JP2013149357A - Press contact type connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a press contact type connector which has high strength against external force acting in a direction different from a slide direction acting on a movable contact, and facilitates processing of the movable contact.SOLUTION: In a press contact type connector 1 including an insulation housing 2 having a contact housing part 11, a movable contact 3 housed inside the contact housing part 11 slidably in front and back directions, and an extrusion spring 22 housed inside the contact housing part 11 for energizing the movable contact 3 in a direction of projecting from a front end face, the movable contact 3 includes a pair of parallel piece parts 16 and 17 facing each other and a contact piece part 18 connecting front edges of both parallel piece parts 16 and 17 by punching and folding a conductive metal plate material, and integrally has a reinforcing piece part 20 arranged between both parallel piece parts 16 and 17, and the reinforcing piece part 20 is formed in a direction between both parallel piece parts 16 and 17 so as to support inner side faces of the parallel piece parts 16 and 17 by side edges.

Description

  The present invention relates to a pressure contact type connector mainly used as a connector for battery connection in a small electronic device such as a cellular phone.

  Conventionally, for connection between a small electronic device body such as a cellular phone and a power source battery, there is a pressure contact type connector having a movable contact that is urged by a pushing spring such as a coil spring and protrudes so as to be pushed in from the front end of the insulating housing. It is used.

  This type of pressure contact type connector is housed in an insulating housing having a contact accommodating portion opened to the front end side, a movable contact accommodated in the contact accommodating portion so as to be slidable in the front-rear direction, and accommodated in the contact accommodating portion. And a pushing spring that urges the movable contact in a direction protruding from the front end surface by applying a reaction force to the closing member that closes the rear end of the contact accommodating portion, and is always in elastic contact with the movable contact. Board connection terminals connected to the connection board.

  Conventional movable contacts used in this pressure contact type connector have been widely used in the form of pins formed by various machining and drawing of lathes, milling machines, and presses. In consideration of the above, a movable contact has been developed in which a conductive metal plate material having elasticity is punched and manufactured by bending (for example, Patent Document 1).

  The movable contact includes a pair of parallel pieces facing in the front-rear direction facing each other, and a contact piece connecting the front edge portions of the parallel pieces, and has a space between the parallel pieces. It is formed in a U-shape or the like in a side view.

JP2011-238634A

  However, in the conventional technology as described above, an external force is applied to the movable contact in a direction different from the sliding direction when a battery for power supply is attached to or detached from the pressure contact type connector or when product performance is measured. As a result, the movable contact may be deformed.

  In addition, some of these pressure contact type connectors have a very small size of a movable contact having a length of 1 to 2 mm and a width of 1 mm or less. In order to bend such a small movable contact Sometimes it was difficult.

  Therefore, in view of such a conventional problem, the present invention has a high strength against an external force acting in a direction different from the sliding direction acting on the movable contact, and the pressure contact is easy to process the movable contact. The purpose is to provide a mold connector.

  The feature of the invention described in claim 1 for solving the conventional problems as described above and achieving an intended object is that a housing having a contact receiving portion opened at a front end, and a front and rear in the contact receiving portion. In the pressure contact type connector comprising: a movable contact that is slidably accommodated in a direction; and a push spring that is accommodated in the contact accommodating portion and urges the movable contact in a direction protruding from the front end surface. The movable contact is formed by punching / bending a conductive metal plate material, and a pair of parallel pieces facing in the front-rear direction facing each other, and a contact piece connecting the front edges of the parallel pieces. And a reinforcing piece disposed integrally between the two parallel pieces, the reinforcing pieces being in the direction between the parallel pieces so as to support the inner surface of the parallel pieces at the side edges. It is that it was formed towards.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, the movable contact is a spring receiving piece portion having a shape raised from the rear end side of one of the parallel piece portions toward the other side. And the reinforcing piece portion is formed integrally with a support piece portion that is bent forward from the side edge of the spring receiving piece portion.

  According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the reinforcing piece portion is formed such that a front edge portion is formed along the inner side surface of the contact piece portion. .

  As described above, the press-contact connector according to the present invention includes a housing having a contact accommodating portion opened at a front end, a movable contact accommodated in the contact accommodating portion so as to be slidable in the front-rear direction, and the contact. In the press contact type connector provided with an extrusion spring that is accommodated in the accommodating portion and biases the movable contact in a direction protruding from the front end surface, the movable contact is formed by punching and bending a conductive metal plate. And a pair of parallel pieces facing in the front-rear direction, and a contact piece connecting between the front edge portions of the parallel pieces, and a reinforcing piece disposed between the parallel pieces. The reinforcing piece is formed in the direction between the two parallel pieces so as to support the inner surface of the parallel piece at the side edge, so that the connection object such as a battery can be attached and detached. When doing The sliding direction resulting enhanced yield strength of the movable contact with respect to different directions of the external force, it is possible to prevent deformation of the movable contact.

