JP6767704B2 - Connector and connecting device - Google Patents

Description

The present invention generally relates to connectors and connecting devices, and more particularly to connectors and connecting devices for electrically connecting electronic components to each other.

Conventionally, a connector for electrically connecting electronic components is known, and is disclosed in, for example, Patent Document 1. The socket constituting the connector described in Patent Document 1 includes a metal socket side terminal (contact), a metal socket side holding metal fitting (mounting metal fitting), and a resin socket housing (housing). .. The socket side holding bracket is attached to increase the strength of the socket housing. Both the socket-side terminal and the socket-side holding bracket are fixed to the conductor wiring pattern of the circuit wiring board (board) by soldering.

International Publication No. 2015/063817

By the way, in a connector as in the above conventional example, it is desired to reduce the flux of the flux contained in the solder from flowing to the contact when the mounting bracket is joined to the substrate by soldering.

The present invention has been made in view of the above points, and when the mounting bracket is soldered to the substrate, a connector and a connecting device capable of reducing the flow of flux contained in the solder to the contacts are provided. The purpose is to provide.

The connector of the first aspect of the present invention includes a plurality of contacts, a housing, and a mounting bracket. In the housing, the plurality of contacts are arranged side by side in one direction . The mounting bracket is attached to one end of the housing in one direction . The mounting bracket has a joint portion that is exposed from the back surface of the housing facing the substrate and is joined to the substrate. Each of the plurality of contacts has an exposed portion exposed from the back surface of the housing. The housing has a protrusion, another protrusion, and a recess. The protruding portion is provided between the exposed portion and the joint portion of the contact on the most one end side in the one direction among the plurality of contacts, and projects from the back surface. The other protruding portion is a virtual boundary that intersects in the one direction when viewed from the protruding direction in which the protruding portion protrudes, and is a first boundary passing through the exposed portion on the most one end side, and the plurality of said portions. It is provided between the contact and the second boundary passing through the exposed portion on the farthest end side in the one direction, and projects from the back surface. The recess is provided on the back surface between the exposed portion and the protruding portion of at least a part of the plurality of contacts, and the facing surface of the protruding portion facing the substrate and the other The protrusion is recessed with respect to each of the facing surfaces facing the substrate . Both the protrusion and the other protrusion are made of the same material as the housing. The recess is provided between the protrusion and the other protrusion, and its position relative to the back surface where the joint is exposed is fixed.

In the connector of the second aspect of the present invention, in a first aspect, the front Symbol recess, is provided between the exposed portion and the projecting portion of the most one end side.

In a third aspect of the connector of the present invention, in a first aspect, the front Symbol recess, is provided between the projecting portion and the exposed portion of the part of the contact of the plurality of contacts.

In the connector of the fourth aspect of the present invention, in the first or second aspect, the housing further has a fitting portion into which another connector is fitted. The protruding portion is provided at a position corresponding to the fitting portion on the back surface.

In the connector of the fifth aspect of the present invention, in any one of the first to fourth aspects, the dimension of the joint projecting from the back surface is equal to or greater than the dimension of the projecting portion projecting from the back surface.

In the connector of the sixth aspect of the present invention, in the first aspect, the other protruding portion has a first portion and a second portion. The first portion is provided at the first boundary and projects from the back surface. The second portion is connected to the first portion in a state of protruding from the back surface, and is provided at the second boundary and projects from the back surface.

In the connector of the seventh aspect of the present invention, in any one of the first to sixth aspects, the housing further has a groove. The groove portion is provided between the joint portion and the projecting portion, and is recessed with respect to the facing surface of the projecting portion.

Connector of the eighth aspect of the present invention, in the first to seventh any aspect of having two said protruding portions. The housing further has a recess. The recess is provided between the two protrusions are recessed with respect to the opposing surface of said two protrusions.

Connector of the ninth aspect of the present invention, in any of the embodiments of the first to eighth, having two said other protrusion. The housing is provided between the two other protrusions and has another recess that is recessed with respect to the facing surface of the two other protrusions facing the substrate.

The connector according to the tenth aspect of the present invention includes the connector according to any one of the first to ninth aspects and another connector. The other connector has a plurality of other connector-side contacts that are electrically connected to the plurality of contacts.

INDUSTRIAL APPLICABILITY According to the present invention, when the mounting bracket is soldered to the substrate, the flux contained in the solder can be reduced from flowing to the contacts.

FIG. 1A is a rear view of the connector according to the first embodiment of the present invention. FIG. 1B is a cross-sectional view of a part of the connector according to the first embodiment of the present invention. FIG. 2 is a perspective view of the same connector. FIG. 3 is a perspective view of the same connector in an inverted state. FIG. 4 is a front view of the same connector. FIG. 5 is a cross-sectional view showing a state before another connector is connected to the connector in the connecting device according to the first embodiment of the present invention. FIG. 6 is a cross-sectional view showing a state in which another connector is connected to the connector in the same connection device. FIG. 7 is a perspective view of another connector in the same connection device. FIG. 8 is a perspective view showing a state in which the front and rear of the other connector in the same connection device are inverted. FIG. 9 is a front view of another connector in the same connection device. FIG. 10 is a rear view of another connector in the same connection device. FIG. 11A is a rear view of the connector of the comparative example. FIG. 11B is a cross-sectional view of a part of the connector of the comparative example. FIG. 12A is a plan view showing a soldering state after mounting the connector according to the first embodiment of the present invention on a substrate. FIG. 12B is a plan view showing a soldering state after the connector of the comparative example is mounted on the substrate. FIG. 13A is a rear view of the connector according to the first modification of the first embodiment of the present invention. FIG. 13B is a rear view of the connector according to the second modification of the first embodiment of the present invention. FIG. 13C is a rear view of the connector according to the third modification of the first embodiment of the present invention. FIG. 14 is a rear view of the connector according to the fourth modification of the first embodiment of the present invention. FIG. 15 is a rear view of the connector according to the fifth modification of the first embodiment of the present invention. FIG. 16 is a perspective view of the connector according to the second embodiment of the present invention. FIG. 17 is a rear view of the same connector. FIG. 18 is a rear view of the connector according to the modified example of the second embodiment of the present invention.

(1) Outline Hereinafter, the connector 100 of the first embodiment will be described with reference to FIGS. 1A to 5. The connector 100 of this embodiment is attached to a substrate such as a printed wiring board or a flexible printed wiring board. The connector 100 is used for electrically connecting a plurality of substrates mounted on a mobile terminal such as a smartphone. Of course, the purpose is not to limit the use of the connector 100, and the connector 100 may be used for an electronic device other than a mobile terminal such as a camera module. Further, the connector 100 is not limited to the use of electrically connecting a plurality of substrates, and electrically connects a plurality of components such as between a substrate and a display or between a substrate and a battery. It may be used as long as it is used.

As shown in FIGS. 1A to 5, the connector 100 includes a plurality of contacts 1, a housing 2, and a mounting bracket 3. The housing 2 holds a plurality of contacts 1. The mounting bracket 3 is attached to the housing 2. The thickness direction of the housing 2 is, for example, several mm or less. The length of the housing 2 in the longitudinal direction is, for example, a dozen millimeters. Further, the dimension of the housing 2 in the lateral direction is, for example, several mm. Further, the interval at which the plurality of contacts 1 are lined up, that is, the pitch is, for example, a few millimeters. In the present embodiment, the plurality of contacts 1 are arranged at equal pitches, but they may be arranged at irregular pitches.

The mounting bracket 3 has a joint portion 30. The joint portion 30 is exposed from the back surface 20 facing the substrate 5 (see FIGS. 5 and 6) of the housing 2 and is joined to the substrate 5. Each of the plurality of contacts 1 has an exposed portion 10 exposed from the back surface 20 of the housing 2. Further, each of the plurality of contacts 1 has a terminal piece 14 (described later) bonded to the substrate 5. Therefore, the connector 100 is mounted on the substrate 5 by joining the joint portion 30 of the mounting bracket 3 and the terminal pieces 14 of each of the plurality of contacts 1 to the substrate 5 by soldering.

