Male-female embedded type electric connector

Abstract

The invention provides a male-female fitting type electric connector. The male-female fitting type electric connector is provided with a plug connector (PC) and a socket connector (RC), wherein the plug connector (PC) is formed by holding a plurality of plug-side signal contacts (80), and the socket connector (RC) is formed by holding a plurality of socket-side signal contacts (50). The plug-side signal contact (80) is formed from a plate material having a rectangular cross-section, and has a plug-signal-side contact part (86) and a plug-signal-side contact part (85), wherein the contact surface of the plug-signal-side contact part (86) protrudes so as to have an arc-shaped cross-section, and the contact surface of the plug-signal-side contact part (85) has an arc-shaped cross-section. The socket-side signal contact (50) is formed from a plate material having a rectangular cross-section, and has a socket-signal-side contact part (56), the contact surface of which is formed in a planar shape and which protrudes toward the side in contact with the counterpart contact, and a socket-signal-side contact part (55), the contact surface of which is formed in a planar shape with the counterpart contact.

Description

Technical Field

[0001] The invention relates to a hermaphroditic electric connector. Background Art

[0002] Electrical connectors are used to connect signal lines or power lines between substrates, between substrates and cables, and between cables, and are generally known as male-female chimeric connection structures. The connection structure of a male-female chimeric connector (usually, one side is a female connector called a socket connector, and the other side is a male connector called a plug connector) is that the female connector and the male connector respectively have signal contacts connected to the signal line and power contacts connected to the power line, so that these contacts are electrically connected to each other by abutting against each other (for example, refer to Japanese Patent Gazette No. 2022-178434). Recently, it is often necessary to speed up signal transmission via signal lines. In this case, it is desired to shorten the length of the short stub of the contact (the part of the contact that is not used for signal transmission), and the length of the short stub needs to be shortened as much as possible.

[0003] In a male-female mating connector, there is a structure (a one-point contact structure) in which the contact of one connector can be elastically deformed, and a contact portion for mating with the other contact is provided at its front end, and a plate-shaped abutment portion extending along the mating direction is provided on the contact of the other connector (the mating contact), so that when the male-female connectors are mated, the contact portion of the contact of one connector is abutted with the abutment portion of the contact of the other connector. For example, the connector constructed in Japanese Patent Gazette No. 2022-178434 also has this structure. In this way, in the case of a structure in which the contact portion and the abutment portion abut at one position, i.e., a so-called one-point contact structure, the portion closer to the front end side than the contact portion of the contact of one connector becomes a short stub, and the portion closer to the front end side than the abutment portion of the contact of the other connector becomes a short stub. In the case of a one-point contact structure, in order to improve the contact reliability of the contact, it is required to ensure that the effective mating length of the contact is sufficient, and there is a problem that the length of the short stub tends to be too long.

[0004] In a male-female connector, for example, as disclosed in Japanese Patent Publication No. 4-269478 and Japanese Patent Publication No. 2015-35300, there is a two-point contact structure. In a connector with a two-point contact structure, a structure is provided so that the contact of one connector can be elastically deformed, a contact portion with the other contact is provided at its front end, and a plate-shaped abutment portion extending along the mating direction is provided on the root side, and the contact of the other connector is also provided with an elastically deformable structure, a contact portion with the other contact is provided at its front end, and a plate-shaped abutment portion extending along the mating direction is provided on the root side. Moreover, when the male-female connector is mated and connected, the contact portion of the contact of one connector abuts with the abutment portion of the contact of the other connector (first contact point), and the contact portion of the contact of the other connector abuts with the abutment portion of the contact of one connector (second contact point). If such a two-point contact structure is adopted, the front end side of the contact portion of the contact of one connector becomes a short stub, and the front end side of the contact portion of the contact of the other connector becomes a short stub. Therefore, even if the contact position is offset in the mating direction, the length of the short stub does not change, which has the advantage of not being affected by the displacement of the mating position. Summary of the invention

[0005] Problems to be solved by the invention

[0006] However, in the male-female connector of the two-point contact structure disclosed in Japanese Patent Publication No. 4-269478 and Japanese Patent Publication No. 2015-35300, the metal sheet cut into long strips is bent to form a contact, the cross-section of which is rectangular, and the contact portion and the abutting portion are in surface contact or line contact. In this way, in the case where the abutting contact between the contacts is surface contact or line contact, there is a problem that the contact reliability is easily reduced because the positions of the contact points become multiple or deviated. Therefore, for example, it can be considered to improve the contact reliability by making the contact portion spherical and point contact, but there is a problem that the processing is difficult to make the contact portion only spherical. In addition, this problem is not limited to connectors with a two-point contact structure, but also in connectors with a one-point contact structure. Furthermore, when the male and female connectors are mated together, in the initial stage of mating, the spherical contact parts abut against each other and cross over each other for mating. However, since the spherical surfaces abut against each other, it is easy for them to cause the sides of each other to shift laterally (in a direction perpendicular to the mating direction), resulting in a problem of impaired connection stability.

[0007] The present invention has been made in view of the above problems, and an object of the present invention is to provide a male-female mating type electrical connector, which can improve contact reliability by achieving point contact at all contact portions during mating connection.