  Further, in the present invention, the movable contact includes a spring receiving piece portion having a shape raised from the rear end side of one of the parallel piece portions toward the other side, and the reinforcing piece portion is the spring receiving piece portion. By forming it integrally with the support piece part that is bent forward from the side edge, the reinforcement piece part is arranged between the two parallel piece parts without imposing a burden on the part where the external force acts. Bending can be performed. In particular, even a minute one having a total length of about 1 to 2 mm can be suitably bent. Moreover, the support piece part which supported the reinforcement piece part is always arrange | positioned in an insulating housing, and it can prevent exposing a weakly strong part outside.

  Furthermore, in the present invention, the reinforcing piece portion has a front edge formed in a shape along the inner side surface of the contact piece portion, whereby the proof strength of the entire movable contact against an external force acting in a direction different from the sliding direction. Can be suitably strengthened.

It is a perspective view showing an example of a pressure contact type connector concerning the present invention. It is the perspective view seen from the back side lower part same as the above. It is a longitudinal cross-sectional view same as the above. It is a top view which shows an example of the connection board | substrate in FIG. It is a perspective view which shows the movable contact in FIG. It is a longitudinal cross-sectional view which shows the positional relationship of the both parallel piece part of a movable contact same as the above, and a reinforcement piece part. It is an expanded view of a movable contact same as the above.

  Next, an embodiment of the pressure contact type connector according to the present invention will be described based on the embodiment shown in FIGS. In the figure, reference numeral 1 denotes a pressure contact type connector, and reference numeral B denotes a connection board mounted on a small device such as a cellular phone.

  This pressure contact type connector 1 includes a plurality of movable contacts 3, 3... Accommodated in an insulating housing 2 so as to be able to enter and exit, and a substrate connection terminal 4 that is always in contact with the movable contact 3, and is movable. The contact 3 is brought into pressure contact with the contact terminal portion of the connection target such as a battery, so that the connection target such as the battery and the connection substrate B are electrically connected via the substrate connection terminal 4 connected to the connection substrate B. It has become.

  As shown in FIG. 4, the connection board B includes a recess 5 in which the press contact type connector 1 is fitted at the edge, and the press contact type connector 1 is fitted in the recess 5 with the lower half of the insulating housing 2 fitted therein. It can be attached. In the figure, reference numeral 6 denotes a terminal connection pattern to which the board connection terminals 4 are connected, and reference numeral 7 denotes a through hole to which the shield member 8 is connected.

  The insulating housing 2 is molded with an insulating resin material, and has overhanging portions 9, 9, 10 and 10 on both upper edge portions and rear edge upper edge portions, respectively. By supporting the connection substrate B on the inner peripheral edge of the recess 5, the lower half of the insulating housing 2 is fitted to the recess 5 so as to be attached to the connection substrate B. Here, the term “front and rear” refers to the sliding direction of the movable contact 3 and the protruding side of the movable contact 3 is the front, and the vertical direction refers to the height direction of the connector.

  Shield members 8, 8 made of a conductive metal plate material are incorporated in the upper surface portion of the insulating housing 2, and connection pieces 8 a, 8 a that are bent downward from the side edges of the shield member 8 main body are formed as overhang portions 9, 9 protrudes to the lower surface side of the overhanging portion and is fixed to the through holes 7 and 7 of the connection substrate B by soldering or the like.

  Further, in this insulating housing 2, a plurality of rectangular hole-shaped contact accommodating portions 11, 11... Having opening portions 11a, 11b at the front and rear ends are arranged in parallel in the connector width direction. Is formed in the arrangement.

  Slide grooves 12, 12 are formed in the left and right inner portions of the contact housing portion 11 in the front-rear direction and are opened at the rear end of the insulating housing 2 at intervals in the vertical direction. Slide pieces 13, 14 projecting from the side of the child 3 are inserted, and the slide pieces 13, 14 are guided by the slide groove 12, and the movable contact 3 is inserted into the contact accommodating part 11 from the rear end opening 11 b side. In addition to being able to be inserted, the movable contact 3 can be slid in the front-rear direction in the contact accommodating portion 11 in a state in which the movable contact 3 cannot rotate.

  Further, the slide pieces 13 and 14 are stopped against the inner edge of the front end of the slide groove 12, so that the movable contact 3 is prevented from coming off at a position protruding so as to be pushed into the front end of the insulating housing 2. ing.

