TW202115965A - Circuit board connecting device - Google Patents

Abstract

The invention relates to a circuit board connecting device, which is provided with an insulating housing (15), a plurality of connecting points (16), and an elastic housing member (17) elastically held in an engaged state relative to a mating side connecting device. The elastic housing member is formed to have a strip-shaped part (18) provided with a first fixing part (21) fixedly attached to a circuit board (13) and configured to extend around the insulating housing, wherein the inner surface part of the strip-shaped part (18) is enabled to be elastically abutted upon the outer surface part of the mating side connecting device; a bending protrusion part (19) bendably extending from the end of the strip-shaped part (18); and an extension part (20) further bendably extending from the end of the bending protrusion part (19) to reach a position opposite to the strip-shaped part, and having a second fixing part (22) fixedly attached to the circuit board. A spring part is formed by the strip-shaped part, the bending protrusion part and the extension part from the first fixing part to the second fixing part.

Description

Substrate connector device

The invention described in the scope of the patent application in this case relates to a board connector device in a state where the connection terminal portions respectively provided on two circuit boards overlapping each other close to each other are electrically connected to each other. At this time, it is mounted on one of the two circuit boards, and is connected to the mating connector device mounted on the other of the two circuit boards.

Even in small electronic devices such as mobile phones or portable devices, there are a large number of various electronic components built in, but most of these electronic components are mounted on a plurality of circuit boards to perform their respective functions. A plurality of circuit boards mounted with various electronic components are set as rigid printed circuit boards or flexible printed circuit boards (FPC). For example, if you focus on two of them, they are housed in small electronic devices. In such a limited space, in order to reduce the occupied volume as much as possible, it is necessary to adopt an arrangement in which one circuit board and the other circuit board are closely overlapped to each other to connect the two. Hereinafter, the connection state in which one of the two circuit boards closely overlaps with the other is referred to as an opposite close overlap connection.

Generally, the interconnection of a plurality of circuit boards that are respectively set as a rigid printed circuit board or a flexible printed circuit board is usually performed by mounting a connector device on each circuit board and connecting these connector devices to each other. When the two circuit boards are connected to each other in close proximity to each other, the connector device mounted on each circuit board is also used. Previously, there have been proposed several types of connector devices mounted on a circuit board in order to make two circuit boards close to overlap and connect to each other (for example, refer to Patent Document 1).

The connector device (multipole connector 10) shown in Patent Document 1 is mounted on the first circuit board and is configured to include: an insulating case (insulating member (16)); a plurality of contacts (internal terminals (14a-14c) )), which are arranged in the insulating case and are respectively composed of conductors; and the elastic case member (external terminal (12)), which is formed by bending a metal plate and partially surrounds the insulating case Fixed to the insulating shell. Furthermore, the elastic shell member is configured to include: an outer frame portion (20) having a frame portion (21) and guide portions (22a-22d), and the frame portion (21) is formed in a strip shape and is arranged on the insulating housing Around, the guiding parts (22a-22d) are arranged at the corners of the frame part (21); the bending parts (24a, 24b) are arranged on the frame part (21); and the connecting parts (26a～26c) . In addition, the guide portions (22a-22d) are respectively formed with convex portions (P1 to P4) protruding to the inside of the frame portion (21).

When the connector device is mounted on the first circuit board, it will be provided at the bent portions (24a, 24b) and the connecting portion (26a) that constitute the frame portion (21) of the outer frame portion (20) of the elastic shell member ～26c) Connect to the pad electrode provided on the component mounting surface of the circuit board, thereby mounting the connector device on the first circuit board. In the connector device mounted on the first circuit board, a plurality of contacts are connected to the electrode portions provided on the component mounting surface of the first circuit board.

In this way, the connector device (multipole connector (10)) mounted on the first circuit board is in a state of mating connection with the counterpart connector device (counter-side connector (50)) mounted on the second circuit board. The object-side connector device is configured to include: an object-side insulating housing (insulating member (66)); a plurality of object-side contacts (internal terminals (64a to 64c)), which are arranged in the object-side insulating housing, and each Consists of a conductor; and an object-side elastic shell member (external terminal (52)), which is formed by bending a metal plate, and is fixed to the object-side insulating case in a state surrounding the object-side insulating case. Furthermore, the object side elastic shell member is configured to include: a bottom surface (54) fixed to the component mounting surface of the second circuit board; and an inner frame portion (56) formed in a strip shape to surround the object side insulating case The state is configured and connected with the connector device (multi-pole connector (10)). In addition, recesses (Q1 to Q4) are provided at the corners of the inner frame portion (56). Furthermore, when the counterpart connector device is mounted on the second circuit board in such a manner that the bottom surface (54) of the counterpart elastic shell member is fixed to the component mounting surface of the second circuit board, a plurality of counterpart side connectors The dots are connected to the electrode portions provided on the component mounting surface of the second circuit board.

When the connector device (multipole connector (10)) is fitted and connected with the counterpart connector device, the outer frame portion (20) of the elastic shell member in the connector device (multipole connector (10)) is formed ) Of the frame part (21) and the inner frame part (56) of the mating side elastic shell member constituting the mating connector device, so that the inner surface part of the frame part (21) is in contact with the outer surface part of the inner frame part (56) The state is elastically fitted. With the elastic engagement of the frame portion (21) of the outer frame portion (20) with the inner frame portion (56), the guide portion (22a-22d) of the outer frame portion (20) is formed to the frame The convex parts (P1～P4) protruding from the inner side of the part (21) respectively engage with the concave parts (Q1～Q4) provided in the inner frame part (56), whereby the outer frame part (20) is supported by the frame part (21). The locking with respect to the inner frame portion (56) is expected to maintain the state where the connector device (multipole connector (10)) and the counterpart connector device are fitted and connected. In addition, at this time, the plurality of contacts included in the connector device (multipole connector (10)) are respectively connected in contact with the plurality of counterpart side contacts included in the counterpart connector device. Thereby, the first circuit board on which the connector device (multipole connector (10)) is mounted and the second circuit board on which the counterpart connector device is mounted are interposed between the connector device (multipole connector (10)) ) And the counterpart-side connector device approaching overlapping connection. [Prior Technical Literature] [Patent Literature] [Patent Document 1] Japanese Special Publication No. WO2016/178356

[The problem to be solved by the invention]

With regard to the previously proposed connector device mounted on a circuit board in order to make two circuit boards close to overlap and join each other as described above, the following problems have been found.

