TW201841442A - Metal fitting, connector, header, and connector system for reducing the volume ratio relative to the housing - Google Patents

Abstract

The object of the present invention is to reduce the volume ratio relative to the housing. The mounting metal fitting (5) has a mounting member (50). The mounting member (50) is mounted to the housing (1) of the connector (101) having a plurality of contact members (2). The housing (1) has a bottom wall (11) and a peripheral wall (12) surrounding the bottom wall (11). The mounting member (50) has a first mounting piece (51) and a second mounting piece (52). The first mounting piece (51) covers at least one portion of the inner side surface of the peripheral wall (12). The second mounting piece (52) is connected to the first mounting piece (51) and covers at least one part of the connecting surface of the outer side surface and the inner side surface of the peripheral wall (12). The mounting member (50) does not have the portion which clamps the peripheral wall (12) and is located at the opposite side of the first mounting piece (51).

Description

Installation of metal fittings, connectors, plugs and connection systems

The present invention relates generally to mounting metal fittings, connectors, plugs, and connection systems, and more specifically to mounting metal fittings, connectors, plugs, and connection systems that are mounted on a housing of a connector.

Conventionally, a connector known to be useful for electrically connecting electrical components is disclosed in, for example, Document 1 (International Publication No. 2013/031139). The plug (connector) described in Document 1 includes a plug housing (housing) that is formed into a rectangular shape as a whole by insulating synthetic resin. A plurality of plug-side terminals (contacts) are arranged in the plug housing at an equal distance from the longitudinal direction. Furthermore, plug-side holding metal fittings (mounting metal fittings) are arranged at both ends in the longitudinal direction of the plug housing. By mating the plug with the socket (other connector), the plurality of plug-side terminals are electrically connected with the plurality of socket-side terminals (other connector-side contacts). In the conventional mounting metal fittings described above, it is expected to reduce the volume ratio with respect to the case.

The present invention has been made in view of the above problems, and an object thereof is to provide a mounting metal fitting, a connector, a plug, and a connection system capable of reducing a volume ratio with respect to a housing.安装 A mounting metal fitting according to an aspect of the present invention includes a mounting member. The mounting member is mounted on a housing of a connector having a plurality of contacts. The casing has a bottom wall and a surrounding wall surrounding the bottom wall. The mounting member includes a first mounting piece and a second mounting piece. The first mounting piece covers at least a part of an inner surface of the peripheral wall. The second mounting piece is connected to the first mounting piece, and covers at least a part of a connecting surface connecting the outer side surface and the inner side surface of the peripheral wall. The mounting member does not have a portion on the opposite side of the first mounting piece with the peripheral wall therebetween.连接 A connector according to an aspect of the present invention includes the mounting metal fitting, the housing, and the plurality of contacts.插头 A plug according to one aspect of the present invention is a plug of another connector, and is connected to a socket serving as the connector. The plug has a plurality of other connector-side contacts that are electrically connected to the plurality of contacts of the socket.连接 A connection system according to an aspect of the present invention includes the above-mentioned connector and the above-mentioned other connectors. The other connector has a plurality of other connector-side contacts electrically connected to the plurality of contacts.

