JP2502803Y2 - connector - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector, and more particularly to a connector which is fitted to a mating connector such as a flat printed board.

[0002]

2. Description of the Related Art An example of a conventional connector is shown in FIGS.
6 is shown. The connector 1 has an insulator 2 and a conductive contact 5 incorporated in the insulator 2. As shown in FIG. 14, a fitting groove 3 for receiving a mating connector P such as a printed circuit board is formed on one surface of the insulator 2. Further, a contact accommodating hole 4 is formed in the insulator 2 so as to be continuous with the fitting groove 3 and penetrate through the insulator 2 on the side opposite to the one surface. A contact 5 is accommodated in the contact accommodating hole 4. The contact 5 has a holding portion 5a at its intermediate portion in the axial direction. A contact spring portion 5b is connected to one end of the holding portion 5a in the axial direction, and a cable connecting portion 5c is connected to the other end of the holding portion 5a in the axial direction. A contact portion 5d is formed near the tip of the contact spring portion 5b. The end of the cable 6 is connected to the cable connecting portion 5c by crimping.

The contact 5 is inserted into the contact accommodating hole 4 from a contact insertion port provided on the side opposite to the one surface of the insulator 2 with the contact spring portion 5b as the front side.
At this time, first, the tip of the insertion side of the contact 5 comes into contact with the contact fixing spring portion 7 formed on one wall portion of the insulator 2, so that the contact fixing spring portion 7 is once bent and deformed outward. Further, the contact 5 is moved and inserted to a predetermined position. Then, the convex portion 7a formed on the contact fixing spring portion 7 returns to the inside of the contact hole 8 formed on the contact 5. In this state, the contact 5 is prevented from being pulled out to the opposite side of the insulator 2. At this time, the contact spring portion 5b fits into the fitting groove 3 and the contact portion 5d.
It is possible to obtain a state in which is projected and contacts the mating connector P.

[0004]

In the structure of the conventional connector as described above, when the contact 5 is assembled to the insulator 2, the contact 5d remains exposed, so that the contact 5d during the assembling operation. The area around 5d may be deformed. That is, since the contact 5 is formed by punching a thin plate and bending the contact 5, when the contact 5 may hit the outer wall of the insulator 2 when the contact 5 is inserted into the contact accommodating hole 4, the contact 5d or the contact 5 may be damaged. External force is applied to itself, and the contact 5 is deformed. Therefore, the contact with the mating connector P is hindered.

Therefore, an object of the present invention is to prevent the contact portion of the contact from being deformed by an external force when the contact is assembled to the insulator.

[0006]

According to the present invention, the insulator includes an insulator and a conductive contact incorporated in the insulator, and the insulator has a fitting groove formed on one surface and a fitting groove formed in the fitting groove. A contact accommodating hole penetrating the contact insertion opening on the opposite side to the one surface,
The contact has a holding portion, a contact spring portion connected to one end of the holding portion in the axial direction, and a cable connection portion connected to the other end of the holding portion in the axial direction. In a connector that has a contact portion that comes into contact with a mating connector in a fitting groove, and positions the contact spring portion in the contact receiving hole with the contact spring portion forward and the contact portion in the fitting groove. An insulating protective member that covers the contact portion and is movably arranged in the axial direction on the contact, and the insulator locks the protective member in the contact receiving hole in the insertion direction into the fitting groove. A connector having a locking portion for exposing and positioning the contact portion is obtained. Further, according to the present invention, the protection member is disposed at the contact portion, and is positioned at the cable connection portion with the first pair of protrusions that sandwich and lock the contact portion in the axial direction. A connector having a second pair of protrusions that locks the cable connecting portion in the axial direction is obtained.

[0007]

[Operation] To assemble the contact to the insulator,
The first pair of protrusions of the protection member is locked to the contact portion. In the protection member, the second pair of protrusions are moved and locked to the other portion of the contact, and the contact portion is exposed in the fitting groove. The protection member is in a state in which the first pair of protrusions is engaged with the contact spring portion of the contact so as to be sandwiched from the front and rear, and the protection member protects the contact portion of the contact. Further, a locking portion is formed at the connecting portion with the contact receiving hole. The second pair of protrusions locks the protective member to the cable connection portion when the assembling is completed.

When the contact is inserted through the contact insertion opening of the insulator, the protection member is locked by the locking portion and cannot be moved. Therefore, the second pair of protrusions are engaged with each other so as to sandwich the cable connecting portion of the contact from the front and rear. Therefore, the contact portion of the contact is exposed from the protective member and enters the fitting groove of the base insulator to be in contact with the mating connector.

[0009]

1 shows an embodiment of the connector of the present invention. 2 to 11 show each part used in the connector of FIG.

Referring to FIGS. 1 and 2, the connector includes a cover insulator 11, a base insulator 12 combined with the cover insulator 11, and a plurality of conductive contacts (socket contacts) incorporated in the base insulator 12. 15 and. As shown in FIGS. 8 and 9, the cover insulator 11 and the base insulator 12 are detachably engaged with each other. That is, the cover insulator 11 is provided so as to face one surface of the base insulator 12. The cover insulator 11 has engaging arms 11a at both ends,
11b extend to one side so as to face each other. Further, on both side walls perpendicular to one surface of the base insulator 12, projection pieces 12a that engage with the engagement arms 11a and 11b are formed.

