JP2008192574A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector capable of preventing a flexible printed wiring board (FPC) or a flexible flat cable (FFC) from separating and easy to assemble. <P>SOLUTION: The connector has a plurality of contacts 3 in parallel on an inserting space section 22 having an inserting hole 21 as an opening, and has a through-hole 23 penetrated from its surface to the inserting space section 22 on a connector body 2 capable of connecting the FPC or FFC, and has a shell 4, in which a base end section is rotatably locked on the connector body 2, installed along the surface where the through-hole is arranged, and has a locking projection 44 which projects into the inserting space section 22 by inserting into the through-hole 23 at an installing position on the shell 4 along the connector body 2 and is located outwardly on the inserting space section 22 at the time of rotating of the shell 4 and is moved outwardly to the through-hole 23 by pushing. The locking projection 44 is a projection vertically arranged toward an internal surface side of a locking space section, and is formed by inclining an inserting hole 21 side, and has spring force movable to the outside of the inserting hole when pushing from the inserting hole 21 side. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a connector to which a flexible printed wiring board or a flexible flat cable can be connected, and more particularly, to a connector that facilitates connection of the flexible printed wiring board or the flexible flat cable and can prevent removal.

  In general, connectors used for connecting a flexible printed wiring board (hereinafter referred to as FPC) or a flexible flat cable (hereinafter referred to as FFC) to a printed circuit board are either ZIF type or NON-ZIF type. It was.

FIG. 12 shows a ZIF type connector, and FIG. 13 shows a NON-ZIF type connector. FIG. 12 shows an explanatory view of the central longitudinal section, and FIG. 13 shows an explanatory view of a partially cut-out central longitudinal section.
Reference numeral 100 denotes an example of a conventional ZIF type connector. As shown in FIG. 12, the ZIF type connector 100 has a thin box shape with a rectangular shape in plan view in which a plurality of contacts 102 are fixedly arranged inside the housing 101. Then, the housing 101 is fixed by causing one end of a contact 102 arranged in parallel inside the housing 101 to protrude outward from the back surface (right side surface in the figure) side of the housing 101. In addition, an insertion port 105 that opens horizontally so that an FPC can be inserted is provided on the front side (left side surface in the drawing) of the housing 101.
One end of the contacts 102 fixed side by side protrudes outward from the housing to form a substrate fixing portion 102a, and the other end extends in a U-shape and the other end forms an FPC contact portion 102b to form the inside of the housing 101. If the tip is positioned below and the tip is applied with a force against its own spring force, the tip is movable, and the opposite side is fixed inside the housing 101.
In addition, an actuator 103 is provided on the front side which is the side where the insertion port 105 of the housing 101 is opened from the left and right side surfaces (from the front side to the back side in the figure). The actuator 103 is configured such that the base end portion is pivotably locked with the housing 101 and the intermediate portion is positioned in the insertion port 105 and is configured to move to the lower surface side of the housing 101 along with the rotation. To do. Accordingly, when the actuator 103 is rotated downward (counterclockwise in the drawing) with respect to the housing 101, the contact pressing portion 104 is also rotated in the same direction.

The FPC is formed by arranging a plurality of contact portions X that enable electrical contact at the tip. The parallel arrangement pitch of the contact portions X matches the parallel arrangement pitch of the contacts 102 provided in the ZIF type connector 100. The insertion opening for opening the FPC configured as described above to the ZIF type connector 100 from the contact portion X side. Insert into 105. At this time, the FPC is only inserted into the insertion port 105 at the end, and is not fixed to maintain the inserted state.
In this state, by rotating the actuator 103 of the ZIF type connector 100 in the direction indicated by the arrow in the drawing, the contact pressing portion 104 presses and contacts the contact portion X of the FPC to the contact portion 102b of the contact 102, and FPC and ZIF The connection with the type connector 100 is completed.

On the other hand, the NON-ZIF type connector 200 shown in FIG. 13 is an example of a NON-ZIF type connector, and has a thin box shape with a rectangular shape in plan view in which a plurality of contacts 202 are fixedly arranged inside the housing 201. The housing 201 is fixed by causing one end of a contact 202, which is fixed in parallel inside the housing 201, to protrude outward from the back surface (right side surface in the drawing) of the housing 201. In addition, an insertion slot 205 is opened on the front surface (left side surface in the drawing) side of the housing 201 in the same manner as the ZIF type connector 100.
One end of the contacts 202 fixed side by side protrudes outward from the housing to form a substrate fixing portion 202a, the other end is extended in a U shape, and the opposite end portion of the U shape is configured in a spring shape. . The other end of the U-shape constitutes the contact portion 202b, is opposed to a gap that is narrower than the thickness of the FPC, has a spring force, and resists the spring force of itself. When added, the gap is widened, and the contact portion X of the FPC is inserted into the gap, so that the contact portion X and the contact portion 202b are in good electrical connection.

