WO2008113229A1

WO2008113229A1 - Connector structure

Info

Publication number: WO2008113229A1
Application number: PCT/CN2007/002484
Authority: WO
Inventors: Chinya Lee
Original assignee: Chinya Lee
Priority date: 2007-03-22
Filing date: 2007-08-17
Publication date: 2008-09-25
Also published as: CN201060980Y

Abstract

A connector structure is composed of a first insulating body (1), several contact terminals (2) and a second insulating body (3) fixing the contact terminals (2) and combined with the first insulating body (1). The first insulating body (1) is provided with a central island (12). Several receiving parts (13) are provided in both sides of the central island (12) along its longitudinal axis. Grooves (14) corresponding to the receiving parts (13) are provided on the substrate (11) which connects both sides of the central island (12). A hollow part (141) is provided in each groove (14). The hollow part (141) can provide moving space for the bottom of the terminals when they are forced so as to prevent stress from concentrating on moving parts of the terminals. Several contact terminals (2) are provided in the grooves (14) of the first insulating body (1) in turn. The second insulating body (3) is integrated with the first insulating body (1) in manner of insert molding and so as to fix the contact terminals (2) entirely.

Description

Connector structure

Technical field

The utility model provides a connector structure, in particular to a board-to-board connector structure mounted on a circuit board for providing power connection. Background technique

In recent years, various electronic devices have been developing rapidly, and as much as possible, with the latest miniaturization, this is an inevitable trend in the development of science and technology today. The electrical connectors used in the installation of electronic devices have also been continuously improved. The convergence can be met to meet the needs, but at the same time as miniaturization, the signal transmission of the shield must be guaranteed.

The board-to-board receptacle connector is mounted on a printed circuit board that provides telecommunications docking with the board-to-board plug connector for telecom transmission between electronic devices. In many board-to-board connectors, the bottom end of the insulating body of the connector is designed as a closed structure, and the contact terminals are closely engaged with the corresponding terminal slots. When the force is applied, the contact terminals are too concentrated to help disperse. Contact the movable part of the terminal, lose the elastic effect, increase the plugging force between the connectors, and reduce the service life of the terminal. For the related structure of the board-to-board connector, please refer to Figure 1, the board pair disclosed in the figure The female connector in the board connector is a one-piece structure, and the contact terminal is fixed in the predetermined hole of the insulating body by inserting and fixing, and then the end welding portion of the contact terminal is bent, and the structure is required for assembly. After the manual assembly process, the product yield is not good; and the contact terminal only contacts the preset holes of the insulating body by the card points on both sides of the card abutting portion 61, and the effect of the full contact is not achieved, and the contact terminal is easily loosened.

Moreover, the contact terminal support portion 62 is made to have a tolerance of the actual size, and cannot be completely adhered to the inner side wall of the convex portion of the insulating body, and the contact terminal cannot be stably contacted during the electrical connection, and the contact end of the contact terminal is excessively large. The deformation, which causes poor contact effects.

In addition, there is a drawback in that the socket and the plug are not well fitted. When the plug 40 is inserted into the socket 50, the bent portion 60 has a reverse elastic force on the plug 40, and the insertion force is increased during the insertion process, and the bending portion 60 is stressed for a long time. If it is too long, it will lose its elastic effect, and it will not guarantee sufficient contact with the plug. During the process of joining the plug and the socket, it is impossible to judge whether there is a complete bonding state, and these cannot be confirmed by the naked eye, and a certain external force is required between the two. Restricted, otherwise separation will affect the signal transmission between each other; conventional board-to-board socket connector terminals are not fully charged Points will seriously interfere with electronic devices, and users will not be able to use them reliably. Therefore, it is extremely necessary to further improve the structure of existing electrical connectors to meet the demand and improve signal transmission between electronic devices. stability. Summary of the invention

The main purpose of the utility model is to provide a connector structure, which utilizes an Insert Molding method to combine a contact terminal and an insulative housing, so that the fastening portion of the contact terminal is stabilized in the insulating body, thereby saving Assemble your work and increase your product yield.

Another main object of the present invention is to provide a connector structure in which the fixed end of the contact terminal is completely integrated with the insulating body by using an insert molding structure, and the contact terminal can be provided when the electrical connection is made. Stable contact with good contact.

Another main object of the present invention is to provide a connector structure that is hollowed out at a receiving portion of a first insulating body terminal of the connector to provide a proper deformation amount of the contact terminal during the stress receiving process to disperse the movable portion. When the force is applied, it has a full rebound force, avoiding stress concentration on the movable part and losing the elastic effect, thereby increasing the probability of using the connector.

