JP3086607U - Electrical connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrical connector which is mounted on a circuit board by surface mounting technology and used for inserting an electronic card. SOLUTION: This device includes a main body and a plurality of electric conduction terminals,
The conductive terminal is mounted in the main body, and includes a welding portion for welding to a circuit board, a contact portion for contacting with an electronic card, and first and second connection portions for connecting the welding portion and the contact portion. And a fixed leg which is bent and extended vertically from a portion adjacent to the first and second connection portions. With the above arrangement,
The conductive terminal can secure an accurate electrical connection with the electric circuit of the circuit board by the adhesive force between the welded portion and the surface of the circuit board or the locking force between the fixing leg and the positioning hole of the circuit board.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a type of electrical connector, and more particularly, to an electrical connector attached to a circuit board by a surface mount technology (SMT).

[0002]

[Prior art]

 In the first place, there are conventional technologies according to the present invention as described in, for example, JP-A-2000-251024 and JP-A-2000-25125. The above-described electrical connector is mounted on a circuit board by surface mounting technology, and is used to insert an electronic card, thereby ensuring electrical connection between the electronic card and the circuit board and maintaining the endurance of the electrical connector. Can be improved.

[0003]

[Problems to be solved by the invention]

 However, since these electrical connectors are attached to the circuit board only in the surface mount type, when the electronic card is inserted, the structure of the plastic body is weak and the conductive terminals receive a large forward force, so the rear end Since the soldered portion is affected and cracks are generated in the soldered portion and the effect is lost, it is not possible to secure a constant electrical connection between the electronic card and the circuit board.

Therefore, in order to improve the electrical connection between the electrical card and the circuit board or to improve the durability of the electrical connector, it is necessary to improve these conventional electrical connectors.

According to the present invention, in order to improve the endurance of assembling with an external electric device (for example, an electronic card, a contact cable receiving port), the electrical connection between the conductive terminal and the circuit on the circuit board is accurately performed. An object of the present invention is to provide an electrical connector capable of ensuring the above.

[0006]

[Means for Solving the Problems]

 The electrical connector of the present invention is mounted on a circuit board by surface mounting technology and is used for inserting an electronic card, and includes a main body and a plurality of electrically conductive terminals. The conductive terminal is mounted in the main body, and includes a welded portion for welding to a circuit board, a contact portion for contacting an electronic card, and first and second connection portions for connecting the welded portion and the contact portion. And a fixed leg which is bent and extended vertically from a portion adjacent to the first and second connection portions.

[0007]

[Action]

 Due to the arrangement described above, the conductive terminals can be connected to the electric circuit of the circuit board accurately by the adhesive force between the welded portion and the surface of the circuit board or the locking force between the fixing leg and the positioning hole of the circuit board. The connection can be secured.

[0008]

【Example】

As shown in FIGS. 1 and 2, the electrical connector 1 of the present invention is used to electrically connect an electronic card (not shown) to a circuit board (not shown). A plurality of conductive terminals 50 installed on the main body 20 and vertically connected to one end of the main body 20 And a metal body 10 of the mold.

On the other side of the frame 10 that houses the first arm 30, a card eject mechanism 40 is installed, and the detection terminal unit 60 is attached to the first arm 30.

The frame 10 includes a base 102, and first and second wings 103 and 104 extending parallel from both ends of the base 102. The first insertion piece 108 is installed at one end of the base 102 adjacent to the second wing 104. The first wing portion 103 includes a first bottom wall 1031, a first side wall 1032 vertically connected to the first bottom wall 1031, and a second insertion piece 109. The second wing portion 104 includes a second bottom wall 1041 and a second side wall 1042 which is perpendicularly connected to the second bottom wall 1041, and the second bottom wall 1041 has a first holding portion at a free end remote from the base portion 102. A wall 105 is provided, on which a first holding hole 106 is provided. Both the first side wall 1032 and the second side wall 1042 are provided with welding pieces 110 for welding to the circuit board.

The main body 20 has a vertically long shape, and a plurality of conductive terminals 50 are formed by inner molding. The main body 20 is provided with a first positioning groove 202 having one end corresponding to the second wing 104 penetrating through the upper and lower surfaces of the main body 20, and the main body 20 is provided on the surface facing the circuit board. Both ends are provided with localization pins 201, respectively. In addition, the main body 20 is embedded at one end where the first positioning groove 202 is installed in a direction opposite to the direction in which the electronic card is inserted, and integrally with the metal locking portion 203, so that the card can be ejected conveniently. Can be manipulated.

The first arm 30 is also formed to be vertically long, and the second insertion piece 109 having one end corresponding to the first wing 103 is provided with a second positioning groove 301 penetrating the upper and lower surfaces of the first arm 30. The other end is provided with a pressing end 302.