  In the NON-ZIF type connector 200 configured as described above, when the FPC is inserted from the insertion port 205 side as indicated by an arrow in the figure, the contact portion X of the FPC eventually spreads the contact portion 202b facing the contact portion 202b. The contact portion 102b and the contact portion X are in good electrical connection by the spring force of the contact portion 202b inserted into the U-shaped opening and spread.

In the conventional ZIF type connector 100, since the entire FPC surface is pressed by the contact pressing portion 104, the electrical connection between the contact 102 and the FPC can be ensured, and the FPC can be easily performed. The state where it is not removed from the ZIF type connector 100 can be maintained.
However, in the assembly process of the electronic device, the ZIF type connector 100 is conveyed with the actuator 103 rotated downward and enters the assembly process. Therefore, in order to connect the FPC to the printed circuit board, the ZIF type connector 100 is used. The contact pressing portion 104 is once rotated upward to make it possible to insert the FPC, and then the contact pressing portion 104 is rotated to the original position to connect the FPC and the contact 102. Two steps of opening and closing the actuator 103 were indispensable for the step. These two processes are fatal problems for mass production in which the production rate is reduced in the manufacture of electronic devices and the like that require mass production.

On the other hand, in the NON-ZIF type connector 200, the actuator is not required and the FPC is simply inserted, so that the number of steps required for assembly can be reduced by two steps compared to the ZIF type connector 100.
However, in the NON-ZIF type connector 200, the connection and fixing between the FPC and the NON-ZIF type connector 200 is maintained only by the pressing contact force of the plurality of contacts 202 arranged side by side. The drag that opposes the force is weak, and there is a problem that the FPC is pulled out.

  As described above, the conventional ZIF type connector and the NON-ZIF type connector have their respective advantages, but have their own problems.

  Therefore, in view of the above problems, an object of the present invention is to provide a connector that makes the connection between the FPC and the connector stronger and does not increase the number of manufacturing steps.

  In the present invention, when assembling an electronic device, the FPC is connected to the printed circuit board only by inserting the FPC, and the connector is not easily removed.

In the connector that can form an insertion space portion that opens an insertion port in a long and thin shape, and a plurality of contacts are arranged in parallel in the insertion space portion, and an FPC or FFC can be connected,
The connector body that forms the insertion space portion is provided with an insertion hole penetrating from the surface to the insertion space portion,
A shell made of a plate-like body and attached along the surface in which the insertion hole of the connector main body is drilled, and a base end portion is provided as a rotation fulcrum, and is provided with a shell that is rotatably locked to the connector main body.
The shell is inserted into the insertion hole at a position attached along the connector main body, protrudes into the insertion space portion, is positioned outside the insertion space portion when the shell is rotated, and is pressed in the insertion hole. A connector characterized by providing a locking projection that is moved outwardly of the insertion hole;

I will provide a. Therefore, in the connector provided by the present invention, for example, when the insertion end of the FPC is inserted into the insertion space portion from the insertion opening, a plurality of contacts arranged in parallel to the end portion of the FPC are arranged in parallel in the insertion space portion. The contact is pressed and contacted to complete the electrical connection, but when the FPC is inserted, the tip of the FPC comes into contact with a locking projection provided on the shell. When the insertion of the FPC is further advanced, the FPC presses the locking projection, so that the locking projection moves outside the insertion hole in the insertion space.
Then, the tip of the FPC is positioned below the locking projection and gets over the locking projection. At this time, since the locking hole is previously formed in the FPC, the locking projection enters the locking hole. The locking hole provided in the FPC is drilled in advance at a position where the contact and the contact of the FPC come into contact with each other to make a good electrical connection.
Therefore, since the locking projection of the shell and the locking hole of the FPC are locked at a position where the FPC is inserted and a good electrical connection is made, a good electrical connection is made and the position of the FPC relative to the connector is fixed. Is done.

  When removing the FPC from the connector, the shell is rotated about the rotation axis of the shell. Then, the shell is rotated outward from the connector main body, so that the locking projection provided on the shell moves outward of the locking hole of the connector main body, and the locking projection of the shell and the locking hole of the FPC Will be released. In this state, the FPC can be pulled out from the connector, and the operator pulls out the FPC.

  In the case where the connector cannot obtain a sufficient deterrent (drag) against the force applied in the lateral direction perpendicular to the direction in which the FPC or FFC is inserted due to its mechanical characteristics, ,

  The connector body has anti-sway grooves on both ends of the connector body on the insertion port side, and the shell has anti-sway locking pieces that enter and lock into the anti-sway groove at positions attached along the connector body. The steady rest locking piece is provided so that the leading end side of the locking piece enters the groove even when the shell is rotated.

By providing the connector configured as described above, at least a part of the steady-state locking piece provided on the shell is located in the steady-state groove provided on the connector body regardless of the rotation of the shell. Regardless of the above, the locking piece resists the force to move the shell in the lateral direction by contacting the locking groove with the locking piece.

