JP2019192511A - Contact, connector and connection device - Google Patents

Abstract

To provide a contact, a connector and a connection device capable of reducing electric resistance.SOLUTION: A contact 2 comprises a contact part 21, a base part 22, a coupling part 23, and a projection part 24. The contact part 21 can contact a partner side contact 5. The base part 22 is at least partially opposed to the contact part 21 via a gap. The coupling part 23 couples between the contact part 21 and the base part 22. The projection part 24 protrudes from the contact part 21 toward the base part 22 side in a facing direction of the contact part 21 and the base part 22. The base part 22 has an opposed part 221 opposed to the projection part 24. At least in a connection state, the contact part 21 is made conductive with the opposed part 221 in a second route R2. In the connection state, the contact part 21 contacts the partner side contact 5. The second route R2 is different from a first route R1 including the coupling part 23 and includes the projection part 24.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates generally to contacts, connectors, and connection devices, and more particularly to connector contacts that can be electrically connected to a mating connector, connectors including the same, and connection devices including the same.

  Patent Document 1 describes a board-to-board connection device including a socket that is one connector and a header that is a mating connector.

  In Patent Document 1, the connector includes a plurality of contacts (socket contacts) and a housing (socket body) that holds the contacts. Each contact is made of a band-shaped metal material, and includes a holding portion and a bending portion extending from the holding portion. The holding portion is formed in a U-shape and is held by the housing so as to sandwich the peripheral wall of the housing. The bending portion can be bent in a direction that changes the distance between the holding portion and the holding portion. A contact portion (contact convex portion) protruding in a direction away from the holding portion is formed in the bending portion. In a state where the mating connector is connected to the connector, the contact portion of the contact elastically contacts a part of the contact of the mating connector, and both contacts are electrically connected.

JP 2005-294036 A

  In the connector having the above-described configuration, it is necessary to secure a certain length for the contact (particularly the bent portion) so that the contact pressure between both contacts can be secured by the elasticity of the bent portion of the contact. However, when the contact lengthens, the electrical resistance of the contact itself increases, which hinders reduction in loss at the connector.

  The present disclosure has been made in view of the above reasons, and an object of the present disclosure is to provide a contact, a connector, and a connection device that can reduce electrical resistance.

  The contact which concerns on 1 aspect of this indication is a contact of the connector which can be electrically connected with the other party connector. The contact includes a contact portion, a base portion, a connecting portion, and a protruding portion. The contact portion can contact a contact of the mating connector. The base portion is at least partially opposed to the contact portion through a gap. The connecting portion connects the contact portion and the base portion. The protruding portion protrudes from the contact portion toward the base portion in a facing direction in which the contact portion and the base portion face each other. The base portion has a facing portion that faces the protruding portion. At least in the connected state, the contact portion is electrically connected to the facing portion in the second path. The connection state is a state where the contact portion is in contact with the contact of the mating connector. The second path is a path different from the first path including the connecting portion and includes the protrusion.

  A connector according to an aspect of the present disclosure includes the contact and a housing that holds the contact.

  A connection device according to an aspect of the present disclosure includes the connector and the mating connector.

  The present disclosure has an advantage that electric resistance can be suppressed to a small value.

FIG. 1A is a schematic diagram of an end surface in a non-connected state showing the connection device according to the first embodiment. FIG. 1B is a schematic view of an end face in a connected state showing the connection device according to the embodiment. FIG. 2A is a perspective view of the above connecting device in a non-connected state. FIG. 2B is a perspective view of the connection device of the above in a connected state. FIG. 3A corresponds to a cross-sectional view taken along line X1-X1 in FIG. 2B, and is a cross-sectional view showing a non-connected state of the connecting device. FIG. 3B corresponds to a cross-sectional view taken along line X1-X1 in FIG. 2B and is a cross-sectional view illustrating a connection state of the above-described connection device. FIG. 4A is a perspective view of a contact according to the first embodiment, FIG. 4B is a front view of the same contact, and FIG. 4C is a right side view of the same contact. 5A to 5D are schematic views illustrating main parts of a contact according to a modification of the first embodiment. FIG. 6A is a perspective view of the connection device according to the second embodiment in a non-connected state. FIG. 6B is a perspective view of the connection device of the above in a connected state. FIG. 7A corresponds to a cross-sectional view taken along line X1-X1 in FIG. FIG. 7B corresponds to a cross-sectional view taken along line X1-X1 of FIG. 6B and is a cross-sectional view showing a connection state of the connection device same as above. FIG. 8A is a cross-sectional view illustrating a non-connected state of the connection device according to the third embodiment. FIG. 8B is a cross-sectional view showing a connection state of the connection device same as above. FIG. 9A is a perspective view showing an intermediate product of a contact of a connection device according to a modified example of Embodiment 3, and FIG. 9B is a perspective view showing a completed product of the same contact. FIG. 10A is a cross-sectional view of a main part showing a non-connected state of the connection device according to the fourth embodiment. FIG. 10B is a cross-sectional view of a main part showing a connection state of the connection device same as above. FIG. 11A is a perspective view of a contact according to Embodiment 5, and FIG. 11B is a front view of the contact according to the fifth embodiment. 12A is a perspective view of another contact according to the fifth embodiment, and FIG. 12B is a perspective view of still another contact according to the fifth embodiment.

(Embodiment 1)
(1) Overview Hereinafter, the connector 101 according to the present embodiment will be described with reference to FIGS. 1A to 2B. However, each drawing described below is a schematic diagram, and the length or size ratio of each part in the drawing does not necessarily reflect the actual dimensional ratio.

  The connector 101 according to this embodiment can be electrically connected to the mating connector 102. The connector 101 constitutes the connection device 100 together with the counterpart connector 102. In other words, the connection device 100 according to the present embodiment includes the connector 101 and the mating connector 102. In the connection device 100, the “connected state” in which the connector 101 and the counterpart connector 102 are electrically connected and the “non-connected state” in which the connector 101 and the counterpart connector 102 are not electrically connected are two. Two states can be switched. In this embodiment, as an example, the connector 101 is a socket (female connector), and the mating connector 102 is a header (male connector).

  The connection device 100 is used for electrical connection between a plurality of circuit boards 71 and 72 (see FIG. 3A) such as a rigid board (hard board) or a flexible printed wiring board, for example, board-to-board electrical connection. It is done. As an example, the connection device 100 is used for electrical connection between a plurality of circuit boards 71 and 72 mounted on a mobile terminal such as a smartphone. However, the purpose of the connection device 100 is not limited to the portable terminal, and the connection device 100 may be used for an electronic device other than the portable terminal, such as a camera module, an in-vehicle device, or a home appliance. In addition, the connection device 100 is not limited to the use of electrically connecting the plurality of circuit boards 71 and 72, but may be a plurality of appropriate devices such as a circuit board and a display, or a circuit board and a battery. You may use for the electrical connection between connection objects.

  The connector 101 according to this embodiment includes a housing 1 and a plurality of contacts 2. The housing 1 holds a plurality of contacts 2. In this embodiment, the plurality of contacts 2 adopt a common configuration. Therefore, the configuration described below for any one of the plurality of contacts 2 is applied to all the plurality of contacts 2.

  As shown in FIGS. 1A and 1B, the contact 2 includes a contact portion 21, a base portion 22, a connecting portion 23, and a protruding portion 24. The contact portion 21 contacts the contact 5 of the mating connector 102 (hereinafter also referred to as “the mating contact 5”) in the “connected state” in which the mating connector 102 is connected to the connector 101. The base 22 is at least partially opposed to the contact 21 via a gap. The connecting portion 23 connects the contact portion 21 and the base portion 22. The protruding portion 24 protrudes from the contact portion 21 toward the base portion 22 in the facing direction in which the contact portion 21 and the base portion 22 face each other.

  Here, the base portion 22 has a facing portion 221 that faces the protruding portion 24 in the thickness direction of the base portion 22. In other words, the protruding portion 24 protruding from the contact portion 21 toward the base portion 22 faces at least a part of the base portion 22 (opposing portion 221). In the contact 2 configured in this manner, at least in the “connected state”, as shown in FIG. 1B, the second path R2 is a path different from the first path R1 including the connecting portion 23 and includes the protrusion 24. Thus, the contact portion 21 is electrically connected to the facing portion 221.

  That is, since the contact portion 21 and the base portion 22 are connected by the connecting portion 23, the contact portion 21 and the facing portion 221 of the base portion 22 are always electrically connected via the first path R1 including the connecting portion 23. Connected. Further, at least in the “connected state”, that is, in a state where the mating connector 102 is connected to the connector 101, the contact portion 21 and the facing portion 221 are electrically connected via the second route R2 in addition to the first route R1. Connected. The second route R <b> 2 is a route different from the first route R <b> 1 including the connecting portion 23, and does not include the connecting portion 23 and includes the protruding portion 24.

  In short, in the contact 2, at least in the “connected state”, the first path R1 including the connecting portion 23 and the second path R2 including the protruding portion 24 are between the contact portion 21 and the facing portion 221. Two current paths (energization paths) are formed. Therefore, at least in the “connected state”, the electrical resistance between the contact portion 21 and the base portion 22 (opposing portion 221) is smaller than the configuration in which the contact portion 21 is electrically connected to the facing portion 221 only in the first path R1. Become. As a result, in the contact 2, the connector 101 including the contact 2, and the connection device 100 including the contact 2 according to the present embodiment, the electrical resistance can be suppressed to a small value.

(2) Details Hereinafter, the contact 2, the connector 101 including the contact 2, and the connection device 100 including the contact 2 according to the present embodiment will be described in detail with reference to FIGS. 1A to 4C.

  Hereinafter, unless otherwise specified, the direction in which the connector 101 and the mating connector 102 are coupled or separated from each other is the vertical direction (also referred to as “first direction”), and the mating connector 102 side is viewed from the connector 101 upward. Will be described. In addition, the short direction of the housing 1 which is a direction orthogonal to the vertical direction will be described as a horizontal direction (also referred to as “second direction”). In addition, the direction orthogonal to both the vertical direction and the horizontal direction, that is, the longitudinal direction of the housing 1 will be described as the front-rear direction (the direction orthogonal to the paper surface of FIG. 1A, also referred to as “third direction”). That is, in FIG. 1A and the like, as indicated by the arrows “up”, “down”, “left”, “right”, “front”, “back”, the respective directions of up, down, left, right, front, and rear Is specified. However, these directions are not intended to define the usage direction of the contact 2, the connector 101, and the connection device 100. In addition, the arrows indicating the directions in the drawings are merely shown for explanation, and do not accompany the substance.

(2.1) Overall Configuration of Connector First, the overall configuration of the connector 101 according to the present embodiment will be described.

  In the present embodiment, as described above, the connector 101 is a socket that can be electrically connected to the mating connector 102 as a header, and as shown in FIGS. 40 contacts 2). In the present embodiment, the connector 101 further includes a pair of mounting brackets 3.

