JP3407460B2 - Electrical connector - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock piece incorporated in a main body for selectively selecting a locked state and an unlocked state with respect to a connector to be connected. A slider is externally slidably fitted to the main body, and the slider slides to a position at which the lock piece takes the unlocked state, and returns from that position to a position at which the lock state is taken. Electrical connector which is urged as described above. FIG. 9 shows a conventional example of an electric connector. In the figure, the electrical connector 80 is connected to the wiring board 10.
0, etc., the female fitting portion 9 of the connector 90 fixed to
1 is provided with a substantially L-shaped main body composed of a lateral side portion 81 having a male fitting portion 81A to be fitted into the vertical side portion 1 and a vertical side portion 82 continuously provided so as to be substantially orthogonal to the lateral side portion 81. I have. The electric connector 80 projects outward from the male fitting portion 81A of the lateral side portion 81 and engages with a locking concave portion 96 provided in the female fitting portion 91 of the connector 90 to be connected. A linear (straight type) lock piece 86 provided with a locking projection 86a to be stopped is incorporated, and the locking projection 86a of the lock piece 86 is fitted to the male fitting portion 81A of the lateral side portion 81. A cylindrical slider 88 having a tip pressing portion 88a having an inclined surface for selectively bending the lock piece 86 to the lateral side portion 81 so as to protrude and retract. It is fitted. [0004] The slider 88 is mounted on the lock piece 8.
In order to selectively set the lock state and the unlocked state with respect to the connector 90 of the connection partner to the connector 6, the distal end pressing portion 88 a presses the corrugated convex portion 86 b formed at the center portion of the lock piece 86, The lock piece 86 slides to a position (lock release position) where the engaging projection 86a of the lock piece 86 is immersed (indicated by a dashed line in the figure) in the male fitting portion 81A, and the restoring force (elastic force) of the lock piece 86 from that position. To return to the original position (lock position). [0005] A predetermined number of socket-type contact pins 85 are mounted in the side portion 81, and a plug-type contact pin built in the connector 90 to be connected is connected to the contact pin 85. It is to be inserted. In the electric connector 80 as described above, in order to mount and connect it to the connector 90 of the connection partner, the fitting portion of the side portion 81 of the electric connector 80 is required. 81A is pushed into the fitting portion 91 of the connector 90. As a result, the contact pins are fitted to each other, and the locking projections 8 of the lock piece 86 are engaged.
The lock piece 86 is once depressed by the fitting portion 91 until the lock piece 6a is immersed in the fitting portion 81A, and the entire lock piece 86 is bent. And the connectors 80 and 90 are locked. On the other hand, the electric connector 80 is connected to the connector 9
When detaching from the position 0, the slider 88 is gripped and pulled in a direction away from the connector 90 (to the right in the figure). As a result, the slider 88 moves rightward in the drawing, and accordingly, the inclined surface of the tip pressing portion 88a of the slider 88 presses the corrugated convex portion 86b formed at the central portion of the lock piece 86 to deflect the lock piece 86. Bending the protrusion 86a into the male fitting portion 81A (indicated by a dashed line in the figure), thereby unlocking both connectors, and pulling the connector to the right to disconnect the electrical connector 80 from the connector 90. After that, the slider 88 returns to the original position by the restoring force of the lock piece 86. Here, in the above-mentioned conventional electric connector, a lock piece 86 is used as an urging means for returning the slider 88 from the sliding position to the original position. That is, the lock piece itself is used as a return spring. However, when the lock piece is used as a return spring as described above, although the lock piece is formed with an inclined surface, the slider is moved only at one point (only the upper end) and only upward. Since the slider cannot be pressed, problems such as the slider not sliding smoothly on the lateral side (main body) in the lateral direction and the slider not returning to the original position are likely to occur. Therefore, as a biasing means for returning the slider from the sliding position to the original position, instead of or in addition to the lock piece, a coil spring or a V-shaped spring is provided between the lateral side (main body) and the slider. Although it is considered to interpose a U-shaped spring, even if those springs are interposed, the spring contacts the slider at only one point, so the slider is also pressed in a biased direction. Therefore, the slider cannot slide smoothly in the lateral direction. In view of such a point, the present invention enables the slider manually fitted outside the main body to be smoothly returned from the unlocked position to the original locked position, so that the slider does not return to the original position. It is an object of the present invention to provide an electrical connector in which the problem described above is less likely to occur. [0012] In order to achieve the above object, an electric connector according to the present invention basically has a lock piece built in a main body, which is locked with respect to a mating connector. And a slider is slidably fitted to the main body so as to selectively take the lock piece into the unlocked state. To return to the position where the original locked state can be obtained. A spring having a U-shaped or V-shaped bent portion is used as biasing means for returning the slider from the sliding position to the original position. As a more preferable example of the urging means,
Two or more curved portions that are bent between the main body and the slider so as to alternately draw a U-shape and an inverted U-shape on one plane, and connect three or more straight-line portions arranged in parallel with adjacent straight-line portions. waveform spring of the slider comprising a wire having bets
Is interposed on both sides, it is formed on both sides of the spring
The linear portion is in linear contact with the slider . In the electrical connector according to the present invention having the above-described structure, the urging means interposed between the main body and the slider is a wave spring having a specific shape. Are brought into line contact with the slider. In this case, when the slider is slid to the unlock position, the wave springs are arranged such that the straight portions at both ends remain parallel and the middle straight portion is inclined to either side of the straight portions at both ends. The whole is compressed. As described above, since the linear portions at both ends are compressed while being in a parallel state, the waveform spring always makes linear contact with the slider, and the slider is pushed in the lateral direction of the main body without bias by the compressed waveform spring, and as a result, The slider is smoothly returned from the unlocked position to the original locked position by the wave spring. Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 are a partially cutaway side view and a front view, respectively, showing an embodiment of the electrical connector according to the present invention. The electric connector 10 of the present embodiment shown in the drawing.