The card eject mechanism 40 includes a second arm 401 provided with a rail 4011, a contact portion 402 buried integrally with the second arm, a second holding wall 403, and an elastic body 405. The second holding wall 403 is provided with a second holding hole 404. The contact portion 402 is made of metal, and one end of the contact portion 402 is attached to the second arm 401.

The conductive terminal 50 is connected to the welding portion 501 installed in parallel with the circuit board, the contact portion 505 that comes into contact with the electronic card, and both of the above-mentioned portions, and is bent and set in a substantially “L” shape. First and second connection portions 502 and 503 are included. The at least a part of the conductive terminals 50 is formed at a side of the first and second connection portions 502 and 503 in order to ensure that the main body 20 of the electrical connector 1 maintains a constant electrical connection with a circuit board. It is equipped with fixed legs that bend vertically from and extend. In addition, the welding portion 501 of the conductive terminal 50 is installed substantially perpendicular to the first connection portion 502, and the fixed leg 504 is installed parallel to the direction in which the first connection portion 502 extends.

Referring to FIG. 3, when mounting, the first positioning groove 202 of the main body 20 is aligned with the first insertion piece 108 of the second wing 104, and the main body 20 of the electrical connector 1 is mounted on the frame 10. It is positioned on the base 102. The first arm 30 is attached to the first wing 103 by aligning the second positioning groove 301 of the first arm 30 with the second insertion piece 109 of the first wing 103. The pressing end 302 of the first arm 30 presses one end of the first wing 103 corresponding to the main body 20. When the first, second, and third sense terminals 601, 602, and 603 of the detection terminal unit 60 are attached to the first arm 30, both ends of the second detection terminal 602 are connected to the first and third detection terminals 601, respectively. 603 is electrically connected. Finally, the second arm 401 of the card ejection mechanism 40, the metal contact portion 402, and the elastic body 405 are connected to and fixed to the second wing portion 104 in this order.

An end of the locking portion 203 in the main body 20 of the electrical connector 1 is accommodated and provided in the rail 4011 of the second arm 401. In addition, one end of the elastic body 405 passes through the first holding hole 106 of the first holding wall 105 of the frame 10 and is locked to the first holding wall 105, and the other end of the second holding wall 403 of the second holding wall 403. It penetrates through the holding hole 404 and is locked to the second holding wall 403. After the electrical connector 1 is mounted, the positioning legs 107 installed around the frame 10, the positioning portions 201 of the main body 20, and the fixing legs 504 of the conductive terminals 50 are positioned in the positioning holes corresponding to the circuit board. (Not shown), and the positioning leg 107 and the fixing leg 504 of the conductive terminal 50 are selectively fixed to the positioning hole of the circuit board by a through-hole soldering method. In addition, the portions corresponding to the plurality of welding pieces 110 installed on the frame 10, the welding portions 501 of the conductive terminals 50, and the detection terminal unit 60 are welded to corresponding positions on the circuit board by surface mounting technology. In addition, the first and second bottom walls 1031 and 1041, the first and second side walls 1032 and 1042 of the frame 10 and the housing space 101 for housing the electronic card are surrounded from one side of the circuit board.

In the process of use, the inserted electronic card first detects whether the electronic card is in a write-protected state by pushing and spreading the first detection terminal 601 to separate it from the second detection terminal 602. Can be. When the electronic card is further inserted, the contact portion 402 of the card eject mechanism 40 is pushed to start moving in the insertion direction of the electronic card, and the second arm 401 is connected to the second arm 401 in conjunction with the second arm 401. The elastic body 405 is pulled, and at this time, the locking portion 203 of the main body 20 slides in the rail 4011 of the second arm 401. If the electronic card is further inserted after the electronic card comes into contact with the conductive terminal 50, the second detecting terminal 602 is pushed open to disconnect from the third detecting terminal 603, and the electronic card is connected to the third detecting terminal 603. Since the user has already contacted the contact portion 505 of the conductive terminal 50 before contacting the electronic terminal, the user can determine whether the electronic card is conductive by determining whether the second detection terminal 602 has disconnected from the third detection terminal 603. It can be determined that the terminal 50 makes electrical contact. When the locking portion 203 of the main body 20 is finally locked at a specific position in the rail 4011 of the second arm 401, the elastic body 405 is pulled and has a certain elasticity. When the card is ejected, the electronic card is further pushed a little distance in the insertion direction, and the locking portion 203 of the main body 20 is moved from the locking position by the special design of the rail 4011 of the second arm 401. By removing the elastic card 405, the elastic body 405 is elastically restored to the initial position, and the abutting portion 402 easily pushes the electronic card out of the electric connector 1 by the elastic restoring force.