(1) Overview Hereinafter, the implementation type mounting metal fitting 5 and the connector 101 to which the mounting metal fitting 5 is mounted will be described using FIGS. 1 to 6B. The connector 101 of this embodiment is mounted on a substrate 7 (see FIG. 13) such as a printed wiring board or a flexible wiring board. The connector 101 is used to electrically connect a plurality of substrates 7 mounted on a portable terminal such as a smartphone. Of course, the purpose of limiting the use of the connector 101 is not limited, and the connector 101 may be used in an electronic device other than a portable terminal such as a camera module. Furthermore, the connector 101 is not limited to the use for electrically connecting the plurality of substrates 7, for example, if it is used for electrically connecting the substrate 7 and a display, or between a plurality of parts such as the substrate 7 and a battery, can. The connector 101 includes a housing 1, a plurality of contacts 2, and a mounting metal fitting 5. The housing 1 holds a plurality of contacts 2. The casing 1 has a bottom wall 11 and a surrounding wall 12 surrounding the bottom wall 11. The peripheral wall 12 is composed of a pair of first peripheral walls 121 and a pair of second peripheral walls 122. At least one of the pair of first peripheral walls 121 holds the plurality of contacts 2 in parallel in the arrangement direction (longer direction of the first peripheral wall 121). The pair of second peripheral walls 122 are respectively connected to ends of the pair of first peripheral walls 121. The size of the 方向 case 1 in the thickness direction is, for example, several mm or less. The dimension in the longitudinal direction of the casing 1 is, for example, several tens of mm. The dimension in the short-side direction of the casing 1 is, for example, several mm. In addition, the parallel interval of the plurality of contacts 2 is a pitch, for example, a decimal point mm. In this embodiment, although the plurality of contacts 2 are juxtaposed at equal intervals, they may be juxtaposed at inconsistent intervals. The mounting metal fitting 5 includes a mounting member 50 mounted on the housing 1 of the connector 101. The mounting member 50 includes a first mounting piece 51 and a second mounting piece 52. The first mounting piece 51 covers at least a part of the inner side surface S1 (see FIG. 15A) of the peripheral wall 12. The second mounting piece 52 is connected to the first mounting piece 51 and covers at least a part of the connecting surface S3 (see FIG. 15A) connecting the outer side surface S2 (see FIG. 15A) of the peripheral wall 12 and the inner side surface S1. That is, the mounting member 50 does not have a portion on the opposite side of the first mounting piece 51 with the peripheral wall 12 therebetween (see FIG. 15A). That is, since the mounting metal fitting 5 of the present embodiment does not have a portion on the opposite side of the first mounting piece 51 sandwiching the surrounding wall 12, the volume ratio of the mounting metal fitting 5 to the casing 1 can be reduced. (2) Details Hereinafter, the structure of the connector 101 of this embodiment will be described in detail. In the following description, the long-side direction of the case 1 and 1A is set to the left-right direction (first direction), the short-side direction of the case 1 and 1A is set to the up-down direction (second direction), and the case 1 and 1A are set. The thickness direction will be described as a front-rear direction (third direction). In addition, in FIG. 1 to FIG. 31, although the arrows showing these directions (up, down, left, right, front, and back) are shown, these arrows are merely provided for the purpose of auxiliary description, and are not Accompany the entity. In addition, the above-mentioned directions are not intended to limit the usage patterns of the connector 101 and other connectors 102 of this embodiment. (2. 1) Overall configuration First, the overall configuration of the connector 101 of this embodiment will be described in detail. The connector 101 of this embodiment is a socket (female connector), and includes a housing 1, a plurality of contacts 2, and a pair of mounting metal fittings 5. For mounting metal fittings 5, use "(2. 2) Install metal fittings "for details. The case 1 is a flat rectangular parallelepiped that is long in the first direction (left-right direction) and has an insulating resin molded body. In this embodiment, the housing 1 is an insert-molded product having a pair of mounting metal fittings 5 as inserts. The housing 1 includes a bottom wall 11, a peripheral wall 12, and a table portion 16. The bottom wall 11 has a long plate shape in the first direction (left-right direction) and constitutes the bottom of the casing 1. The surrounding wall 12 protrudes forward from the peripheral edge of the bottom wall 11 and has a rectangular frame shape in a plan view. That is, the surrounding wall 12 is configured to surround the periphery of the bottom wall 11. Here, "viewing from above" refers to a case of viewing from the third direction (front-rear direction). Specifically, the peripheral wall 12 is composed of a pair of first peripheral walls 121 and a pair of second peripheral walls 122. The pair of first peripheral walls 121 are a pair of walls in the first direction among the peripheral walls 12. Each of the pair of first peripheral walls 121 stores a plurality of contacts 2 in a plurality of storage sections 17 to be described later, and the plurality of contacts 2 are held in a state aligned in one direction (left-right direction). That is, a plurality of contacts 2 are provided on the peripheral wall 12. In this embodiment, the pair of first peripheral walls 121 respectively hold four contacts 2. The platform portion 16 has a rectangular parallelepiped shape that is long in the first direction (left-right direction) and protrudes forward from the center of the bottom wall 11. A portion surrounded by the bottom wall 11, the peripheral wall 12, and the table portion 16 constitutes a fitting recess 13 into which the other connector 102 is fitted. Specifically, one pair of the first peripheral wall 121A (to be described later) and one pair of the other connectors 102 to the second peripheral wall 122A (to be described later) are fitted in the fitting recess 13. Accordingly, the connector 101 is connected to the other connector 102. The contact 2 is a metal molded body made of a metal material such as a copper alloy. Furthermore, metal plating is applied to the contact 2. In addition, it is not necessary to apply metal plating to the contact 2. The contact 2 includes a spring piece 24, a rising piece 25, a falling piece 26, and a terminal piece 27, and these are integrally formed (see FIG. 5B). The front end of the reed spring piece 24 is bent into a horseshoe shape, and is configured to elastically deform in the second direction (up and down direction). That is, the spring piece 24 is inserted into the fitting recess 13 in a state where the contact pieces 2A (hereinafter, referred to as "contact pieces 2A" in principle) of the plurality of other connector sides of the other connector 102 are inserted into the fitting recess 13 Contact 2A. Accordingly, the spring piece 24 is configured to generate an elastic force in the direction of the corresponding contact piece 2A. The knuckle rising piece 25 has a plate shape. The first end (rear end) of the rising piece 25 is integrated with the spring piece 24. The rising piece 25 is configured to contact the corresponding contact 2A in a state where the fitting recess 13 is inserted into the plurality of contacts 2A of the other connector 102. The rising piece 25 is integrated with a protrusion 251 protruding toward the spring piece 24. The protrusion 251 is in a state in which the plurality of contacts 2A of the other connector 102 are inserted into the fitting recess 13 in parallel with the protrusion 221 of the corresponding contact 2A in the third direction (front-rear direction), and is located in front of the protrusion 221 ( (See Figure 14). That is, the protrusion 251 is a locking mechanism by hooking the protrusion 221 of the corresponding contact 2A. The cymbal descending piece 26 has a plate shape. The first end (front end) of the falling piece 26 is bent in a reverse U-shape, and is integrated with the second end (front end) of the rising piece 25. (2) The terminal piece 27 has a plate shape. The terminal piece 27 is integrated with the second end (rear end) of the falling piece 26. In addition, the front end of the terminal piece 27 is exposed from the case 1 at one end side (rear side) in the third direction. One surface (rear surface) of the terminal piece 27 becomes a bonding surface which is bonded to the substrate 7 by, for example, soldering. The plurality of contacts 2 are roughly divided into a signal terminal 3 for signal transmission and a power terminal 4 electrically connected to a power source. In this embodiment, among the eight contacts 2, there are four signal terminals 3 and four power terminals 4. Furthermore, in this embodiment, the pair of first peripheral walls 121 are provided in a state where two signal terminals 3 and two power terminals 4 are arranged in parallel in the arrangement direction (left-right direction), respectively. Furthermore, two signal terminals 3 are provided on the pair of first peripheral walls 121 so as to be sandwiched between the two power terminals 4. In this embodiment, the power supply terminal 4 is formed by juxtaposing three signal terminals 3 in one direction (left-right direction) to form an integrated shape. That is, in this embodiment, the width dimension (the dimension in the first direction (the left-right direction)) of the power terminal 4 is set to be larger than the width dimension of the signal terminal 3. Accordingly, the impedance of the power terminal 4 is set to be smaller than the impedance of the signal terminal 3, and the rated current of the power terminal 4 is set to be greater than the rated current of the signal terminal 3. Further, in the power terminal 4, the three spring pieces 24 are integrated with the first end (rear end) of the rising piece 25 at intervals in the first direction (left-right direction). In addition, the terminal piece 27 of the power terminal 4 is integrated with two protruding pieces 271 protruding outward from one end in the second direction (up and down direction). Therefore, when the terminal piece 27 of the power terminal 4 is bonded to the substrate 7 by, for example, soldering, the solder easily diffuses in the area between the two protruding pieces 271 and fillets are easily formed. Therefore, in this configuration, the power terminal 4 can be more firmly joined to the substrate 7. Furthermore, in this embodiment, the shape of the cross section of the signal terminal 3 is the same as the shape of the cross section of the power terminal 4 when viewed from the first direction (left-right direction). "Identical" as used herein refers to "approximately identical" performance. Therefore, due to manufacturing errors or deviations, slight differences in the shapes of the cross sections of the signal terminal 3 and the power terminal 4 from each other are errors within the allowable range. The cymbal case 1 has a plurality of accommodating portions 17 (here, eight) corresponding to the plurality of contacts 2. The plurality of storage portions 17 penetrate the bottom wall 11 in the thickness direction (front-rear direction), respectively. Each of the plurality of contacts 2 is pushed into the storage portion 17 from the rear and is stored in the storage portion 17. The plurality of accommodating portions 17 are provided in two equal portions on both sides in the second direction (up and down direction) of the holding table portion 16. The plurality of accommodating portions 17 located on both sides in the second direction of the table portion 16 are arranged in parallel at approximately equal intervals along the first direction (left-right direction). Here, among the four storage portions 17 located on the first side (upper side) in the second direction of the table portion 16, the two storage portions 17 located on both sides in the first direction (left-right direction) each store the power terminal 4 As a contact 2. Here, among the four accommodating sections 17 located on the second side (lower side) in the second direction of the table section 16, the two accommodating sections 17 located on both sides in the first direction also accommodate the power terminals 4 as contacts, respectively. Piece 2. The remaining four accommodating portions 17 each contain a signal terminal 3 as a contact 2. Each of the plurality of contacts 2 is partially exposed in the fitting recessed portion 13 while being stored in the storage portion 17. Specifically, a part of each of the spring pieces 24 of the plurality of contacts 2 is exposed to the fitting recessed portion 13 from the inside of the table portion 16. Furthermore, a part of each of the rising pieces 25 of the plurality of contacts 2 is exposed to the fitting recess 13 from the inside of the first peripheral wall 121. Therefore, when the connector 101 is connected to the other connector 102, each of the plurality of contacts 2 is exposed in the fitting recess 13 and comes into contact with the corresponding contact 2A of the other connector 102. According to this, the plurality of contacts 2 of the connector 101 are electrically connected to the plurality of contacts 2A of the other connectors 102, respectively. (2. 2) Mounting metal fittings Next, the mounting metal fittings 5 in the connector 101 of this embodiment will be described in detail using FIGS. 6A and 6B. In this embodiment, the mounting metal fittings 5 are provided at both ends of the housing 1 in the first direction (left-right direction), respectively. In the following description, although the metal fitting 5 mounted on the first end (left end) in the first direction of the housing 1 is taken as an example in principle, it is mounted on the first direction of the housing 1 The mounting metal fitting 5 at the second end (right end) also has the same configuration. The mounting metal fitting 5 is a metal formed body made of a metal material such as a copper alloy. The metal fitting 5 is installed to increase the strength of the casing 1. The attachment metal fitting 5 includes a first attachment piece 51, a second attachment piece 52, and a third attachment piece 53 as the attachment member 50 to be attached to the case 1. The first mounting piece 51 has a rectangular plate shape that is long in the third direction (front-rear direction). The first mounting piece 51 covers at least a part of the inner side surface S1 of the peripheral wall 12 in a state where the mounting member 50 is mounted on the casing 1. Specifically, the first mounting piece 51 is mounted on the housing 1 in a state where the third direction (front-rear direction) penetrates the bottom wall 11 and covers the inner side surface S1 of the peripheral wall 12 along the third direction (see FIG. 15A). (Figure 15B). The first end (front end) of the first mounting piece 51 in the longitudinal direction is integrated with the first end of the second mounting piece 52. The second end (rear end) in the longitudinal direction of the first mounting piece 51 is integrated with the third mounting piece 53. The first end of the second mounting piece 52 is connected to the first end (front end) of the first mounting piece 51 in the longitudinal direction. The second end of the second mounting piece 52 faces the protruding wall 19 (described later). The second mounting piece 52 covers at least a part of the connecting surface S3 connecting the outer side surface S2 and the inner side surface S1 of the peripheral wall 12 in a state where the mounting member 50 is mounted on the housing 1. In this embodiment, the connecting surface S3 is the front end portion of the first peripheral wall 121 (or the second peripheral wall 122), and is the outer surface of the portion forming the platform shape in plan view (see FIGS. 15A and 15B). Here, "viewing from the top" refers to the case where the first peripheral wall 121 is used as the object, and the object is viewed from the first direction (left-right direction). When the second peripheral wall 122 is used as the object, the second direction (up-down direction) is viewed. ) Watching situation. The cymbal mounting member 50 does not have a portion covering the outer side surface S2 of the peripheral wall 12. That is, the mounting member 50 does not have a portion on the opposite side of the first mounting piece 51 with the peripheral wall 12 therebetween. In other words, the mounting member 50 is connected to the second end of the second mounting piece 52 and has a portion extending from the second end of the second mounting piece 52 along the outer side surface S2 of the peripheral wall 12. In other words, the mounting member 50 is in the thickness direction of the peripheral wall 12 and does not have a portion where the peripheral wall 12 is sandwiched between the mounting member 50 and the first mounting piece 51.