JP2018160347A - Connector device for power supply - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably remove foreign matter adhering to a connection terminal without being influenced by the posture of the connection terminal of the plug to be inserted and removed with respect to a fixed terminal in the receptacle in a power supply connector device including a plug and a receptacle, and to be durable. Excellent in sex. A female contact terminal 14ai has a main contact terminal 26 and 28 that cooperatively sandwich a contact end portion of a male contact of a plug when the plug is connected to a receptacle, and a main contact terminal inside. It is configured to include metal cleaning terminals 22 and 24 arranged so as to surround 26 and 28. [Selection diagram] Fig. 2

Description

  The present invention relates to a power supply connector device including a plug and a receptacle.

  For example, as disclosed in Patent Document 1, an electric vehicle such as an electric assist bicycle or a small motorcycle includes a battery case containing a battery, and the battery case is detachably supported by a battery holder. The mounting part of the battery case has a contact point on the bottom surface that is electrically connected to a connection terminal of a battery holder described later. A connection terminal is disposed on the bottom surface of the recess of the battery holder. The battery case is fixed by an upper fixing device and a battery holder (lower fixing device).

  When the battery case is mounted on the battery holder, the mounting portion of the battery case is inserted into the recess from the opening of the outer wall of the battery holder, and the pivot shaft of the mounting portion is locked to the peripheral edge of the cut portion of the outer wall. In this state, the mounting portion of the battery case is fixed to the battery holder by rotating the pivot shaft and the periphery of the notch portion as fulcrums. At that time, the contact on the bottom surface of the battery case is brought into contact with the connection terminal of the battery holder.

  The connection terminals used in the battery case and the battery holder as described above may have uncertain electrical connection due to adhesion of foreign matters such as dust. As a countermeasure against such defective connection, for example, as shown in Patent Document 2, in a male connector and a female connector, the upper and lower parts that remove foreign matters attached to the surface of the tab portion of the male terminal fitting during fitting work are removed. There has been proposed one in which the contact protrusion is provided integrally with the terminal insertion portion of the female connector housing.

  In the printed circuit board connection socket, for example, as shown in Patent Document 3, a first contactor having an upper pressure contact part for removing glass dust and oxide film attached to the surface of the electrode pad, and A clamping socket having a plurality of second contacts has been proposed. The first contact and the second contact are accommodated in respective contact accommodating grooves formed in the socket body so as to face the both surfaces of the end portion of the printed circuit board inserted into the socket body receptacle, respectively. Yes. The first contactor and the second contactor are integrally formed via an upper contact holding piece having an upper pressing contact portion at the lower end of the spreading piece, and an upper contact holding piece and a connecting portion, respectively. And a lower contact clamping piece having a portion at the lower end of the spreading piece. The upper pressure contact part and the lower pressure contact part in the first contactor and the second contactor are spaced apart with a predetermined interval. Thereby, when the edge part of a printed circuit board is inserted between the upper pressurization contact parts of the upper contact clamping piece in each 1st contactor and a 2nd contactor, the upper pressurization contact part of an upper contact sandwiching piece Are further separated from each other against its elastic force. Further, when the end portion of the printed circuit board is inserted between the lower pressure contact portions of the lower contact holding pieces in the first contact and the second contact, the lower pressure contact portions of the lower contact holding pieces are also provided. Further, they are separated from each other against the elastic force.

  In such a configuration, the end portions of the printed circuit board are connected to each other between the upper pressure contact portions of the upper contact holding pieces and the lower contact holding portions of the first contact pieces and the second contact pieces through the socket body socket. When inserted between the lower pressure contact portions of the pieces, the electrodes on both sides of the end portion of the printed circuit board slidably contacted by the pair of upper pressure contact portions disposed near the socket body socket. Foreign matter such as dust adhering to the surface of the pad is removed. Then, the surfaces of the cleaned electrode pads on both sides of the end portion of the printed circuit board inserted further downward are brought into contact with the pair of lower pressure contact portions.

JP2012-140079 JP2013-93128A Japanese Patent No. 3117439

  When the upper and lower contact protrusions for removing foreign matter adhering to the surface of the tab portion of the male terminal fitting are integrally provided in the terminal insertion portion of the female connector housing as shown in Patent Document 2, When the connector and the female connector are repeatedly inserted and removed, the contact protrusions wear due to repeated sliding contact of the tab portion of the male terminal fitting with the contact protrusions, so that foreign matters may not be gradually gradually removed. is there. Further, when the tab portion of the male terminal fitting is inserted obliquely with respect to the terminal insertion portion of the female connector housing, there is a possibility that only the foreign matter attached to one surface of the tab portion of the male terminal fitting is removed.

  In consideration of the above problems, the present invention is a power supply connector device comprising a plug and a receptacle, and is attached to the connection terminal without being affected by the posture of the connection terminal of the plug to be inserted or removed with respect to the fixed terminal in the receptacle. An object of the present invention is to provide a power supply connector device that can reliably remove the foreign matter and has a plug and a receptacle excellent in durability.