[0008] Technical solutions to problems

[0009] In order to achieve such a purpose, the first embodiment of the male and female mating electrical connector of the present invention comprises: a one-side connector (for example, a plug connector PC in the embodiment) which is composed of an insulating one-side retaining component holding a plurality of conductive one-side contacts (for example, the plug-side signal contacts 80 in the embodiment); and an other-side connector which is composed of an insulating other-side retaining component holding a plurality of conductive other-side contacts (for example, the socket-side signal contacts 50 in the embodiment), so that the one-side retaining component is mated with the other-side retaining component, and the one-side contacts are abutted against the corresponding other-side contacts to be electrically connected. Moreover, in this male-female mating electrical connector, the one-side contact is composed of a plate with a rectangular cross-section that is cantilever-supported by the one-side holding component and extends forward in the mating direction, and has a one-side contact portion (for example, the plug signal side contact portion 86 in the embodiment) at the front end portion, the surface of the side that contacts the other-side contact is formed in a cross-sectional arc shape and protrudes toward the side that contacts the other-side contact, and has a one-side abutment portion (for example, the plug signal side contact portion 86 in the embodiment) that extends from the one-side contact portion to the rear in the mating direction and has a surface of the side that contacts the other-side contact formed in a cross-sectional arc shape. The other side contact is composed of a plate having a rectangular cross-section supported by the other side retaining member and extending forward in the mating direction, and has a other side contact portion (for example, the socket signal side contact portion 56 in the embodiment) at the front end portion, the surface of the side in contact with the one side contact being formed into a planar shape and protruding toward the side in contact with the one side contact, and has an other side abutment portion (for example, the socket signal side abutment portion 55 in the embodiment) extending from the other side contact portion to the rear in the mating direction and the surface of the side in contact with the one side contact being formed into a planar shape.

[0010] The second embodiment of the present invention involves a male and female mating electrical connector comprising: a one-side connector, which is composed of an insulating one-side retaining component holding a plurality of conductive one-side contacts; and an other-side connector, which is composed of an insulating other-side retaining component holding a plurality of conductive other-side contacts, so that the one-side retaining component and the other-side retaining component are mated, and the one-side contacts are abutted against the corresponding other-side contacts to be electrically connected. The one-side contact is formed by a plate with a rectangular cross-section supported by the one-side holding component and extending forward in the mating direction, and has a one-side contact portion whose surface on the side in contact with the other-side contact at the front end portion is formed into a planar shape and protrudes toward the side in contact with the other-side contact, and has a one-side abutment portion whose surface on the side in contact with the other-side contact is formed into a circular arc shape extending backward from the one-side contact portion in the mating direction. In addition, the other-side contact is formed by a plate with a rectangular cross-section supported by the other-side holding component and extending forward in the mating direction, and has a other-side contact portion whose surface on the side in contact with the one-side contact at the front end portion is formed into a planar shape and protrudes toward the side in contact with the one-side contact, and has a other-side abutment portion whose surface on the side in contact with the one-side contact portion is formed into a circular arc shape extending backward from the other-side contact portion in the mating direction.

[0011] In the first and second modes of the male and female mating electrical connectors of the present invention, it is preferred that when the one-side retaining component and the other-side retaining component are mated, the one-side contact portion and the other-side contact portion protrude in directions approaching each other in a direction at right angles to the mating direction, abut against each other and elastically deform to pass over, and the one-side contact portion and the other-side abutting portion abut against each other due to elastic force, and the other-side contact portion and the one-side abutting portion abut against each other due to elastic force.

[0012] The third type of male and female mating electrical connector of the present invention comprises: a one-side connector, which is composed of an insulating one-side retaining component holding a plurality of conductive one-side contacts; and an other-side connector, which is composed of an insulating other-side retaining component holding a plurality of conductive other-side contacts, the one-side retaining component and the other-side retaining component being mated together so that the one-side contacts abut against the corresponding other-side contacts and are electrically connected. Moreover, in the male-female mating electrical connector, the one-side contact is composed of a plate with a rectangular cross-section that is cantilever-supported by the one-side retaining component and extends forward in the mating direction, and has a one-side contact portion at the front end portion, the surface of which is in contact with the other-side contact and is formed in a cross-sectional arc shape and protrudes toward the side that contacts the other-side contact, and has an elastic arm portion extending from the one-side contact portion to the rear in the mating direction, and the other-side contact is composed of a plate with a rectangular cross-section that is supported by the other-side retaining component and extends forward in the mating direction, and has an other-side abutment portion whose surface on the side that contacts the one-side contact is formed in a planar shape.

[0013] The male-female mating type electrical connector according to the fourth aspect of the present invention comprises: a one-side connector, which is composed of a plurality of conductive one-side contacts held by an insulating one-side holding member; and an other-side connector, which is composed of a plurality of conductive other-side contacts held by an insulating other-side holding member, wherein the one-side holding member is mated with the other-side holding member so that the one-side contacts abut against the corresponding other-side contacts and are electrically connected. Moreover, in the male-female mating type electrical connector, the one-side contacts are composed of a plate having a rectangular cross-section supported by the one-side holding member and extending forward in the mating direction, a one-side contact portion having a rectangular cross-section and a side surface contacting the other-side contact protruding toward a side curved surface contacting the other-side contact at the front end, an elastic arm portion extending from the one-side contact portion to the rear in the mating direction, and the other-side contact having an other-side abutting portion having a side surface extending in the mating direction and contacting the one-side contact and having a circular arc cross-section.

[0014] In the above-mentioned hermaphroditic electrical connector of the present invention, it is preferable that the one-side contact and the other-side contact function as signal contacts for transmitting electrical signals.

[0015] In the above-mentioned hermaphroditic electrical connector of the present invention, it is preferable that the one-side contact and the other-side contact are contacts that function as power supply contacts for transmitting electric power.

[0016] Effects of the Invention

[0017] The first embodiment of the present invention comprises a first contact portion having a first contact portion protruding at a front end portion and having a surface formed in a circular arc shape in cross section with respect to one side of the contact contact of the other side, and a first abutment portion having a first contact portion extending from the first contact portion toward the rear in the mating direction and having a surface formed in a circular arc shape in cross section with respect to one side of the contact contact of the other side. In addition, the second contact portion has a second contact portion having a first contact portion protruding at a front end portion and having a surface formed in a flat shape with respect to one side of the contact contact of the first side, and a second abutment portion having a first contact portion extending from the second contact portion toward the rear in the mating direction and having a surface formed in a flat shape with respect to one side of the contact contact of the first side. Therefore, if the first retaining component and the second retaining component are mated, the first contact portion and the second abutment portion are abutted against each other by elastic force, and the second contact portion and the first abutment portion are abutted against each other by elastic force, so that they can be in contact at two points. In addition, at this time, since the contact portion on one side that is formed in a circular arc shape in cross section and protrudes toward the side that contacts the contact on the other side abuts against the abutting portion on the other side that is formed in a planar shape, point contact is achieved. The contact portion on the other side that is formed in a circular arc shape in cross section and protrudes toward the side that contacts the contact on one side abuts against the abutting portion on the one side that is formed in a planar shape, point contact is also achieved here. Point contact can be achieved on either side of the two point contact portions, and contact reliability is improved.

