JPH0229666Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a SURF S mount connector, and in particular to a so-called zero insertion force type SURF S mount that eliminates the insertion/extraction force with mating electronic components to zero. Regarding connectors for

[Conventional technology]

In response to recent demands for smaller and thinner electronic devices, it is desired to reduce the space occupied by zero-insertion force connectors (hereinafter referred to as connectors) mounted on printed circuit boards and the number of components.

A conventional connector of this type is shown in FIG. That is, the connector 1 is composed of an insulator 3 having a cover body 2 and a recess 31 into which the protrusion 21 of the cover body 2 can be movably inserted, and a plurality of contacts 4 arranged in a row within the recess 31. The insulator 3 is formed of an insulating material into a rectangular parallelepiped shape, and has a recess 31 on one side in the fitting direction into which a protrusion 21 formed on the cover body 2 described later can be inserted. A plurality of contacts 4 made of an elastic conductive material are provided on the lower surface 33 side of the recess 31.
is installed. That is, the contact 4 has a tip 4
1 is located near the upper surface 32 near the opening side of the recess 31, and the contact portion 42 continuous to the tip 41 is located near the lower surface 3.
It protrudes towards the third side. Further, a fixing portion 43 following the contact portion 42 is formed in a hole 34 provided in the back wall 34 of the recess 31.
The terminal portion 44 is fixed by press-fitting or the like to the terminal portion a, and the terminal portion 44, which is led out through the back wall 34, is bent downward and soldered to the printed circuit board. Note that when no external force is applied to the tip end 41 of the contact 4, there is a gap greater than the thickness of the flat cable 5 between the contact portion 42 and the lower surface 33 of the recess 31. On the other hand, the cover body 2 is made of an insulating material and is molded into a rectangular parallelepiped plate shape, and a long hole 22 through which the flat cable 5 is inserted is bored in the center of the plate surface. Further, a protrusion 21 is provided on the plate surface of the cover body 2 along the elongated hole 22, and the tip end portions 41 of the contacts 4 arranged in the insulator 3 are disposed inside the tip of the protrusion 21.
A slope portion 23 that presses the is provided. In order to connect the flat cable 5 to the connector 1 having such a configuration, in the initial state, as shown in FIG. The inserted state is such that the inclined surface 23 does not press the tip 41 of the contact 4. Then, the tip of the flat cable 5 is passed through the elongated hole 22 of the cover body 2, and further inserted between the contact portion 42 of the contact 4 and the lower surface 33 of the recess 31. Next, while maintaining this state, the protrusion 21 of the cover body 2 is completely inserted into the recess 31. Therefore, the slope portion 23 of the protruding portion 21 presses the tip portion 41 of the contact 4 downward, causing the tip portion 41 to shift toward the lower surface 33, and the contact portion 42 also moves toward the lower surface 33.
side, ie to the flat cable 5. Therefore, the contact portion 42 of the contact 4 is connected to the flat cable 5.
The connector 1 comes into contact with the strip-shaped conductor portion 51 of the flat cable 5, and the connection between the connector 1 and the flat cable 5 is achieved.

[Problem that the invention attempts to solve]

However, in such a connector 1, since the insulator 3 is box-shaped, the dimension corresponding to the height direction of the connector 1 increases when mounted on a printed circuit board. Therefore, it was disadvantageous when trying to make electronic devices smaller and thinner.

Therefore, an object of the present invention is to provide a connector for surf S-mount which has a thin structure and which can be easily connected to electronic components.

[Means for solving problems]

According to the present invention, there is provided a plate-shaped insulator having a plurality of exposed contacts arranged and fixed on the upper surface thereof, and a plate-shaped insulator that covers the upper surface of the insulator and is slidable in a direction perpendicular to the direction in which the contacts are arranged. and a cover body that drives the contacts during assembly and sliding.

With the structure described above, the insulator does not need to be box-shaped as in the conventional case, but is formed into a plate shape, making it possible to reduce the thickness of the connector. In addition, after inserting the terminal section of an electronic component into the gap between the contact arranged on the top surface of the insulator and the top surface, the contact is driven by sliding the cover body along the top surface, and the terminal section of the electronic component, etc. Electrical contact is made with. Therefore, since the connection operation can be performed without inserting the terminal portion of the electronic component into the cover body, a connector for surf S mount with good operability can be obtained.

〔Example〕

An embodiment of the present invention will be described below based on the drawings. Figures 1 to 3 show the connector of the present invention, and the illustrated connector 6 includes an insulator 7 mounted horizontally on the top surface of a printed circuit board, a cover body 8 and an insulator 7 constituting the lid. The contact 9 is arranged along the upper surface of the contact 9.

