TWI420762B - Connector for connecting board - Google Patents

Description

Substrate connection connector

The present invention mainly relates to a substrate for connecting a substrate such as an FPC or an FFC to another substrate or a substrate connection connector, and is a substrate for improving an anti-drop mechanism for increasing the removal force of the inserted substrate. Connector for connection.

Conventionally, in the ZIF (Zero Insertion Force) type and the NONZIF (Non Zero Insertion Force) type of substrate connection connector, a type of "overlap and engagement in the housing" has been developed. The upper surface of the outer casing is rotatably disposed in a erecting direction, and the outer casing is integrally cut to form a spring piece portion, and the substrate engaging claw is integrally formed on the spring piece portion, the substrate card When the substrate is inserted into the connector, the claw is pressed by the substrate, and the substrate engagement claw is moved toward the "retracted direction", and the "the engagement portion of the substrate engagement claw is fitted to the substrate" is formed. In this case, the substrate is prevented from falling off by a certain removal resistance (for example, Patent Document 1).

In the above-described conventional FPC prevention device, the conventional technique shown in Patent Document 1 is to form an elastic sheet 3 which is formed by punching a part of the outer casing 2 which is also a shielding member, and is formed along the front end. One of the side edges is bent downward, and the non-return type substrate engaging claws 4 having a "front end triangular shape" are integrally formed, and the outer casing 2 serving as a shielding member is overlapped by the tenth figure. Conductive gold on the surface of the casing 1 of the molded product Formed by a board.

Then, the substrate 5 to be connected is placed in the casing 1 so that the substrate engaging claws 4 are fitted in the hole-shaped or notched contact preventing portion 6 formed in the substrate 5.

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2008-192574

The connector for the conventional board connection described above is remarkably miniaturized by the high functionality and miniaturization of portable electronic devices such as mobile phones. In addition, the anti-drop mechanism is formed by punching and bending the outer casing which is also a masking material. Although it is simple in structure and easy to be compact, it has the following problems: When the force in the pull-out direction acts on any of the inserted substrates, the substrate engaging claws are liable to be broken in the board pulling-out direction.

In view of the above conventional problems, it is an object of the present invention to provide a substrate engaging claw formed by processing a casing that is superposed on an operating element, and having a large removal force against the substrate to prevent falling off A connector for connecting the board of the mechanism.

The invention described in claim 1 for solving the above-mentioned conventional problems and achieving the initial object is characterized in that a connector for board connection is formed as follows: a housing having an elongated flat substrate insertion portion into which a chip insertion portion of the substrate is inserted; and a joint that maintains a specific interval in the width direction of the substrate insertion portion, and most of the arrays Supported by the casing, integrally has a connection terminal portion exposed outside the casing, and a contact spring piece for substrate connection protruding from the substrate insertion portion; and an outer casing formed of a metal plate material, the metal plate is Provided to be overlapped and engaged with the upper surface of the casing, and freely rotatable in a direction erected from the casing; and provided with a substrate engaging claw integrally formed with the outer casing a spring piece portion that is integrally formed is inserted into the substrate insertion portion from the upper surface side of the casing in a state in which the casing is overlapped with the casing, and a state in which the blade portion is inserted into the substrate insertion portion is inserted into the connector of the substrate. The substrate connection connector that engages the substrate engagement claw in the detachment prevention engagement portion provided in the insertion portion of the connector, wherein the bullet is formed The sheet portion is bent to integrally form the substrate engaging claw, and the substrate engaging claw is configured by an inclined piece portion that slides under the front edge of the substrate inserted into the substrate insertion portion And the upward locking piece portion is formed by bending the front end of the inclined piece portion upward and extending, and is capable of abutting the edge portion of the engaging claw fitting portion of the substrate And restricting the removal of the substrate; and providing a lower movement restricting piece that is integrally formed at a front end of the upward locking piece toward the horizontal direction of the rear side of the casing, and abuts against the casing The downward movement of the aforementioned substrate engaging claw is restricted on the upper side.

The invention according to claim 2 is characterized in that, in addition to the structure of the request item 1, the spring piece portion, the substrate engaging claw, and the lower movement restricting piece are integrally formed with the outer casing by molding the outer casing. The strip spring piece is formed by bending and formed integrally.

The invention according to claim 3 is characterized in that, in addition to the configuration of any one of the request items 1 or 2, at the outer casing, at a position corresponding to the lower side movement restricting piece, the lower side is movable The retracting window for restricting the sheet to enter and exit in the up and down direction.