Even in the connector device (multipole connector (10)) shown in Patent Document 1, miniaturization including low height is generally required. The dimension in the direction orthogonal to the component mounting surface of the first circuit board of the device (10)) is relatively small. Moreover, with the lower height of the connector device (multipole connector (10)), the frame part (20) of the elastic shell member in the connector device (multipole connector (10)) is reduced. 21) The dimension in the direction orthogonal to the component mounting surface of the first circuit board (hereinafter referred to as the vertical dimension) is reduced.

In this case, when the connector device (multipole connector (10)) shown in Patent Document 1 is in a state of mating connection with the counterpart connector device, the connector device (multipole connector (10)) ) In the outer frame portion (20) of the elastic shell member (21) and the inner frame portion (56) of the counterpart side elastic shell member in the counterpart connector device so that the inner surface of the skeleton portion (21) The outer surface of the inner frame part (56) is in contact with the outer surface part of the inner frame part (56). At this time, the guide part (22a-22d) of the outer frame part (20) is formed by the guide part (22a-22d) to the frame part (21). The convex portions (P1 to P4) protruding inside are engaged with the concave portions (Q1 to Q4) provided in the inner frame portion (56), thereby maintaining the mating connection with the counterpart connector device, but the convex portion (P1) ~P4) When meshing with the recesses (Q1 to Q4), the protrusions (P1 to P4) go over the edges of the recesses (Q1 to Q4) and engage with the recesses (Q1 to Q4). Therefore, when the frame portion (21) of the outer frame portion (20) is elastically fitted with the inner frame portion (56) constituting the target side elastic shell member, it temporarily passes over the inner frame portion (P1 to P4) due to the convex portions (P1 to P4). 56) When the edge of the recess (Q1 ~ Q4) is deformed by the contact and compression from the edge, then in order to make the convex part (P1 ~ P4) engage with the recess (Q1 ~ Q4), it is necessary to use itself The elastic response force is restored. As a result, the engagement between the convex parts (P1 to P4) and the concave parts (Q1 to Q4) will be adversely affected by the lowering of the frame part (21) of the outer frame part (20) and the change over time. The outer frame portion (20) has guide portions (22a-22d) forming convex portions (P1 to P4).

In more detail, the frame portion (20) with the frame portion (21) and the guide portion (22a-22d) forming the convex portions (P1 to P4) constitutes the connector device (multipole connector (10)) The elastic shell member is formed by bending a metal plate, so the frame portion (21) of the outer frame portion (20) is also formed by bending the metal plate. Therefore, when the height of the connector device (multipole connector (10)) is reduced and the vertical width is reduced, it is difficult for the frame part (21) of the outer frame part (20) to have sufficient The elasticity, in turn, produces a decrease in the elastic recovery force that changes with time, the so-called "aging", which is accompanied by the convex portion (22a-22d) formed by the guide portion (22a-22d) of the outer frame portion (20). P1 to P4) and the recesses (Q1 to Q4) provided in the inner frame portion (56) of the elastic shell member on the object side may cause problems in the meshing.

According to this, it is difficult for the frame part (21) constituting the outer frame part (20) of the elastic shell member to have sufficient elasticity. Therefore, when the “aging” that reduces the elastic recovery force occurs as it changes over the years, the The convex portions (P1 to P4) formed by the guide portions (22a-22d) protrude inward to form a gap between the skeleton portion (21) of the outer frame portion (20) and the inner frame portion (56) constituting the target side elastic shell member The elastic fitting is temporarily deformed when the convex part (P1～P4) passes over the edge part of the concave part (Q1～Q4) provided in the inner frame part (56) when the edge part is pressed against the edge part. When the convex part (P1～P4) is engaged with the concave part (Q1～Q4) and wants to recover by its own elastic recovery force, the original elastic recovery force is reduced due to insufficient elasticity, and a sufficient recovery state cannot be obtained, resulting in The convex parts (P1 to P4) cannot be properly engaged with the concave parts (Q1 to Q4) while the elastic pressing force is applied to the convex parts (P1 to P4). As a result, the frame portion (21) constituting the outer frame portion (20) of the elastic shell member cannot be properly locked with respect to the inner frame portion (56) constituting the target side elastic shell member, and cannot be properly maintained. The state where the connector device (multipole connector (10)) and the counterpart connector device are mated and connected.