As shown in detail in FIG. 3, has a main body 10A composed of an L-shaped bottom case 10a and a top cover 10b covering the rear part, and the main body 10A is fixed to the wiring board 100 or the like. An outline comprising a lateral side portion 11 having a male fitting portion 11A fitted into the female fitting portion 91 of the connector 90, and a vertical side portion 12 continuously provided so as to be substantially orthogonal to the lateral side portion 11. It has an L-shaped structure. The electrical connector 10 projects outward from the male fitting portion 11A of the lateral side portion 11 and engages with a locking recess 96 provided in the female fitting portion 91 of the connector 90 to be connected. The lock piece 26 is provided with a locking projection 26a to be locked. As shown in FIG. 8, the lock piece 26 has an L-shape including a bottom portion 26A and a vertical portion 26B along the inner periphery of the corner between the horizontal portion 11 and the vertical portion 12. A hooking projection 26a is provided at the distal end (free end) of the base 26A, and a wavy convex 26b is formed at the center thereof. Standing portions 26B are provided continuously so as to stand up.
A fixed fulcrum portion 26c that is bent in a crank shape near the upper end portion of the vertical side portion 26B and is locked to the upper end of a locking portion 29 provided inside the vertical side portion 12 of the electrical connector 10.
Is formed on the lower side, and the locking portion 2 protrudes left and right.
9 is provided with a wing portion 26d which engages with the lower portion. Then, the lock piece 26 is selected on the side portion 11 so that the locking projection 26a of the lock piece 26 having the above-described configuration is made to protrude and retract from the male fitting portion 11A of the side portion 11. Tip pressing portion 28 for flexible bending
A cylindrical slider 28 having an a is externally slidable in the lateral direction. The slider 28 has a tip pressing portion 28
a presses the corrugated convex portion 26b formed in the central portion of the lock piece 26, and
a into the male fitting portion 11A (indicated by a dashed line in FIGS. 1 and 8), and a pair of wave springs 1 as shown in FIG.
It is urged by 5 and 15 to return to the original position (position shown). As shown in FIGS. 3 and 5, the wave springs 15, 15 are connected to the bottom case 1 of the main body 10A.
One end of the bottom case 1 is held by the storage openings 13 formed at both front ends of the bottom case 1a.
The slider 28 fitted to the outer side 0a (lateral side portion 11) is held and contracted by the storage ports 14, 14 formed on the inner peripheral front end face (see also FIG. 4). In this case, as shown in FIG.
8 are provided with projecting ridges 28a, 28a on both sides thereof, and engagement claws 28b, 28b are formed on both inside sides, while the electric connector 10 on which the slider 28 is slidably fitted.
The bottom case 10a constituting the main body 10A of FIG.
As shown in FIG.
c is formed, and guide ridges 28 a and 28 of the slider 28 are formed.
a is fitted in the guide grooves 10c, 10c so that the slider 28 can slide smoothly, and is located on the opposite side to the storage ports 13, 13 for holding one ends of the wave springs 15, 15. Engagement grooves 10d, 10 on both sides
d is formed, and the engaging claws 28b, 28b of the slider 28 are engaged with the engaging grooves 10d, 10d, whereby the slider 28 is moved from the bottom case 10a (main body 10A) by the restoring force of the springs 15, 15. It is configured not to come off. As shown in FIG. 6, the wave springs 15, 15 are formed by bending a wire so as to alternately draw a U-shape and an inverted U-shape on one plane, and form five straight lines arranged in parallel. It has four bent portions 15b connecting the straight portion 15a to the adjacent straight portion 15a. A predetermined number of socket-type contact pins 31 to 33 are mounted in the male fitting portion 11A of the side portion 11 via a mold.
Plug-type contact pins built into the connector 90 of the connection partner are inserted into the connection pins 1-33, and serve as shield covers for the contact pins 31-33. In the electric connector 10 of the present embodiment having such a configuration, the electric connector 10 is
In order to attach and connect the connector 90, the fitting portion 11A of the side portion 11 of the electrical connector 10 is pushed into the fitting portion 91 of the connector 90.