The invention according to claim 4 is characterized in that, in addition to the structure of any one of the claims 1 or 2, the outer casing is integrally provided with a casing that hangs down on the back side of the upper locking piece of the substrate engagement claw, A front side movement restricting piece for restricting the movement of the upward locking piece toward the board pulling direction side.

The invention according to claim 5 is characterized in that, in addition to the structure of the request item 4, the retracting window hole is formed by punching a punch hole formed by the front side movement restricting piece.

In the present invention, the substrate engaging claw is integrally formed in the spring piece portion, and the spring piece portion is formed by "a metal plate which is freely rotatable in a direction rising from the housing" The outer casing is integrally formed, and the substrate engaging claw is inserted into the substrate insertion portion from the upper surface side of the casing in a state in which the outer casing overlaps the casing; and the inserting portion is inserted into the substrate in the connector of the substrate. In the state of the insertion portion, the aforementioned substrate card is made In the board connection connector formed by the engagement of the claws in the engagement preventing portion for the insertion preventing portion of the insertion portion of the connector, the substrate engagement claw that is integrally formed by bending the spring piece portion is as follows The inclined piece portion is pushed up by sliding the front end edge of the substrate inserted into the substrate insertion portion to the lower surface side; and the upward locking piece portion is the upward locking piece portion The front end of the inclined piece portion is bent upward and extended, and the edge portion of the engaging claw fitting portion of the substrate is abutted to restrict the extraction of the substrate; and the "the horizontal direction toward the back side of the casing is integrated a lower side movement restricting piece formed on the front end of the upper locking piece portion and abutting against the upper surface side of the casing to restrict the downward movement of the substrate engaging claw, and the force is applied after the insertion of the substrate, although The downward force is applied to the upward locking piece, but the lower movement restricting piece abuts against the upper surface side of the casing to prevent the downward movement, thereby preventing the rotation toward the lower side, thereby resisting the larger movement In addition to force.

Further, in the invention, the spring piece portion, the substrate engaging claw, and the lower movement restricting piece are formed by bending a band-shaped spring piece integrally formed with the outer casing when the outer casing is molded. Thereby, the above parts can be easily formed at low cost.

Further, in the present invention, the retracting window opening for the lower side movement restricting piece to enter and exit in the vertical direction is provided at the position corresponding to the lower side movement restricting piece at the outer casing, and the retracting window hole can be enlarged. The vertical movement length of the side movement restricting piece can be easily matched even with a substrate having a thick material thickness.

Further, in the present invention, the outer casing is integrally provided with "the sag on the back side of the upper locking piece portion of the substrate engaging claw, and is used to restrict The front side movement restricting piece of the operation of the upward locking piece toward the substrate pulling direction side, when the removing force acts on the substrate to move the substrate engaging claw toward the substrate pulling direction, the locking piece is upwardly The back side abuts against the front side movement restricting piece against the force in the direction in which the substrate is pulled out, and cooperates with the action of the aforementioned lower side movement restricting piece to form a structure against a larger removal force.

Further, in the present invention, the retracting window hole is formed by punching "forming the front side movement restricting piece", and the material utilization rate can be reduced (refer to reducing the waste generated by the cutting). ) is better and can reduce the processing steps.

Next, an embodiment of the present invention will be described based on the embodiments shown in the drawings. Figs. 1 to 8 are views showing an example of an FPC connector in which the connector for board connection of the present invention has been implemented. The connector includes a housing 10, and a plurality of joints 11, 11, ... supported by the housing; and a housing 12 that also serves as a masking material that overlaps the upper surface of the housing.

The casing 10 is molded of an insulating synthetic resin material, and an elongated flat substrate insertion portion 20 is formed in the thickness thereof, and an opening portion is formed in the front of the casing to form an opening The connector inserting the sheet portion a into the connector of the substrate A to which the connector is attached can be inserted from the opening.

As shown in Fig. 5, the joint 11 has a support piece portion 22 which is press-fitted into the joint fixing groove 21 on the lower side of the substrate insertion portion 20 of the casing 10, and an elastic contact piece portion 23, the elasticity The contact piece portion 23 is integrally formed" The soldering connection terminal portion 24 is integrally formed on the rear end side of the support piece portion 22 and protrudes to be the same as the bottom surface of the case, and the soldering connection terminal portion 24 is integrally formed on the rear end side. The height of the arc-shaped contact portion 25 integrally formed at the front end portion of the elastic contact piece portion 23 protrudes from the lower side into the substrate insertion portion 20 of the casing.

Then, the connector insertion portion a of the substrate is inserted into the substrate insertion portion 20, and the contact portion 25 is pressed by the insertion piece portion a to move downward, and the insertion of the insertion piece portion a is completed. At the position, the contact portion 25 is formed to elastically contact the connection terminal 26 of the board substrate.