In view of this aspect, the invention described in the scope of the patent application of this case provides a board connector device, which is installed on a circuit board for use in order to overlap and connect two circuit boards facing each other, and is provided with an elastic shell member. When the substrate connector device is in a state of mating connection with the counterpart connector device, the shell member is elastically held in the engaged state with respect to the counterpart connector device, even when the overall height is reduced, It is also possible to make the elastic shell member have sufficient elasticity, and the elastic shell member is not susceptible to adverse effects caused by changes over time, and the state of fitting and connection with the counterpart connector device can be appropriately maintained. [Technical means to solve the problem]

The substrate connector device of the invention described in any one of claims 1 to 8 (hereinafter referred to as the invention of the present application) in the scope of the patent application of the present application is configured to include an insulating housing formed as a plate-shaped body having A substrate butting surface that is close to or abuts against the component mounting surface of the first circuit board; a plurality of contacts are arranged in an insulative housing, each having a contact portion and a connecting portion, and the contact portion is fixed to the second circuit board The contact point of the counterpart connector device is connected in contact, and the connection part is connected to the component mounting surface of the first circuit board; and the elastic shell member is mounted on the insulating housing and is elastically held and engaged with the counterpart connector device State; The elastic shell member is formed to have: a belt-shaped portion, which is provided with a first fixing portion fixed to the component mounting surface of the first circuit board, and extends along the periphery of the board butt surface of the insulating housing to make the inner surface The part elastically abuts on the outer surface of the mating connector device; the curved protrusion, which extends from the end of the belt-shaped part in a curved manner and protrudes away from the insulating housing; and the extension, which extends from the curved protrusion The end portion is further bent and extended to become a position opposite to the belt-shaped portion, and is provided with a second fixing portion fixed to the component mounting surface of the first circuit board; and from the first fixing portion to the second fixing portion The band portion, the curved protrusion portion and the extension portion form a spring portion as a whole.

In the substrate connector device of the present invention as described above, the elastic shell member that is mounted on the insulating housing and elastically maintains the engaged state with respect to the counterpart connector device is formed to have a belt-shaped portion provided with the first The fixed portion extends along the periphery of the butting surface of the substrate of the insulating housing, so that the inner surface portion elastically abuts against the outer surface portion of the counterpart connector device; the curved protrusion portion extends curvedly from the end of the belt-shaped portion , And protrude in the direction away from the insulating housing; and the extension part, which extends from the end of the curved protrusion part to be further bent and becomes a position opposite to the belt-shaped part, and is provided with a second fixing part. Furthermore, the first fixing portion and the second fixing portion of the elastic shell member are fixed to the first circuit board by, for example, welding, whereby the board connector device makes the board abutting surface of the insulating housing approach or abut against the first circuit board. 1 The state of the component mounting surface of the circuit board is fixed to the first circuit board.

The board connector device fixed to the first circuit board is in a state of mating connection with the counterpart side connector device fixed to the second circuit board, and each has a plurality of connections of connecting portions connected to the component mounting surface of the first circuit board The respective contact portions of the points are connected in contact with the corresponding contact portions of the plurality of contacts of the mating connector device connected to the second circuit board. Thereby, the first circuit board to which the board connector device is fixed and the second circuit board to which the counterpart connector device is fixed are closely overlapped and connected with each other interposing the board connector device and the counterpart connector device.

In this way, when the substrate connector device of the present invention is in a state of mating and connection with the counterpart connector device, the belt-shaped portion of the elastic shell member extending along the periphery of the substrate abutting surface of the insulating housing makes its inner surface The part elastically abuts on the outer surface of the mating connector device, for example, the outer surface of the holding metal member that fixes it to the second circuit board in the mating connector device. The card stops the effect. Thereby, it is possible to appropriately and stably maintain the mating connection state of the board connector device of the present invention and the counterpart connector device. [Effects of Invention]

In the substrate connector device of the present invention, when it is in a state of mating connection with the counterpart connector device, the elastic shell member extends along the periphery of the substrate abutting surface of the insulating housing to make its inner surface The part elastically abuts on the outer surface of the mating connector device to play a locking function with respect to the mating connector device. However, at this time, since the elastic shell member is between the first fixing part and the second fixing part The band part, the curved protrusion part and the extension part integrally form a spring part, so the inner surface part of the band part elastically abuts against the outer surface part of the counterpart connector device is obtained based on the following conditions: in the elastic shell member The elastic pressing force of the integrally formed spring part from the first fixing part to the second fixing part of the belt-shaped part, the curved protrusion part and the extension part acts on the belt-shaped part, and the inner surface of the belt-shaped part is pressed against The outer surface of the counterpart connector device. Accordingly, by providing the curved protrusions and extensions, the elastic compression of the strips from the first fixed part to the second fixed part, the integrated spring part, the curved protrusions and the extensions, is applied to the strip The force is enhanced by the bending protrusion and the extension. The bending protrusion extends from the end of the belt-shaped portion and protrudes away from the insulating housing portion. The extension is further bent from the end of the bending protrusion. The ground extends to become a position opposite to the belt-shaped portion.

By having the elastic shell member constructed as described above, the substrate connector device of the present invention achieves a lower overall height, and along with this, the elastic shell member including the strip-shaped portion is in contact with the first circuit board. When the dimension of the direction orthogonal to the mounting surface of the part is relatively small, the elastic shell member can also have sufficient elasticity, and the elastic shell member is not susceptible to adverse effects caused by changes over time. As a result, according to the substrate connector device of the present invention, even when the overall height of the substrate connector device is reduced, when it is in a state of being fitted and connected to the counterpart connector device, the elastic shell member extends from the first fixing portion to the The elastic squeezing force of the spring part composed of the band-shaped part, the curved protrusion part and the extension part of the second fixed part is also applied to the band-shaped part, and the inner surface of the band-shaped part can be properly pressed against the object The state of the outer surface portion of the side connector device can appropriately maintain the state of mating and connecting the board connector device of the present invention and the counterpart side connector device.

