KR100531938B1 - Connector - Google Patents

Abstract

In the connector which consists of the small socket 1 and header 2 used for mobile devices, such as a mobile telephone and a digital camera, it arrange | positions on the header 2 side to the contact 4 arrange | positioned at the socket 1 side. A contact convex portion 44 for sliding contact with the post 6 is provided, and a leaf spring portion 42 for generating contact pressure when the contact convex portion 44 contacts the post 6 is provided. In addition, the contact portion 61 and at least a part of the contact portion 61 in which the contact convex portion 44 of the contact 4 is in sliding contact when the post 6, the socket 1, and the post 2 are coupled to each other are included in the contact portion 61. The recessed part 63 is formed so that it may be. Even if foreign matter is attached to the contact convex portion 44 of the contact 4 on the socket 1 side or the contact part 61 of the post 6 on the header 2 side, the contact convex portion 44 is the contact portion 61. The foreign matter adhered to the concave portion 63 at the time of sliding the) phase, the possibility that the foreign matter is caught between the contact convex portion 44 and the contact portion 61 is greatly reduced.

Description

Connector {CONNECTOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector provided with a socket and a header for electrically connecting circuit boards, electronic components, circuit boards, and the like, for example, in a portable device such as a mobile phone or a digital camera.

Background Art Conventionally, connectors for connecting a plurality of circuit boards on which electronic components are mounted have been put into practical use. In particular, in mobile devices such as cellular phones, miniaturization and thinning of connectors are required by miniaturization and thinning of devices. On the other hand, due to the high functionality of the device, the mounting density of electronic components on a circuit board becomes high, the number of arrangement of contacts constituting the connector increases, and the width and arrangement pitch of each contact become very narrow. In a foldable cellular phone, the circuit board on which the electronic component is mounted is divided into two or more with the hinge portion as a boundary, and a flexible circuit board is used in the hinge portion to connect the circuit boards. The use of connectors for electrically connecting electronic components and circuit boards is increasing.

The connector which connects these circuit boards is comprised from the socket mounted on one circuit board, and the header mounted on the other circuit board, and a connector is electrically connected by combining a socket and a header.

For example, the conventional connector disclosed in Japanese Patent Laid-Open No. 2002-008753 is described with reference to FIG. 20 illustrates a state in which the socket 100 and the header 200 are coupled.

The socket 100 is formed of an insulating resin, and includes a socket body 100 having an insertion groove 111 into which the header 200 is fitted, and a plurality of pairs of metals held on both sides of the insertion groove 111, respectively. And a contact 120. The contact 120 has a terminal portion 121 surface-mounted on a circuit board by soldering, a holding portion 122 having a substantially U-shaped cross section, and pressed into both sides of the recess 111, and holding portion 122. ) Is provided with a leaf spring portion 123 formed by bending an extended portion of the () in a substantially U shape on the side opposite to the terminal portion 121. The leaf spring part 123 can be bent in the left-right direction in FIG. In addition, the leaf spring 123 is provided with a contact convex portion 124 formed by bending so as to protrude on the side opposite to the holding portion 122.

The header 200 is formed of an insulating resin, the header body 210 formed at the same height as the depth of the insertion groove 111 of the socket body 110 of the socket 100 and both sides of the header body 210. A plurality of pairs of metal posts 220 held in each part are provided. The post 220 has a terminal portion 221 surface-mounted on a circuit board by soldering, and a contact portion 222 that is bent so as to be substantially orthogonal to the terminal portion 221 and held along the side of the header body 210. do. The post 200 itself is fixed integrally by insert molding so as not to bend in the left and right direction in FIG. 20, but penetrate through the flange portion 211 protruding outward from both side surfaces of the header body 220. In addition, a locking convex portion 223 is formed on a surface on which the contact convex portion 124 of the contact 120 in the contact portion 222 of the post 220 is in sliding contact.

When engaging the socket 100 and the header 200, the contact convex portion 124 of the contact 120 relatively contacts the engaging convex portion 223 of the post 220, and also the contact convex portion 124. ) Is to ride over the locking convex portion 223. At this time, since the leaf spring 123 of the contact 120 is elastically deformed, the load required to press the socket 100 and the header 200 to each other increases. When the contact convex portion 124 of the contact 120 passes over the locking convex portion 223 of the post 220, the leaf spring portion 123 of the contact 120 is restored by elasticity, and the socket 100 is closed. And the load required to press the header 200 together decreases. The operator obtains a feeling of click by such a sudden change in load.

