JP4736099B2 - Connector, printed circuit board assembly, and connector fixing method - Google Patents

Description

  The present invention relates to a connector.

  FIG. 1 shows a connector 100 disclosed in Patent Document 1. The connector 100 includes a plurality of connection terminals 104 and a shell 105. The plurality of connection terminals 104 are fixed with an insulator and housed in the shell 105. A lead terminal 102 is connected to each connection terminal 104. Pawls 103 are provided on the lead terminals 102 at both ends.

  FIG. 2 shows the substrate 109 to which the connector 100 is attached. The substrate 109 is provided with a hole 107 and a hole 108 that communicate from the front surface to the back surface 109b. A wiring pattern 106 is provided on the back surface 109b. The lead terminal 102 provided with the pawl 103 is passed through the hole 108. The lead terminal 102 not provided with the pawl 103 is passed through the hole 107. Each lead terminal 102 is connected to the wiring pattern 106. When the pawl 103 is twisted and engaged with the substrate 109, the connector 100 is fixed to the substrate 109.

  Patent Documents 2 to 5 disclose other printed circuit board connectors.

Japanese Utility Model Publication No. 61-82373 JP 2000-3743 A JP 2000-3744 A JP 2000-3745 A JP 2000-3746 A

  An object of the present invention is to securely fix a connector to an object to be fixed.

  The connector by this invention comprises the connector main body provided with the connection terminal, and the fixing | fixed part which fixes a connector main body to a fixation target object. The fixing portion includes a base fixed to the connector body, a locking portion locked to the object to be fixed, and an elastic body that connects the locking portion to the base. When the elastic body is elastically deformed, the fixing portion expands and contracts so that the distance between the base portion and the locking portion changes.

  A printed circuit board assembly according to the present invention includes a connector and a printed circuit board. The connector includes a connector main body having a connection terminal and a fixing portion. The fixing portion includes a base fixed to the connector main body, a locking portion locked to the printed circuit board, and an elastic body that connects the locking portion to the base. When the elastic body is elastically deformed, the fixing portion expands and contracts so that the distance between the base portion and the locking portion changes.

  In the connector fixing method according to the present invention, the connector is fixed to an object to be fixed. The connector includes a connector main body provided with connection terminals, and a fixing portion that fixes the connector main body to an object to be fixed. The fixing portion includes a base portion fixed to the connector body, a locking portion, and an elastic body that connects the locking portion to the base portion. When the elastic body is elastically deformed, the fixing portion expands and contracts so that the distance between the base portion and the locking portion changes. The fixing method includes a step of locking the locking portion to the fixing target object.

  According to the present invention, the connector is securely fixed to the object to be fixed.

  With reference to the accompanying drawings, a connector and a method for fixing the connector according to an embodiment of the present invention will be described below.

Example 1
FIG. 3 shows the connector 1 according to the first embodiment of the present invention. The connector 1 is a lead type connector. The connector 1 includes a connector main body 10 and a fixing portion 20 that fixes the connector main body 10 to the printed circuit board 30. The fixed part 20 may be referred to as a fixed terminal 20. The connector body 10 includes a connection terminal (not shown). The printed circuit board 30 includes a wiring pattern (not shown). The connection terminal is connected to the wiring pattern. When another connector is connected to the connector 1, the connection terminal provided in the other connector comes into contact with the connection terminal provided in the connector main body 10. The printed circuit board 30 to which the connector 1 is attached may be called a printed circuit board assembly.

  The fixing portion 20 includes a base portion 21 fixed to the connector main body 10, a locking portion 23 locked to the printed circuit board 30, and an elastic body 22 that connects the locking portion 23 to the base portion 21.

  The fixing portion 20 expands and contracts so that the distance between the base portion 21 and the locking portion 23 changes when the elastic body 22 is elastically deformed. Since the elastic deformation of the elastic body 22 absorbs the thickness of the printed circuit board 30 and the dimensional tolerance in the fixing portion 20, the connector 1 is securely fixed to the printed circuit board 30.

  Hereinafter, the connector 1 according to the first embodiment will be described in detail.

  The connector body 10 includes side surfaces 10a on both sides. The two side surfaces 10a face in opposite directions. A fixing portion 20 is provided on each side surface 10a. The elastic body 22 includes a curved portion that is bent so that the concave side 22b faces the side surface 10a. The elastic body 22 includes a convex side 22a opposite to the concave side 22b. The locking portion 23 includes two warps 24 on the side (tip) far from the elastic body 22. A slit-shaped notch 25 is formed between the two warps 24.

  The printed circuit board 30 includes a first surface 30a to which the connector 1 is fixed and a second surface 30b on the opposite side of the first surface 30a. The printed circuit board 30 is provided with a through hole 30c leading from the first surface 30a to the second surface 30b.

  The warp 24 disposed at the tip of the locking portion 23 is inserted into the through hole 30c from the first surface 30a side and locked to the second surface 30b. Hereinafter, the direction in which the locking portion 23 (warping 24) is inserted into the through hole 30c is referred to as the insertion direction. The connector 1 includes a guide 26 that restricts the movement of the locking portion 23 perpendicular to the insertion direction.

  As shown in FIG. 4, the guide 26 includes a guide surface 26 a that faces the side surface 10 a with the locking portion 23 interposed therebetween. The side surface 10a is parallel to the insertion direction. In other words, the normal line of the side surface 10a is perpendicular to the insertion direction. Therefore, the movement perpendicular to the insertion direction of the locking portion 23 is restricted.