As shown in FIGS. 1A and 1B, the housing 2 has a protruding portion 26 and a recessed portion 27. The protruding portion 26 is provided between the exposed portion 10 and the joint portion 30 of at least a part of the contact 1 among the plurality of contacts 1, and protrudes from the back surface 20. The recessed portion 27 is provided between the exposed portion 10 and the protruding portion 26 of at least a part of the contact 1 among the plurality of contacts 1, and is recessed with respect to the facing surface 260 of the protruding portion 26 facing the substrate 5. There is.

In the connector 100 of the present embodiment, when the mounting bracket 3 is bonded to the substrate 5 by soldering, the flux 61 (see FIG. 12A) contained in the solder 6 (see FIG. 12A) melts and tries to spread. Then, in the connector 100 of the present embodiment, even if the flux 61 contained in the solder 6 flows to the contact 1 side, the flux 61 is unlikely to spread due to the portion between the substrate 5 and the recessed portion 27. Therefore, in the connector 100 of the present embodiment, when the mounting bracket 3 is soldered to the substrate 5, the flux 61 contained in the solder 6 can be reduced from flowing to the contact 1.

(2) Details Hereinafter, the configuration of the connector 100 of the present embodiment will be described in detail. Hereinafter, the thickness direction of the housing 2 will be described as the front-rear direction, the lateral direction of the housing 2 as the vertical direction, and the longitudinal direction of the housing 2 as the left-right direction. It should be noted that FIGS. 1A to 18 show arrows indicating these directions (up, down, left, right, front, back), but these arrows are described only for the purpose of assisting the explanation. It is not too much and has no substance. Further, the above-mentioned provision of the direction is not intended to limit the usage mode of the connector 100 of the present embodiment.

The connector 100 of the present embodiment is a socket (female connector), and as shown in FIGS. 1A to 6, a plurality of (20 in this case) contacts 1, a housing 2, and a pair of mounting brackets 3 It has.

The contact 1 is a terminal for signal transmission, and is formed by bending a strip-shaped metal plate. Further, the contact 1 is gold-plated. As shown in FIGS. 5 and 6, the contact 1 has a spring piece 11, a rising piece 12, a falling piece 13, and a terminal piece 14, and is configured by integrally forming these. There is.

The tip of the spring piece 11 is curved in a horseshoe shape, and the spring piece 11 is configured to bend in the lateral direction (vertical direction) of the housing 2. Further, the spring piece 11 is oriented toward the contact 1A by being pushed by the contact 1A in a state where the contact 1A (described later) of the other connector 200 (described later) is inserted into the fitting portion 24 (described later). It is configured to generate the elastic force of.

The rising piece 12 is formed in the shape of a long plate in the thickness direction (front-back direction) of the housing 2. The first end (rear end) of the rising piece 12 is integrally formed with the spring piece 11. The rising piece 12 is configured to come into contact with the contact 1A in a state where the contact 1A of the other connector 200 is inserted into the fitting portion 24.

Further, the rising piece 12 is integrally formed with a protrusion 121 projecting toward the spring piece 11. In a state where the contact 1A of the other connector 200 is inserted into the fitting portion 24, the protrusion 121 is aligned with the protrusion 161 of the contact 1A (described later) in the front-rear direction and is located in front of the protrusion 161 of the contact 1A. .. Therefore, unless the other connector 200 is pulled out from the fitting portion 24 with a force equal to or higher than a predetermined value, the protrusion 161 of the contact 1A is caught by the protrusion 121 of the contact 1, and the connection state between the connector 100 and the other connector 200 is released. Not done. That is, the protrusion 121 of the contact 1 and the protrusion 161 of the contact 1A form a lock mechanism capable of releasing the connection state between the connector 100 and the other connector 200 by applying a force equal to or higher than a predetermined value.

The falling piece 13 is formed in the shape of a long plate in the thickness direction (front-back direction) of the housing 2. The first end (front end) of the falling piece 13 is curved in an inverted U shape, and is integrally formed with the second end (front end) of the rising piece 12.

The terminal piece 14 is formed in a plate shape that is long in the lateral direction (vertical direction) of the housing 2. The terminal piece 14 is integrally formed with the second end (rear end) of the falling piece 13. Further, the tip of the terminal piece 14 is exposed from the housing 2 on one end side (rear side) of the housing 2 in the thickness direction. One surface (rear surface) of the terminal piece 14 is a bonding surface that is bonded to the substrate 5 by, for example, soldering.

As shown in FIGS. 1A to 5, the housing 2 is formed of a resin material having an insulating property in a flat rectangular parallelepiped shape long in the left-right direction. In the present embodiment, the housing 2 is insert-molded using a pair of mounting brackets 3 as insert products. The housing 2 has a bottom wall 21, a peripheral wall 22, a base portion 23, a fitting portion 24, a storage portion 25, a protruding portion 26, and a recessed portion 27. The protruding portion 26 and the recessed portion 27 will be described in detail in "(3) Protruding portion and the recessed portion". The bottom wall 21 has a plate shape long in the left-right direction and constitutes the bottom portion of the housing 2. The rear surface of the bottom wall 21 is the back surface 20 of the housing 2.

The peripheral wall 22 projects forward from the peripheral edge of the bottom wall 21 and is formed in a rectangular frame shape in a plan view. That is, the peripheral wall 22 is configured to surround the periphery of the bottom wall 21. More specifically, the peripheral wall 22 is composed of a pair of first side walls 221 and a pair of second side walls 222. The pair of first side walls 221 is a pair of peripheral walls 22 along the longitudinal direction of the housing 2. Each of the pair of first side walls 221 stores a plurality of contacts 1 in a plurality of storage portions 25, which will be described later, so that the plurality of contacts 1 are held in a state of being arranged in one direction (left-right direction). .. That is, each of the pair of first side walls 221 holds a plurality of contacts 1 in a state of being arranged side by side in the arrangement direction (left-right direction). In the present embodiment, the pair of first side walls 221 each hold 10 contacts 1.

In each of the pair of first side wall 221s, side pieces 32 (described later) of the mounting bracket 3 are attached to each of both ends in the longitudinal direction (left-right direction). Further, a main piece 31 (described later) of the mounting bracket 3 is attached to each of the pair of second side walls 222. That is, one mounting bracket 3 is composed of two side pieces 32 and one main piece 31 on one end (left end) side in the longitudinal direction (left-right direction) of the housing 2. Similarly, one mounting bracket 3 is composed of two side pieces 32 and one main piece 31 on the other end (right end) side of the housing 2 in the longitudinal direction.

The base portion 23 has a rectangular parallelepiped shape that is long in the left-right direction, and projects forward from the center of the bottom wall 21. The portion surrounded by the bottom wall 21, the peripheral wall 22, and the base portion 23 constitutes a fitting portion 24 into which the other connector 200 is fitted. Specifically, the pair of first side walls 221A (described later) of the other connector 200 and the pair of second side walls 222A (described later) of the other connector 200 are fitted to the fitting portion 24. In other words, the other connector 200 is fitted to the fitting portion 24. As a result, the other connector 200 is connected to the connector 100.

The housing 2 is formed with a plurality of (here, 20) storage portions 25 corresponding to a plurality of contacts 1 and one-to-one. Each of the plurality of storage portions 25 is formed so as to penetrate the bottom wall 21 in the thickness direction (front-rear direction). The plurality of storage portions 25 are provided so as to be bisected on both the upper and lower sides of the base portion 23. The plurality of storage portions 25 on the upper and lower sides of the base portion 23 are all provided side by side at substantially equal intervals along the longitudinal direction (left-right direction) of the housing 2. Each of the plurality of contacts 1 is stored in the storage unit 25 by being pushed into the storage unit 25 from the rear.

Each of the plurality of contacts 1 is housed in the storage portion 25, and a part of the contact 1 is exposed to the fitting portion 24. Specifically, the portion of the contact 1 on the tip end side of the spring piece 11 is exposed from the inside of the base portion 23 to the fitting portion 24. Further, a part of the rising piece 12 of the contact 1 is exposed to the fitting portion 24 from the inside of the first side wall 221. Further, each of the plurality of contacts 1 is partially exposed from the bottom wall 21 in a state of being stored in the storage portion 25. Specifically, a portion of the contact 1 along the bottom wall 21 of the spring piece 11 is exposed so as to penetrate the bottom wall 21. That is, it can be said that each of the plurality of contacts 1 has an exposed portion 10 (a part of the spring piece 11) exposed from the back surface 20 of the housing 2.