In addition, even if a force is applied in a direction in which the socket 100 and the header 200 are separated in a state in which the socket 100 and the header 200 are coupled, the locking convex portion 223 of the post 200 contacts the contact 120. Because of the contact with the contact convex portion 124 of the () is generated a resistance, the socket 100 and the header 200 is difficult to fall.

By the way, if the foreign material is sandwiched between the contact convex portion 124 of the contact 120 and the contact portion 222 of the post 220 when the socket 100 and the header 200 are coupled, the contact 120 and the post 220 ) May cause a poor contact. The foreign matter causing the poor connection is mainly attached to the contact convex portion 124 of the contact 120 or the contact portion 222 of the post 220 before the socket 100 and the header 200 are coupled.

If the length of the contact portion 222 of the post 220 is sufficient, even if foreign matter is attached to the contact convex portion 124 of the contact 120 or the contact portion 222 of the post 220, the socket 100 and the header Foreign matter is pushed forward by the contact convex portion 124 by removing the contact convex portion 124 of the contact 120 slides on the contact portion 222 of the post 220 when the 200 is coupled The contact convex portion 124 and the contact portion 222 are not caught, and the possibility of poor contact between the contact 120 and the post 220 is greatly reduced.

However, the overall height dimension A in the state where the socket 100 and the header 200 are combined in order to increase the mounting density of the circuit board and to reduce the size (thin) of the mobile device (hereinafter, referred to as "load height"). Low connectors are desired. When the stacking height is lowered, the length of the contact portion 222 of the header 200 must be shortened, and foreign matter adhering to the contact convex portion 124 of the contact 120 or the contact portion 222 of the post 220 is not sufficiently removed. Therefore, the possibility of poor contact between the contact 120 and the post 220 is high.

In addition, the foreign matter pushed forward only by the contact convex portion 124 of the contact 120 contacts by the contact convex portion 124 of the contact 120 sliding on the contact portion 222 of the post 220. When the convex portion 124 passes over the locking convex portion 223 of the post 220, the convex portion 124 enters a gap formed between the contact convex portion 124 of the contact 120 and the contact portion 222 of the post 220. Interposed between the contact convex portion 124 of the contact 120 and the contact portion 222 of the post 220 to prevent contact between the contact convex portion 124 of the contact 120 and the contact portion 222 of the post 220. There is a possibility.

The present invention has been made to solve the above problems of the prior art, and an object of the present invention is to provide a connector which prevents a poor connection by foreign matter and improves the reliability of the electrical connection between the socket and the header.

In order to achieve the above object, a connector according to one embodiment of the present invention is arranged in a predetermined shape on a socket body molded into a predetermined shape by an insulating material, and a predetermined pitch on the socket body. A socket having a plurality of contacts or posts, the header body being shaped into a predetermined shape so as to be fitted to the socket body by an insulating material, and the plurality of contacts or posts on the header body, respectively; And a header having a plurality of posts or contacts arranged and held at the predetermined pitch so as to be electrically connected, wherein the contact includes a contact convex portion in sliding contact with the post, and the contact convex portion contacts the post. And a leaf spring for generating contact pressure when the post is in the socket It characterized in that, when coupled to the post the contact portion, and at least a portion thereof for adding the contact projections of the contacts in sliding contact with the concave portion formed to include the contact portion.

According to such a structure, when the contact convex part of a contact slides on the contact part of a post, the foreign material adhering to the contact convex part of a contact or the contact part of a post is pushed forward by the movement of the contact convex part of a contact, and the contact part of a post Enters into the recess formed in the. As a result, the possibility of foreign matter getting caught between the contact convex portion of the contact and the contact portion of the post is reduced. In addition, the contact may be provided in either the socket or the header, and the post may be provided in either the header or the socket.

The post may further have a locking convex portion provided upstream of the concave portion in a direction in which the contact convex portion slides on the contact portion when the socket and the header are engaged. In this case, even if a force is applied in the direction of separating the socket and the header by, for example, vibration, the socket and the header are less likely to fall because the locking convex portion provided on the post contacts the contact convex portion of the contact and prevents its movement. As a result, the reliability of the electrical connection between the socket and the header is improved.

(1st embodiment)

A first embodiment of the present invention will be described. The connector according to the first embodiment is composed of a socket 1 and a header 2. The structure of the socket 1 in 1st Embodiment is shown in FIG. 2 shows a state in which the socket 1 and the header 2 are coupled to each other.

