JP2012022976A - Electrical connector for circuit board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector in which no displacement between components occurs by force acting in an anti-fitting direction, and which has a structure that can prevent breakage or deformation of a stationary portion of a connector connected to a substrate.SOLUTION: Between a contact piece support part 24 and an end portion 22 of a body 2, a shoulder 25 is formed to extend in a direction opposite to the installation direction D2 and contact a protruding portion 55 of an engagement component 5. When the engagement component 5 is moved along the installation direction D2 with respect to the body 2, the protruding portion 55 of the engagement component 5 and the shoulder 25 of the body 2 come into contact with each other. By the engagement between the shoulder 25 and the protruding portion 55, displacement of the engagement component 5 with respect to the body 2 can be prevented.

Description

  The present invention relates to an electrical connector for a circuit board, and in particular, the main body of the circuit board and other electrical components to be connected to each other are connected to each other so that the contact between the own contact and the conductor portion of the other electrical components can be connected. The present invention relates to an electric connector for a circuit board provided with an engaging member for maintaining.

  In an electrical connector having a pair of connectors for electrically connecting independent members generally having a plurality of conductors such as a cable and a circuit board, circuit boards, etc., both of the connectors are connected to each other. 2. Description of the Related Art There is known a connector device provided with engaging means for detachably attaching connectors to each other.

  Patent Document 1 relates to a certain type of electrical connector. “Each lock block 10 is integrally attached to mounting seat pieces 5 provided at both ends of the conductive shell 4, and this mounting seat portion 10 a. The first engagement element 10b serving as an engagement means with the mating connector 19 projecting integrally from the first and the second engagement element serving as a securing means to the wiring board 21 projecting integrally from the mounting seat portion 10a. 10c ".

  Further, Patent Document 2 relates to another type of electrical connector. “The main body 24 is made of an insulating material such as plastic, and a surface 30 placed on a circuit board (not shown) and other connection partners. And the surface 32 facing the electrical component is provided in a substantially parallel arrangement.

Japanese Patent Laid-Open No. 7-192813 JP-A-7-335333

  In the connector described in Patent Document 1, the lock block 10 is attached to the connector main body 1 by a force in the anti-fitting direction applied when the mating connector fitted in the insertion hole 2 of the connector main body 1 is extracted from the insertion hole. On the other hand, there is a possibility that a positional shift occurs in the anti-fitting direction, and rattling occurs between the two. In addition, due to the displacement, stress may be applied to the second engagement element 10c of the lock block 10 serving as a fixing means to the wiring board 21, and the second engagement element 10c may be damaged or deformed.

  Therefore, the present invention provides a connector having a structure in which a displacement between members due to a force in a counter-fitting direction does not occur and a fixing portion of the connector connected to the board can be prevented from being damaged or deformed.

  In order to achieve the above object, in one embodiment of the present invention, an electrically conductive electromagnetic shield member, an insulating main body at least partially covered by the electromagnetic shield member, and a row support on the main body are provided. A plurality of electrically conductive contacts arranged on both ends of the main body in the longitudinal direction, and electrically connected to the electromagnetic shield member and electrically connected to the substrate An electrical connector for a circuit board, wherein the engagement member includes an engagement portion engaged with an end portion in a longitudinal direction of the main body, an arm portion extending from the engagement portion, A latching portion extending substantially perpendicularly to the extending direction from the tip of the arm portion; and a projecting portion extending from the engaging portion in the mounting direction of the engaging member with respect to the main body. When the wearing member is attached to the main body The convex portion of the serial-engaging member has a shoulder abutting, to provide an electrical connector for a circuit board.

  In another embodiment of the present invention, an electroconductive electromagnetic shielding member, an insulating material, a main body at least partially covered by the electromagnetic shielding member, and a plurality of rows supported in a row by the main body. An electrically conductive contact; and a fastening member attached to both ends of the main body in the longitudinal direction and electrically connected to the electromagnetic shield member and electrically connected to the substrate. A method of manufacturing an electrical connector for a circuit board, comprising: moving the engagement member in a longitudinal direction of the main body while moving the engaging member in a mounting direction substantially perpendicular to a fitting direction of another electrical component to the connector. Engaging the engaging portion of the engaging member, and further engaging a convex portion extending from the engaging portion in the mounting direction of the engaging member with respect to the main body with a shoulder formed on the main body; The electromagnetic shielding member To provide a manufacturing method having the steps of attaching to the fitting direction relative to the serial body.

  According to the electrical connector for a circuit board according to one aspect of the present invention, the attachment of the engaging member to the main body is performed not in the connector fitting direction but in a direction substantially perpendicular to the fitting direction, and the shoulder portion of the main body. By engaging the convex portion of the engaging member, the displacement of the engaging member with respect to the main body is prevented, and deformation and breakage of the fixing portion of the engaging member are prevented.