The method for implementing the invention of the present invention is described based on Embodiment 1 and Embodiment 2 of the substrate connector device of the present invention described below. [Example 1]

1 is a plug connector 11 that constitutes the first example of the substrate connector device of the present invention, the socket connector 12 that constitutes the counterpart connector device to which the plug connector 11 is fitted and connected, and the fixed plug connector 11 The circuit board 13 (it is the first circuit board and is indicated by the dashed line (single-dot chain line)) and the circuit board 14 (second circuit board) to which the socket connector 12 is fixed are shown together. The plug connector 11 is fixed to the component mounting surface (hereinafter referred to as the lower surface) of the circuit board 13 facing downward in FIG. 1, and the receptacle connector 12 is fixed to the circuit board 14 facing upward in FIG. The part mounting surface (hereinafter referred to as the upper surface).

As shown in the bottom view of the plug connector 11, which is also shown in FIG. 2, the plug connector 11 constituting the first example of the substrate connector device of the present invention includes an insulating housing 15 formed of an insulating material such as synthetic resin. 15 has a substrate abutting surface 15a that is close to or abuts against the lower surface of the circuit substrate 13. In addition, a plurality of contacts 16 are arranged in a row on the insulating housing 15, and the plurality of contacts 16 are respectively formed as strip-shaped members formed of a conductive sheet material having elasticity. Each of the plurality of contacts 16 has a connection portion 16a and a contact portion 16b. The connection portion 16a is connected to a terminal portion provided on the lower surface of the circuit board 13, and the contact portion 16b is connected to a socket connector 12 fixed on the upper surface of the circuit board 14. The contact is connected by contact. The plurality of connecting portions 16a each of the plurality of contacts 16 are arranged on the substrate abutting surface 15a of the insulating housing 15, and protrude from a side edge of the substrate abutting surface 15a to the outside of the insulating housing 15. Each of the connecting portions 16a is connected to a terminal portion provided on the lower surface of the circuit board 13 by soldering, for example. In addition, the plurality of connecting portions 16a of the plurality of connectors 16 are located on the bottom surface 15b of the insulating housing 15 opposite to the substrate abutting surface portion 15a, and face the outside of the insulating housing 15.

Furthermore, an elastic shell member 17 is mounted on the insulating housing 15. The elastic shell member 17 is formed by bending a conductive plate material with elasticity, and is elastic when the plug connector 11 and the socket connector 12 are fitted and connected. Keep in the engaged state of the socket connector 12 (elastically maintain the engaged state). As shown separately in FIG. 3, the elastic shell member 17 is formed to have: a belt-shaped portion 18 extending along the periphery of the substrate abutting surface 15a of the insulating housing 15; and a curved protrusion 19 from the belt-shaped portion 18 The end portion is bent and extended, and protrudes away from the insulating housing 15; and the extension portion 20, which is further bent and extended from the end of the curved protrusion portion 19, becomes a position opposite to the belt-shaped portion 18. Furthermore, the strip portion 18 is provided with a first fixing portion 21 fixed to the lower surface of the circuit board 13, and the extension portion 20 is provided with a second fixing portion 22 fixed to the lower surface of the circuit board 13, which is elastic In the case member 17, the band portion 18 from the first fixing portion 21 to the second fixing portion 22, the curved protrusion portion 19, and the extension portion 20 form a spring portion as a whole. According to this, when the plug connector 11 and the receptacle connector 12 are fitted and connected, the inner surface portion of the belt-shaped portion 18 elastically abuts against the outer surface portion of the receptacle connector 12.

To describe the elastic shell member 17 in further detail, the second fixing portion 22 provided on the extension portion 20 is between the strip portion 18 formed by the curved protrusion 19 and the extension portion 20 facing the strip portion 18 In the space, it protrudes in a state close to the band-shaped portion 18 from the extension portion 20. By using the space between the strip portion 18 and the extension portion 20 opposite to the strip portion 18 in this way, the second fixing portion 22 provided on the extension portion 20 approaches the strip portion 18 from the extension portion 20 The state is prominent, and the projected area of the elastic shell member 17 on the lower surface of the circuit board 13 is reduced. According to this, the first fixing portion 21 provided on the band portion 18 and the second fixing portion 22 provided on the extension portion 20 are arranged at positions facing each other with the insulating case 15 interposed therebetween. Furthermore, the elastic shell member 17 forms a single member, and the single member is formed by partially enclosing the substrate abutting surface 15a of the insulating case 15 in a state where the two ends of the band-shaped portion 18 are opposed to each other at a specified interval. , The bent protrusion 19 is bent and extends from each of the opposite ends. According to this, in the area between the two ends of the band-shaped portion 18 facing each other, a plurality of connecting portions 16a of each of the plurality of contacts 16 arranged in the insulating case 15 are directed from the insulating case 15 to it. Externally prominent.

Furthermore, in the example shown in FIGS. 1 to 3, the elastic shell member 17 forms a single member, but it is not limited to this example. The single member is tied to the belt-shaped portion 18 so that both ends thereof are separated by a specific interval. The opposite state partially surrounds the substrate abutting surface 15a of the insulating case 15. For example, the elastic shell member 17 may be formed as a pair of members mounted on the insulating housing 15, and the strip portion 18 of each of the pair of elastic shell members 17 may be formed via the substrate abutting surface 15a of the insulating housing 15 Opposite to each other, the curved protrusions 19 of the pair of elastic shell members 17 are arranged at positions facing each other at a specified interval, and the extension portions 20 of the pair of elastic shell members 17 are arranged at a specified interval. And the positions facing each other. In the case where a pair of elastic shell members 17 are provided in this way, the plurality of contacts 16 of the insulating housing 15 are arranged in a line between the respective curved protrusions 19 of the pair of elastic shell members 17 The connecting portion 16a protrudes from the insulating housing 15 to the outside thereof, and each of the connecting portions 16a is connected to a terminal portion provided on the lower surface of the circuit board 13 by, for example, soldering.