As shown in Fig. 1, the socket 1 includes a substantially rectangular parallelepiped socket body 3 made of a synthetic resin molded article which is an insulating material. The socket body 3 is formed with an insertion groove 31 to form four sides of a substantially rectangular shape. A plurality of retaining grooves 33 are disposed on both side walls 32 in the longitudinal direction of the insertion groove 31, and the contacts 4 are held in each of the retaining grooves 33 by press-fitting. The central portion 34 surrounded by the insertion groove 31 and the insertion groove 31 engages with the recess 52 formed in the header body 5 to be described later and the side wall 51 (see FIG. 3), respectively.

The contact 4 is formed by bending the strip | belt-shaped metal plate which has elasticity (for example, the metal plate which gold-plated copper alloy, such as phosphor bronze) to predetermined shape. As can be seen by comparing Figs. 2 and 20, the contact 4 is basically the same shape as that of the conventional example. At one end of the contact 4, a terminal portion 43 surface-mounted on a circuit board by soldering is formed. The holding part 41 is formed in the center part in the longitudinal direction of the contact 4 so that it may have a substantially U-shaped cross section, and the substantially U-shaped cross section may be substantially orthogonal to the terminal part 43. On the extension of the end part on the opposite side to the terminal part 43 of the substantially U-shaped cross section of the holding | maintenance part 41, the leaf | plate spring part 42 which has a substantially U-shaped cross section on the opposite side to the terminal part 43 is formed. The leaf spring part 42 can be bent in the left-right direction in FIG. Moreover, the contact convex part 44 formed by the bending process is provided in the front-end | tip of the leaf | plate spring part 42 so that it may protrude on the opposite side to the holding part 41. As shown in FIG. That is, the contact 4 of the socket 1 is in a direction intersecting in the direction in which the socket body 3 moves relative to the header body 5 when the socket 1 is engaged with the mating header 2. In this case, the terminal portion 43, the holding portion 41, the leaf spring portion 42 and the contact convex portion 44 are continuously and integrally formed by bending.

By forming the holding part 41, the terminal part 43 is made to the outside of the socket body 3 via the side wall 32 of the socket body 3, and the contact convex part 44 is made to the inside of the insertion groove 31. Can be placed on. As shown in FIG. 2, the surface 4a of the terminal portion 43 soldered to the circuit board is located outside the outer surface 3a of the body 3. In addition, the leaf spring portion 42 is located inside the insertion groove 31 of the socket body 3, so that even when the socket 1 is mounted on the circuit board, the leaf spring portion 42 has a wiring pattern or the like on the circuit board. There is no contact, and a short circuit can be prevented. In addition, the flux and solder when soldering the terminal portion 43 to the circuit board are interposed between the terminal portion 43 and the contact convex portion 44 by the side wall 32 of the socket body 3. Can be prevented from being attached to the

The width of the retaining groove 33 of the socket body 3 is substantially the same as the width of the retaining portion 41 of the contact 4, and the width of a portion (not shown) of the retaining portion 41 is maintained. Since it is slightly wider than the width of 33, the holding portion 41 is pressed into the holding groove 33 so that both sides of the holding portion 41 and the inner wall of the holding groove 33 are brought into close contact with each other, and the contact 4 is connected to the socket body. Adheres to (3).

As an example, the width of the leaf spring portion 42 of the contact 4 is 0.2 mm, the width of the terminal portion 43 is 0.15 mm, the plate thickness is 0.1 mm, and the arrangement pitch is 0.4 mm. In addition, the number of arrangement | positioning of the contact 4 is about 10-30. In addition, as shown in FIG. 10, the width of the contact convex portion 44 is almost equal to the width of the contact portion 61 of the post portion 6 of the post 6 of the header 2 described later (the contact portion 61 of the post 6). Have the same width] so as to be narrower, for example, about 0.15 mm.

It is difficult to bend or press-fit such minute contacts 4 one by one. Therefore, according to the arrangement pitch and the number of arrangements of the contacts 4 in the socket 1, one metal plate (not shown) is processed into a comb shape, and all the contacts 4 on one side are simultaneously press-molded. The holding portion 41 of the contact 4 is simultaneously pressed into the holding groove 33 of the socket body 3. In addition, after the contact 4 is press-fitted into the socket 1, the terminal portion 43 of the contact 4 is detached from the metal plate.

Next, the structure of the header 2 which comprises the connector in 1st Embodiment is shown in FIG. 3 and FIG. 3 is a front view of the header 2, and FIG. 4 is a side view thereof.