安装 In the present embodiment, the mounting member 50 is a set of the first mounting piece 51 and the second mounting piece 52 as one set piece 54, and has a plurality of (three here) set pieces 54. Specifically, in the mounting metal fitting 5 on the first end (left end) side in the first direction, the two pieces 54 are mounted on the first end (left end) in the longitudinal direction of the pair of first peripheral walls 121, respectively. . In addition, the remaining one panel 54 is attached to the second peripheral wall 122 on the first side (left side) in the first direction. Similarly, in the mounting metal fitting 5 on the second side (right side) in the first direction, the two pieces 54 are mounted on the second end (right end) in the longitudinal direction of the pair of first peripheral walls 121, respectively. In addition, the remaining one piece 54 is attached to the second peripheral wall 122 on the second end (right end) side in the first direction of the casing 1. That is, the three panels 54 are respectively provided in the peripheral wall 12, and a pair of the first peripheral wall 121 and the second peripheral wall 122. The third mounting piece 53 has a rectangular plate shape that is long in the second direction (up and down direction). The third mounting piece 53 has three pieces 54 integrally. Specifically, both ends in the longitudinal direction (up and down direction) of the third mounting piece 53 are integrated with the second ends (rear ends) in the longitudinal direction of the first pair of first mounting pieces 51. Furthermore, in the mounting metal fitting 5 on the first side (left side) in the first direction, one end (left end) in the short-side direction of the third mounting piece 53 and the second end (long-side direction) of the first mounting piece 51 ( Back end) into one. Similarly, in the mounting metal fitting 5 on the second side (right side) in the first direction, one end (right end) in the short-side direction of the third mounting piece 53 and the second end (long-side direction) of the first mounting piece 51 ( Back end) into one. (1) Here, as described above, the first mounting piece 51 is attached to the housing 1 in a state where it penetrates the bottom wall 11 in the third direction (front-rear direction). Therefore, the third mounting piece 53 integrated with the second end (rear end) in the longitudinal direction of the first mounting piece 51 is exposed from the casing 1 at one end side (rear side) in the third direction. (See Figure 2). That is, the first mounting piece 51 penetrates the bottom wall 11 in the thickness direction of the bottom wall 11. The third mounting piece 53 extends from the one end of the bottom wall 11 side of the first mounting piece 51 along the bottom wall 11.之一 One surface (rear surface) of the third mounting piece 53 is substantially the same plane as one surface (rear surface) of the plurality of contacts 2 and is a bonding surface to be bonded to the substrate 7 by, for example, soldering. That is, the third mounting piece 53 has a bonding portion 511 bonded to the substrate 7. In other words, the mounting member 50 has a joint portion 511 that is bonded to the substrate 7. In addition, it can be said that the joint portion 511 is provided at one end of the bottom wall 11 side of the first mounting piece 51 (here, the third mounting piece 53). The third mounting piece 53 has a recess 531. The recess 531 is recessed in the mounting metal fitting 5 on the first side (left side) in the first direction from one end in the short-side direction of the third mounting piece 53 toward the other end (left end). In addition, the recess 531 is recessed from one end (left end) toward the other end (right end) of the short side of the third mounting piece 53 in the mounting metal fitting 5 on the second side (right side) in the first direction. That is, the third mounting piece 53 has a recessed portion 531 recessed along the bottom wall 11 in a plan view. Here, "viewing from above" refers to a case of viewing from the third direction (front-rear direction). In addition, the third mounting piece 53 has a plurality of (here, two) terminal portions 532. The two terminal portions 532 protrude from both ends of the third mounting piece 53 in the longitudinal direction (up and down direction), It is integrated with the third mounting piece 53. The terminal portion 532 has a rectangular plate shape that is long in the second direction (up-down direction). The terminal portion 532 on the first side (upper side) in the second direction is juxtaposed in the first direction (left-right direction) with the plurality of contacts 2 on the first side (upper side) in the second direction. Similarly, the terminal portion 532 on the second side (lower side) in the second direction is juxtaposed with the plurality of contacts 2 in the first direction (left-right direction) and the second side (lower side) in the second direction. One surface (rear surface) of the terminal portion 532 is substantially the same plane as one surface (rear surface) of the plurality of contacts 2 and is a bonding surface to be bonded to the substrate 7 by, for example, soldering.此 Here, a plurality of (here, six) exposed portions 111 are provided in the housing 1 (see FIGS. 2 and 4). Specifically, on the first side (left side) in the first direction of the casing 1, three exposed portions 111 are provided at the first end (left end) in the first direction of the pair of first peripheral walls 121, and the first 2Circular wall 122. Further, on the second side (right side) in the first direction of the housing 1, three exposed portions 111 are provided at the second end (right end) in the first direction of the pair of first peripheral walls 121 and the second end Surrounding wall 122. The exposed portion 111 is recessed forward from the rear surface of the peripheral wall 12 to expose a part of the corresponding first mounting piece 51 from the housing 1. For example, on the first side (left side) in the first direction, the exposed portions 111 on the upper side, the lower side, and the left side respectively expose a part of the first mounting piece 51 on the upper side, the lower side, and the left side from the case 1. That is, the exposed portion 111 is recessed in the thickness direction (front-rear direction) of the bottom wall 11 to expose a part of the mounting member 50 from the housing 1. Furthermore, the casing 1 has a plurality of thick portions 18 (refer to FIG. 1 and FIG. 3). The two thick-walled portions 18 are provided at both ends in the longitudinal direction (left-right direction) of the fitting recess 13. The thick wall portion 18 is integrated with the bottom wall 11 so as to protrude forward from the bottom wall 11. The thick-walled portion 18 has a triangular shape in a plan view, has a bottom surface contacting the bottom wall 11, a standing surface contacting the corresponding first mounting piece 51, and an inclined surface facing the outside. Here, "viewing from above" refers to a case of viewing from the second direction (up and down direction). Specifically, in the thick wall portion 18 provided on the first side (left side) in the first direction, the rising surface is in contact with the first mounting piece 51 provided on the second peripheral wall 122 on the left side. Furthermore, in the thick wall portion 18 provided on the second side (right side) in the first direction, the rising surface is in contact with the first mounting piece 51 provided on the second peripheral wall 122 on the right side. In addition, the boundary between the bottom wall 11 and the first mounting piece 51 is covered in both of the two thick-walled portions 18. In other words, the thick wall portion 18 covers the bottom wall 11 and a portion of the mounting member 50 that penetrates the bottom wall 11 and is exposed inside the peripheral wall 12 (the first mounting piece 51). Furthermore, the casing 1 has a plurality of (here, six) protruding walls 19 (see FIGS. 1 and 3). Each of the six protruding walls 19 has a rectangular plate shape. Four of the six protruding walls 19 protrude from one end (front end) in the third direction of the first peripheral wall 121 in a direction (forward) along the third direction. The remaining two protruding walls 19 protrude from one end (front end) in the third direction of the second peripheral wall 122 in a direction (forward) along the third direction. In other words, the protruding wall 19 protrudes from the connection surface S3 of the peripheral wall 12 in the third direction (front-rear direction). The six protruding walls 19 are opposed to the second ends of the corresponding second mounting pieces 52, respectively. Specifically, on the first side (upper side) in the second direction, the two protruding walls 19 face the second ends (upper ends) of the two second mounting pieces 52, respectively. Further, on the second side (lower side) in the second direction, the two protruding walls 19 face the second ends (lower ends) of the two second mounting pieces 52, respectively. In addition, on the first side (left side) in the first direction, the protruding wall 19 faces the second end (left end) of the second mounting piece 52. In addition, on the second side (right side) in the first direction, the protruding wall 19 faces the second end (right end) of the second mounting piece 52. In this way, the protruding wall 19 faces one end of the second mounting piece 52 on the outer side S2 side. In this embodiment, the mounting metal fitting 5 on the first side (left side) in the first direction is in a state where the joint portion 511 is bonded to the substrate 7 and can be connected to a pair of upper and lower power sources through the conductors of the substrate 7 Terminal 4 is electrically connected. Similarly, the mounting metal fitting 5 on the second side (right side) in the first direction can be electrically connected to a pair of upper and lower power terminals 4 through the conductors of the substrate 7 in a state where the joint portion 511 is bonded to the substrate 7. . That is, the contact 2 (power terminal 4) of one of the plurality of contacts 2 is configured to be electrically connected to the equipotential of the mounting metal fitting 5. (3) Other connectors Hereinafter, another connector 102 corresponding to the connector 101 of this embodiment will be described with reference to FIGS. 7 to 12C. (3. 1) Overall configuration First, the overall configuration of the other connector 102 of this embodiment will be described in detail. For connection terminal 6, use "(3. 2) Connection terminal "for details. The other connector 102 of this embodiment type is a plug (male connector), as shown in FIG. 7 to FIG. 12C, provided with another connector-side housing 1A (hereinafter, referred to as "shell 1A" in principle), and A plurality of contacts (here, eight) 2A. In addition, the other connector 102 of this embodiment includes two pairs of other connector-side mounting metal fittings 5A (hereinafter, referred to as “mounting metal fittings 5A” in principle) and a pair of connection terminals 6. For connection terminal 6, use "(3. 2) Connection terminal "for details. The case 1A is a flat rectangular parallelepiped shape that is long in the first direction (left-right direction) and has an insulating resin molded body. The housing 1A has a bottom wall 11A and a surrounding wall 12A. The bottom wall 11A has a long plate shape in the first direction (left-right direction), and constitutes the bottom of the case 1A. The peripheral wall 12A is integrated with the bottom wall 11A. The peripheral wall 12A protrudes forward so as to surround one surface (front surface) of the bottom wall 11A from the periphery of the bottom wall 11A, and has a rectangular frame shape in a plan view. That is, the surrounding wall 12A is configured to surround the bottom wall 11A. Here, "viewing from above" refers to a case of viewing from the third direction (front-rear direction). Specifically, the peripheral wall 12A is composed of a pair of first peripheral walls 121A and a pair of second peripheral walls 122A. The pair of first peripheral walls 121A is a pair of walls that are long in the first direction (left-right direction) of the peripheral walls 12A. The pair of second peripheral walls 122A is a pair of walls that are longer in the second direction (up and down direction) of the peripheral walls 12A. A portion surrounded by the bottom wall 11A and the peripheral wall 12A constitutes a fitting recessed portion 13A into which the connector 101 is fitted. Specifically, the stage portion 16 of the connector 101 is fitted in the fitting recessed portion 13A. In this embodiment, the housing 1A is an insert-molded product in which a plurality of contacts 2A and two pairs of mounting metal fittings 5A are set as inserts. In this embodiment, a plurality of contacts 2A are provided on each of the pair of first peripheral walls 121A. Specifically, each of the pair of first peripheral walls 121A holds four contacts 2A. Furthermore, in this embodiment, the pair of connection terminals 6 are respectively pushed into the pair of second peripheral walls 122A, and are held in the case 1A. The contact 2A is a metal molded body composed of a metal material such as a copper alloy. Furthermore, metal plating is applied to the contact 2A. In addition, it is not necessary to apply metal plating to the contact 2A. The contact 2A includes a contact piece 21, a hanging piece 22, and a terminal piece 23, and these are integrally formed (see FIG. 11B). The contact piece 21 is plate-shaped. The contact piece 21 is provided on a surface of the peripheral wall 12A facing the fitting recessed portion 13A. The contact piece 21 is configured to be in contact with the corresponding contact 2 in a state where the table portion 16 of the connector 101 is inserted into the fitting recess 13A. Furthermore, the contact piece 21 is provided with a recessed portion 211 recessed in a direction away from the fitting recessed portion 13A. The depression 211 is configured to be partially fitted into a part of the corresponding contact 2 in a state where the stage portion 16 of the connector 101 is inserted into the fitting recess 13A. That is, the depression 211 of the contact piece 21 and the corresponding contact 2 constitute a locking mechanism that can release the connection state between the connector 101 and the other connector 102 by applying a certain force or more. The down-hanging sheet 22 is plate-shaped. The hanging piece 22 is provided along the outer surface of the first peripheral wall 121A (upper first peripheral wall 121A, upper surface and lower first peripheral wall 121A, lower surface). One end (front end) of the hanging piece 22 is bent in a reverse U-shape, and is integrated with the first end (front end) of the contact piece 21. Furthermore, the hanging piece 22 is integrated with the protrusion 221 protruding along the thickness direction (up and down direction) of the hanging piece 22. The protrusion 221 is aligned with the protrusion 251 of the corresponding contact 2 in the third direction (front-rear direction) in a state where the stage portion 16 of the connector 101 is inserted into the fitting concave portion 13A (refer to FIG. 14). Therefore, as long as the other connector 101 is not pulled out from the fitting recess 13A with a specific force or more, and the protrusion 251 of the contact 2 is hooked to the protrusion 221 of the contact 2A, the connection state between the connector 101 and the other connector 102 Will not be lifted. That is, the protrusion 221 of the contact 2A and the protrusion 251 of the contact 2 constitute a lock mechanism that can release the connection state between the connector 101 and the other connector 102 by applying a certain force or more. The terminal piece 23 has a plate shape. The first end of the terminal piece 23 and the second end (rear end) of the contact piece 21 are integrated. The second end of the terminal piece 23 is exposed from the case 1A at one end side (rear side) in the third direction. One surface (rear surface) of the terminal piece 23 is a bonding surface to be bonded to the substrate 7 by, for example, soldering. The plurality of contacts 2A are roughly divided into a signal terminal 3A and a power terminal 4A in the same way as the connector 101. In this embodiment, as with the connector 101, among the eight contacts 2A, there are four signal terminals 3A and four power terminals 4A. Furthermore, in this embodiment, a pair of first peripheral walls 121A are provided in a state where two signal terminals 3A and two power terminals 4A are arranged in parallel in the arrangement direction (left-right direction), respectively. Furthermore, two signal terminals 3A are provided on the pair of first peripheral walls 121A so as to be sandwiched between the two power terminals 4A. In this embodiment, the power supply terminal 4A is the same as the power supply terminal 4 of the connector 101, and the three signal terminals 3A are arranged side by side in one direction (left-right direction) to form an integrated shape. That is, in this embodiment, the width dimension (the