  In order to achieve the above object, a power supply connector device according to the present invention has a plug having a metal male contact terminal and a metal female contact terminal, and the plug is detachably connected. The female contact terminals are opened and closed in accordance with the insertion and removal of the male contact terminals of the plugs with respect to the female contact terminals, and the squeegee portions for wiping off foreign matters attached to the male contact terminals are respectively bent portions. And a main contact terminal connected to the male contact terminal.

  Further, the end portions of the squeegee portion may be in contact with each other while being displaced from each other in the attaching / detaching direction of the male contact terminal of the plug. The contact portion of the contact terminal may be biased in a direction intersecting with the direction of attaching / detaching the male contact terminal of the plug.

  When the plug is connected to the receptacle, the male contact terminal may be electrically connected to the pair of cleaning terminals and the main contact terminal. The plug and receptacle may further comprise a lock / unlock mechanism. The connection end portion of the plug may be inserted into the connection port portion of the receptacle along a predetermined rotation trajectory. The fixed end portions of the pair of cleaning terminals and the fixed end portion of the main contact terminal may be in contact with each other.

  According to the power supply connector device of the present invention, the metal female contact terminal opens and closes in response to insertion / extraction of the male contact terminal of the plug with respect to the female contact terminal, and wipes the foreign matter attached to the male contact terminal. A receptacle for a plug connecting terminal to be inserted and removed because it includes a pair of cleaning terminals each having a squeegee portion at the end of the bent portion and a main contact terminal connected to the male contact terminal. The foreign matter adhering to the connection terminal can be surely removed without being influenced by the posture with respect to the fixed terminal, and the durability is excellent.

(A) is the perspective view which looked at the receptacle which comprises a part of example of the connector apparatus for power supply which concerns on this invention from the front, (B) is an example of the connector apparatus for power supply which concerns on this invention It is the perspective view which looked at the receptacle which comprises a part from the back surface. (A) is a side view of the receptacle shown in FIG. 1, (B) is a sectional view taken along line IIB-IIB in FIG. 2 (A), and (C) is shown in FIG. It is a perspective view of the main contact terminal used for the receptacle shown. FIG. 9 is a partial cross-sectional view showing a modification of the support structure for the fixed end of the cleaning terminal and the main contact terminal in the female contact terminal used in the receptacle shown in FIG. 1. (A) is the perspective view which looked at the plug which comprises some examples of the connector apparatus for electric power supply which concerns on this invention from the front, (B) is an example of the connector apparatus for electric power supply which concerns on this invention It is the perspective view which looked at the plug which comprises a part from the back, (C) is a perspective view containing the partial cross section shown along the IVC-IVC line | wire in FIG. 4 (A). (A) is a figure used for description of the receptacle attachment / detachment operation shown in FIG. 1 and the plug shown in FIG. 4, and (B) is along the VB-VB line in FIG. 5 (A). FIG. (A) is a figure used for description of the operation of attaching and detaching the receptacle shown in FIG. 1 and the plug shown in FIG. 4, and (B) is a VIB-VIB line in FIG. 6 (A). It is sectional drawing shown along. (A) is a perspective view which shows another example of the connector apparatus for electric power supply which concerns on this invention, (B) is sectional drawing shown along the VII-VII line in FIG. 7 (A). (A), (B), and (C) are sectional views each used for explanation of an attaching / detaching operation in still another example of the power supply connector device according to the present invention.

  FIGS. 5A and 5B show an example of a plug and a receptacle constituting the power supply connector device according to the present invention, respectively. Although not shown, the plug 40 is fixed to, for example, a connection end of a cable connected to a battery. Although not shown, the receptacle 10 is fixed to, for example, a charger and a drive unit of the vehicle body. Thus, the battery is selectively electrically connected to the charger or the drive unit of the vehicle body via the plug 40 and the receptacle 10.

  As shown in FIGS. 4A and 4B, the plug 40 is integrally formed of, for example, a resin material, and includes a connection end 40B and a fixing portion 40A. The fixed portion 40A has a pair of left and right flange portions 40AF projecting from the end of the connection end portion 40B along the Y coordinate axis in the orthogonal coordinates shown in FIG. The flange portion 40AF has a hole 40a into which a mounting screw is inserted. The diameter of the hole 40a of the flange portion 40AF and the hole 10a of the flange portion 10AF of the receptacle 10 to be described later is such that the plug 40 and the plug 40, when the receptacle 10 is attached to a connection end of a cable, a charger, or the like, And the dimension which can adjust the relative position with respect to the receptacle 10 of the plug 40 is set so that the receptacle 10 may be easily connected mutually.

  The Y coordinate axis is set parallel to the arrangement direction of male contact terminals 42Ci (i = 1 to 7) as connection terminals described later. The X coordinate axis is set parallel to the direction in which the plug 40 is attached and detached.