A further main object of the present invention is to provide a connector structure in which a contact point of a contact terminal and a contact point of a movable contact are in a Han direction, and an inward force is generated when contact is made by a movable contact point to increase the positive point applied to the fixed contact point. The contact force is made to make the contact better, and the insertion feeling of the connector when inserting and fitting is improved to increase the bonding force between the two.

The above object and problem can be achieved by the following technical solutions: The connector structure of the present invention comprises a first insulating body, a plurality of contact terminals, and a plurality of contact terminals fixed to the first insulating body. The second insulative housing is configured, wherein the first insulative housing is provided with a central island portion, and a plurality of receiving portions are extended toward the bottom end substrate on the arm surfaces on both sides of the central axis of the central island, and the receiving portions are available for contact terminals. The movable portion of the movable portion is formed by a chute and a horizontal groove; and a substrate is provided on each of the two sides of the bottom end of the central island portion, and a groove is formed at a position corresponding to each of the receiving portions, and the bottom surface of the groove penetrates through the bottom surface of the substrate. In the hollow portion, the hollow portion is located below the contact portion of the contact terminal, and a support portion for supporting the bottom end of the contact terminal is formed when the terminal is stressed.

Each of the contact terminals has a resilient portion, a fastening portion formed along the welded portion and a contact portion extending from the fastening portion; the fastening portion and the contact portion have a common arm, and the common arm forms the contact The fixed end of the portion is provided with a fixed contact point on the top of the fixed end, and the other end of the contact portion is a movable end, and the movable end is provided with an active contact point, and when the terminal is stressed, the movable end can be in the chute Concession, the bottom end of the contact portion is displaced toward the hollow portion. The utility model 1 of the utility model is characterized in that: the bottom of the contact terminal can be appropriately deformed in the process of the force of the movable portion of the terminal to disperse the force of the movable portion, avoiding The stress concentrates on the movable part to make it lose its elasticity. At the same time, when the plug terminal is inserted, the movable contact point generates a lateral force to increase the positive contact force applied to the fixed contact point to make the contact better, so as to form a double point. Contact, enhance contact efficiency, and ensure reliable and reliable contact of the connector.

Another creative feature of the present invention is that the combination of the contact terminal and the insulative body is achieved by means of insert molding, and the contact terminal is first placed in the groove on the first insulative body, and then placed in the groove. In the mold, the second insulating body is formed by injection, and the second insulating body is integrated with the first insulating body during the forming process, the clamping portion of the contact terminal is completely covered, and the second insulating body simultaneously contacts the fixed end of the terminal. Combined with the clamping, the contact terminals have a complete covering effect, forming a stable connector structure to provide an electrical connection between the boards for signal transmission.

Through the above explanation, it can be seen that the advantages of the present invention are mainly as follows: 1. The contact terminal is combined with the insulating body by means of Insert Molding to make the contact terminal have a good stabilizing effect. 2. The first insulating body of the receiving terminal is designed with a hollow portion, and the hollow portion can be placed on the movable portion of the terminal. During the process, the appropriate deformation amount is timely to disperse the force of the movable part, the stress is concentrated on the movable part, and the probability of using the terminal is improved. 3. The contact terminal has a fixed contact point and an active contact point, and the movable contact point generates a lateral force. The contact force is improved by increasing the positive contact force applied to the fixed contact point. DRAWINGS

Figure 1 is a conventional connector structure;

Figure 2 is a perspective view of a specific embodiment of the present invention;

Figure 3 is a perspective perspective view of a specific embodiment of the present invention;

Figure 4 is another perspective view of a specific embodiment of the present invention; and

Figure 5 is a cross-sectional view taken along line A-A of Figure 2;

40~ head connector, 50~ connector, 60-bend, 61-card abutment, 62-support, 100-connector structure, 1 insulative body, 11-substrate, 12-center Island, 13—housing department, 131—slotted groove, 132—horizontal groove, 14~groove, 141—opening, 15—fixing hole ₃ 2~矣 contact terminal, 21—welding part, 22—fastening part, 23~ ^矣contact, 24~3⁄4·同臂, 25—fixed end, 251—fixed contact point, 26—active end, 27—pick part, 261—active contact point, 3—second insulative body, 31—main body, 32—empty, 33—long arm, 331—terminal slot, 34~ stud. detailed description

The structure, features and functions of the connector of the present invention will be described in detail below with reference to the accompanying drawings and the illustrated embodiments.