dimension in the first direction (the left-right direction)) of the power terminal 4A is set to be larger than the width dimension of the signal terminal 3A. Accordingly, the impedance of the power terminal 4A is set to be smaller than the impedance of the signal terminal 3A, and the rated current of the power terminal 4A is set to be greater than the rated current of the signal terminal 3A. The contact piece 21 of the power terminal 4A is provided with three depressions 211. Further, the terminal piece 23 of the power terminal 4A is integrated with two protruding pieces 231 protruding outward from the second end in the second direction (up and down direction). Therefore, when the terminal piece 23 of the power terminal 4A is bonded to the substrate 7 by soldering, for example, the solder easily diffuses in the area between the two protruding pieces 231, and fillets are easily formed. Therefore, in this configuration, the power supply terminal 4A can be more firmly joined to the substrate 7. Furthermore, in this embodiment, the shape of the cross section of the signal terminal 3A is the same as the shape of the cross section of the power terminal 4A when viewed from the first direction (left-right direction). "Identical" as used herein refers to "approximately identical" performance. Therefore, due to manufacturing errors or deviations, slight differences in the shapes of the cross sections of the signal terminal 3A and the power terminal 4A from each other are errors within the allowable range. The mounting metal fitting 5A is a metal molded body made of a metal material such as a copper alloy, and has a plate-shaped first piece 501 and a plate-shaped second piece 502 integrated with the first piece 501 (see FIG. 11A). The mounting metal fitting 5A is L-shaped as a whole when viewed from above. Here, "viewing from the top" refers to a case of viewing from the first direction (left-right direction). The mounting metal fitting 5A is provided in a pair on each of the pair of second peripheral walls 122A (see FIGS. 7 and 8). Specifically, the mounting metal fitting 5A is installed so that the first piece 501 is buried in the second peripheral wall 122A. That is, the mounting metal fitting 5A is provided on the second peripheral wall 122A where the connection terminal 6 is provided in the pair of second peripheral walls 122A. Specifically, the second peripheral wall 122A in which the connection terminal 6 is provided in the pair of second peripheral walls 122A is an insert-molded product using the mounting metal fitting 5A as an insert. The mounting metal fitting 5A is used to increase the strength of the second peripheral wall 122A (that is, the case 1A). The second piece 502 is exposed from the housing 1A, and the rear surface thereof is slightly the same plane as the rear surface of the contact 2A. In each of the pair of first peripheral walls 121A, two second pieces 502 are provided in the case 1A in a state where the parallel direction (left-right direction) is parallel to the terminal pieces 23 of the plurality of contacts 2A. Therefore, the second piece 502 can be bonded to the substrate 7 similarly to the plurality of contacts 2A. In addition, by bonding the second sheet 502 to the substrate 7 by welding, the stress applied to the second sheet 502 (that is, the mounting metal fitting 5A) can be transmitted to the substrate 7, and the substrate 7 can withstand the stress. Therefore, the strength of the metal fitting 5A can be increased, and as a result, the strength of the housing 1A can be increased. (3. 2) Connection terminal Next, the connection terminal 6 in the other connector 102 of this embodiment will be described in detail using FIGS. 12A to 12C. In this embodiment, the connection terminal 6 is provided on each of the pair of second peripheral walls 122A. In the following description, in principle, the connection terminal 6 attached to the second peripheral wall 122A on the first side (left side) in the first direction will be described as an example. However, the connection terminal 6 installed in the first direction The connection terminal 6 of the second peripheral wall 122A on both sides (right side) also has the same structure. The connection terminal 6 is a metal molded body made of a metal material such as a copper alloy, and has conductivity. Furthermore, metal plating is applied to the connection terminals 6. In addition, the connection terminal 6 may not be subjected to metal plating. The connection terminal 6 includes a main piece 61, an opposing piece 62, and a connection piece 63. The main piece 61 has a rectangular plate shape that is long in the second direction (up and down direction). The main piece 61 is held in the case 1A by being pushed into the groove portion 14 (see FIG. 8) of the second peripheral wall 122A from the rear. The term "pushing" as used herein refers to the concept of "pushing in" when a certain amount of force is applied. The trench portion 14 is provided on each of the pair of second peripheral walls 122A. The groove portion 14 is provided so as to penetrate the second peripheral wall 122A in the third direction (front-rear direction). Specifically, the groove portion 14 of the second peripheral wall 122A on the first side (left side) in the first direction is provided to open a portion of the front surface, a portion of the rear surface, and a portion of the left surface of the second peripheral wall 122A. Further, the groove portion 14 of the second peripheral wall 122A on the second side (right side) in the first direction is provided to open a portion of the front surface, a portion of the rear surface, and a portion of the right surface of the second peripheral wall 122A. In this embodiment, the dimension of the longitudinal direction (up and down direction) of the groove portion 14 is smaller than the dimension of the longitudinal direction (up and down direction) of the main piece 61 of the connection terminal 6. Therefore, the main piece 61 of the connection terminal 6 is pushed into the groove portion 14 from the rear, and is held in the case 1A in a state of plastic deformation. That is, a part of the connection terminal 6 (main piece 61) is held by the case 1A. The first end (front end) in the short-side direction of the main piece 61 is integrated with the first end of the connecting piece 63. In this embodiment, the first ends of the two connecting pieces 63 are in the long-side direction of the main piece 61. (Up and down direction) is integrated with the first end in the short side direction of the main sheet 61 at intervals. Further, the second ends of the two connecting pieces 63 are integrated with the first ends (front ends) in the longitudinal direction of the corresponding facing pieces 62, respectively. That is, the connection terminal 6 includes a plurality of (two in this case) facing pieces 62. The first ends of the plural facing pieces 62 are integrated with the corresponding plural (two in this case) connecting pieces 63, respectively. In addition, in the connection terminal 6, neither the facing piece 62 nor the connection piece 63 is held by the case 1A. In this embodiment, in the state where the main piece 61 is held by the case 1A (the second peripheral wall 122A), a gap is generated between the facing piece 62 and the connection piece 63 and the case 1A. Therefore, in this embodiment, the facing piece 62 and the connection piece 63 do not hinder the housing 1A, and are easily elastically deformed. The link piece 63 connects the ends (here, the front ends) of the main piece 61 and the facing piece 62 to each other. Specifically, the upper connection piece 63 connects the first end (front end) in the short-side direction of the main piece 61 and the first end (front end) in the long-side direction of the main facing piece 62. Furthermore, the lower connecting piece 63 connects the first end (front end) in the short-side direction of the main piece 61 and the first end (front end) in the long-side direction of the lower facing plate 62. In addition, the connecting piece 63 is bent in a reverse U shape in a plan view. Here, "viewing from above" refers to a case of viewing from the second direction (up and down direction).避 Avoiding portions 610 are respectively provided on the first end (front end) in the short-side direction of the main piece 61 and at two corners in the long-side direction (up-and-down direction) of the main piece 61. The avoiding portion 610 is recessed in a direction (rearward) along the third direction (front-rear direction). This direction corresponds to the direction opposite to the direction in which the connection terminal 6 is pushed into the second peripheral wall 122A. That is, the avoidance portion 610 is provided at a corner portion of one end (here, the front end) of the main piece 61 that is connected to the connection piece 63, and is opposite to the direction in which the connection terminal 6 is pushed into the second peripheral wall 122A. (Ie, backwards) recessed.中 Of the connection terminals 6 on the first side (left side) in the first direction, the avoidance portion 610 on the first side (upper side) in the second direction is provided to open front, upper, and left. Further, in the connection terminal 6 on the first side (left side) in the first direction, the avoidance portion 610 on the second side (lower side) in the second direction is provided to open forward, downward, and left. Similarly, in the connection terminal 6 on the second side (right side) in the first direction, the avoidance portion 610 on the first side (upper side) in the second direction is provided to open forward, upward, and right. Further, in the connection terminal 6 on the second side (right side) in the first direction, the avoidance portion 610 on the second side (lower side) in the second direction is provided to open forward, downward, and right. In addition, the avoidance portion 610 is provided with an opening surface viewed from the third direction (front-rear direction) so as to widen from the rear toward the front.尺寸 The dimension of the long side direction (up and down direction) of the main sheet 61 is the dimension of the second end (rear end) side of the short side direction larger than that of the first end (front end) side of the short side direction. In addition, the second end (rear end) in the short-side direction of the main piece 61 is exposed from the case 1A at one end side (rear side) in the third direction of the case 1A. The second end one surface (rear surface) in the short-side direction of the main piece 61 is substantially the same plane as the one surface (rear surface) of the plurality of contacts 2A, and is a bonding surface bonded to the substrate 7 by, for example, welding. That is, the connection terminal 6 further includes a bonding portion 611 that is bonded to the substrate 7. Further, the joint portion 611 is provided at the second end (rear end) in the short-side direction of the main piece 61, that is, one end on the bottom wall 11 side. The second end (rear end) in the short-side direction of the main piece 61 is provided with two recessed portions 612. Both recessed portions 612 are recessed in a direction along the thickness direction (here, forward) of the casing 1A. This direction corresponds to the direction in which the connection terminal 6 is pushed into the second peripheral wall 122A. Further, the two recessed portions 612 are connected, and the portion where the two recessed portions 612 are connected is also recessed in a direction (forward) along the third direction. That is, the recessed portion 612 is provided at the second end (rear end) in the short side direction of the main piece 61, that is, one end on the bottom wall 11A side, and the connection terminal 6 is pushed into the second peripheral wall 122A (toward Front) sunken. The facing piece 62 has a rectangular plate shape that is long in the third direction (front-rear direction). The facing piece 62 faces the main piece 61 at a distance in the first direction (left-right direction) and is exposed from the second peripheral wall 122A. Specifically, the facing piece 62 of the connection terminal 6 on the first side (left side) in the first direction is exposed from the left side of the second peripheral wall 122A. Furthermore, the facing piece 62 of the connection terminal 6 on the second side (right side) in the first direction is exposed from the right side of the second peripheral wall 122A.空隙 A gap is provided between the facing sheet 62 and the main sheet 61. In the connection terminal 6, the facing piece 62 and the connection piece 63 are not held by the case 1A. Therefore, the facing piece 62 and the connecting piece 63 can be elastically deformed. In particular, the facing piece 62 can be elastically deformed in the first direction (left-right direction). That is, in the connection terminal 6, a portion (the opposing piece 62 and the connecting piece 63) that is not held by the case 1A can be elastically deformed.对 The facing piece 62 is provided with a protruding portion 621 protruding in a direction along the first direction (left-right direction). Specifically, the facing piece 62 of the connection terminal 6 on the first side (left side) in the first direction is provided with a protruding portion 621 protruding to the left. Furthermore, a protruding portion 621 protruding to the right is provided on the facing piece 62 of the connection terminal 6 on the second side (right side) in the first direction. That is, the facing piece 62 has a protruding portion 621 protruding in a direction along the parallel direction of the pair of second peripheral walls 122A.突出 In this embodiment, the protruding portion 621 extends from the second end (rear end) in the longitudinal direction of the facing piece 62 along the third direction (front-rear direction). That is, the protruding portion 621 extends in a direction orthogonal to the bottom wall 11A of the case 1A. In addition, one end (front end) of the protruding portion 621 on the connecting piece 63 side has a tapered shape in which the amount of protrusion from the facing piece 62 decreases as it approaches the connecting piece 63. With this tapered shape, when the other connector 102 is connected to the connector 101, it is difficult for the protruding portion 621 to catch the mounting metal fitting 5 of the connector 101. In this embodiment, the connection terminal 6 on the first side (left side) in the first direction is in a state where the joint portion 611 is bonded to the substrate 7 and can communicate with a pair of upper and lower power terminals via the conductors of the substrate 7 4A electrical connection. Similarly, the connection terminal 6 on the second side (right side) in the first direction can be electrically connected to a pair of upper and lower power terminals 4A through the conductors of the substrate 7 in a state where the joint portion 611 is bonded to the substrate 7. That is, the contact 2A (power terminal 4A) of one of the plurality of contacts 2A is configured to be electrically connected to the connection terminal 6 at an equal potential. (4) Connection system The connector 101 is mounted on a substrate 7 (hereinafter, also referred to as a "first substrate 71") incorporated in an electronic device such as a smartphone (see FIG. 13). In addition, other connectors 102 corresponding to the connector 101 are similarly mounted on other substrates 7 (hereinafter, also referred to as “second substrate 72”) built into an electronic device (see FIG. 13). As shown in FIGS. 13 and 14, by connecting the connector 101 to the other connector 102, the first conductor included in the first substrate 71 and the second conductor included in the second substrate 72 are electrically connected. . Specifically, the plurality of contacts 2A of the connector 101 are electrically connected to the plurality of contacts 2A of the other connector 102, and the connector 101 is connected to the other connector 102. At this time, the plural (four) signal terminals 3 of the connector 101 are electrically connected to the plural (four) signal terminals 3A corresponding to the other connectors 102 respectively. In addition, the plural (four) power terminals 4 of the connector 101 are electrically connected to the plural (four here) power terminals 4A corresponding to the other connectors 102, respectively. That is, in this embodiment, the connection system 100 is constituted by the connector 101 and other connectors 102. In other words, the connection system 100 includes a connector 101 and another connector 102. In addition, in FIG. 13 and FIG. 14, the other connectors 102 are illustrated in a state where they are reversed in the front-rear direction. The same applies to FIGS. 15A and 15B described later. Here, when the connector 101 is connected to another connector 102, as shown in FIGS. 15A and 15B, the facing piece 62 of the connection terminal 6 is pushed in a direction along the first direction (left-right direction). To the first mounting piece 51 and the second mounting piece 52 of the metal fitting 5. Therefore, the connection terminal 6 comes into contact with the attachment metal fitting 5 in a state of