  As shown in FIG. 4B, a terminal support portion 40E that supports the fixed end portion 42B of the male contact terminal 42Ci is integrally formed in the center portion of the end surface of the fixed portion 40A that is the back surface portion of the plug 40. Is formed. The terminal support portion 40E extends along the arrangement direction of the male contact terminals 42Ci. At both ends of the terminal support portion 40E, there are a terminal support wall 40RD and a terminal support wall 40LD for supporting the one end surface and the lowermost end surface of the fixed end portion 42B of the male contact terminal 42Ci for power lines located at both ends, respectively. Is formed. A partition wall 40EPi (i = 1 to 4) is formed between the terminal support wall 40RD and the terminal support wall 40LD with a predetermined interval. In the space between the partition wall 40EPi and the terminal support wall 40RD, between the partition wall 40EPi and the terminal support wall 40LD, and between the partition walls 40EPi, fixed ends of the male contact terminals 42Ci for signal lines are respectively provided. The part 42B is arranged.

  The connection end 40B of the plug 40 is detachably inserted into a connection port 10B (see FIG. 5B) as a connected end of the receptacle 10 described later.

  The connection end 40B has a recess 40Ba in which a plurality of male contacts 42Ci are disposed inside the outer shell. The recess 40Ba is surrounded and formed by a pair of side walls facing each other and a pair of connecting walls that are orthogonal to the pair of side walls and connect the side walls. The pair of side walls and the connecting wall are each inserted into a gap 10D of a connection port portion 10B described later. As shown in FIG. 5B, the periphery of one end of the recess 40Ba is open.

  The male contact terminal 42Ci is press-fitted into a groove of a terminal support portion formed in the connection end portion 40B. As shown in an enlarged view in FIG. 4C, the male contact terminal 42Ci is formed of a sheet metal material by pressing. When the plug 40 is connected to the receptacle 10, the male contact terminal 42Ci has a contact end portion 42C sandwiched between the main contact terminals 26 and 28 of the female contact terminal 14ai of the receptacle 10 and a fixed end portion having a tab 42A. 42B. The band-shaped contact end portion 42C protrudes into the recess 40Ba. The boundary portion between the contact end portion 42C and the fixed end portion 42B is supported by the terminal support portion of the back wall portion 40BA2 that forms the back surface portion of the recess 40Ba in the connection end portion 40B.

  The fixed end 42B has a hole 42b at the center and a tab 42A having a hole 42a smaller than the hole 42b at the upper end. The tab 42A protrudes upward along the Z coordinate axis in the orthogonal coordinates shown in FIG. A flat connection terminal (faston terminal) (not shown) is connected to the tab 42A.

  As shown in FIGS. 1A and 1B, the receptacle 10 is integrally formed of, for example, a resin material, and includes a connection port portion 10B and a fixing portion 10A. The fixed portion 10A has a pair of left and right flange portions 10AF protruding from the end of the connection port portion 10B along the Y coordinate axis in the orthogonal coordinates shown in FIG. The flange portion 10AF has a hole 10a into which a mounting screw is inserted.

  The Y coordinate axis is set parallel to the arrangement direction of the female contact terminals 14ai (i = 1 to 7) as fixed terminals. The X coordinate axis is set parallel to the direction in which the plug 40 is attached and detached.

  Further, as shown in FIG. 1B, a terminal support portion 10E that supports the fixed end portion 20 of the female contact terminal 14ai is integrally formed at the center portion of the end portion of the fixed portion 10A that is the back surface portion of the receptacle 10. Is formed. The terminal support portion 10E extends along the arrangement direction of the female contact terminals 14ai. At both ends of the terminal support portion 10E, a terminal support wall 10RD and a terminal support wall 10LD for supporting the plate terminals 12 that perform eyelet connection (for power supply) are formed. The plate terminal 12 has a hole 12S in the center. A nut (not shown) is provided at a position directly below the plate terminal 12. Between the terminal support wall 10RD and the terminal support wall 10LD, connection walls 10RE and 10LE and a partition wall 10EPi (i = 1 to 4) are formed with a predetermined interval.

  In the spaces between the connecting wall 10RE and the partition wall 10EPi, between the connecting wall 10LE and the partition wall 10EPi, and between the partition walls 10EPi, the fixed end portions 20 of the male contact terminals 14ai for signal lines are respectively provided. Is arranged. As shown in FIGS. 6A and 6B, the connection end portion 40B of the plug 40 is detachably inserted into the connection port portion 10B.

  In the connection port portion 10B, a frame-shaped guide wall 10C for guiding the connection end portion 40B of the plug 40 to be inserted is formed inside the outer portion. A gap 10D is formed between the inner peripheral surface of the connection port 10B and the outer peripheral surface of the guide wall 10C. In the gap 10D, the pair of side walls and the edges of the pair of connecting walls that form the recess 40Ba of the connection end 40B of the plug 40 described above are inserted. Furthermore, female contact terminals 14ai are arranged at a predetermined interval inside the guide wall 10C.