  The housing 1 is a resin molded body. The housing 1 has electrical insulation. The housing 1 has a bottom wall 11 and a peripheral wall 12. The bottom wall 11 is formed in a rectangular shape that is longer in the front-rear direction than in the left-right direction in plan view. The peripheral wall 12 protrudes upward from the entire periphery of the outer peripheral portion of one surface (upper surface) in the thickness direction of the bottom wall 11. In other words, the housing 1 has a rectangular parallelepiped shape that is flat in the vertical direction, and the concave portion 14 surrounded by the peripheral wall 12 at the center of the upper surface 13 that faces the mating connector 102 out of both surfaces in the vertical direction. Have

  The peripheral wall 12 includes a pair of first peripheral walls 121 and a pair of second peripheral walls 122. The pair of first peripheral walls 121 are portions extending substantially parallel to the third direction (longitudinal direction of the housing 1) of the peripheral wall 12, and are opposed to each other in the left-right direction via the recess 14. The pair of second peripheral walls 122 are portions of the peripheral wall 12 that extend substantially parallel to the second direction (short direction of the housing 1), and face the front-rear direction via the recess 14. The pair of second peripheral walls 122 connects the ends of the pair of first peripheral walls 121 to each other. That is, the housing 1 has a shape in which one opening surface (lower surface) of the rectangular cylindrical peripheral wall 12 having a square cross section is closed by the bottom wall 11.

  The plurality of contacts 2 are held by a pair of first peripheral walls 121 in the housing 1. In the present embodiment, the plurality of contacts 2 are fixed to the pair of first peripheral walls 121 by press-fitting. That is, the plurality of contacts 2 are held in the housing 1 by being pushed into the pair of first peripheral walls 121 from one direction (upward in FIGS. 2A to 3B). Here, 20 contacts 2 are held on each of the pair of first peripheral walls 121. The 20 contacts 2 held by each first peripheral wall 121 are arranged at equal intervals in the longitudinal direction (front-rear direction) of the first peripheral wall 121.

  In other words, the 40 contacts 2 are divided into a pair of contacts, each having 20 contacts. The 20 contacts 2 constituting one contact group are held by one first peripheral wall 121, and the 20 contacts 2 constituting the other contact group are held by the other first peripheral wall 121. That is, the 20 contacts 2 constituting each contact group are arranged in a line along the front-rear direction. Further, the 20 contacts 2 constituting one contact group and the 20 contacts 2 constituting the other contact group are symmetrical with respect to a reference plane that bisects the housing 1 in the left-right direction. Has been placed. In other words, the contacts 2 constituting the pair of contact groups are arranged symmetrically so as to face each other with the recess 14 interposed therebetween.

  As described above, the contact 2 includes the contact portion 21, the base portion 22, the connecting portion 23, and the protruding portion 24. In the present embodiment, the contact 2 further includes a connection portion 25. The contact portion 21, the base portion 22, the connecting portion 23, the protruding portion 24, and the connecting portion 25 are integrally configured without a joint. In a state where the contact 2 is held by the housing 1, the connecting portion 25 protrudes from each end face of the housing 1 in the left-right direction. The connection portion 25 protrudes from the lower end portion of the housing 1, and the lower surface of the connection portion 25 is located slightly below the lower surface 15 (see FIG. 3A) of the housing 1. Therefore, for example, when the connecting portion 25 is joined to the circuit board 71 by a joining means such as soldering, the circuit board 71 and the contact 2 are electrically and mechanically connected.

  Further, in a state where the contact 2 is held by the housing 1, at least a part of the contact portion 21 protrudes from a pair of surfaces of the pair of first peripheral walls 121 facing each other. In other words, at least a part of the contact portion 21 in the contact 2 protrudes from a pair of inner surfaces facing in the left-right direction among the inner surfaces of the recess 14 in the housing 1. Thereby, in the connected state, the contact portion 21 comes into contact with the mating contact 5, and the connector 101 and the mating connector 102 are electrically connected.

  The contact 2 is made of a conductive metal material, and is made of, for example, a Corson copper alloy or a copper alloy such as phosphor bronze. A plating layer such as gold plating is appropriately formed on the surface of the contact 2. Furthermore, in this embodiment, the contact 2 has elasticity at least at the connecting portion 23. For this reason, in the connected state, at least the connecting portion 23 is elastically deformed, whereby a force in a direction to be pressed against the counterpart contact 5 acts on the contact portion 21, and the contact portion 21 and the counterpart contact 5 are Contact pressure is secured. The configuration of the contact 2 will be described in more detail in the section “(2.3) Contact”.

  The pair of mounting brackets 3 are fixed to both ends of the housing 1 in the front-rear direction. The mounting bracket 3 is made of a metal material, and is made of a copper alloy as an example. The mounting bracket 3 is fixed to the housing 1 in a state where at least a part thereof is embedded in each second peripheral wall 122 of the housing 1. Each mounting bracket 3 has a pair of mounting pieces 31 protruding from both sides in the left-right direction of the housing 1, that is, protruding from the pair of first peripheral walls 121 to both sides in the left-right direction. The pair of attachment pieces 31 protrude from the lower end portion of the housing 1, and the lower surface of the attachment piece 31 is located in the same plane as the lower surface of the connection portion 25.

  The pair of mounting brackets 3 have a function of reinforcing the housing 1 (particularly the second peripheral wall 122). Further, the mounting bracket 3 can be joined to the circuit board 71 by a pair of mounting pieces 31 in the same manner as the connection portion 25 of the contact 2 by, for example, a joining means such as soldering. As a result, the stress generated between the connector 101 and the circuit board 71 can be received by the mounting bracket 3, and the stress applied to the contact 2 can be reduced. In the present embodiment, the connector 101 includes a pair of mounting brackets 3 having a pair of mounting pieces 31, so that a total of four mounting pieces 31 are located at the four corners of the housing 1 in plan view. Therefore, the connector 101 can be attached to the circuit board 71 relatively firmly.

  In the present embodiment, the housing 1 is an insert molded product having the pair of mounting brackets 3 as insert products. Each mounting bracket 3 is formed so that a portion (joining portion) of the mounting piece 31 to be bonded to the circuit board 71 extends substantially in parallel with the circuit board 71. In other words, the thickness direction of the joint portion of each mounting piece 31 coincides with the vertical direction.

  The dimension of the housing 1 in the vertical direction (height direction) is, for example, several [mm] or less. Moreover, the dimension of the front-back direction (longitudinal direction) of the housing 1 is a dozen [mm] as an example. Moreover, the dimension of the left-right direction (short side direction) of the housing 1 is several [mm] as an example. Furthermore, the interval between the plurality of contacts 2, that is, the pitch is, for example, the number of commas [mm].

(2.2) Configuration of mating connector The configuration of the mating connector 102 will be described below.

  In the present embodiment, as described above, the mating connector 102 is a header that can be electrically connected to the connector 101 as a socket, and, as shown in FIGS. Here, 40 contacts) 5 are provided. That is, the mating housing 4 is a header housing, and the mating contact 5 is a header contact. In the present embodiment, the mating connector 102 further includes a pair of mating mounting brackets 6 (header mounting brackets).

  The mating housing 4, the plurality of mating contacts 5, and the pair of mating mounting brackets 6 correspond to the housing 1, the plurality of contacts 2, and the pair of mounting brackets 3 in the connector 101, respectively.

  That is, the counterpart housing 4 is a resin molded body and has electrical insulation. The counterpart housing 4 holds a plurality of counterpart contacts 5. The counterpart housing 4 is formed in a rectangular parallelepiped shape that is longer in the front-rear direction than in the left-right direction in plan view. Here, in the connection state in which the mating connector 102 is connected to the connector 101, the mating housing has a shape and size corresponding to the recess 14 so that at least a part of the mating housing 4 fits into the recess 14 of the housing 1. 4 is configured.

  A plurality of mating contacts 5 are held by 20 along each surface of the mating housing 4 in the left-right direction. The plurality of mating contacts 5 are fixed to the mating housing 4 in a state where at least some of the mating contacts 5 are embedded in the mating housing 4. The plurality of mating contacts 5 held by the mating housing 4 are arranged at equal intervals in the longitudinal direction (front-rear direction) of the mating housing 4.

  That is, the 40 mating contacts 5 are divided into a pair of contacts, each having 20 contacts. The 20 mating contacts 5 constituting one contact group and the 20 mating contacts 5 constituting the other contact group are in relation to a reference plane that bisects the mating housing 4 in the left-right direction. Are arranged in plane symmetry.

  As shown in FIG. 3A, the mating contact 5 includes a contact piece 51, a winding piece 52, and a connection piece 53. The contact piece 51, the winding piece 52, and the connection piece 53 are integrally formed without a joint. The contact piece 51 is extended along the height direction of the counterpart housing 4, that is, the vertical direction, and is a portion where the contact portion 21 of the contact 2 contacts in the connected state. The winding piece 52 is a portion protruding from the lower end portion of the contact piece 51 and is formed in a U shape so as to wind the lower end portion of the counterpart housing 4. The connection piece 53 is a portion protruding from the upper end portion of the contact piece 51. The connection piece 53 protrudes from each end face in the left-right direction of the counterpart housing 4 and is formed to extend in the short direction (left-right direction) of the counterpart housing 4. Therefore, for example, when the connection piece 53 is joined to the circuit board 72 by joining means such as soldering, the circuit board 72 and the counterpart contact 5 are electrically and mechanically connected.

  Here, the contact piece 51 has a protrusion 511 and a recess 512 on the surface facing the contact 2 in the connected state. The protrusion 511 has a protrusion amount that increases toward the top. The recess 512 is formed above the protrusion 511 and at a position corresponding to the contact portion 21 of the contact 2 in the connected state.

  According to the above-described configuration, when the counterpart housing 4 is pushed into the recess 14 of the housing 1 during the transition from the non-connected state (released state) to the connected state (coupled state), the contact 2 of the connector 101 The contact portion 21 gets over the protrusion 511 and fits into the recess 512. Therefore, at the time of transition from the connected state to the non-connected state, the mating housing 4 is removed from the concave portion 14 of the housing 1 with a certain force that allows the contact portion 21 to escape from the recess 512 and get over the protrusion 511. Need to pull out. Thus, the protrusion 511 and the recess 512 constitute a lock mechanism that can maintain the connection state between the connector 101 and the mating connector 102.

  The mating contact 5 is made of a conductive metal material, and is made of a copper alloy such as a Corson copper alloy or phosphor bronze as an example. A plating layer such as gold plating is appropriately formed on the surface of the mating contact 5.

  The pair of counterpart mounting brackets 6 are fixed to both ends of the counterpart housing 4 in the front-rear direction. The counterpart mounting bracket 6 is made of a metal material, and is made of a copper alloy as an example. The counterpart mounting bracket 6 is fixed to the counterpart housing 4 in a state where at least a part thereof is embedded in the counterpart housing 4.

  The pair of mating fittings 6 has a function of reinforcing the mating housing 4. Similarly to the connection piece 53 of the counterpart contact 5, the counterpart mounting bracket 6 can be joined to the circuit board 72 by a joining means such as soldering. Thereby, the stress generated between the mating connector 102 and the circuit board 72 can be received by the mating mounting bracket 6, and the stress applied to the mating contact 5 can be reduced.

  In the present embodiment, the mating housing 4 is an insert-molded product having a plurality of mating contacts 5 and a pair of mating mounting brackets 6 as insert products.

  The protrusions 511 or the recesses 512 formed on the counterpart contact 5 (header side contact) may be omitted as appropriate.

