JP4357799B2 - Fast connection terminal - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a quick connection terminal.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a quick connection terminal that press-fits an S-shaped spring into a conductive housing and operates a release button attached to the housing to releasably clamp a lead wire between the inner surface of the housing and the S-shaped spring is well known. This housing is generally made by stamping and pressing a conductive metal plate.
[0003]
[Problems to be solved by the invention]
When attaching such a quick-connect terminal to a printed circuit board, a brazing leg that also serves as a contact extending from the housing is used. When punching out the conductive metal plate, the punching pattern is designed so that the legs are formed in association with the housing. In this case, the number of housings that can be manufactured from one conductive metal plate may be significantly reduced by providing the legs. In addition, if the leg is used only to make electrical contact between the housing and the printed circuit board, it can be made quite thin, but the housing is fixed to the printed circuit board, and the fixing is a release button. If it is necessary to withstand the force of manipulating the legs, it is necessary to increase the number of legs and the number of housings that can be manufactured from a single metal plate.
[0004]
In the present invention, the conventional quick-connect terminal is improved so that it can be firmly fixed to the printed circuit board and the number of housings that can be manufactured from one conductive metal plate can be increased as much as possible. Is an issue.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention is intended to accommodate S-shaped springs for clamping the lead wires inside each of a pair of conductive housings arranged opposite to each other and slidable with respect to each of the housings. This is a quick connection terminal capable of elastically deforming the spring from a clamped state to a released state with respect to the lead wire by a release button attached to the lead wire.
[0006]
In the quick connection terminal, the present invention is characterized as follows. Each of the pair of housings has a rectangular parallelepiped shape, and has side portions facing each other between the housing and the housing, and the side surface portions are connected to each other with a predetermined interval so as to be spaced apart and parallel to each other. The release buttons are slidably accommodated between the side portions, and each of the S-shaped springs is formed by deforming a long spring material into an S-shape in the length direction. The S-shaped height direction coincides with the slide direction of the release button and is arranged to be symmetric with respect to the release button, and one of the free ends extending in the S shape is the wherein the the inner surface of the side surface portion leads while pressed so as to clamp housed in the housing, and the one of said free end, from the inner surface of the side portions And while so it is possible to elastically deform to the release state, the and portion of the release button abuts possible pressing enters into the housing, also in the respective housing forming the cuboid, Both end portions in the sliding direction of the release button on the other side surface parallel to the side surface portion are cut open and bent toward the outside of the housing, so that they are separated from each other in the sliding direction of the release button. And at least four brazing conductive legs extending outwardly from each of the housings, and the release button being one of the two end portions in the direction of entry of the release button In this part, the S-shaped spring is partially exposed by opening the part.
In a preferred embodiment of the present invention, a lead wire insertion hole extending in the sliding direction is formed in the release button, and the lead wire that has entered the housing from the outside of the housing through the insertion hole has the S-shape. Clamping is possible between one of the free ends of the spring and the inner surface of the side portion.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The details of the quick connection terminal according to the present invention will be described below with reference to the accompanying drawings.
[0009]
1 and 2 are a perspective view of the quick-connection terminal 1 in use and an exploded perspective view of the quick-connection terminal 1, and the quick-connection terminal 1 in FIG. It is brazed with solder 46.
[0010]
The quick connection terminal 1 is formed symmetrically with respect to the line CC, and is located between the pair of housings 6 disposed oppositely across the line CC and the housings 6 and 6 on the line CC. And a pair of S-shaped springs 5 that are press-fitted into each of the housings 6. The housing 6 is formed by punching and bending a conductive metal plate, and is electrically connected through a connecting portion 8 formed of a part of the plate. The release button 7 is made of an insulating material, has a pair of guide holes 9, and can lead the lead wire 11 inserted into the guide holes 9 into the housing 6. In the housing 6, the lead wire 11 advances straight and is clamped by the S-shaped spring 5 and a part of the housing 6, and is electrically connected to the housing 6.