  A cover member 16 is fixed to the periphery of the opening end of the guide wall 10C at the opening end of the guide wall 10C by a small screw BS1. By this cover member 16, there is no possibility that the female contact terminal 14ai in the guide wall 10C is accidentally contacted via the opening end of the connection port 10B.

  The cover member 16 is formed of, for example, a resin material and has a plurality of long and short slots 16Ki (i = 1 to 7) corresponding to the female contact terminals 14ai. When the plug 40 is connected to the receptacle 10, the relatively short slot 16Ki of the plurality of slots 16Ki through which the contact end portion 42Ci of the male contact terminal 42Ci passes is parallel to each other at a predetermined interval in the center of the cover member 16 Five are formed in the part. On both sides of the array of relatively short slots 16Ki, adjacent longer slots 16Ki are formed in parallel with a predetermined interval. The slots 16Ki in the cover member 16 are partitioned by partition walls 16Pi (i = 1 to 6) that partition adjacent contact terminal accommodating portions 10CC. On the back side of the partition wall 16Pi of the cover member 16, partition walls are provided in parallel with each other at a predetermined interval. Between the partition walls, distal end portions of cleaning terminals 22 and 24 described later are arranged.

  As shown in FIG. 2 (B), the female contact terminal 14ai has a pair of pins that cooperatively clamp the contact end portion 42C of the male contact 42Ci of the plug 40 when the plug 40 is connected to the receptacle 10. Main contact terminals 26 and 28, cleaning terminals 22 and 24 disposed so as to surround a pair of main contact terminals 26 and 28 on the inside, and fixed ends formed at end portions of the main contact terminals 26 and 28 And the unit 20 as main elements.

  As shown in FIG. 2 (C), the fixed end portion 20 of the main contact terminal 26 has a tab 20t, and the contact holding portion inserted into the opening 10ai (see FIG. 1 (B)) of the fixed portion 10A. 18 is fixed. The fixed end portion 20 of the main contact terminal 26 extends from the connecting portion of the branch movable terminals 26a, 26b, and 26c of the main contact terminal 26 toward the terminal support portion 10E along the X coordinate axis.

  Each of the bent portions of the branch movable terminals 26a, 26b, and 26c of the main contact terminal 26 having elasticity has a contact portion 26E. The tip of the bent portion is bent so as to be closer to the cleaning terminal 24 than the contact portion 26E. The fixed end portion 20 of the main contact 28 disposed so as to face the main contact terminal 26 has a tab, is overlapped with the fixed end portion 20 of the main contact terminal 26, and is fixed to the contact holding portion 18. The bent portions at the distal ends of the branch movable terminals 28a, 28b, 28c of the main contact terminal 28 having elasticity have a contact portion 28E. The tip of the bent portion is bent so as to be closer to the cleaning terminal 22 than the contact portion 28E.

  Therefore, the distal end of the bent portion of the main contact terminal 28 is formed so as to be further away from the distal end than the contact portion 26E of the main contact terminal 26.

  In FIG. 2B, the cleaning terminal 22 in the female contact terminal 14ai located at the right end includes a movable terminal 22 including three branch movable terminals 22a, 22b, and 22c, and a fixed end connected to the movable terminal 22. Composed. Each of the branch movable terminals 22a, 22b, and 22c has a bent portion 22E at the tip. The bent portion 22E is bent toward the cleaning terminal 24 so as to surround the bent portion at the distal end portion of the main contact terminal 28 while being close to each other. A contact portion 22EP as a squeegee portion is formed near the tip of the bent portion 22E.

  The fixed end of the cleaning terminal 22 is fixed to a partition wall 10Pi formed inside the guide wall 10C.

  The cleaning terminal 24 facing the cleaning terminal 22 includes a movable terminal 24 including three branch movable terminals 24 a, 24 b and 24 c, and a fixed end connected to the movable terminal 24. Each of the branch movable terminals 24a, 24b, and 24c has a bent portion 24E at the tip. The bent portion 24E is bent toward the cleaning terminal 22 so as to surround the bent portion at the distal end portion of the main contact terminal 26 while being close to each other. A contact portion 24EP as a squeegee portion is formed near the tip of the bent portion 24E. The abutting portion 24EP is abutted between the abutting portion 22EP and the bent portion 22E by a predetermined amount along the direction of the cover member 16, that is, the attaching / detaching direction of the plug 40 with respect to the abutting portion 22EP. Yes. The amount of deviation is set so that no gap is generated between the contact portion 24EP and the contact portion 22EP.

  Further, the position where the contact portion 24EP contacts between the contact portion 22EP and the bent portion 22E is the plug 40 with respect to the position of the contact portion 26E of the main contact terminal 26 and the contact portion 28E of the main contact terminal 28 described above. It is biased by a predetermined amount in the direction crossing the attaching / detaching direction.

