KR950002036B1 - C-type contact structure - Google Patents

Abstract

None.

Description

Type C contact structure of connector

1 is a front view of one embodiment of a C-type contact structure of the present invention.

2 is a cross-sectional view showing the attachment state of the C-type contact structure.

3 is a main portion perspective view showing an example of the connector configuration of the contact structure of the present invention.

4 is a sectional view showing the main parts of a state of insertion of a conventional C-type contact.

5 is a sectional view showing the principal parts of the conventional state of the C-type contact.

6 is a sectional view showing the main parts of a state of insertion of a conventional C-type contact;

7 is a sectional view showing the principal parts of the C-contact of FIG.

8 is a sectional view showing the main parts of an inserted state of a C-type contact according to another embodiment of the prior art.

9 is a sectional view showing the principal parts of the C-contact of FIG.

10 is a sectional view showing the essential parts of a conventional C-type contact having an inclined insertion structure.

* Explanation of symbols for main parts of the drawings

1: C type contact 2: Base part

3: large reinforcing wall 4: small reinforcing wall

5: tail portion 6: C-type contact portion

7: connector housing 8: printed circuit board

9: bed plate 20: notch

30: inverted portion 32: slope

40: reverse portion 42: slope

60: upper contact 62: lower contact

76: Start position 80: Edge contact

82: position hole 90: connection hole

The present invention relates to a socket contact structure of a zero insert force connector in a card edge connector or a flat cable connector. Particularly, the present invention realizes zero insertion input in an inclined insertion structure. C type contact structure of a zero insertion input connector.

Background Art [0002] Along with the spread of conventional personal computers and the like, there are many commercially available connectors equipped with an optional function expansion connector according to the user's needs. For example, card edge connectors of SIMMs (registered trademark of Wang Laloratories, USA) for expanding memory functions are installed in motherboards such as computers. Such card edge connectors or flat cable connectors include U.S. Patent Nos. 4,575,172, 4,713,013, 4,718,859, and 4,850,892, all of which insert a printed circuit board such as a SIMM into the connector. Alternatively, in order to realize a ZIF (Zero Insertion Force) or LIFP (Low Insertion Force) method with a low value, a C-type contact is used as a socket contact of the connector and at the same time, US Pat. It was suppressed for low assembly volume compared to that of other upright insertion structures.

4 and 5, the C-type contact 100 of U.S. Patent No. 4,575,172 is a so-called Tulip type, and roughly the connector housing 302 of the connector 300 provided on the mother plate 200. As shown in FIG. When the printed circuit board 400 is inserted in the direction of the arrow M with respect to the contact portion 304 formed at the center, as shown in FIG. 4, the edge contacts 402 and 404 of the printed circuit board 400 are C-type contacts 100. As shown in FIG. Lightly contacted each tip 110, 112). Next, when the printed circuit board 400 is rotated in the direction of the arrow N to move to the home surface 306, the front ends 110 and 112 of the C-type contact 100 come into contact with the edge contacts 402 and 404 as shown in FIG. At the same time a sufficient contact was obtained, it was electrically connected to an electrical circuit such as the mother board 200 through the contact surface 114.

In FIG. 6 and FIG. 7, the C-type contact 102 of U.S. Patent No. 4,713,013 is basically the same structure as shown in FIG. 4 and FIG. 5, but fixed latches 120 and 122 are provided to connect the housing to the housing. The point of inserting downward and fixing to the fixing holes 320 and 322 opened in 302 is different.

Type C contacts 104 of US Pat. No. 4,850,892 described in Figs. 8 and 9 have basically the same structures as those shown in Figs. 4 and 5, and between the mother plate 200 and the connector housing 30. The base piece 116 is installed at the same time, and the alignment means 307 for the printed circuit board 400 is provided.

C-type contact 106 of US Pat. No. 4,718,859 described in FIG. 10 has a structure similar to that shown in FIGS. 6 and 7, and the flat cable 402 is inclined by a ZIF method. Electrical connection to the 106, and fixed by the actuator 310 at the same time.

However, in the known examples shown in FIGS. 4 to 10, even if any one of the tip ends 110 and 112 of the C-type contacts 100, 102, 104 and 106 is deformed, the connecting piece 114 is deformed or changed so that the connecting piece 114 and the mother plate ( It has a bad effect on the weld between 200), resulting in deterioration of battery connectivity. In addition, in the known examples of FIGS. 4, 5, 8, and 9, the C-type contacts 100 and 104 can be inserted from above the connector housing 302, but the assembly is simple, but the stability is insufficient. In the known examples of FIGS. 6, 7, and 10, the C-type contacts 102 and 106 are inserted from the lower side of the connector housing 302, so that the assembly is difficult but the safety is excellent.

The problem of the present invention was that the conventional C-type contact structure is easy to cause poor connection at the welded part, and lacks any of good assembly and safety.

The present invention has been made to solve the above problems, and in having a long elongated base portion in the horizontal direction and a tail portion extending downwards of the base portion, a base penetrating the base portion and the connector housing installed in engagement with the inner bottom of the connector housing A portion and a pair of large and small reinforcement walls extending upwardly at both ends of the base portion and simultaneously with the outer surface engaged with the inner side surface of the connector housing, extending between the base portion and the large reinforcement wall, and crossing the upper portion of the base portion. C-type with a cantilever-shaped lower contact which is later raised along a small reinforcement wall, and an upper contact which extends independently above this lower contact and which is curved in the direction of the lower contact after rising along the large reinforcement wall. Characterized in having a contact portion. The purpose of maintaining good weldability with the mother board and providing easy assembly and a small assembly volume can be realized by the structure of the C-type contact having reinforcing means such as the reinforcing wall.

