JP2000228250A - Connector plug and connector socket - Google Patents

Abstract

(57) [Problem] To provide a small-sized connector which is hardly damaged. SOLUTION: The connector plug has an outer cylinder in which a female contact is stored in a shaft core, a cylindrical receiving portion for receiving the outer cylinder, and a pin contact protruding and supported by the shaft core of the receiving portion. In the connector constituted by the connector socket, a spring piece is provided on the outer periphery of the outer cylinder, and this spring piece is made to penetrate into the inside of the receiving portion on the connector socket side. The locking claw is engaged with the formed locking claw to obtain a locked state, and the locking claw is formed with an inclined surface P opposed to one in the circumferential direction.
Is configured so that it can be released from the locked state by the presence of.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector plug and a connector socket which can be used, for example, for connecting solar cells.

[0002]

2. Description of the Related Art FIGS. 5 and 6 show the structure of a conventional connector plug and connector socket. 5 shows a connector plug 100 and a connector socket 200 shown in FIG. The connector plug 100 is an insulating body 1 made of an insulating material.
01, a cylindrical fitting portion 102 protruding from the distal end side of the insulating body 101, and a pair of spring pieces 103A, 103 protruding from the peripheral surface of the fitting portion 102.
B, locking claws 104A, 104B formed on the pair of spring pieces 103A, 103B, and spring pieces 103A, 1B.
Handle portions 105A, 105 formed at each free end portion of 03B
B, a contact receiving hole 106 formed in the shaft core of the fitting portion 102, and a female contact 107 stored in the contact receiving hole 106.

The insulating body 101 is, for example, a cable 108
The female contact 107 is inserted into a resin molding die in a state of being electrically connected thereto, and is molded by an insert molding method. The connector socket 200 includes an insulating body 201 for storing the cable 208 and the pin contact 207, a large-diameter portion 202 having an inner diameter that is the amount of protrusion of the spring pieces 103 </ b> A and 103 </ b> B provided on the connector plug 100 from the axis, and a fitting portion. A small-diameter portion 203 having an inner diameter equal to the outer diameter of the large-diameter portion 102 and a pair of square holes 204A and 204 formed on the peripheral surface of the large-diameter portion 202.
B, a pair of slits S formed in the small-diameter portion 203, and a gasket 205 mounted on the closed surface of the small-diameter portion 203.

The spring pieces 103A and 103B of the connector plug 100 are engaged with a pair of slits S formed in the connector socket 200, and the fitting portion 102 is inserted into the small diameter portion 203. As a result, the pin contact 207 is inserted into the contact receiving hole 106, and the pin contact 207 fits into the female contact 107 and makes electrical contact. At the same time, the locking claws 104A and 104B engage with the square holes 204A and 204B formed in the large-diameter portion 202, and the engagement locks the connection state between the connector plug 100 and the connector socket 200, thereby preventing the connector plug 200 from coming off. 6 shows the locked state.

[0005] To separate them, the handle portions 105A and 1
The locking claws 104A and 104B can be pulled apart by displacing the locking claws 104A and 104B out of engagement with the square holes 204A and 204B.

[0006]

As shown in FIGS. 5 and 6, the conventional connector plug 100 and connector socket 200 have a drawback that the spring pieces 103A and 103B are greatly protruded, so that their shapes become large. . Also, the spring pieces 103A and 103B are insulated bodies 101 and 201.
There is also a drawback that if they protrude greatly outside the, they are easily broken.

An object of the present invention is to provide a connector plug and a connector socket which can be made compact while having a lock mechanism.

[0008]

According to the present invention, there is provided a tubular portion formed of an insulating material and having a contact receiving hole in a shaft core, and a predetermined distance from an outer peripheral surface of the tubular portion which is folded back from a front end side of the tubular portion. And a spring piece formed on the outer peripheral surface of the outer cylinder and provided with a connecting portion on the distal end side of the outer cylinder and extending from the connecting portion to the rear end side of the outer cylinder. And a locking claw formed at the extended free end of the spring piece from the peripheral surface of the outer cylinder, and an inclined surface formed to face one of the locking claws in a circumferential direction of the outer cylinder. Along with constituting the plug, the present invention further includes a cylindrical receiving portion formed of an insulator, having an opening surface for receiving the outer cylinder of the connector plug, and having the other end closed, and a closed end of the receiving portion. It is planted so that it projects toward the opening surface, A connector socket is constituted by a pin contact that comes into contact with the female contact stored in the storage hole, and a square hole formed in the cylindrical portion that forms the receiving portion and that engages with a locking claw formed in the connector plug. is there.