  As a result, since the contact portion 24EP is in contact with the portion between the contact portion 22EP and the bent portion 22E, dust or the like passes through the contact portion 24EP and the contact portion 22EP to the main contact terminal 26 or the like. Intrusion towards is avoided. Further, since the contact portion 24EP is displaced by a predetermined amount from the contact portion 22EP, there is an effect of reducing the insertion / extraction force of the plug 40.

  The fixed end of the cleaning terminal 24 is fixed to the inner peripheral portion 10Ca of the guide wall 10C.

  The fixed end portion of the cleaning terminal 22 in the female contact terminal 14ai located at the left end is fixed to the inner peripheral portion of the guide wall 10C, and the fixed end portion of the cleaning terminal 24 is fixed to the partition wall 10Pi. Yes. Further, the fixed end of the cleaning terminal 22 and the fixed end of the cleaning terminal 24 located at the center in the guide wall 10C are fixed to the partition wall 10Pi, respectively.

  In such a configuration, as shown in FIGS. 5A and 5B, when the plug 40 is connected to the receptacle 10, the connection end 40 </ b> B of the plug 40 is disposed to face the connection port 10 </ b> B of the receptacle 10. The At that time, the edge of the opening end of the connection end 40B faces the gap 10D of the receptacle 10.

  Next, as shown in FIGS. 6A and 6B, the connection end 40 </ b> B of the plug 40 is inserted into the connection port 10 </ b> B of the receptacle 10. At that time, the edge of the opening end portion of the connection end portion 40B is inserted into the gap 10D of the receptacle 10, and the contact portion of the cleaning terminal 22 is contacted by the tip of the contact end portion 42C of the male contact terminal 42Ci of the plug 40. The contact end portion 42C is allowed to pass between the contact portions in a state where the 22EP and the contact portion 24EP in the cleaning terminal 24 are spread apart in a direction away from each other against the elastic force. As a result, when foreign matter has adhered to the contact end portion 42C, the contact end portion 42C of the male contact terminal 42Ci is slidably contacted with the contact portion 24EP and then slidably contacted with the contact portion 22EP. The contact portion 22EP and the contact portion 24EP are removed.

  Subsequently, when the tip of the contact end portion 42C of the male contact terminal 42Ci in the plug 40 is further inserted, the plug 40 is inserted and clamped between the contact portion 26E and the contact portion 28E of the main contact terminals 26 and 28. At that time, the contact portion 26E is brought into contact with one surface of the contact end portion 42C, and the contact portion 28E is brought into contact with the other surface of the contact end portion 42C. Thereby, the electrical connection between the plug 40 and the receptacle 10 is completed.

  On the other hand, when the plug 40 is removed from the receptacle 10, the contact end of the male contact terminal 42Ci in the plug 40 is such that the plug 40 and the receptacle 10 are separated from each other from the state shown in FIGS. The part 42C is pulled out from between the contact part 26E and the contact part 28E of the main contact terminals 26 and 28.

  In the above-described example, the female contact terminal 14ai has the main contact terminals 26 and 28 and the cleaning terminals 22 and 24 formed as separate bodies, and each base end side is fixed to a part of the guide wall 10C. Although they are electrically connected to each other by a conduction plate (not shown), the present invention is not limited to such an example. For example, as shown in an enlarged view in FIG. 3, the fixed end 241 of the cleaning terminal 24 has a main contact. The terminal 26 is overlaid on the base 261 of the movable terminal and fixed to the contact holder 18. Similarly, the fixed end portion 221 of the cleaning terminal 22 is overlapped with the base portion 281 of the movable terminal of the main contact terminal 28 and fixed to the contact holding portion 18. In FIG. 3, the same components as those in FIG. 2B are denoted by the same reference numerals, and redundant description thereof is omitted.

  According to this, since each fixed end portion and the base portions are fixed to be adjacent to each other, electrical conduction can be obtained more easily, and a large current specification receptacle can also be handled.

  FIGS. 7A and 7B show another example of the power supply connector device according to the present invention.

  7A and 7B show a state in which the end of the connection end 40′B of the plug 40 ′ is inserted into the connection port 30B of the receptacle 30 with a predetermined rotation locus. 7A and 7B, the same components as those in the example shown in FIG. 2B are denoted by the same reference numerals, and redundant description thereof is omitted.

  The plug 40 ′ is fixed to, for example, a connection end of a cable connected to a battery (not shown), and the receptacle 30 is connected to, for example, a charger (not shown) and a drive unit of the vehicle body. Fixed. Thus, the battery is selectively electrically connected to the charger or the drive unit of the vehicle body via the plug 40 ′ and the receptacle 30.

  For example, the plug 40 ′ is integrally formed of a resin material and includes a connection end portion 40 ′ B and a fixing portion 40 ′ A. The fixing portion 40′A has a pair of flange portions that protrude from the end of the connection end portion 40′B along the Y coordinate axis in the orthogonal coordinates shown in FIG. The flange portion has a hole 40'a into which a mounting screw is inserted.