being elastically deformed in the first direction (left-right direction). Specifically, in the connection terminal 6 on the first side (left side) in the first direction, the two opposing pieces 62 are in contact with the first mounting piece 51 of the metal fitting 5 while being elastically deformed to the right, respectively. Furthermore, in the connection terminal 6 on the second side (right side) in the first direction, the two opposing pieces 62 are in contact with the first mounting piece 51 of the metal fitting 5 in a state of being elastically deformed to the left, respectively. That is, in a state where the connector 101 is connected to another connector 102, the connection terminal 6 imparts elastic force to the mounting metal fitting 5 to return to the original state. In a state where the connector 101 is connected to another connector 102, the mounting metal fitting 5 is in contact with the connection terminal 6, and the mounting metal fitting 5 is electrically connected to the connection terminal 6. Therefore, among the first conductor included in the first substrate 71 and the first conductor electrically connected to the mounting metal fitting 5, among the second conductor included in the second substrate 72 and the second conductor electrically connected to the connection terminal 6, Electrical connection. In this embodiment, the first conductor that is electrically connected to the power terminal 4 of the connector 101 and the first conductor that is electrically connected to the power terminal 4A of the other connector 102 are installed via the metal fitting 5 and the connection terminal 6. The 2 conductors are electrically connected. (5) Advantages Hereinafter, when describing the advantages of the mounting metal fitting 5 of this embodiment, first, a comparative example of the mounting metal fitting 5 of this embodiment will be given. Although the basic structure of the mounting metal fitting of the comparative example is the same as that of the mounting metal fitting 5 of this embodiment, the mounting member has a portion (hereinafter, referred to as "opposite side") on the opposite side of the first mounting piece with the surrounding wall 12 interposed therebetween. Parts "). The mounting metal fitting of the comparative example is mounted on the surrounding wall 12 in the same manner as the mounting metal fitting 5 of this embodiment. Here, in the mounting metal fitting of the comparative example, since the mounting member has the opposite side portion, compared with the mounting metal fitting 5 of the present embodiment, it has only the portion on the opposite side, which makes the volume larger than that of the housing 1 The volume ratio is also large. In addition, in the mounting metal fitting 5 of this embodiment, since the mounting member 50 does not have an opposite side portion, the volume ratio of the mounting metal fitting 5 to the casing 1 is reduced. Therefore, the mounting metal fitting 5 of the present embodiment can have a smaller size of the connector 101 than the case where the mounting member 50 has an opposite side portion. That is, the size of the peripheral wall 12 in the thickness direction can be reduced as compared with the case where the mounting member 50 covers the opposite side portion S2 of the peripheral wall 12, and as a result, the connector 101 can be miniaturized. In addition, when the size of the connector 101 is specified to be a specific size, the strength of the housing 1 can be increased compared to a case where the mounting member 50 has an opposite side portion. That is, since the mounting member 50 does not have the opposite side portion, only the portion of the opposite side portion can increase the thickness direction of the peripheral wall 12 (the second direction (up and down direction) of the first peripheral wall 121), and 2 The size of the surrounding wall 122 in the first direction (left-right direction)), so that the strength of the housing 1 can be increased. (6) Modifications Hereinafter, modifications of this embodiment will be listed. Since the basic configurations of the modifications described below are common to the other connectors 102 of this embodiment, descriptions of the common points are omitted. In addition, in the modification examples described below, all of the connectors 102 in the connection system 100 can be used instead of the other connectors 102 in this embodiment. The modifications described below can be used in appropriate combination. For example, each of the first modification and the second modification can be combined with any of the third to seventh modifications. (6. 1) First Modified Example: As shown in FIGS. 16 and 17, the other connector 102 of the first modified example does not include a metal fitting 5A. In this modification, only the connection terminal 6 is attached to each of the pair of second peripheral walls 122A, and no pair of attachment metal fittings 5A is attached. In this configuration, there is no need to provide a space for installing the metal fitting 5A in the housing 1A, and the size of the housing 1A (especially, the size in the longitudinal direction of the housing 1A) can be reduced. That is, in this configuration, miniaturization of other connectors 102 can be achieved. (6. 2) Second Modification In the other connector 102 of the second modification, as shown in FIG. 18, the main piece 61 of the connection terminal 6 has a pair of extension pieces 613, and is connected to other connections of the first modification. The device 102 is different. The pair of extension pieces 613 extend along the bottom wall 11A from the second end (rear end) in the short-side direction of the main piece 61, that is, one end on the side of the bottom wall 11A. The pair of extension pieces 613 are integrated with the main piece 61 so as to protrude from both ends in the longitudinal direction (up and down direction) of the main piece 61. The extension piece 613 has a rectangular plate shape that is long along the second direction (up and down direction). The extension piece 613 on the first side (upper side) in the second direction is juxtaposed in the first direction (left-right direction) with the plurality of contacts 2A on the first side (upper side) in the second direction. Similarly, the extension piece 613 on the second side (lower side) in the second direction is juxtaposed in the first direction (left-right direction) with the plurality of contacts 2A on the second side (lower side) in the second direction. The one surface (rear surface) of the extension piece 613 is approximately the same plane as the one surface (rear surface) of the plurality of contacts 2A, and is a bonding surface to be bonded to the substrate 7 by, for example, soldering. That is, in this modification, the joint portion 611 is further provided on the extension piece 613. In this configuration, the extension piece 613 can be bonded to the substrate 7 instead of the second piece 502 on which the metal fitting 5A is mounted. (6. 3) Third Modification Example: In the other connector 102 of the third modification example, as shown in FIGS. 19A to 19C, neither of the two facing pieces 62 of the connection terminal 6 has a protruding portion 621. Even if the connection terminal 6 does not include the protruding portion 621 as in this modification, in a state where the connector 101 is connected to another connector 102, it can be contacted while giving elastic force to the conductive portion of the connector 101. Furthermore, in this configuration, it is easier to manufacture the connection terminal 6 than when the connection terminal 6 has the protruding portion 621. (6. 4) Fourth Modification Example: In the other connector 102 of the fourth modification example, as shown in FIGS. 20A to 20C, the connection terminal 6 includes one facing piece 62 and one connection piece 63. That is, in this modification, the facing piece 62 and the connecting piece 63 of the connection terminal 6 are not divided into two branches from the first end (front end) in the short-side direction of the main piece 61. Furthermore, in this modification, two protruding portions 621 are provided on one surface of one facing piece 62 at intervals in the second direction (up and down direction). In this configuration, the connection terminal 6 is easier to manufacture than the configuration in which the facing piece 62 and the connecting piece 63 are divided into two branches. (6. 5) Fifth Modification Example: In the other connector 102 of the fifth modification example, as shown in FIGS. 21A to 21C, the connection terminal 6 includes one facing piece 62 and one connection piece 63. That is, in this modification, like the fourth modification, the facing piece 62 and the connecting piece 63 are divided into two branches. In addition, in this modification, the facing piece 62 has only one protrusion 621. With this configuration, it is easier to manufacture the connection terminal 6 than when the connection terminal 6 has a plurality of protruding portions 621. (6. 6) Sixth Modification Example: In the other connector 102 of the sixth modification example, as shown in FIGS. 22A to 22C, the connection terminal 6 includes one facing piece 62 and one connection piece 63. That is, in this modification, like the fourth modification, the facing piece 62 and the connecting piece 63 are divided into two branches. In addition, in this modification, the facing piece 62 does not have the protruding part 621. With this configuration, it is easier to manufacture the connection terminal 6 than when the connection terminal 6 has the protruding portion 621. As in the fourth to sixth modified examples described above, the connection terminal 6 is not limited to a configuration having two facing pieces 62 and two connecting pieces 63, even if it has one facing piece 62 and one connecting piece. The composition of 63 is also possible. In addition, even if the connection terminal 6 is a structure which has 3 or more opposing pieces 62 and 3 or more connecting pieces 63, it is good. In addition, the facing piece 62 is not limited to the structure which has one protrusion part 621, It is good also as a structure which has two protrusion parts 621, and it is good also as a structure which does not have the protrusion part 621. Alternatively, the facing piece 62 may have a configuration having three or more protruding portions 621. (6. 7) Seventh Modification In other connectors 102 of this embodiment, as shown in FIG. 8, the two ends of the bottom wall 11A in the first direction (left-right direction) are respectively along the first direction (left-right direction). The extended pair of extension walls 112 are integrated. Furthermore, in the other connector 102 of this embodiment, a gap is provided between the pair of extension walls 112 and the main piece 61 on both the first side (left side) and the second side (right side) in the first direction. . On the other hand, in the other connector 102 of the seventh modification, as shown in FIG. 23, a pair of extension walls 112 are connected to the main body regardless of the first side (left side) and the second side (right side) in the first direction. The sheets 61 are in contact with each other, and no gap is provided between the pair of extension walls 112 and the main sheet 61. In FIG. 23, only the first side (left side) in the first direction of the other connector 102 is shown. (2) Here, like other connectors 102 of this embodiment, when a gap is provided between the pair of extension walls 112 and the main piece 61, there are the following advantages. In other words, when one surface (rear surface) of the second end in the short-side direction of the main sheet 61 is bonded to the substrate 7 by soldering, filleting is easily formed by spreading the solder through the gap. Therefore, in this configuration, the main piece 61 (that is, the connection terminal 6) is easily and firmly joined to the substrate 7, and as a result, the other connectors 102 are easily and firmly fixed to the substrate 7. In addition, as in the other connector 102 of this modification, when a gap is not provided between the pair of extension walls 112 and the main piece 61, there are the following advantages. That is, when a stress in a direction along the first direction (left-right direction) is applied to the main sheet 61, the pair of extension walls 112 receive the stress, and it is difficult for the main sheet 61 to be plastically deformed. Therefore, in this configuration, the strength of the main sheet 61 (that is, the connection terminal 6) can be increased. In this configuration, when the connection terminal 6 is pushed into the groove portion 14 of the second peripheral wall 122A, the main piece 61 is guided to the groove portion 14 by a pair of extension walls 112, and the positioning of the main piece 61 can be improved. Precision. (6. 8) Eighth Modified Example In the other connector 102 of the eighth modified example, as shown in FIGS. 24 to 27, the housing 1A is a plug-in molded product in which the connection terminal 6 is an insert, and the embodiment The other connectors 102 are different. In other words, the pair of connection terminals 6 are respectively held by the pair of second peripheral walls 122A as an insert-molded product, that is, an insert of the case 1A. In this embodiment, a part of the main piece 61 and the connecting piece 63 is held in the groove 1 of the second peripheral wall 122A in the case 1A as an insert of the case 1A. That is, a part of the connection terminal 6 (a part of the main piece 61 and the connection piece 63) is held by the case 1A. Furthermore, in this embodiment, a wall portion 15 is provided in the groove portion 14 between the facing piece 62 and the main piece 61. The wall portion 15 has a rectangular plate shape that is long in the second direction (up-down direction). The wall portion 15 is integrated with the bottom wall 11A of the housing 1A, and protrudes from the bottom wall 11A in a direction (here, forward) in the thickness direction of the bottom wall 11A. That is, the housing 1A further includes a wall portion 15 provided between the main piece 61 and the facing piece 62.空隙 A gap is provided between the facing piece 62 and the wall portion 15 (ie, the main piece 61). In addition, the facing piece 62 and the connecting piece 63 (excluding a part of the connecting piece 63) of the connection terminal 6 are not held in the case 1A. Therefore, the facing piece 62 and the connecting piece 63 (excluding a part of the connecting piece 63) can be elastically deformed. In particular, the facing piece 62 can be elastically deformed in the first direction (left-right direction). That is, in the connection terminal 6, a portion (the opposing piece 62 and the connecting piece 63 (excluding a portion of the connecting piece 63)) that is not held by the case 1A can be elastically deformed. (6. 9) Ninth Modification The other connector 102 of the ninth modification is different from the other connector 102 of the eighth modification in that it does not have a metal fitting 5A as shown in Figs. 28 and 29. In this modification, only the connection terminal 6 is attached to each of the pair of second peripheral walls 122A, and no pair of attachment metal fittings 5A is attached. In this configuration, there is no need to provide a space for installing the metal fitting 5A in the housing 1A, and the size of the housing 1A (especially, the size in the longitudinal direction of the housing 1A) can be reduced. That is, in this configuration, miniaturization of other connectors 102 can be achieved. (6. 10) Tenth Modified Example In the other connector 102 of the tenth modified example, as shown in FIG. 30, the main piece 61 of the connection terminal 6 has a pair of extension pieces 613, and is connected to other connections of the ninth modified example. The device 102 is different. In this configuration, the extension piece 613 can be bonded to the substrate 7 instead of the second piece 502 on which the metal fitting 5A is mounted. (6. 11) Eleventh Modified Example In the other connector 102 of the eleventh modified example, as shown in FIG. 31, a pair of extension walls are located on the first side (left side) and the second side (right side) of the first direction, regardless of the direction. A gap is provided between 112 and the main sheet 61. In addition, in FIG. 31, only the first side (left side) in the first direction of the other connector 102 is shown. In this configuration, when one surface (rear surface) of the second end in the short-side direction of the main sheet 61 is bonded to the substrate 7 by soldering, filleting is easily formed by solder spreading through the gap. Therefore, in this configuration, the main piece 61 (that is, the connection terminal 6) is easily and firmly joined to the substrate 7, and as a result, the other connectors 102 are easily and firmly fixed to the substrate 7. The eighth to eleventh modification examples can be combined with any of the third to sixth modification examples, respectively. That is, even if each connection terminal 6 of the eighth modification to the eleventh modification is replaced with the connection terminal 6 of any one of the third modification to the sixth modification. (6. 