As shown in FIG. 4 which is a plan view of the socket connector 12, the socket connector 12 constituting the mating connector device includes an insulating housing 25 formed of an insulating material such as synthetic resin and a pair of holding metal members 26, each holding the metal member 26 is mounted on the insulating housing 25 by insert molding, for example.

The insulative housing 25 is provided with a protruding portion 25a that enters into the plug connector 11 when the plug connector 11 and the receptacle connector 12 are mated and connected, and a plurality of protruding portions 25a are arranged in line in the insulative housing 25 The contact points 27 are each formed as a strip-shaped member formed of a conductive sheet material having elasticity. Each of the plurality of contacts 27 has a connecting portion 27a and a contact portion 27b. The connecting portion 27a is connected to a terminal portion provided on the upper surface of the circuit board 14, and the contact portion 27b is connected to a plug connector fixed on the lower surface of the circuit board 13. The contact point of 11 is contacted and connected. A plurality of connecting portions 27a each of the plurality of contacts 27 protrude from the insulating housing 25 to the outside thereof, and each connecting portion 27a is connected to a terminal portion provided on the upper surface of the circuit board 14 by soldering, for example. In addition, the plurality of contact portions 27b each of the plurality of contacts 27 are arranged along the inner wall surface and the ceiling surface of the protrusion 25a provided on the insulating case 25.

The pair of holding metal members 26 are arranged to face each other with the insulating case 25 interposed in the arrangement direction of the plurality of contacts 27 arranged in the insulating case 25. Furthermore, the pair of holding metal members 26 each have a main body 28 and a plurality of fixing portions 29. The main body 28 is formed as a band-shaped body extending along the insulating case 25, and the plurality of fixing portions 29 protrude from the main body 28 and are fixed. On the upper surface of the circuit board 14. When the plug connector 11 and the receptacle connector 12 are mated and connected, the outer surface portion of the main body portion 28 elastically abuts against the inner surface portion of the belt portion 18 in the elastic shell member 17 of the plug connector 11. In addition, each of the plurality of fixing portions 29 is fixed to the upper surface of the circuit board 14 by, for example, soldering, thereby fixing the socket connector 12 to the upper surface of the circuit board 14.

Accordingly, the lower surface of the circuit board 13 where the plug connector 11 is fixed is opposed to the upper surface of the circuit board 14 where the receptacle connector 12 is fixed, and when the circuit board 13 and the circuit board 14 are closely overlapped, the present invention is constituted The plug connector 11 of the first example of the circuit board connector device and the socket connector 12 constituting the mating connector device opposite to it are fitted and connected.

At this time, as shown in FIG. 5 (a perspective view of the circuit board 13 with a dotted line), FIG. 6 (a plan view with the circuit board 13 and the circuit board 14 omitted), and FIG. 7 (the circuit board 13 and the circuit board 14 are omitted) Side view) and as shown in Fig. 8 showing the cross section of line VIII-VIII in Fig. 7, the lower surface of the circuit board 13 with the plug connector 11 fixed to the upper surface of the circuit board 14 with the receptacle connector 12 fixed Close to the position and make the circuit board 13 and the circuit board 14 overlap each other, so the insulating housing 15 of the plug connector 11 receives the protrusion 25a of the insulating housing 25 of the socket connector 12 in its interior. The state is a state in which it is fitted with the insulating housing 25 of the socket connector 12. Thereby, the plug connector 11 with the circuit board 13 is in a state of being fitted and connected with the socket connector 12 with the circuit board 14.

At this time, as shown in FIG. 8, the respective contact portions 16b of the plurality of contacts 16 arranged in the insulating housing 15 of the plug connector 11 and the plurality of contacts arranged in the insulating housing 25 of the socket connector 12 The contact portions 27b of the respective contact portions 27b of 27 abut and are in contact with them, thereby obtaining a state in which the plurality of contacts 16 of the plug connector 11 and the plurality of contacts 27 of the receptacle connector 12 are in contact and connected, respectively. The contact portions 27b are configured as Along the inner wall surface and the zenith surface of the protrusion 25a. As a result, the connecting portions 16a each connected to the plurality of contacts 16 and the plurality of terminal portions provided on the circuit board 13 are respectively connected to each of the plurality of contacts 27 via the plurality of contacts 16 and the plurality of contacts 27 The connecting portion 27a is connected to a plurality of terminal portions provided on the circuit board 14 and electrically connects the circuit board 13 and the circuit board 14 to each other.

In addition, as shown in FIGS. 5 and 6, when the plug connector 11 is in a state of mating connection with the receptacle connector 12, the elastic shell member 17 of the plug connector 11 is along the substrate butting surface 15a of the insulating housing 15 The belt-shaped portion 18 extending therearound exerts a locking function with respect to the receptacle connector 12 so that its inner surface portion elastically abuts against the outer surface portion of the main body portion 28 of the holding metal member 26 of the receptacle connector 12. In this case, in the elastic shell member 17 of the plug connector 11, the band 18 from the first fixing portion 21 to the second fixing portion 22, the curved protrusion 19, and the extension 20 are integrally formed as a spring portion, so it has a band shape. The state in which the inner surface portion of the portion 18 and the outer surface portion of the main body portion 28 of the holding metal member 26 of the socket connector 12 elastically abut is obtained by the following method: The elastic squeezing force of the integrally formed spring portion of the band portion 18, the curved protrusion portion 19 and the extension portion 20 of the fixing portion 22 acts on the band portion 18, so that the inner surface of the band portion 18 is pressed against the socket connector The outer surface portion of the body portion 28 of the holding metal member 26 of 12. At this time, by providing the curved protrusion 19 and the extension 20, the integrated spring part from the first fixing part 21 to the second fixing part 22 of the band 18, the curved protrusion 19 and the extension 20 is applied to the belt The elastic pressing force of the shaped portion 18 is enhanced by the curved protrusion 19 and the extension 20. The curved protrusion 19 extends from the end of the belt-shaped portion 18 and protrudes away from the insulating housing 15. 20 further bends and extends from the end of the curved protrusion 19 to become a position facing the band 18.

