JPH1116637A - Lever type connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lever type connector which ensures contacting of a short-circuiting piece with short-circuiting terminals only in the case of complete fitting of a pair of connectors without secure contacting of the short-circuiting piece with the short-circuiting terminals in the case of incomplete fitting of the pair of connectors. SOLUTION: An elastic locking piece 22 for locking a lever 13 after completion of fitting of a pair of connectors and a pair of short-circuiting terminals 28 having an elastic contact piece 31 capable of elastically contacting with the elastic locking piece 22 are disposed in one of the connectors of a lever type connector. The lever 13 is provided with a short-circuiting piece 36 for pressing an elastic contact piece 31 via the elastic locking piece 22 during a midway of the fitting of the pair of connectors and for short-circuiting the pair of short-circuiting terminal 28 in contact with the elastic contact piece 31 after the completion of the fitting.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lever-type connector in which a pair of connectors are disengaged by turning a lever.

[0002]

2. Description of the Related Art As a conventional lever-type connector of this type, for example, the one shown in FIG. 11 is known (see Japanese Patent Application Laid-Open No. 4-87169). This lever type connector 1
00 is a female connector 1 having a large number of pin-shaped male terminals 112 connected to a substrate 130 built in a female housing 111.
10 and a male connector 120 which is connected to an electric wire 123 and has a number of female terminals 122 fitted and connected to the male terminals 112 in a male housing 121. The female housing 111 of the female connector 110 has cam portions 1 at both ends.
A lever 115 is formed so as to protrude and has an engaging portion 116 protrudingly formed at a substantially central portion thereof. The lever 115 is urged upward by a coil spring 114 before the connectors 110 and 120 are fitted together. ing. A cam groove 118 is formed in the cam portion 117.
On the other hand, on both sides of the male housing 121 of the male connector 120, pin projections 125 to be fitted into the cam grooves 118 are formed so as to protrude, and an engaging portion 116 of the female connector 110 is locked at a substantially central portion of the male housing 121. The lock portion 124 to be formed is formed to protrude. Further, in order to detect incomplete fitting between the female connector 110 and the male connector 120, a pair of substantially U-shaped short-circuit terminals 113 are arranged on the female housing 111 of the female connector 110, and the lever 115 is provided on the lever 115. 1
A short-circuit piece 119 for short-circuiting the pair of short-circuit terminals 113 is arranged. Then, the pin protrusion 12 of the male connector 120 is formed.
5 is fitted into the cam groove 118 of the lever 115 of the female connector 110, and as shown in FIG. 11B, when the lever 115 is rotated in the direction C, the male connector 120 enters the female connector 110 and Female terminals 122 are easily fitted and connected to a large number of male terminals 112, and a pair of female terminals 122 are fitted and connected to a pair of short-circuit terminals 113.
Further, the lever 11 is moved until the engaging portion 116 provided on the lever 115 is locked by the locking portion 124 of the male connector 120.
By rotating 5, both connectors 110, 120 are fully engaged. At the same time, as shown in FIG. 11 (C), the short-circuiting piece 119 provided on the lever 115 comes into contact with the pair of short-circuiting terminals 113, and thereby the electric circuit (see FIG. (Not shown) is closed, and, for example, a mating completion notification lamp is turned on to confirm that the female connector 110 and the male connector 120 are completely mated. When the fitting of the female connector 110 and the male connector 120 is halfway, the short-circuiting piece 119 is connected to the pair of short-circuit terminals 113.
Can be detected without contacting the parts.

[0003]

However, in this conventional lever-type connector 100, the short-circuiting piece 119 is not provided.
And a pair of short-circuit terminals 113 and an incompletely fitted detecting means are interlocked with a locking means composed of an engaging portion 116 and a locking portion 124 which are locked to each other when the female connector 110 and the male connector 120 are completely fitted. Therefore, even when the female connector 110 and the male connector 120 are in an incompletely fitted state, the short-circuiting piece 119 may come into contact with the pair of short-circuiting terminals 113.
10, 120 may be recognized as being completely fitted.

Accordingly, an object of the present invention is to provide a short-circuiting piece that does not reliably contact a short-circuiting terminal when a pair of connectors are in an incompletely fitted state, but only when both connectors are completely fitted. Is to provide a lever-type connector which ensures that the contact with the short-circuit terminal.