Further, as shown in FIG. 10, a mating groove 13 for receiving a mating connector P (see FIGS. 12 and 14) such as a printed circuit board is formed on one surface of the base insulator 12. There is. Further, the base insulator 12 has a contact accommodating hole 14 that is continuously provided in the fitting groove 13 and that penetrates the opposite surface of the base insulator 13.
Are formed. A contact 15 is accommodated in the contact accommodating hole 14. In the base insulator 12 in FIGS. 1 and 2, the contacts 15 are arranged in two rows in the contact receiving hole 14 in a direction orthogonal to the paper surface, and the contact 15 on the left side of the paper is completely received in the contact receiving hole 14. The contact 15 on the right side of the drawing shows the state before being inserted into the contact receiving hole 14.

The contact 15 is, as shown in FIG.
A holding portion 15a is provided at an intermediate portion in the axial direction. A contact spring portion 15b is connected to the holding portion 15a at one end in the axial direction. A cable connecting portion 15c is provided at the other end of the holding portion 15a.
Is connected. In addition, the contact 15 has a holding portion 1.
It has a bottom portion 15e connected to one end of 5a so as to face the contact spring portion 15b. A contact portion 15d curved to one side is formed near the tip of the contact spring portion 15b. A core wire crimping piece 115 for crimping the core wire of the cable 16 and a crimp portion 116 for crimping and crimping the covering portion of the cable 16 are formed in the cable connection portion 15c. A notch 117 is formed between the core wire crimping piece 115 and the crimp portion 116. In this way, the end portion of the cable 16 is connected to the contact 15 by crimping.

Further, as shown in FIG. 10, a contact fixing spring portion 17 is formed on one of the wall portions perpendicular to one surface of the base insulator 12. The contact fixing spring portion 17 has a convex portion 17a formed at its tip. The bottom portion 15e of the contact 15 has a convex portion 7a.
Is formed with a contact hole 18 that engages with. Here, the contact hole 18 for locking the contact 15 and the convex portion 7a of the contact fixing spring portion 17 are primary locking means. That is, the convex portion 7 a of the contact fixing spring portion 17 serves to lock the contact 15 from being pulled out in the direction opposite to the base insulator 12.

Further, the contact 15 is inserted into the contact receiving hole 14 from the side opposite to the one surface of the base insulator 12 toward the one surface. At this time, first, the contact fixing spring portion 7 comes into contact with the tip of the contact 15 on the insertion side, so that the contact fixing spring portion 7 is once bent and deformed outward. Further, the contact 15 is moved to insert the contact 15 to a predetermined position. Then, this contact fixing spring portion 1
The convex portion 17a formed in 7 returns to the inside of the contact hole 18, and the contact 15 prevents the insulator 12 from being pulled out in the opposite direction. At this time, the contact spring portion 15b of the contact 15 is inserted into the board fitting groove 13 at its contact portion 15d.
And contacts the mating connector P.

Further, as shown in FIGS. 3 to 7, the contact 15 is provided with a tubular protective member 20 made of an insulating material so as to cover the contact portion 15d and the bottom portion 15e facing the contact portion 15d. ing. The protection member 20 includes a first pair of protrusions 21a and 21b on a first facing surface 20a facing the contact portion 15d, and a second pair of facing surfaces 20b connected to the first facing surface at a right angle to the second facing surface 20b. It has a pair of protrusions 22a and 22b. The second pair of protrusions 22a and 22b is formed as a pair in the longitudinal direction of the contact spring portion 15b. The first pair of protrusions 21a and 21b sandwich and protect the contact portion 15d in the axial direction while being held by the contact portion 15d. The second pair of protrusions 22a, 22b locks the cable connecting portion 15c in the axial direction while being located in the cable connecting portion 15c.

The contact 15 is connected to the base insulator 1
In order to assemble the second protection member 20 with the first projection pair 2
The contacts 1a and 21b are locked to the contact portion 15d, and the contact 1
5 is attached so as to cover the outer peripheries of the contact portion 15d and the bottom portion 15e. In addition, the protective member 20 includes the cable connecting portion 15c.
And the second pair of protrusions 22a and 22b are moved to the
6 is locked in the axial direction. In this state, the contact portion 15d is exposed in the fitting groove 13.

Now, with the contact 15 as the contact spring portion 15b in the front, the contact receiving hole 14 is placed in the lower side of FIG.
Insert from the contact insertion port 24. Therefore, an insertion hole 25 slightly larger than the protective member 20 is formed in the contact receiving hole 14 from the insertion port 24 in the insertion direction. Since the insertion hole 25 is larger than the contact accommodating hole 14, a locking portion (step portion) 26 is formed at the connecting portion with the contact accommodating hole 14. In the protection member 20, the first pair of protrusions 21 a and 21 b is the contact spring portion 15 b of the contact 15.
The protective member 20 protects the contact portion 15d of the contact 5 in a state of being engaged so as to be sandwiched from the front and rear.