Thereby, the mutual contact pins are fitted to each other, and at the same time, the locking projection 26a of the lock piece 26 is once pushed down by the fitting portion 91 until it is immersed in the fitting portion 11A, and the entire lock piece 26 will be described later. After being flexed as described above, it returns to its original state by its own elastic force and is locked in the locking recess 96, whereby both connectors 10 and 9 are connected.
0 is locked. On the other hand, the electric connector 10 is connected to the connector 9
When detaching from the position 0, the slider 28 is gripped and pulled in a direction away from the connector 90 (to the right in FIG. 1). As a result, the slider 28 moves rightward in FIG. 1 against the urging force of the wave springs 15, 15 in which the slider 28 is incorporated, and accordingly, the tip pressing portion 28 a of the slider 28 is formed at the center of the lock piece 26. Is pressed down, the bottom 26A of the lock piece 26 is pushed down and the vicinity of the upper end of the vertical side 26B (fixed fulcrum 26B).
The vertical side 26A and the bottom side 26B are bent in the opening direction with the c) as a fulcrum. As a result, the locking projection 26a of the lock piece 26 is immersed in the male fitting portion 11A (indicated by a dashed line in FIGS. 1 and 8), and the lock of the connectors 10, 90 is released. The electrical connector 10 is disengaged from the connector 90 and then the slider 8
Numeral 8 returns to the original position by the elastic restoring force of the pair of wave springs 15,15. Here, in this embodiment, the main body 10A
The urging means interposed between the horizontal side portion 11 and the slider 28 is a wave spring 15, 15 having a specific shape as shown in FIG.
The linear portions 15a, 15a at both ends of the line 15 are brought into line contact with the slider 28. In this case, the wave springs 15, 15
When the slider 28 is slid to the unlocked position, as shown in FIG.
15a is in a parallel state, and three intermediate straight portions 15a,
The whole is compressed so that 15a, 15a is inclined to either side of the straight portions 15a, 15a at both ends. As described above, since the linear portions 15a, 15a at both ends are compressed in a parallel state, the wave springs 15, 15 are always in linear contact with the slider 28, and the slider 28 is not biased by the compressed wave springs 15, 15. 10A
As a result, the slider 28 is smoothly returned from the unlocked position to the original locked position by the wave springs 15, 15. In the above description, an example in which the present invention is applied to a socket-type multi-pole connector having straight contact pins has been described. However, the present invention is not limited to this. Needless to say, the present invention can be similarly applied to a plug type or a plug type. As can be understood from the above description, in the electric connector according to the present invention, the urging means interposed between the main body and the slider is formed by a wave spring having a specific shape.
Since the linear portions at both ends of the wave spring are brought into line contact with the slider, when the slider is slid to the unlocked position, the linear portions at both ends remain in a parallel state, and the intermediate linear portion is moved to one of the linear portions at both ends. The whole is compressed so as to incline to the side, and in this way, the linear parts at both ends are compressed in a parallel state,
The wave spring is always in line contact with the slider, and the compressed wave spring pushes the slider laterally without bias, resulting in the slider returning smoothly from the unlocked position to the original locked position by the wave spring. As a result, it is possible to reduce the possibility that the slider will not return to the original position.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway side view showing an embodiment of an electrical connector according to the present invention. FIG. 2 is a front view of the electrical connector of FIG. 1; FIG. 3 is an exploded perspective view showing a main body and a slider of an embodiment of the electric connector according to the present invention. 4A and 4B show a slider used in the electric connector of FIG. 1, wherein FIG. 4A is a side view, FIG. 4B is a rear view, and FIG. 5 shows a bottom case of the electrical connector of FIG. 1,
(A) is a side view, (B) is a front view, (C) is a partially cutaway bottom view. FIGS. 6A and 6B show a natural state of a wave spring used in the electrical connector of FIG. 1, wherein FIG. 6A is a side view, FIG. 6B is a plan view, and FIG. FIG. 7 is a view showing a compressed state of a wave spring used in the electric connector of FIG. 1; 8 shows a lock piece of the electrical connector of FIG. 1,
(A) is a side view, (B) is a plan view, and (C) is a front view. FIG. 9 is a partially cutaway side view showing an example of a conventional electrical connector. DESCRIPTION OF SYMBOLS 10 Electrical connector 10A Main body 11 Side section 11A Fitting section 12 Vertical section 13, 14 Storage port 15 Wave spring 15a Linear section 15b Curved section 26 Lock piece 26a Hook projection 28 Slider 31-33 Contact Pin 90 Connector 96 Locking recess 100 Wiring board

Claims (1)

(57) [Claim 1] The main body is slidable so that a lock piece incorporated in the main body can selectively take a locked state and an unlocked state with respect to a connector of a connection partner. A slider is externally fitted, and the slider is slid to a position at which the lock piece takes the unlocked state, and is urged to return from the position to the position at which the lock state is taken. In the electrical connector, as a biasing means for returning the slider from the sliding position to the original position, between the main body and the slider , alternately on one plane.
It is bent to draw a U-shape and an inverted U-shape,
Two or more songs that connect three or more straight parts and adjacent straight parts
A wave spring made of a wire having a
Interposed on both sides of the spring, formed on both sides of this spring
Note that the straight part that is
Electrical connector.