  The Y coordinate axis is set in parallel to the arrangement direction of male contact terminals 42′Ci (i = 1 to 6) as connection terminals described later. The X coordinate axis is set parallel to the direction in which the plug 40 'is attached and detached.

  The connection end 40′B of the plug 40 ′ is detachably inserted into a connection port 30B as a connected end in the receptacle 30 described later along a turning trajectory TR having a predetermined rotation radius Ra. The center position Co of the rotation radius Ra is located at a position separated from the center axis CL by the rotation radius Ra on a straight line that passes through the center axis CL of the female contact terminal 14ai and the vicinity of the contact point and intersects perpendicularly.

  The connection end 40′B has a recess 40′Ba in which a plurality of male contacts 42′Ci are arranged inside the outer shell.

  The male contact terminal 42'Ci is integrally formed with the resin connection end 40'B by insert molding. The male contact terminal 42'Ci is formed of a thin metal material by pressing. When the plug 40 ′ is connected to the receptacle 30, the male contact terminal 42 ′ Ci includes a tabular contact end portion 42 ′ C sandwiched between a pair of female contact terminals (not shown) of the receptacle 30 and a tab. And a fixed end 42'B having 42'A.

  The tab 42'A of the fixed end 42'B connected to the contact end 42'C penetrates the fixed portion 40'A and projects outward. The tab 42'A extends along the X coordinate axis in the orthogonal coordinates. A flat connection terminal (faston terminal) (not shown) is connected to the tab 42'A.

  The receptacle 30 is integrally formed of a resin material, for example, and includes a connection port portion 30B and a fixing portion 30A.

  The Y coordinate axis is set parallel to the arrangement direction of the female contact terminals 14ai (i = 1 to 12). The X coordinate axis is set parallel to the direction in which the plug 40 'is attached and detached.

  The connection end portion 40'B of the plug 40 'is detachably inserted into the connection port portion 30B with the above-mentioned predetermined rotation locus. Accordingly, even if the relative position between the connection end 40′B of the plug 40 ′ and the connection port 30B of the receptacle 30 does not face each other, the connection end 40′B of the plug 40 ′ is inclined. Thus, it can be inserted into the connection port 30B of the receptacle 30.

  The connection port portion 30B is formed with a frame-shaped guide wall 30C for guiding the connection end portion 40'B of the plug 40 'to be inserted inside the outer shell portion. A predetermined gap 30R is formed between the inner peripheral surface of the connection port 30B and the outer peripheral surface of the guide wall 30C. An edge that forms the recess 40′Ba of the connection end 40′B of the plug 40 ′ is inserted into the gap 30R. Furthermore, female contact terminals 14ai are arranged at predetermined intervals along the Y coordinate axis inside the guide wall 30C. Adjacent female contact terminals 14ai are partitioned by a partition wall.

  8A, 8B, and 8C show still another example of the power supply connector device according to the present invention.

  For example, the plug 50 is fixed to a connection end portion of a cable connected to a battery (not shown), and the receptacle 60 is connected to, for example, a charger (not shown) and a drive unit of the vehicle body, respectively. Fixed. Thus, the battery is selectively electrically connected to the charger or the drive unit of the vehicle body via the plug 50 and the receptacle 60.

  The plug 50 is integrally formed of, for example, a resin material, and includes a connection end portion 50B and a lock / unlock mechanism fixing portion 50A. The lock / unlock mechanism fixing portion 50A has a pair of lock / unlock mechanism portions projecting from the end of the connection end portion 50B along the Y coordinate axis in orthogonal coordinates on both sides of a contact housing portion 50D described later. .

  The Y coordinate axis is set in parallel to the arrangement direction of male contact terminals 42′Ci (i = 1 to 6) as connection terminals described later. The X coordinate axis is set parallel to the direction in which the plug 50 is attached and detached.

  In addition, a contact housing portion 50D for housing the fixed end portion 42′B of the male contact terminal 42′Ci is formed at the center of the end surface of the lock / unlock mechanism fixing portion 50A that is the back surface portion of the plug 50. .

  The connecting end 50B of the plug 50 is detachably inserted into a connecting port 60B as a connected end in a receptacle 60 described later.

  The connection end portion 50B has a recess 50Ba in which contact end portions 42′C of a plurality of male contacts 42′Ci are arranged inside the outer shell portion.

  The male contact terminal 42'Ci is formed integrally with the connection end 50B by insert molding. The male contact terminal 42Ci is formed by press working with a thin metal material. When the plug 50 is connected to the receptacle 60, the male contact terminal 42′Ci includes a contact end portion 42′C that is sandwiched between a pair of main contacts of the female contact terminal 62ai of the receptacle 60, and a contact end portion 42 ′. It is composed of a fixed end portion 42'B connected to C.

  One lock / unlock mechanism includes a lock lever 52, a coil spring 56 that urges the lock lever 52 in a locked state, and a lock end 60RK, which will be described later, as main elements. Yes. The other lock / unlock mechanism includes a lock lever 54, a coil spring 58 that urges the lock lever 54 in a locked state, and a lock end 60LK, which will be described later, as main elements. .