(2.3) Contact Hereinafter, the configuration of the contact 2 in the connector 101 will be described in more detail with reference to FIGS. 1A, 1B, 4A, 4B, and 4C. In FIG. 1A and FIG. 1B, only one contact 2 and one counterpart contact 5 are shown in a cut end view showing the same cross section as FIG. 3A and FIG. 3B. FIG. 1A shows a “non-connection state” in which the counterpart connector 102 is not connected to the connector 101, and FIG. 1B shows a “connection state” in which the counterpart connector 102 is connected to the connector 101. Further, in FIG. 1A and FIG. 1B, “hatching” indicating a cross section is omitted.

  As described above, the contact 2 according to the present embodiment includes the contact portion 21, the base portion 22, the connecting portion 23, the protruding portion 24, and the connecting portion 25. In the present embodiment, the contact 2 is made of a strip-shaped plate material having a predetermined thickness (for example, 0.1 [mm] or less), and is formed by subjecting the plate material to bending processing for bending the plate material in the thickness direction. That is, the contact part 21, the base part 22, the connection part 23, the protrusion part 24, and the connection part 25 are integrally configured by a single plate material.

  The contact portion 21 contacts the counterpart contact 5 in the connected state as shown in FIG. 1B. In the present embodiment, as described above, the contact portion 21 contacts the bottom surface of the recess 512 of the counterpart contact 5 by fitting the contact portion 21 into the recess 512 in the connected state. Such a contact portion 21 is opposed to at least a part of the base portion 22 via a gap. In other words, at least a part of the base portion 22 faces the contact portion 21 via a gap. In the present embodiment, at least the facing portion 221 of the base portion 22 faces the contact portion 21 in the left-right direction.

  Further, the contact portion 21 has a protruding portion 211 that protrudes in a direction away from the base portion 22 in the facing direction in which the contact portion 21 and the base portion 22 face each other. In the present embodiment, the contact portion 21 and the base portion 22 face the left-right direction, which is the short direction of the housing 1, so that the facing direction of the contact portion 21 and the base portion 22 is the left-right direction. In the example of FIG. 1A, since the base portion 22 is located on the left side when viewed from the contact portion 21, the protruding portion 211 is convex in a direction away from the base portion 22 in the left-right direction, that is, rightward. In the present embodiment, the contact portion 21 is formed in a substantially V-shape that is opened to the left by bending the plate material at a substantially right angle in the thickness direction. The apex angle portion of the substantially V-shaped contact portion 21 constitutes the protruding portion 211.

  Furthermore, in the present embodiment, as shown in FIG. 4A, the contact surface of the contact portion 21 facing the counterpart contact 5 is formed in a shape in which the center portion of the contact 2 in the short direction protrudes toward the counterpart contact 5. Has been. That is, the cross-sectional shape orthogonal to the longitudinal direction of the contact 2 is formed in a substantially V shape on the surface of the contact portion 21 facing the counterpart contact 5. In other words, the surface of the contact portion 21 facing the mating contact 5 is separated from the base portion 22 with the protrusion 211 as the apex in both the cross-sectional shape perpendicular to the vertical direction and the cross-sectional shape perpendicular to the front-rear direction. It is formed in a substantially triangular shape that is convex in the direction. In other words, the contact portion 21 has a tapered shape toward the counterpart contact 5, and more specifically has a substantially quadrangular pyramid shape with the protruding portion 211 as a vertex. Thereby, even when a foreign object is caught between the contact portion 21 and the counterpart contact 5, the contact between the contact portion 21 and the counterpart contact 5 can be reliably ensured.

  At least a part of the base portion 22 (opposing portion 221 in the present embodiment) opposes the contact portion 21 via a gap. The contact 2 is held by the housing 1 at the base 22. In the present embodiment, the base 22 is fixed to the first peripheral wall 121 (see FIG. 3A) in the housing 1 by press fitting.

  Specifically, the base 22 includes a pair of leg pieces 22a and 22b extending substantially parallel to the vertical direction, and a connecting piece 22c that connects the upper ends of the pair of leg pieces 22a and 22b. The base 22 is formed in a substantially U-shape that is opened downward by the pair of leg pieces 22a and 22b and the connecting piece 22c. The base 22 having such a shape is fixed to the first peripheral wall 121 in a state where the first peripheral wall 121 is sandwiched between the pair of leg pieces 22a and 22b by being pushed into the first peripheral wall 121 from above. . Here, the dimension (width dimension) in the short direction of the base portion 22 is set larger than that of the contact portion 21, the connecting portion 23, the protruding portion 24, and the connecting portion 25. On the other hand, grooves for accommodating the pair of leg pieces 22a and 22b are respectively formed on both surfaces of the first peripheral wall 121 in the thickness direction (left and right direction). Since the width dimension of each groove is set to be smaller than the dimension in the short direction of the base portion 22, the base portion 22 is fixed to the first peripheral wall 121 by press-fitting. That is, the base 22 is fixed to the housing 1 such that at least a pair of leg pieces 22 a and 22 b is embedded in the groove of the first peripheral wall 121.

  Here, the base 22 has a facing portion 221 that faces the protruding portion 24. In the present embodiment, the facing portion 221 is one of the leg pieces 22a located on the center side in the short direction of the housing 1, that is, on the inner surface side of the recess 14 (see FIG. 3A), of the pair of leg pieces 22a and 22b. Consists of parts.

  The protruding portion 211 of the contact portion 21 and the facing portion 221 of the base portion 22 are located on a straight line L1 (see FIG. 4B) along the facing direction (left-right direction) of the contact portion 21 and the base portion 22. In other words, the facing portion 221, the protruding portion 24, and the protruding portion 211 are arranged side by side on a straight line L1 extending in the left-right direction, and the protruding portion 24 is located between the facing portion 221 and the protruding portion 211.

  The connecting portion 23 connects the contact portion 21 and the base portion 22. In this embodiment, the connection part 23 connects the lower end part of the leg piece 22a located in the center side of the transversal direction of the housing 1 and the lower end part of the contact part 21 among a pair of leg pieces 22a and 22b. . The connecting portion 23 is formed in a substantially U shape opened upward. In other words, the connecting portion 23 has a folded portion 231 that protrudes downward. The folded portion 231 is formed in a substantially semicircular arc shape that protrudes downward. The folded portion 231 includes an arm portion 232 connected to the contact portion 21, and supports the contact portion 21 so that the arm portion 232 is separated from the base portion 22. The connecting portion 23 has elasticity at least at the turned-up portion 231 and can be elastically deformed so that at least the radius of curvature of the turned-up portion 231 is reduced, that is, the interval between the contact portion 21 and the base portion 22 is reduced.

  That is, when the folded portion 231 acts as a spring and a force that pushes the contact portion 21 toward the base portion 22 acts on the contact portion 21, at least the folded portion 231 is elastically deformed and the contact portion 21 moves in a direction approaching the base portion 22. The contact 2 has the shape shown in FIG. 1B. On the other hand, when the force that pushes the contact portion 21 toward the base portion 22 side is released, the contact portion 21 moves away from the base portion 22 due to the elastic force (restoring force) of the folded portion 231, and the contact 2 is shown in FIG. It becomes the shape shown.

  The protruding portion 24 protrudes from the contact portion 21 toward the base portion 22 in the facing direction in which the contact portion 21 and the base portion 22 face each other. In the present embodiment, as described above, the facing direction of the contact portion 21 and the base portion 22 is the left-right direction. In the example of FIG. 1A, since the base 22 is located on the left side when viewed from the contact portion 21, the protruding portion 24 protrudes from the contact portion 21 to the base 22 side in the left-right direction, that is, the left side. Here, in a non-connected state as shown in FIG. 1A, that is, in a state where the contact portion 21 is not in contact with the counterpart contact 5, the protruding portion 24 faces the facing portion 221 with a gap.

  Specifically, the protruding portion 24 is connected to the upper end portion of the contact portion 21. The protruding portion 24 has a substantially V-shaped bent portion 241 that protrudes upward. In the present embodiment, the folded portion 231 of the connecting portion 23 is located below the bent portion 241. In other words, the protruding portion 24 has a bent portion 241 that is convex in the direction away from the connecting portion 23 (upward). Moreover, the connection part 23 has the folding | returning part 231 which becomes convex in the direction away from the bending part 241 (downward). The bent portion 241 has a larger curvature than the folded portion 231. That is, when the substantially semicircular arc-shaped folded portion 231 and the substantially V-shaped bent portion 241 are compared, the bent portion 241 has a larger curvature. In other words, the radius of curvature of the bent portion 241 is smaller than the radius of curvature of the folded portion 231.

  Moreover, in this embodiment, the protrusion part 24 further has the extension piece 242 extended below from the edge part on the opposite side to the contact part 21 in the substantially V-shaped bending part 241. FIG. The extension piece 242 includes a portion extending downward from the bent portion 241 in parallel with the base portion 22 and a portion extending obliquely downward so as to gradually widen the distance from the distal end (lower end) to the base portion 22. Here, the protruding portion 24 faces the facing portion 221 of the base portion 22 at least in a portion of the extension piece 242 that is substantially parallel to the base portion 22. With such a shape, the protrusion 24 has a minimum distance from the base 22 in the left-right direction at a portion of the extension piece 242 that is substantially parallel to the base 22. In other words, at least a portion of the base portion 22 that has a minimum distance to the protruding portion 24 in the direction facing the protruding portion 24 constitutes the facing portion 221.

  The protruding portion 24 has elasticity at least at the bent portion 241 and can be elastically deformed in a direction in which at least the radius of curvature of the bent portion 241 is reduced, that is, the interval between the extension piece 242 and the contact portion 21 is reduced. .

  The opposing surface of the protruding portion 24 that faces the opposing portion 221 includes a flat surface 243. On the other hand, the facing surface facing the protruding portion 24 in the facing portion 221 includes a base-side flat surface 222. Therefore, the protruding portion 24 and the facing portion 221 face each other such that the flat flat surface 243 and the base-side flat surface 222 abut each other.

  With the configuration as described above, the base portion 22, the connecting portion 23, the contact portion 21, and the protruding portion 24 are joined together so as to form an energization path R <b> 0 along one plane, as shown in FIG. 1A. . One end portion (lower end portion) of the contact portion 21 in the extending direction of the energization path R0 is coupled to the connecting portion 23, and the other end portion (upper end portion) is coupled to the protruding portion 24. In other words, the contact 2 made of a single plate material forms a continuous energization path R0 that passes through the base portion 22, the connecting portion 23, the contact portion 21, and the protruding portion 24 in this order. “One plane” in the present disclosure is a virtual plane, and in the present embodiment, is a plane orthogonal to the longitudinal direction (front-rear direction) of the housing 1.

  4B and 4C, the height of the protruding portion 24 viewed from the connecting portion 23 in the height direction (vertical direction) intersecting the facing direction of the contact portion 21 and the base portion 22 in the one plane. The height dimension H <b> 2 is smaller than the height dimension H <b> 1 of the base portion 22 as viewed from the connecting portion 23. Here, both height dimensions H1 and H2 are based on the lower end of the connecting portion 23, the height dimension H1 is the distance from the lower end of the connecting portion 23 to the upper end of the base portion 22, and the height dimension H2 is The distance from the lower end of the connecting portion 23 to the upper end of the protruding portion 24. In short, in the present embodiment, the upper end of the protruding portion 24 is at a lower position (downward) than the upper end of the base portion 22.