The FPC is not limited to the FPC but may be connected to the connector. The FFC can also be connected to the connector by the same operation as described above, and can be detached from the connector by rotating the shell. .
Further, in this invention, the locking projection provided on the shell is formed with the insertion port side inclined, and has a spring force that can move outward from the insertion port when pressed from the insertion port side.

Therefore, when the FPC moves toward the inner side of the insertion port while pressing the inclined portion, the pressing force of the FPC presses the locking projection against the spring force of the locking projection, and the inclined portion It is moved upward (outside of the insertion slot) along the end of the FPC.

Since the connector according to the present invention is configured as described above, the reliability of the electrical connection between the contact and the FPC, and the difficulty of disconnecting the FPC from the ZIF type connector, which are included in the conventional ZIF type connector, are as follows. The NON-ZIF type connector has a unique effect of ensuring the ease of assembly by simply inserting the FPC.
And by these, while manufacturing the electronic equipment etc. which require mass production, while overcoming the fatal problem for mass production that leads to a decrease in the production rate, the resistance against the force applied in the FPC removal direction is weak and somewhat Then, the problem that the FPC is removed is overcome, and there is an effect that the connection between the FPC and the connector is made stronger without increasing the manufacturing process.
Therefore, according to the present invention, when used for a ZIF type connector, it is not necessary to open and close the shell to obtain a good contact pressure with the contact after insertion, and a mechanism for preventing the FPC or FFC from coming off is provided. Has the effect of being able to. Further, even when used for a NON-ZIF type connector, there is an effect that an FPC or FFC retaining mechanism can be provided.

The connector includes a housing body and a shell.
The housing body has an elongated rectangular shape in plan view, the long side surface forms the front and back surfaces, the short side surface forms the left side surface and the right side surface, and the inside has an insertion opening that opens to the front surface. Create a space.
In the insertion space, a plurality of contacts are provided side by side in the longitudinal direction. The contact forms an upper and lower contact portion at approximately the center in the insertion space, and an end portion is positioned outside the housing body to form a board connection portion and is fixed to a printed circuit board or the like to which a connector is connected. Connected.
In the upper surface of the housing main body, an insertion hole is formed in the end portion on the left and right side surfaces so as to penetrate through the insertion space from the upper surface. The insertion hole drilled in the upper surface of the housing body is elongated from the front side to the back side. Further, the insertion holes are formed so as to be located on both sides of the contact group arranged in parallel in the insertion space portion.
Further, the housing main body is provided with a rotation shaft projection serving as a rotation shaft when the shell is rotated on the insertion port side on each of the left and right side surfaces.

The shell has a plate shape as a whole, is configured by a metal plate having substantially the same area as the front surface of the housing body, and is disposed to face the front surface of the housing body. The shell is bent so that the left and right side surfaces of the housing main body are bent along the left and right side surfaces of the housing main body to form the left and right side surfaces, and the insertion port side that is one end of each of the left and right side surfaces is extended to serve as a rotation shaft. Construct a moving base. A pivot shaft hole is formed in the pivot base. In the shell, the rotation shaft hole is rotatably locked to the rotation shaft protrusion of the housing body.
Further, the shell is provided with a locking projection at a position opposite to the insertion hole formed in the housing body. The locking projection is formed by cutting a metal plate constituting the shell. The notch is formed into a leaf spring shape from the proximal end to the distal end side, and further, the distal end portion is formed wide and inserted into the insertion hole of the housing body so as to protrude into the insertion space portion. The locking projection is formed by bending. Accordingly, when a force for moving the locking projection to the upper surface side against the urging force of the spring portion acts in the insertion space portion of the housing body, the spring portion is bent and moved. The edge on the insertion port side of the locking projection is provided so as to incline up and down. The inclination is inclined so as to be located on the back side of the insertion space as it goes to the lower surface side of the housing body.

The FPC or FFC used for this connector is engaged with the locking projection at a position opposite to the locking projection protruding into the insertion space at the position where it is inserted from the insertion port and properly attached to the insertion space. The stop hole which can be stopped is drilled.
In the connector configured in this manner, the contact board connecting portion is connected and fixed to the printed circuit board with the shell positioned along the housing body and the locking projection protruding from the insertion space when manufactured. Yes.
At this stage, the FPC or FFC is inserted into the connector from the insertion port into the insertion space.
The FPC or FFC then presses the locking projection of the shell in the insertion port. Since the locking projection works so that the component force of the pressing force moves the locking projection upward, it moves upward against the spring force of the spring portion, and eventually gets over the end of the FPC or FFC. Then, the FPC or FFC is inserted further into the back because the locking projection has climbed over the upper surface, and when it reaches a proper mounting position, the locking projection enters the locking hole formed in the FPC or FFC. Get in.
In this state, since the locking projection and the locking hole are in the locked state, even if a force that pulls out from the connector is applied to the FPC or FFC, it is not easily removed.