As shown in FIG. 3, the header 2 is provided with the substantially rectangular parallelepiped header body 5 which consists of a synthetic resin molded article which is an insulating material. Since the said recessed part 52 is formed in the center part of the header body 5, the header body 5 is formed as a frame body which comprises four sides of substantially rectangular shape. On both side walls 51 in the longitudinal direction of the header body 5, a plurality of posts 6 are integrally arranged along the longitudinal direction by insert molding. The header 2 is fitted in the center portion 34 surrounded by the insertion groove 31 and the insertion groove 31, which are almost entirely except for the terminal portion 62 of the post 6, provided in the socket body 3. do.

The post 6 of the header 2 is formed by bending a strip-shaped metal plate having elasticity (for example, a metal plate coated with a copper alloy such as phosphor bronze) to a predetermined shape, but the contact 4 of the socket 1 It does not require elasticity. In addition, in this description, the contact which does not require elasticity is specifically called post.

The width, arrangement pitch and arrangement number of the posts 6 of the header 2 are the same as the width, arrangement pitch and arrangement number of the contacts 4 of the socket 1. In addition, since the post 6 of the header 2 does not need elasticity, the material and plate | board thickness do not necessarily need to be the same as the material and plate | board thickness of the contact 4 of the socket 1, Even if it changes suitably good. In addition, similar to the contact 4 of the socket 1, one metal plate (not shown) is processed into a comb shape according to the arrangement pitch and the arrangement number of the posts 6 in the header 2, and all of the one side The posts 6 are simultaneously press-molded and inserted into the mold beforehand when the header body 5 is injection molded. Moreover, after integrally insert molding with the header body 5, the terminal part 62 of the post 6 is removed from the metal plate.

Next, the detailed shape of each post 6 is demonstrated. 5 is a perspective view showing an appearance configuration of the post 6. 6A-6E are side, top, front, rear and bottom views of the post 6, respectively. FIG. 7 is a cross-sectional view taken along the line B-B in FIG. 6B. FIG. FIG. 8 is a partially broken perspective view showing a cross-sectional shape of the recess 63 formed in the post 6, and FIG. 9 is a cross-sectional view along the line A-A in FIG. 6A.

As shown in each drawing, at one end of the post 6, a terminal portion 62 surface-mounted on a circuit board by soldering is formed. On the extension of the terminal part 62, the contact part 61 in which the contact convex part 44 of the contact 4 of the socket 1 contacts slidingly orthogonally with respect to the terminal part 62 is formed. The end portion 66 on the side opposite to the terminal portion 62 of the contact portion 61 is bent to draw a large arc on the side opposite to the terminal portion 62 so as to follow the shape of the top portion of the side wall 51 of the header body 5.

The contact portion 61 of the post 6 is provided with a locking convex portion 64 protruding outward from the surface in contact with the contact convex portion 44 of the contact 4, and a concave portion 63 recessed inwardly. . Moreover, the vicinity of the recessed part 63 and the locking convex part 64 among the contact parts 61 is formed so that it may become wider than another part. Specifically, in the recess 63, for example, as shown in FIG. 2, the header 2 is fitted to the inner side of the insertion groove 31 provided in the socket body 3 of the socket 1 [ In the socket 1 and the header 2 coupled state] at least a part of the recess 63 is a contact protrusion of the contact 4 so that the contact protrusion 44 faces the opening of the recess 63. The position is set such that 44 is included in the contact portion 61 in sliding contact. Further, the locking convex portion 64 is located on the upstream side of the concave portion 63 in the direction in which the contact convex portion 44 slides on the contact portion 61 when the socket 1 and the header 2 are engaged with each other. Moreover, it is provided in the position which does not interfere with the contact convex part 44 in the state which the socket 1 and the header 2 couple | bonded. By setting the positions of the concave portion 63 and the locking convex portion 64 in this manner, the locking convex portion 64 is smoothly prevented from interfering with the movement of the contact convex portion 44 of the contact 4 with the socket 1. The header 2 can be combined.

In the vicinity of the contact portion 61 of the terminal portion 62, a holding recess 65 having a thickness thinner than other portions is formed. As described above, since the post 6 is inserted at the time of injection molding of the header body 5, the synthetic resin forming the flange 51 is introduced into the holding concave portion 65 and solidified, so that the post 6 It is difficult to pull out from the header body 5. The holding recess 65 may be omitted, provided that sufficient strength can be ensured.