[0018] In addition, according to a second embodiment of the present invention, the one-side contact has a one-side contact portion at the front end portion, the surface of the side that contacts the other-side contact is formed into a planar shape and protrudes, and has a one-side abutment portion extending from the one-side contact portion to the rear in the mating direction and the surface of the side that contacts the other-side contact is formed into a cross-sectional arc shape. In addition, the other-side contact has a other-side contact portion at the front end portion, the surface of the side that contacts the one-side contact is formed into a planar shape and protrudes, and has a other-side abutment portion extending from the other-side contact portion to the rear in the mating direction and the surface of the side that contacts the one-side contact is formed into a cross-sectional arc shape. Therefore, when the one-side retaining component and the other-side retaining component are mated, the one-side contact portion and the other-side abutment portion are subjected to elastic force and abut against each other, and the other-side contact portion and the one-side abutment portion are subjected to elastic force and abut against each other, so that two-point contact can be performed. In addition, at this time, the contact portion on one side formed in a planar shape and protruding toward the side in contact with the contact on the other side abuts against the abutting portion on the other side formed in a cross-sectional arc shape, thereby forming point contact. The contact portion on the other side formed in a planar shape and protruding toward the side in contact with the contact on one side abuts against the abutting portion on one side formed in a cross-sectional arc shape, thereby forming point contact here as well. Point contact can be achieved at either side of the two point contact portions, thereby increasing contact reliability.

[0019] According to the third embodiment of the present invention, the one-side contact has a front end portion with a surface on the side in contact with the other-side contact formed in a cross-sectional arc shape, and a one-side contact portion protruding toward the side in contact with the other-side contact. The other-side contact is composed of a plate with a rectangular cross-sectional shape supported by the other-side retaining component and extending forward in the mating direction, and has an other-side abutment portion on the side in contact with the one-side contact formed in a planar shape. Therefore, the one-side contact portion and the other-side abutment portion can be made into point contact, thereby improving contact reliability.

[0020] According to the fourth embodiment of the present invention, the one-side contact has a one-side contact portion at the front end portion which has a rectangular cross-section and whose surface on the side in contact with the other-side contact protrudes in a curved shape toward the side in contact with the other-side contact, and the other-side contact has an other-side abutment portion which extends in the mating direction and whose surface on the side in contact with the one-side contact is formed in a circular arc shape in cross-section, thereby enabling the one-side contact portion to make point contact with the other-side abutment portion, thereby improving contact reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a perspective view of the appearance of the male and female mating type electrical connector in a mated state according to the embodiment of the present invention.

[0022] Figure 2 It is a cross-sectional view of the above-mentioned male and female mating type electrical connector in a mated state.

[0023] Figure 3 It is a perspective view of the appearance of the receptacle connector RC constituting the above-mentioned male-female mating type electrical connector.

[0024] Figure 4 It is an exploded perspective view of the above-mentioned receptacle connector RC.

[0025] Figure 5 It is a cross-sectional view of the above-mentioned receptacle connector RC in the left-right direction.

[0026] Figure 6 It is a cross-sectional view of the receptacle connector RC in the front-to-back direction.

[0027] Figure 7 It is a perspective view of the appearance of a plug connector PC constituting the above-mentioned male-female mating type electrical connector.

[0028] Figure 8 It is an exploded perspective view of the plug connector PC.

[0029] Fig. 9 It is a cross-sectional view of the plug connector PC in the left-right direction.

[0030] Fig.102 is a cross-sectional view of the plug connector PC in the front-rear direction.

[0031] Fig.11 1 is a side view showing a state in which the socket signal side connecting arm portion and the plug signal side connecting arm portion are in contact and electrically connected ( Fig.11 (A)) and an enlarged side view showing the signal contacts on the socket side ( Fig.11 (B)) and an enlarged side view showing the signal contacts on the plug side ( Fig.11 (C)).

[0032] Fig.12 This is a side view of the connector arm on the signal side of the socket. Fig.12 (A)) and stereogram ( Fig.12 (B)).

[0033] Fig.13 is along Fig.13 Arrow X1 - X1 indicates a perspective view and a cross-sectional view of a cross section of the signal-side connecting arm portion of the socket.

[0034] Fig.14 is along Fig.13 Arrow X2-X2 indicates a perspective view and a cross-sectional view of a cross section of the signal-side connecting arm portion of the socket.

[0035] Fig.15 This is a side view of the signal contact on the plug side ( Fig.15 (A)) and stereogram ( Fig.15 (B)).

[0036] Fig.16 is along Fig.15 Arrows Y1 - Y1 indicate a perspective view and a cross-sectional view of a cross section of the plug-side signal contact.

[0037] Fig.17 is along Fig.15 Arrows Y2 - Y2 indicate a perspective view and a cross-sectional view of a cross section of the plug-side signal contact.

[0038] Fig.18 This is an enlarged perspective view showing a state in which the receptacle signal-side connecting arm portion and the plug signal-side connecting arm portion are in contact with each other and are electrically connected.

[0039] Fig.19 It means that the signal side connecting arm of the socket and the signal side connecting arm of the plug are in contact and electrically connected. Fig.18 A stereoscopic view and a cross-sectional view of the cross-sectional shape of region R1.

