JP3788987B2 - Connector with locking mechanism - Google Patents

Description

  The present invention relates to a connector with a lock mechanism, and more particularly to release of a connector lock mechanism.

  A conventional connector with a lock mechanism will be described (for example, see Patent Document 1).

  As shown in FIG. 7, the connector includes a connector element 200 for obtaining a connection with a mating connector (not shown), a first shell 210 into which the connector element 200 is inserted and fixed at one end, A second shell 220 combined with the first shell 210, a first hood 230 and a second hood 230 that surround the connector element 200, the first shell 210, and the second shell 220 from the outside and are coupled to each other by screws or the like. Hood 240. A cable (not shown) is connected to the connector element 200, and the cable is pulled out from between the first shell 210 and the second shell 220.

  A lock spring 222 for locking the fitting between the connector and the mating connector is integrally formed on the opposing side wall 221 of the second shell 220. Each lock spring 222 extends in the fitting direction with the mating connector along the second shell 220, and has a lock portion 223 for locking with the mating connector in the vicinity of the extended end.

  Further, the other end of each lock spring 222 is integrally coupled to the second shell 220, and a bent portion 224 that can be elastically deformed is formed in the vicinity thereof. Each bent portion 224 is formed as a convex portion protruding to the side, and has a button function for releasing the lock with the mating connector. That is, when the pair of lock operation portions 231 of the first hood 230 are pushed inward with fingers, the bent portions 224 are pushed inward, and the lock portions 223 release the lock with the counterpart connector.

This type of connector with a lock mechanism is also described in other documents (for example, see Patent Document 2).
JP 2000-252018 (Page 2, Column 2, Line 29-Page 3, Column 3, Line 16, Figures 1-3) JP 2002-190351 A

  In the conventional connector with a lock mechanism, when the mating connector is detached from this connector, it is necessary to continue to push in both lock operation portions 231 until the disengagement is completed. That is, it is necessary to simultaneously perform two operations of releasing the lock by pushing both lock operation portions 231 and releasing the mating connector from this connector, which is inconvenient.

  Therefore, the present invention improves the drawbacks of the conventional connector with a lock mechanism, and when releasing the second connector from the first connector, there is no need to continue the operation of releasing the lock, and the lock is easy to operate. A connector with a mechanism is to be provided.

  The present invention employs the following means in order to solve the above problems.

  1. In the connector in which the first connector having the lock hole and the second connector having the elastically deformable lock lever and the lock operation portion can be fitted and detached, the first connector has a spring portion. The lock lever has a taper portion, a jaw portion, and a hook portion, and when the second connector is engaged with the first connector, the jaw portion is inserted into the lock hole by the guide of the taper portion. When locked, the hook part elastically deforms the spring part to release the lock. Once the lock operation part is operated, the jaw part is released from the lock by the lock hole even if the operation is not continued thereafter. The spring portion restores elastic deformation, and the hook portion is hooked on the spring portion to restrict the restoration of the lock lever, and the second connector is the first connector. Connector with a lock mechanism that can be detached from the connector.

  2. 2. The connector with a lock mechanism according to claim 1, wherein the lock hole and the spring portion are provided in a shell surrounding the outside of the first connector.

  3. 2. The connector with a lock mechanism according to claim 1, wherein the lock operation portion is formed on an insulator constituting a part of the second connector.

  As is apparent from the description of the specification, the present invention has the following effects.

  1. When the second connector is detached from the first connector, once the lock operation unit is operated, the operation can be performed without being continued thereafter, so that the operation is convenient.

  2. Since the intended purpose is achieved by the configuration of the lock hole and spring part of the first connector and the lock lever and lock operation part of the second connector, the structure is simple, easy to manufacture, easy to assemble and disassemble, Moreover, the cost is low.

  A connector with a lock mechanism according to an embodiment of the present invention will be described.

  A first embodiment of the present invention will be described with reference to FIGS.

  The connector of the present invention includes a printed circuit board (hereinafter sometimes referred to as “PCB”) side connector and a cable side connector. The PCB-side connector is mounted on a substrate such as a liquid crystal display (LCD) panel, and the cable-side connector is connected to wiring connected to the device body. When the PCB-side connector and the cable-side connector are fitted, the contacts of both connectors come into contact with each other, so that an electrical signal is transmitted from the device body to a liquid crystal display panel or the like.

  FIG. 1 is a plan view before mating of the connector, FIG. 2 is a plan view before mating of the connector showing the main part in a sectional view, and FIG. 3 is a plan view of the mated state of the connector showing the main part in a sectional view, 4A is an enlarged cross-sectional view of the main part of FIG. 2, and FIG. 4B is an enlarged cross-sectional view of the main part of FIG.