  As shown in FIG. 5, the warp 24 is inserted into the through hole 30c from the first surface 30a side to the second surface 30b side while applying a pressing force in the direction indicated by the arrow 51 to the convex side 22a. At this time, when the elastic body 22 is pressed toward the side surface 10 a, the elastic body 22 is elastically deformed so that the bending becomes shallow, and the fixing portion 20 extends along the insertion direction perpendicular to the printed circuit board 30. When the fixing portion 20 extends along the insertion direction, the warp 24 moves away from the base portion 21 along the insertion direction as indicated by an arrow 52. By extending the fixing portion 20, the thickness of the printed circuit board 30 and the dimensional tolerance in the fixing portion 20 are absorbed, and the warp 24 surely passes through the through hole 30c.

  The distance between the two warps 24 becomes narrow when passing through the through hole 30c, and expands after passing through the through hole 30c.

  When the warp 24 is passed to the second surface 30b side, the force applied to the elastic body 22 is removed.

  Then, since the elastic body 22 tries to return to the original shape, as shown in FIG. 6, the fixing portion 20 contracts along the insertion direction, and the warp 24 is locked to the second surface 30b. When the fixing portion 20 contracts along the insertion direction, the warp 24 approaches the base portion 21 along the insertion direction as indicated by an arrow 53. An arrow 53 indicates the reverse direction of the arrow 52.

  When the warp 24 is locked to the second surface 30b, as shown in FIG. 7, the locking surface 24a provided in the warp 24 contacts the second surface 30b in parallel. The locking surface 24a is perpendicular to the insertion direction. Here, the locking surface 24 a faces the direction of the arrow 53, and the second surface 30 b faces the direction of the arrow 52. Therefore, even if an external force such as an impact is applied to the connector 1 after fixing the connector 1 to the printed circuit board 30, the connector 1 is prevented from being lifted or detached from the printed circuit board 30. Therefore, when the flow soldering process is performed on the printed circuit board 30, the connector 1 is prevented from floating from the printed circuit board 30. In addition, since the 2nd surface 30b is a normal plane, fixation is made more reliably when the latching surface 24a is a plane.

(Example 2)
FIG. 8 shows a connector 1 according to Embodiment 2 of the present invention. The connector 1 includes a connector main body 10 having connection terminals, a fixing portion 20 that fixes the connector main body 10 to the connector 2, and a guide 26. The connector 1 is securely fixed to the connector 2 by the fixing portion 20. The fixing portion 20 is provided on the side surface 10 a of the connector main body 10. The side surface 10a, the fixing portion 20, and the guide 26 according to the present embodiment correspond to the side surface 10a, the fixing portion 20, and the guide 26 according to the first embodiment. In a state where the fixing unit 20 fixes the connector body 10 to the connector 2, the connection terminal provided in the connector body 10 and the connection terminal provided in the connector 2 come into contact with each other. The connector 2 includes a first surface 40a on the side to which the connector 1 is fixed and a second surface 40b on the opposite side of the first surface 40a. The connector 2 is provided with a through hole 40c leading from the first surface 40a to the second surface 40b. The first surface 40a, the second surface 40b, and the through hole 40c correspond to the first surface 30a, the second surface 30b, and the through hole 30c according to the first embodiment. The warp 24 disposed at the tip of the locking portion 23 is inserted into the through hole 40c from the first surface 40a side and locked to the second surface 40b. At this time, the locking surface 24a of the warp 24 comes into contact with the second surface 40b in parallel.

FIG. 1 is a perspective view of a connector related to the present invention. FIG. 2 is a back view of the substrate to which the connector of FIG. 1 is attached. FIG. 3 is a perspective view of the connector according to Embodiment 1 of the present invention. FIG. 4 is a cross-sectional view of the fixing portion of the connector according to the first embodiment. FIG. 5 shows a connector fixing method according to the first embodiment. FIG. 6 illustrates a connector fixing method according to the first embodiment. FIG. 7 shows the warpage and the arrangement of the printed circuit board when the connector according to the first embodiment is fixed to the printed circuit board. FIG. 8 is a perspective view of the connector according to the second embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 ... Connector 10 ... Connector main body 10a ... Side surface 20 ... Fixed part 21 ... Base part 22 ... Elastic body 22a ... Convex side 22b ... Concave side 23 ... Locking part 24 ... Warpage 24a ... Locking surface 25 ... Notch 26 ... Guide 26a ... guide surface 30 ... printed circuit board 30a ... first surface 30b ... second surface 30c ... through hole 40a ... first surface 40b ... second surface 40c ... through holes 51, 52, 53 ... arrow 100 ... connector 102 ... lead terminal 103 ... Pawl 104 ... Connection terminal 105 ... Shell 106 ... Wiring pattern 107, 108 ... Hole 109 ... Substrate 109b ... Back surface

Claims (4)

A connector body with connection terminals;
A fixing portion for fixing the connector main body to an object to be fixed ;
A guide and <br/>
The fixing part is
A base fixed to the connector body;
A locking portion to be locked to the fixed object;
An elastic body connecting the locking part to the base part,
The fixing portion expands and contracts so that the distance between the base portion and the locking portion changes when the elastic body elastically deforms ,
The fixing target object is provided with a through hole that leads from one side of the fixing target object to the other side,
The locking portion is inserted into the through hole from the one side and locked to the other side,
The guide is a connector that restricts movement perpendicular to the insertion direction to be inserted into the through hole of the locking portion . The connector body includes a side surface parallel to the insertion direction,
The fixing portion is provided on the side surface,
The connector according to claim 1, wherein the guide includes a guide surface facing the side surface with the locking portion interposed therebetween . The connector according to claim 2, wherein the elastic body is bent so that a concave side faces the side surface . The fixed object is a printed circuit board,
The printed circuit board includes a first surface disposed on the one side and a second surface disposed on the other side,
The locking portion includes a warp locked to the second surface,
The warping includes a locking surface that contacts the second surface in parallel.
The connector according to claim 1 .

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