[0005]

A lever-type connector according to the present invention comprises a pair of connectors which are removably fitted to each other, and a lever provided on one of the pair of connectors. A lever-type connector configured to be disengaged by rotating the pair of connectors, wherein the insulating connector locks the lever after the mating of the pair of connectors is completed with the one connector. And a pair of short-circuit terminals having an elastic contact piece elastically contacting the elastic lock piece, wherein the lever is provided with the elastic lock piece during the fitting of the pair of connectors. Press the elastic contact piece of the pair of short-circuit terminals via the connector, and contact the elastic contact piece after the mating of the pair of connectors is completed to short-circuit the pair of short-circuit terminals. It is characterized by having a single.

A pinion protrudes from a pivot arm of the lever, and a latch tooth for engaging the pinion is formed on the other connector of the pair of connectors.
It is effective if the pair of connectors can be disengaged by the action of the rack and pinion mechanism accompanying the rotation of the lever.

[0007]

Embodiments of the present invention will be described with reference to the drawings. 1A and 1B show a lever-type connector according to the present invention, wherein FIG. 1A is a side view of a first connector and a second connector when fitting is started, and FIG. 1B is a side view after the fitting of the first connector and the second connector is completed. FIG.

In FIG. 1, a lever-type connector 1 comprises a pair of a first connector 10 and a second connector 40 which are removably fitted to each other, and rotate a lever 13 provided on the first connector 10. By doing so, the pair of the first connector 10 and the second connector 40 are configured to be disengaged. When the lever 13 is rotated in the direction of arrow A from the position of FIG. 1A, the second connector 40 moves in the direction of arrow B. When the lever 13 is in the position of FIG. The fitting of the connector 40 is completed. On the other hand, when the lever 13 is rotated from the position shown in FIG. 1B in the direction opposite to the direction A, the second connector 40 moves in the direction opposite to the direction B, and the first connector 10 and the second connector 40 are detached. Here, the second connector 40 includes an insulating second housing 41 and a number of male contacts 42 attached to the second housing 41. One end of each of the male contacts 42 is a printed circuit board (not shown). It is connected to the.

2 is a plan view of the first connector 10, FIG. 3 is a side view of the first connector 10, FIG. 4 is a rear view of the first connector 10, and FIG. 5 is a partial cross section taken along line 5-5 in FIG. FIG. However, a female contact and a short-circuit terminal, which will be described later, are not shown in FIGS. 2 to 5, the first connector 10 includes a first housing 11 that accommodates a number of female contacts (not shown) that are fitted and connected to the male contacts 42 of the second connector 40, and an upper portion of the first housing 11. And a hood 12 covering a number of electric wires 50 (see FIG. 1) connected to each of the number of female contacts, and a lever 13 rotatably attached to the first housing 11.

The first housing 11, as best shown in FIG. 3, includes a body 14 having a number of female contact receiving holes (not shown) for receiving female contacts,
And a shroud 15 attached to the main body 14 so as to cover the periphery of the main body 14. The main body 14 and the shroud 15 are integrally formed by injection molding a resin material. A lever opening 19 through which the lever 13 attached to the shroud 15 passes is formed between the main body 14 and the shroud 15, and the lever 13 is turned on both inner surfaces (upper and lower inner surfaces in FIG. 2) of the shroud 15. A lever support shaft 18 for supporting is formed to protrude. or,
A plurality of hood mounting portions 16 for mounting the hood 12 are formed on the upper side of the main body 14 so as to protrude. Note that a seal member 17 is provided around the main body 14 to maintain waterproofness when the first connector 10 and the second connector 40 are fitted.

The hood 12 is formed by injection-molding a resin material. An electric wire outlet 20 through which a large number of electric wires 50 are led out is provided at an upper rear portion of the hood 12 (upper right portion in FIG. 3). A plurality of mounting holes 21 into which the hood mounting portion 16 of the first housing 11 is fitted are formed on both sides (upper and lower sides in FIG. 2) of the hood 12.
Are formed. The upper wall of the hood 12 is integrally provided with a cantilever-shaped elastic lock piece 22 for locking the lever 13 when the first connector 10 and the second connector 40 are completely fitted. The elastic lock pieces 22 have insulating properties because the hood 12 is formed of a resin material, and have a flexible portion 23 extending from an upper wall of the hood 12 and both sides (upper and lower sides in FIG. 2) from the flexible portion 23. When the first connector 10 and the second connector 40 are completely fitted, the lever 1
3 is provided. First
When detaching the connector 10 and the second connector 40, the restricting portion 24 is pressed from above to push the elastic locking piece 22.
Unlock the lever 13. In addition, the hood 12
A pair of terminal receiving holes 26 having openings 27 upward are formed in parallel from the rear end of the upper wall, and a pair of short-circuit terminals 28 (see FIG. 6) are respectively formed in these terminal receiving holes 26. Is housed. Each short-circuit terminal 28 is raised from both sides of the base wall 29 and is guided by both side walls of the terminal receiving hole 26.
The pair of side walls 30 is folded back from the front end of the base wall 29, protrudes upward from the opening 27, and is fitted into a concave portion 25 formed on the lower surface of the restricting portion 24 of the elastic lock piece 22 so that the upper surface thereof is elastic lock piece 22. Contact piece 31 that contacts the base wall 2
9 and an electric wire connection portion 32 for crimp-connecting the electric wire 51. The other end of the electric wire 51 connected to the electric wire connection portion 32 is connected to a female contact (not shown) accommodated in the first housing 11.