  The lock lever 52 includes an operation part 52P and a claw part 52N connected to the operation part 52P. The operation portion 52P has grooves 52Ga and 52Gb that are engaged with a pair of guide pieces 54Ka and 54P formed in the lock / unlock mechanism fixing portion 50A. A recess 52R is formed adjacent to the top of the slope portion between the claw portion 52N having the slope portion and the operation portion 52P. When the lock lever 52 is in the locked state, one locking end 60RK of a receptacle 60 described later is engaged with the periphery of the recess 52R. A coil spring (compression coil spring) 56 is disposed between the pair of guide pieces 54Ka and 54P. One end of the coil spring 56 is connected to the operation portion 52P, and the other end of the coil spring 56 is connected to a portion between the pair of guide pieces 54Ka and 54P in the lock / unlock mechanism fixing portion 50A.

  The lock lever 54 includes an operation part 54P and a claw part 54N connected to the operation part 54P. The operation portion 54P has grooves 54Ga and 54Gb that are engaged with a pair of guide pieces formed in the lock / unlock mechanism fixing portion 50A. A recess 54R is formed adjacent to the top of the slope portion between the claw portion 54N having the slope portion and the operation portion 54P. When the lock lever 54 is in the locked state, the other locking end 60LK of the receptacle 60 described later is engaged with the recess 54R. A coil spring 58 is disposed between the pair of guide pieces. One end of the coil spring 58 is connected to the operation portion 54P, and the other end of the coil spring 58 is connected to a portion between the pair of guide pieces in the lock / unlock mechanism fixing portion 50A.

  The pair of guide pieces 54Ka and 54P are formed integrally with the lock / unlock mechanism fixing portion 50A at a predetermined interval.

  The receptacle 60 is integrally formed of a resin material, for example, and includes a connection port portion 60B and a fixing portion 60A. The fixed portion 60A has a pair of flange portions protruding from the end of the connection port portion 60B along the Y coordinate axis in the orthogonal coordinates shown in FIG.

  The Y coordinate axis is set parallel to the arrangement direction of the female contact terminals 62ai (i = 1 to 6). The X coordinate axis is set parallel to the direction in which the plug 50 is attached and detached.

  In addition, a terminal support portion 60E that supports the fixed end portion of the female contact terminal 62ai is integrally formed at the center portion of the end surface of the fixed portion 60A of the receptacle 60. The terminal support 60E extends along the arrangement direction of the female contact terminals 62ai. A partition wall is formed in the terminal support portion 60E with a predetermined interval that partitions the fixed end portion of the adjacent female contact terminal 62ai.

  As shown in FIGS. 8B and 8C, the connection end 60B of the plug 50 is detachably inserted into the connection port 60B.

  A frame-shaped guide wall 60C that guides the connection end 50B of the plug 50 to be inserted is formed inside the outer portion of the connection port 60B. An annular gap 60RR is formed between the entire inner peripheral surface of the connection port portion 60B and the entire outer peripheral surface of the guide wall 60C. An edge forming the recess 50Ba of the connection end 50B of the plug 50 is inserted into the gap 60RR. Further, female contact terminals 62ai are arranged at a predetermined interval inside the guide wall 60C.

  When the plug 50 is connected to the receptacle 60, the female contact terminal 62ai includes a pair of main contact terminals that cooperatively sandwich the contact end portion 42'C of the male contact 42'Ci of the plug 50. Has been.

  When the plug 50 is connected to the receptacle 60 at a position adjacent to the connection port portion 60B in the outer portion of the receptacle 60, a recess into which the claw portion 52N of the lock lever 52 and the claw portion 54N of the lock lever 54 are inserted. A 60RD and a recess 60LD are formed inside. The opening ends of the recess 60RD and the recess 60LD are opened outward so that the claw 52N of the lock lever 52 and the claw 54N of the lock lever 54 pass through. On the periphery of the opening end of the recess 60RD and the recess 60LD, a recess 52R of the lock lever 52 and 54R of the lock lever 54 are respectively locked end portions 60RK and 60LK as locked portions to be locked. Is formed. Note that the locking end portions 60RK and 60LK may be formed integrally with the receptacle 60, or may be formed on, for example, a charger housing or a vehicle body to which the receptacle 60 is fixed.

  In such a configuration, when the plug 50 is connected to the receptacle 60, the connection end 50B of the plug 50 is disposed opposite to the connection port 60B of the receptacle 60 as shown in FIG. 8A. At that time, the edge of the opening end of the connection end 50B faces the gap 66RR of the receptacle 60.