Therefore, the plug connector 11 provided with the elastic shell member 17 constructed as described above achieves a reduction in the overall height, and is accompanied by the lower surface of the elastic shell member 17 including the band portion 18 and the circuit board 13 In the case where the size in the orthogonal direction is relatively small, the elastic shell member 17 can also be sufficiently elastic, and the elastic shell member 17 is not susceptible to adverse effects caused by changes over time. As a result, according to the plug connector 11, even when the overall height of the plug connector 11 is reduced, in the state of being fitted and connected to the socket connector 12, the elastic shell member 17 extends from the first fixing portion 21 to the second 2 The elastic pressing force of the spring part constituted by the band 18 of the fixed part 22, the curved protrusion 19 and the extension part 20 as a whole also acts on the band 18, and the inner surface of the band 18 is appropriately obtained. The state where the portion is pressed against the outer surface portion of the main body portion 28 of the holding metal member 26 of the receptacle connector 12 can appropriately maintain the state in which the plug connector 11 and the receptacle connector 12 are fitted and connected. [Example 2]

Fig. 9 shows the plug connector 31 constituting the second example of the substrate connector device of the present invention, the socket connector 12 constituting the mating connector device to which the plug connector 31 is fitted and connected, and the circuit to which the plug connector 31 is fixed The substrate 13 (represented by a dashed line (single-dot chain line)) and the circuit substrate 14 to which the socket connector 12 is fixed are shown together. The receptacle connector 12 is the same as the receptacle connector 12 described in the above description of the first embodiment, and is represented by the same symbols as the receptacle connector 12 described above. In addition, each of the circuit board 13 and the circuit board 14 is also the same as the circuit board 13 and the circuit board 14 described in the above description of the first embodiment. Moreover, the plug connector 31 is fixed on the circuit board 13 and the component mounting surface facing downward in FIG. 9 is the lower surface, and the receptacle connector 12 is fixed on the circuit board 14 and the component mounting facing upward in FIG. 9 The surface is the upper surface.

The plug connector 31 constituting the second example of the board connector device of the present invention is provided with an insulating housing 15 formed of an insulating material such as synthetic resin, and the insulating housing 15 and the aforementioned insulating housing of the plug connector 11 15 has the same configuration, and the same plurality of contacts 16 as the plurality of contacts 16 arranged in the above-mentioned plug connector 11 are arranged in a row. Furthermore, an elastic shell member 32 is mounted on the insulating housing 15. The elastic shell member 32 is formed by bending a conductive plate material with elasticity. When the plug connector 31 and the receptacle connector 12 are fitted and connected, the elastic shell member 32 is opposite to The socket connector 12 is elastically maintained in a snapped state. As shown separately in FIG. 10, the elastic shell member 32 is formed to have: a belt-shaped portion 33 extending along the periphery of the substrate abutting surface 15a of the insulating housing 15; and a curved protrusion 34 that extends from the belt-shaped portion 33 The end portion is curved to extend and protrudes away from the insulating housing 15; and the extension portion 35 extends from the end of the curved protruding portion 34 to be further curved and extends to a position opposite to the belt-shaped portion 33. Furthermore, the strip portion 33 is provided with a first fixing portion 36 fixed to the lower surface of the circuit board 13, and the extension portion 35 is provided with a second fixing portion 37 fixed to the lower surface of the circuit board 13, which is elastic In the shell member 32, the band portion 33 from the first fixing portion 36 to the second fixing portion 37, the curved protrusion portion 34 and the extension portion 35 form a spring portion as a whole. According to this, when the plug connector 31 and the receptacle connector 12 are fitted and connected, the strip portion 33 has its inner surface elastically abutting against the outer surface of the receptacle connector 12.

Describing the elastic shell member 32 in further detail, the second fixing portion 37 provided on the extension portion 35 protrudes from the extension portion 35 toward the outside thereof, that is, away from the belt-shaped portion 33. By thus making the second fixing portion 37 provided on the extension portion 35 protrude from the extension portion 35 toward the outside thereof, the fixing of the second fixing portion 37 to the lower surface of the circuit board 13 by soldering, for example, becomes easier . According to this, the first fixing portion 36 provided on the belt-shaped portion 33 and the second fixing portion 37 provided on the extension portion 35 are arranged at positions facing each other with the insulating case 15 interposed therebetween. Furthermore, the elastic shell member 32 forms a single member, and the single member is formed by partially enclosing the substrate abutting surface 15a of the insulating housing 15 with the band-shaped portion 33 having its two ends facing each other with a specified interval therebetween. , The curved protrusion 34 is curvedly extended from each of the opposite ends. According to this, in the area between the two ends of the band-shaped portion 33 facing each other, the plurality of connecting portions 16a of the plurality of contacts 16 arranged in the insulating housing 15 are directed from the insulating housing 15 to the respective connecting portions 16a. Externally prominent.

