JP3639977B2 - connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to a connector that electrically and mechanically connects devices mounted on a vehicle or the like that accompanies vibration.
[0002]
[Prior art]
FIG. 8 shows a conventional connector. Referring to FIG. 8, the connector includes a substantially box-shaped insulator 81, a conductive contact 83 held in the insulator 81, and a retainer 85 for preventing the contact 83 from coming off from the insulator 81. including.
[0003]
The contact 83 is connected to one end of the cable 87, is inserted in the insulator 81 in the insertion direction I, and is held by the insulator 81. The retainer 85 is inserted in the insertion direction I and locked to the insulator 81 in the insulator 81 in order to prevent the contact 83 held by the insulator 81 from coming off in the direction opposite to the insertion direction I.
[0004]
The insulator 81 is formed with a receiving portion 81a into which the contact 83 and the retainer 85 are inserted, and the retainer 85 is received. The retainer 85 has a plate-shaped main body 85a and a pair of elastic pieces 85b that are deformed by being pushed toward the main body 85a by the inner wall surface 81b of the storage 81a when inserted into the storage 81a. .
[0005]
One end of the elastic piece 85b is joined to the main body 85a. The elastic piece 85b is formed with a lock portion 85c that engages with a lock receiving portion 81c formed on the inner wall surface of the insulator 81 when the retainer 85 is inserted into the housing portion 81a.
[0006]
After the contact 83 to which the cable 87 is connected is inserted into the accommodation portion 81a of the insulator 81 in the insertion direction I, the retainer 85 is inserted into the accommodation portion 81a in the insertion direction I. At this time, the elastic piece 85b is deformed and inserted while being pushed toward the main body 85a by the inner wall surface 81b of the housing 81a. Then, when the retainer 85 is inserted to a predetermined position in the accommodating portion 81a, the lock portion 85c enters the lock receiving portion 81c and is locked.
[0007]
Thus, since the lock portion 85c of the elastic piece 85b is locked by being locked to the lock receiving portion 81c, the contact 83 can be prevented from coming off in the direction opposite to the insertion direction I. A plurality of holes 81e are formed in the wall portion of the insulator 81 facing the tip side of the contact 83, and a mating contact of a mating connector (not shown) is inserted into these holes 81e so that the contacts 83 are in a one-to-one relationship. Contact.
[0008]
As a conventional technique, a connector having a retainer is disclosed in Japanese Patent Laid-Open No. 7-37639.
[0009]
[Problems to be solved by the invention]
However, since one end of the elastic piece 85b of the retainer 85 is joined to the main body 85a and has a spring structure that is fixed at one end, the elastic piece 85b that is inadvertently caught during the operation of inserting the retainer 85 into the insulator 81 is inadvertent. There is a problem that deformation, twisting, breakage, etc. of the material occur.
[0010]
Therefore, it is an object of the present invention to prevent inadvertent excessive deformation, to prevent twisting, to improve rigidity, to facilitate handling during work, and to improve contact holding power. To provide a connector.
[0011]
[Means for Solving the Problems]
According to the present invention, the insulator, the conductive contact inserted and held in the insulator, and the contact inserted into the insulator in the insertion direction so as to prevent the contact from slipping in the direction opposite to the insertion direction. In the connector including the retainer that is locked to the insulator, the insulator has a housing portion that houses the contact and the retainer, and the retainer is housed when inserted into the main body portion and the housing portion. by the inner wall surface of the parts is pushed into the main body portion and an elastic piece is elastically deformed, both end portions of the elastic pieces extending into said insertion direction and said opposite direction is joined to the main body portion, The elastic piece is a first lock that is locked to and locked to the insulator when the retainer is inserted to a predetermined position of the housing portion. Has, on the insulator, the have first locking receiving portion formed to lock locking the first locking portion at a predetermined position on one surface of the body portion, the retainer is the housing A second lock portion projecting on the one surface so as to lock to the insulator in the housing portion when inserted into the housing portion, and the second lock portion has a direction in which the elastic piece is elastically deformed. are formed in the direction intersecting said the insulator has a second lock receiving formed to lock engaged with the second locking portion, said body portion, said retainer predetermined An excessive deformation preventing portion that protrudes toward the elastic piece side is formed at a position facing the elastic piece in a deformation direction that approaches the main body when inserted to a position so as to prevent excessive deformation of the elastic piece. ing Connector is obtained, wherein the door.
[0012]
[Action]
According to the connector of the present invention, the contact is inserted into the accommodating portion of the insulator. Thereafter, the retainer is inserted into the accommodating portion in the insertion direction. When the retainer is inserted into the housing portion, the pair of elastic pieces are pushed toward the main body portion by the inner wall surface of the housing portion and deformed. At this time, the elastic piece is deformed and inserted while being pushed toward the side surface of the main body by the inner wall surface of the housing. And if a retainer is inserted to the predetermined position of an accommodating part, a 1st lock part will enter into a 1st lock receiving part, and will be locked. In this state, the contact is prevented from being pulled out in the direction opposite to the insertion direction by the retainer.