  The movable contact 3 is formed by punching a conductive metal plate so that the plate-like member 15 shown in FIG. 7 is formed, and bending each plate-like member 15 as shown in FIGS. A pair of parallel pieces 16 and 17 facing in the front-rear direction opposite to each other in the vertical direction, a contact piece 18 connecting the front end edges of both parallel pieces 16 and 17, and one parallel piece A spring receiving piece 19 which is bent toward the other parallel piece 16 side from the rear end of the portion 17 and is arranged at the rear end of the movable contact 3. The reinforcing piece 20 to be arranged is provided integrally.

  The contact piece 18 has an inclined surface facing the front lower side when the elongated plate-like member 15 shown in FIG. 7 is bent at predetermined folds 18a, 18a, and the tip side of the inclined surface is curved in an arc shape. At the same time, the parallel piece portions 16 and 17 are arranged in a shape extending from the upper end edge and the lower end edge of the contact piece portion 18 toward the rear in the horizontal direction.

  The contact piece portion 18 guides a connection target such as a power source battery approached from the upper side of the connector by a slope inclined to the lower front side, and the connection terminal portion to be connected is slid in the sliding direction of the contact piece portion 18. It is made to contact the tip.

  The parallel piece portions 16 and 17 are formed in a long and narrow plate shape in the front-rear direction, and the slide pieces 13 and 14 are integrally formed in a shape projecting outward in the horizontal direction on both sides of the rear end of each parallel piece portion 16 and 17. Has been. Incidentally, the slide piece 13 on one parallel piece side 16 has a connecting portion 13a having a shape extending rearward, and is supported by the component supply reel 21 via the connecting portion 13a. Yes, it is cut off during bending.

  The spring receiving piece 19 is formed in an elongated plate shape that is narrower than the width of the parallel piece 17, and the fold 19 a is bent in an arc shape to make the other parallel piece from the rear edge of one parallel piece 17. It is arranged on the rear end surface portion of the movable contact 3 by being bent toward the portion 16 side, and this spring receiving piece portion 19 is pressed by an extrusion spring 22 such as a coil spring to urge the movable contact 3 in the pushing direction. It has become. In the figure, reference numeral 23 denotes a fitting recess into which the tip of the spring receiving piece 19 formed on the other parallel piece 16 is fitted.

  The spring receiving piece portion 19 is arranged so as to be shifted to one side in the width direction with respect to the parallel piece portion 17, and is reinforced with a support piece portion 24 having a shape bent forward toward the side edge on the other side. 20 is supported.

  The support piece portion 24 is formed so that the vertical width is narrower than the vertical width of the reinforcement piece portion 20, and by making this portion a crease portion, the reinforcement piece portion 20 can be easily directed forward.

  The reinforcing piece portion 20 is formed in a rectangular shape that is long in the front-rear direction, and the front edge portion has a shape along the inner surface of the contact piece portion 18, that is, the oblique side portion 20 a inclined toward the front lower side at the front edge portion. It is formed to have.

  The reinforcing piece portion 20 is bent between the parallel piece portions 16 and 17 by bending the support piece portion 24 toward the front so that the vertical width direction, that is, the rectangular short side direction is directed to the direction between the parallel piece portions 16 and 17. The lower edge portion 20b is in contact with the inner side surface of the lower parallel piece portion 17, and the upper edge portion 20c is in contact with the inner side surface of the upper parallel piece portion 16, respectively.

  As a result, against the external force acting on the movable contact 3 in a direction different from the sliding direction, the parallel piece portions 16 and 17 support each other via the reinforcing piece portion 20, and the reinforcing piece portion 20 functions as a reinforcing member. The deformation of the movable contact 3 is regulated.

  Further, since the oblique side portion 20a is formed on the front edge portion of the reinforcing piece portion 20 along the inner surface of the contact piece portion 7, the contact piece portion 7 is supported and reinforced by the oblique side portion 20a, and the sliding direction High proof stress can be exerted against external forces acting in different directions.

  Note that the punching member 15 can be formed in the shape shown in FIG. 7 by configuring the reinforcing piece portion 20 to be supported by the spring receiving piece portion 19 via the support piece portion 24, and thereby each member 15. , 15 can be reduced to minimize the waste of the conductive metal material generated during punching, and the reinforcing piece 20 can be attached to the other parts without burdening other parts such as the parallel piece during bending. It can be bent so that it can be placed between the parallel pieces 16 and 17.

  The push spring 22 is configured with a coil spring or the like, and has a rear end abutted against a closing plate portion 30 of the board connection terminal 4 as a closing member that closes the rear end opening 11b of the contact accommodating portion 11, and a front end. Is held in the contact receiving portion 11 in a state of being in contact with the spring receiving piece portion 19, thereby urging the movable contact 3 in the pushing direction.

