JP2003288958A - Receptacle connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a receptacle connector having an improved structure capable of canceling a pressing frictional force applied to an insertion pin of a conductive terminal, and thus preventing a contact elastic piece from moving upward or being unreasonably deformed when the conductive terminal is inserted into a circuit board. <P>SOLUTION: This receptacle connector of the invention is used for connecting other electronic components to the circuit board, and includes an insulating body and a plurality of conductive terminals. The insulating body comprises a joint surface connected to the circuit board, an abutting surface close to the other electronic components, and a plurality of terminal holes penetrating the joint surface and the abutting surface. One of sidewalls of the terminal hole forms a lock groove in the joint surface. The conductive terminals each comprise the contact elastic piece connected to an abutting electronic component, the insertion pin, and a tension arm engaged with a recessed groove between the terminal holes of the insulating body. Through the structure, when the insertion pin is inserted into the circuit board, the tension arm of each conductive terminal is fitted into the recessed groove in the insulating body, and the conductive terminal is thereby pressed. This prevents the terminal from moving upward and from being curved and deformed. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kind of receptacle connector, and more particularly to a receptacle connector having conductive terminals assembled on a circuit board in an interfering manner.

[0002]

2. Description of the Related Art In the first place, early receptacle connectors can be electrically connected to a circuit board by being directly soldered to the circuit board. The conductive terminal of the receptacle connector has an elongated sheet-shaped insertion pin, and when the conductive terminal is attached to the insulating body and then connected to the circuit board, the insertion pin corresponds to the circuit board. It is necessary to solder in the position. However, in such a connecting method, a large amount of heat is generated in the process of soldering, which causes the circuit board to be deformed, and
Since many soldering solvents are required, the cost is high and the environment may be polluted. Following this, other connection schemes were devised. That is,
A hole was opened in the circuit board, and one eyelet was installed on the insertion pin of the conductive terminal. When connecting, by pushing the insertion pin of the conductive terminal into the hole of the circuit board by external force,
The eyelets of the insertion pins interfere with the circuit board and can be strongly connected to the circuit board without soldering.

4 and 5 disclose a kind of conventional receptacle connector. The receptacle connector 5 includes an insulating body 51 and a conductive terminal 52. The insulating body 51 includes a joint surface 511 connected to the circuit board, a contact surface 512 close to other electronic components, and a terminal hole 513 penetrating the contact surface and the joint surface. The conductive terminal 52 has a contact elastic piece 521.
A base 522, a localization projection 523, and an insertion pin 542 connected to the circuit board. This insertion pin 542
The eyelet 5241 was installed in the central part of. When assembled, the contact elastic piece 521, the base 522 and the localization projection 5
23 is assembled directly to the insulating body and
The terminal and the insulating body are locked by 3. When connecting to the circuit board 53, by inserting the insertion pin 524 into the insertion hole of the circuit board, the eyelet 5241 of the insertion pin in the conductive terminal causes interference force that presses against the insertion hole 531 of the circuit board. And both electrical connections can be realized.

However, due to the aforementioned interference force, the conductive terminal 5
2 is moved upward with respect to the insulating main body 51, and when the contact elastic pieces 521 of the conductive terminals move until they come into contact with the insulating main body 51, the contact elastic pieces 521 are pressed, bent and deformed. This resulted in poor electrical contact.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved receptacle connector having a kind of structure, since the receptacle connector can cancel the pressing frictional force received by the insertion pin of the conductive terminal. When the conductive terminal is inserted into the circuit board, the conductive terminal can be prevented from being bent, and the conductive terminal can be prevented from moving upward or being deformed improperly.

[0006]

The receptacle connector of the present invention is used for connecting another electronic component to a circuit board and includes an insulating body and a conductive terminal.
The insulating body includes a joint surface connected to the circuit board, a contact surface close to other electronic components, and a plurality of rows of terminal holes penetrating the joint surface and the contact surface. The rib between the two terminal holes forms a locking groove on the joint surface.
The conductive terminal includes a contact elastic piece that electrically connects to the contact electronic component, a tension arm that interferes with the circuit board, includes an insertion pin, and fits a groove of a rib between the terminal holes of the insulating body. Is provided. When the receptacle connector is pushed into the circuit board, the tension arm of the conductive terminal is fitted into the groove of the insulating body to push the conductive terminal, which prevents the upward movement of the terminal and prevents the terminal from moving upward. Curvature deformation with respect to the contact elastic piece can also be avoided, and excellent mechanical and electrical functions of the receptacle connector are guaranteed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, as shown in FIGS. 1 and 2, a receptacle connector 4 of the present invention comprises another electronic component (not shown).
Is used to connect to the circuit board 3,
It includes a conductive terminal 1 and an insulating body 2. When assembled, the portion of the conductive terminal 1 is housed in the insulating body 2, and the portion of the conductive terminal 1 extending to the insulating body 2 is used for interfering with the circuit board 3.

The conductive terminal 1 has a base 11 and a base 11
Both arm portions 12 which are perpendicular to and are bent in the same direction. The base portion 11 is relatively narrow in the direction matching the circuit board, and the insertion pin 111 having the eyelet 1110 installed in the middle portion extends out. A portion between the base portion 11 and the insertion pin 111 is a connection portion 110, and the connection portion 110
Is a substrate 1100 in which portions close to the eyelets 1110 are perpendicular to the insertion pins 111 along both side edges of the connection portion 110.
Of the substrate 1100 is extended, and both tension arms 1101 are bent and extended in the opposite direction of the arm portion 12. In the arm portion 12, contact elastic pieces 121 are respectively extended in a direction away from the insertion pin 111, and the contact elastic pieces 121 are formed in arcuate shapes opposed to each other and are folded back outward, respectively, and have a large opening. It is possible to configure an elastic contact portion having a small intermediate portion. The arm portion 12 can position the insulating main body 2 by extending the localization hooking portion 122 along the bending direction.