[0013]
Further, when the retainer is inserted to a predetermined position of the housing portion, the second lock portion is locked and locked to the second lock receiving portion to prevent the contact from being pulled out and to improve the contact holding force. At the same time, both end portions of the elastic piece are joined to the retainer main body to prevent excessive deformation of the elastic piece in the deformation direction different from the original function at the time of work.
[0014]
Furthermore, the retainer can be removed from the insulator. That is, it can be removed by pressing the elastic piece toward the side surface of the main body to release the lock between the first lock portion and the second lock receiving portion and pulling it out of the insulator. At this time, the elastic piece can be deformed until it comes into contact with the excessive deformation preventing portion, and the unlocking operation can be performed while preventing excessive deformation.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a connector according to the present invention will be described. 1 to 4 show a retainer inserted into a connector according to an embodiment. 5 to 7 show a connector according to an embodiment.
[0016]
1 to 6, the connector includes an insulator 11 having a substantially box shape, a conductive contact 13 (see FIG. 5) held in the insulator 11, and a retainer 15.
[0017]
As shown in FIGS. 1 to 4 and 6, the retainer 15 is a secondary forming component separate from the insulator 11, and includes a substantially plate-shaped main body portion 15 a and a pair of deformable elastic pieces 15 b. Have. The retainer 15 is detachably attached to the insulator 11.
[0018]
The elastic piece 15b is formed in a strip shape that is long in the insertion direction I (see FIGS. 1 and 5) in which the retainer 15 is inserted and in the opposite direction, and both ends are integrally joined to the side surface of the main body portion 15a. I am doing. In addition, the main-body part 15a and the elastic piece 15b can be shape | molded, for example with the same resin material.
[0019]
The retainer 15 is inserted in the insertion direction I and locked and locked to the insulator 11 in the insulator 11 in order to prevent the contact 13 held by the insulator 11 from coming off in the direction opposite to the insertion direction I. .
[0020]
The elastic piece 15b can be deformed so as to approach the side surface of the main body portion 15a in a deformation direction of the elastic piece 15b, that is, a direction orthogonal to a virtual plane including the insertion direction I, and can return to the original state. Therefore, the elastic piece 15b has a spring structure. Furthermore, the 1st lock | rock part 15c which protrudes from the outer surface of the elastic piece 15b is formed in the intermediate part of the elastic piece 15b.
[0021]
The body portion 15a is formed with a pair of excessive deformation preventing portions 15d protruding from a pair of side surfaces of the body portion 15a facing the elastic piece 15b in a direction orthogonal to the insertion direction I in a virtual plane. The excessive deformation preventing portion 15d serves to prevent the elastic piece 15b from being excessively deformed.
[0022]
As shown in FIGS. 1, 5, and 6, the insulator 11 is formed with a storage portion 11 a into which the contact 13 and the retainer 15 can be inserted and stored. The insulator 11 has a groove-shaped first wall on the inner wall surface 11b of the accommodating portion 11a of the insulator 11 so that the first lock portion 15c is locked and locked when the retainer 15 is inserted to a predetermined position. A lock receiving portion 11c (see FIG. 1) is formed.
[0023]
The contact 13 is connected to one end of the cable 17 shown in FIG. 5 and is inserted into the insulator 11 in the insertion direction I and is held by the insulator 11. The contact 13 has a contact portion 13a that contacts a mating contact of a mating connector (not shown).
[0024]
Furthermore, on one surface of the main body portion 15a, a second locking portion that protrudes on one surface of the main body portion 15a so that the retainer 15 is locked to the insulator 11 in the housing portion 11a when the retainer 15 is inserted into the housing portion 11a. 15e is formed. The second lock portion 15e protrudes in a direction crossing the direction in which the elastic piece 15b is elastically deformed. The insulator 11 is formed with a second lock receiving portion 11e so as to be locked to the second lock portion 15e.
[0025]
Now, as shown in FIG. 6, the contact 13 to which the cable 17 is connected is inserted into the accommodating portion 11 a of the insulator 11 in the insertion direction I. Then, as shown in FIG. 7, the retainer 15 is inserted into the accommodating portion 11 a in the insertion direction I. When the retainer 15 is inserted into the housing portion 11a, the pair of elastic pieces 15b are pushed toward the main body portion 15a by the inner wall surface 11b of the housing portion 11a and deformed. At this time, the elastic piece 15b is inserted while being deformed while being pushed by the inner wall surface 11b of the housing portion 11a toward the side surface side of the main body portion 15a. And if the retainer 15 is inserted to the predetermined position of the accommodating part 11a, the 1st lock part 15c will enter into the 1st lock receiving part 11c, and will be locked. In this state, the contact 13 is prevented from being pulled out in the direction opposite to the insertion direction I by the retainer 15. In this way, as shown in FIG. 7, the retainer 15 locks the contact 13 at the distal end in the insertion direction I to the insulator 11, and the second retainer 15 is inserted when the retainer 15 is inserted to a predetermined position in the accommodating portion 11a. The lock portion 15e is locked to the second lock receiving portion 11e.