  On the other hand, the board connection terminal 4 is formed by punching and bending an electrically conductive metal plate material having elasticity, and includes a closing plate portion 30 directed in the vertical direction that closes the rear end opening of the contact accommodating portion 11, and a closure The elastic contact piece portion 31 that extends obliquely upward and forward from the lower end of the plate portion 30 and the connection terminal portion 32 that is bent backward from the upper end of the closing plate portion 30 are integrally provided.

  The closing plate portion 30 is formed in an elongated plate shape that is long in the vertical direction, and press-fitting pieces 33 and 33 for fixing the board connection terminals 4 to the insulating housing 2 are formed on both side edges.

  The press-fitting piece 33 is formed by bending the front end side of the support portion projecting outward from both side edges of the closing plate portion 30 toward the front, and the press-fitting piece 33 is opened at the rear end of the insulating housing 2. The board connecting terminal 4 is fixed to the insulating housing 2 in such a manner that the closing plate 30 closes the rear end opening of the contact accommodating part 11 by press-fitting into the hole 34.

  The elastic contact piece 31 is formed in an elongated plate shape in the front-rear direction in which an arc-shaped contact portion 35 is formed at the tip, and by fixing the substrate connection terminal 4 to the insulating housing 2, the contact accommodating portion 11. The contact portion 35 is inserted into a terminal receiving groove 36 formed in the inner bottom surface of the inner bottom portion in the front-rear direction, and the contact portion 35 at the tip is always in elastic contact with the lower surface of the movable contact 3.

  In the pressure contact type connector 1 configured in this way, the end of the connection target such as a power battery is made to approach the connector tip side from above, and the end of the connection target is inclined to the lower front side of the contact piece 18. While being guided to the inclined surface, the connection terminal portion exposed on the end surface of the connection target is brought into contact with the sliding direction tip of the movable contact 3.

  At this time, an external force in a direction different from the sliding direction acts on the movable contact 3, but the outer edge of the reinforcing piece 20 is provided by providing the reinforcing piece 20 between the two parallel pieces 16 and 17. High strength against external force that deforms the movable contact 3 by supporting each part abutting on the inner side surface, that is, both parallel piece parts 16 and 17 and the contact piece part 18 through the reinforcing piece part 20. Thus, deformation of the movable contact 3 can be prevented.

  In the above-described embodiment, the example in which the contact piece portion of the movable contact 3 is formed in a shape inclined toward the front lower side has been described, but the shape of the contact piece portion is not limited to this, and is in an arc shape. It may be a curved shape or the like. In that case, the front end portion of the reinforcing piece portion is preferably formed in an arc shape along the inner surface of the contact piece portion.

  In the above-described embodiment, an example in which a plurality of movable contacts are provided for one insulating housing has been described. However, one movable contact may be provided in one insulating housing.

  Furthermore, in the above-described embodiment, the insulating housing is mounted so as to be fitted in the recess formed in the edge of the connection board B. However, the insulating housing may be mounted on the connection board.

B Connection board B
DESCRIPTION OF SYMBOLS 1 Pressure-contact type connector 2 Insulating housing 3 Movable contact 4 Board connection terminal 5 Recess 6 Terminal connection pattern 7 Shield pattern 8 Shield member 9 Overhang part 10 Overhang part 11 Contact accommodating part 12 Slide groove 13 Slide piece 14 Slide piece 15 Plate Shaped member 16 Parallel piece portion 17 Parallel piece portion 18 Contact piece portion 19 Spring receiving piece portion 20 Reinforcement piece portion 21 Reel 22 Pushing spring 23 Fitting recess 24 Support piece portion 30 Closing plate portion 31 Elastic contact piece portion 32 Connection terminal portion 33 Press-fit piece 34 Press-fit hole 35 Contact portion 36 Terminal receiving groove

Claims (3)

A housing having a contact accommodating portion opened at the front end, a movable contact accommodated in the contact accommodating portion so as to be slidable in the front-rear direction, and the movable contact accommodated in the contact accommodating portion from the front end surface In the press contact type connector comprising an extrusion spring that biases in the protruding direction,
The movable contact is formed by punching and bending a conductive metal plate material, thereby connecting a pair of parallel pieces facing in the front-rear direction facing each other and a front edge of the parallel pieces. And a reinforcing piece portion disposed between the parallel piece portions, and the reinforcing piece portion between the parallel piece portions so as to support an inner surface of the parallel piece portion at a side edge. A press-contact type connector characterized by being formed in a direction.   The movable contact includes a spring receiving piece portion having a shape raised from the rear end side of one of the parallel piece portions toward the other side, and the reinforcing piece portion is forward of a side edge of the spring receiving piece portion. The press-contact type connector according to claim 1, wherein the press-contact connector is formed integrally with a support piece having a bent shape.   3. The press-connecting connector according to claim 1, wherein the reinforcing piece portion has a front edge formed in a shape along an inner surface of the contact piece portion.

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