When the FPC or FFC is removed from the connector, the shell that is pivotably engaged with the rotation shaft protrusion is rotated.
Then, the locking protrusion is detached from the locking hole of the FPC or FFC, and the FPC or FFC is pulled out from the insertion port.

Embodiment 1 of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective explanatory view seen from the front upper side representing the first embodiment of the present invention, FIG. 2 is a perspective explanatory view seen from the lower front side representing the first embodiment, and FIG. 3 is a substantially central view in FIG. 4 is an explanatory view showing an insertion part of an FPC which is an inserted body, FIG. 5 is an explanatory perspective view showing a locking projection part of a connector, and FIG. It is explanatory drawing showing the contact state with a latching protrusion.

Reference numeral 1 denotes a connector according to Embodiment 1 of the present invention. The connector 1 includes a housing body 2, a contact 3 that is installed and fixed in the housing body 2, and a shell 4 that is rotatably locked to the housing body 2.
The connector 1 is an electronic component for causing electrical connection and physical connection between the FPC or FFC and the printed circuit board.
The housing body 2 has an elongated rectangular shape in plan view, the long side surface forms a front surface and a back surface, and the short side surface forms a left side surface and a right side surface. The housing main body 2 is formed by opening an insertion port 21 on the front surface and forming an insertion space portion 22 on the rear side. Therefore, the insertion space 22 is formed in a long and narrow groove shape that is deeply carved toward the back side. And in the insertion space part 22, the some contact 3 is arranged in parallel in the left-right direction. The housing body 2 is made of a polymer resin that is an insulating material.

The contact 3 includes an upper contact 31 and a lower contact 32.
One end of the upper contact 31 forms a substrate connecting portion 31 a and is located outside the back side of the housing body 2. In addition, the middle portion of the upper contact 31 is bent into a U shape to form an attachment fixing portion 31b, which is fixed to the upper surface side in the insertion space portion 22, and further is a tip which is the other end bent into a U shape. The side has a spring force and is extended from the attachment fixing portion 31b to form a contact portion 31c. The contact portion 31c is located on the lower surface side facing the upper surface of the insertion space portion 22 to which the upper contact 31 is fixed with respect to the mounting fixing portion 31b, and the contact 31d protrudes on the lower surface side in the middle portion. To be provided.
One end of the lower contact 32 is positioned from the lower part on the front side of the housing body 2 to the outside of the housing body 2 to form a board connection portion 32a, and an intermediate portion is fixed to the lower surface side in the insertion space 22 of the housing body 2. A fixing portion 32b is formed, and a contact portion 32c is formed so that the other end side extended from the attachment fixing portion 32b is opposed to the contact 31d of the upper contact 31. The contact portion 32c extends from the mounting and fixing portion 32b. The contact portion 32c has a spring force, and a tip portion thereof is opposed to the contact 31d of the upper contact 31 to form a contact 32d.

As described above, a plurality of contacts 3 formed from the upper contact 31 and the lower contact 32 are fixed in parallel in the left-right direction, that is, the longitudinal direction in the insertion space portion 22, and the contact 31 d of the upper contact 31 and the contact of the lower contact 32 facing each other. The gap 32d is provided to be narrower than the thickness of the FPC or FFC that is the object to be inserted. Then, when the contact 3 is inserted between the contact 31d and the contact 32d positioned opposite to each other and the FPC or FFC as an inserted body is inserted, the contact 3 comes into contact with the contact portion such as the FPC to complete the electrical connection. At this time, the upper contact 31 and the lower contact 32 of the contact 3 both have a spring force on the contact portion 31c and the contact portion 32c with respect to the attachment fixing portion 31b and the attachment fixing portion 32b. have.
In the first embodiment, the contact 3 is composed of the upper contact 31 and the lower contact 32. In this way, by configuring the substrate connection portions 31a and 32a to be connected to the printed circuit board with different contact points in the vertical direction, Since it can be connected to each contact provided on both the front and back surfaces such as FPC or FFC which is an insertion object, more contacts can be provided than in the case of only the front surface. That is, the contact portion used in Conventional Example 1 and Conventional Example 2 can have twice as many contacts as a fork-shaped contact.

In the housing main body 2 in which the contacts 3 are arranged side by side, an insertion hole 23 is further drilled in the end portion on the left and right side surfaces on the upper surface. The insertion hole 23 penetrates from the upper surface of the housing body 2 into the insertion space 22 and is elongated from the front side (insertion port 21 side) of the housing body 2 to the back side. Further, the insertion holes 23 are formed so as to be located on both sides of the contact 3 group arranged in parallel in the insertion space portion 22.
Further, the housing main body 2 is provided with a rotation shaft projection 24 serving as a rotation center when the shell 4 is rotated on the insertion port side on each of the left and right side surfaces.