7, the locking convex portion 64 is slightly smaller than the midpoint of the total height H1 of the post 6 based on the surface 62a of the terminal portion 62 soldered to the circuit board. It is installed at a high position (H2> H1 / 2 when height is H2). In the direction in which the contact convex portion 44 of the contact 4 slides on the contact portion 61 of the post 6, the downstream end of the locking convex portion 64 is in contact with the socket 4 of the post 6. The convex portion 44 is erected at a right angle to the contact surface 61a in sliding contact. On the other hand, the vicinity of the upstream end part of the locking convex part 64 becomes a gentle inclined surface 64a so that the contact surface 61a may approach gradually.

The recess 63 is, for example, a direction in which the contact convex portion 44 of the contact 4 slides on the contact portion 61 of the post 6, as can be seen from FIGS. 7, 8, 9 and the like. It is formed along the height direction of the post 6 so that the cross section of the post 6 may become substantially V-shaped in the width direction orthogonal to. The two inclined surfaces which form the substantially V-shaped cross section of the recessed part 63 are represented by 63a, respectively. In addition, in 1st Embodiment, the cross section of the recessed part 63 does not necessarily need to be substantially V-shaped, and other shapes, such as circular arc shape, substantially U shape, and substantially U shape, may be sufficient as it.

Here, the dimension of the opening of the recessed part 63 in the width direction of the post 6 is made smaller than the dimension of the width direction of the contact convex part 44 of the contact 4, as shown in FIG. In the process of fitting the header 2 into the insertion groove 31 of the socket 1, the contact convex portion 44 of the contact 4 is recessed due to the elastic force of the leaf spring 42. The contact surface 61a of the contact portion 61 of the post 6 is contacted so as to cover the 63.

11A and 11B show a process of fitting the header 2 into the insertion groove 31 of the socket 1. FIG. 11A shows a state where the engaging convex portion 64 of the post 6 of the header 2 and the contact convex portion 44 of the contact 4 of the socket 1 are in contact with each other, and FIG. The state of 2) is pressed down until it contacts the bottom face of the insertion groove 31 of the socket 1, and is shown. As can be seen by comparing FIG. 11A with FIG. 11B, the concave portion 63 formed in the contact portion 61 of the post 6 is located in and around the contact convex portion 44 of the contact 4. Formed.

Moreover, in order that the part which contacts the latching convex part 64 of the post 6 and the part which contacts both sides of the recessed part 63 of the contact convex part 44 of the contact 4 may not overlap. The dimension of the locking convex part 64 in the width direction of the post 6 is set so that it may become slightly smaller than the dimension of the opening of the recess 63. As shown in FIG.

According to the above configuration, even if foreign matter is attached to the contact convex portion 44 of the contact 4 or the contact portion 61 of the post 6 before the socket 1 and the header 2 are engaged with each other, When the contact convex part 44 slides on the surface of the contact part 61 of the post 6, the attached foreign material can be dropped inside the recess part 63, and the recess part 63 is not formed. Compared with the case where it is not, there is a lower possibility that foreign matter gets caught between the contact protrusion 44 and the contact portion 61. That is, poor contact between the contact 4 and the post 2 due to foreign matter can be prevented, and contact reliability can be improved. Moreover, since the recessed part 63 is formed in the range which the contact convex part 44 of the contact part 61 slides, the recessed part 63 is located in the position away from the range which the contact convex part 44 of the contact part 61 slides. ), Foreign matters pushed out by the contact convex portion 44 can be more reliably dropped into the recesses 63.

When a force is applied in the direction in which the header 2 is pulled out of the socket 1, as shown in FIG. 11A, between the contact convex portion 44 of the contact 4 and the locking convex portion 64 of the post 6. Since the contact force is generated by contact, the header 2 is less likely to fall from the socket 1 even if the connector 1 is subjected to vibration or the like. Also, when the header 2 is coupled to the socket 1, the contact convex portion 44 of the contact 4 contacts the locking convex portion 64 of the post 6, but the upper end side of the locking convex portion 64 is provided. Since the inclined surface 64a is formed in the contact surface 44 of the contact 4, the contact convex portion 44 slides over the inclined surface 64a and rides over the engaging convex portion 64 of the post 6. Therefore, the resistance at the time of coupling the header 2 to the socket 1 becomes smaller than the resistance at the time of removing the header 2 from the socket 1.