  In the present invention, since the engaging member is attached to the main body in a direction substantially perpendicular to the connector fitting direction, the engaging member can be assembled with low pressure input or powerlessness.

1 is a perspective view of an electrical connector for a circuit board according to an exemplary embodiment of the present invention. It is the disassembled perspective view which expanded the engaging member vicinity of the connector of FIG. It is a perspective view which shows the example of 1 structure of the engaging member of a connector. It is the perspective view which looked at the engaging member of the connector from the direction different from FIG. It is a perspective view which shows the state before attaching an engaging member to a connector main body. It is a perspective view which shows the state after attaching an engaging member to a connector main body. It is the perspective view which looked at the state after attaching an engaging member to the connector main body from the direction different from FIG.

  FIG. 1 is a perspective view showing an electrical connector for a circuit board (hereinafter abbreviated as a connector) 1 according to an exemplary embodiment of the present invention, and FIG. 2 is an exploded perspective view in which the vicinity of an engaging member of the connector 1 is enlarged. It is. The connector 1 is made of an insulating material such as an insulating resin, and has a main body 2 having a fitting opening 21 into which other electric parts (not shown) can be fitted, and an electric such as a metal covering at least a part of the main body 2. An electromagnetic shield member 3 made of a conductive material and a plurality of contacts 4 made of an electrically conductive material such as metal and supported in a row on the main body 2. Each of the contacts 4 is electrically connected to a conductor on a circuit board (not shown) at one end 41 (see FIG. 7 described later), for example, by soldering, and is fitted into the opening 21 of the main body 2 at the other end 42. It is comprised so that it may be electrically connected to the conductor part of the other electric component joined. Further, at both ends of the main body 2 in the longitudinal direction, the connector 1 and the other electric parts are maintained in a connected state, and the anchoring member having a function of electrically connecting the electromagnetic shield member 3 to a grounded circuit board. A member 5 is provided.

  FIG. 3 is a component diagram showing a configuration example of the engaging member 5, and FIG. 4 is a component diagram of the engaging member 5 as seen from a direction different from FIG. 3. The engaging member 5 includes an engaging portion 51 that engages with the longitudinal end portion 22 (FIG. 2) of the main body 2, an arm portion 52 that extends from the engaging portion 51, and substantially perpendicular to the extending direction of the arm portion 52. The latch part 53 extended from the front-end | tip of the arm part 52 and the fixing | fixed part 54 which protrudes from the engaging part 51 are provided. In the exemplary embodiment, the anchoring member 5 is shaped as a substantially unitary member that can be manufactured by sheet metal working or die casting. In the illustrated embodiment, two engaging members 5 are arranged one at each longitudinal end of the main body 2, and each has one arm portion 52 and two latching portions 53 formed at the end of the arm portion 52. With.

  The engaging portion 51 of the engaging member 5 has a shape that is substantially U-shaped or U-shaped when viewed in the mounting direction D2 to the connector body 2, and more specifically, forms a U-shape or U-shape. Two opposing portions 511 and 512 that are opposed to each other, and a base portion 513 to which the opposing portions 511 and 512 are connected. The opposing portions 512 and 513 are configured so as to partially surround and hold the substantially rectangular parallelepiped end portion 22 of the main body 2. However, it is not necessary to press-fit with a large force in order to engage the engaging portion 51 with the end portion 22, and mounting with a low pressure input is possible. Alternatively, the engaging portion 51 and the end portion 22 may be in a so-called clearance fit relationship, and in that case, both can be engaged substantially without help. In the illustrated embodiment, the arm portion 52 extends from the base portion 513 of the engaging portion 51, and the fixing portion 54 extends from the tip of the facing portion 512.

  As shown in FIGS. 1 and 2, the arm portion 52 of the engaging member 5 is configured to protrude substantially vertically from the fitting port side surface 23 of the main body 2 when attached to the end portion 22 of the main body 2. The latch 53 extends from the tip of the arm 52 to the outside in the longitudinal direction of the connector, and is configured to be able to engage with the other electrical components. When the connector 1 is mounted on a circuit board (not shown), the fixing part 54 protruding from the engaging part 51 is electrically connected to a through hole formed on the circuit board and grounded by soldering or the like. It is configured. On the other hand, the engaging member 5 is in contact with or electrically connected to the electromagnetic shield member 3 in the assembled state as shown in FIG. Therefore, the electromagnetic shield member 3 is electrically grounded and can have a shielding effect against external noise and the like. The electromagnetic shield member has a function of electromagnetically shielding the inside of the connector 1 from external noise and the like.