  Next, as shown in FIG. 8B, the end of the connection end 50 </ b> B of the plug 50 is inserted into the connection port 60 </ b> B of the receptacle 60. At that time, the edge of the opening end of the connection end 50B is inserted into the gap 60RR of the receptacle 60, and the tip of the contact end 42′C of the male contact terminal 42′Ci in the plug 50 is the female contact terminal. The pair of main contact terminals at 62ai are arranged to face each other between the contact portions. Further, the claw portion 52N of the lock lever 52 and the claw portion 54N of the lock lever 54 are pushed into the opening ends of the recess 60RD and the recess 60LD, respectively, against the elastic force of the coil springs 56 and 58.

  Subsequently, as shown in FIG. 8C, the tip of the contact end portion 42′C of the male contact terminal 42′Ci in the plug 50 is connected to the contact portion of the pair of main contact terminals in the female contact terminal 62ai. Further, the edge of the opening end of the connection end 50B is inserted into the gap 60RR of the receptacle 60.

  At that time, the contact portion of one main contact terminal is brought into contact with one surface of the contact end portion 42′C, and the contact portion of the other main contact terminal is brought into contact with the other surface of the contact end portion 42′C. The Thereby, the electrical connection between the plug 50 and the receptacle 60 is completed. Further, the recess 52R of the lock lever 52 and the peripheral edge of the recess 54R of the lock lever 54 are engaged with the lock end portions 60RK and 60LK, respectively. Thereby, the lock lever 52 and the lock lever 54 are locked. Therefore, an undesirable situation where the plug 50 is accidentally detached from the receptacle 60 is avoided.

  On the other hand, when the plug 50 is removed from the receptacle 60, the operation portion 52P of the lock lever 52 and the operation portion 54P of the lock lever 54 are pressed in the direction indicated by the arrow F against the elastic force of the coil springs 56 and 58, respectively. As a result, the plug 50 is removed from the receptacle 60 in a state where the periphery of the recess 52R of the lock lever 52 and the periphery of the recess 54R of the lock lever 54 are separated from the locking ends 60RK and 60LK (unlocked state), respectively. Pulled out.

  Therefore, by placing the cleaning terminal on the inlet side of the male terminal, scraping off the dirt adhering to the male terminal with the cleaning terminal, and then fitting the male terminal with the female terminal (main contact terminal) Can be connected in a stable state, always electrically and mechanically. Furthermore, not only the plug connection terminals but also the main contact terminals of the receptacles are less likely to be contaminated. 2． By using a metal terminal as the cleaning terminal, the cleaning terminal is not worn even when the insertion and removal are performed many times, and can be connected in a stable state. 3. By connecting the cleaning terminal and female terminal, a large current can flow stably, and the connector can be downsized. 4. By making the connecting terminal of the plug into a two-sided insert, deformation of the connecting terminal can be prevented.

  In the example shown in FIGS. 5A and 5B described above, the lock / unlock mechanism in the example shown in FIG. 8A may be further provided. 5A and 5B, as in the example shown in FIGS. 7A and 7B, the end of the connection end 40B of the plug 40 is the connection port of the receptacle 10. You may comprise so that it may be inserted in the part 10B with a predetermined | prescribed rotation locus | trajectory.

  Moreover, in the above-mentioned example, the cross-sectional shape of the end part of the connection end part 40B of the plug 40 and the connection port part 10B of the receptacle 10 is not limited to such an example. It may have a cross-sectional shape.

10, 30, 60 Receptacles 10B, 30B, 60B Connection ports 14ai, 14'ai Female contact terminals 16 Cover members 22, 24 Cleaning terminals 22E, 24E Bending portions 26, 28 Main contact terminals 40, 40 ', 50 Plug 40B Connection end 42Ci, 42'Ci Male contact terminal 52, 54 Lock lever 56, 58 Coil spring

Claims (7)

A plug having a male contact terminal made of metal;
A receptacle having a metal female contact terminal, to which the plug is detachably connected,
The female contact terminals open and close according to insertion / extraction of the male contact terminal of the plug with respect to the female contact terminal, and squeegee portions for wiping off foreign matters adhering to the male contact terminal, respectively. A power supply connector device comprising: a pair of cleaning terminals in the section; and a main contact terminal connected to the male contact terminal.   2. The power supply connector device according to claim 1, wherein the end portions of the squeegee portions are in contact with each other in a state of being displaced from each other in the attaching / detaching direction of the male contact terminal of the plug.   The position where the end portions of the squeegee portion are in contact with each other is biased with respect to the contact portion of the main contact terminal in a direction crossing the attaching / detaching direction of the male contact terminal of the plug. The connector device for power supply as described.   The male contact terminal is electrically connected to the pair of cleaning terminals and the main contact terminal when the plug is connected to the receptacle. The power supply connector device according to any one of the above.   The power supply connector device according to claim 1, wherein the plug and the receptacle further include a lock / unlock mechanism.   The power supply connector device according to claim 1, wherein the connection end portion of the plug is inserted into the connection port portion of the receptacle along a predetermined rotation trajectory.   The power supply connector device according to claim 1, wherein the fixed end portions of the pair of cleaning terminals and the fixed end portions of the main contact terminals are in contact with each other.

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