The insulator 7 is formed of an insulating material into a rectangular plate shape, and has a plurality of grooves 72 arranged in parallel on its upper surface 71 in a direction perpendicular to the fitting direction. These groove portions 72 are open to the upper surface 71 of the insulator 7 and one side surface 73 of the insulator 7 in the fitting direction. Anti-float components 10 are fixed to the side surface 73 near both ends in the arrangement direction of the grooves 72 by press-fitting or the like. The anti-float component 10 is made of a metal material, and the leg portion 10a of the anti-float component 10 protruding from the side surface 73 of the insulator 7 has substantially the same dimensions and shape as the terminal portion of the contact 9. are doing. Further, flanges 76 are provided at both ends of the insulator 7 in the direction in which the grooves 72 are lined up so as to protrude in the same plane as the upper surface 71 of the insulator 7 . The end face of the insulator 7 below this flange 76 is
As shown in FIG.
7a, a convex portion 77b, and a convex portion 77c are spaced apart and integrally protruded. That is, the convex portion 77a and the convex portion 77
A concave portion 78a is between the convex portion 77b and the convex portion 77b.
A recessed portion 78b is formed between each portion c. By engaging projections 87 provided on the cover body 8, which will be described later, in the recesses 78a and 78b, the cover body 8
can be prevented from detaching from the insulator 7. Furthermore, when a terminal of an electronic component to be connected to the connector 6 (hereinafter referred to as a mating terminal) is inserted, the connector 6 is brought into contact by engaging the protrusion 87 of the cover body 8 with the recess 78a or 78b. position (see Figure 1b) and an open position (see Figure 1a). The cover body 8 is formed of an insulating material into a rectangular plate shape, and side walls 82 are vertically provided on inner wall surfaces 81 at both ends in a direction orthogonal to the sliding direction. A flange portion 83 projects inward from the end of the side wall 82 that is far from the inner wall surface 81, and the flange 76 of the insulator 7 slides into a groove 84 formed by the flange portion 83 and the inner wall surface 81. Can be inserted freely. Further, a slope portion 86 is formed on one side surface 85 of the cover body 8 in the sliding direction so as to correspond to the contact 9 disposed on the insulator 7 . Note that the end face of the flange 83 of the cover body 8 is provided with a protrusion 87 that engages with the recesses 78a and 78b of the insulator 7.
is provided protruding near the side surface 85. On the other hand, the contact 9 is made by punching out a conductive material having spring properties and then bending the punched material. That is, the fixing part 91 is fixedly fixed to the insulator 7.
, a terminal part 92 that is continuous from one end of the fixed part 91 and led out from the insulator 7, and a contact piece 93 that is continuous from the other end of the fixed part 91 and extends after being bent into a crank shape. . A tip 93a that curves upward is formed at the tip of the contact piece 93.
A contact portion 93b that curves downward is provided approximately midway between the fixing portion a and the fixed portion 91.

Next, to incorporate the contact 9 into the insulator 7,
With the protruding side of the tip 93a of the contact 9 facing upward, the contact 9 is inserted into the groove 72 with the terminal 92 first, and the fixing part 91 is inserted into the hole 75 provided through the closed end 72a of the groove 72. Fix it. The terminal portion 92 protruding from the hole 75 is bent downward at a substantially right angle from the vicinity of the base, and then further outward so that the lower surface of the terminal portion 92 is flush with the lower surface of the leg portion 10a of the anti-float component 10. Can be bent. As described above, the contact piece 93 of the contact 9 accommodated in the groove 72 is displaced in a direction away from the bottom surface 72b of the groove 72 by its own elastic force. Therefore, the tip 93a of the contact piece 93 protrudes from the upper surface 71 of the insulator 7, and the gap between the contact portion 93b and the bottom surface 72b of the groove 72 is set to be larger than the plate thickness of the mating terminal to be inserted. ing. Next, in order to attach the cover body 8 to the insulator 7, the inner wall surface 81 of the cover body 8
is directed downward, and the side surface 85 on which the inclined portion 86 is formed is positioned toward the rear of the insulator 7, that is, toward the side surface from which the terminal portion 92 of the contact 9 protrudes. Next, by fitting the groove 84 of the cover body 8 into the flange 76 of the insulator 7 and inserting it in the direction of the arrow X in FIG.
It comes into contact with the convex part 77c, and further rides over the top of the convex part 77c and engages with the concave part 78b. Therefore, the cover body 8 does not easily separate from the insulator 7.

The thus configured connector 6 connects the terminal portions 92 of the contacts 9 and the lower surfaces of the leg portions 10a of the anti-floating component 10 to the pads (not shown) of the printed circuit board 12.
Also, a solder connection is made in close contact with a fixing pad (not shown) in a superimposed manner. By soldering and fixing the anti-lifting component 10 to the printed circuit board 12, it is possible to prevent the connector 6 from being twisted up when a mating terminal is inserted into the connector 6.