In addition, as mentioned above, the part which contacts the latching convex part 64 of the post 6 of the contact convex part 44 of the contact 4, and the part which contacts both sides of the recessed part 63, Since the width | variety of the locking convex part 64 of the post 6 is made narrower than the width of the recessed part 63 so that it may not overlap, the height direction of the locking convex part 64 and the post 6 of the post 6, for example. The foreign matter adhering on the extension of the contact 4 is pushed out by the contact protrusion 44 when the contact protrusion 44 of the contact 4 slides on the surface of the contact portion 61 of the post 62. It enters into the recessed part 63. In addition, foreign matter adhering to portions other than the locking convex portion 64 and its extended phases is brought into contact with the convex portion 44 when the contact convex portion 44 of the contact 4 passes over the locking convex portion 64 of the post 6. Since the portion 44 passes therethrough, there is little possibility that the foreign matter is caught between the contact convex portion 44 of the contact 4 and the contact surface 61a of the contact portion 61 of the post 6. As a result, the reliability of the electrical connection of the contact 4 of the socket 1 and the post 6 of the header 2 can be improved.

In addition, the modification of 1st Embodiment is shown to FIG. 12, FIG. 13A-FIG. 13E, and FIG. 12 is a perspective view showing an appearance configuration of a modification of the post 6. 13A to 13E are side, top, front, rear and bottom views of the post 6, respectively. 14 is a cross-sectional view taken along the line C-C in FIG. 13B.

As can be seen from the drawings, in this modified example, the locking convex portion 64 is omitted from the post 6 arranged on the header 2 side. As such, when the locking convex portion 64 is omitted from the contact portion 61 of the post 6, the press 6 of the post 6 is easier to be compared with the above example, while the connector 1 receives vibration or the like. It is easy to fall slightly from the header (2) and the socket (1). However, since the recessed part 63 is formed, the foreign material pushed out by the contact convex part 44 can be dropped to the recessed part 63 more reliably, and the contact 4 and the header of the socket 1 are prevented. The reliability of the electrical connection of the post 6 of (2) can be improved.

(2nd embodiment)

Next, 2nd Embodiment of this invention is described, referring FIG. FIG. 15 shows a state where the contact convex portion 44 of the contact 4 on the socket 1 side is in contact with the contact portion 61 of the post 6 on the header 2 side.

As can be seen in comparison with FIG. 10 in the first embodiment, a surface of the contact convex portion 44 of the contact 4 on the socket 1 side that faces the post 6 on the header 2 side. Is a convex curved surface 44a that protrudes toward the post 6 side. By making the contact convex portion 44 have such a shape, the intermediate portion in the width direction of the contact convex portion 44 enters the inside of the concave portion 63 formed in the contact portion 61 of the post 6, and the convex curved surface. 44a slide-contacts each inclined surface 63a, respectively. In addition, since the other structure is the same as that of the said 1st Embodiment, the description is abbreviate | omitted.

Thus, the contact 4 is made into the surface which opposes the post 6 of the contact convex part 44 as the convex curved surface 44a, and the inclination surface 63a which sliding-contacts with the convex curved surface 44a is made into the plane, and manufacture of the contact 4 is carried out. The process is slightly complicated, but has the following advantages.

First, when the contact convex part 44 slides on the part except the recessed part 63 of the contact part 61 of the post 6, the top point (the width direction of the contact convex part 44) of the convex curved surface 44a. Central portion of the contact portion is in contact with the contact portion 61, foreign matter attached to the contact convex portion 44 of the contact 4 or the contact portion 61 of the post 6 is the only convex surface 44a of the contact convex portion 44 Is pushed out near the apex. On the other hand, after the contact convex part 44 passes through the locking convex part 64 of the contact part 61 of the post 6, and enters the concave part 63, the peripheral part of the convex curved surface 44a becomes a concave part ( It contacts the inclined surface 63a of 63. That is, among the contact convex portions 44 of the contact 4, the part which pushes the foreign material and the part which are electrically connected with the post 6 are different, and the foreign material temporarily falls off inside the recess 63 temporarily. Even if it remains near the top of the contact convex portion 44, the possibility that the contact 4 and the post 6 cause contact failure due to the presence of foreign matter is greatly reduced.

Second, the convex curved surface 44a of the contact convex portion 44 as compared with the configuration of the first embodiment in which the contact convex portion 44 of the contact 4 and the contact portion 61 of the post 6 are in contact with each other in parallel plane. ) And the contact area between the inclined surface 63a of the recess 63 are significantly small. When the pressing force by the elasticity of the leaf spring part 42 of the contact 4 is made constant, the contact pressure increases by the extent that a contact area is small. As a result, the reliability of the electrical connection of the contact 4 and the post 6 improves. As described above, when the foreign material is pushed by the vicinity of the top of the convex curved surface 44a of the contact convex portion 44, the contact pressure increases, so that the contact convex portion 44 or the post 6 of the contact 4 is increased. Foreign matter adhering to the contact portion 61 of) can be reliably dropped into the recess 63.