By engaging the locking claw with the square hole, the connector plug and the connector socket are prevented from coming off and locked. Of course, in this locked state, it is possible to disengage the connector plug and the connector socket from the engaged state with the square hole by the inclined surface formed on the locking claw only by rotating the connector plug and the connector socket in opposite directions. As a result, the unlocking operation can be performed without projecting the spring piece out of the insulating body, so that there is an advantage that the shapes of the connector plug and the connector socket can be reduced.

Further, since the spring piece does not protrude from the insulating body to the outside, the rate of breakage of the spring piece is reduced, and improvement in reliability can be expected.

[0011]

FIG. 1 shows an embodiment of a connector plug 100 and a connector socket 200 according to the present invention.
5 and 6 are denoted by the same reference numerals. The spring pieces 103A and 103B formed on the connector plug 100 according to the present invention are formed in parallel with the outer peripheral surface of the cylindrical portion 111 in which the female contacts 107 are stored. In the illustrated embodiment, the spring pieces 103A and 103B are
゜ The case where a pair of spring pieces are provided facing each other is shown,
It is not always necessary to provide the pair of spring pieces 103A and 103B, and even a single spring piece can achieve the object of the present invention.

That is, the connector plug 1 according to the present invention
In the case of 00, the insulating body 101 and the tubular portion 111 are integrally formed, and the female contact 107 is stored in the hollow portion of the tubular portion 111. The outer tube 112 is formed by being folded back from the outer periphery of the front end side of the cylindrical portion 111 at a predetermined interval from the outer periphery of the cylindrical portion 111, forming a kerf in the outer cylinder 112, and forming the spring piece 103A by forming the kerf. And 103B are formed.

The spring pieces 103A and 103 are both outer cylinders 112.
Has a connecting portion with the outer cylinder 112 on the front end side, and is formed to extend along the core axis of the outer cylinder 112 from the front end side to the rear end side. Outer cylinder 11
2 can be freely displaced in the diameter direction. Locking claws 104A and 104B are formed at the rear ends of the spring pieces 103A and 103B so as to protrude outward. The locking claws 104A and 104B have forward inclined surfaces F (see FIG. 3).
The front radially inclined surface F has a structure capable of entering the inside of the receiving portion 209 provided in the mating connector socket 200.

In the present invention, locking pawls 104A and 104 are provided.
In addition to the inclined surface F facing forward, an inclined surface P (see FIGS. 3A and 3B) facing one of the circumferential directions of the fitting portion 102 is formed on B.
The inclined surface P is formed in the same direction with respect to the locking claws 104A and 104B. In this embodiment, a pair of keys 113 are formed on the outer cylinder 112 as shown in FIG.
The case is shown in which the key 113 restricts the mutual rotation range of the connector plug 100 and the connector socket 200.

Next, the connector socket 20 according to the present invention will be described.
The structure of 0 will be described. The connector socket 200 has a cylindrical receiving portion 209 having an inner diameter for receiving the outer cylinder 112 of the connector plug 100, square holes 204A and 204B formed in the receiving portion 209, and is supported by projecting from a closed end face of the receiving portion 209. Pin contact 207 and receiving part 2
09 and a gasket 205 mounted on the closed end face.

When the outer cylinder 112 of the connector plug 100 is fitted into the receiving portion 209, the spring pieces 103A and 103B of the connector plug 100 have the inclined surfaces F formed on the locking claws 104A and 104B engaged with the front end of the receiving portion 209. The locking claws 104A and 104B are displaced inward in accordance with the inclination of the inclined surface F, and the locking claws 104A and 104B
Invades inside 9 At this time, the pin contact 207
Enters the contact receiving hole 106 of the connector plug 100 and comes into contact with the female contact 107.

The locking claws 104A, 104B and the square hole 20
4A and 204B, the locking claw 104
A and 104B enter square holes 204A and 204B,
The connector plug 100 and the connector socket 200 are locked (FIG. 3B). In this locked state, as shown in FIG.
5 and maintain the waterproof structure.