  The shell 4 is made of a thin plate-like metal plate, is installed so as to face the plane in which the insertion hole 23 of the housing body 2 is drilled, and is installed so as to be rotatable with the housing body 2. Therefore, the shell 4 is provided by bending the plate-like shell body 41 and both ends of the shell body 41, that is, both ends located on the left and right sides of the housing body 2 along the left and right surfaces of the housing body 2. It consists of a shell side portion 42. Further, the back surface side of the shell body 41 is bent toward the back surface side of the housing body 2 to form a shell back surface portion 41a. The shell body 41 is reinforced by the shell back surface portion 41a and the shell side portion 42 so as not to be easily distorted. Then, a rotation hole 43 that is rotatably engaged with the rotation protrusion 24 provided on the housing body 2 is formed in the end portion on the front side of the housing body 2 of the shell side portion 42. The shell 4 can be moved away from the housing body 2 by locking the turning hole 43 with the turning protrusion 24 of the housing body 2 and using it as a turning center. At this time, the rotation of the shell 4 is performed so that the back side of the shell 4 is separated from the housing body 2 as represented by a white arrow in FIG. In this embodiment, the center of rotation of the shell 4 is provided on the side surface of the housing body 2 on the side of the insertion port 21 so that when the shell 4 is rotated when the FPC or FFC is removed, the FPC or FFC rotates the shell 4. I try not to get in the way of letting it happen. However, the rotation protrusion 24 and the rotation hole 43 serving as the rotation center may be provided on the side surface other than the insertion port 21 side of the housing body 2.

The shell main body 41 is provided with a locking projection 44 at a position facing the insertion hole 23 of the housing main body 2 when the shell main body 41 is opposed to and in contact with the housing main body 2. The locking projection 44 is formed in a leaf spring shape by drilling a long U-shaped notch groove 45 drilled in the shell body 41 from the position of the locking projection 44 to the back side of the housing body 2. A leaf spring-like tip is bent and provided on the housing body 2 side. The locking projection 44 provided in this way is located at the tip of the foot 46 provided in the shape of a leaf spring, and is provided at a position where it can advance and retreat in the insertion hole 23. As shown in FIG. 5, the locking protrusion 44 is provided with an inclined contact portion 47 that inclines the insertion port 21 side of the housing body 2 and comes into contact with an inserted body such as an FPC.
By providing the locking projections 44 in this way, when the shell 4 is rotated about the rotation projection 24 as the rotation axis and separated from the housing body 2, the locking projections 44 are detached from the insertion holes 23, and the housing body 2 When it is positioned so as to be in contact with each other, the locking projection 44 is inserted into the insertion hole 23 and protrudes into the insertion space 22. For example, if the object to be inserted is an FPC, the tip of the FPC comes into contact with the inclined contact portion 47 when inserted from the insertion port 21, and the insertion of the FPC continues further. The component force pushes up the inclined abutting portion 47 against the leaf spring force on the base end side of the inclined abutting portion 47, and the FPC is further back so that the inclined abutting portion 47 gets over the surface of the FPC. It can be inserted into. As a result, the FPC can reach a predetermined specified insertion position.

  5 is a holddown. The hold-down 5 is formed by bending a plate-like body into a U-shape, and is provided at both left and right ends of the housing body 2. The hold-down 5 is fixed to the housing body 2 by positioning and fixing one of the U-shaped facing pieces within the end of the housing body 2, and the other facing piece forms a shell fixing portion 51. It is positioned away from the left (or right) side surface with a width much larger than the thickness of the shell side portion 42. A fixing projection 52 that slightly protrudes toward the housing body 2 is provided at the approximate center of the shell fixing portion 51. The hold down 5 provided in this way is configured so that the fixing protrusion 52 of the shell fixing portion 51 presses the shell side portion 42 when the shell side portion 42 of the shell 4 enters between the shell fixing portion 51 and the side surface of the housing body 2. By pressing the shell side portion 42 that has entered, the shell 4 is easily rotated so as not to be separated from the housing body 2. Of course, if the shell 4 is rotated by a force that resists the fixing force of the shell 4 due to the pressing force of the shell fixing portion 51, the shell main body 41 is separated from the housing main body 2, and the locking projection 44 is detached from the insertion space portion 22. Will be moved.

  The inserted body used for the connector 1 configured in this way is an FPC or FFC. The FPC will be described as an example. As shown in FIG. 4A, as shown in FIG. Are arranged side by side in the width direction of the FPC, and the contact FPC1 is provided on both sides of the FPC. Further, when the FPC is inserted into the connector 1 and the FPC contact FPC1 and the contact 3 are electrically connected to the proper insertion completion position, the FPC locking hole FPC2 is formed at the position facing the locking projection 44 at the FPC. Cut out to the side edge. As shown in FIG. 4B, the FPC locking hole FPC2 may be provided in a hole shape in the FPC instead of being provided in a notch shape. Further, by setting the locking position of the FPC locking hole FPC2 and the locking projection 44 of the connector 1 to the side edge side of the FPC from the FPC contact FPC1, even when the locking projection 44 gets over the FPC when the FPC is inserted. Since the locking projection 44 can enter the FPC locking hole FPC2 without contacting the FPC contact FPC1, the FPC contact FPC1 is not damaged, and the intrusion distance in the insertion direction of the FPC can be shortened. 1 can be reduced in thickness in the front-rear direction (from the insertion port 21 toward the back side).