Next, in order to insert the mating terminal into the connector 6 and make the connection, first connect the protrusion 87 of the cover body 8 with the insulator 7.
The cover body 8 is in the open position where it is engaged with the recess 78b.
Set. That is, in the open position, as is clear from FIG. The contact portion 93b and the bottom surface 7 of the groove portion 72
2b, a gap is maintained in which the mating terminal can be easily inserted. Therefore, insert the mating terminal through the groove 72 opened in the side surface 73 of the insulator 7,
Contact portion 93b of contact 9 and bottom surface 7 of groove 72
Insert it into the gap between it and 2b. Thereafter, by further sliding the cover body 8 on the insulator 7 in the direction of arrow The cover body 8 comes into contact with the convex portion 77a and is fixed at the contact position shown in FIG. 1b. Cover body 8 like this
In the process of moving from the open position to the contact position, the tip 93a of the contact 9 touches the inclined part 8 of the cover body 8.
6 and receives a downward force. Therefore, the contact piece 93 including the tip portion 93a moves toward the bottom surface 72b of the groove portion 72, and eventually the contact portion 93b of the contact piece 93 and the mating terminal come into contact with a certain contact force and a connection is established. achieved.

In addition, the connector 6 provides a click feeling due to the change in the operating force of the cover body 8 that occurs when the protrusion 87 of the cover body 8 passes over the convex part 77b of the insulator 7 and switches to engage with the recesses 78a and 78b. It's becoming like that.

FIG. 3 shows the state of contact between the connector 6 and the electronic component 11 of the present invention.

To pull out the lead terminal 11a of the electronic component 11 from the connector 6 in this state, the cover body 8 is moved in the direction opposite to the direction of arrow What is necessary is just to set it to the open position which fits into the recessed part 78b. In the process of moving the cover body 8 to the open position, the contact piece 93 of the contact 9 returns to its tip portion 93 due to its own elastic return force.
a is shifted upward while being guided by the inclined portion 86 of the cover body 8. Accordingly, the contact portion 93b of the contact piece 93 also separates from the lead terminal 11a, and the electrical connection is severed, allowing the electronic component 11 to be easily pulled out from the connector 6.

In this manner, the connector 6 of the present invention slides the cover body 8 so as to cover the upper surface 71 of the insulator 7, and drives the contacts 9 disposed on the upper surface of the insulator 7 to connect the electronic component 11. Can be attached and detached. In this case, to connect the electronic component 11 to the connector 6,
As shown in the conventional example, since the lead terminal 11a can be directly inserted into the insulator 7 without going through the cover body, the attachment/detachment work is easy, and the insulator 7 is not box-shaped as in the conventional example but has a plate shape. Therefore, the connector 6 could be made thin. Further, the cover body 8 can be fixed in the contact position and the open position by engaging the projections 87 with the recesses 78a and 78b of the insulator 7. Further, when switching the position, a click feeling is obtained due to the change in the operating force generated on the cover body 8, so that the switching can be performed reliably. Furthermore, since the direction of movement of the cover body 8 when driving the contact is from the fixed part 91 side of the contact 9 to the tip part 93a side, buckling is less likely to occur in the contact, improving contact reliability with the lead terminal 11a. can do.

In the embodiment, an example was described in which an electronic component 11 with a lead terminal 11a such as an IC package was connected.
For example, by removing each rib 74 forming the groove 72, the flat cable 5 shown in the conventional example can also be connected. Further, the contact 9 may be attached to the insulator 7 by integrally fixing it by insert molding.

[Effect of idea]

As is clear from the above description, the connector of this invention is different from conventional connectors of this type because the insulator is not box-shaped but is plate-shaped with contacts exposed on the top surface. It has a thinner shape,
This was advantageous in making electronic components smaller and thinner. In addition, it is possible to reliably select connection or disconnection with the mating terminal by simply sliding the cover attached to the top surface of the insulator, which has a simple structure, excellent operability, and excellent contact reliability with the mating terminal. We can provide connectors for surf-s mounts.

[Brief explanation of the drawing]

Figures 1a and b show a surf-s mount connector that is an embodiment of this invention, Figure a is a vertical side view showing the open state, Figure b is a vertical side view showing the contact state, and Figure 2a is a vertical side view showing the contact state. , b and c are a front view, a side view, and a bottom view, FIG. 3 is a vertical side view showing the fitted state of electronic components in the connector of the invention, and FIG.
Figures a and b are longitudinal sectional side views showing a conventional example. 6; Connector for surf S mount, 7; Insulator, 71; Top surface, 8; Cover body, 9; Contact.

Claims (1)

[Scope of utility model registration request] The contact comprises a plate-shaped insulator, a plurality of strip-shaped contacts arranged in parallel on the upper surface of the insulator, and a cover body assembled to the insulator so as to be movable over the contacts in a direction in which the contacts extend. a fixed part fixedly supported on one side of the insulator; a contact piece extending from the fixed part to the other side with a predetermined distance from the upper surface of the insulator; and a contact piece extending from the fixed part to the other side of the insulator. The contact piece has a surface mount terminal extending outward on one side, the tip of the contact piece is curved upward, and the middle part has a contact part that is curved convexly toward the upper surface of the insulator. When the cover body is moved from the fixed part side to the tip side of the contact, the tip part of the contact piece is pressed and driven by the cover body to the upper surface side of the insulator, and the contact part and the A surf-s mount connector characterized in that a mating terminal is sandwiched between the top surface of an insulator and a mating terminal.