[0026]
As described above, the contact 13 is prevented from coming off and the holding force of the contact 13 is improved. Furthermore, the excessive deformation preventing portion 15d prevents the elastic piece 15b from being excessively deformed in the deformation direction when the retainer 15 is inserted to a predetermined position of the accommodating portion 11a by contacting the elastic piece 15b.
[0027]
The retainer 15 can be removed from the insulator 11. That is, from the state shown in FIG. 7, the elastic piece 15b is pressed toward the side surface of the main body portion 15a to release the lock between the first lock portion 15c and the first lock receiving portion 11c. The second lock portion 15e and the second lock receiving portion 11e are unlocked and can be removed by being pulled out of the insulator 11. At this time, the elastic piece 15b can be deformed until it comes into contact with the excessive deformation preventing portion 15d, and the unlocking operation can be performed while preventing excessive deformation beyond that.
[0028]
【The invention's effect】
As described above, according to the embodiment, according to the connector of the present invention, the retainer prevents the contact from coming off from the insulator, and locks the first lock portion to the first lock receiving portion. Therefore, the holding force can be improved, and the elastic piece of the retainer has a fixed spring structure with both ends connected to the main body of the retainer, thus preventing twisting and improving the rigidity of the elastic piece, and Excessive deformation in a deformation direction different from the original function during work can be prevented, and handling during work can be facilitated.
[0029]
Moreover, the excessive deformation prevention part formed in the main body part of the retainer can prevent inadvertent excessive deformation without giving excessive deformation of the elastic piece at the time of work.
[Brief description of the drawings]
FIG. 1 is a front view showing a retainer used in an embodiment of a connector according to the present invention.
FIG. 2 is a plan view of the retainer shown in FIG.
FIG. 3 is a partial cross-sectional view of the connector into which the retainer shown in FIG. 1 is inserted.
4 is a bottom view of the retainer shown in FIG. 1. FIG.
FIG. 5 shows an embodiment of the connector according to the present invention, and is a perspective view showing a state before a cable is inserted into the insulator.
6 is a perspective view showing a state before the retainer is inserted into the insulator in the connector shown in FIG. 5. FIG.
7 is a perspective view showing a state after a retainer is inserted into an insulator in the connector shown in FIG. 6. FIG.
FIG. 8 is a plan sectional view showing a conventional connector.
[Explanation of symbols]
11, 81 Insulator 13, 83 Contact 15, 85 Retainer 11a, 81a Receiving portion 11c, 81c First lock receiving portion 11e Second lock receiving portion 15a, 85a Main body portion 15b, 85b Elastic piece 15c First lock portion 15d Excessive deformation prevention portion 15e Second lock portion 85c Lock portion

Claims (3)

Insulator, conductive contact inserted and held in the insulator, and inserted into the insulator in the insertion direction to prevent the contact from slipping in the direction opposite to the insertion direction and locked to the insulator In the connector including a retainer, the insulator has a housing portion that houses the contact and the retainer, and the retainer is inserted into the main body portion and the inner wall surface of the housing portion when inserted into the housing portion. is pushed into the main body side and an elastic piece is elastically deformed, both end portions of the elastic pieces extending into said insertion direction and said opposite direction is joined to the body portion, the elastic pieces, the A first lock portion that engages and locks with the insulator when the retainer is inserted to a predetermined position of the housing portion; The Shureta, a first locking receiving portion formed to engage locks lock the first locking portion at the predetermined position,
One surface of the main body portion has a second lock portion that protrudes onto the one surface so as to be locked to the insulator in the housing portion when the retainer is inserted into the housing portion. The lock portion is formed in a direction intersecting with the direction in which the elastic piece is elastically deformed,
The insulator is formed with a second lock receiving portion that engages and locks with the second lock portion,
In the main body portion, when the retainer is inserted to the predetermined position, the elastic piece side is prevented from being excessively deformed at a position facing the elastic piece in a deformation direction toward the main body side. A connector, characterized in that an excessive deformation preventing portion protruding to the side is formed.   The connector according to claim 1, wherein the retainer is detachably attached to the insulator. 2. The connector according to claim 1, wherein the first lock portion protrudes outward from an outer surface of an intermediate portion of the elastic piece, and the first lock receiving portion is formed on an inner wall surface of the housing portion . A connector characterized by being a groove.

Images