[0040] Fig. 20 It means that the signal side connecting arm of the socket and the signal side connecting arm of the plug are in contact and electrically connected. Fig.18 A stereoscopic view and a cross-sectional view of the cross-sectional shape of region R2.

[0041] Fig.21 1 is a perspective view showing the contact state of the socket signal side connecting arm portion and the plug signal side connecting arm portion in the initial state of the mating of the socket connector RC and the plug connector PC ( Fig.21 (A)) and cross-sectional stereogram ( Fig.21 (B)).

[0042] Fig. 22 It is a cross-sectional view of the contact portion of the receptacle signal-side connecting arm portion and the plug signal-side connecting arm portion in the initial state of mating between the receptacle connector RC and the plug connector PC.

[0043] Fig.23 1 is a perspective view showing the contact state of the socket signal side connecting arm portion and the plug signal side connecting arm portion in the initial state of the mating of the socket connector and the plug connector when the present invention is not applied ( Fig.23 (A) and cross-sectional stereogram ( Fig.23 (B)).

[0044] Fig.24 This is a cross-sectional view of the contact portion of the receptacle connector and the plug connector in an initial mating state when the present invention is not applied. DETAILED DESCRIPTION

[0045] Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Figure 1 and Figure 2 A male-female mating type electrical connector according to an embodiment of the present invention is shown. The electrical connector comprises a receptacle connector RC and a plug connector PC. Figure 1 and Figure 2 Indicates the state of the two connectors RC and PC being connected. Figure 2 As shown, the socket connector RC is mounted on the first substrate CB1, and the plug connector PC is mounted on the second substrate CB2. As shown in the figure, signal transmission and power transmission are performed between the first substrate CB1 and the second substrate CB2 via the two connectors RC and PC connected in a mating manner.

[0046] First, the socket connector RC is described. The appearance of the socket connector RC is as follows: Figure 3 As shown, it is decomposed into structural components and Figure 4 Furthermore, its left and right cross sections and front and rear cross sections are as shown in Figure 5 and Figure 6As shown. The socket connector RC comprises a fixed housing 10 made of insulating material, a movable housing 20 made of insulating material, a plurality of socket-side signal contacts 50 and socket-side power contacts 30 made of conductive material installed across the two housings 10, 20, and a socket-side fixing fitting 40 made of conductive material installed at the four corners of the lower part of the fixed housing 10. The fixed housing 10 is formed into a rectangular frame shape having a fixed-side space 14 that passes through from top to bottom by front and rear walls 11, 11, and left and right walls 12, 12. A plurality of socket-side signal press-in grooves 15 extending up and down and a plurality of socket-side power press-in grooves 16 extending down are formed on the inner surfaces of the front and rear walls 11, 11. The plurality of socket-side signal press-in grooves 15 are used to press in and hold the socket-side signal fixing portion 51b of the socket-side signal contact 50, and the plurality of socket-side power press-in grooves 16 are used to press in and hold the socket-power fixing portion 31b of the socket-side power contact 30. The left and right walls 12 , 12 extend upward, and a guide space 12 a is formed on the inner surfaces thereof.

[0047] The movable housing 20 is formed into a rectangular box shape with upper and lower openings by front and rear walls 21, 21, and left and right walls 22, 22. The left and right walls 22 have guide protrusions 27 at their lower parts, respectively, and the guide protrusions 27 are located in the guide space 12a for floating guidance. A partition wall extending up and down and left and right is formed in the internal space 23 of the rectangular box shape, and the internal space 23 is divided into two parts front and back by the partition wall. The partition wall is composed of a signal contact holding partition wall 25 located in the center and power contact holding partition walls 24, 24 located on the left and right of the signal contact holding wall 25. The signal contact holding partition wall 25 holds the socket signal side connecting arm portion 53 of the socket side signal contact 50 in a cantilevered manner at its front and rear, and the power contact holding partition wall 24 holds the socket power side contact portion 33 of the socket power contact 30 at its front and rear.

[0048] The socket-side signal contact 50 is formed by bending a thin and long plate made of a conductive material, and a pair of front and rear socket-side signal contacts 50 are arranged side by side in a front-to-rear symmetrical arrangement. The socket-side signal base 51 of these socket-side signal contacts 50 has: a socket-signal-side fixing portion 51b, which is pressed into and fixed in the signal pressing groove 15; and a socket-signal-side mounting portion 51a, which extends in the lateral direction from the lower end of the socket-signal-side fixing portion 51b and is surface-mounted on the first substrate CB1. A socket-signal-side middle portion 52 is provided, which is bent upward into a crank shape and extends from the socket-signal-side base 51, and a socket-signal-side connecting arm portion 53 is provided to connect to the upper portion of the socket-signal-side middle portion 52. The socket-signal-side connecting arm portion 53 is fixedly held on the signal contact holding partition wall 25, and further extends in a cantilevered shape. The structure of this portion will be described later. The socket signal side intermediate portion 52 is bent upward in a crank shape and extends. The socket signal side intermediate portion 52 is easily elastically deformed and has a floating function of the movable housing 20 relative to the fixed housing 10 .

[0049] The socket-side power supply contact 30 is formed by bending a plate made of a relatively wide conductive material, and a pair of front and rear socket-side power supply contacts 30 are arranged symmetrically, with two pairs arranged on the left and right of the socket-side signal contacts 50 arranged as described above. The socket-side power supply base 31 of the socket-side power supply contact 30 has: a socket-power supply side fixing portion 31b, which is pressed into and fixed in the socket-side power supply press-in groove 16; and a socket-power supply side mounting portion 31a, which is connected to the socket-power supply side fixing portion 31b and extends downward, and is mounted in the through hole of the first substrate CB1. A socket-power supply side middle portion 32 is provided, which is bent and extended upward from the socket-power supply side base 31, and a socket-power supply side contact portion 33 is provided, which is connected to the upper portion of the socket-power supply side middle portion 32. In each socket-side power supply contact 30, as shown in FIG. Figure 4 As shown, the socket power side fixing portion 31 and the socket power side contact portion 33 are directly formed using a wide plate, but the socket power side middle portion 32 is divided into multiple parts by slits extending up and down. The socket power side middle portion 33 is easy to deform elastically and has a floating function of the movable shell 20 relative to the fixed shell 10.