Therefore, when the other connector 200 is connected to the connector 100, the portion exposed to the fitting portion 24 of each of the plurality of contacts 1 comes into contact with each of the plurality of contacts 1A of the other connector 200. As a result, the plurality of contacts 1 of the connector 100 are electrically connected to the plurality of contacts 1A of the other connector 200, respectively.

Each of the pair of mounting brackets 3 is formed by bending a plate-shaped metal plate made of, for example, a copper alloy. The pair of mounting brackets 3 are provided at both ends (left and right ends) of the housing 2 in the longitudinal direction, respectively. The mounting bracket 3 has a function of increasing the strength of the housing 2 by being provided at one end of the housing 2 in the longitudinal direction. The mounting bracket 3 is composed of one main piece 31, a pair of side pieces 32, and a pair of bottom pieces 33.

Further, each of the pair of side pieces 32 is integrally formed with a protrusion 321 that projects inward in the lateral direction (vertical direction) of the housing 2. In a state where the mounting bracket 3A of the other connector 200 described later is inserted into the fitting portion 24, the protrusion 321 is aligned in the front-rear direction with the protrusion 351 (described later) of the mounting bracket 3A, and is formed from the protrusion 351 of the mounting bracket 3A. Is also located in front. Therefore, unless the other connector 200 is pulled out from the fitting portion 24 with a force equal to or higher than a predetermined value, the protrusion 351 of the mounting bracket 3A is caught by the protrusion 321 of the mounting bracket 3, so that the connector 100 and the other connector 200 are connected to each other. Is not released. That is, the mounting bracket 3 and the mounting bracket 3A form a lock mechanism capable of releasing the connection state between the connector 100 and the other connector 200 by applying a force equal to or higher than a predetermined value.

Further, in the present embodiment, with the other connector 200 connected to the connector 100, the portion exposed to the fitting portion 24 of the mounting bracket 3 comes into contact with the mounting bracket 3A of the other connector 200. Therefore, it is also possible to electrically connect the mounting bracket 3 to the mounting bracket 3A. That is, the mounting bracket 3 (mounting bracket 3A) can also be used as a power supply terminal 4 (power supply terminal 4A) for electrically connecting to the power supply.

In the following description, of the pair of mounting brackets 3, the mounting bracket 3 attached to one end (left end) of the housing 2 will be described as an example, but the same applies to the mounting bracket 3 attached to the other end (right end) of the housing 2. It is a configuration. The main piece 31 is attached to the second side wall 222 of one (left side) of the pair of second side walls 222. One side piece 32 of the pair of side pieces 32 is integrally formed with one end (lower end) of the main piece 31, and the longitudinal direction of the first side wall 221 of one (lower) of the pair of first side walls 221. It is attached to one end (left-right direction) where a plurality of contacts 1 are not arranged. The other side piece 32 of the pair of side pieces 32 is integrally formed with the other end (upper end) of the main piece 31, and the length of the other (upper) first side wall 221 of the pair of first side wall 221s. It is attached to one end of the direction where a plurality of contacts 1 are not arranged. Each of the pair of bottom pieces 33 is integrally formed with the rear end of the main piece 31, and is bent along the bottom wall 21 of the housing 2.

One of the bottom pieces 33 of the pair of bottom pieces 33 is held in the housing 2 so as to be aligned with the plurality of contacts 1 on the lower side of the base portion 23 in one direction (left-right direction). Further, the other bottom piece 33 of the pair of bottom pieces 33 is held in the housing 2 so as to be aligned with the plurality of contacts 1 on the upper side of the base portion 23 in one direction (left-right direction).

One surface (rear surface) of each of the pair of bottom pieces 33 is exposed from the bottom wall 21 of the housing 2, and is joined to the substrate 5 by soldering. Further, each rear surface of the pair of side pieces 32 is exposed from the bottom wall 21 of the housing 2, and is joined to the substrate 5 by soldering. That is, the mounting bracket 3 has a joint portion 30 (rear surface of the bottom piece 33 and a rear surface of the side piece 32) exposed from the back surface 20 of the housing 2 facing the substrate 5 and joined to the substrate 5. I can say. The dimension protruding from the back surface 20 of the joint portion 30 is, for example, about 0.02 mm.

As shown in FIGS. 5 and 6, the connector 100 configured as described above is mounted on a substrate 5 (here, a first substrate 51) built in an electronic device such as a smartphone. Further, the other connector 200 corresponding to the connector 100 is mounted on another board 5 (here, the second board 52) also built in the electronic device.

Then, when the connector 100 is connected to the other connector 200, the first conductor wired on the first substrate 51 and the second conductor wired on the second substrate 52 are electrically connected. Specifically, the connector 100 is connected to the other connector 200 by electrically connecting the plurality of contacts 1 of the connector 100 to the plurality of contacts 1A of the other connector 200. That is, in the present embodiment, the connector 100 and the other connector 200 constitute the connecting device 300. In other words, the connecting device 300 includes a connector 100 and another connector 200.

Hereinafter, the other connector 200 corresponding to the connector 100 of the present embodiment will be described with reference to FIGS. 5 to 10. In addition, in FIGS. 5 and 6, the other connector 200 is shown in a state where the front and back are inverted. Therefore, in the following, the other connector 200 will be described based on the directions specified in FIGS. 7 to 10.

In the present embodiment, the other connector 200 is a header (male connector), and has a plurality of (here, 20) other connector side contacts 1A, another connector side housing 2A, and another connector side mounting bracket 3A. Be prepared. In the following description, in principle, the other connector side contact 1A, the other connector side housing 2A, and the other connector side mounting bracket 3A are simply referred to as "contact 1A", "housing 2A", and "mounting bracket 3A", respectively.

The contact 1A is a terminal for signal transmission, and is formed by bending a strip-shaped metal plate. Further, the contact 1A is gold-plated. As shown in FIGS. 5 and 6, the contact 1A has a contact piece 15, a hanging piece 16, and a terminal piece 17, and is configured by integrally forming these. The contact piece 15 is formed in the shape of a long plate in the thickness direction (front-back direction) of the housing 2A. The contact piece 15 is arranged on the peripheral wall 22A (described later) on a surface facing the fitting portion 24A (described later). The contact piece 15 is configured to come into contact with the contact 1 of the connector 100 in a state where the contact 1 of the connector 100 is inserted into the fitting portion 24A.

Further, the contact piece 15 is provided with a recess 151 that is recessed in a direction away from the fitting portion 24A. The recess 151 is configured so that a part of the contact 1 of the connector 100 is fitted in the state where the contact 1 of the connector 100 is inserted into the fitting portion 24. That is, the contact 1 of the connector 100 and the recess 151 of the contact piece 15 form a lock mechanism capable of releasing the connection state between the connector 100 and the other connector 200 by applying a force equal to or higher than a predetermined value.

The hanging piece 16 is formed in the shape of a long plate in the thickness direction (front-back direction) of the housing 2A. The hanging piece 16 is arranged along the outer surface (upper surface or lower surface) of the first side wall 221A. One end (front end) of the hanging piece 16 is curved in an inverted U shape, and is integrally formed with the first end (front end) of the contact piece 15. Further, the hanging piece 16 is integrally formed with a protrusion 161 projecting along the thickness direction (vertical direction) of the hanging piece 16. As described above, the protrusion 161 is hooked on the protrusion 121 of the contact 1 to form a locking mechanism.

The terminal piece 17 is formed in a plate shape that is long in the lateral direction (vertical direction) of the housing 2A. The first end of the terminal piece 17 is integrally formed with the second end (rear end) of the contact piece 15. Further, the second end of the terminal piece 17 is exposed from the bottom wall 21 of the housing 2A on one end side (rear side) of the housing 2A in the thickness direction. One surface (rear surface) of the terminal piece 17 is a bonding surface that is bonded to the substrate 5 by, for example, soldering. That is, it can be said that each of the plurality of contacts 1A has an exposed portion 10A (rear surface of the terminal piece 17) exposed from the back surface 20A of the housing 2A.

The housing 2A is formed of a resin material having an insulating property in a flat rectangular parallelepiped shape long in the left-right direction. The housing 2A has a bottom wall 21A, a peripheral wall 22A, a fitting portion 24A, a protruding portion 26A, and a recessed portion 27A. The protruding portion 26A and the recessed portion 27A will be described in detail in "(3) Protruding portion and recessed portion". The bottom wall 21A has a plate shape long in the left-right direction and constitutes the bottom portion of the housing 2. The rear surface of the bottom wall 21A is the back surface 20A of the housing 2A.