Referring to FIG. 2, in one embodiment of the connector structure 100 of the present invention, the connector is composed of a first insulative housing 1, a plurality of contact terminals 2, and a contact terminal for fixing the contact terminal and the first insulative housing. The second insulative housing 3 is formed by combining the second insulative housing 3 with the first insulative housing 1 to cover and fix the contact terminal 2 .

The specific structure of the connector structure 100 of the present invention is also shown in FIG. 3, FIG. 4 and FIG. 5 , wherein the first insulative housing 1 has a substrate 11 , and a central island portion 12 is disposed on the substrate 11 . 12 is provided to be embedded with the mating connector, and a plurality of receiving portions 13 are recessed in the two sides of the central axis portion 12 in the longitudinal direction, and the receiving portions 13 extend through the upper surface of the central island portion 12, and the receiving portions 13 are provided by the chute The 131 and the horizontal groove 132 are configured to facilitate the collection of the picking portion 27 of the movable end 26 of the terminal 2, and provide a retracting space when the movable end 26 is displaced by the force to prevent the contact terminal from being excessively applied. 2, there is no buffer space and loses elasticity; the bottoms of the two sides of the substrate 11 connected to the central island portion 12 are provided with grooves 14 corresponding to the accommodating portion 13, and the inner end of each of the grooves 14 is provided with a through substrate 11 The bottom hollow portion 141, when the movable end 26 of the contact terminal 2 is stressed, timely receives the amount of deformation displacement of the bottom of the movable end 26 to disperse the force of the movable end 26, and avoid stress concentration on the activity. End 2 Further, at least two fixing holes 15 are formed on each edge of the substrate 11, and the fixing holes 15 ensure a firmer bonding with the second insulating body 3.

The plurality of contact terminals 2 are punched into a complete integrated structure, and each of the conductive members 2 has a horizontal soldering portion 21, and is bent along the splicing portion 21 to form a fixing portion 22, which follows the securing portion 22. The other end is reversely bent into a contact portion 23, and the fastening portion 22 and the contact portion 23 have a common arm 24, and the contact portion 23 is composed of a fixed end 25 and a movable end 26, and the aforementioned common arm 24 also serves as The fixed end 25 of the contact portion 23 has a fixed contact point 251 at the top end of the fixed end 25 of the contact portion 23, The movable end 26 is provided with a movable contact point 261. The fixed contact point 251 and the movable contact point 261 have a slightly convex arc shape so as to be in contact with the terminal of the mating connector; and the other end of the movable end 26 is reversed. Extending into a picking portion 27, the picking portion 27 has an inhibitory effect of preventing the movable end 26 from being excessively exposed to the central island portion 12.

The second insulative housing 3 is formed by in-situ molding. The second insulative housing 3 is used for fixing the contact terminal 2 and is firmly coupled with the first insulative housing 1 to form the electrical connector 100 structure as shown in FIG. The second insulative housing 3 includes a main body 31. The main body 31 has a hollow portion 32 for receiving the central island portion 12 for surrounding a plurality of terminal slots 331 of the long arm 33 constituting the hollow portion 32. The bottom surface of the main body 31 has a stud 34 matching the fixing hole 15 of the insulative housing 1 to ensure that the first insulative housing 1 and the second insulative housing 3 are more firmly bonded.

The connector structure 100 of the present invention is a structure completed by in-line molding, in which the first insulating body 1 is first formed, and then the first insulating body 1 is placed in a pre-prepared mold, and the contact terminal is placed. 2 is placed in each of the grooves 14 of the first insulative housing 1 and the contact terminals 2 are in a stable equilibrium state, and the contact terminals 2 are outwardly disposed; the second insulative body 3 is molded by the injection molding, The contact terminal 1 placed on the first insulative housing 1 is completely fixed and integrated with the first insulative housing 1, and the product is formed as shown in FIG.

Referring to FIG. 5, the bottom end of the contact portion 23 of the molded electrical connector 100 contacting the terminal 2 is located above the hollow portion 141. When the contact terminal 2 is inserted by the mating connector, the movable end 26 of the contact terminal 2 is acted upon. The force of the force is bound to be displaced. The portion 27 of the movable end 26 moves along the chute 131 and the horizontal groove 132 in the accommodating portion 13 of the central island portion 12, and simultaneously drives the bottom end of the contact portion 23 toward the hollow portion 141. The structure of the chute 131, the horizontal groove 132 and the hollow portion 141 on the first insulative housing 1 detects that the movable end 26 of the contact terminal 2 has an optimal movable space to prevent stress from being concentrated on the movable end 26 and causing the movable end. 26 loses its elasticity, improves the probability of using the terminal, and can generate a reaction force in real time when the force disappears, and firmly holds the contact terminal of the mating connector.