[0050] like Figure 2 As shown, the socket connector RC constructed as above is surface mounted on the first substrate CB1. The surface mounting is performed by welding the socket-side fixing fitting 40 to the pad pattern of the first substrate CB1, and at the same time, the socket signal-side mounting portion 51a of the socket-side signal contact 50 is welded to the signal pattern, and the socket power-side mounting portion 31a of the socket-side power contact 30 is inserted and joined to the power through hole.

[0051] Next, the plug connector PC is described. The appearance of the plug connector PC is as follows: Figure 7 As shown, it is decomposed into structural components and Figure 8 Furthermore, its left and right cross sections and front and rear cross sections are as shown in Fig. 9 and Fig.10 As shown. The plug connector PC includes a holding housing 60 made of an insulating material, a plurality of plug-side signal contacts 80 and a plug-side power contact 70 made of a conductive material mounted on the holding housing 60, and a plug-side fixing fitting 90 made of a conductive material mounted on the lower left and right parts of the holding housing 60. The holding housing 60 is formed into a rectangular frame shape having a configuration space 64 extending vertically by front and rear walls 61, 61 and left and right walls 62, 62. On the inner surfaces of the front and rear walls 61, 61, a plurality of plug-side signal press-in grooves 65 extending vertically for press-fitting and retaining the plug-side signal contacts 80 and a plug-side power press-in groove 66 extending vertically for press-fitting and retaining the plug-side power contact 70 are formed.

[0052] The plug-side signal contact 80 is made by bending a thin and long plate made of a conductive material, and a pair of front and rear plug-side signal contacts 80 are arranged side by side on the left and right and are arranged symmetrically in the front and back. The plug-side signal base 81 of these plug-side signal contacts 80 includes: a plug-signal side fixing portion 81b, which is pressed into and fixed in the plug-side signal pressing groove 65; and a plug-signal side mounting portion 81a, which extends in the horizontal direction from the lower end of the plug-signal side fixing portion 81b and is surface-mounted on the second substrate CB2. The plug-side signal contact 80 also includes a plug-signal side connecting arm portion 83 bent upward and connected from the plug-signal side base portion 81. The plug-signal side connecting arm portion 83 is fixedly held in the plug-side signal pressing groove 65 and further extends in a cantilevered shape. The structure of this portion will be described later.

[0053] The plug-side power contact 70 is formed by bending a plate made of a relatively wide conductive material, and a pair of front and rear plug-side power contacts 70 are arranged symmetrically, with two pairs arranged on the left and right of the plug-side signal contacts 80 arranged as described above. The plug-side power base 71 of the plug-side power contact 70 includes: a plug-power side fixing portion 71b, which is pressed into and fixed in the plug-side power press-in groove 66; and a plug-power side mounting portion 71a, which is connected to the plug-power side fixing portion 71b and extends downward, and is mounted in the through hole of the second substrate CB2. The plug-side power contact 70 also has a plug-power side contact portion 73 that is bent upward and connected from the plug-power side base 71. From Figure 8 It can be seen that the front end of the plug power supply side contact portion 73 is open and is formed in a plurality of parts.

[0054] like Figure 2As shown, the plug connector PC constructed as described above is surface mounted on the second substrate CB2. This surface mounting is performed by soldering the plug-side fixing fitting 90 to the land pattern of the second substrate CB2, and at the same time, the plug signal side mounting portion 81a of the plug-side signal contact 80 is soldered to the signal pattern, and the plug power side mounting portion 71a of the plug-side power contact 70 is inserted and joined to the power through hole.

[0055] like Figure 1 and Figure 2 As shown, the socket connector RC and the plug connector PC of the above structure are connected by inserting the retaining housing 60 of the plug connector PC into the movable housing 20 of the socket connector RC. When connected in this way, the socket signal side connecting arm portion 53 of the socket side signal contact 50 abuts against the plug signal side connecting arm portion 83 of the plug side signal contact 80 and is electrically connected, and the socket power side contact portion 33 of the socket side power contact 30 abuts against the plug power side contact portion 73 of the plug side power contact 70 and is electrically connected.

[0056] In this way, regarding the structure in which the socket signal side connecting arm portion 53 of the socket side signal contact 50 and the plug signal side connecting arm portion 83 of the plug side signal contact 80 abut and are electrically connected, refer to Figures 11 to 24 Provide explanation. Fig.11 (A) shows the abutting connection state of the socket-side signal contact 50 and the plug-side signal contact 80 when the socket connector RC and the plug connector PC are mated and connected. Fig.11 (B) shows the socket side signal contact 50 in an enlarged manner. Fig.11 (C) shows the plug-side signal contact 80 in an enlarged manner.

[0057] like Fig.11 As shown in (B), the socket signal side connecting arm portion 53 of the socket signal contact 50 has: a socket signal side retained portion 54, which is connected to and extends from the socket signal side middle portion 52 and is fixedly retained on the signal contact retaining partition wall 25; a socket signal side abutment portion 55, which extends in a cantilevered manner from the socket signal side retained portion 54; and a socket signal side abutment portion 56, which protrudes convexly toward the abutment side at the front end of the socket signal side abutment portion 55. Furthermore, a socket signal side stub portion 57 is provided at the front end side of the socket signal side contact portion 56. In addition, as shown Fig.11 As shown in (C), the plug signal side connecting arm portion 83 of the plug signal side contact 80 includes: a plug signal side abutment portion 85 that is bent into a crank shape and extends in a cantilever shape from the plug signal side fixing portion 81b; and a plug signal side contact portion 86 that protrudes convexly toward the abutment side at the front end of the plug signal side abutment portion 85. Furthermore, a plug signal side stub portion 87 is provided at the front end side of the plug signal side contact portion 86.