Referring also to FIG. 3, the insulating body 2 of the receptacle connector of the present invention has a joint surface 21 for connecting to the circuit board 3 and an abutment surface 22 adjacent to other electronic components (not shown). And a plurality of rows of terminal holes 23 penetrating the joint surface 21 and the contact surface 22. One opening of the terminal hole 23 in the contact surface 22 is a guide hole 231, and this opening is a large opening on the contact surface 22 side and has an inverted trapezoidal shape that gradually shrinks inward of the insulating body 2. Form.
One opening of the terminal hole 23 on the joint surface 21 is an insertion hole 233.
And the rib portion 2 between the two insertion holes in the same row and adjacent to each other.
12 (see FIG. 1) is a locking groove 211 at the joint surface.
Is opened. A rib 212 for engaging the tension arm 1101 of the conductive terminal penetrates the locking groove 211. The cavity in the insulating body 2 is the accommodation chamber 2 of the terminal hole 23.
32, the inner wall of the accommodation chamber 232 is provided with the localization recessed groove 2321 at a position corresponding to the localization hooking portion 122 of the conductive terminal 1.

The conductive terminal 1 of the receptacle connector 4 is
After being inserted into the insulating main body 2 through the insertion hole 233, the tension arm 1101 of the conductive terminal 1 is engaged with the locking groove 211 of the insulating main body 2, and the localization hook portion 122 of the conductive terminal 1 is inserted.
The elastic contact portion between the contact elastic pieces 121 corresponds to the guide hole 231 of the terminal hole of the insulating body 2 in alignment with the localization groove 2321 of the insulating body 2. When the insertion pin 111 of the conductive terminal 1 is pushed into the insertion hole 31 of the circuit board 3,
The pressing frictional force received by the insertion pin 111 causes the tension arm 1101 and the locking groove 2 that engages the tension arm 1101.
11, the engaging groove 211 can cancel the pressing frictional force, the upward movement of the conductive terminal or the bending deformation can be avoided, and the good mechanical and electrical characteristics of the receptacle connector 4 can be avoided. Function can be secured.

All in all, the present invention certainly meets the requirements of patent applications and should be registered by law. Also, the above is merely specific examples according to the present invention, and does not limit the scope of the present invention. Further, any modifications or changes in details that can be made based on the present invention shall fall within the scope of the claims of the present invention.

[Brief description of drawings]

FIG. 1 is an exploded view of a receptacle connector of the present invention and a circuit board assembled together.

FIG. 2 is a three-dimensional view of conductive terminals of the receptacle connector of the present invention.

3 is a sectional view taken along the line III-III direction of FIG.

FIG. 4 is an exploded view of a conventional receptacle connector according to the present invention.

5 is a cross-sectional view taken along the line VV direction in FIG.

[Explanation of symbols]

1 Conductive terminal 11 base 110 connection 1100 substrate 1101 tension arm 111 Insertion pin 1110 Eyelet 12 Arm 121 Contact elastic piece 122 Localization hook 2 Insulation body 21 Bonding surface 22 Contact surface 23 terminal hole 231 Guide hole 232 accommodation room 2321 Stereotaxic groove 233 insertion hole 211 locking groove 212 ribs 3 circuit board 31 insertion hole 4 Receptacle connector

Claims (6)

[Claims] 1. A receptacle connector for electrically connecting another electronic component to a circuit board, comprising a contact surface and a joint surface in proximity to the electronic component and the circuit board, respectively, and a plurality of terminal holes having the joint surface. An insulating body that is recessed in the terminal hole and penetrates to the abutting surface, and has a locking groove recessed on the joint surface on one side wall of the terminal hole; An insertion pin having an eyelet is installed on one side edge of the base that is adjacent to the joint surface of the insulating body and that includes an arm portion that is bent and extended in the same direction from the opposite side edges of the base. The base portion and the insertion pin are connected at the connection portion, and when the conductive terminal is assembled in the terminal hole of the insulating body, the connection portion and the locking groove are aligned to provide a supporting force to the conductive terminal, The width of the connecting part is narrower than the width of the base part and the conductive terminal is installed. Characterized in that it comprises a. 2. The receptacle connector according to claim 1, wherein the connection portion includes a substrate and a tension arm that is perpendicular to the substrate and extends in the same direction. 3. The tension arms of the conductive terminal are
The receptacle connector according to claim 1, wherein the receptacle connector can be fixed according to the locking groove of the insulating body by being curved and parallel to the same direction. 4. The contact elastic pieces of the arm portions of the conductive terminal are respectively extended in the contact surface direction, and the contact elastic pieces are formed in bisymmetrical arcuate shapes. The receptacle connector according to claim 1, wherein the receptacle connector is bent to have a large opening and a small intermediate portion. 5. The receptacle connector according to claim 1, wherein the insertion pin of the conductive terminal has a base portion extending in a direction away from the contact elastic piece. 6. The receptacle connector according to claim 1, wherein the engaging groove of the insulating body communicates with both adjacent terminal holes.