To release the locked state, the locking claw 10 is used.
4A and 104B are formed in the square holes 204A and 204B.
What is necessary is just to rotate the connector plug 100 or the connector socket 200 in the direction in which the connector plug 100 or the connector socket 200 comes into contact with the edge of the connector 04B. When the inclined surface P is rotated in a direction of contacting the edges of the square holes 204A and 204B, the locking claws 104A and 104B are displaced inward according to the inclined surface P, and become inside the inner wall of the receiving portion 209 (see FIG. 4B). It is released from the engagement with the square holes 204A and 204B.

As shown in FIG. 4A and FIG.
For example, a key groove 210 is formed on the inner wall surface at an angle of 60 ° to 80 °, and a key 113 formed on the outer periphery of the outer cylinder 112 is inserted into the key groove 210 to thereby connect the connector plug 100. And connector socket 200
5 shows a case in which the amount of the rotation stroke is restricted to the angle range of the key groove 210.

[0020]

As described above, according to the present invention, the inclined surfaces P which are circumferentially opposed to the locking claws 104A and 104B are formed, and the connector plug 100 and the connector socket are formed by forming the inclined surfaces P. The operation of locking and the operation of releasing the locked state can be performed by rotating the two in a twisting direction.

Therefore, since the spring pieces 103A and 103B do not need to protrude outside the insulating bodies 101 and 201, the overall shape can be reduced in size. Further, the spring pieces 103A and 103B are
The spring pieces 103A, 1 are not exposed to the outside of the
Accidents that damage 03B are unlikely. Therefore, there is obtained an advantage that it is possible to provide a small-sized connector having high durability.

[Brief description of the drawings]

FIG. 1 is a sectional view for explaining an example of the structure of a connector plug and a connector socket according to the present invention.

FIG. 2 is a sectional view for explaining a state in which the connector plug and the connector socket according to the present invention are fitted.

FIG. 3 is a plan view for explaining the operation of fitting and disengaging the connector plug and the connector socket according to the present invention.

FIG. 4 is a sectional view for explaining a locking operation and a releasing operation of the connector plug and the connector socket according to the present invention.

FIG. 5 is a cross-sectional view for explaining the structure of a conventional connector plug and connector socket.

FIG. 6 is a cross-sectional view for explaining a fitting state of the conventional connector and the connector socket shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 100 Connector plug 101 Insulated body 102 Fitting part 103A, 103B Spring piece 104A, 104B Locking nail F, P Inclined surface 106 Contact storage hole 107 Female contact 111 Tube part 112 Outer cylinder 200 Connector socket 201 Insulated body 204A, 204B Square hole 205 Gasket 207 Pin contact 209 Receiver

Claims (6)

[Claims] 1. A cylindrical portion formed of an insulating material and having a contact receiving hole in a shaft core; and B. formed at a predetermined distance from the outer periphery of the cylindrical portion by being folded from the front end of the cylindrical portion. C, a spring piece formed by a cut groove formed in the outer cylinder; and D, a locking claw formed at an extended free end of the spring piece from a peripheral surface of the outer cylinder. A connector plug comprising: an inclined surface formed to face one of the locking claws in the circumferential direction of the outer cylinder. 2. A, a cylindrical receiving portion formed of an insulating material and having an opening surface for receiving an outer cylinder formed in the connector plug, the other end of which is closed, and B, a closed end of the receiving portion. A pin contact that projects from the connector plug toward the opening surface and contacts a female contact stored in the contact receiving hole of the connector plug; and C, a cylindrical portion that forms the receiving portion; And a square hole that engages with the locking claw formed in the connector socket. 3. The connector plug according to claim 1, wherein said spring piece is formed so as to face the peripheral surface of said fitting portion by about 180 °. 4. The connector plug according to claim 3, wherein the inclined surfaces formed on the plurality of locking claws are formed in the same circumferential direction of the outer cylinder. 5. The connector socket according to claim 2, wherein said square hole is formed approximately one of said cylindrical portion forming said receiving portion.
A connector socket formed at a position facing 80 °. 6. The connector socket according to claim 2, wherein a gasket is attached to a closed end of said receiving portion, and a fitting portion of a connector plug is pressed against said gasket to form a waterproof structure.