(Third embodiment)

Next, 3rd Embodiment of this invention is described, referring FIG. 16, FIG. 17, and FIG. FIG. 16 shows a state where the contact convex portion 44 of the contact 4 on the socket 1 side is in contact with the contact portion 61 of the post 6 on the header 2 side as in FIG. 15. 17 and 18 each show a modification of the shape of the opening of the recess 63 formed in the contact portion 61 of the post 6.

As can be seen from FIG. 16, a surface of the contact convex portion 44 of the contact 4 on the socket 1 side that faces the post 6 on the header 2 side protrudes to the post 6 side. It is set as the convex curved surface 44b. Compared with the structure of 2nd Embodiment shown in FIG. 15, the convex curved surface 44b shown in FIG. 16 is set so that protrusion amount may be smaller than the convex curved surface 44a shown in FIG. have. In the second embodiment, the convex curved surface 44a is in contact with the inclined surface 63a. In the third embodiment, the convex curved surface 44b is in contact with the edge 63b of the opening of the recess 63.

As shown in FIG. 17, the opening of the recessed part 63 formed in the contact part 61 of the post 6 is trapezoid formed so that the width | variety becomes narrower so that it is closer to the locking convex part 64, or as shown in FIG. As described above, the closer to the locking convex portion 64, the more trapezoidal the width is formed. In addition, the cross section of the recessed part 63 in the width direction is substantially V-shaped. The other structure is the same as that of the said 1st or 2nd embodiment.

Thus, the manufacturing process of the post 6 becomes a little complicated by trapezoidal opening of the recess 63 formed in the contact part 61 of the post 6, but the following advantages are added to the effect of the said 2nd Embodiment. Has

The intermediate part in the width direction of the contact convex part 44 enters inside the recessed part 63 formed in the contact part 61 of the post 6, and the convex curved surface 44b slides in each inclined surface 63a, respectively. When contacting, the contact position of the convex curved surface 44b of the contact convex part 44 and the inclined surface 63a of the recessed part 63 changes. Therefore, the inclined surface 63a of the concave portion 63 of the convex curved surface 44b of the contact convex portion 44 of the post 6 as compared with the case of the second embodiment where the width of the concave portion 63 is uniform. ), The foreign matter adhering to the contact convex portion 44 is more easily removed because the range of contact with the c) increases.

(4th Embodiment)

A fourth embodiment of the present invention will be described with reference to FIG. 19. 19 is a cross-sectional view illustrating a state in which the header 2 is coupled to the socket 1. Compared with the first embodiment shown in FIG. 2, a contact 4 having a post spring that does not require elastic deformation on the socket 1 side and elastically deforms on the header 2 side 4 is provided. ) Is placed. Thus, even if the relationship of the contact 4 and the post 6 is changed, since the recessed part 63 is formed in the contact part 61 of the post 6, the effect similar to the case of the said 1st Embodiment is acquired. It goes without saying that the features of the second or third embodiment may be combined.

This application is based on Japanese Patent Application No. 2002-268459, the contents of which are to be incorporated into the present invention as a result by referring to the specification and drawings of the patent application.

In addition, although this invention is fully described by embodiment with reference to attached drawing, it is clear for those skilled in the art that various changes and a deformation | transformation are possible. Therefore, such changes and modifications are to be interpreted as included within the scope of the present invention, without departing from the scope of the present invention.

As described above, the present invention can provide a connector suitable for mobile devices such as mobile phones and digital cameras, and having high reliability in electrical connection between the socket and the header, regardless of the low loading height.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows the structure of a socket in the connector which concerns on 1st Embodiment of this invention.

It is sectional drawing which shows the structure in the state which combined the socket and the header in the connector which concerns on said 1st Embodiment.

3 is a front view showing the configuration of a header constituting the connector.

4 is a side view of the header.

5 is a perspective view showing an appearance configuration of a post disposed in the header.

6A to 6E are a side view, a plan view, a front view, a back view and a bottom view respectively showing the shape of the post.

7 is a side cross-sectional view of the post.

Fig. 8 is a partially broken perspective view showing a cross-sectional shape of a recess formed in the post.

Fig. 9 is a plan sectional view showing a cross-sectional shape of a recess formed in the post.

It is sectional drawing which shows the state which the contact convex part of the contact of a socket side contacts the contact part of the post of a header side.