[0011]
The housing 6 is a substantially rectangular parallelepiped extending long along the line CC, and is parallel to the line CC, connected to the connecting portion 8, an outer wall 17 parallel to the inner wall 16, and an arrow. An end wall 18 positioned at the tip of the lead wire insertion direction indicated by E; a bottom wall 21 parallel to the printed circuit board 2; and a top wall 22 positioned above and parallel to the bottom wall 21; An opening 23 is formed by the side walls 16, 17, the bottom wall 21, and the top wall 22. The inner wall 16 and the outer wall 17 are longer than the end wall 18, and the outer wall 17 of the inner wall 16 and the outer wall 17 has both end portions 24 and 26 in the direction parallel to the line CC in FIG. And the portions 24 and 26 are bent outwardly of the housing 6 indicated by the arrow Y so as to be parallel to the bottom wall 21 to fix the quick connection terminal 1 to the printed circuit board 2. Legs 27 are formed. At least a pair of leg portions 27 are formed in each housing 6 so as to be separated from each other in the direction in which the line CC extends, and between the housings 6 and 6, the legs 27 extend in opposite directions with respect to the line CC.
[0012]
The S-shaped spring 5 shown in FIG. 2 is formed by bending a long metal plate having a width W into an S-shape or an inverted S-shape in the length direction, and an upper end portion and a lower portion of the S-shape. It has upper and lower free ends 31, 32 corresponding to the ends, a length L corresponding to the height, and a width M in a direction perpendicular to the length. The S-shaped spring 5 is accommodated in the housing 6 through the opening 23 from the direction of arrow D shown in FIG. The S-shaped spring 5 is in close contact with the inner surface of the housing 6 and is elastically deformed in the direction of the width M, and the upper free end portion 31 that is one of the free ends presses against the inner surface 16a of the inner wall 16. Yes.
[0013]
The release button 7 includes a central guide portion 41 extending along the line CC, and a pair of pressing arm portions 42 on both sides of the guide portion 41 and extending in parallel with the guide portion 41. A stopper portion 43 protruding upward in FIG. 2 is formed at the distal end portion of the guide portion 41, and a guide hole 9 penetrating the arm portion 42 is formed in the arm portion 42 in parallel with the line CC. An inclined surface 44 that is inclined in the same manner as the free end portion 31 of the S-shaped spring 5 is formed at the tip portion. There is a clearance of approximately the same size as the thickness of the inner wall 16 between the guide portion 41 and the arm portion 42, and when the guide portion 41 is inserted between the housings 6 and 6 from the direction of arrow E, the arm portion 42. Each enters the housing 6 while sliding with respect to the inner surface 16a of the inner wall 16 in each housing 6. The arm portion 42 that has entered is in a state in which the slope 44 is in contact with the free end portion 31 of the S-shaped spring 5 from the direction of arrow E, and in this state, the stopper 43 of the guide portion 41 is as shown in FIG. In addition, it contacts the connecting portion 8 on the near side in the direction of the arrow E from the direction opposite to the arrow E.
[0014]
When the release button 7 is slid in the direction of arrow E with the fingertip, the slope 44 of the arm portion 42 pushes the upper free end 31 of the S-shaped spring 5, and the upper free end 31 is moved to the inner surface 16 a of the inner wall 16. A clearance is made inside the inner surface 16a by being separated from the inner surface 16a. When the S-shaped spring 5 is in this state, that is, in the released state, the lead wire 11 inserted into the guide hole 9 from the direction of the arrow F moves straight above the housing 6 and is separated from each other. It enters the clearance between the free end 31 and the inner surface 16a of the inner wall 16, and further advances straight to enter between the S-shaped spring 5 and the inner surface 16a. Therefore, when the fingertip is removed from the release button 7, the upper free end 31 of the S-shaped spring 5 returns elastically toward the inner wall 16, and the lead wire 11 cannot be pulled out in cooperation with the inner wall 16. The clamp is clamped between the two.
[0015]
As shown in FIG. 1, the quick connection terminal 1 assembled in this way is soldered by solder 46 so as to be in electrical contact with a required portion of the printed circuit board 2, for example, the wiring 2a, etc., with the legs 27 as contacts. Attached.