12) Other Modifications 其他 In the other connector 102 of this embodiment, although one connection terminal 6 is provided in each of the pair of second peripheral walls 122A, other configurations are possible. For example, a plurality of connection terminals 6 may be provided on the pair of second peripheral walls 122A. The connection terminal 6 may be provided in the first peripheral wall 121A in addition to the second peripheral wall 122A. In this case, the first peripheral wall 121A may have a groove portion into which a part of the connection terminal 6 (here, the main piece 61) is pushed.其他 In the other connector 102 of this embodiment type, although the dimension in the long-side direction of the first peripheral wall 121A is larger than the dimension in the long-side direction of the second peripheral wall 122A, other configurations are possible. For example, the dimension in the longitudinal direction of the first peripheral wall 121A may be smaller than the dimension in the longitudinal direction of the second peripheral wall 122A. It should be noted that the dimension in the longitudinal direction of the first peripheral wall 121A and the dimension in the longitudinal direction of the second peripheral wall 122A may be slightly the same. In this case, the connector 101 of this embodiment is also appropriately changed in accordance with the shape of the other connector 102.其他 In the other connector 102 of this embodiment, although the facing piece 62 and the connecting piece 63 in the connection terminal 6 can be elastically deformed, they may be of other structures. For example, even if only the facing piece 62 in the connection terminal 6 can be elastically deformed. That is, it is sufficient that the connection terminal 6 is configured to be elastically deformable at a portion not held by the case 1A. In the other connector 102 of this embodiment, although the main piece 61 is held in the case 1A, the opposing piece 62 and the connecting piece 63 and the case 1A are respectively on the short sides of the case 1A. A gap occurs in the direction (up and down direction), but it is not necessary to produce a gap. That is, the opposing piece 62 and the connecting piece 63 may be configured to be elastically deformed while being joined to the case 1A.其他 In the other connector 102 of this embodiment, although the main piece 61 of the connection terminal 6 is held in the case 1A in a plastically deformed state, it may have another configuration. For example, even if the main sheet 61 is not plastically deformed, and the case 1A is plastically deformed, the main sheet 61 may be held in the case 1A. Furthermore, the main sheet 61 may be held in the case 1A even in a state where both the main sheet 61 and the case 1A are plastically deformed. Although the other connector 102 of the second modification example does not include the mounting metal fitting 5A, it may be provided with the mounting metal fitting 5A. That is, both the pair of second peripheral walls 122A may be provided with the connection terminals 6 each having an extension piece 613 and a pair of metal fittings 5A.其他 In the other connectors 102 of the third modification to the sixth modification, although the main piece 61 of the connection terminal 6 does not have the avoiding portion 610, it may have another configuration. That is, even in the other connectors 102 of the third modification to the sixth modification, the main piece 61 of the connection terminal 6 may have the avoidance portion 610.连接 In the connector 101 of the present embodiment, although the mounting member 50 to which the metal fitting 5 is mounted has three pieces 54, it is not limited to the gist of the configuration. For example, as shown in FIGS. 32A and 32B, the mounting member 50 may have only one assembly 54. Even in this configuration, the mounting metal fitting 5 is in contact with the connection terminal 6 in a state where the connector 101 and other connectors 102 are connected, and the metal fitting 5 and the connection terminal 6 can be electrically mounted. In addition, for example, the mounting member 50 has only two pieces 54. In a case where the mounting member 50 has two pieces 54, the two pieces 54 are preferably provided on the pair of first peripheral walls 121, respectively.连接 In the connector 101 of the present embodiment, although the protruding wall 19 is in contact with one end on the side of the outer side S2 of the second mounting piece 52, it may be connected even if it is not connected. That is, even if there is a gap between the protruding wall 19 and one end on the outer side S2 side of the second mounting piece 52.连接 In the connector 101 of the present embodiment, although the mounting member 50 includes the third mounting piece 53, it may have another configuration. For example, the mounting member 50 may not have the third mounting piece 53. In this configuration, the second end (rear end) of the first mounting piece 51 in the longitudinal direction, that is, one end of the bottom wall 11 side is at one end (rear side) of the housing 1 in the thickness direction, Exposed. Furthermore, in this configuration, if the second end surface (rear surface) in the long-side direction of the first mounting piece 51 and the one surface (rear surface) of the plurality of contacts 2 are substantially the same plane, they are bonded to the substrate by soldering, for example. 7 的 接面。 7 joint surface. That is, in this case, it can be said that the joint portion 511 is provided at one end of the bottom wall 11 side of the first mounting piece 51.连接 In the connector 101 of the present embodiment, although the third mounting piece 53 has a plurality of terminal portions 532, it may have another configuration. For example, the third mounting piece 53 may not have the terminal portion 532. In the connection system 100 of the present embodiment, the connector 101 is a plug-in connector, and the other connectors 102 are plugs, but the purpose is not limited thereto. That is, in the connection system 100, even if the connector 101 is a plug, the other connectors 102 may be sockets. (Summary) As described above, the mounting metal fitting (5) of the first aspect includes a mounting member (50). The mounting member (50) is mounted on a housing (1) of a connector (101) having a plurality of contacts (2). The casing (1) has a bottom wall (11) and a surrounding wall (12) surrounding the bottom wall (11). The mounting member (50) includes a first mounting piece (51) and a second mounting piece (52). The first mounting piece (51) covers at least a part of the inner side surface (S1) of the surrounding wall (12). The second mounting piece (52) is connected to the first mounting piece (51) and covers at least a part of the connecting surface (S3) connecting the outer side surface (S2) and the inner side surface (S1) of the surrounding wall (12). The mounting member (50) does not have a portion (opposite side portion) located on the opposite side of the first mounting piece (51) holding the surrounding wall (12). If this structure is used, since it does not have the opposite part, the volume ratio of the metal fitting (5) to the housing (1) can be reduced. In the mounting metal fitting (5) of the second aspect, in the first aspect, the first mounting piece (51) penetrates the bottom wall (11) in the thickness direction of the bottom wall (11). The mounting member (50) further includes a third mounting piece (53). The third mounting piece (53) extends from one end of the bottom wall (11) side of the first mounting piece (51) along the bottom wall (11). When the connector (101) is connected to other connectors (102) with this configuration, even if a stress is applied to the bottom wall (11) in a direction along the thickness direction of the bottom wall (11), This stress can be applied to the third mounting piece (53). Therefore, if this structure is used, the strength of the bottom wall (11), that is, the housing (1) can be increased compared to the case where the third mounting piece (53) is not provided. However, this configuration is not necessary, even if the mounting member (50) does not have the third mounting piece (53). In addition, the first mounting piece (51) may not penetrate the bottom wall (11). In the mounting metal fitting (5) of the third aspect, in the second aspect, the third mounting piece (53) has a recess (531). The recess (531) is recessed along the bottom wall (11) in a plan view. With this configuration, when the third mounting piece (53) is bonded to the substrate (7) by soldering, the solder easily diffuses in the recess (531), and fillets are easily formed. Therefore, when this structure is used, when the third mounting piece (53) is bonded to the substrate (7), the third mounting piece (53) can be more firmly bonded to the substrate (7). However, this configuration is not necessary, even if the third mounting piece (53) does not have a recess (531). In the mounting metal fitting (5) of the fourth aspect, in any of the first to third aspects, the mounting member (50) is a first mounting piece (51) and a second mounting piece (52). It is assumed that one piece (54) has a plurality of pieces (54). With this structure, the multi-array chip (54) can withstand the force applied to the connector (101). Therefore, the strength of the casing (1) can be increased by using this structure, compared with the case where there is only one piece (54). However, this configuration is not necessary, and the mounting member (50) may have only one piece (54). In the mounting metal fitting (5) of the fifth aspect, in the fourth aspect, the mounting member (50) has two pieces (54). The two modules (54) are attached to a pair of first peripheral walls (121), respectively. The pair of first peripheral walls (121) are held in a state in which a plurality of contact pieces (2) are arranged side by side in the arrangement direction in the peripheral wall (12). With this configuration, the two panels (54) can withstand forces applied to the pair of first peripheral walls (121). Therefore, with this configuration, the strength of the pair of first peripheral walls (121) can be increased, and as a result, the strength of the casing (1) can be increased. However, this configuration is not necessary, and the panel (54) may be attached to a portion other than the pair of first peripheral walls (121) in the peripheral wall (12). In the mounting metal fitting (5) of the sixth aspect, in the fourth aspect, the mounting member (50) has three pieces (54). The three panels (54) are respectively provided in the peripheral wall (12), and a pair of the first peripheral wall (121) and the second peripheral wall (122). The pair of first peripheral walls (121) are held in a state in which the plurality of contact pieces (2) are arranged in parallel in the arrangement direction. The second peripheral wall (122) connects the ends of the pair of first peripheral walls (121) to each other. With this configuration, the external force applied to a pair of the first peripheral wall (121) and the second peripheral wall (122) can be received by the three panels (54). Therefore, if this structure is used, the strength of the pair of first peripheral walls (121) and the second peripheral walls (122) can be increased, and as a result, the strength of the casing (1) can be increased. However, this configuration is not necessary, and the panel (54) may be mounted on a portion other than the pair of the first surrounding wall (121) and the second surrounding wall (122) of the surrounding walls (12). (7) In the mounting metal fitting (5) of the seventh aspect, in any of the first to sixth aspects, the mounting member (50) further has a joint portion (511) that is bonded to the substrate (7). The joint portion (511) is provided at one end of the bottom wall (11) side of the first mounting piece (51). With this configuration, when the mounting member (50) is bonded to the substrate (7), the portion of the substrate (7) that is not bonded to the first mounting piece (51) and the second mounting piece (52) are not It is fixed to the substrate (7). Therefore, if this structure is used, the stress applied to the mounting member (50) when the connector (101) is connected to other connectors (102) can be reduced compared to the case where the mounting member (50) has an opposite side portion. . That is, in the configuration in which the mounting member (50) has the opposite side portion, the first mounting piece (51) and the opposite side portion are sandwiched by the peripheral wall (12). In this configuration, when the opposite side portion is bonded to the substrate (7), and when the connector (101) is connected to another connector (102), the first mounting piece (51) and the second mounting piece (52) ) And the opposite part are difficult to elastically deform. Therefore, in this configuration, it is difficult to exclude an external force applied to the connector (101). In addition, in a configuration in which the mounting member (50) does not have an opposite side portion, when the connector (101) is connected to another connector (102), the first mounting piece (51) and the second mounting piece (52) Easy to deform elastically. Therefore, in this configuration, it is easy to exclude the force applied to the connector (101), and as a result, the stress applied to the mounting member (50) can be reduced. Furthermore, with this configuration, it is possible to reduce the residual stress of the mounting member (50) compared to the case where the opposite side portion is bonded to the substrate (7). However, this configuration is not necessary, even if the mounting member (50) does not have the joint portion (511).连接 The connector (101) of the eighth aspect includes the mounting metal fitting (5) of any one of the first to seventh aspects, the housing (1), and a plurality of contacts (2). With this structure, a connector (101) capable of reducing the volume ratio of the metal fitting (5) to the housing (1) can be realized. In the connector (101) of the ninth aspect, in the eighth aspect, the casing (1) has an exposed portion (111). The exposed portion (111) is recessed in the thickness direction of the bottom wall (11), so that a part of the mounting member (50) is exposed from the casing (1). With this configuration, when a part of the mounting member (50) exposed from the exposed portion (111) is welded to the substrate (7), the mounting metal fitting (5) can be more firmly fixed to The base plate (7) can further enhance the strength of the metal fitting (5). Furthermore, when the mounting metal fitting (5) is electrically connected to a part of the contacts (2) at the same potential, the impedance of the mounting metal fitting (5) can be reduced. However, this configuration is not necessary, even if the case (1) does not have the exposed portion (111). In the connector (101) of the tenth aspect, in the eighth or ninth aspect, the housing (1) further has a thick wall portion (18). The thick-walled portion (18) covers the bottom wall (11) and the boundary of the mounting member (50) that penetrates the bottom wall (11) and is exposed to the inside of the surrounding wall (12). With this configuration, when the connector (101) is connected to another connector (102), the thick wall portion (18) can withstand the force applied to the connector (101). Therefore, if this structure is used, compared with the case without a thick wall portion (18), it is difficult for the external force to be transmitted to the bottom wall (11) and the mounting member (50). As a result, the strength of the casing (1) can be improved. . However, this configuration is not necessary, even if the case (1) does not have a thick portion (18). In the connector (101) of the eleventh aspect, in any one of the eighth to tenth aspects, the housing (1) further has a protruding wall (19). The protruding wall (19) protrudes from the connecting surface (S3) to the thickness direction of the casing (1), and is opposed to one end of the outer surface (S2) side of the second mounting piece (52). With this configuration, when an external force is applied from the outside of the housing (1) toward the end (here, the second end) of the connection surface (S3) of the second mounting piece (52). The protruding wall (19) is susceptible to this external force. Therefore, with this configuration, it is difficult for the external force to be transmitted to the second mounting piece (52), and as a result, the second mounting piece (52) is difficult to deform. However, this configuration is not necessary, even if the case (1) does not have a protruding wall (19). Furthermore, the plug of the twelfth aspect is used as a plug of the other connector (102), and is connected to the socket of the eighth to eleventh aspects as the connector (101). The plug has a plurality of other connector-side contacts (2A) of a plurality of contacts (2) electrically connected to the socket. With this structure, a plug capable of reducing the volume ratio of the metal fitting (5) to the casing (1) can be realized. Furthermore, the connection system (100) of the thirteenth aspect includes the connector (101) and other connectors (102) of any of the eighth to eleventh aspects. The other connector (102) has a plurality of other connector-side contacts (2A) electrically connected to the plurality of contacts (2). With this configuration, a connection system (100) capable of reducing the volume ratio of the metal fitting (5) to the casing (1) can be realized. However, regardless of the eighth to eleventh aspects of the connector (101), the connector (101) may be configured to be connected to another connector (102) of any one of the following first to sixteenth aspects. That is, if the connector (101) is configured to be connected to another connector (102) in any of the following first to thirteenth aspects, any one of the eighth to eleventh aspects is not necessary. Appearance.