  The connection part 25 is electrically connected to the base part 22. As described above, the connecting portion 25 is a portion that is joined to the circuit board 71 by a joining means such as soldering. In other words, the contact 2 can be connected to the circuit board 71 at the connection portion 25. Here, as shown in FIG. 1A, the base portion 22 is located between the connecting portion 25 and the connecting portion 23 on the energization path R0. That is, one end portion of the base portion 22 in the extending direction of the energization path R <b> 0 is coupled to the connection portion 25, and the other end portion is coupled to the connection portion 23. Specifically, the connecting portion 25 is coupled to the lower end portion of the leg piece 22b located on the opposite side of the pair of leg pieces 22a and 22b from the center in the short direction of the housing 1. More specifically, the connecting portion 25 is substantially orthogonal to the leg piece 22b on the side opposite to the leg piece 22b from the lower end of the leg piece 22b in the opposing direction (left-right direction) of the pair of leg pieces 22a and 22b. It is formed to extend. In other words, the corner portion between the leg piece 22b and the connecting portion 25 is formed by bending the plate material constituting the contact 2 substantially at right angles to the thickness direction thereof. The connecting portion 25 extends substantially parallel to the circuit board 71 and is joined to the circuit board 71 with its lower surface (a surface facing the circuit board 71) in contact with the circuit board 71. The front end surface of the connecting portion 25 extending from the leg piece 22b (the end surface opposite to the leg piece 22b) is substantially orthogonal to the surface of the circuit board 71. In other words, the contact 2 made of a single plate material forms a continuous energization path R0 that passes through the connecting portion 25, the base portion 22, the connecting portion 23, the contact portion 21, and the protruding portion 24 in this order.

  Furthermore, the dimension (width dimension) in the short direction of the contact 2 is not uniform in the contact portion 21, the base portion 22, the connecting portion 23, the protruding portion 24, and the connecting portion 25, and is different depending on each part as described below. . That is, as shown in FIG. 4C, the width dimension of the contact 2 is roughly divided into four stages of width dimensions W1, W2, W3, and W4. The relative relationship between the four width dimensions W1, W2, W3, and W4 is represented by “W1 <W2 <W3 <W4”. And each width dimension of the contact part 21, the connection part 23, the protrusion part 24, and the connection part 25 is the minimum width dimension W1 among the width dimensions W1, W2, W3, and W4. On the other hand, the width dimension of at least the connecting piece 22c in the base portion 22 is the width dimension W2 (> W1). The width dimension of the leg piece 22a in the base portion 22 is basically the width dimension W2 as in the connection piece 22c, but the width dimension of the central portion in the longitudinal direction (vertical direction) of the leg piece 22a is the width dimension W3 (> W2). Further, the width dimension of the leg piece 22b in the base portion 22 is the maximum width dimension W4 (> W3) among the width dimensions W1, W2, W3, and W4. That is, among the base portion 22, the width dimension of each part is set so that the width dimension becomes smaller in the order of the leg piece 22b, the leg piece 22a, and the connecting piece 22c. It is fixed to the first peripheral wall 121 (see FIG. 3A) by press-fitting.

  By the way, in the contact 2 according to the present embodiment, at least in the “connected state”, as shown in FIG. 1B, the second path including the protruding portion 24 is a path different from the first path R1 including the connecting portion 23. At R2, the contact portion 21 is electrically connected to the facing portion 221. Since the contact portion 21 and the base portion 22 are connected by the connecting portion 23, the contact portion 21 and the facing portion 221 of the base portion 22 are always electrically connected via the first path R1 including the connecting portion 23. It is connected. 1st path | route R1 is a path | route which connects between the contact part 21 and the opposing part 221 among the electricity supply path | route R0 (refer FIG. 1A) mentioned above. Further, at least in the “connected state”, that is, in a state where the mating connector 102 is connected to the connector 101, the contact portion 21 and the facing portion 221 are electrically connected via the second route R2 in addition to the first route R1. Connected. The second route R <b> 2 is a route different from the first route R <b> 1 including the connecting portion 23, and does not include the connecting portion 23 and includes the protruding portion 24.

  In the present embodiment, in the connected state as shown in FIG. 1B, the projecting portion 24 is electrically connected to the facing portion 221 by contacting the facing portion 221. In other words, a portion of the base portion 22 that is in contact with the protruding portion 24 at least in the connected state constitutes the facing portion 221. That is, in the non-connected state as shown in FIG. 1A, as described above, the protruding portion 24 faces the facing portion 221 with a gap, and the protruding portion 24 and the facing portion 221 are not connected. In contact. Therefore, in the non-connected state, only the first path R1 is formed between the contact part 21 and the facing part 221, and the second path R2 is not formed. On the other hand, in the connected state, a force that pushes the contact portion 21 toward the base portion 22 acts on the contact portion 21 from the counterpart contact 5, the connecting portion 23 is elastically deformed, and the contact portion 21 approaches the base portion 22. Move in the direction. Along with this, the projecting portion 24 also moves in a direction approaching the base portion 22, and the projecting portion 24 contacts the facing portion 221 as shown in FIG. 1B. Therefore, in the connected state, the projecting portion 24 and the facing portion 221 are directly conducted without passing through the connecting portion 23, and the second path R2 is formed between the contact portion 21 and the facing portion 221. Is done.

  In short, at least in the “connected state”, a second path R2 that is a path different from the first path R1 and includes the protruding portion 24 is formed between the contact portion 21 and the facing section 221. The first path The contact portion 21 is electrically connected to the facing portion 221 not only in R1 but also in the second path R2. Therefore, at least in the “connected state”, the electrical resistance between the contact portion 21 and the base portion 22 (opposing portion 221) is smaller than the configuration in which the contact portion 21 is electrically connected to the facing portion 221 only in the first path R1. Become. As a result, in the contact 2, the connector 101 including the contact 2, and the connection device 100 including the contact 2 according to the present embodiment, the electrical resistance can be suppressed to a small value. In FIG. 1A and FIG. 1B, the dotted lines indicating the energization path R0, the first path R1, and the second path R2 pass through the center of the contact 2 in the thickness direction, but only conceptually represent each path. This does not mean that the position where the current flows is limited to the center of the contact 2 in the thickness direction.

  In addition, in the present embodiment, as described above, the protruding portion 211 of the contact portion 21 and the facing portion 221 of the base portion 22 are a straight line L1 along the facing direction (left-right direction) of the contact portion 21 and the base portion 22 (see FIG. 4B). Due to such a positional relationship, in the connected state, the pressure F <b> 2 acts on the facing portion 221 from the protruding portion 24 along the direction of the force F <b> 1 that the contact portion 21 receives from the counterpart contact 5. That is, in the connected state, the contact portion 21 receives a force F1 from the counterpart contact 5 in a direction approaching the base portion 22 along the left-right direction (leftward in FIG. 1B). Thereby, the protrusion part 24 is pressed against the opposing part 221 with the pressure F2 of the same direction as the force F1 (left direction in FIG. 1B). Therefore, a sufficient contact pressure between the protruding portion 24 and the facing portion 221 can be ensured.

  In the present embodiment, in the connection state as shown in FIG. 1B, the path length between the contact part 21 and the connection part 25 is shorter via the second path R2 than via the first path R1. That is, in the connected state, the contact portion 21 and the connection portion 25 are electrically connected through two routes, a route that passes through the first route R1 and a route that passes through the second route R2. . When the path lengths of these routes are compared, the latter (second route R2) is shorter than the former (via the first route R1). In other words, in the connected state, a current path can be short-circuited by a current flowing through the second path R <b> 2 between the contact part 21 and the connection part 25. Therefore, according to the above-described configuration, the contact 2 (particularly the connecting portion 23) is secured to a certain length while ensuring a sufficient contact pressure between the contact 2 and the counterpart contact 5. The electric resistance of 2 itself is suppressed small.

  Here, since the second path R2 is a path formed by the protruding portion 24 coming into contact with the facing portion 221, the second path R2 includes a contact resistance between the protruding portion 24 and the facing portion 221. It is out. In the present embodiment, even if this contact resistance is taken into account, the electrical resistance between the contact portion 21 and the connection portion 25 is smaller on the route via the second route R2 than on the route via the first route R1.

(3) Modification Example 1 is only one of various embodiments of the present disclosure. The first embodiment can be variously modified according to the design or the like as long as the object of the present disclosure can be achieved. Hereinafter, modifications of the first embodiment will be listed. Since the basic configuration of the modified example described below is common to the connector 101 or the connection device 100 of the first embodiment, description of common points may be omitted. The modifications described below can be applied in appropriate combinations.

  The shape of the protrusion 24 in the contact 2 is not limited to the shape described above, and can be changed as appropriate, for example, as illustrated in FIGS.

  In the example of FIG. 5A, the protruding portion 24 has a substantially U-shaped bent portion 241 opened downward instead of the substantially V-shaped bent portion 241 protruding upward. In the example of FIG. 5B, the projecting portion 24 is formed by extending one side of the projecting portion 24 side of the substantially V-shaped contact portion 21 obliquely upward and extending the upper end portion of the extension piece 242 straight upward. It has the shape which makes the bending part 241 the intersection of these. In the example of FIG. 5C, the protruding portion 24 is a portion extended upward from a tip portion in which the bent portion 241 is omitted and one side of the protruding portion 24 side of the substantially V-shaped contact portion 21 extends straight upward. Constitutes the extension piece 242. 5A to 5C, compared to the contact 2 according to the first embodiment, it is difficult to keep the height dimension H2 of the protruding portion 24 viewed from the connecting portion 23 small in the height direction (vertical direction). . In other words, in the contact 2 according to the first embodiment, the protruding portion 24 shares a side with the one side of the protruding portion 24 side of the substantially V-shaped contact portion 21 and has a substantially V-shape that protrudes upward. By having the bent part 241, the height dimension H2 of the protrusion part 24 seen from the connection part 23 is made small. 5A and 5B, since the contact area between the protruding portion 24 and the facing portion 221 is larger in the connected state than the contact 2 according to the first embodiment, the protruding portion 24 in the second path R2 The contact resistance with the facing portion 221 can be kept small.

  In the example of FIG. 5D, the extension piece 242 is omitted from the protruding portion 24. In this configuration, the contact area between the protruding portion 24 and the facing portion 221 in the connected state is smaller than that of the contact 2 according to the first embodiment. Therefore, the distance between the protruding portion 24 and the facing portion 221 in the second path R2 is small. It is difficult to keep contact resistance small. 5C and 5D, compared with the contact 2 according to the first embodiment, the total length of the contact 2 can be shortened, and the material necessary for the contact 2 can be reduced.

  In the connector 101 according to the first embodiment, the electrical connection with the mating connector 102 is not limited to the contact 2 and may be performed by the mounting bracket 3. That is, when the mounting bracket 3 comes into contact with the mating mounting bracket 6 of the mating connector 102, the electrical connection between the connector 101 and the mating connector 102 is established between the mounting bracket 3 and the mating mounting bracket 6. It may be done. Further, the number of mounting brackets 3 is not limited to a pair (two) and can be increased or decreased as appropriate. For example, the connector 101 may include one or three or more mounting brackets 3. When the number of the mounting brackets 3 is one, the mounting bracket 3 is disposed only on one second peripheral wall 122 in the housing 1, for example. Furthermore, the mounting bracket 3 is not an essential component for the connector 101, and the mounting bracket 3 can be omitted as appropriate.