  The PCB-side connector 1 includes a large number of contacts 10 arranged at a constant pitch, an insulator 20 that holds each contact 10, a ground plate 30 that is arranged on both sides of the multiple contacts 10 and is held by the insulator 20, The shell 40 surrounds the outside of the PCB-side connector 1.

  The cable-side connector 100 includes a large number of contacts 110 arranged at a constant pitch, an insulator 120 that holds each contact 110, lock levers 130 provided on both sides of the insulator 120, and the outside of the cable-side connector 100. The surrounding shell 140 is comprised. Each contact 110 is connected to each cable 150.

  Each contact 10 includes a soldered terminal portion 11, a press-fit portion 12 to the insulator 20, and a contact portion (not shown).

  The insulator 20 is manufactured from a non-conductive material, and has a fitting part 21 into which the cable-side connector 100 is fitted, and a boss storage part 22 and a side part 23 on both sides of the fitting part 21. A spring hole 26 that houses the shell hole 24, the shell hole 25, and the spring part 47 of the shell 40 is formed on the back side of each side surface part 23.

  Each ground plate 30 has a soldered terminal 31, a press-fitting portion (not shown) to the insulator 20, and a terminal portion (not shown). The terminal portion is disposed to face the contact 10 in the thickness direction of the PCB-side connector 1.

  The shell 40 is manufactured from a metal plate, and solder terminals 41 provided at both ends of the shell 40 are soldered to a substrate such as a liquid crystal display panel.

  The front surface 42 of the shell 40 is folded inward to form a folding portion 43, the upper surface of the shell 40 is folded to form a press-fit portion 44 and a press-fit portion 45, and the back side of the lower surface of the shell 40 is folded back to a spring portion 47. (See FIGS. 5 and 6). A lock hole 46 is opened in the middle of the folding part 43.

  FIG. 5 is a perspective view of the locking mechanism portion of the connector, and shows the insulator in a sectional view. FIG. 6 is a perspective view in which a part of the locking mechanism portion of the connector is removed, and shows the insulator in a sectional view.

  The assembly of the PCB-side connector 1 is performed by press-fitting the contacts 10 and the ground plate 30 into the insulator 20 from the rear and the shell 40 from the front.

  When the shell 40 is assembled in the insulator 20, the press-fit portion 44 is press-fitted into the shell hole 24, the press-fit portion 45 is press-fitted into the shell hole 25, and the spring portion 47 is inserted into the spring hole 26.

  The PCB-side connector 1 is formed by soldering the soldering terminal portions 11 of the contacts 10, the soldering terminals 31 of the ground plates 30, and the soldering terminals 41 of the shell 40 to a substrate such as a liquid crystal display panel. Fixed to.

  The insulator 120 of the cable side connector 100 includes a main body 121 and a fitting portion 122. Both ends of the fitting portion 122 serve as guide posts 123, but the lower half of the guide posts 123 is cut out to form the escape portions 124.

  A lock lever groove 125, a lock operation portion 126, and a lock lever press-fitting hole 127 are formed on both ends of the insulator 120.

  The pair of lock levers 130 are configured to have a symmetrical shape structure and are attached to the insulator 120 by press-fitting. Each lock lever 130 includes a press-fitting portion 131 to the insulator 120, a turn-back portion 132, a main body portion 133, a taper portion 134, a jaw portion 135, and a hooking portion 136.

  A contact portion (not shown) provided at one end of the shell 140 is in contact with the ground plate 30.

  The assembly of the cable side connector 100 is performed by press-fitting each contact 100, each lock lever 130, and the shell 140 into the insulator 120.

  The press-fitting part 131 of each lock lever 130 is press-fitted into the lock lever press-fitting hole 127 of the insulator 120, the main body part 133 passes through the lock lever groove 125, and the tapered part 134, the jaw part 135, and the hook part 136 are inserted into the escape part 124. Each lock lever 130 is attached to the insulator 120 by entering.

  When the PCB-side connector 1 and the cable-side connector 100 are fitted, the fitting portion 122 is inserted into the fitting portion 21, each guide post 123 is inserted into each boss housing portion 22, and each contact 110 is in contact with each contact 10. To do.

  At the time of this fitting, since the taper part 134 of each lock lever 130 gets over the folding part 43, the taper part 134 is displaced to the left by the displacement amount a as shown in FIG. Then, the tapered portion 134 is restored to the right, and the jaw portion 135 enters the lock hole 46 as shown in FIG. At this time, the hooking portion 136 rides on the spring portion 47, and the leaf spring of the spring portion 47 is displaced downward. Even if the cable-side connector 100 is to be removed from the PCB-side connector 1 in this state, the removal is prevented because the jaw portion 135 is hooked on the lock hole 46.