  A female screw 514 is formed in the base portion 513 of the engaging portion 51, and a through hole 34 is formed in a portion of the electromagnetic shield member 3 corresponding to the female screw 514 at the time of assembly, and the main body 2 corresponding to the female screw 514 at the time of assembly. A through-hole 221 is also formed in the portion of the end 22 (see FIG. 2). Accordingly, it is possible to use a screw for preventing the other connector (not shown) that is fitted to the connector 1 from falling off, or a fixing screw for fixing the connector 1 to a circuit board (not shown).

  As shown in FIGS. 3 and 4, the engaging member 5 further has a convex portion or a stepped portion 55 extending from the engaging portion 51 in the mounting direction D2. The attachment direction D2 of the engaging member 5 is substantially perpendicular to the fitting direction of other electrical components to the connector 1 (D1 in FIG. 1) along the longitudinal direction of the connector 2. The convex portion 55 may be provided at any part of the engaging portion 51 as long as it extends in the mounting direction D2. However, as shown in FIGS. 3 and 4, one of the opposing portions (511 in the illustrated example) It may extend from the tip. In the exemplary embodiment, the lengths of the facing portions 511 and 512 along the fitting direction D1 are determined based on the thickness of the end portion 22 of the main body 2 in the D1 direction. Furthermore, the thickness of the end 22 of the main body 2 is determined based on the strength required for the main body 2 and the like.

  In the exemplary embodiment shown in FIGS. 3 and 4, the engaging member 5 further includes a convex portion or a step extending in the mounting direction D <b> 2 from the opposing portion 512 of the engaging portion 51 (the opposing portion where the convex portion 55 is not provided). Part 57. The convex portion 57 may be provided at any portion of the facing portion 512 of the engaging portion 51 as long as it extends in the mounting direction D2, but the same position as the convex portion 55 in the fitting direction D1 (same from the base portion 513). Distance). If it does in this way, when the force of a counter fitting direction acts on a connector, force will act equally on two convex parts, and can support this force more suitably.

  Next, a method for assembling (manufacturing) the connector 1 will be described with reference to FIG. As shown in FIGS. 2 and 5, the end portion 22 of the main body 2 is formed at both ends in the longitudinal direction of the contact support portion 24 that supports the contact 4. First, the engaging member 5 is moved toward the end portion 22 of the main body 2 along the mounting direction D2 substantially perpendicular to the fitting direction D1 so that the engaging portion 51 surrounds the end portion 22. Here, as shown in FIGS. 2 and 5, between the contact support portion 24 and the end portion 22, it extends in the direction opposite to the mounting direction D <b> 2 and contacts the convex portion 55 of the engaging member 5. A configured shoulder 25 is formed. Therefore, when the engaging member 5 is moved along the mounting direction D2, the projecting portion 55 of the engaging member 5 and the shoulder portion 25 of the main body 2 are in contact with each other as shown in FIG. In the movement of the engaging member 5 in the mounting direction D2, a large force required for normal press-fitting is not necessary.

  Here, the shoulder portion 25 is configured to be able to support at least a part of the force in the counter-fitting direction (the direction opposite to D1) acting on the engaging member 5. Specifically, the boundary surface 61 between the convex portion 55 and the shoulder portion 25 forms an angle substantially perpendicular to the fitting direction D1. Therefore, when another electronic component fitted to the connector 1 is pulled out from the connector 1, a force in the anti-fitting direction acts on the main body 2, and accordingly, the fixing portion 54 of the engaging member 5 is also counterfitted. Although a force in the opposite direction acts, the force acting on the engagement member 5 is received by the shoulder portion 25 and can be distributed to the entire connector. Generally, when an electronic component is pulled out from a connector, a force of 100 to 200 N may be applied to the connector, and in the conventional connector, the member corresponding to the main body and the member corresponding to the engaging member are displaced due to the force. There is a case. However, in the present invention, the engagement between the convex portion and the shoulder portion can prevent the displacement of the main body 2 and the engaging member 5 due to the force in the anti-fitting direction, and the engaging member 5 fixed to the substrate can be prevented. A large force is not applied to the fixing portion 54, and the fixing portion 54 is prevented from being damaged or deformed.

  In the exemplary embodiment, the shoulder portion 25 of the main body 2 is formed at the end in the thickness direction of the main body 2 because of its ease of manufacture. In this case, if the convex portion 55 of the engaging member is provided at the tip of the facing portion 511 as described above, the engaging portion 51 can surround the end portion 22 over the entire thickness direction, and is more stable. An engaged state is obtained.

  Further, the engaging member 5 may have one convex portion, but may further have a convex portion 57 as shown in FIGS. In this case, a shoulder portion or a step portion 26 that contacts the convex portion 57 is also formed on the main body 2 side, and the boundary surface 62 between the convex portion 57 and the shoulder portion 26 has an angle substantially perpendicular to the fitting direction D1. Eggplant. With such a configuration, the shoulder portion 26 obtains the same effect as that of the above-described shoulder portion 25, that is, receives a greater force in the anti-fitting direction and can distribute the force over the entire connector. .