It is a figure which shows the state which the convex part of the post of a header side, and the contact convex part of the contact of a socket side contact.

Fig. 11B is a view showing a state in which the top of the header is pressed into contact with the bottom surface of the insertion groove of the socket.

It is a perspective view which shows the external appearance structure of the post in the modification of the said 1st Embodiment.

13A to 13E are a side view, a plan view, a front view, a back view, and a bottom view, respectively showing the shape of the post in the modification.

14 is a side sectional view of a post in the modification.

It is sectional drawing which shows the state which the contact convex part of the contact of a socket side contacts the contact part of the post of a header side in the connector which concerns on 2nd Embodiment of this invention.

It is sectional drawing which shows the state which the contact convex part of the contact of a socket side contacts the contact part of the post of a header side in the connector which concerns on 3rd embodiment of this invention.

It is a front view which shows the shape of the opening of the contact part of a post, especially a recessed part in the said 3rd Embodiment.

It is a front view which shows the modification of the shape of the opening of the contact part of a post, especially the recessed part in the said 3rd Embodiment.

It is sectional drawing which shows the state which couple | coupled the header to the socket in the connector which concerns on 4th Embodiment of this invention.

20 is a cross-sectional view showing a state in which a header is coupled to a socket in a conventional connector.

Claims (11)

A socket body formed of an insulating material into a predetermined shape, and a socket having a plurality of contacts or posts arranged and held at a predetermined pitch on the socket body; A header body shaped into a predetermined shape to be fitted with respect to the socket body by an insulating material, and arranged at the predetermined pitch so as to face the plurality of contacts or posts on the header body, and to be electrically connected to each other; A header having a plurality of posts or contacts that are kept The contact has a contact convex portion in sliding contact with the post, and a leaf spring portion for generating contact pressure when the contact convex portion contacts the post, The post is a contact portion in which the contact convex portion of the contact is in sliding contact when engaging the socket and the post, a concave portion formed so that at least a portion thereof is included in the contact portion, and the contact convex portion in a direction in which the contact portion slides on the contact portion. It has a locking convex part formed in the upstream of the said recessed part, When the contact convex portion of the contact is over the locking convex portion of the post and the socket and the header are coupled, the contact convex portion of the contact engages the concave portion of the post, thereby elastically sliding contact with the contact portion. Characterized in that the connector. A socket body formed of an insulating material into a predetermined shape, and a socket having a plurality of contacts or posts arranged and held at a predetermined pitch on the socket body; A header body shaped into a predetermined shape to be fitted with respect to the socket body by an insulating material, and arranged at the predetermined pitch so as to face the plurality of contacts or posts on the header body, and to be electrically connected to each other; A header having a plurality of posts or contacts that are kept The contact has a convex portion protruding toward the post side in the width direction, a contact convex portion in which the convex portion is in sliding contact with the post, and a plate for generating contact pressure when the contact convex portion contacts the post. With spring part, The post is a contact portion in which the contact convex portion of the contact is in sliding contact when engaging the socket and the post, at least a portion thereof is formed to be included in the contact portion, and a concave portion having a substantially V-shaped cross section in the width direction, and the The contact convex portion has a locking convex portion formed on an upstream side of the concave portion in a direction of sliding the contact portion; The convex portion of the contact convex portion of the contact constitutes a substantially V-shaped cross section of the concave portion of the post, with the contact convex portion of the contact being beyond the locking convex portion of the post, and the socket and the header being engaged. Sliding contact connector. A socket body formed of an insulating material into a predetermined shape, and a socket having a plurality of contacts or posts arranged and held at a predetermined pitch on the socket body; A header body shaped into a predetermined shape to be fitted with respect to the socket body by an insulating material, and arranged at the predetermined pitch so as to face the plurality of contacts or posts on the header body, and to be electrically connected to each other; A header having a plurality of posts or contacts that are kept The contact has a convex portion protruding toward the post side in the width direction, a contact convex portion in which the convex portion is in sliding contact with the post, and a plate for generating contact pressure when the contact convex portion contacts the post. With spring part, The post may include a contact portion in which the contact convex portion of the contact is in sliding contact when engaging the socket and the post, a recess formed such that at least a portion thereof is included in the contact portion, and the contact convex portion in a direction in which the contact convex portion slides on the contact portion. Having a locking convex portion formed upstream of the recess, And the contact convex portion of the contact is in sliding contact with an edge of an opening of the recess of the post, with the contact convex portion of the contact being beyond the locking convex portion of the post, and the socket and the header being coupled to each other. delete delete delete delete delete delete delete delete