The outer casing 12 is formed by punching and bending a conductive metal plate, and is configured to overlap the upper surface of the casing 10 and cover the flat casing body portion 28 on the upper surface of the casing 10; Further, the pair of side plate portions 29 and 29 which are formed by "bending both end portions of the casing main body portion 28 into a right-angled shape" are integrally formed; and the bearing plate 30 and the locking projection 31 are formed in the side plate portion 29. A support shaft 32 integrally formed on a side surface of the housing is fitted into the bearing hole 30, and the outer casing 12 is formed to be rotatable about the support shaft 32 at a position from the upper surface of the housing 10. Position up to the position above the housing.

Fixings 33 are provided on both sides of the casing 10 for preventing the casing 12 from coming off and being engaged in a state in which the casing 12 has been superposed on the casing. The jig 33 is integrally formed at both ends of the grounding member 34 fixed to the upper surface of the casing, and includes a lower piece portion 35 that bends the grounding member 34 downward at the tip end of the grounding member 34, and includes: The support piece portion 36 bent downward in the horizontal direction toward the lower end of the lower piece portion 35, the front end of the support piece portion 36 is upward The jig 33 is formed by bending.

The side plate portions 29 at both ends of the outer casing are inserted between the lower piece portion 35 and the jig 33, and the side plate portion 29 is prevented from being detached from the support shaft 32 by the jig 33.

Further, a locking window 37 is formed by squeezing the jig 33, and a locking protrusion 31 that "cuts and integrally forms the side plate portions 29, 29 of the outer casing 12" is engaged with the locking window 37. In a state where the outer casing 12 is superposed on the upper surface of the casing, the locking projection 31 is fitted to the locking window 37, whereby the outer casing 12 is not easily rotated in the vertical direction. Further, the tongue piece which is punched and formed by the formation of the locking window 37 is soldered to the ground terminal 39 which is "the board on which the connector is mounted (not shown in the drawing)".

A grounding joint 38 is integrally formed in the grounding member 34, and its front end is inserted into the substrate insertion portion 20 of the casing 10 to form a grounding terminal 26a that is in contact with the substrate A.

At the outer casing 12, a substrate falling prevention mechanism is integrally provided at both end portions thereof. In the front side of the casing of the casing main body portion 28, that is, the strip-shaped spring piece portion 40 which is extended toward the front side from the edge portion on the opening side of the substrate insertion portion, the anti-drop mechanism has a U-shaped portion 40 which is folded downward toward the lower side. The elastic piece portion 41 of the shape and the substrate engagement claw 42 formed by bending the distal end side of the elastic piece portion; and the distal end portion of the "spring piece constituting the substrate engagement claw 42" The lower side moves the restriction piece 43.

The substrate engaging claw 42 is configured by an inclined piece portion 42a which is formed by extending the front end of the elastic piece portion 41 toward the obliquely lower side, and an upward locking piece portion 42b for the upward locking piece The portion 42b is formed by extending the front end of the inclined piece portion 42a upward.

Further, in the casing main body 28, an open retracting window hole 44 for allowing the lower side movement restricting piece 43 to move up and down is formed at a position above the lower side movement restricting piece 43.

Next, at least the front end portion of the substrate engagement claw 42 is inserted into the substrate insertion portion 20 through the slit 45 having the opening formed in the upper surface of the casing 10. Although the slit 45 in this embodiment has a shape in which the front side, that is, the front side of the casing 10, is formed to open toward the front of the casing, it may be a window opening that is open toward the upper surface of the casing 10.

The right and left edge portions of the sheet portion a are inserted into the connector of one of the substrates, and the engagement claw fitting portion 46 that penetrates the upper and lower sides is formed, and the insertion portion a is inserted into the connector at a specific depth in the connector. In the state of the engagement claw fitting portion 46, the substrate engagement claws 42 are disposed.

The lower side movement restricting piece 43 is formed by bending the front end of the upward locking piece portion 42b toward the back side of the casing to be horizontal.

The lower side movement restricting piece 43 is formed so as to restrict the downward movement of the lower side by abutting against the "restricted piece abutting portion 47 on the upper surface of the casing 10".

At the outer casing 12, on the back side of the upward locking piece portion 42b, that is, the front side of the casing, a front side movement restricting piece 50 that protrudes downward is integrally formed. The front side movement restricting piece 50 is a portion which is formed by bending a tongue which is "removed in a U-shaped shape on the outer casing 12 and formed into a rectangular shape". In this example, the retracting window is punched out. The tongue that is bent after the hole 44 is broken.