其他 The other connector (102) of the first aspect includes a plurality of contacts (2A), a housing (1A), and a connection terminal (6). The housing (1A) holds a plurality of contacts (2A). The connection terminal (6) has conductivity, and can be electrically connected to a conductive conductive portion of the connector (101). The casing (1A) has a bottom wall (11A) and a surrounding wall (12A) surrounding the bottom wall (11A). The peripheral wall (12A) includes a pair of first peripheral walls (121A) and a pair of second peripheral walls (122A). At least one of the pair of first peripheral walls (121A) holds the plurality of contacts (2A) side by side in the arrangement direction. The pair of second peripheral walls (122A) respectively connect ends of the pair of first peripheral walls (121A). A part of the connection terminal (6) is held by the second peripheral wall (122A) of at least one of the pair of second peripheral walls (122A). At least a part of the portion of the connection terminal (6) that is not held by the case (1A) is a portion that is in contact with the conductive portion, and can be elastically deformed. With this configuration, when the connector (101) is connected to other connectors (102), not only the plurality of contacts (2A) but also the connection terminal (6) can be electrically connected to the connector (101). Conductive part. Furthermore, with this configuration, in a state where the connector (101) is connected to another connector (102), the connection terminal (6) comes into contact with the elastic portion of the connector (101) while giving elastic force to the surface. Therefore, with this configuration, it is possible to improve the reliability of the electrical connection with the connector (101). Furthermore, in the other connector (102) of the second aspect, in the first aspect, the plurality of contact terminals (2A) are provided on each of the pair of first peripheral walls (121A). With this configuration, the connector (101) can be electrically connected to other connectors (102) regardless of the direction along the first direction (left-right direction) of the connector (101). However, this configuration is not necessary, even if the plurality of contacts (2A) are provided on only one of the pair of first peripheral walls (121A). Furthermore, in the other connector (102) of the third aspect, in the first or second aspect, the connector (6) is provided on each of the pair of second peripheral walls (122A). With this configuration, the connector (101) can be electrically connected to other connectors (102) regardless of the direction along the first direction (left-right direction) of the connector (101). However, this configuration is not necessary, even if the connection terminal (6) is provided on only one of the pair of second peripheral walls (122A). Furthermore, in the other connector (102) of the fourth aspect, in any of the first to third aspects, the connection terminal (6) has a main piece (61), an opposing piece (62), and Link piece (63). The main piece (61) is held by the case (1A). The facing piece (62) faces the main piece (61) at intervals, and is exposed from the second peripheral wall (122A). The connecting piece (63) connects the ends of the main piece (61) and the opposing piece (62) to each other. If this structure is used, since there is a gap between the main sheet (61) and the opposing sheet (62), the opposing sheet (62) is easily deformed elastically, and it is difficult to deform plastically. However, this structure is not necessary. For example, even if the main piece (61) and the connecting piece (63) are held in the case (1A), only the facing piece (62) is not held in the case (1A). Yes. In addition, even if the connection terminal (6) does not have the main piece (61), the connecting piece (63) is held in the housing (1A), and only the facing piece (62) is not held in the housing (1A). . Furthermore, in the other connector (102) in the fifth aspect, in the fourth aspect, the connection terminal (6) further has a joint portion (611) which is joined to the substrate (7). The joint portion (611) is provided at one end of the bottom wall (11A) side of the main piece (61). With this configuration, the connection terminal (6) can be fixed to the substrate (7) by bonding the bonding portion (611) to the substrate (7) by soldering. Therefore, the strength of the connection terminal (6) can be increased compared with the case where the joint portion (611) is not provided by this configuration. However, this configuration is not necessary, even if the connection terminal (6) does not have the joint portion (611). That is, even if the connection terminal (6) is not fixed to the board | substrate (7). Furthermore, in the other connector (102) of the sixth aspect, in the fifth aspect, the main piece (61) has an extension piece (613). The extension piece (613) extends from one end of the bottom wall (11A) side of the main piece (61) along the bottom wall (11A). The joint portion (611) is further provided on the extension piece (613). With this configuration, only the portion of the extension piece (613) increases the area of the portion of the connection terminal (6) that is fixed to the substrate (7). Therefore, with this configuration, the connection terminal (6) can be more firmly fixed to the substrate (7) than the case without the extension piece (613), and the strength of the connection terminal (6) can be further improved. However, this configuration is not necessary, even if the main sheet (61) does not have an extension sheet (613). In addition, even when the main piece (61) has an extension piece (613), the extension piece (613) may not be provided with the joint portion (611). Furthermore, the other connector (102) of the seventh aspect further includes a mounting metal fitting (5A) attached to the housing (1A) in any of the first to sixth aspects. The second peripheral wall (122A) provided with the connection terminal (6) in the pair of second peripheral walls (122A) is an insert-molded product in which the mounting metal fitting (5A) is an insert. With this configuration, since the strength of the second peripheral wall (122A) is increased by the mounting metal fitting (5A), the stress applied to the second peripheral wall (122A) on which the mounting metal fitting (5A) is mounted, Difficult to communicate to the connection terminal (6) provided on the second peripheral wall (122A). Therefore, with this configuration, the connection terminal (6) is difficult to plastically deform. Furthermore, if this configuration is adopted, since the shape of the connection terminal (6) is difficult to change, the positional displacement of the connection terminal (6) to the second peripheral wall (122A) can be reduced. In addition, when the mounting metal fitting (5A) is fixed to the substrate (7) by, for example, welding, the second peripheral wall (122A) is also fixed to the substrate (7), so it is installed on the second peripheral wall. The connection terminal (6) of (122A) is easily held by the second peripheral wall (122A). However, this configuration is not necessary, and even if the metal fitting (5A) is pushed into the second peripheral wall (122A), it may be mounted on the second peripheral wall (122A). In addition, even if the other connector (102) does not include a mounting metal fitting (5A). Furthermore, in the other connector (102) of the eighth aspect, in the fourth aspect, the facing piece (62) has a protrusion protruding in a direction parallel to the pair of second peripheral walls (122A). Ministry (621). With this configuration, when the connector (101) is connected to another connector (102), the connection terminal (6) is easier to contact the connector (101) than when the connector (101) does not have the protruding portion (621). Of conductive parts. Therefore, with this configuration, the contact resistance of the contact portion between the connection terminal (6) and the conductive portion can be reduced, and a current can easily flow to the connection terminal (6). Moreover, when this structure is used, the possibility that a contact failure by a foreign material will generate | occur | produce can be reduced. That is, when the connector (101) is connected to another connector (102), the protruding portion (621) moves while rubbing against the surface of the conductive portion, so that foreign matter adhering to the surface of the protruding portion (621) and the conductive portion can be removed. . However, this configuration is not necessary, even if the connection terminal (6) does not have the protruding portion (621). Furthermore, in the other connector (102) of the ninth aspect, in the eighth aspect, the protruding portion (621) extends in a direction orthogonal to the bottom wall (11A). If this configuration is adopted, the contact area between the protruding portion (621) and the conductive portion of the connector (101) is increased. Therefore, with this configuration, the contact resistance of the contact portion between the connection terminal (6) and the conductive portion can be further reduced, and a current can easily flow to the connection terminal (6). In addition, when this structure is used, when the connector (101) is connected to another connector (102), the protrusion (621) does not extend in a direction orthogonal to the bottom wall (11A), and the protrusion protrudes. The area of the surface of the friction conductive part (621) increases. Therefore, if this structure is used, it is easy to remove the foreign matter adhering to the surface of the protrusion part (621) and the conductive part, and the possibility of a contact failure by a foreign matter can be reduced more. However, this configuration is not necessary, and the protruding portion (621) does not need to extend in a direction orthogonal to the bottom wall (11A). Furthermore, in the other connector (102) in the tenth aspect, in the fourth aspect, the connection terminal (6) has a plurality of opposed pieces (62). With this configuration, the reliability of the electrical connection between the connecting terminal (6) and the conductive portion of the connector (101) can be improved compared to the case where the connecting terminal (6) has only one facing piece (62). . However, this configuration is not necessary, even if the connection terminal (6) has only one facing piece (62). Furthermore, in the other connector (102) of the eleventh aspect, in any of the first to tenth aspects, the connection terminal (6) is partially pushed into the pair of second peripheral walls. At least one second peripheral wall (122A) of (122A) is held by the casing (1A). With this configuration, a simple process such as pushing the connection terminal (6) into the second peripheral wall (122A) can provide a portion of the connection terminal (6) that can be elastically deformed in the housing (1A). However, this configuration is not necessary, even if the connection terminal (6) is held in the case (1A) by other means. Furthermore, in the other connector (102) of the twelfth aspect, in the fourth aspect, the connection terminal (6) is partially pushed into at least one of the pair of second peripheral walls (122A). The second peripheral wall (122A) is held by the casing (1A). The main piece (61) includes an avoiding portion (610). The avoidance portion (610) is provided at a corner portion of one end of the main piece (61) that is connected to the connection piece (63), and faces the direction opposite to the direction in which the connection terminal (6) is pushed into the second peripheral wall (122A) Sunken. With this configuration, when the main piece (61) is pushed into the second peripheral wall (122A), a part of the second peripheral wall (122A) is difficult to be cut. Therefore, if this structure is used, it is difficult to generate a foreign object due to the second peripheral wall (122A) being cut, and it is difficult for the foreign object to adhere to the connection terminal (6). However, this configuration is not necessary, even if the main sheet (61) does not have the avoiding portion (610). Furthermore, in the other connector (102) of the thirteenth aspect, in the fifth aspect, the main piece (61) further has a recess (612). The recess (612) is provided at one end of the bottom wall (11A) side of the main sheet (61), and is recessed from one end of the bottom wall (11) side toward the other end. With this configuration, when the bonding portion (611) is bonded to the substrate (7) by soldering, the solder easily diffuses in the recessed portion (612), and corner fillets are easily formed. Therefore, in this configuration, the main sheet (61) can be more firmly joined to the substrate (7). However, this configuration is not necessary, even if the main sheet (61) does not have a recess (612). Furthermore, in the other connector (102) of the fourteenth aspect, in any of the first to tenth and thirteenth aspects, the housing (1A) is a connection terminal (6) as an insert Plug-in molded products. With this structure, a part of the housing (1A) can be provided with a connection terminal (6) that can be elastically deformed by a simple process such as insert molding. However, this configuration is not necessary, even if the connection terminal (6) is held in the case (1A) by other means. Furthermore, in the other connector (102) of the fifteenth aspect, in the fourth aspect, the housing (1A) is a plug-in molded product in which the connection terminal (6) is an insert. The housing further has a wall portion (15) provided between the main piece (61) and the facing piece (62). With this configuration, even if it is assumed that the facing piece (62) is excessively elastically deformed, the facing piece (62) is connected to the wall portion (15), and the movement of the facing piece (62) is restricted. That is, with this configuration, the possibility of the elastic deformation of the facing piece (62) can be reduced. However, this configuration is not necessary, even if the housing (1A) does not have the wall portion (15). Furthermore, in the other connector (102) of the sixteenth aspect, in any of the first to fifteenth aspects, the contact (2A) of one part of the plurality of contacts (2A) is configured and connected The terminal (6) is electrically connected at the same potential. With this structure, the connection terminal (6) can be made to function as a part of the contact (2A). Furthermore, with this configuration, since the current flowing to a part of the contact (2A) is branched to the connection terminal (6), the rated current of the contact (2A) including a part of the connection terminal (6) can be increased. For example, suppose that the connection terminal (6) is electrically connected to the power terminal (4A) at the same potential. In this configuration, the connection terminal (6) functions as a power terminal (4A). Furthermore, in this configuration, since the current is divided into the connection terminal (6) and the power terminal (4A), the rated current of the power terminal (4A) including the connection terminal (6) can be increased. Here, when the connection terminal (6) and the power terminal (4A) are electrically connected at the same potential, and the connection terminal (6) has a protruding portion (621), or has a direction orthogonal to the bottom wall (11A) The extended protrusion (621) has the following advantages. That is, in these cases, the contact resistance of the contact portion of the conductive portion of the connection terminal (6) and the connector (101) is reduced by the protruding portion (621), so that the current easily flows to the connection terminal (6). ). Therefore, the current easily flows evenly to the connection terminal (6) and the power terminal (4A), and is concentrated on the power terminal (4A), making it difficult for the current to flow. As a result, the rated current of the power supply terminal (4A) including the connection terminal (6) can be further increased. Above, the connector 101, other connectors 102, and the connection system 100 related to the implementation type will be described. However, the embodiment described above is only one of various embodiments of the present invention. If the above-mentioned implementation mode can achieve the purpose of the present invention, various changes can be made in accordance with the design and the like.