[0016]
In general, in the operation of brazing the terminal, the flux may flow to the contact portion and hinder electrical contact at the contact. However, in the quick-connecting terminal 1 according to the present invention, brazing is performed in the vicinity of the outer wall 17. On the other hand, since the lead wire 11 and the housing 6 are brought into electrical contact with each other on the inner wall 16 far from the outer wall 17, there is no possibility that the flux flows to such a contact portion.
[0017]
Further, in the illustrated quick connection terminal 1, the leg portion 27 is formed by cutting out a part of the outer wall 17, so that the leg portion 27 can be manufactured from one conductive metal plate of the housing 6. There is no decrease in quantity. Such leg portions 27 are formed by at least both end portions 24 and 26 of the outer wall 17, and four or more quick connection terminals 1 can be formed as a whole.
[0018]
The leg 27 is formed from both end portions 24 and 26 of the outer wall 17 which is longer than the end wall 18 in the housing 6, and extends in the opposite directions with respect to the line CC. Therefore, the legs 27 are largely separated from each other, which may facilitate the brazing operation. Further, as is apparent from FIGS. 1 and 2, the quick connection terminal 1 that forms a substantially hexahedron as a whole is fixed to the printed circuit board 2 by the leg portions 27 located at the four corners of the surface facing the printed circuit board 2. The force when pressing the release button 7 is widely dispersed, and the quick connection terminal 1 does not easily come off the printed circuit board 2.
[0019]
【The invention's effect】
In the quick connection terminal according to the present invention, the both ends of the long side wall of the housing are cut open to form the brazing legs that also serve as the terminals. Therefore, the housing is manufactured to form the legs. This does not increase the area of the conductive metal plate. The lead wire clamp for electrical contact between the lead wire and the housing is performed at a location far from the legs to be brazed, so that the flux generated during brazing hinders the electrical contact. There will never be.
[Brief description of the drawings]
FIG. 1 is a perspective view of a quick connection terminal in use.
FIG. 2 is an exploded perspective view of a quick connection terminal.
[Explanation of symbols]
1 Fast connection terminal 5 S-shaped spring 6 Housing 7 Release button 11 Lead wire 16 Side surface (inner wall)
16a Inner surface 17 Side surface (outer wall)
24, 26 Both ends 27 Leg 31 Free end

Claims (2)

An S-shaped spring for lead wire clamping is housed inside each of a pair of conductive housings arranged opposite to each other, and the spring is released from a clamped state with respect to the lead wire by a release button slidable with respect to each of the housings. A quick connection terminal that can be elastically deformed,
Each of the pair of housings has a rectangular parallelepiped shape, and has side portions facing each other between the housing and the housing, and the side surface portions are connected to each other with a predetermined interval so as to be spaced apart and parallel to each other. The release button is slidably placed between the side portions,
Each of the S-shaped springs is formed by deforming a long spring material into an S shape in the length direction, and the height direction of the S shape is made to coincide with the sliding direction of the release button. The housing is arranged in such a manner that it is symmetrical with respect to the release button, and one of the free ends extending in an S shape is in pressure contact with the inner surface of the side portion so that the lead wire can be clamped. the housed, and to one of said free end portion is spaced from the inner surface of the side portion so as to be able to elastically deform to the release state, a portion of the release button is the It enters into the housing and abuts it so that it can be pressed.
Also in each of the housings forming the rectangular parallelepiped, by being bent toward cut open the sliding direction both end portions of the release button in the other side portion being parallel to the outside of the housing on the side surface portion, At least four brazeable conductive legs are formed that are spaced apart from each other in the sliding direction of the release button and extend outwardly from each of the housings , one of the two end portions The quick-connecting terminal according to claim 1, wherein the S-spring is partially exposed by opening a portion of the release button on the front side in the approach direction . The release button is formed with a lead wire insertion hole extending in the sliding direction, and the lead wire that has entered the housing through the insertion hole from the outside of the housing is one of the free ends of the S-shaped spring. The quick connection terminal according to claim 1, wherein the terminal can be clamped with an inner surface of the side surface portion.

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