[0017]

[Effect of the invention]

 As described above, the electrical connection between the electrical connector and the circuit board according to the present invention is based on the positioning method for inserting the positioning leg 107 of the frame 10 and the fixing leg 504 of the conductive terminal 50 attached to the main body 20 and the surface of the welding piece 110. By using two types of welding methods, when only the surface welding method is used between the electrical connector 1 and the circuit board, the electronic card is frequently inserted or the plastic body is weak and the welded portion is not received. It is possible to prevent the solder portion from being broken and the effect from being lost due to an increase in the force, thereby ensuring the reliability of the electrical connection of the electrical connector 1 and improving the service life of the electrical connector 1.

In addition, the first and second arms 20, 30 of the electrical connector 1 according to the present invention are manufactured and then attached together after manufacture, respectively. The manufacture and installation are convenient and reliable. The cost required for mounting can also be reduced.

In summary, the present invention is ready for utility model registration and should be registered by law. The above is merely a specific embodiment of the present invention, and does not limit the scope of the present invention. Modifications or changes of details that can be made based on the present invention belong to the scope of the present invention. And

[Brief description of the drawings]

FIG. 1 is an exploded view of the electrical connector of the present invention.

FIG. 2 is a perspective view of a conductive terminal of the electrical connector according to the present invention;

FIG. 3 is a perspective view of the electrical connector according to the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric connector 10 Frame 101 Housing space 102 Base 103 First wing part 104 Second wing part 1031 First bottom wall 1032 First side wall 1041 Second bottom wall 1042 Second side wall 105 First holding wall 106 First holding hole 107 Positioning Leg 108 First insertion piece 109 Second insertion piece 110 Welding piece 20 Body part 201 Positioning column 202 First positioning groove 203 Locking part 30 First arm 301 Second positioning groove 302 Pressing end 40 Card eject mechanism 401 Second arm 4011 Rail 402 Contact part 403 First holding wall 404 Second holding hole 405 Elastic body 50 Conductive terminal 501 Welded part 502 First connection part 503 Second connection part 504 Fixed leg 505 Contact part 60 Detection terminal unit 601 First detection terminal 602 Second detection terminal 603 Third detection terminal

Claims (9)

[Utility model registration claims] An electronic device includes a main body, and a plurality of conductive terminals provided on the main body. The plurality of conductive terminals include a welded portion, a contact portion, and a first connection portion connecting the welded portion and the contact portion. And a second connection portion, wherein at least a part of the conductive terminal has a fixing leg installed perpendicularly to a direction in which the welded portion extends. 2. A welded portion of the conductive terminal vertically extends from one end of the first connection portion, and a second connection portion is vertically bent and extended in the opposite direction from the other end of the first connection portion. And
2. The electrical connector according to claim 1, wherein the fixed leg extends from an adjacent portion adjacent to the first and second connection portions in a direction parallel to a direction in which the first connection portion extends. 3. A metal frame for shielding the main body, the frame including a base, first and second wings extending in parallel from both ends of the base, and a base having a second wing. The electrical connector according to claim 2, wherein a first insertion piece is installed at a portion adjacent to the first insertion piece, and a main body portion is combined with the base, and a first positioning groove for engaging with the first insertion piece is installed. 4. The frame has a second insert installed at a location adjacent to the first wing, and the first arm is coupled to the first wing of the frame, and the second arm is engaged with the second insert. 4. The electrical connector according to claim 3, wherein a positioning groove is provided. 5. A card ejection mechanism further comprising a card ejection mechanism installed on a second wing portion of the frame, and connecting the second arm, the metal contact portion, one end of the second arm, and a free end of the frame. The electrical connector according to claim 4, further comprising: 6. The locking device according to claim 5, wherein a locking portion is buried at an end of the first positioning groove of the main body, and a second arm of the card eject mechanism has a rail installed on the locking portion. Electrical connector. 7. The first arm is provided with a detection terminal unit having first, second and third detection terminals, respectively, and the second detection terminal is electrically connected to the first and third detection terminals. The electrical connector according to claim 6, wherein 8. A first connection portion, a welded portion which is vertically bent from one end of the first connection portion, and a welded portion which is vertically bent from one end of the first connection portion. A conductive terminal, comprising: a second connecting portion to be installed; a contact portion installed at an end of the second connecting portion; and a fixed leg installed perpendicular to a direction extending from the welded portion. 9. The fixing leg according to claim 8, wherein the fixed leg extends and is installed in a direction parallel to an extending direction of the first connecting portion near the first and second connecting portions. Conductive terminal.