1‧‧‧shell

11‧‧‧ bottom wall

111‧‧‧ exposed

12‧‧‧ surrounding wall

121‧‧‧ the first surrounding wall

122‧‧‧ 2nd surrounding wall

18‧‧‧ thick wall

19‧‧‧ protruding wall

2‧‧‧ contact

2A‧‧‧Other connector side contacts

5‧‧‧Install metal fittings

50‧‧‧Mounting components

51‧‧‧The first installation piece

511‧‧‧ junction

52‧‧‧Second mounting piece

53‧‧‧3rd mounting piece

531‧‧‧concave

54‧‧‧group

7‧‧‧ substrate

100‧‧‧ Connected System

101‧‧‧ connector

102‧‧‧Other connectors

S1‧‧‧ inside

S2‧‧‧ Outside

S3‧‧‧Connecting surface

FIG. 1 is a perspective view of a connector related to an embodiment. FIG. 2 is a perspective view of a state where the connector of the above is reversed. Figure 3 is a front view of the same connector. Figure 4 is a rear view of the same connector. FIG. 5A is a perspective view of a state where the connector is omitted from the connector. 5B is a cross-sectional view of a contact member in the same connector. Figures 6A and 6B are oblique views of the metal fittings installed in other connectors, respectively. FIG. 7 is a perspective view of another connector related to the implementation type. FIG. 8 is a perspective view of a state where the other connectors are reversed. Figure 9 is a front view of the other connectors as above. Figure 10 is the rear view of other connectors as above. FIG. 11A is a perspective view of a state where the other connector-side housing is omitted from the other connectors, and FIG. 11B is a cross-sectional view of other connector-side contacts in the other connectors. FIG. 12A is a perspective view of a connection terminal among other connection terminals in the same connector. FIG. 12B is a top view of the connection terminals in the other connectors; FIG. 12C is a side view of the connection terminal in the other connectors; FIG. 13 is a cross-sectional view showing a state before other connectors are connected to the connector in the connection system related to the embodiment. FIG. 14 is a sectional view showing a state where other connectors are connected to the connector in the same connection system. FIG. 15A is a cross-sectional view of a part of the state before the connection terminal contacts the mounting metal fitting in the same connection system as above. 15B is a cross-sectional view of a part of a state in which the connection terminal is in contact with the mounting metal fitting in the same connection system as above. Fig. 16 is a perspective view of another connector related to the first modification of the embodiment. FIG. 17 is a perspective view of a state where the other connectors are reversed in the same manner as before. FIG. 18 is a perspective view of a state where other connectors related to the second modification of the embodiment are reversed. FIG. 19A is a perspective view of a connection terminal in another connector related to the third modification of the embodiment. FIG. 19B is a top view of the connection terminals in the other connectors; FIG. 19C is a side view of the connection terminal in the other connectors; 20A is a perspective view of a connection terminal in another connector related to the fourth modification of the embodiment. FIG. 20B is a top view of the connection terminals in the other connectors; FIG. 20C is a side view of the connection terminal in the other connectors; FIG. 21A is a perspective view of a connection terminal in another connector related to the fifth modification of the embodiment. FIG. 21B is a top view of the connection terminals in the other connectors; FIG. 21C is a side view of the connection terminal in the other connectors; 22A is a perspective view of a connection terminal in another connector related to the sixth modification of the embodiment. FIG. 22B is a top view of the connection terminals in the other connectors; FIG. 22C is a side view of the connection terminal in the other connectors; FIG. 23 is a perspective view of a part of the connector according to the seventh modification of the embodiment, in which a state where the front and rear sides are reversed is omitted. FIG. 24 is a perspective view of another connector related to the eighth modification of the embodiment. FIG. 25 is a perspective view of a state where the other connectors are reversed in the same manner as before. Figure 26 is a front view of other connectors as above. Figure 27 is a rear view of the other connectors as above. FIG. 28 is a perspective view of another connector related to the ninth modification of the embodiment. FIG. 29 is a perspective view of a state where the other connectors are reversed in the same manner as before. FIG. 30 is a perspective view of a state where other connectors related to the tenth modification of the embodiment are reversed. FIG. 31 is a perspective view of a part of a state in which the back and forth are reversed in other connectors related to the eleventh modification of the embodiment. FIG. 32A is a perspective view omitting a part of the connector related to the modification of the embodiment. Fig. 32B is a perspective view of a mounting metal fitting in the same connector.

Claims (13)

A mounting metal fitting includes: a mounting member mounted on a housing having a plurality of contacts, the housing having: a bottom wall; and a surrounding wall surrounding the bottom wall, the mounting member having: a first mounting piece Which covers at least a part of the inner side surface of the surrounding wall; 2 a second mounting piece which is connected to the first mounting piece and covers at least a part of a connecting surface connecting the outer side surface of the surrounding wall and the inner side surface; and the mounting member There is no portion located on the opposite side of the first mounting piece with the surrounding wall interposed therebetween. The mounting metal fitting as described in claim 1, wherein the first mounting piece penetrates the bottom wall in the thickness direction of the bottom wall, The mounting member further has a third mounting piece, which is from the bottom of the first mounting piece. One end of the wall side extends along the bottom wall. The mounting metal fitting as described in claim 2, wherein the above-mentioned third mounting piece has a recess recessed along the bottom wall in a plan view. The mounting metal fittings as set forth in any one of claims 1 to 3, wherein: (1) The above-mentioned mounting member is a set of the first mounting piece and the second mounting piece, and has a plurality of the above-mentioned pieces. The mounting metal fittings as set forth in claim 4, wherein: the above-mentioned mounting member has 2 pieces of the above-mentioned pieces, the above-mentioned 2 pieces of pieces are respectively provided on a pair of first surrounding walls, and the pair of first surrounding walls are the above-mentioned surrounding walls The middle is held in a state where the above-mentioned plural contacts are juxtaposed in the arrangement direction. The mounting metal fitting as described in claim 4, wherein the mounting member has three of the above-mentioned pieces, the three pieces of the pieces are respectively provided on one of the surrounding walls to the first surrounding wall and the second surrounding wall, the one The first peripheral wall system is held in a state where the plurality of contact elements are arranged in parallel in the arrangement direction, and the second peripheral wall system connects ends of the pair of first peripheral walls to each other. The mounting metal fitting as set forth in any one of claims 1 to 3, wherein the mounting member further has a joint portion to be bonded to the substrate, and the joint portion is provided at one end of the bottom wall side of the first mounting piece. . A connector having: 安装 the mounting metal fitting as set forth in any one of claims 1 to 7; the above-mentioned housing; and the above-mentioned plural contacts. The connector as set forth in claim 8, wherein the housing further has an exposed portion that is recessed in a thickness direction of the bottom wall to expose a part of the mounting member from the housing. The connector according to claim 8 or 9, wherein the housing further has a thick wall portion covering the bottom wall, and the mounting member penetrates the bottom wall and is exposed to the inside of the surrounding wall. Realm. The connector according to claim 8 or 9, wherein the housing further has a protruding wall which protrudes from the connecting surface to the thickness direction of the housing, and the outer side of the second mounting piece. Opposite end. A plug which is connected to a socket which is a connector as set forth in any one of claims 8 to 11, and is used as a plug of another connector, having one of the above-mentioned plural contacts which are electrically connected to the socket. Plural other connector-side contacts. A connection system comprising: the connector as set forth in any one of claims 8 to 11; and other connectors having a plurality of other connector-side contacts electrically connected to the plurality of contacts.