In the connector 1 configured as described above, as shown in FIG. 6, the inclined contact portion 47 moves to the arrow A side as the FPC moves in the direction indicated by the arrow B, and the inclined contact portion 47 eventually becomes the FPC. And the FPC passes through the inclined contact portion 47 and further moves to the arrow B side, thereby entering the FPC locking hole FPC2. This position is a proper insertion position of the FPC.
Therefore, when the FPC is fixed to the connector 1, the operation can be completed simply by inserting the FPC from the insertion port of the connector 1.
Further, when the FPC is pulled out from the connector 1, the shell 2 is rotated to release the lock between the FPC lock hole FPC2 and the lock protrusion 44 of the FPC, and the lock protrusion from the FPC lock hole FPC2. 44 is released. In this state, the FPC is pulled out and removed from the insertion port 21.

Embodiment 2 of the present invention will be described below with reference to the drawings.
7 is a perspective explanatory view showing the second embodiment, FIG. 8 is a perspective explanatory view showing the shell rotation state of FIG. 7, and FIG. 9 is a perspective explanatory view showing the main body of the housing of the second embodiment. FIG. 10 is a perspective explanatory view showing a fixed shell of the second embodiment, and FIG. 11 is a perspective explanatory view showing a shell of the second embodiment.

The connector 1 shown in the second embodiment is substantially the same as the first embodiment. However, as shown in FIGS. 7 and 8, the housing body 2 of the connector 1 is formed of a main body 25 and a fixed shell 26, and FIG. As shown, a fixed shell 26 made of a metal plate like the shell 2 in the first embodiment is formed on a main body 25 integrally formed with a plurality of contacts 1 arranged side by side in the same manner as in the first embodiment. The housing body 2 in the first embodiment is formed by being fixed from above. And the connector 1 is comprised by providing the shell 4 on the surface of the fixed shell 26 similarly to Example 1. FIG.
That is, FIG. 9 shows an integrally molded main body 25. Unlike the first embodiment, the contacts 3 arranged side by side employ a single contact contact 33, and the intermediate portion constitutes an attachment fixing portion 33b. And fixed to the main body 25. One end extended from the mounting and fixing portion 33b of the single contact 33 forms a substrate connecting portion 33a, which extends from the insertion port side of the main body 25 and is located on the lower surface side from the insertion port 21 side of the main body 25. It is provided outside. Further, the other end side extended from the mounting and fixing portion 33b forms a contact portion 33c having a spring force, and a contact point 33d protruding upward is formed substantially at the center of the contact portion 33c. The single-contact contact 33 configured in this way has substantially the same shape as the lower contact 32 in the first embodiment.
The shell 4 in the second embodiment is the same as that of the first embodiment. However, when the shell 4 is rotatably attached to the housing body 2, the fixed shell 26 is attached to both ends of the shell back surface portion 41a located on the back side of the housing body 2. A locking piece 48 for locking is provided. The locking piece 48 is separated from the shell back surface portion 41a by the groove portion, and is provided with a spring force by being provided on the shell main body 41 in a cantilevered state.