The peripheral wall 22A projects forward from the peripheral edge of the bottom wall 21A, and is formed in a rectangular frame shape in a plan view. That is, the peripheral wall 22A is configured to surround the bottom wall 21A. More specifically, the peripheral wall 22A is composed of a pair of first side wall 221A and a pair of second side wall 222A. The pair of first side wall 221A is a pair of peripheral walls 22A along the longitudinal direction of the housing 2A. The portion surrounded by the bottom wall 21A and the peripheral wall 22A constitutes a fitting portion 24A into which the connector 100 is fitted. Specifically, the base portion 23 of the connector 100 is fitted into the fitting portion 24A.

The housing 2A is formed by insert molding with a plurality of contacts 1A and a pair of mounting brackets 3A as insert products. Half of the plurality of contacts 1A are integrally provided on the upper first side wall 221A. Further, the other half of the plurality of contacts 1A is integrally provided on the lower first side wall 221A. That is, the housing 2A holds a plurality of contacts 1A in a state of being arranged side by side in the arrangement direction (left-right direction).

Each of the pair of mounting brackets 3A is formed of a metal material such as a copper alloy. The pair of mounting brackets 3A are provided at both ends (left and right ends) of the housing 2A in the longitudinal direction, respectively. The mounting bracket 3A has a function of increasing the strength of the housing 2A by being provided at one end of the housing 2A in the longitudinal direction. The mounting bracket 3A is composed of a pair of terminal portions 35. In the present embodiment, the mounting bracket 3A constitutes a locking mechanism together with the mounting bracket 3 as described above. Further, the mounting bracket 3A can also be used as the power supply terminal 4A as described above.

In the following description, of the pair of mounting brackets 3A, the mounting bracket 3A attached to one end (left end) of the housing 2A will be described as an example, but the same applies to the mounting bracket 3A attached to the other end (right end) of the housing 2A. It is a configuration. Like the contact 1A, each of the pair of terminal portions 35 has a contact piece 15, a hanging piece 16, and a terminal piece 17, and these are integrally formed. In FIGS. 7 to 10, the contact piece 15 of the terminal portion 35 is not shown.

The terminal piece 17 of one of the pair of terminal portions 35 is held in the housing 2A so as to be aligned with the plurality of contacts 1A under the fitting portion 24A in one direction (left-right direction). .. Further, the terminal piece 17 of the other terminal portion 35 of the pair of terminal portions 35 is held by the housing 2A so as to be aligned with the plurality of contacts 1A on the upper side of the fitting portion 24A in one direction (left-right direction). There is.

In each of the pair of terminal portions 35, one surface (rear surface) of the terminal piece 17 is exposed from the bottom wall 21A of the housing 2A and is joined to the substrate 5 by soldering. That is, it can be said that the mounting bracket 3A has a joint portion 30A (rear surface of the terminal piece 17 of the terminal portion 35) that is exposed from the back surface 20A of the housing 2A facing the substrate 5 and is joined to the substrate 5.

(3) Protruding portion and recessed portion First, the protruding portion 26 and the recessed portion 27 of the connector 100 will be described in detail with reference to FIGS. 1A and 1B. Both the protruding portion 26 and the recessed portion 27 are provided on the back surface 20 of the housing 2. Here, the back surface 20 of the housing 2 is divided into one first region A1 and two second regions A2. The first region A1 is an region in which the exposed portions 10 of the plurality of contacts 1 are arranged. The second region A2 is a region in which the joint portions 30 of the pair of mounting brackets 3 are arranged. In the second region A2, an region to which the ejector pin for pushing out the housing 2 as a molded product from the mold is pressed is secured. It is optional whether or not a region to which the ejector pin is pressed is provided in the second region A2. The surface of the first region A1 facing the substrate 5 projects rearward with respect to the surface of the two second regions A2 facing the substrate 5. In other words, the surface of the first region A1 facing the substrate 5 projects in the direction toward the substrate 5 as compared with the surface of the two second regions A2 facing the substrate 5. That is, on the back surface 20 of the housing 2, a step is formed at the boundary between the first region A1 and the second region A2.

Each of the two second regions A2 is provided with a pair of protrusions 26 and recesses 27. In the following description, a pair of protruding portions 26 and recessed portions 27 provided in the second region A2 on the one end (right end) side of the housing 2 will be described as an example, but the second region on the other end (left end) side of the housing 2 will be described as an example. The pair of protruding portions 26 and the recessed portions 27 provided in A2 have the same configuration. Each of the pair of projecting portions 26 is integrally formed with the housing 2, and projects rearward from one surface (rear surface) of the second region A2 of the back surface 20. That is, each of the pair of protrusions 26 is made of the same material as the housing 2. Further, the pair of projecting portions 26 are provided at predetermined intervals in the lateral direction (vertical direction) of the housing 2.

One (upper) protrusion 26 of the pair of protrusions 26 is arranged in the vicinity of the upper bottom piece 33 of the mounting bracket 3 in the second region A2. Further, the other (lower) protruding portion 26 of the pair of protruding portions 26 is arranged in the vicinity of the lower bottom piece 33 of the mounting bracket 3 in the second region A2. That is, each of the pair of protruding portions 26 is provided between the first region A1 and the joint portion 30. In other words, each of the pair of protruding portions 26 is provided between all the exposed portions 10 of the plurality of contacts 1 and the joint portion 30.

Further, in the present embodiment, the pair of protruding portions 26 are provided at positions corresponding to the fitting portions 24 on the back surface 20. Specifically, of the bottom wall 21 which is one of the components of the fitting portion 24, a pair of protruding portions 26 are formed on the rear surface of a portion of the bottom wall 21 on the one end (right end) side in the longitudinal direction (left-right direction). Is placed.

The facing surface (rear surface) 260 of the protruding portion 26 facing the substrate 5 is substantially flush with the facing surface of the first region A1 with the substrate 5. The region between the pair of protrusions 26 and the first region A1 in the second region A2 is recessed forward with respect to the facing surface 260 and the facing surface of the first region A1 with the substrate 5. In other words, the facing surface with the substrate 5 in the region between the pair of protrusions 26 and the first region A1 in the second region A2 is the facing surface with the facing surface 260 and the substrate 5 in the first region A1. In comparison, it is recessed in the direction opposite to the direction toward the substrate 5. That is, the back surface 20 of the housing 2 is provided with a recessed portion 27 provided between all the exposed portions 10 of the plurality of contacts 1 and the pair of protruding portions 26 and recessed with respect to the facing surface 260. There is.

Further, the facing surface 260 of the protruding portion 26 is substantially flush with the rear surface of the bottom piece 33 of the mounting bracket 3. The region between the protruding portion 26 and the bottom piece 33 in the second region A2 is recessed forward with respect to the facing surface 260 and the rear surface of the bottom piece 33. In other words, the facing surface of the second region A2 between the protrusion 26 and the bottom piece 33 with respect to the substrate 5 is the direction toward the substrate 5 as compared with the facing surface 260 and the rear surface of the bottom piece 33. It is dented in the opposite direction. That is, the housing 2 is provided between the joint portion 30 and the protruding portion 26, and has a groove portion 28 recessed with respect to the facing surface 260.

Next, the protruding portion 26A and the recessed portion 27A of the other connector 200 will be described in detail with reference to FIGS. 8 and 10. Both the protruding portion 26A and the recessed portion 27A are provided on the back surface 20A of the housing 2A. Here, the back surface 20A of the housing 2A is divided into one first region A11 and two second regions A12. The first region A11 is an region in which the exposed portions 10A of the plurality of contacts 1A are arranged. The second region A12 is an region in which the joint portions 30A of the pair of mounting brackets 3A are arranged. The second region A12 is provided with a region A3 that is recessed forward.

Each of the two second regions A12 is provided with a protrusion 26A and a recess 27A. In the following description, the protruding portion 26A and the recessed portion 27A provided in the second region A12 on the one end (right end) side of the housing 2A will be described as an example, but the second region A12 on the other end (left end) side of the housing 2A will be described. The protruding portion 26A and the recessed portion 27A provided have the same configuration.