  Further, the number of mounting pieces 31 in each mounting bracket 3 is not limited to a pair (two) but can be increased or decreased as appropriate. For example, each mounting bracket 3 has one or three or more mounting pieces 31. It may be. For example, even when each mounting bracket 3 has only one mounting piece 31, the mounting bracket 3 is positioned at the four corners of the housing 1 in plan view. It will be located at the four corners of the housing 1 in plan view. When each mounting bracket 3 has three or more mounting pieces 31, the connector 101 can be more firmly attached to the circuit board 71.

  In the first embodiment, the connector 101 includes 40 contacts 2, but the number of contacts 2 is not limited to 40. Further, the plurality of contacts 2 are not limited to the configuration in which the plurality of contacts 2 are divided into a pair of contact groups and arranged in two rows, and may be arranged in one row. In the first embodiment, the plurality of contacts 2 are arranged at an equal pitch. However, the present invention is not limited to this configuration, and the contacts 2 may be arranged at an uneven pitch.

  The contact 2 is not limited to a copper alloy such as a Corson copper alloy or phosphor bronze, but may be made of other conductive materials. Further, in the first embodiment, a plating layer is formed on the surface of the contact 2, but the plating layer is not an essential component for the contact 2 and can be omitted as appropriate.

  Further, the facing surface of the protruding portion 24 that faces the facing portion 221 is not limited to the flat surface 243, and may include, for example, a curved surface that protrudes toward the facing portion 221.

  In the first embodiment, the protruding portion 24 faces the facing portion 221 through a gap in the non-connected state. However, the configuration is not limited to this, and the protruding portion 24 contacts the facing portion 221 in the non-connected state. It may be. Since the protruding portion 24 has elasticity at least at the bent portion 241 as described above, even when the protruding portion 24 comes into contact with the facing portion 221 even in a disconnected state, the protruding portion 24 is A contact pressure between the facing portion 221 can be secured. In the connected state, when the contact portion 21 receives a force from the counterpart contact 5, the protruding portion 24 is further pressed against the facing portion 221, and the contact pressure between the protruding portion 24 and the facing portion 221 increases.

  In the first embodiment, the housing 1 has a shape that is longer in the direction (front-rear direction) in which the pair of second peripheral walls 122 are opposed than in the direction in which the pair of first peripheral walls 121 are opposed (left-right direction). It is not limited to the configuration. For example, the housing 1 may have a longer shape in the direction in which the pair of first peripheral walls 121 face each other than the direction in which the pair of second peripheral walls 122 face each other, or may have a square shape in plan view.

  In the first embodiment, the contact 2 has elasticity in at least the connecting portion 23. However, the present invention is not limited to this configuration. For example, the contact 2 has elasticity in the base 22 or the contact portion 21 other than the connecting portion 23. You may do it.

  In the first embodiment, the housing 1 is integrated with the mounting bracket 3 by insert molding. However, the mounting bracket 3 may be fixed to the housing 1 by press-fitting as in the case of the contact 2. On the contrary, the housing 1 is insert-molded with the contact 2 as an insert, so that the contact 2 can be fixed to the housing 1 in a state where at least a part thereof is embedded in the housing 1 in the same manner as the mounting bracket 3. Good.

  Further, the joining means between the connector 101 and the circuit board 71 and the joining means between the mating connector 102 and the circuit board 72 are not limited to soldering, and may be, for example, conductive paste or pressure bonding.

  In the connection device 100 according to the first embodiment, the connector 101 is a socket and the mating connector 102 is a header. However, the present invention is not limited to this. That is, in the connection device 100, the connector 101 may be a header and the mating connector 102 may be a socket. Further, both the header and the socket constituting the connection device 100 are in contact with each other in the second path R2 including the protruding portion 24, which is a path different from the first path R1 including the connecting portion 23, at least in the connected state. The portion 21 may include a contact 2 that is electrically connected to the facing portion 221.

(Embodiment 2)
As shown in FIGS. 6A to 7B, the connecting device 100A according to the present embodiment is different from the connecting device 100 according to the first embodiment in the specific shapes of the connector 101A and the mating connector 102A. Hereinafter, configurations similar to those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and description thereof may be omitted as appropriate.

  In the present embodiment, the connector 101A includes a housing 1A and a plurality of (here, 40) contacts 2A. The connector 101A does not include the mounting bracket 3 (see FIG. 2A).

  Similar to the housing 1 in the first embodiment, the housing 1A has a concave portion 14A in the central portion of the upper surface 13A that is a surface facing the mating connector 102A among the both surfaces in the vertical direction.

  The plurality of contacts 2A are held in the housing 1A by press-fitting. The 20 contacts 2A constituting one contact group and the 20 contacts 2A constituting the other contact group are arranged symmetrically with respect to a reference plane that bisects the housing 1A in the left-right direction. ing.

  The mating connector 102A includes a mating housing 4A and a plurality of (here, 40) mating contacts 5A. The mating connector 102A does not include the mating mounting bracket 6 (see FIG. 2A).

  In the connected state where the mating connector 102A is connected to the connector 101A, the mating housing 4A is configured in a shape and dimensions corresponding to the recess 14A so that at least a part of the mating housing 4A fits into the recess 14A of the housing 1A. Has been.

  Here, the housing 1A has a first restricting portion 11A for preventing reverse mating of the mating connector 102A with respect to the connector 101A at at least one corner on the inner surface of the recess 14A. In the example of FIG. 6A, first restriction portions 11 </ b> A each having a tapered surface are formed at two corners on the right front and right rear in plan view. On the other hand, the mating housing 4A has a second restricting portion 41A for preventing reverse mating of the mating connector 102A with respect to the connector 101A at at least one corner on the outer surface of the portion that fits into the recess 14A of the housing 1A. is doing. In the example of FIG. 6A, in a plan view, second restriction portions 41A each having a tapered surface are formed at two corners on the right front side and the right rear side.

  The first restricting portion 11A is formed asymmetric with respect to the center point of the housing 1A in plan view. The second restricting portion 41A is formed asymmetric with respect to the center point of the counterpart housing 4A in plan view. Thus, when the mating connector 102A is combined with the connector 101A in the opposite direction to the normal direction, the mating housing 4A does not fit into the recess 14A of the housing 1A, and the mating connector 102A is reversely assembled to the connector 101A. Is prevented. In the present disclosure, “reverse assembly” means that the mating connector 102A is combined with the connector 101A in the opposite direction to the normal direction. Specifically, the mating connector 102A is moved back and forth from the state shown in FIG. 6A. It means being combined with the connector 101A in a reversed state.

  The plurality of mating contacts 5A are held in the mating housing 4A by press-fitting. The 20 mating contacts 5A constituting one contact group and the 20 mating contacts 5A constituting the other contact group are in relation to a reference plane that bisects the mating housing 4A in the left-right direction. Are arranged in plane symmetry.

  As shown in FIG. 7A, the contact 2A includes a contact portion 21A, a base portion 22A, a connecting portion 23A, a protruding portion 24A, and a connecting portion 25A. The contact portion 21A, the base portion 22A, the connecting portion 23A, the protruding portion 24A, and the connecting portion 25A are integrally formed without a joint. In a state where the contact 2A is held by the housing 1A, the connecting portion 25A protrudes from each end face in the left-right direction of the housing 1A. For example, the connection portion 25A is joined to the circuit board 71 by a joining means such as soldering, whereby the circuit board 71 and the contact 2A are electrically and mechanically connected.

  Furthermore, in a state where the contact 2A is held by the housing 1A, at least a part of the contact portion 21A of the contact 2A protrudes from a pair of inner surfaces facing in the left-right direction among the inner surfaces of the recess 14A in the housing 1A. . Thereby, in the connected state, the contact portion 21A comes into contact with the mating contact 5A, and the connector 101A and the mating connector 102A are electrically connected.

  In the present embodiment, the connecting portion 23A connects the upper end portion of the base portion 22A and the upper end portion of the contact portion 21A. The connecting portion 23A is formed in a substantially U shape opened downward. The protruding portion 24A is connected to the lower end portion of the contact portion 21A. The protruding portion 24A has a substantially U-shaped bent portion 241A that protrudes downward. The base 22A has a facing portion 221A that faces the protruding portion 24A.

  In the contact 2A, in a non-connected state as shown in FIG. 7A, the protruding portion 24A faces the facing portion 221A via a gap, and the protruding portion 24A and the facing portion 221A are not in contact with each other. On the other hand, in the connected state as shown in FIG. 7B, the protruding portion 24A comes into contact with the facing portion 221A, so that the protruding portion 24A is electrically connected to the facing portion 221A. That is, in the connected state, a force that pushes the contact portion 21A toward the base portion 22A acts on the contact portion 21A from the counterpart contact 5A, the connecting portion 23A is elastically deformed, and the contact portion 21A moves toward the base portion 22A. To do. Along with this, the protruding portion 24A also moves in a direction approaching the base portion 22A, and the protruding portion 24A comes into contact with the facing portion 221A. Therefore, in the connected state, the projecting portion 24A and the facing portion 221A are directly conducted without going through the connecting portion 23A, and the second path R2 (see FIG. 5) is provided between the contact portion 21A and the facing portion 221A. 1B) is formed.

  Accordingly, even in the connection device 100A according to the present embodiment, at least in the “connected state”, the second route R2 is a route different from the first route R1 including the connecting portion 23A (see FIG. 1B) and including the protruding portion 24A. (See FIG. 1B), the contact portion 21A is electrically connected to the facing portion 221A. As a result, in the contact 2A according to the present embodiment, the connector 101A including the contact 2A, and the connection device 100A including the contact 2A, the electrical resistance can be reduced.

  The various configurations described in the second embodiment can be applied in appropriate combination with the various configurations (including modifications) described in the first embodiment. As an example, the configuration for preventing reverse mating of the mating connector 102A with respect to the connector 101A (the first restricting portion 11A and the second restricting portion 41A) is also applicable to the connection device 100 according to the first embodiment. Specifically, the housing 1 in FIG. 2A has at least one rib as a first restricting portion on a part of the inner surface of the recess 14, and the counterpart housing 4 has a second restriction on a portion of the outer surface. What is necessary is just to have at least 1 groove part as a part. At least one rib as the first restricting portion is formed asymmetric with respect to the center point of the housing 1 in plan view. At least one groove as the second restricting portion is formed asymmetric with respect to the center point of the counterpart housing 4 in plan view. Thus, when the mating connector 102 is combined with the connector 101 in the opposite direction to the normal direction, the mating housing 4 does not fit into the recess 14 of the housing 1 and the mating connector 102 is reversely assembled to the connector 101. Is prevented. The relation between the rib and the groove portion may be reversed, that is, the first restricting portion may be at least one groove portion and the second restricting portion may be at least one rib.