  After the attachment member 5 is attached, the electromagnetic shield member 3 is attached to the main body 2 by being pushed in the fitting direction, and the assembly of the connector 1 as shown in FIG. 1 is completed. As shown in FIG. 2, a protrusion 27 is formed on the upper portion of the main body 2, while an engagement hole 31 that engages with the protrusion is formed in a portion of the electromagnetic shield member 3 corresponding to the protrusion 27. The falling off of the electromagnetic shielding member 3 can be prevented.

  Moreover, the electromagnetic shielding member 3 may have a drop-off prevention unit configured to prevent the engagement member 5 from dropping in the anti-mounting direction. In the illustrated example, the drop-off preventing portion is a tab-like member 32 extending substantially perpendicularly to the attachment direction D2 of the engaging member 5 from the longitudinal end portion of the electromagnetic shield member. When the electromagnetic shield member 3 is attached to the main body 2, the tab-like member 32 comes close to or abuts with a portion of the engagement member 5 on the side opposite to the attachment direction, and functions to prevent the engagement member 5 from falling off. Further, if an engagement hole 33 is formed in the tab-like member 32, and a protrusion 221 that engages with the engagement hole 33 is formed at a portion of the end portion 22 of the main body 2 corresponding to the engagement hole 33. Further, it is possible to more reliably prevent the electromagnetic shield member 3 from falling off.

  As shown in FIGS. 2 and 6, the main body 2 has a hook-shaped portion 28 (2 in the illustrated example) that is formed so as to approach or abut against the side portion 521 of the arm portion 52 when the engaging member 5 is attached. One). If it does in this way, it can prevent that the engaging member 5 rotates with respect to the main body 2 centering | focusing on the axis line parallel to mounting direction D2.

  In the above-described embodiment, the fixing portion 54 of the engaging member 5 is illustrated and described as being mounted in a through-hole format on a substrate (not shown). However, the shape of the fixing portion 54 is changed to be a surface mounting type. It is also possible to do.

DESCRIPTION OF SYMBOLS 1 Electrical connector 2 Main body 21 Fitting opening part 22 End part 25, 26 Shoulder part 3 Electromagnetic shielding member 32 Tab-like member 4 Contact 5 Engagement member 51 Engagement part 52 Arm part 53 Suspension part 54 Fixing part 55, 57 Convex

Claims (7)

An electrically conductive electromagnetic shielding member;
An insulating main body at least partially covered with the electromagnetic shielding member;
A plurality of electrically conductive contacts supported in a row on the body;
An electrical connector for a circuit board having an engaging member disposed at both ends in the longitudinal direction of the main body, and electrically connected to the electromagnetic shield member and configured to be conductively connected to the board. And
The engaging member includes an engaging portion that engages with a longitudinal end portion of the main body, an arm portion that extends from the engaging portion, and extends from the tip of the arm portion substantially perpendicular to the extending direction of the arm portion. A latching portion, and a convex portion extending from the engagement portion in the mounting direction of the engagement member with respect to the main body,
The electrical connector for circuit boards, wherein the main body has a shoulder portion that comes into contact with the convex portion of the engaging member when the engaging member is attached to the main body.   The circuit board electrical connector according to claim 1, wherein the mounting direction of the engaging member is substantially perpendicular to a fitting direction of another electrical component to the connector.   The circuit board electrical connector according to claim 1, wherein the engaging member has a fixing portion that protrudes from the engaging portion and is fixed to the substrate.   4. The circuit board electrical connector according to claim 1, wherein a boundary surface between the convex portion and the shoulder portion forms an angle substantially perpendicular to the fitting direction. 5.   5. The circuit board electrical connector according to claim 1, wherein the electromagnetic shield member has a drop-off prevention portion so as to prevent the engagement member from dropping in a direction opposite to the mounting direction. 6.   The circuit board electrical connector according to claim 5, wherein the drop-off prevention portion is a tab-like member extending substantially perpendicularly to the mounting direction from a longitudinal end portion of the electromagnetic shield member. An electrically conductive electromagnetic shielding member;
A main body made of an insulating material and covered at least in part by the electromagnetic shielding member;
A plurality of electrically conductive contacts supported in a row on the body;
An engaging member attached to both ends in the longitudinal direction of the main body, electrically connected to the electromagnetic shield member, and configured to be conductively connected to the substrate;
A method of manufacturing an electrical connector for a circuit board having:
While moving the engagement member in the mounting direction substantially perpendicular to the fitting direction of the other electrical components to the connector, the engagement portion of the engagement member is engaged with the longitudinal end of the main body, A step of engaging a protrusion extending from the engagement portion in the mounting direction of the engagement member with respect to the main body with a shoulder formed on the main body;
Attaching the electromagnetic shielding member to the main body in the fitting direction.

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