1 and 2 illustrate one suitable embodiment of the present invention.

This embodiment is a C-type contact 1 for forming a strip for press working by means of a mold, the base portion 2 being elongated in the horizontal direction and extending upward from both ends of the base portion 2. C provided between a set of large and small reinforcement walls 3 and 4, a tail portion 5 extending downward from a predetermined position of the base portion, and the base portion 2 and the large reinforcement wall 3; A mold 6, that is, one having an upper contact 60 and a lower contact 62 is provided. Then, the C-type contact 1 is integrally fitted to the inner surface of the connector housing 7 and fixed, and at the same time, the position of the two-dot chain line in the direction of the arrow B is inserted into the printed circuit board 8 inserted in the direction of the arrow A. ZIF (Zero Insertion Force) type electrical contact is realized by tilting at.

The connector housing 7 having the C-type contact 1 fixed thereon is installed on, for example, a base plate 9 of a personal computer (not shown), and the tail portion 5 is formed on the base plate 9. The mother plate 9 penetrates through the connection hole 90.

The base portion 2 of the C-type contact 1 is provided with a cutout portion 20 so that its bottom surface is in close contact with the inner bottom surface of the connector housing 7. Large and small sets of reinforcement walls 3 and 4 extend upward from the left side of the drawing of the base portion 2 and have a large reinforcement wall 3 and the base portion 2 having the same height on the left side of the connector housing 7. It consists of a small reinforcing wall 4 extending upward from the right side of the figure of the drawing and having the same height on the right side of the connector housing 7, and in close engagement with the inner side of the connector housing 7. ) Is prevented from falling off from the connector housing (7), and the stopper (70, 72) is provided at the corresponding position of the connector housing (7) at the same time as installing the inverting portions (30, 40) of the small projection shape. Then, between the cutouts 20 and the inverted sections 30 and 40 are right triangles, respectively, to form slopes 32 and 42, and the C-type contact 1 is sufficient for the connector housing 7. Stick to strength.

The tail portion 5 penetrates through the connection hole 90 of the mother plate 9 from the lower surface of the base portion 2 fixed to the connector housing by the slope portions 32 and 42.

The C-type contact portion 6 extends upward along the large reinforcement wall 3 from between the base portion 2 and the large reinforcement wall 3 and the upper end of the connector housing 7 on the side of the small reinforcement wall 4. The upper contact 60 reaching the upper end of the connector housing 7 of the large reinforcing wall 3 after bending in the direction of the small reinforcing wall 4 in the vicinity, and the base in the cantilever shape from the lower side of the upper contact 60. After crossing the upper part of the part 2, it is provided with the lower contact 62 extended upward along the small reinforcement wall 4 in circular arc shape. Accordingly, as shown in FIG. 2, when the printed circuit board 8 is inserted in the direction of the arrow A, it becomes ZIF (zero insertion force) and its centrality 82 is the center of the C-type contact portion 6. In accordance with, the deformation of the C-type contact portion 6 can be suppressed to a minimum, and at the same time, the printed circuit board 8 is conducted in the B direction so that the edge contact 80 is sufficiently in contact with the C-type contact portion 6. Even when the deformation of the C-type contact portion 6 is absorbed into the connector housing 7 through the slopes 32 and 42, the tail portion 5 is not deformed, and the tail portion 5 and The housing contact portion between the mother plate 9 can be kept in a good connection state.

3 shows an example of the connector housing 7 according to the present invention, wherein the C-type contact 1 is inserted into the contact groove 74 of the connector housing 7 from above, and then the C-type connecting portion 6 Since the upper contact 60 and the lower contact 62 are protruded, when the printed circuit board 8 is inserted in the direction of the arrow A in the ZIF manner, the alignment column 76 of the connector housing 7 is the printed circuit board ( When the insertion position is aligned with the positioning hole 82 of 8) and the positioning column 76 is inserted into the positioning hole 82, the edge contact 80 is formed by the inclined insertion structure. 6) Electrically connected with sufficient connection. In addition, the fixed support piece 78 in the figure is installed to fix the connector housing 7 to the mother plate 9 (see FIG. 2).

As described above, the C-type contact structure of the present invention can be easily inserted by the ZIF method, and at the same time, the tail portion in which deformation or variation occurring in the C-type contact portion is fused to the mother plate by a large and small set of reinforcing walls. Since the transmission is prevented in advance, the electrical connection between the tail portion and the mother plate can be maintained in a good state. And this design C type contact can be inserted into the upper side of the connector housing to be mounted and excellent in assemblability, and can provide a small assembly volume by the instructor insertion structure is high commercial use value.

Claims (2)

A C-type contact of a Zero Insertion Force connector for molding a strip for press processing into a mold, the connector having a long and thin base portion extending horizontally and a tail portion extending downward from a predetermined position. A base having a lower surface engaged with the inner bottom of the housing; A tail portion penetrating the connector housing; A set of reinforcing walls of small and large, each extending upwardly from both ends of the base portion and at the same time the outer surface is engaged with the inner side surface of the connector housing; And a C-type contact portion having a cantilever-shaped lower contact rising along the base portion and the large reinforcing wall and an upper contact extending above the lower contact and curved along the large reinforcing wall and then curved in the direction of the lower contact. Type C contact structure of a connector with a zero insertion force. The reinforcement according to claim 1, wherein the C-type contact structure substantially matches the height of the reinforcement wall having a small height of the lower contact, substantially corresponds to the height of the reinforcement wall having a large height of the upper contact, and at the same time, a reinforcement point having a small bending point of the upper contact. A C-type contact structure of a connector, substantially matching the height of the wall, and substantially coinciding with the center line of the printed circuit board into which the center of the arc drawn by the C-type contact portion is inserted.