(Embodiment 3)
As shown in FIGS. 8A and 8B, the connection device 100B according to the present embodiment is different from the connection device 100 according to the first embodiment in the specific shapes of the connector 101B and the mating connector 102B. Hereinafter, configurations similar to those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and description thereof may be omitted as appropriate.

  In the present embodiment, the connector 101B contacts the counterpart contact 5B of the counterpart connector 102B at two locations of the first contact portion (contact portion 21B) and the second contact portion (contact portion 26B) for each contact 2B. This is a two-point contact type connector. If it is a two-point contact type connector, it is possible to further reduce the height by suppressing the vertical dimension, that is, the protruding dimension from the circuit board 71, while ensuring the electrical connection reliability. is there.

  In the present embodiment, the connector 101B includes a housing 1B and a plurality of contacts 2B.

  The housing 1B has a pair of recesses 14B arranged in the left-right direction on the upper surface 13B, which is the surface facing the mating connector 102B, of the both surfaces in the vertical direction.

  The plurality of contacts 2B are held by the housing 1B. The plurality of contacts 2B constituting one contact group and the plurality of contacts 2B constituting the other contact group are arranged symmetrically with respect to a reference plane that bisects the housing 1B in the left-right direction. ing.

  The mating connector 102B includes a mating housing 4B and a plurality of mating contacts 5B.

  In the connected state where the mating connector 102B is connected to the connector 101B, the mating side has a shape and dimensions corresponding to the pair of recesses 14B so that at least a part of the mating housing 4B fits into the pair of recesses 14B of the housing 1B. A housing 4B is configured.

  The plurality of mating contacts 5B are held by the mating housing 4B. A plurality of mating contacts 5B constituting one contact group and a plurality of mating contacts 5B constituting the other contact group with respect to a reference plane that bisects the mating housing 4B in the left-right direction. Are arranged in plane symmetry.

  As shown in FIG. 8A, the contact 2B includes a (first) contact portion 21B, a base portion 22B, a connecting portion 23B, a protruding portion 24B, a connecting portion 25B, and a (second) contact portion 26B. ing. The contact portion 21B, the base portion 22B, the connecting portion 23B, the projecting portion 24B, the connection portion 25B, and the contact portion 26B are integrally configured without a joint. In the state where the contact 2B is held by the housing 1B, the connecting portion 25B protrudes from each end face in the left-right direction of the housing 1B. For example, the connection portion 25B is joined to the circuit board 71 by a joining means such as soldering, whereby the circuit board 71 and the contact 2B are electrically and mechanically connected.

  In the present embodiment, the connecting portion 23B connects the upper end portion of the base portion 22B and the upper end portion of the contact portion 21B. The connecting portion 23B is formed in a substantially U shape opened downward. The protruding portion 24B is connected to the lower end portion of the contact portion 21B. The protrusion 24B has a protrusion 244B that protrudes toward the base 22B in the left-right direction. The projecting piece 244B is formed in a substantially U shape that is opened in a direction away from the base portion 22B in the left-right direction. Further, the tip end of the protrusion 24B (the end opposite to the contact portion 21B) is connected to the contact portion 26B. The contact portion 21B as the first contact portion and the contact portion 26B as the second contact portion face each other in the left-right direction. In the present embodiment, at least the connecting portion 23B and the protruding portion 24B of the contact 2B have elasticity.

  In a state where the contact 2B is held by the housing 1B, at least a part of the contact portion 21B and the contact portion 26B from the pair of inner surfaces facing each other in the left-right direction among the inner surfaces of the pair of recesses 14B in the housing 1B. Protrudes. Thereby, in the connected state, the contact portion 21B and the contact portion 26B come into contact with the mating contact 5B, and the connector 101B and the mating connector 102B are electrically connected. Specifically, the mating contact 5B is sandwiched between the contact portion 21B and the contact portion 26B by inserting the mating housing 4B holding the mating contact 5B between the contact portion 21B and the contact portion 26B. It is. At this time, the contact portion 21B and the contact portion 26B are pressed against the mating contact 5B by the elasticity of the protruding portion 24B.

  Further, in this contact 2B, in a non-connected state as shown in FIG. 8A, the protruding portion 24B is opposed to the facing portion 221B via a gap at the protruding piece 244B, and the protruding portion 24B and the facing portion 221B are not in contact with each other. It is in the state of. On the other hand, in the connection state as shown in FIG. 8B, the protruding portion 24B contacts the opposing portion 221B with the protruding piece 244B, so that the protruding portion 24B is electrically connected to the opposing portion 221B. That is, in the connected state, a force that pushes the contact portion 21B toward the base portion 22B acts on the contact portion 21B from the counterpart contact 5B, the connecting portion 23B is elastically deformed, and the contact portion 21B moves toward the base portion 22B. To do. Along with this, the protruding piece 244B of the protruding portion 24B also moves in a direction approaching the base portion 22B, and the protruding portion 24B comes into contact with the facing portion 221B at the protruding piece 244B. Therefore, in the connected state, the projecting portion 24B and the facing portion 221B are directly conducted without passing through the connecting portion 23B, and the second path R2 (see FIG. 5) is provided between the contact portion 21B and the facing portion 221B. 1B) is formed.

  Therefore, even in the connection device 100B according to the present embodiment, at least in the “connected state”, the second route R2 is a route different from the first route R1 including the connecting portion 23B (see FIG. 1B) and includes the protruding portion 24B. (See FIG. 1B), the contact portion 21B is electrically connected to the facing portion 221B. As a result, in the contact 2B according to the present embodiment, the connector 101B including the contact 2B, and the connection device 100B including the contact 2B, the electrical resistance can be reduced. In particular, in the two-point contact type connector 101B as in this embodiment, not only the (first) contact portion 21B but also the (second) contact portion 26B and the opposing portion 221B are connected to the first path R1. (See FIG. 1B) and two routes R2 (see FIG. 1B) are formed. Therefore, it is possible to keep the electrical resistance smaller.

  As a modification of the third embodiment, the contact 2Bx may have a configuration in which the protruding portion 24Bx is separated from the facing portion 221Bx by a notch portion 272Bx, as shown in FIGS. 9A and 9B. As shown in FIGS. 9A and 9B, the contact 2Bx includes a (first) contact portion 21Bx, a base portion 22Bx, a connecting portion 23Bx, a protruding portion 24Bx, a connecting portion 25Bx, and a (second) contact portion 26Bx. It is equipped with. These contact portion 21Bx, base portion 22Bx, connecting portion 23Bx, protruding portion 24Bx, connecting portion 25Bx, and contact portion 26Bx are the contact portion 21B, base portion 22B, connecting portion 23B, protruding portion 24B, connecting portion 25B of the contact 2B of the third embodiment. And the contact portion 26B. Further, the protruding piece 244Bx of the protrusion 24Bx corresponds to the protruding piece 244B of the contact 2B of the third embodiment.

  As the manufacturing method of the contact 2Bx, a method of manufacturing the contact 2Bx shown in FIG. 9B directly from a plate material (metal plate) and an intermediate product shown in FIG. And a method of manufacturing the contact 2Bx shown.

  In the former manufacturing method, a notch 272Bx is formed between the projecting portion 24Bx and the facing portion 221Bx, as shown in FIG. 9B, for example, by punching or the like on the plate material (metal plate). A state contact 2Bx is formed. That is, in this contact 2Bx, as shown in FIG. 9B, the protruding piece 244Bx of the protruding portion 24Bx faces the facing portion 221Bx through the notch portion 272Bx.

  In the intermediate product of the contact 2Bx in the latter manufacturing method, as shown in FIG. 9A, the projecting piece 244Bx of the projecting portion 24Bx is connected to the facing portion 221Bx by a joint 271Bx. The projecting piece 244Bx, the joint 271Bx, and the facing portion 221Bx are integrally configured without a joint. The intermediate product of the contact 2Bx is subjected to a process of removing the joint 271Bx by, for example, a punching process, so that a notch 272Bx is formed between the protruding part 24Bx and the facing part 221Bx. The That is, in the contact 2Bx, the protrusion 24Bx and the facing portion 221Bx are formed by forming the notch 272Bx as shown in FIG. 9B with respect to the intermediate product of the contact 2Bx as shown in FIG. 9A.

  According to the configuration of the contact 2Bx according to this modification, the distance (gap) between the protruding portion 24Bx and the facing portion 221Bx can be adjusted by adjusting the size of the notch 272Bx in the manufacturing process of the contact 2Bx. is there.

  The various configurations (including modifications) described in Embodiment 3 can be applied in appropriate combination with the various configurations (including modifications) described in Embodiment 1 or Embodiment 2. For example, in the contact 2 described in the first embodiment, as described as a modification of the third embodiment, a configuration in which the protruding portion 24 is separated from the facing portion 221 at the notch portion can be employed.

(Embodiment 4)
As shown in FIGS. 10A and 10B, the connection device 100C according to the present embodiment is different from the connection device 100 according to the first embodiment in the specific shape of the mating connector 102C. Hereinafter, configurations similar to those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and description thereof may be omitted as appropriate.

  In the present embodiment, the connector 101C includes a housing 1C and a plurality of contacts 2C. Since the housing 1C has the same configuration as the housing 1 of the connector 101 according to the first embodiment, the description thereof is omitted here.

  The contact 2C includes a contact portion 21C, a base portion 22C, a connecting portion 23C, and a protruding portion 24C. The contact portion 21C, the base portion 22C, the connecting portion 23C, and the protruding portion 24C have the same configuration as the contact portion 21, the base portion 22, the connecting portion 23, and the protruding portion 24 of the contact 2 according to the first embodiment. Omitted. In the present embodiment, a portion of the base portion 22C having a minimum distance to the protruding portion 24C in the direction facing the protruding portion 24C constitutes the facing portion 221C.

  The mating connector 102C includes a mating housing 4C and a plurality of mating contacts 5C. Since the counterpart housing 4C has the same configuration as the counterpart housing 4 of the counterpart connector 102 according to the first embodiment, the description thereof is omitted here.

  As shown in FIG. 10A, the mating contact 5C includes a contact piece 51C, a winding piece 52C, a connection piece 53C, and an insertion piece 54C. The contact piece 51C, the winding piece 52C, the connection piece 53, and the insertion piece 54C are integrally formed without a joint. Since the contact piece 51C, the winding piece 52C, and the connection piece 53C have the same configuration as the contact piece 51, the winding piece 52, and the connection piece 53 of the counterpart contact 5 according to the first embodiment, description thereof is omitted here. .

  The insertion piece 54C extends downward from a part of the connection piece 53C. The insertion piece 54C and the contact piece 51C both extend substantially parallel to the vertical direction, and face each other through a gap in the horizontal direction. As an example, the insertion piece 54 </ b> C is formed by cutting and raising a part of a plate material constituting the counterpart contact 5 </ b> C. The insertion piece 54C is a conducting member that is sandwiched between the protruding portion 24C and the facing portion 221C in the connected state.