As shown in FIG. 9, the main body 25 has a U-shape with the outer edge portion opening the insertion port 21 side by the side edge portion 25a and the back surface side edge portion 25b, and the center portion is pierced so that the contact fixing portion 25c is formed. And is formed of a polymer resin which is an insulator. Each side edge 25a of the main body 5 is formed with a shell steady stop groove 27 on the insertion port 21 side. The shell 4 is also provided with a steady stop piece 49 in accordance with the position of the shell steady stop groove 27. The steady-rest locking piece 49 can enter and be locked into the groove 27 from a position facing the shell steady-stop groove 27 in the closed state in which the shell 4 is positioned along the main body 25, and its tip is L Bend it over the character.
In the closed state in which the shell 4 is positioned along the main body 25, the whole of the steady rest locking piece 49 provided on the shell 4 enters the shell steady rest groove 27 and the steady rest locking piece 49 provided as described above. Further, in a state where the shell 4 is rotated and opened away from the main body 25, the leading end side of the steady-rest locking piece 49 enters the shell steady-stop groove 27 and is positioned. Accordingly, the position where the shell steady stop groove 27 and the steady stop locking piece 49 are provided is provided on the rotational center side of the shell 4 at a position where the locked state can be obtained when the shell 4 is open and closed. .
By providing the shell steady stop groove 27 and the steady stop locking piece 49 in this manner, when the shell 4 is in the closed state, the FPC or FFC is provided with a force in the removal direction. Due to the locking with the locking hole FPC2, the locking projection 44 serves as a fulcrum with the main body 25 when supporting the removal force and prevents the shell 4 from swinging in the lateral direction. . Similarly, even when the shell 4 is rotated and opened from the main body 25, the tip of the steady stop piece 49 is located in the steady stop groove 27. Prevent shakes from happening. The body 25 is formed integrally with a plurality of contacts 3 arranged side by side.
In Example 2, the movement of the shell 4 is restricted by the shell steadying groove 27 and the steadying locking piece 49, but in Example 1, the shell 4 is positioned along the housing body 2. In both the closed state and the state in which the shell 4 is rotated and opened away from the main body 25, the housing body 2 is provided with the hold down 5, so that the shell 4 is closed and opened. At any position in the state, the shell side portion 41 of the shell 4 is located in the gap between the shell fixing portion 51 and the side surface of the housing body 2 (in the opened state, part of the shell side portion 41 is located in the gap). Therefore, the shell fixing portion 51 prevents the shell 4 from swinging in the left-right direction.
Furthermore, the rotation center axis 43a instead of the rotation hole 43 is provided in the shell 4 at the position of the rotation hole 43 provided in the shell 4 shown in the first embodiment. The rotation center shaft 43a protrudes by bending the end portion on the side of the insertion port 21 of the shell side portion 42 toward the main body 25, that is, inward. The rotation center shaft 43 a is the rotation center of the shell 4.

Therefore, in the second embodiment, since the single contact 33 is adopted as the contact 3, in order to obtain a good contact pressure between the FPC contact FPC1 of the inserted FPC and the contact 3 as in the first embodiment. Requires a member that receives the spring force of the contact 33 d of the contact 3. Therefore, in the second embodiment, the fixing shell 26 is provided so as to cover the upper surface of the main body 25 and is fixed to the main body 25 by covering.
The fixed shell 26 is formed of a plate-like body, provided with a contact facing portion 26a that covers the upper surface of the contact fixing portion 25c of the main body 25, and left and right side edge portions 26b positioned on the outer sides of the side edge portion 25a and the back side edge portion 25b. The shell rear side edge portion 26c is bent and fixed to the main body 25, thereby opening the insertion port 21 and forming the insertion space portion 22 therein. Further, as shown in FIG. 8, solder fixing portions 26d are provided on the left and right side edge portions 26b and the shell back side edge portion 26c, and are fixed to the printed circuit board to which the connector 1 is attached by soldering.
Thus, by forming the solder fixing portion 26d of the fixed shell 26 and the board connecting portion 33a of the contact 3, the housing main body 2 formed from the main body 25 and the fixed shell 26 is fixed to the printed circuit board.

A rotation center hole 26g is formed in the left and right side edge portions 26b of the fixed shell 26. The position where the rotation center hole 26g is formed is the same as in the first embodiment. A rotation center shaft 43a of the shell 4 provided so as to cover the fixed shell 26 is rotatably fitted in the rotation center hole 26g. Therefore, in this embodiment, unlike in the first embodiment, the rotation center of the shell 4 is rotatably inserted into the rotation center hole 26g formed in the fixed shell 26 so that the rotation center shaft 43a protruding from the shell 4 can be rotated. Thus, the shell 4 can be rotated about the rotation center axis 43a.
Further, a through hole 26e is formed in the contact facing portion 26a of the fixed shell 26 at a position facing the locking protrusion 44 of the shell 4 that is rotatably locked. Therefore, the locking protrusion 44 of the shell 4 can be inserted into the through hole 26 e and positioned in the insertion space portion 22. Furthermore, a shell locking portion 26 f is provided on the rear side edge portion 25 b of the fixed shell 26. The shell locking portions 26f are formed so as to have a spring force by the notch grooves so as to be cantilevered in which only the contact facing portion 26a side is connected, and are provided at both ends in the width direction of the connector 1. When the shell 4 is rotated and positioned in contact with the fixed shell 26, the shell locking portion 26f is locked with a locking piece 48 provided on the shell 4, and the shell 4 is rotated and fixed shell. When moving away from 26, the positions of the shell locking portion 26f and the locking piece 48 are displaced and released by the rotational force against the spring force of the shell locking portion 26f and the locking piece 48.