[0058] When the socket connector RC and the plug connector PC are connected together, Fig.11 As shown in (A), the socket-side signal contact 50 and the plug-side signal contact 80 abut against each other. At this time, the socket-side signal contact portion 56 abuts against the plug-side signal abutment portion 85 (referred to as the first contact point), and the plug-side signal contact portion 86 abuts against the socket-side signal abutment portion 55 (referred to as the second contact point). In addition, the socket-signal abutment portion 55 extending in a cantilever shape and the plug-signal abutment portion 85 extending in a cantilever shape can be elastically deformed, thereby applying a pressing force when the socket-signal-side contact portion 56 and the plug-signal-side contact portion 86 of the first and second contact points contact with the contacting counterpart (the plug-signal abutment portion 85 and the socket-signal-side abutment portion 55). At these contact points, in order to ensure the contact reliability of the point contact between the two, the shapes of the socket-side signal contact portion 56 and the socket-signal-side abutment portion 55 of the socket-side signal contact 50, and the shapes of the plug-signal-side contact portion 86 and the plug-signal-side abutment portion 85 of the plug-side signal contact 80 are configured as described below.

[0059] first, Fig.12 The socket signal side connecting arm portion 53 of the socket signal contact 50 is shown in an enlarged manner. Fig.12 (A) shows a side view of the socket signal side connecting arm portion 53, Fig.12 As described above, the socket-side signal contact 50 is formed by bending a thin and long conductive material plate, and its cross section is rectangular. Specifically, the cross section of the arrow X1-X1 in the area of ​​the circular surrounding portion P1 of the socket signal-side contact portion 56 is Fig.13 The socket signal side contact portion 56 is bent so as to be convex on the abutting side, and its longitudinal shape (shape when viewed from the side) is an arc shape. The cross-sectional shape of the arrow X2-X2 in the area of ​​the circular surrounding portion P2 of the socket signal side abutting portion 55 is also as shown in FIG. Fig.14 The socket signal side contact portion 55 extends straight in the longitudinal direction, and the contact side surface is a flat surface.

[0060] also, Fig.15 80 is a plug-side signal contact. Fig.15 (A) shows a side view of the plug-side signal contact 80, Fig.15 (B) shows a stereoscopic view. As described above, the plug-side signal contact 80 is formed by bending a thin and long conductive material plate, and its cross section is originally a rectangular shape. However, in the plug-side signal contact 80, as shown in FIG. Fig.16As shown, the cross-sectional shape of the arrow Y1-Y1 in the area of ​​the circular enclosing portion Q1 including the plug signal side contact portion 86 is formed so that the surface on the abutting side (the surface on the side abutting against the socket signal side abutting portion 55) is an arc shape. That is, the surface on the abutting side of the slender plate with a rectangular cross-section is formed into a cylindrical shape (fish cake shape) with a cross-sectional arc shape, and then, is bent in a convex manner on the abutting side when viewed from the side. As a result, the plug signal side contact portion 86 becomes a spherical convex shape. In addition, the cross-sectional shape of the arrow Y2-Y2 in the area of ​​the circular enclosing portion Q2 of the plug signal side abutting portion 85 is as shown in FIG. Fig.17 As shown, the contact side surface (the surface that contacts the socket signal side contact portion 56) is formed into an arc shape. That is, the contact side surface of the elongated plate with a rectangular cross section is formed into a cylindrical shape (fish cake shape) with an arc cross section and extending straight.

[0061] Fig.18 The portion where the socket signal side connecting arm portion 53 of the socket signal contact 50 and the plug signal side connecting arm portion 83 of the plug signal contact 80 configured as described above abut and are electrically connected is shown in an enlarged manner. Fig.18 It is a magnified representation Fig.11 FIG. 8 is a diagram of the connection portion between the socket signal side connection arm portion 53 and the plug signal side connection arm portion 83 in (A). Fig.18 It can be seen that when the socket connector RC and the plug connector PC are mated and connected, the socket signal side contact portion 56 abuts against the plug signal side abutment portion 85 (the first contact point represented by the circular enclosure R1), and the plug signal side contact portion 86 abuts against the socket signal side abutment portion 55 (the second contact point represented by the circular enclosure R2).

[0062] like Fig.19 As shown, at the first contact point indicated by the circular enclosure R1, the socket signal side contact portion 56 has a rectangular cross-sectional shape 56a, and is a shape that is convexly curved toward the abutting side when viewed from the side. On the other hand, the cross-sectional shape 85a of the plug signal side abutting portion 85 is a cylindrical shape (fish cake shape) in which the abutting side surface (the surface on the side that abuts against the socket signal side contact portion 56) extends straight in an arc shape. Therefore, the two are in point contact at the first contact point. In addition, as shown in FIG. Fig. 20As shown, at the second contact point indicated by the circular enclosure R1, the socket signal side abutment portion 55 extends straightly with a rectangular cross-sectional shape 55a, and the abutment side surface is a flat shape. On the other hand, the plug signal side contact portion 86 is a spherical convex shape as described above. Therefore, both are also in point contact at the second contact point. In this way, since the first and second contact points are both point contacts, high contact reliability can be obtained. In addition, even if these first and second contact points are slightly offset due to dimensional tolerances, etc., that is, even if the mating position is slightly offset, the length of the short stub portion 57, 87 will not be affected, so the influence of the mating position offset on the transmission signal characteristics can be suppressed.

[0063] The socket-side signal contact 50 and the plug-side signal contact 80 according to the above structure also have advantages when the two are connected by mating. Figure 21 to Figure 24 Provide explanation. Fig.21 1 and 2 show a state in which the receptacle signal-side connecting arm portion 53 and the plug signal-side connecting arm portion 83 are in contact with each other in an initial mating state when the receptacle connector RC and the plug connector PC are mated and connected.