The lever 13 is provided with an operating portion 33 and a rotating arm portion 3 provided on both sides of the operating portion 33 and rotatably supported by a lever support shaft 18 of the first housing 11.
4 and is formed by injection molding a resin material. In addition, as can be best understood in FIG. 10, a substantially rectangular metal short-circuiting piece 36 is provided in the lower concave portion 35 of the operation portion 33 of the lever 13. The lower surface of the operating portion 33 of the lever 13 presses the elastic contact pieces 31 of the pair of short-circuit terminals 28 via the restricting portions 24 of the elastic lock pieces 22 during the fitting of the first connector 10 and the second connector 40. In addition, the short-circuit piece 36 is connected to the first connector 10.
After the fitting of the second connector 40 is completed, the pair of short-circuit terminals 28 are short-circuited by contacting the elastic contact pieces 31.

The pivot arm 34 of the lever 13 has a pinion 37 projecting therefrom.
On the outer surface of the second housing 41, rack teeth (not shown) that engage with the pinion 37 are formed, and the first connector 10 and the second connector 10 are formed by the action of the rack and pinion mechanism accompanying the rotation of the lever 13. The connector 40 can be disengaged with a low operation force. If the pair of the first connector 10 and the second connector 40 can be disengaged with a low operation force by the rotation of the lever 13, the rack and pinion mechanism may not be used. For example, the lever 13 is provided with a cam groove, and the second connector 40 is provided with a pin fitted into the cam groove.

Next, the short-circuit operation of the pair of short-circuit terminals 28 will be described in detail with reference to FIGS. FIG.
7 is a partial cross-sectional view before the operation portion 33 of the lever 13 contacts the restriction portion 24 of the elastic lock piece 22. FIG. 7 is a diagram when the operation portion 33 of the lever 13 starts contacting the restriction portion 24 of the elastic lock piece 22. FIG. 8 is a partial cross-sectional view just before the operation portion 33 of the lever 13 has come into contact with the restricting portion 24 of the elastic lock piece 22. FIG. 9 is a rotation of the lever 13 and the first connector 10 and the second connector. FIG. 10 is a partial enlarged sectional view of FIG.

When the lever 13 is moved from the position shown in FIG.
When the lever 13 moves to the position shown in FIG. 6, the lower surface of the operating portion 33 of the lever 13 does not contact the upper surface of the regulating portion 24 of the elastic lock piece 22, and The upper surface of the elastic contact piece 31 of the pair of short-circuit terminals 28 is in contact with the lower surface of the regulating portion 24. At this time, the short-circuit piece 36 provided on the lever 13 is not in contact with the pair of short-circuit terminals 28.

When the lever 13 is further rotated in the direction A from the position shown in FIG. 6 and the position of the lever 13 becomes the position shown in FIG.
Then, the elastic lock pieces 22 are bent downward, and the elastic contact pieces 31 of the pair of short-circuit terminals 28 are pressed downward by the elastic lock pieces 22. At this time, the short-circuit piece 36 provided on the lever 13 does not contact the pair of short-circuit terminals 28.

When the lever 13 is further rotated in the direction A from the position shown in FIG. 7 and the position of the lever 13 becomes the position shown in FIG. 8, the elastic lock piece 22 is further deflected downward from the position shown in FIG. The elastic contact pieces 31 of the pair of short-circuit terminals 28 are pressed further downward by the elastic lock pieces 22. At this time, the short-circuit piece 36 provided on the lever 13 does not contact the pair of short-circuit terminals 28.