Furthermore, in the example shown in FIGS. 9 and 10, the elastic shell member 32 forms a single member, but it is not limited to this example. The single member is tied to the belt-shaped portion 33 so that its two ends are separated by a specific interval. The opposite state partially surrounds the substrate abutting surface 15a of the insulating case 15. For example, the elastic shell member 32 may be formed as a pair of members mounted on the insulating housing 15, and the strip portion 33 of each of the pair of elastic shell members 32 may be formed with the substrate butting surface 15a of the insulating housing 15 interposed therebetween. Opposite to each other, the curved protrusions 34 of the pair of elastic shell members 32 are arranged at positions facing each other at a specified interval, and the extension portions 35 of the pair of elastic shell members 32 are arranged at a specified interval. And the positions facing each other. In the case where a pair of elastic shell members 32 are provided in this way, the positions between the curved protrusions 34 of the pair of elastic shell members 32 are arranged in line with the plurality of contacts 16 of the insulating housing 15 The connecting portion 16a protrudes from the insulating housing 15 to the outside thereof, and each of the connecting portions 16a is connected to a terminal portion provided on the lower surface of the circuit board 13 by welding, for example.

Accordingly, the lower surface of the circuit board 13 where the plug connector 31 is fixed is opposed to the upper surface of the circuit board 14 where the receptacle connector 12 is fixed, and when the circuit board 13 and the circuit board 14 closely overlap each other, the structure The plug connector 31 of the second example of the board connector device of the present invention and the receptacle connector 12 constituting the mating connector device opposed to the plug connector 31 are fitted and connected.

At this time, as shown in FIG. 11 (the perspective view of the circuit board 13 is shown by the dotted line) and FIG. 12 (the plan view with the circuit board 13 and the circuit board 14 omitted), the circuit board 13 to which the plug connector 31 is fixed The lower surface becomes a position close to the upper surface of the circuit board 14 to which the socket connector 12 is fixed, and the circuit board 13 and the circuit board 14 are closely overlapped with each other. Therefore, the insulating housing 15 of the plug connector 31 bears the inside of it. The state of receiving the protrusion 25a of the insulating housing 25 of the socket connector 12 obtains a state of fitting with the insulating housing 25 of the socket connector 12. Thereby, the plug connector 31 with the circuit board 13 is in a state of being fitted and connected to the socket connector 12 with the circuit board 14.

At this time, the respective contact portions 16b of the plurality of contacts 16 arranged in the insulating housing 15 of the plug connector 31 and the respective contact portions 27b of the plurality of contacts 27 arranged in the insulating housing 25 of the socket connector 12 Abutting and contacting connection, thereby obtaining a state in which the plurality of contacts 16 of the plug connector 31 and the plurality of contacts 27 of the socket connector 12 are in contact and connected, respectively. The contact portion 27b is arranged along the inner side of the protrusion 25a Wall surface and ceiling surface. As a result, the connecting portions 16a each connected to the plurality of contacts 16 and the plurality of terminal portions provided on the circuit board 13 are respectively connected to each of the plurality of contacts 27 via the plurality of contacts 16 and the plurality of contacts 27 The connecting portion 27a is connected to a plurality of terminal portions provided on the circuit board 14 and electrically connects the circuit board 13 and the circuit board 14 to each other.

In addition, as shown in FIGS. 11 and 12, when the plug connector 31 is in a state of mating connection with the receptacle connector 12, the elastic shell member 32 of the plug connector 31 is along the substrate butting surface 15a of the insulating housing 15 The belt-shaped portion 33 extending around the outer surface of the belt-shaped portion 33 elastically abuts against the outer surface portion of the main body portion 28 of the holding metal member 26 of the socket connector 12 to perform a locking function with respect to the socket connector 12. In this case, in the elastic shell member 32 of the plug connector 31, the band 33 from the first fixing portion 36 to the second fixing portion 37, the curved protrusion 34, and the extension 35 are integrally formed as a spring portion, so it has a band shape. The state in which the inner surface portion of the portion 33 and the outer surface portion of the main body portion 28 of the holding metal member 26 of the socket connector 12 elastically abut is obtained by the following method: in the elastic shell member 32 from the first fixing portion 36 to the second The elastic squeezing force of the integrally formed spring portion of the band portion 33, the curved protrusion portion 34 and the extension portion 35 of the fixing portion 37 acts on the band portion 33, so that the inner surface of the band portion 33 is pressed against the socket connector The outer surface portion of the main body portion 28 of the holding metal member 26 of 12. At this time, by providing the curved protruding portion 34 and the extending portion 35, the integral spring portion composed of the strip portion 33, the curved protruding portion 34 and the extending portion 35 from the first fixed portion 36 to the second fixed portion 37 is applied to the strip. The elastic squeezing force of the portion 33 is enhanced by the curved protrusion 34 and the extension 35. The curved protrusion 34 extends from the end of the band 33 and protrudes away from the insulating housing 15. 35 extends further from the end of the curved protrusion 34 to be opposite to the band 33.

Therefore, according to the plug connector 31 provided with the elastic shell member 32 configured as described above, the same effects as those obtained by the plug connector 11 described above can be obtained. [Industrial availability]

As described above, the substrate connector device of the present invention is mounted on a circuit substrate for use in order to overlap and connect two circuit substrates facing each other, and is provided with an elastic shell member that is connected to the substrate connector device. When the counterpart connector device is fitted and connected, it is elastically held in the engaged state with respect to the counterpart connector device. Even when the overall height is reduced, the elastic shell member can be sufficiently elastic. In addition, the elastic shell member is not susceptible to adverse effects caused by changes over time, can appropriately maintain the state of mating connection with the counterpart connector device, and can be widely used in various electronic devices and the like.