The protruding portion 26A is provided between the first region A11 and the joint portion 30A. In other words, the protruding portion 26A is provided between all the exposed portions 10A of the plurality of contacts 1A and the joint portion 30A. In the present embodiment, as shown in FIGS. 8 and 10, the protruding portion 26A is formed in a U shape in a plan view, but it is not intended to be limited to this shape. Further, the recessed portion 27A is provided between the first region A11 and the protruding portion 26A, and is recessed forward with respect to the facing surface 260A of the protruding portion 26A with the substrate 5. In other words, the surface of the recessed portion 27A facing the substrate 5 is recessed in the direction opposite to the direction toward the substrate 5 as compared with the facing surface 260A of the protruding portion 26A with the substrate 5. The bottom surface of the recessed portion 27A is the rear surface of the bottom wall 21A and is the back surface 20A of the housing 2A. That is, the back surface 20A of the housing 2A is provided with a recessed portion 27A provided between all the exposed portions 10A of the plurality of contacts 1A and the protruding portion 26A and recessed with respect to the facing surface 260A. The facing surface of the first region A11 with the substrate 5 and the facing surface 260A are substantially flush with each other. Further, the region of the second region A12 excluding the region A3 and the recessed portion 27A protrudes backward from the back surface 20A. That is, the region of the second region A12 excluding the region A3 and the recessed portion 27A is the protruding portion 26A.

(4) Effect Hereinafter, the effect of the connector 100 of the present embodiment will be described with reference to the connector 400 of the comparative example. However, since the basic configuration of the connector 400 of the comparative example is common to the connector 100 of the present embodiment, the description of the common points will be omitted. In the connector 400 of the comparative example, as shown in FIGS. 11A and 11B, one protrusion 26 is provided in each of the two second regions A2 instead of the pair of protrusions 26. Then, in each of the two second regions A2, the protrusion 26 is formed integrally with the first region A1. That is, in the connector 400 of the comparative example, the recessed portion 27 is not provided between the protruding portion 26 and the first region A1.

Here, for example, when the connector is mounted on the substrate by reflow type soldering, the flux contained in the solder is melted by exposing the solder to a high temperature environment. The molten flux spreads to some extent around the joint along the substrate, but there is a possibility that the molten flux infiltrates into a relatively narrow portion between the substrate and the connector due to a capillary phenomenon or the like and further spreads.

When the connector 400 of the comparative example is mounted on the substrate 5, each joint portion 30 of the pair of mounting brackets 3 and each terminal piece 14 of the plurality of contacts 1 are joined to the substrate 5 by soldering. In the connector 400 of the comparative example, in the second region A2, the space between the substrate 5 and the protruding portion 26 is narrower than that of other parts. Therefore, the flux 61 contained in the solder 6 fixed to the joint portion 30 may spread between the second region A2 and the substrate 5, and may infiltrate between the substrate 5 and the protrusion 26 due to a capillary phenomenon or the like. is there. In the connector 400 of the comparative example, since the facing surface 260 of the protruding portion 26 and the facing surface of the first region A1 with the substrate 5 are substantially flush with each other, the infiltrated flux 61 is caused by the capillary phenomenon or the like in the first region A1. There is a possibility that it will flow into. In this case, if the flux 61 adheres to the contact 1, the elasticity of the contact 1 may be lost, and the original function of the contact 1 may not be exhibited.

On the other hand, in the connector 100 of the present embodiment, a recessed portion 27 is provided between the protruding portion 26 and the first region A1. The space between the substrate 5 and the recessed portion 27 is wider than that between the substrate 5 and the protruding portion 26. Therefore, even if the flux 61 invades between the substrate 5 and the protruding portion 26 due to the capillary phenomenon or the like, the flow path of the flux 61 expands at the portion between the substrate 5 and the recessed portion 27, so that the capillary phenomenon or the like occurs. It becomes difficult to occur. In other words, it is difficult for the flux 61 that has penetrated between the substrate 5 and the protruding portion 26 to spread due to the portion between the substrate 5 and the recessed portion 27. Therefore, in the connector 100 of the present embodiment, it is possible to reduce the flow of the flux 61 into the region (first region A1) where the plurality of contacts 1 are arranged, as compared with the connector 400 of the comparative example.

Here, the inventors conducted an experiment to verify the spread of the flux 61 after mounting the connector on the substrate. The experiment was carried out under the condition that the adverse conditions were met among the assumed soldering conditions. The "bad conditions" referred to here are, for example, a case where the reflow temperature is relatively high, a case where the solder 6 contains a flux 61 which is relatively easy to permeate, and a case where the reflow type soldering is performed in a state where the oxygen concentration is low. And so on. Hereinafter, the experimental results will be described with reference to FIGS. 12A and 12B. FIG. 12A is a diagram in which a part of a photograph in a state where the housing 2 is peeled off from the substrate 5 is converted into grayscale after the connector 100 of the present embodiment is mounted on the substrate 5. Further, FIG. 12B is a diagram in which a part of a photograph in a state where the housing 2 is peeled off from the substrate 5 is converted into gray scale after the connector 400 of the comparative example is mounted on the substrate 5. In both FIGS. 12A and 12B, a plurality of contacts 1 remain on the substrate 5 in a soldered state.

As shown in FIG. 12B, in the connector 400 of the comparative example, the flux 61 contained in the solder 6 (see the region surrounded by the broken line B3) fixed to the joint portion 30 is the region where the plurality of contacts 1 are arranged. (See the area surrounded by the dashed line B4). On the other hand, as shown in FIG. 12A, in the connector 100 of the present embodiment, the flux 61 contained in the solder 6 (see the region surrounded by the broken line B1) fixed to the joint portion 30 is around the pair of protrusions 26. (Refer to the area surrounded by the broken line B2), and does not flow into the area where the plurality of contacts 1 are arranged.

As described above, in the connector 100 of the present embodiment, when the mounting bracket 3 is soldered to the substrate 5, even if the flux 61 contained in the solder 6 flows to the contact 1, the flux 61 is the substrate. It is difficult to spread due to the portion between 5 and the recess 27. Therefore, in the connector 100 of the present embodiment, when the mounting bracket 3 is soldered to the substrate 5, the flux 61 contained in the solder 6 can be reduced from flowing to the contact 1.

By the way, in the present embodiment, the distance between the substrate 5 and the recessed portion 27 is set to such a distance that the capillary phenomenon or the like is unlikely to occur when the connector 100 of the present embodiment is mounted on the substrate 5. Is preferable. In this case, even if the flux 61 invades between the substrate 5 and the protruding portion 26 due to a capillary phenomenon or the like, the flux 61 is less likely to spread at the portion between the substrate 5 and the recessed portion 27.

Further, in the present embodiment, the facing surface 260 of the protruding portion 26 and the joint portion 30 are substantially flush with each other, but the purpose is not limited to this. For example, the joint portion 30 may project backward from the facing surface 260 of the protruding portion 26. That is, the dimension protruding from the back surface 20 of the joint portion 30 is preferably equal to or larger than the dimension protruding from the back surface 20 of the protruding portion 26, but the purpose is not limited to this.

Further, in the present embodiment, the protruding portion 26 is made of the same material as the housing 2, but the present invention is not limited to this. For example, the protruding portion 26 may be formed integrally with the mounting bracket 3. That is, the protruding portion 26 may be formed of the same material as the mounting bracket 3.

Further, in the present embodiment, the connector 100 is a socket, but the purpose is not limited to this. For example, the connector 100 may be a header. That is, the other connector 200 of this embodiment may be the connector 100.

(5) Modification Example Hereinafter, connectors 101 to 105 of the first modification to the fifth modification will be described as a modification of the connector 100 of the present embodiment. However, since the basic configurations of the connectors 101 to 105 of the first modification to the fifth modification are the same as those of the connector 100 of the present embodiment, the description of the common points will be omitted. Further, the connectors 101 to 105 of the first modification to the fifth modification can be used in the connecting device 300 instead of the connector 100 of the present embodiment.