Further, when the contact 15 is continuously inserted, the protection member 20 is locked by the locking step portion 26 and cannot be moved. Therefore, the second pair of protrusions 22a and 22b are in a state of being engaged with each other so as to sandwich the caulking portion 116 of the contact 15 from the front and rear. That is, in the state where the end portion of the cable 16 is connected to the cable connection portion 15c by crimping, the crimping portion 1 is larger than the crimp height dimension of the core wire crimping portion 115.
Since the height dimension of 16 becomes large, the second pair of protrusions 22
The a and 22b are in a state of being engaged so as to sandwich the caulking portion 116 of the contact 15 from the front and rear. Therefore, the contact portion 15d of the contact 15 comes off from the protective member 20 and is exposed, and the fitting groove 1 of the base insulator 12 is formed.
It enters 3 and is positioned. In this state, the fitting groove 13
When the printed board P is fitted to the contact point 15e, the contact portion 15e elastically contacts the printed board P. The printed circuit board P
As shown in FIG. 12, a plurality of conductive portions 30 are provided on both surfaces of the tip portion inserted into the fitting groove 13. These conductive portions 30 make contact with the contact portions 15d of the contacts 15 in a one-to-one correspondence.

The cover insulator 11 has a protruding piece 27. In the protrusion 27, the convex portion 17 a of the contact fixing spring portion 17 is the contact hole 18 of the contact 15.
When engaged with, as shown in FIGS. 8 and 11, it engages with the gap S between the contact fixing spring portion 17 and the base insulator 12. The contact 15 and the base insulator 12 are secondarily locked by the protrusion piece 27 entering the gap S. Here, the contact fixing spring portion 17 and the protruding piece 27 serve as secondary locking means.

[0020]

According to the present invention, an insulating protective member that covers the contact portion and movably holds the contact portion is provided, and the protective member is locked in the contact receiving hole in the insertion direction to expose the contact portion in the fitting groove. Since the locking portion is provided for positioning, the contact portion is covered and protected by the protective member, and the contact can be prevented from being deformed when the contact and the insulator are assembled.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a connector of the present invention.

2 is a sectional view taken along the line II-II of the connector of FIG.

FIG. 3 is a perspective view of a protection member used in the connector of FIG.

4 is a cross-sectional view taken along the line Iv-Iv of the protection member of FIG.

5 is a v-v sectional view of the protection member of FIG.

FIG. 6 is a perspective view of the contact of FIG.

FIG. 7 is a perspective view showing a state in which a protective member is provided on the contact shown in FIG.

FIG. 8 is an exploded perspective view of the cover insulator and the base insulator of FIG.

9 is a perspective view showing an assembled state of the cover insulator and the base insulator of FIG. 1. FIG.

10 is a perspective view in which a part of the base insulator of FIG. 1 is sectioned.

FIG. 11 is a perspective view in which a part of the cover insulator of FIG. 1 is sectioned.

12 is a plan view showing a main part of a mating connector that fits into the connector of FIG. 1. FIG.

FIG. 13 is a perspective view of a conventional connector.

FIG. 14 is a sectional view of a conventional connector.

15 is a perspective view showing a main part of a contact used in the connector of FIG.

16 is a perspective view showing a main part of an insulator used for the connector of FIG.

[Explanation of symbols]

 1 Connector 2 Insulator 3 Fitting Groove 4 Contact Receiving Hole 5 Contact 6 Cable 11 Cover Insulator 12 Base Insulator 13 Fitting Groove 14 Contact Receiving Hole 15 Contact 15b Contact Spring Part 15c Cable Connection Part 15d Contact Part 18 Contact Hole 17 Contact Fixing Spring Part 20 Protective member 21 First pair of protrusions 22 Second pair of protrusions 26 Locking step P Printed circuit board

Claims (2)

(57) [Scope of utility model registration request] 1. An insulator, and an electrically conductive contact incorporated in the insulator, wherein the insulator has a fitting groove provided on one surface and a fitting groove continuous with the fitting groove and opposite to the one surface. The contact has a contact receiving hole penetrating through the contact insertion port, and the contact is connected to a holding portion, a contact spring portion connected to one axial end of the holding portion, and the other axial end of the holding portion. A cable connecting portion, the contact spring portion has a contact portion that comes into contact with the mating connector in the fitting groove, and the contact spring portion is forward and the contact is inserted from the contact insertion port to the contact receiving hole. In the connector which inserts and positions the contact portion in the fitting groove, the connector has an insulating protective member which covers the contact portion and is movably arranged in the axial direction. A connector comprising: a contact accommodating hole for locking the protective member in the insertion direction, and a locking portion for exposing and positioning the contact portion in the fitting groove. 2. The protection member includes a first pair of protrusions which are arranged on the contact portion and sandwich and lock the contact portion in the axial direction, and the cable connecting portion which is located at the cable connecting portion. 2. The connector according to claim 1, further comprising a second pair of protrusions locking the portion in the axial direction.