Furthermore, although the front side movement restricting piece 50 is not an essential member, it can be used together with the lower side movement restricting piece 43 to enhance the durability of the substrate A. Remove force.

Next, the action of the above FPC connector will be explained.

Before the insertion of the substrate A, the outer casing 12 is superposed on the upper surface of the casing 10, and the elastic contact piece portion 23 of the joint 11 is formed to protrude into the substrate insertion portion 20. At this time, the outer casing 12 is formed such that the locking projection is engaged with the jig 33 to prevent the movement in the vertical direction from being blocked.

In the above state, the connector insertion piece a of the substrate A is inserted into the substrate insertion portion 20 of the case. At this time, the elastic contact piece portion 23 of the joint 11 is pressed by the insertion piece portion a, and is moved in the retracting direction, and the elasticity of the elastic contact piece portion 23 is made in a state where the insertion piece portion a is inserted to a certain depth. The contact portion 25 is pressed into contact with the connection terminal 26 of the insertion piece portion a. Similarly, the grounding joint 38 is also pressed into contact with the grounding terminal of the insertion piece a.

When the insertion piece portion a is inserted, the front end edge of the insertion piece portion a is slid on the lower surface side of the inclined piece portion 42a of the substrate engagement claw 42, and the substrate engagement claw 42 is pushed upward. At this time, since the lower movement restricting piece 43 is raised into the retracting window hole 44 of the casing main body 28, the substrate engaging claw 42 can be raised without interference.

Then, when the insertion piece portion a is inserted into the specific position, the substrate engagement claw portion 42 is fitted into the engagement claw fitting portion 46 of the insertion piece portion a to be fitted.

In this state, when the insertion piece portion a is inserted into the substrate insertion portion 20, when the removal force is applied to the substrate A for some reason, the front end side edge portion 46a of the engagement claw fitting portion 46 comes into contact. The orientation of the substrate engaging claws 42 The upper tab portion 42b is latched to prevent removal.

Once the above-described removal force is applied, the substrate engaging claw 42 serves as a fulcrum for the base end portion of the elastic piece portion 41 as a fulcrum, and if the applied removal force is greater than the resistance, the substrate engaging claw 42 A force acting in a direction in which the elastic piece portion 41 is floated is formed, and a downward force is applied to the upwardly locking piece portion 42b, but at this time, a lower side movement restricting piece integral with the substrate engaging claw 42 is formed. 43 is abutting on the upper side of the casing to prevent the downward movement, and to prevent the rotation of the substrate engaging claw 42 toward the lower side, thereby being able to resist a larger removal force.

Further, since the front side movement restricting piece 50 is present on the back surface of the upward locking piece portion 42b, when the above-described removal force acts to move the substrate engaging claw 42 toward the substrate pulling-out direction, the upper locking piece portion 42b is latched upward. The back side of the back side abuts against the restriction piece 50 against the force in the direction in which the substrate is pulled out, and cooperates with the action of the lower side movement restricting piece 43 to become a structure against strong removal force.

Therefore, even in the case where the substrate engagement claw is integrally formed on the "very thin outer casing having a thickness of 0.1 mm or less" by punching, it is possible to resist strong removal force. And achieve a safer product in miniaturization.

Further, when the inserted substrate A is pulled out, the outer casing 12 is erected in the state in which the two side plate portions 29 of the outer casing 12 are released by bending the jig 33 in the opening direction. The direction above turns. Thereby, the substrate engagement claws 42 are detached from the substrate insertion portion 20 of the casing 10, and the restraining of the drawing direction of the substrate A is released, thereby forming a state in which it can be easily pulled out.

A‧‧‧Substrate

a‧‧‧Insert insert in the connector

10‧‧‧shell

11‧‧‧Connector

12‧‧‧ Shell

20‧‧‧Substrate insertion section

21‧‧‧ joint fixed groove

22‧‧‧Support piece

23‧‧‧Flexible contact parts

24‧‧‧Connecting terminal

25‧‧‧Contact Department

26‧‧‧Connecting terminal

26a‧‧‧ Grounding terminal

28‧‧‧Shell body

29‧‧‧Side plate department

30‧‧‧ bearing hole

31‧‧‧Snap protrusion

32‧‧‧ Support shaft

33‧‧‧ fixture

34‧‧‧ Grounding members

35‧‧‧Departure

36‧‧‧Support section

37‧‧‧Card window

38‧‧‧Ground connector

40‧‧‧Striped spring parts

41‧‧‧ Elastic film department

42‧‧‧Substrate clamping claw

42a‧‧‧ Inclined piece

42b‧‧‧Upper stop

43‧‧‧Bottom movement limiter

44‧‧‧Retraction window

45‧‧‧Slit

46‧‧‧Clamping claw fitting

50‧‧‧ Front side movement restriction

Fig. 1 is a plan view showing an example of a connector for connecting substrates in the present invention.