(5.1) First Modified Example In the connector 101 of the first modified example of the present embodiment, as shown in FIG. 13A, one protruding portion 26 is provided with two second portions instead of being provided with a pair of protruding portions 26. It is provided in each of the regions A2. Note that FIG. 13A shows only one end (right end) of the housing 2 in the longitudinal direction. The protruding portion 26 is formed in a substantially triangular shape in a plan view. Specifically, the projecting portion 26 has a shape in which two rectangles having different lengths in the longitudinal direction (vertical direction) and a trapezoid sandwiched between the two rectangles are combined in a plan view. A recessed portion 27 is provided between the protruding portion 26 and the first region A1. Further, a groove 28 is provided between the protrusion 26 and the pair of bottom pieces 33, respectively. That is, a groove 28 is provided between the joint 30 and the protrusion 26.

In this modification, as in the present embodiment, when the mounting bracket 3 is soldered to the substrate 5, the flux 61 contained in the solder 6 can be reduced from flowing to the contact 1.

(5.2) Second Modified Example In the connector 102 of the second modified example of the present embodiment, as shown in FIG. 13B, one protruding portion 26 is provided with two second portions instead of being provided with a pair of protruding portions 26. It is provided in each of the regions A2. Note that FIG. 13B shows only one end (right end) of the housing 2 in the longitudinal direction. The projecting portion 26 is formed in a long rectangular shape along the lateral direction (vertical direction) of the housing 2 in a plan view. The protruding portion 26 is arranged in a region sandwiched between the pair of side pieces 32. Further, a groove 28 is provided between the protrusion 26 and the pair of bottom pieces 33, respectively. That is, a groove 28 is provided between the joint 30 and the protrusion 26.

In this modification, as in the present embodiment, when the mounting bracket 3 is soldered to the substrate 5, the flux 61 contained in the solder 6 can be reduced from flowing to the contact 1.

(5.3) Third Modified Example In the connector 103 of the third modified example of the present embodiment, as shown in FIG. 13C, one protruding portion 26 is added to the pair of protruding portions 26, and the three protruding portions 26 are added. Are provided in each of the two second regions A2. Note that FIG. 13C shows only one end (right end) of the housing 2 in the longitudinal direction. The three protrusions 26 are all formed in a long rectangular shape along the longitudinal direction (left-right direction) of the housing 2 in a plan view. Further, the three projecting portions 26 are arranged at intervals along the lateral direction (vertical direction) of the housing 2 in the region sandwiched between the pair of side pieces 32. The protrusion 26 located at the center of the three protrusions 26 has a longer dimension in the longitudinal direction (left-right direction) than the other two protrusions 26.

Further, a groove 28 is provided between each of the three protrusions 26 and the pair of bottom pieces 33. Similarly, of the three protrusions 26, a groove 28 is provided between the upper protrusion 26 and the lower protrusion 26 and the pair of side pieces 32, respectively. That is, a groove 28 is provided between the joint 30 and the protrusion 26.

In this modification, as in the present embodiment, when the mounting bracket 3 is soldered to the substrate 5, the flux 61 contained in the solder 6 can be reduced from flowing to the contact 1.

(5.4) Fourth Modified Example In the connector 104 of the fourth modified example of the present embodiment, as shown in FIG. 14, recesses 29 are provided in each of the two second regions A2. Note that FIG. 14 shows only one end (right end) of the housing 2 in the longitudinal direction. The recess 29 is provided in the region where the ejector pin is pressed in the second region A2, and has a circular shape in a plan view. Further, the recess 29 is recessed forward with respect to the bottom surface of the recess 27. That is, when the connector 104 is mounted on the substrate 5, the distance between the recess 29 and the substrate 5 is longer than the distance between the recess 27 and the substrate 5. The recess 29 is formed, for example, by pressing an ejector pin. In addition, the recess 29 may be formed by, for example, molding with a mold.

In this modification, as in the present embodiment, when the mounting bracket 3 is soldered to the substrate 5, the flux 61 contained in the solder 6 can be reduced from flowing to the contact 1. Further, since this modification has the recess 29, the flux 61 is less likely to spread at the portion between the substrate 5 and the recess 29.

(5.5) Fifth Deformation Example As shown in FIG. 15, the connector 105 of the fifth modification of the present embodiment has a plurality of (here, five) protrusions 26 and a plurality of (here, four) connectors 105. ) With a recessed portion 27. Each of the plurality of projecting portions 26 has a rectangular shape in a plan view, and is arranged in a region sandwiched between the plurality of upper contacts 1 and the lower plurality of contacts 1 in the first region A1. Similar to the plurality of protrusions 26, the plurality of recessed portions 27 are arranged in the first region A1 in a region sandwiched between the plurality of upper contacts 1 and the plurality of lower contacts 1. In this modification, no step is formed at the boundary between the first region A1 and the second region A2 on the back surface 20 of the housing 2.

In this modification, the plurality of protruding portions 26 and the plurality of recessed portions 27 are provided alternately side by side along the arrangement direction (left-right direction) of the plurality of contacts 1. Here, the plurality of protrusions 26 are, respectively, in order from one end (right end) side in the longitudinal direction (left-right direction) of the housing 2, the first protrusion 261 and the second protrusion 262, the third protrusion 263, and the fourth protrusion. It is referred to as a portion 264 and a fifth protruding portion 265. Further, here, the plurality of recessed portions 27 are designated as a first recessed portion 271, a second recessed portion 272, a third recessed portion 273, and a fourth recessed portion 274, respectively, in order from one end side in the longitudinal direction of the housing 2.

In this modification, the plurality of projecting portions 26 are all provided between the exposed portion 10 and the joint portion 30 of some of the contacts 1 among the plurality of contacts 1. For example, the first protruding portion 261 is provided between the exposed portion 10 of the remaining contacts 1 excluding the pair of contacts 1 located on the rightmost side of the plurality of contacts 1 and the joint portion 30 on the right side. .. Further, in the present modification, the plurality of recessed portions 27 are all provided between the exposed portion 10 and the joint portion 30 of some of the contacts 1 among the plurality of contacts 1. For example, the first recessed portion 271 is provided between the exposed portion 10 of the remaining contacts 1 excluding the two pairs of contacts 1 located on the rightmost side of the plurality of contacts 1 and the first protruding portion 261. There is.

In this modification, even if the flux 61 invades the portion between the first protrusion 261 and the substrate 5, the portion between the first recess 271 adjacent to the first protrusion 261 and the substrate 5 , Flux 61 is hard to spread. Further, even if the flux 61 penetrates into the portion between the second protruding portion 262 and the substrate 5, the flux is formed by the portion between the second recessed portion 272 and the substrate 5 adjacent to the second protruding portion 262. 61 is hard to spread. That is, in this modification, since the plurality of protruding portions 26 and the plurality of recessed portions 27 are provided, even if the flux 61 penetrates into the region where some of the contacts 1 are arranged, the remaining contacts 1 are arranged. It is possible to reduce the flow of the flux 61 to the region where the flux 61 is formed.

(Embodiment 2)
(1) Details Hereinafter, the configuration of the connector 106 of the second embodiment will be described with reference to FIGS. 16 and 17. However, since the basic configuration of the connector 106 of the present embodiment is common to the connector 100 of the first embodiment, the description of the common points will be omitted. Further, the connector 106 of the present embodiment can be used in the connecting device 300 instead of the connector 100 of the first embodiment.

Unlike the connector 100 of the first embodiment, the connector 106 of the present embodiment has 26 contacts 1 as a plurality of contacts 1. Further, in the present embodiment, two contacts 1 of the plurality of contacts 1 each function as power supply terminals 4. Specifically, the contact 1 located on the rightmost side of the plurality of contacts 1 arranged on the upper side of the base portion 23 and the contact 1 located on the leftmost side of the plurality of contacts 1 arranged on the lower side of the base portion 23. The contact 1 functions as a power supply terminal 4.

Here, a large current flows through the power supply terminal 4 as compared with the current flowing through the contact 1. Therefore, in the present embodiment, the impedance of the power supply terminal 4 is increased by making the width dimension of the contact 1 as the power supply terminal 4 (the dimension in the longitudinal direction (horizontal direction) of the housing 2) larger than the width dimension of the other contacts 1. Is smaller than the impedance of contact 1.

Further, in the present embodiment, the mounting bracket 3 is different from the mounting bracket 3 of the first embodiment. Specifically, in the present embodiment, the mounting bracket 3 is composed of one main portion 36, a pair of side portions 37, and a pair of connecting portions 38. In the following description, of the pair of mounting brackets 3, the mounting bracket 3 attached to one end (left end) of the housing 2 will be described as an example, but the same applies to the mounting bracket 3 attached to the other end (right end) of the housing 2. It is a configuration.