  When the cable-side connector 100 is removed from the PCB-side connector 1, when the left and right lock operation portions 126 are pushed in with fingers, the main body portion 133 is also pushed together as shown in FIG. At this time, the tapered portion 134, the jaw portion 135, and the hooking portion 136 are also pushed in, and the tapered portion 134 is displaced by the displacement amount b. When a displacement amount b is given to the hooking part 136 riding on the spring part 47, the hooking part 136 moves from above the spring part 47, so the riding state is released and the spring part 47 is restored to the upper side. .

  When the force of the finger that has pushed both lock operation parts 126 is released, both lock operation parts 126 return to their original positions (see FIG. 6B) as shown in FIG. 136 stops at the position hooked on the edge 48 of the spring portion 47 restored to the upper side. The displacement amount of the taper part 134 at this time is set to c.

  Since the relationship between the displacement amounts a, b, and c is a <c <b, in the state shown in FIG. 6D, the hooking of the jaw portion 135 to the lock hole 46 is released. Can be removed from the PCB-side connector 1.

  When the cable-side connector 100 is removed from the PCB-side connector 1, the hook 136 is separated from the edge 48 of the PCB-side connector 1 that restricts its restoration.

  As described above, in this connector, the spring portion 47 provided on the shell 40 of the PCB-side connector 1 is engaged by restricting the movement of the lock lever 130 of the cable-side connector 100 in the fitted state. Sometimes, even if the connector is in the locked state, once the both lock operation portions 126 are pushed in, the connector is held in the unlocked state. Therefore, when the cable-side connector 100 is removed from the PCB-side connector 1, it is not necessary to continue pressing the lock operation portions 126, so that a connector with a lock mechanism having excellent operability can be obtained.

  In the first embodiment, the spring portion 47 extends from the lower surface of the shell 40 of the PCB-side connector 1, but the same effect can be achieved by extending from the upper surface or both upper and lower surfaces.

It is a top view before fitting of the connector with a locking mechanism of Example 1 of the present invention. It is a top view before fitting of the same connector which shows a principal part with a sectional view. It is a top view of the fitting state of the connector which shows the principal part with sectional drawing. It is an expanded sectional view of the principal part of the connector, (A) shows a thing before fitting, and (B) shows a thing of a fitting state, respectively. It is a perspective view of the same principal part of the connector (however, the insulator is a sectional view), (A) is before mating, (B) is in the middle of mating, (C) is in the mating state , Respectively. It is a perspective view of the same principal part of the same connector (however, an insulator and a part of shell are sectional views), (A) is a state before fitting, (B) is a fitting state, (C) is a lock (D) shows a state in which the operation unit is pushed in, and (D) shows a state in which the lock operation unit is restored from being pushed in. It is various drawings of the conventional connector with a locking mechanism, (A) is an exploded perspective view, (B) is a top view of a 1st hood, (C) shows the perspective view of a 2nd shell, respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Printed circuit board (PCB) side connector 10 Contact 11 Solder terminal part 12 Press-fit part 20 Insulator 21 Fitting part 22 Boss accommodating part 23 Side part 24 Shell hole 25 Shell hole 26 Spring hole 30 Ground plate 31 Solder terminal 40 Shell 41 Soldered terminal 42 Front surface 43 Folding portion 44 Press-fit portion 45 Press-fit portion 46 Lock hole 47 Spring portion 48 Edge portion 100 Cable side connector 110 Contact 120 Insulator 121 Main body portion 122 Fitting portion 123 Guide post 124 Escape portion 125 Lock lever groove 126 Lock operation part 127 Lock lever press-fitting hole 130 Lock lever 131 Press-fitting part 132 Folding part 133 Main part 134 Taper part 135 Jaw part 136 Hook part 140 Shell 150 Cable

Claims (3)

In the connector in which the first connector having the lock hole and the second connector having the elastically deformable lock lever and the lock operation portion can be fitted and detached,
The first connector has a spring portion;
The lock lever has a tapered portion, a jaw portion and a hook portion,
When the second connector is engaged with the first connector, the jaw portion is locked to the lock hole by the induction of the tapered portion, and the hook portion elastically deforms the spring portion,
When releasing the lock, once the lock operation portion is operated, the jaw portion is released from the lock by the lock hole without further operation, and the spring portion restores elastic deformation, and the hook portion The connector with a lock mechanism is characterized in that when the spring is hooked on the spring portion, the restoration of the lock lever is limited, and the second connector can be detached from the first connector.   2. The connector with a lock mechanism according to claim 1, wherein the lock hole and the spring portion are provided in a shell surrounding the outside of the first connector. The connector with a lock mechanism according to claim 1, wherein the lock operation portion is formed in an insulator constituting a part of the second connector.

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