Fig. 2 is a front view of the connector for board connection of Fig. 1.

Fig. 3 is a side view of the connector for board connection of Fig. 1.

Fig. 4 is a longitudinal sectional view showing a portion of the substrate-preventing connector in the connector for board connection shown in Fig. 1.

Fig. 5 is a longitudinal sectional view showing a joint portion of the connector for board connection of Fig. 1;

Fig. 6 is a perspective view of the outer casing viewed from the front lower side in the connector for board connection of Fig. 1.

Fig. 7 is a perspective view of the outer casing viewed from the upper side of the front side.

Fig. 8 is a partially enlarged rear elevational view showing a portion of a jig for engaging the above casing.

Fig. 9 is a view showing an example of a substrate to which the substrate connection connector of Fig. 1 is connected, wherein (a) is a partial bottom view and (b) is a partial plan view.

Fig. 10 is a view showing an example of a connector for connecting a conventional substrate, wherein (a) is a plan view of the entire connector, and (b) is a longitudinal sectional view of a portion of the substrate preventing fall-off mechanism.

A‧‧‧Substrate

a‧‧‧Insert insert in the connector

11‧‧‧Connector

12‧‧‧ Shell

20‧‧‧Substrate insertion section

24‧‧‧Connecting terminal

25‧‧‧Contact Department

28‧‧‧Shell body

34‧‧‧ Grounding members

40‧‧‧Striped spring parts

41‧‧‧ Elastic film department

42‧‧‧Substrate clamping claw

42a‧‧‧ Inclined piece

42b‧‧‧Upper stop

43‧‧‧Bottom movement limiter

44‧‧‧Retraction window

45‧‧‧Slit

46‧‧‧Clamping claw fitting

46a‧‧‧Front edge of the front end

50‧‧‧ Front side movement restriction

Claims (5)

A connector for connecting a substrate is a connector for connecting a substrate formed by a member having an elongated flat substrate insertion portion into which a plug portion of a connector of the substrate is inserted, and a joint, The joint is held at a predetermined interval in the width direction of the substrate insertion portion, and is supported by the casing in a plurality of rows, and integrally has a connection terminal portion exposed outside the casing and a substrate connection protruding from the substrate insertion portion. Contacting the spring piece; and the outer casing, the outer casing is formed of a metal plate, the metal plate is disposed to overlap the state of the casing, and is freely rotatable in a direction erected from the casing; The board connecting connector includes a board engaging claw that is integrally formed with a spring piece integrally formed with the outer casing, and is inserted from the upper side of the casing in a state in which the outer casing overlaps the casing. In the substrate insertion portion, in a state in which the insertion portion of the connector of the substrate is inserted into the substrate insertion portion, the substrate engagement claw is formed to be engaged with the substrate insertion claw In the engagement preventing portion for preventing the detachment of the insertion portion of the connector, the spring piece portion is bent to integrally form the substrate engagement claw, and the substrate engagement claw is configured to be inclined a slanting piece that slides under the front edge of the substrate inserted into the substrate insertion portion And the upward locking piece portion is formed by bending the front end of the inclined piece portion upward and extending, and is capable of abutting the edge portion of the engaging claw fitting portion of the substrate And restricting the removal of the substrate; and providing a lower movement restricting piece that is integrally formed at a front end of the upward locking piece toward the horizontal direction of the rear side of the casing, and abuts against the casing The downward movement of the aforementioned substrate engaging claw is restricted on the upper side. The substrate connecting connector according to the first aspect of the invention, wherein the spring piece portion, the substrate engaging claw, and the lower movement restricting piece are formed integrally with the outer casing by molding the outer casing. The leaf spring portion is formed by bending and formed integrally. The connector for board connection according to the first or second aspect of the invention, wherein the outer casing is provided at a position corresponding to the lower side movement restricting piece: the lower side movement restricting piece is movable in the vertical direction Retracting window. The connector for board connection according to the first or second aspect of the invention, wherein the outer casing is integrally provided on the back side of the upper locking piece of the substrate engagement claw to restrict the upward locking The front side movement restricting piece that moves the sheet portion toward the substrate side. The connector for board connection according to the third aspect of the invention, wherein the outer casing is integrally provided on the back side of the upper locking piece of the substrate engagement claw to restrict the upward locking piece a front side movement restricting piece that moves toward the boarding direction side; and the retracting window hole is formed by punching a punching hole formed by the front side movement restricting piece.