The main portion 36 is attached to the second side wall 222 of one (left side) of the pair of second side walls 222. A pair of joining pieces 361 are provided on the trailing edge of the main portion 36. Each of the pair of joint pieces 361 is exposed from the bottom wall 21 of the housing 2, and is formed by being bent in a direction (leftward) along the bottom wall 21 from the rear end edge of the main portion 36. Each one surface (rear surface) of the pair of bonding pieces 361 is a bonding portion 30 bonded to the substrate 5 by soldering.

One (lower) side portion 37 of the pair of side portions 37 is one end portion in the longitudinal direction (horizontal direction) of one (lower) first side wall 221 of the pair of first side wall 221s, and a plurality of side portions 37. The contact 1 is attached to a portion where it is not arranged. The other (upper) side portion 37 of the pair of side portions 37 is one end portion in the longitudinal direction of the other (upper) first side wall 221 of the pair of first side wall 221s, and a plurality of contacts 1 are arranged. It is attached to the part that is not. The rear surfaces of each of the pair of side portions 37 are joint portions 30 that are exposed from the bottom wall 21 of the housing 2 and are joined to the substrate 5 by soldering.

One (lower) connecting portion 38 of the pair of connecting portions 38 connects the main portion 36 and one (lower) side portion 37 of the pair of side portions 37. Further, the other (upper) connecting portion 38 of the pair of connecting portions 38 connects the main portion 36 and the other (upper) side portion 37 of the pair of side portions 37. A part of each of the pair of connecting portions 38 is exposed from the bottom wall 21 of the housing 2. Here, in the present embodiment, the portion exposed from the bottom wall 21 of each of the pair of connecting portions 38 can also function as the protruding portion 26.

The connector 106 of the present embodiment has a plurality of (here, four) protrusions 26 and a plurality of (here, three) recesses 27, in addition to the protrusions 26 composed of the above-mentioned connecting portions 38. And have. Each of the plurality of projecting portions 26 has a rectangular shape in a plan view, and is arranged in a region sandwiched between the plurality of upper contacts 1 and the lower plurality of contacts 1 in the first region A1. Similar to the plurality of protrusions 26, the plurality of recessed portions 27 are arranged in the first region A1 in a region sandwiched between the plurality of upper contacts 1 and the plurality of lower contacts 1. In the present embodiment, on the back surface 20 of the housing 2, no step is formed at the boundary between the first region A1 and the second region A2.

In the present embodiment, the plurality of protruding portions 26 and the plurality of recessed portions 27 are provided alternately side by side along the arrangement direction (left-right direction) of the plurality of contacts 1. Here, the plurality of protrusions 26 are, respectively, in order from one end (right end) side in the longitudinal direction (left-right direction) of the housing 2, the first protrusion 261 and the second protrusion 262, the third protrusion 263, and the fourth. The protrusion 264 is used. Further, here, the plurality of recessed portions 27 are the first recessed portion 271, the second recessed portion 272, and the third recessed portion 273, respectively, in order from one end side in the longitudinal direction of the housing 2.

In the present embodiment, the plurality of projecting portions 26 are all provided between the exposed portion 10 and the joint portion 30 of some of the contacts 1 among the plurality of contacts 1. For example, the first protruding portion 261 includes an exposed portion 10 of the remaining contacts 1 excluding the pair of contacts 1 (including the power supply terminal 4) located on the rightmost side of the plurality of contacts 1 and a joint portion 30 on the right side. It is provided between. Further, in the present embodiment, the plurality of recessed portions 27 are all provided between the exposed portion 10 and the joint portion 30 of some of the contacts 1 among the plurality of contacts 1. For example, the first recessed portion 271 includes an exposed portion 10 of the remaining contacts 1 excluding the four pairs of contacts 1 (including the power supply terminal 4) located on the rightmost side of the plurality of contacts 1, and a first protruding portion 261. It is provided between and.

(2) Effect In the connector 106 of the present embodiment, similarly to the connector 100 of the first embodiment, when the mounting bracket 3 is soldered to the substrate 5, the flux 61 contained in the solder 6 flows to the contact 1. Can be reduced. In particular, in the present embodiment, even if the flux 61 invades the portion between the first protrusion 261 and the substrate 5, the flux 61 is between the first recess 271 adjacent to the first protrusion 261 and the substrate 5. The flux 61 is difficult to spread depending on the portion. Further, even if the flux 61 penetrates into the portion between the second protruding portion 262 and the substrate 5, the flux is formed by the portion between the second recessed portion 272 and the substrate 5 adjacent to the second protruding portion 262. 61 is hard to spread. That is, in the present embodiment, since the plurality of protruding portions 26 and the plurality of recessed portions 27 are provided, even if the flux 61 penetrates into the region where some of the contacts 1 are arranged, the remaining contacts 1 are arranged. It is possible to reduce the flow of the flux 61 to the region where the flux 61 is formed.

(3) Modified Example Hereinafter, the configuration of the connector 107 of the modified example of the present embodiment will be described with reference to FIG. However, since the basic configuration of the connector 107 of the present modification is common to the connector 106 of the present embodiment, the description of the common points will be omitted. Further, the connector 107 of this modification can be used in the connecting device 300 instead of the connector 100 of the first embodiment.

The connector 107 of this modification has a plurality of (here, eight) protruding portions 26 and a plurality of (here, seven) recessed portions 27 in addition to the protruding portion 26 composed of the connecting portion 38. Have. Then, in this modification, the plurality of protruding portions 26 are arranged at intervals so as to skip the contacts 1 one by one in the arrangement direction (left-right direction) of the plurality of contacts 1. Similarly, in the present modification, the plurality of recesses 27 are arranged at intervals so as to skip the contacts 1 one by one in the arrangement direction of the plurality of contacts 1. Here, the plurality of projecting portions 26 are the first projecting portions 261 to the eighth projecting portions 268 in order from one end (right end) side in the longitudinal direction (left-right direction) of the housing 2. Further, here, the plurality of recessed portions 27 are designated as first recessed portions 271 to 7th recessed portions 277 in order from one end side in the longitudinal direction of the housing 2, respectively.

In the connector 107 of the present modification, the distance between the plurality of protrusions 26 and the distance between the plurality of recesses 27 are narrower than those of the connector 106 of the present embodiment, so that the flux 61 flows to the contact 1. Can be further reduced. For example, in the connector 106 of the present embodiment, if the flux 61 penetrates into the portion between the first protrusion 261 and the substrate 5, the three pairs of contacts 1 (including the power supply terminal 4) on the far right side of the housing 2 are included. ), There is a possibility that the flux 61 can be kept attached. On the other hand, in the connector 107 of the present modification, in the above case, if the flux 61 stays in the portion between the first recess 271 adjacent to the first protrusion 261 and the substrate 5, the flux 61 may adhere. The number of contacts 1 can be reduced. That is, in the connector 107 of this modification, when the flux 61 is fastened as described above, the flux 61 may adhere only to the pair of contacts 1 (including the power supply terminal 4) on the rightmost side of the housing 2. is there.

As described above, the connector (100 to 107) of the first aspect includes a plurality of contacts 1, a housing 2, and a mounting bracket 3. The housing 2 holds a plurality of contacts 1. The mounting bracket 3 is attached to the housing 2. The mounting bracket 3 has a joint portion 30 that is exposed from the back surface 20 of the housing 2 facing the substrate 5 and is joined to the substrate 5. Each of the plurality of contacts 1 has an exposed portion 10 exposed from the back surface 20 of the housing 2. The housing 2 has a protruding portion 26 and a recessed portion 27. The protruding portion 26 is provided between the exposed portion 10 and the joint portion 30 of at least a part of the contact 1 among the plurality of contacts 1, and protrudes from the back surface 20. The recessed portion 27 is provided between the exposed portion 10 and the protruding portion 26 of at least a part of the contact 1 among the plurality of contacts 1, and is recessed with respect to the facing surface 260 of the protruding portion 26 facing the substrate 5. There is.

According to this configuration, when the mounting bracket 3 is soldered to the substrate 5, the flux 61 contained in the solder 6 can be reduced from flowing to the contact 1.