[0064] At the beginning of mating, the short stub part 57 of the socket signal side abuts against the short stub part 87 of the plug signal side, and the two are pressed together along the inclination, and the socket signal side connecting arm part 53 and the plug signal side connecting arm part 83 are elastically deformed. Moreover, the socket signal side contact part 56 and the plug signal side contact part 86 pass over each other to form Fig.18 The connection status is shown. Fig. 22 As shown, the socket signal side contact portion 56 and the socket signal side short stub portion 57 are rectangular in cross section 57a, so the abutting surface is a plane, and the abutting surface side of the cross section 87a of the plug signal side contact portion 86 and the plug signal side short stub portion 87 is an arc shape, so that the socket signal side contact portion 56 and the plug signal side contact portion 86 can smoothly pass over each other, forming Fig.18 Displays the connection status.

[0065] However, even if both the receptacle signal side contact portion 56 and the plug signal side contact portion 86 have spherical convex shapes and both the receptacle signal side abutment portion 55 and the plug signal side abutment portion 85 have rectangular cross-sections, the two can be brought into point contact. Fig.23 The figure shows the initial state of mating under such a configuration, where the short stub part 157 on the socket signal side and the short stub part 187 on the plug signal side are in contact with each other, and the socket signal side connecting arm part 153 and the plug signal side connecting arm part 183 are elastically deformed, and the socket signal side contact part 156 and the plug signal side contact part 186 pass over each other. However, in this case, if Fig.24As shown in (A), since the socket signal side short stub part 157 and the plug signal side short stub part 187, both of which have arc-shaped abutting surfaces, abut, if the abutting position is laterally offset, as shown in FIG. Fig.24 As shown by arrow C in (B), there is a problem of positional displacement caused by pressing in the lateral direction along the arc. Therefore, it is not desirable that both the socket signal side contact portion 56 and the plug signal side contact portion 86 are spherical convex shapes, and both the socket signal side abutment portion 55 and the plug signal side abutment portion 85 are rectangular cross-sectional structures, which are not applicable to the present invention.

[0066] By replacing the structure described above, as a second embodiment, the socket signal side contact portion and the plug signal side contact portion can also be both shaped by bending a rectangular cross-section plate, so that the socket signal side abutment portion and the plug signal side abutment portion are both formed into a cylindrical shape (fish cake shape) in which the surface of the abutment side of the elongated plate with a rectangular cross-section extends straight in a cross-sectional arc shape. That is, the plug signal side contact portion 86 can also be the same shape as the socket signal side contact portion 56, and the socket signal side abutment portion 55 is the same shape as the plug signal side abutment portion 85. Even with such a configuration, both the first and second contact points can be in point contact. In the case of this structure, the abutment surface of the socket signal side short stub portion and the plug signal side short stub portion is a plane, which allows the two to smoothly cross and fit together.

[0067] In the above description, a two-point contact type male-female mating connector is shown, but in the one-point contact type, a point contact structure of the following structure can also be adopted to improve the contact reliability. For example, the socket signal side connecting arm portion 53 of the socket side signal contact 50 can also be kept as it is, so that the plug signal side connecting arm portion 83 of the plug side signal contact 80 only has the plug signal side abutment portion 85, and the plug signal side contact portion 86 and the plug signal side stub portion 87 are removed. In this case, the plug signal side abutment portion 85 can also be set as a cantilever elastic deformation structure. In the case of this structure, the socket signal side contact portion 56 with a rectangular cross-section and a convex shape when viewed from the side abuts against the plug signal side contact portion 85 with a cylindrical shape (fish cake shape) with a circular arc cross-section and straight extension, and makes one-point contact. In this way, since the abutment portion becomes a point contact, high contact reliability can be ensured.

[0068] Furthermore, on the contrary, it is also possible to set the plug signal side connecting arm portion 83 of the plug side signal contact 80 to remain as it is, and the socket signal side connecting arm portion 53 of the socket side signal contact 50 to have only the socket signal side abutting portion 55, and remove the socket signal side contact portion 56 and the socket signal side stub portion 57. In this case, the socket signal side abutting portion 55 may not be set to a cantilever elastically deformable structure. In this case, the plug signal side contact portion 86, which is a spherical shape formed by bending a plate material with a circular arc cross section into a convex shape, abuts against the socket signal side abutting portion 55, which is a rectangular cross section, extends straight, and has an abutting surface on a plane, and makes a point contact. In this way, since the abutting portion is in point contact, high contact reliability can be ensured.

[0069] The connection structure used for the socket-side signal contact 50 and the plug-side signal contact 80 in the socket connector RC and the plug connector PC described above can also be used for the contact structure of the socket power contact 30 and the plug-side power contact 70. In addition, the socket connector RC described above is a floating type connector structure, but it can also be a connector other than the floating type.

[0070] Description of Reference Numerals

[0071] RC socket connector PC plug connector

[0072] 10 Fixed housing 15 Press-in groove for socket side signal

[0073] 16 Press-in groove for power supply on the socket side 20 Movable housing

[0074] 24 Power contact holding partition wall 25 Signal contact holding partition wall

[0075] 30 socket side power supply contact 31 socket power supply side base

[0076] 31a socket power supply side mounting portion 31b socket power supply side fixing portion

[0077] 32 socket power supply side middle part 33 socket power supply side contact part

[0078] 40 socket side fixing accessories 50 socket side signal contact

[0079] 51 socket signal side base 51a socket signal side mounting portion

[0080] 51b socket signal side fixing part 52 socket signal side middle part

[0081] 53 socket signal side connecting arm portion 54 socket signal side held portion

[0082] 55 socket signal side abutment portion 56 socket signal side contact portion

[0083] 57 socket signal side short stub part 60 holding housing

[0084] 65 Plug side signal press-in groove 66 Plug side power press-in groove

[0085] 70 Plug side power supply contact 71 Plug power supply side base

[0086] 71a Plug power supply side mounting portion 71b Plug power supply side fixing portion