11: Plug connector (substrate connector device) 12: Socket connector (counter-side connector device) 13: Circuit board (1st circuit board) 14: Circuit board (second circuit board) 15: Insulating shell 15a: substrate butt face 15b: bottom face 16: contact 16a: Connection part 16b: Contact part 17: Elastic shell member 18: Band 19: curved protrusion 20: Extension 21: The first fixed part 22: The second fixed part 25: Insulating shell 25a: protrusion 26: Keep metal components 27: Contact 27a: Connection part 27b: Contact 28: Body part 29: Fixed part 31: Plug connector (substrate connector device) 32: Elastic shell member 33: Band 34: curved protrusion 35: Extension 36: The first fixed part 37: The second fixed part

Fig. 1 shows the plug connector constituting the first example of the board connector device of the present invention and the first circuit board (indicated by a broken line) to which the plug connector is fixed, and the plug is fitted and connected to the structure. A perspective view showing the receptacle connector of the mating connector device of the connector and the second circuit board to which the receptacle connector is fixed. Fig. 2 is a bottom view of the plug connector shown in Fig. 1; Fig. 3 is a bottom view separately showing the elastic shell member of the plug connector shown in Fig. 1. Fig. 4 is a top view of the socket connector shown in Fig. 1; FIG. 5 is a perspective view showing a state where the plug connector attached with the first circuit board (shown by the broken line) shown in FIG. 1 and the receptacle connector attached with the second circuit board shown in FIG. 1 are fitted and connected. Fig. 6 is a plan view showing a state in which the plug connector shown in Fig. 1 and the receptacle connector shown in Fig. 1 are fitted and connected. Fig. 7 is a side view showing a state where the plug connector shown in Fig. 1 and the receptacle connector shown in Fig. 1 are fitted and connected. Fig. 8 is a cross-sectional view taken along the line VIII-VIII in Fig. 7. 9 shows the plug connector constituting the second example of the board connector device of the present invention and the first circuit board (indicated by a dotted line) on which the plug connector is fixed, and the structure is embedded with the plug connector A perspective view showing the receptacle connector of the mating connector device to be connected together with the second circuit board to which the receptacle connector is fixed. Fig. 10 is a bottom view separately showing the elastic shell member of the plug connector shown in Fig. 9. FIG. 11 is a perspective view showing a state where the plug connector attached with the first circuit board (shown by the broken line) shown in FIG. 9 and the socket connector attached with the second circuit board shown in FIG. 9 are fitted and connected. Fig. 12 is a plan view showing a state after the plug connector shown in Fig. 9 and the receptacle connector shown in Fig. 9 are fitted and connected.

11: Plug connector (substrate connector device)

12: Socket connector (counter-side connector device)

13: Circuit board (1st circuit board)

14: Circuit board (second circuit board)

15: Insulating shell

15a: substrate butt face

16: contact

16a: Connection part

17: Elastic shell member

18: Band

19: curved protrusion

20: Extension

21: The first fixed part

22: The second fixed part

25: Insulating shell

25a: protrusion

26: Keep metal components

27: Contact

27b: Contact

28: Body part

29: Fixed part

Claims (8)

A substrate connector device, characterized in that it is configured to include: An insulating housing, which is formed as a plate-shaped body, and has a substrate butting surface that is close to or abuts against the component mounting surface of the first circuit substrate; A plurality of contacts, which are arranged in the above-mentioned insulating housing, respectively have a contact part and a connection part, the contact part is in contact with the contact point of the counterpart connector device fixed to the second circuit board, and the connection part is connected to the aforementioned Connection of the component mounting surface of the first circuit board; and An elastic shell member, which is installed on the insulating housing and is elastically held in a snapped state with respect to the counterpart connector device; The elastic shell member is formed to have: a belt-shaped portion provided with a first fixing portion fixed to the component mounting surface of the first circuit board, and extending along the periphery of the board butting surface of the insulating case to make the inner The surface portion elastically abuts on the outer surface portion of the mating connector device; a curved protrusion portion that extends from the end of the band-shaped portion in a curved manner and protrudes away from the insulating housing; and an extension portion, which From the end of the curved protruding portion, it further bends and extends to become a position facing the band-shaped portion, and is provided with a second fixing portion fixed to the component mounting surface of the first circuit board; and from the first The belt-shaped portion, the curved protrusion portion, and the extension portion from the fixed portion to the second fixed portion form a spring portion. The substrate connector device of claim 1, wherein the second fixing portion provided on the extension portion of the elastic shell member protrudes from the extension portion in a state away from the belt-shaped portion of the elastic shell member. The substrate connector device of claim 1, wherein the second fixing portion provided on the extension portion of the elastic shell member protrudes from the extension portion toward the band-shaped portion of the elastic shell member. The substrate connector device of claim 1, wherein the first fixing portion provided on the strip-shaped portion of the elastic shell member and the second fixing portion provided on the extension portion of the elastic shell member are arranged between the insulating shell The position of the body and opposing each other. The substrate connector device of claim 1, wherein the elastic shell member forms a single member, and the single member connects the substrate of the insulating shell with the strip-shaped portion facing each other with a specified interval at its two ends. The abutting face part is partially enclosed, and the curved protrusion part is curvedly extended from each of the two end parts. The substrate connector device according to claim 5, wherein the positions between the two ends of the strip-shaped portion of the elastic shell member are arranged in a plurality of connecting portions each of the plurality of contacts of the insulating shell It protrudes from the insulating case to the outside of the insulating case. The substrate connector device of claim 1, wherein the elastic shell member forms a pair of members mounted on the insulating housing, and each of the pair of elastic shell members forms the pair of members. The strip portion of each of the pair of elastic shell members is interposed with the insulating shell The substrates of the body abut the face surfaces to face each other, the curved protrusions of each of the pair of elastic shell members are arranged at positions facing each other with a specified interval, and the extension portions of each of the pair of elastic shell members are arranged at Positions facing each other at a specified interval. The substrate connector device according to claim 7, wherein the positions between the curved protrusions of the pair of elastic shell members are arranged in a row at the plurality of connecting portions of the plurality of contacts of the insulating housing It protrudes from the insulating case to the outside of the insulating case.

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