When the lever 13 is further rotated in the direction A from the position shown in FIG. 8 and the position of the lever 13 becomes the position shown in FIG. 9, the first connector 10 and the second connector 40 are moved as shown in FIG. The fitting is completed. At this time, the lower surface of the short-circuiting piece 36 of the lever 13 elastically contacts the upper surface of the elastic contact piece 31 of the pair of short-circuiting terminals 28 for the first time, and both short-circuiting terminals 28 are short-circuited. The lever 13 is returned to the state, and the reversing of the lever 13 is prevented by the restricting portion 24 of the elastic lock piece 22. When the fitting of the first connector 10 and the second connector 40 is completed, a pair of female contacts in the first housing 11 connected to the pair of electric wires 51 are connected to the second connector 4.
0 is fitted and connected to a pair of male contacts 42. Therefore, when the pair of short-circuit terminals 28 are short-circuited due to the completion of the fitting, an electric circuit (not shown) of the connector-fitting confirming means in the printed circuit board to which the male contact 42 is connected is closed, and the electric circuit is closed. By checking the circuit, it can be confirmed that the first connector 10 and the second connector 40 are completely fitted. When the first connector 10 and the second connector 40 are incompletely fitted, the pair of short-circuit terminals 28 does not short-circuit, so that the incompletely fitted state can be detected. As shown in FIGS. 6 to 8, when the first connector 10 and the second connector 40 are in an incompletely fitted state, an elastic lock is provided between the shorting piece 36 of the lever 13 and the pair of shorting terminals 28. The restriction part 24 of the piece 22 exists, and short-circuiting of the short-circuit terminal 28 can be reliably prevented.

[0019]

According to the lever type connector according to the present invention, the lever for engaging and disengaging the pair of connectors by rotating action is connected to the pair of connectors via an insulating elastic locking piece during the fitting of the pair of connectors. And a pair of short-circuiting pieces for pressing the elastic contact pieces of the short-circuiting terminals and short-circuiting the pair of short-circuiting terminals by contacting the elastic contact pieces after the mating of the pair of connectors is completed. Is incompletely fitted, the contact of the short-circuiting piece provided on the lever with the pair of short-circuiting terminals is reliably blocked by the insulating elastic locking piece, and both connectors are completely fitted. Only when this is done, it is guaranteed that the short-circuit piece contacts the pair of short-circuit terminals.

Further, when the pair of connectors is disengaged by the action of the rack and pinion mechanism accompanying the rotation of the lever, the pair of connectors can be securely connected with a low operating force. Can be engaged and disengaged.

[Brief description of the drawings]

FIG. 1 shows a lever-type connector of the present invention, in which (A) is a side view of a first connector and a second connector when fitting is started,
(B) is a side view after the fitting of the 1st connector and the 2nd connector is completed.

FIG. 2 is a plan view of a first connector.

FIG. 3 is a side view of the first connector.

FIG. 4 is a rear view of the first connector.

FIG. 5 is a partial sectional view taken along line 5-5 in FIG. 2;

FIG. 6 is a partial cross-sectional view before an operating portion of a lever contacts a restricting portion of an elastic lock piece.

FIG. 7 is a partial cross-sectional view when the operating portion of the lever starts to contact the restricting portion of the elastic lock piece.

FIG. 8 is a partial cross-sectional view just before the operation part of the lever comes into contact with the restriction part of the elastic lock piece.

FIG. 9 is a partial cross-sectional view showing a state where the rotation of the lever and the fitting of the first connector and the second connector are completed.

FIG. 10 is a partially enlarged sectional view of FIG. 7;

FIG. 11 shows a conventional lever-type connector, where (A) is 1
A perspective view before a pair of male and female connectors are fitted, (B) is a cross-sectional view before a short-circuit piece and a short-circuit terminal are in contact, and (C) is a cross-sectional view after a short-circuit piece and a short-circuit terminal are in contact. It is.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lever connector 10 1st connector (connector) 13 Lever 22 Elastic lock piece 28 Short circuit terminal 31 Elastic contact piece 36 Short circuit piece 40 2nd connector (connector)

Claims (2)

[Claims] 1. A connector comprising a pair of connectors which are removably fitted to each other, and the pair of connectors are engaged by rotating a lever provided on one of the pair of connectors. A lever-type connector configured to be detached, wherein the one connector is provided with an insulating elastic lock piece that locks the lever after the mating of the pair of connectors is completed. A pair of short-circuit terminals having elastic contact pieces that are elastically contacted with each other; wherein the lever is provided on the pair of short-circuit terminals via the elastic lock pieces during the fitting of the pair of connectors. A lever-type connector having a short-circuit piece that presses a contact piece and contacts the elastic contact piece after the fitting of the pair of connectors is completed to short-circuit the pair of short-circuit terminals. 2. A pinion protrudes from a pivot arm portion of the lever, and a latch tooth for engaging the pinion is formed on the other connector of the pair of connectors. 2. The lever-type connector according to claim 1, wherein the pair of connectors is disengaged by the action of a rack and pinion mechanism.