  In the connection device 100C according to the present embodiment, in the non-connected state as shown in FIG. 10A, the protruding portion 24C faces the facing portion 221C via a gap, and the protruding portion 24C and the facing portion 221C are not in contact with each other. Is in a state. On the other hand, in the connection state as shown in FIG. 10B, the insertion piece 54C is inserted into the gap between the protruding portion 24C and the facing portion 221C, and the insertion piece 54C is inserted between the protruding portion 24C and the facing portion 221C. The piece 54C is sandwiched. In this state, the protruding portion 24C and the insertion piece 54C are in contact with each other, and the opposing portion 221C and the insertion piece 54C are in contact with each other, so that the protruding portion 24C and the opposing portion 221C are electrically connected via the insertion piece 54C. To do. In short, in the connected state, the protruding portion 24C and the opposing portion 221C are indirectly connected via the insertion piece 54C, which is a conductive member, and the conductive member is between the contact portion 21C and the opposing portion 221C. A second path R2 (see FIG. 1B) including the insertion piece 54C is formed.

  As described above, in the connected state, the protruding portion 24C is electrically connected to the facing portion 221C through the conducting member (insertion piece 54C) sandwiched between the protruding portion 24C and the facing portion 221C. Therefore, even in the connection device 100C according to the present embodiment, at least in the “connected state”, the second route R2 is a route different from the first route R1 including the connecting portion 23C (see FIG. 1B) and includes the protruding portion 24C. (See FIG. 1B), the contact portion 21C is electrically connected to the facing portion 221C. As a result, in the contact 2C according to the present embodiment, the connector 101C including the contact 2C, and the connection device 100C including the contact 2C, it is possible to suppress the electric resistance to be small.

  As a modification of the fourth embodiment, in the connected state, the conducting member sandwiched between the protruding portion 24C and the facing portion 221C is not limited to the insertion piece 54C that is a part of the mating contact 5C. A metal member different from the contact 5C may be used. Even in this case, in the connected state, the projecting portion 24C and the facing portion 221C are electrically connected through the conducting member when the conducting member is sandwiched between the projecting portion 24C and the facing portion 221C.

  In the fourth embodiment, the protruding portion 24C faces the facing portion 221C via a gap in the non-connected state, but the configuration is not limited to this, and the protruding portion 24C contacts the facing portion 221C in the non-connected state. It may be.

  The various configurations (including modifications) described in the fourth embodiment can be applied in appropriate combination with the various configurations (including modifications) described in each of the first to third embodiments.

(Embodiment 5)
As shown in FIGS. 11A and 11B, the connection device according to the present embodiment is different from the connection device 100B according to the third embodiment in the specific shape of the contact 2D used in the connector. Hereinafter, configurations similar to those in the third embodiment may be denoted by the same reference numerals as those in the third embodiment, and description thereof may be omitted as appropriate.

  The contact 2D is held in a housing similar to the housing 1B of the connector 101B according to the third embodiment. Here, in the connector according to this embodiment, at least one of the plurality of contacts held by the housing may be the contact 2D shown in FIGS. 11A and 11B.

  As shown in FIG. 11A, the contact 2D includes a (first) contact portion 21D, a base portion 22D, a connecting portion 23D, a protruding portion 24D, a connection portion 25D, and a (second) contact portion 26D. ing. The contact portion 21D, the base portion 22D, the connecting portion 23D, the protruding portion 24D, the connecting portion 25D, and the contact portion 26D are the contact portion 21B, the base portion 22B, the connecting portion 23B, the protruding portion 24B, and the connecting portion 25B of the contact 2B of the third embodiment. And the contact portion 26B.

  The contact 2D has a plurality of combinations (here, three sets) of the contact portion 21D and the contact portion 26D. More specifically, in the contact 2D, a portion from the contact portion 21D to the contact portion 26D is divided into three in the front-rear direction. In other words, the contact 2D has a contact part 21D and a contact part 26D that are divided into three parts, that is, a trifurcated contact part 21D and a contact part 26D. Such a contact 2D is particularly suitable for applications in which a relatively large current flows, such as a power supply terminal.

  In the contact 2D, the protruding portion 24D is provided only between at least one set of the contact portion 21D and the contact portion 26D among the plurality of sets (here, three sets) of the contact portion 21D and the contact portion 26D. That is, at least one set of the contact portion 21D and the contact portion 26D is connected by the protruding portion 24D. The protruding portion 24D is connected to the lower end portion of the contact portion 21D. The protrusion 24D has a protrusion 244D that protrudes toward the base 22D in the left-right direction. The projecting piece 244D is formed in a substantially U shape that is open in a direction away from the base portion 22D in the left-right direction. Furthermore, the tip end of the protrusion 24D (the end opposite to the contact portion 21D) is connected to the contact portion 26D. On the other hand, among a plurality of sets (here, three sets) of contact portions 21D and contact portions 26D, the contact portion 21D and the contact portion 26D have a combination of the contact portion 21D and the contact portion 26D that are not provided with the protruding portion 24D. Directly connected. That is, the lower end portion of the contact portion 21D extends in a direction away from the base portion 22D, and the tip end portion (the end portion on the opposite side of the contact portion 21D) is connected to the contact portion 26D.

  In the example of FIGS. 11A and 11B, the protrusion 24D is provided only between the pair of contact portions 21D and 26D located in the center among the three sets of contact portions 21D and 26D arranged in the front-rear direction. It has been. However, the present invention is not limited to this configuration. For example, as shown in FIG. 12A, of the three sets of contact portions 21D and 26D arranged in the front-rear direction, Protrusions 24D may be provided between them. Further, for example, as shown in FIG. 12B, among the three sets of contact portions 21D and 26D arranged in the front-rear direction, there are protrusions 24D between all (three sets) of the contact portions 21D and 26D. It may be provided.

  In the connection device according to the present embodiment, at least in the “connected state”, the second route R2 (FIG. 1B) is a route different from the first route R1 (see FIG. 1B) including the connecting portion 23D and includes the protruding portion 24D. The contact portion 21D is electrically connected to the facing portion 221D. As a result, in the contact 2D according to the present embodiment, the connector including the contact 2D, and the connection device including the contact 2D, the electrical resistance can be suppressed to a small value. In particular, according to the contact 2D having a plurality of combinations of the contact portion 21D and the contact portion 26D as in the present embodiment, the number of contact points with the mating connector increases, and the electrical resistance can be further reduced.

  As a modification of the fifth embodiment, the contact 2D may have two or four or more combinations of the contact portion 21D and the contact portion 26D.

  The various configurations (including modifications) described in the fifth embodiment can be applied in appropriate combination with the various configurations (including modifications) described in each of the first to fourth embodiments.

(Summary)
As described above, the contacts (2, 2A to 2D) according to the first aspect are contacts of the connectors (101, 101A to 101C) that can be electrically connected to the mating connectors (102, 102A to 102C). . The contacts (2, 2A to 2D) include contact portions (21, 21A to 21D), base portions (22, 22A to 22D), connecting portions (23, 23A to 23D), and protrusions (24, 24A to 24D). And). The contact portions (21, 21A to 21D) can contact the contacts (mating contacts 5, 5A to 5C) of the mating connectors (102, 102A to 102C). At least a part of the base portion (22, 22A to 22D) faces the contact portion (21, 21A to 21D) via a gap. The connecting portions (23, 23A to 23D) connect the contact portions (21, 21A to 21D) and the base portions (22, 22A to 22D). The projecting portions (24, 24A to 24D) are formed from the contact portions (21, 21A to 21D) in the opposing direction in which the contact portions (21, 21A to 21D) and the base portions (22, 22A to 22D) face each other. , 22A to 22D). The base portion (22, 22A to 22D) has a facing portion (221, 221A to 221D) that faces the protruding portion (24, 24A to 24D). At least in the connected state, the contact portions (21, 21A to 21D) are electrically connected to the facing portions (221, 221A to 221D) in the second path (R2). The connection state is a state where the contact portions (21, 21A to 21D) are in contact with the mating contacts (5, 5A to 5C). A 2nd path | route (R2) is a path | route different from the 1st path | route (R1) containing a connection part (23,23A-23D), and contains a protrusion part (24,24A-24D).

  According to this aspect, at least in the connected state, the first path including the connecting portion (23, 23A-23D) between the contact portion (21, 21A-21D) and the facing portion (221, 221A-221D). (R1) and a second route (R2) different from the first route (R1) are formed. Therefore, in the connected state, the contact portions (21, 21A to 21D) are compared to the configuration in which the contact portions (21, 21A to 21D) are electrically connected to the facing portions (221, 221A to 221D) only in the first path (R1). ) And the base (22, 22A to 22D) is reduced. As a result, the electrical resistance can be kept small at the contacts (2, 2A to 2D).

  In the contact (2, 2A to 2D) according to the second aspect, in the first aspect, the protruding parts (24, 24A to 24D) are in contact with the facing parts (221, 221A to 221D) in the connected state. Thereby, protrusion part (24, 24A-24D) conducts with an opposing part (221,221A-221D).

  According to this aspect, the second path (R2) can be easily realized by bringing the projecting portions (24, 24A to 24D) into contact with the facing portions (221, 221A to 221D) in the connected state.

  The contact (2, 2A to 2D) according to the third aspect projects in the state where the contact part (21, 21A to 21D) is not in contact with the counterpart contact (5, 5A to 5C) in the second aspect. The parts (24, 24A to 24D) face the facing parts (221, 221A to 221D) via a gap.

  According to this aspect, the protruding portions (24, 24A to 24D) are in contact with the facing portions (221, 221A to 221D) only in the connected state. Accordingly, the contact (2, 2A to 2D) can be prevented from being sag compared to the configuration in which the protruding portions (24, 24A to 24D) are always in contact with the facing portions (221, 221A to 221D).

  In the contact (2, 2A to 2D) according to the fourth aspect, in the second or third aspect, the contact part (21, 21A to 21D) receives from the counterpart contact (5, 5A to 5C) in the connected state. A pressure (F2) acts on the opposing part (221, 221A-221D) from the projecting part (24, 24A-24D) along the direction of the force (F1).

  According to this aspect, the force (F1) that the contact portions (21, 21A to 21D) receive from the counterpart contacts (5, 5A to 5C) is changed from the protruding portions (24, 24A to 24D) to the facing portions (221, 221A). ˜221D). Therefore, it becomes easy to ensure the contact pressure between the projecting portions (24, 24A to 24D) and the facing portions (221, 221A to 221D).

  The contact (2, 2A to 2D) according to the fifth aspect is sandwiched between the protruding part (24, 24A to 24D) and the facing part (221, 221A to 221D) in the connected state in the first aspect. Through the conducting member, the projecting portions (24, 24A to 24D) are electrically connected to the facing portions (221, 221A to 221D).

  According to this aspect, since the gap between the projecting portion (24, 24A to 24D) and the facing portion (221, 221A to 221D) can be filled with the conductive member, the projecting portion (24, 24A to 24D) and the facing portion. The degree of freedom in designing the dimensions of the gaps with (221, 221A to 221D) increases.

  In the contact (2, 2A to 2D) according to the sixth aspect, in any one of the first to fifth aspects, the contact part (21, 21A to 21D) and the base part (22, 22A to 22D) in the facing direction. Has a protruding portion (211) protruding to the opposite side. The protrusion (211) and the facing portions (221, 221A to 221D) are located on a straight line (L1) along the facing direction.

  According to this aspect, the force that the contact portions (21, 21A to 21D) receive from the counterpart contacts (5, 5A to 5C) is changed from the protruding portions (24, 24A to 24D) to the facing portions (221, 221A to 221D). It works effectively. Therefore, it becomes easy to ensure the contact pressure between the projecting portions (24, 24A to 24D) and the facing portions (221, 221A to 221D).

