanisms such as a cam mechanism, a screw mechanism, and a link mechanism can be exemplified.

  (2) Moreover, in the said embodiment and each modification, the 1st contact part, the 2nd contact part, and the arm part each demonstrated the structure each provided mainly. However, this need not be the case. At least one of the first contact portion, the second contact portion, and the arm portion may be provided.

  (3) Moreover, in the said embodiment and each modification, the structure by which the press-contact type contact was formed using one board member was demonstrated. However, this need not be the case. For example, the press contact type contact may be configured by combining a plurality of plate members.

  (4) Moreover, in the said embodiment and each modification, the contact convex part was mentioned as an example as a holding | maintenance part which hold | maintains the other party contact. However, this need not be the case. For example, a holding portion that holds the counterpart contact may be provided at a position opposite to the insertion direction with respect to the contact convex portion. In this case, the holding portion may be provided in the press contact type contact or may be provided in the housing.

  (5) Moreover, in the said embodiment and each modification, the form which provides a reaction force conversion mechanism was demonstrated to the example. However, this need not be the case. For example, the reaction force conversion mechanism may not be provided in the electrical connector.

  (6) Moreover, in the said embodiment and each modification, various structures of the electrical connector were demonstrated. However, the electrical connector of the present invention includes a pressure contact portion having one or more pressure contact blades, a contact portion, a first connection portion that connects the pressure contact portion and the contact portion, a wire holding portion, a wire holding portion, and a pressure contact portion. It is only necessary to have the second connecting portion that connects the two, and the other configuration is not limited.

  The present invention can be widely applied as a pressure contact type contact.

2a, 2b, 2aA, 2aB, 2aC Pressure contact type contact 4, 4A Pressure contact part 5, 5A, 5B, 5C First connection part 6, 6B Contact part 7 Second connection part 8 Electric wire holding part 10 First slot 11a, 11b, 11aA, 11bA, 11aB, 11bB First contact portion (a pair of pieces of the pressure contact portion)
12a, 12b Upstream end (one end of the press contact)
13a, 13b Downstream end (the other end of the pressure contact portion)
14a, 14b pressure contact blades 17a, 17b, 17aA, 17bA, 17aC, 17bC arm part (a pair of one part of the first connecting part)
20 2nd slot 21a, 21b, 21aA, 21bA 2nd contact part (a pair of one part of contact part)
22a, 22b Upstream end of contact 61 Metal plate (plate member)
101a, 101b covered electric wire (first conductive member)
102a, 102b Mating contact (conductive member)
103 Covering part 104 Core wire part 173a, 173b, 173aC, 173bC Support point part D1 Insertion direction (electric wire insertion direction)

Claims (5)

A pressure contact portion for forming the pressure contact blade for cutting the covered portion of the covered electric wire having the core wire portion and the cover portion, and being in contact with the core wire portion exposed from the cut covered portion; and
A contact portion capable of contacting at least a part of the conductive member exposed in advance;
A first connecting part that integrally connects the pressure contact part and the contact part;
An electric wire holding part for holding the covered electric wire;
A second connecting part that integrally connects the electric wire holding part and the pressure contact part ,
Each of the press contact portion, the contact portion, and the first connection portion has a pair of pieces.
A slot for receiving the covered electric wire is formed by the pair of pieces of the pressure contact portion,
A slot for receiving the conductive member is formed by the pair of pieces of the contact portion,
The one piece of the first connecting portion connects the one piece of the pressure contact portion and the one piece of the contact portion,
The pressure contact type contact , wherein the other piece of the first connecting portion connects the other piece of the pressure contact portion and the other piece of the contact portion . The press contact type contact according to claim 1,
The pressure contact portion is configured to be able to contact the covered electric wire that is displaced along a predetermined electric wire insertion direction,
The first connecting portion is continuous with one end portion of the press contact portion in the electric wire insertion direction , and the second connecting portion is continuous with the other end portion of the press contact portion in the electric wire insertion direction. Press contact type contact. The press contact type contact according to claim 2,
The first connecting portion is continuous with an upstream end portion of the pressure contact portion in the electric wire insertion direction,
The press contact type contact, wherein the second connecting portion is continuous with a downstream end portion of the press contact portion in the electric wire insertion direction. The press contact type contact according to claim 3,
The pressure contact type contact, wherein the first connecting portion is continuous with an upstream end portion of the contact portion in the electric wire insertion direction. The press contact type contact according to any one of claims 1 to 4 ,
The first connecting part has a fulcrum part,
The pressure contact type contact, wherein the pressure contact portion and the contact point portion are configured to allow seesaw motion with the fulcrum portion as a fulcrum .

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