The contact portion 2 of the contact terminal 2 includes a fixed end 25 and a movable end 26, and the fixed contact point 251 and the movable contact point 261 are oppositely disposed. The fixed end 25 is covered by the second insulative body 3 due to the structure of the insert molding. Solid, so when it comes into contact with the mating connector contact terminal, the fixed contact point 251 will be completed, and all will be actuated by the movable contact point 261, which will generate a lateral force and form a positive contact force with the fixed contact point 251. Two-way clamping, the contact terminal 2 forms two points in contact with each other, It has better contact; in addition, the fixed contact point 251 and the movable contact point 261 are preferably convex arc shapes, which are easier in the embedding process and can prevent the detachment between the plug and the electrical connector; Point 251 and movable contact point 261 are designed to face each other. When you insert it, you only need to hear a click to know that the plug is fully fitted with the connector. It does not need to be visually observed. It has a good sense of insertion to increase two. The bonding force between the two is thus more suitable for a practical connector structure.

It can be seen from the above description that the connector structure of the present invention has an outstanding feature: the contact terminal 2 is covered and fixed by the first insulative housing 1 and the second insulative housing 3 by the injecting molding structure, thereby changing the manufacturing process, and no longer Manually assembled; the structure of the chute 131, the horizontal groove 132 and the hollow portion 141 is designed on the first insulative housing 1, and the optimal movable space of the movable end 26 of the contact terminal 2 is provided, which fully reflects the force at the time of plugging. In addition, through the terminal fixed contact point and active contact point design, the terminal contact is better, the connector sense between the connectors is improved, and the bonding force between the terminals is increased, making it more practical.

The embodiments and the accompanying drawings of the present invention are only intended to illustrate the present invention, so that those skilled in the art can understand the purpose and effect of the present invention, but do not impose any limitation on the present invention. There are still other variant implementations of the utility model. Therefore, those who are familiar with the technology can understand the purpose and effect of the utility model, and perform other styles without departing from the spirit of the utility model. Equivalent implementation of the scope.

Claims

Claim

A connector structure comprising a first insulative housing (1), a plurality of contact terminals (2) and a fixed contact terminal (2) and a second insulative body combined with the first insulative housing (1) 3) The present invention is characterized in that: the second insulative housing (3) is combined with the first insulative housing (1) in a mosaic molding manner to form a combined structure, and the contact terminal (2) is covered and fixed.

2. The connector structure according to claim 1, wherein a substrate (11) of the first insulative housing (1) is provided with a central island portion (12), and two sides of the central island portion (12) in the long axis direction a plurality of receiving portions (13) are provided inwardly, and the opposite sides (11) on the two sides of the central island portion (12) have grooves (14) corresponding to each of the receiving portions, in each of the grooves (14) There is a hollow part (141).

3. The connector structure according to claim 1, wherein a middle portion (32) of the second insulative housing (3) forms a hollow portion (32) for surrounding the long arm (33) of the hollow portion (32). There are several terminal slots (331) with fixed terminals.

4. The connector structure according to claim 1, wherein the contact terminals (2) are of a one-piece structure, and each contact terminal (2) has a horizontal soldering portion (21) along the soldering portion.

(21) bending to form a fastening portion (22), and bending along the other end of the fastening portion (22) into a contact portion (23), the fastening portion (11) and the contact portion (23) having a a common arm (24), the contact portion (23) is composed of a fixed end (25) and a movable end (26), and the aforementioned common arm (24) also serves as a fixed end (25) of the contact portion (23). At the top end of the fixed end (25) of the contact portion (23), there is a fixed contact point (251), and the top end of the movable end (26) is provided with an active contact point (261), and the other end of the movable end (26) is reflexed to a 4 trillion Ministry (27).

The connector structure according to claim 4, wherein the fixed contact point (251) and the movable contact point (261) are of a slightly convex arc shape so as to be in contact with the terminals of the mating connector.

6. The connector structure according to claim 2, wherein the housing portion (13) and the central island The upper surface of the portion (12) is penetrated and is formed by a chute (131) and a horizontal groove (132).

The connector structure according to claim 2, wherein a plurality of fixing holes (15) are provided on each of the periphery of the bottom surface of the substrate (11).

8. The connector structure according to claim 4, wherein the fixed contact point (251) and the active contact point (261) are opposed to each other, and the contact points have a convex arc shape.

9. The connector structure according to claim 3, wherein a peripheral edge of the bottom surface of the body (31) of the second insulative housing (3) is provided with a matching hole (15) of the first insulative housing (1). Tab (34).