  In the contact (2, 2A to 2D) according to the seventh aspect, in any one of the first to sixth aspects, the base part (22, 22A to 22D), the connection part (23, 23A to 23D), the contact part (21 , 21A to 21D) and the projecting portions (24, 24A to 24D) are joined together so as to form an energization path (R0) along one plane. One end of the energizing path (R0) in the contact portion (21, 21A to 21D) in the extending direction is coupled to the connecting portion (23, 23A to 23D), and the other end is coupled to the protruding portion (24, 24A to 24D). Has been.

  According to this aspect, the second path (R2) is opposite to the first path (R1) in the extending direction of the energization path (R0) with respect to the contact parts (21, 21A to 21D), and is the facing section. (221, 221A to 221D). Therefore, the size of the contacts (2, 2A to 2D) in the direction orthogonal to one plane can be reduced while providing the first path (R1) and the second path (R2).

  In the contact (2, 2A to 2D) according to the eighth aspect, in the seventh aspect, the protrusions (24, 24A to 24D) are bent so as to protrude away from the connection parts (23, 23A to 23D). Part (241, 241A).

  According to this aspect, it is possible to suppress deformation (plastic deformation) of the contacts (2, 2A to 2D) due to the counterpart contacts (5, 5A to 5C) being hooked on the tips of the protrusions (24, 24A to 24D). is there. That is, when the connector (101, 101A to 101C) and the mating connector (102, 102A to 102C) are connected, the mating contact (5, 5A to 5C) contacts the bent portion (241, 241A). It becomes difficult to get caught in the protrusions (24, 24A to 24D).

  In the contact (2, 2A to 2D) according to the ninth aspect, in the eighth aspect, the connecting portion (23, 23A to 23D) is a folded portion (which is convex in a direction away from the bent portion (241, 241A)). 231). The bent part (241, 241A) has a larger curvature than the folded part (231).

  According to this aspect, the size of the contacts (2, 2A to 2D) in the facing direction in which the contact portions (21, 21A to 21D) and the base portions (22, 22A to 22D) face each other can be reduced.

  In the contact (2, 2A to 2D) according to the tenth aspect, in any one of the seventh to ninth aspects, the connecting portion (23, 23A to 23D) in the height direction intersecting the opposing direction in one plane. The height dimension (H2) of the projecting portion (24, 24A to 24D) viewed from the side is smaller than the height dimension (H1) of the base portion (22, 22A to 22D) viewed from the connecting portion (23, 23A to 23D). .

  According to this aspect, it is easy to suppress deformation (plastic deformation) of the contacts (2, 2A to 2D) due to the mating contacts (5, 5A to 5C) being caught on the tips of the protrusions (24, 24A to 24D). Become. Further, even when the connectors (101, 101A to 101C) are assembled, the deformation (plastic deformation) of the protrusions (24, 24A to 24D) can be easily suppressed.

  The contact (2, 2A to 2D) according to the eleventh aspect is electrically connected to the base (22, 22A to 22D) in any one of the seventh to tenth aspects, and is connected to the circuit board (71). Further, connectable connection portions (25, 25A, 25B, 25D) are further provided. The base portions (22, 22A to 22D) are located between the connection portions (25, 25A, 25B, 25D) and the connection portions (23, 23A to 23D) on the energization path (R0).

  According to this aspect, the base portion (22, 22A to 22D) between the connection portion (25, 25A, 25B, 25D) and the contact portion (21, 21A to 21D) is at least in the connected state, and the second path Conduction with the contact portions (21, 21A to 21D) at (R2). Therefore, the connection portion (25, 25A, 25B, 25D) is compared with the configuration in which the connection portion (25, 25A, 25B, 25D) is electrically connected to the contact portion (21, 21A-21D) only by the first path (R1). And the electrical resistance between the contact portions (21, 21A to 21D) is reduced.

  In the contact (2, 2A to 2D) according to the twelfth aspect, in the eleventh aspect, in the connected state, between the contact part (21, 21A to 21D) and the connection part (25, 25A, 25B, 25D). Is shorter via the second route (R2) than via the first route (R1).

  According to this aspect, in the connected state, current flows through the second path (R2) between the contact portions (21, 21A to 21D) and the connection portions (25, 25A, 25B, 25D). Current path shortcuts are possible. Therefore, the electrical resistance between the connection part (25, 25A, 25B, 25D) and the contact part (21, 21A to 21D) can be further reduced.

  In the contact (2, 2A to 2D) according to the thirteenth aspect, in the aspect of any one of the first to twelfth aspects, the protrusions (24, 24A to 24D) are opposed to the facing parts (221, 221A to 221D). The surface includes a flat surface (243).

  According to this aspect, since the surface contact by the flat surface (243) can be realized between the protruding portion (24, 24A to 24D) and the facing portion (221, 221A to 221D), the second route (R2) It is possible to suppress the contact resistance generated in

  In the contact (2, 2A to 2D) according to the fourteenth aspect, in any one of the first to thirteenth aspects, the opposing part (221, 221A to 221D) is opposed to the protruding part (24, 24A to 24D). The surface includes a base side flat surface (222).

  According to this aspect, since the surface contact by the base side flat surface (222) can be realized between the projecting portions (24, 24A to 24D) and the facing portions (221, 221A to 221D), the second path (R2 ) The contact resistance generated above can be kept small.

  In the contact (2, 2A to 2D) according to the fifteenth aspect, in any one of the first to fourteenth aspects, at least a part of the coupling portion (23, 23A to 23D) has elasticity.

  According to this aspect, the contact pressure between the contact portions (21, 21A to 21D) and the counterpart contact (5, 5A to 5C) can be secured by the elasticity of the connecting portions (23, 23A to 23D).

  A connector (101, 101A to 101C) according to a sixteenth aspect includes a contact (2, 2A to 2D) according to any one of the first to fifteenth aspects and a housing that holds the contact (2, 2A to 2D) ( 1, 1A-1C).

  According to this aspect, at least in the connected state, the first path including the connecting portion (23, 23A-23D) between the contact portion (21, 21A-21D) and the facing portion (221, 221A-221D). (R1) and a second route (R2) different from the first route (R1) are formed. Therefore, in the connected state, the contact portions (21, 21A to 21D) are compared to the configuration in which the contact portions (21, 21A to 21D) are electrically connected to the facing portions (221, 221A to 221D) only in the first path (R1). ) And the base (22, 22A to 22D) is reduced. As a result, the electrical resistance can be kept small in the connectors (101, 101A to 101C).

  The connection device (100, 100A to 100C) according to the seventeenth aspect includes the connector (101, 101A to 101C) according to the sixteenth aspect and the counterpart connector (102, 102A to 102C).

  According to this aspect, at least in the connected state, the first path including the connecting portion (23, 23A-23D) between the contact portion (21, 21A-21D) and the facing portion (221, 221A-221D). (R1) and a second route (R2) different from the first route (R1) are formed. Therefore, in the connected state, the contact portions (21, 21A to 21D) are compared to the configuration in which the contact portions (21, 21A to 21D) are electrically connected to the facing portions (221, 221A to 221D) only in the first path (R1). ) And the base (22, 22A to 22D) is reduced. As a result, in the connection device (100, 100A to 100C), it is possible to suppress the electric resistance to be small.

  About the structure which concerns on the 2nd-15th aspect, it is not an essential structure for a contact (2, 2A-2D), and can be abbreviate | omitted suitably.

1, 1A, 1B, 1C Housing 2, 2A, 2B, 2C, 2D Contacts 5, 5A, 5B, 5C Mating contacts 71, 72 Circuit boards 21, 21A, 21B, 21C, 21D Contact portions 22, 22A, 22B, 22C, 22D Base part 23, 23A, 23B, 23C, 23D Connection part 24, 24A, 24B, 24C, 24D Protrusion part 25, 25A, 25B, 25D Connection part 54C Insertion piece (conduction member)
71, 72 Circuit board 100, 100A, 100B, 100C Connection device 101, 101A, 101B, 101C Connector 102, 102A, 102B, 102C Mating connector 211 Protruding part 221, 221A, 221B, 221C, 221D Opposing part 222 Base side flat Surface 231 Turned portion 241, 241 A Bending portion 243 Flat surface F1 Force F2 Pressure H1 Height dimension H2 Height dimension L1 Straight line R0 Current path R1 First path R2 Second path

Claims (17)

A connector contact that can be electrically connected to the mating connector,
A contact portion capable of contacting the contact of the mating connector;
A base portion at least partially facing the contact portion via a gap;
A connecting part for connecting the contact part and the base part;
A projecting portion projecting from the contact portion to the base side in a facing direction in which the contact portion and the base portion face each other;
The base has a facing portion facing the protruding portion,
In a connected state where at least the contact portion is in contact with the contact of the mating connector, the contact portion is a route different from the first route including the connecting portion and the second route including the protruding portion. Contact that conducts to the opposite part. The contact according to claim 1, wherein, in the connected state, the protruding portion is electrically connected to the facing portion when the protruding portion contacts the facing portion. The contact according to claim 2, wherein the protruding portion faces the facing portion with a gap in a state where the contact portion is not in contact with the contact of the mating connector. 4. The contact according to claim 2, wherein, in the connected state, pressure acts on the facing portion from the protruding portion along a direction of a force that the contact portion receives from the contact of the mating connector. The contact according to claim 1, wherein, in the connected state, the protruding portion is electrically connected to the facing portion through a conductive member sandwiched between the protruding portion and the facing portion. The contact portion has a protrusion protruding to the opposite side of the base in the facing direction;
The contact according to claim 1, wherein the protruding portion and the facing portion are positioned on a straight line along the facing direction. The base portion, the connecting portion, the contact portion, and the protruding portion are joined together so as to form a current-carrying path along one plane.
The contact according to claim 1, wherein one end portion of the contact portion in the extending direction of the energization path is coupled to the connecting portion, and the other end portion is coupled to the protruding portion. The contact according to claim 7, wherein the protruding portion has a bent portion that protrudes in a direction away from the connecting portion. The connecting portion has a folded portion that is convex in a direction away from the bent portion,
The contact according to claim 8, wherein the bent portion has a larger curvature than the folded portion. The height dimension of the projecting portion viewed from the connecting portion in a height direction intersecting the facing direction in the one plane is smaller than the height dimension of the base portion viewed from the connecting portion. The contact according to any one of the above. The base is electrically connected to the base, and further includes a connection that can be connected to the circuit board.
The contact according to any one of claims 7 to 10, wherein the base portion is located between the connection portion and the connection portion on the energization path. The contact according to claim 11, wherein in the connected state, a path length between the contact part and the connection part is shorter via the second path than through the first path. The contact according to any one of claims 1 to 12, wherein a facing surface of the protruding portion that faces the facing portion includes a flat surface. The contact according to any one of claims 1 to 13, wherein a facing surface of the facing portion that faces the protruding portion includes a base-side flat surface. The contact according to claim 1, wherein at least a part of the connecting portion has elasticity. The contact according to any one of claims 1 to 15,
And a housing for holding the contact. A connector according to claim 16;
A connection device comprising the mating connector.

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