Further, in the connector (100-104, 107) of the second aspect, in the first aspect, the protruding portion 26 is provided between all the exposed portions 10 of the plurality of contacts 1 and the joint portion 30. .. The recessed portion 27 is provided between all the exposed portions 10 and the protruding portions 26 of the plurality of contacts 1.

According to this configuration, since the protruding portion 26 and the recessed portion 27 are arranged outside the region where all the contacts 1 are arranged, the effect of reducing the inflow of the flux 61 to all the contacts 1 can be expected.

Further, in the connector (105, 106) of the third aspect, in the first aspect, the protruding portion 26 is provided between the exposed portion 10 and the joint portion 30 of some of the contacts 1 among the plurality of contacts 1. Has been done. The recessed portion 27 is provided between the exposed portion 10 and the protruding portion 26 of some of the contacts 1 among the plurality of contacts 1.

According to this configuration, since the protruding portion 26 and the recessed portion 27 are arranged outside the region where some of the contacts 1 are arranged among the plurality of contacts 1, the flux 61 can flow into some of the contacts 1. The effect of reduction can be expected.

Further, in the connectors (100 to 107) of the fourth aspect, in the first or second aspect, the housing 2 further has a fitting portion 24 into which the other connector 200 is fitted. The protruding portion 26 is provided at a position corresponding to the fitting portion 24 on the back surface 20.

According to this configuration, the protruding portion 26 can reinforce the portion of the back surface 20 of the housing 2 that the other connector 200 contacts. Therefore, in this configuration, when the other connector 200 is fitted to the connector (100 to 107), the portion of the back surface 20 of the housing 2 that the other connector 200 comes into contact with is reduced from being pushed by the other connector 200 and being depressed. can do.

Further, in the connectors (100 to 107) of the fifth aspect, in any one of the first to fourth aspects, the dimension protruding from the back surface 20 of the joint portion 30 is equal to or larger than the dimension protruding from the back surface 20 of the protruding portion 26. Is.

According to this configuration, for example, if the portion between the substrate 5 and the protrusion 26 is widened, the flux 61 can be made difficult to spread due to the portion between the substrate 5 and the protrusion 26.

Further, in the connector (100 to 107) of the sixth aspect, in any one of the first to fifth aspects, the protruding portion 26 may be formed of the same material as the housing 2.

According to this configuration, a part of the housing 2 can be used as the protrusion 26. Therefore, in this configuration, for example, the protruding portion 26 can be provided only by molding the housing 2 using a mold, so that the manufacturing process of the connector (100 to 107) can be simplified. ..

Further, in the connector (100 to 107) of the seventh aspect, in any one of the first to fifth aspects, the protruding portion 26 may be formed of the same material as the mounting bracket 3.

According to this configuration, a part of the mounting bracket 3 can be used as the protrusion 26. Therefore, in this configuration, for example, the protruding portion 26 can be provided only by insert-molding the housing 2 with the mounting bracket 3 as an insert product, so that the manufacturing process of the connector (100 to 107) can be simplified. be able to.

Further, in the connector (100 to 107) of the eighth aspect, in any one of the first to seventh aspects, the housing 2 further has a groove 28. The groove 28 is provided between the joint 30 and the protrusion 26, and is recessed with respect to the facing surface 260 of the protrusion 26.

According to this configuration, since the portion between the substrate 5 and the groove 28 is wider than the portion between the substrate 5 and the protrusion 26, the capillary phenomenon occurs in the portion between the substrate 5 and the groove 28. Etc. are unlikely to occur. Therefore, in this configuration, it is possible to further reduce the flow of the flux 61 to the contact 1 as compared with the case where the groove 28 is not provided between the joint portion 30 and the protrusion portion 26.

Further, in the connector (104) of the ninth aspect, the protruding portions 26 are a pair in any one of the first to eighth aspects. The housing 2 further has a recess 29. The recess 29 is provided between the pair of protrusions 26 and is recessed with respect to the facing surface 260 of the protrusions 26.

According to this configuration, since the portion between the substrate 5 and the recess 29 is wider than the portion between the substrate 5 and the recess 27, the flux 61 is located between the substrate 5 and the recess 29. Is more difficult to spread.

Further, in the connector (105 to 107) of the tenth aspect, in any one of the first to ninth aspects, the protrusion 26 and the recess 27 are each plural. The plurality of protrusions 26 and the plurality of recesses 27 are alternately arranged along the arrangement direction of the plurality of contacts 1.

According to this configuration, even if the flux 61 penetrates into the region where some of the contacts 1 are arranged, it is possible to reduce the flow of the flux 61 to the region where the remaining contacts 1 are arranged.

Further, the connecting device 300 of the eleventh aspect includes the connector (100 to 107) of any one of the first to tenth aspects and the other connector 200. The other connector 200 has a plurality of other connector-side contacts 1A that are electrically connected to the plurality of contacts 1.

According to this configuration, it is possible to realize a connecting device 300 capable of reducing the flow of the flux 61 contained in the solder 6 to the contact 1 when the mounting bracket 3 is joined to the substrate 5 by soldering.

The connectors 100 to 107 and the connecting device 300 according to the first and second embodiments have been described above. However, the embodiment described above is only one of various embodiments of the present invention. The above-described embodiment can be changed in various ways depending on the design and the like as long as the object of the present invention can be achieved.

1 Contact 10 Exposed part 2 Housing 20 Back side 24 Fitting part 26 Protruding part 27 Recessed part 28 Groove part 29 Recessed part 3 Mounting bracket 30 Joint part 100 to 107 Connector 200 Other connector 300 Connecting device

Claims (10)

With multiple contacts
A housing in which the plurality of contacts are arranged side by side in one direction ,
A mounting bracket that can be attached to one end of the housing in one direction is provided.
The mounting bracket has a joint portion that is exposed from the back surface of the housing facing the substrate and is joined to the substrate.
Each of the plurality of contacts has an exposed portion exposed from the back surface of the housing.
The housing is
A protruding portion that is provided between the exposed portion and the joint portion of the contact on the most one end side in the one direction among the plurality of contacts and projects from the back surface.
A virtual boundary that intersects in the one direction when the protruding portion protrudes from the protruding direction, that is, the first boundary passing through the exposed portion on the most one end side and the one direction of the plurality of contacts. With another projecting portion provided between the second boundary passing through the exposed portion on the farthest end side and projecting from the back surface,
The substrate of the other projecting portion and the facing surface of the projecting portion facing the substrate, which is provided on the back surface between the exposed portion and the projecting portion of at least a part of the plurality of contacts. a recess portion which is recessed with respect to each of the opposed surface opposed to,
Have ,
Both the protrusion and the other protrusion are made of the same material as the housing.
A connector characterized in that the recess is provided between the protrusion and the other protrusion, and the position of the joint is fixed relative to the exposed back surface . Before SL recess, the connector according to claim 1, characterized in that provided between the most the exposed portion of the one end side to the projection. Before SL recess, the connector according to claim 1, characterized in that provided between the exposed part of the portion of the contact the protruding portion of the plurality of contacts. The housing further has a fitting portion into which another connector is fitted.
The connector according to claim 1 or 2, wherein the protruding portion is provided at a position corresponding to the fitting portion on the back surface. The connector according to any one of claims 1 to 4, wherein the dimension of the joint portion protruding from the back surface is equal to or larger than the dimension of the protruding portion protruding from the back surface. The other protrusion is
A first portion provided at the first boundary and protruding from the back surface,
Is connected with the first portion so as to protrude from the rear connector of claim 1 Symbol mounting and having a second portion projecting from the rear is provided on the second boundary. Any of claims 1 to 6, wherein the housing is provided between the joint portion and the protruding portion, and further has a groove portion recessed with respect to the facing surface of the protruding portion. Or the connector described in item 1. It has two protrusions,
Any of claims 1 to 7, wherein the housing is provided between the two protrusions and further has a recess recessed with respect to the facing surface of the two protrusions. The connector according to item 1. It has two of the other protrusions,
The housing is provided between the two other protrusions and has another recess that is recessed with respect to the facing surface of the two other protrusions facing the substrate. Item 2. The connector according to any one of Items 1 to 8. The connector according to any one of claims 1 to 9,
A connecting device including a plurality of other connectors having a plurality of other connector-side contacts electrically connected to the plurality of contacts.