[0087] 73 plug power side contact portion 80 plug side signal contact

[0088] 81 plug signal side base 81a plug signal side mounting portion

[0089] 81b Plug signal side fixing portion 83 Plug signal side connecting arm portion

[0090] 85 plug signal side abutment portion 86 plug signal side contact portion

[0091] 87 Plug signal side short stub 90 Plug side fixing parts

Claims

1. A hermaphroditic electrical connector, characterized in that: The invention comprises: a first side connector, which is composed of a plurality of first side contacts having conductivity held by an insulating first side holding component; and a second side connector, which is composed of a plurality of second side contacts having conductivity held by an insulating second side holding component, wherein the first side holding component and the second side holding component are engaged with each other so that the first side contacts abut against the corresponding second side contacts and are electrically connected. The one-side contact is composed of a plate having a rectangular cross-section and supported by the one-side holding member in a cantilever manner and extending forward in the mating direction. The one-side contact has a one-side contact portion at a front end portion, the surface of the side in contact with the other-side contact being formed in a circular arc shape in cross section and protruding toward the side in contact with the other-side contact. The one-side contact has a one-side abutment portion extending from the one-side contact portion to the rear in the mating direction and having a surface on one side in contact with the other-side contact formed in a circular arc shape in cross section. The other-side contact is composed of a plate having a rectangular cross-section and supported by the other-side holding member in a cantilever manner and extending forward in the mating direction. The other-side contact has a second-side contact portion at a front end portion, the surface of the side in contact with the first-side contact being formed in a planar shape and protruding toward the side in contact with the first-side contact. The other-side contact includes a second-side abutment portion extending from the second-side contact portion toward the rear in the mating direction and having a surface on one side in contact with the first-side contact formed in a planar shape.

2. A hermaphroditic electrical connector, characterized in that: The invention comprises: a first side connector, which is composed of a plurality of first side contacts having conductivity held by an insulating first side holding component; and a second side connector, which is composed of a plurality of second side contacts having conductivity held by an insulating second side holding component, wherein the first side holding component and the second side holding component are engaged with each other so that the first side contacts abut against the corresponding second side contacts and are electrically connected. The one-side contact is composed of a plate having a rectangular cross-section and supported by the one-side holding member in a cantilever manner and extending forward in the mating direction. The one-side contact has a one-side contact portion at a front end portion, the surface of the side in contact with the other-side contact being formed in a flat shape and protruding toward the side in contact with the other-side contact. The one-side contact has a one-side abutment portion extending from the one-side contact portion to the rear in the mating direction and having a surface on one side in contact with the other-side contact formed in a circular arc shape in cross section. The other-side contact is composed of a plate having a rectangular cross-section and supported by the other-side holding member in a cantilever manner and extending forward in the mating direction. The other-side contact has a second-side contact portion at a front end portion, the surface of the side in contact with the first-side contact being formed in a planar shape and protruding toward the side in contact with the first-side contact. The other-side contact includes a second-side abutment portion extending from the second-side contact portion toward the rear in the mating direction and having a surface on one side in contact with the first-side contact formed in a circular arc shape in cross section.

3. The hermaphroditic electrical connector according to claim 1 or 2, characterized in that: When the one-side holding member and the other-side holding member are engaged with each other, The one-side contact portion and the other-side contact portion protrude toward each other in a direction perpendicular to the mating direction, and abut against each other and elastically deform to pass over each other. The one-side contact portion and the other-side abutting portion are abutted against each other by an elastic force, and the other-side contact portion and the one-side abutting portion are abutted against each other by an elastic force.

4. A hermaphroditic electrical connector, characterized in that: The invention comprises: a first side connector, which is composed of a plurality of first side contacts having conductivity held by an insulating first side holding component; and a second side connector, which is composed of a plurality of second side contacts having conductivity held by an insulating second side holding component, wherein the first side holding component and the second side holding component are engaged with each other so that the first side contacts abut against the corresponding second side contacts and are electrically connected. The one-side contact is composed of a plate having a rectangular cross-section and supported by the one-side holding member in a cantilever manner and extending forward in the mating direction. The one-side contact has a one-side contact portion at a front end portion, the surface of the side in contact with the other-side contact being formed in a circular arc shape in cross section and protruding toward the side in contact with the other-side contact. The one-side contact has an elastic arm portion extending from the one-side contact portion to the rear in the mating direction. The other-side contact is formed of a plate having a rectangular cross-section and supported by the other-side holding member and extending forward in the mating direction, and has an other-side abutment portion having a flat surface on one side in contact with the one-side contact.

5. A male-female electrical connector, characterized in that: The invention comprises: a first side connector, which is composed of a plurality of first side contacts having conductivity held by an insulating first side holding component; and a second side connector, which is composed of a plurality of second side contacts having conductivity held by an insulating second side holding component, wherein the first side holding component and the second side holding component are engaged with each other so that the first side contacts abut against the corresponding second side contacts and are electrically connected. The one-side contact is composed of a plate having a rectangular cross-section and supported by the one-side holding member in a cantilever manner and extending forward in the mating direction. The one-side contact has a rectangular cross-sectional shape at the front end portion, and a one-side contact portion having a curved surface protruding toward the side in contact with the other-side contact. The one-side contact has an elastic arm portion extending from the one-side contact portion to the rear in the mating direction. The other-side contact includes a second-side contact portion extending in the mating direction and having a surface on one side in contact with the first-side contact formed in a circular arc shape in cross section.

6. The hermaphroditic electrical connector according to any one of claims 1 to 2 or 4 to 5, characterized in that: The one-side contact and the other-side contact are contacts that function as signal contacts for transmitting electrical signals.

7. The hermaphroditic electrical connector according to any one of claims 1 to 2 or 4 to 5, characterized in that: The one-side contact and the other-side contact are contacts that function as power supply contacts for transmitting electric power.

Images