In the second embodiment configured as described above, when the FPC is inserted into the insertion space portion 22 from the insertion port 21, the tip end portion of the FPC eventually comes into an inclined contact with the locking projection 44 positioned in the insertion space portion 22. It abuts on the portion 47. When the FPC continues to be inserted and the component force of the pressing force of the FPC becomes larger than the spring force of the foot 46, the locking projection 44 is displaced against the spring force of the foot 46, and the FPC is engaged. When the FPC contact point FPC1 of the FPC comes into contact with the contact point 33d of the contact 3 and reaches an appropriate position, the FPC engagement hole FPC2 and the engagement projection 44 are at the same position. Therefore, the locking projection 44 enters and locks into the FPC locking hole FPC2. As a result, the FPC is not easily detached from the connector 1.
In the second embodiment, since the contact 3 is the single contact 33, the inserted FPC is inserted between the fixed shell 26 on the upper surface side and the single contact 33 so that the contact 33d of the single contact 33 is provided. Good contact pressure with. Therefore, the gap between the contact 33d and the fixed shell 26 is set to be less than the thickness of the FPC. The FPC contact FPC1 is also provided only on the lower surface side because the contact 33d of the contact 3 is only on the lower surface side. The upper surface side is folded in contact with the fixed shell 26, and the fixed shell 26 is connected to the printed wiring board and the ground side by soldering, so that a good contact pressure can be obtained. Alternatively, a ground contact (not shown) may be provided to connect the FPC and the printed wiring board to the ground via the fixed shell 26.

  The present invention can be applied to a connector for electrically connecting an FPC or FFC, and can be used for both a ZIF type connector and a NON-ZIF type connector. In particular, when it is used for a ZIF type connector, when inserting FPC or FFC in the assembly process, a slight pressing force is required at the time of insertion. However, a shell for obtaining a good contact pressure with the contact after insertion is required. Opening and closing is unnecessary, and an FPC or FFC prevention mechanism can be provided. In addition, when used for a NON-ZIF type connector, it is also possible to provide a FPC or FFC retaining mechanism.

The perspective explanatory view seen from the front side upper part showing Example 1 of this invention The perspective explanatory view seen from the front lower part showing Example 1 FIG. 1 is a longitudinal cross-sectional explanatory diagram of a substantially central portion. Explanatory drawing showing the insertion part of FPC which is an insertion object Perspective explanatory view showing the locking projection part of the connector Explanatory drawing showing the contact state of FPC and a latching protrusion An explanatory perspective view showing the second embodiment. FIG. 7 is an explanatory perspective view showing the shell rotation state of FIG. FIG. 6 is an explanatory perspective view illustrating a housing body according to the second embodiment. Perspective explanatory view showing a fixed shell of Example 2 Perspective explanatory view showing the shell of Example 2 Cross-sectional explanatory drawing showing a conventional ZIF type connector Cross-sectional explanatory drawing showing a conventional NON-ZIF type connector

Explanation of symbols

FPC flexible printed wiring board FPC1 FPC contact FPC2 FPC locking hole 1 connector 2 housing body 21 insertion port 22 insertion space 23 insertion hole 24 rotating projection 25 body 25a side edge 25b back side edge 25c contact fixing part 26 fixing shell 26a Contact facing portion 26b Left right edge portion 26c Shell rear side edge portion 26d Solder fixing portion 26e Through hole 26f Shell locking portion 26g Rotation center hole 27 Stabilizing groove 3 Contact 31 Upper contact 31a Substrate connecting portion 31b Mounting fixing portion 31c contact portion 31d contact 32 lower contact 32a substrate connection portion 32b mounting fixing portion 32c contact portion 32d contact 33 single contact 33a substrate connection portion 33b attachment fixing portion 33c contact portion 33d contact 4 shell 41 shell body 42 shell Side 43 pivot hole 43a rotation center shaft 44 engaging projection 45 notched groove 46 foot portion 47 inclined abutment 48 engaging piece 49 bracing engagement piece 5 holddown 51 shell fixing portion 52 fixing protrusion

Claims (3)

In the connector that can form an insertion space portion that opens an insertion port in a long and thin shape, and a plurality of contacts are arranged in parallel in the insertion space portion, and an FPC or FFC can be connected,
The connector body that forms the insertion space portion is provided with an insertion hole penetrating from the surface to the insertion space portion,
A shell made of a plate-like body and attached along the surface in which the insertion hole of the connector main body is drilled, and a base end portion is provided as a rotation fulcrum, and is provided with a shell that is rotatably locked to the connector main body.
The shell is inserted into the insertion hole at a position attached along the connector main body, protrudes into the insertion space portion, is positioned outside the insertion space portion when the shell is rotated, and is pressed in the insertion hole. A connector characterized in that a locking projection is provided to be moved outwardly of the insertion hole. The connector body has anti-sway grooves on both ends of the connector body on the insertion port side, and the shell has anti-sway locking pieces that enter and lock into the anti-sway groove at positions attached along the connector body. 2. The connector according to claim 1, wherein the steady stop locking piece is provided so that the leading end side of the locking piece enters the groove even when the shell is rotated. The connector according to claim 1 or 2, wherein the locking protrusion provided on the shell is formed with an inclination on the side of the insertion port, and has a spring force that can move outward from the insertion port when pressed from the side of the insertion port.

Images