KR20030019549A - Electric-connector - Google Patents

Abstract

PURPOSE: An electronic connector is provided to improve reliability in fabricating a socket and a plug constructing the electronic connector and increase contact force between terminals of the socket and plug when the socket and plug are combined with each other. CONSTITUTION: An electronic connector is composed of a socket(10) and a plug(30). The socket has a connection protrusion(12) at the center, and a plurality of first slots(14) combined with a plurality of first female terminals(20). The first slots are formed at both sides of the connection protrusion. The socket further includes a spring contact part(24) inside the socket. The plug has a connection recess(32) combined with the connection protrusion of the socket, and a plurality of second slots(34) combined with the second male terminals(40). One end of each of the second male terminals is exposed to the outside of the plug body and the other end of the second male terminal is bent in U-shape to come into contact with the spring contact part. The first fusing projection(16) used for fixing the first female terminal is formed on the top of each of the first slots. The second slots of the plug body are extended on the bottom face of the connection recess, and the second fusing projection(36) used for fixing the second male terminal is formed between the neighboring extended second slots and between the neighboring second slots placed at both sides of the plug body.

Description

Electronic Connector {ELECTRIC-CONNECTOR}

The present invention relates to a low profile electronic connector, and more particularly, to integrally forming a molten protrusion between a plurality of slots formed in each body during injection molding, and to ultrasonically melting the molten protrusion in a state where terminals are coupled to each slot. (Or high frequency, heat) When the processing is melted using the heat source by the vibration to fix the terminal to improve the reliability of the product and to prevent the occurrence of defects, the contact force between the corresponding terminals when connecting the socket and plug It is to provide an improved electronic connector.

In general, electronic connectors are used in various electronic devices, and are provided in various forms according to shapes and connection methods such as directly connecting cables and those used for PCBs (printing boards). It is well known that the terminal consists of a socket and a plug coupled to each slot of the main body formed of an insulator material, and the socket and the plug are coupled to each other to transmit electrical signals.

The basic configuration of the conventional electronic connector and its terminals will be described in detail with reference to FIG. 1 as follows.

First, the electronic connector includes a socket body 10, a plug body 30, a first female terminal 20, and a second male terminal 40 coupled thereto. The socket body 10 is formed at the center of the insulator base. Coupling protrusions 12 are formed to be coupled to the plug body 30 to be divided into both sides, a plurality of first slots so that the first female terminal 20 is coupled to both sides of the coupling protrusion 12 at a predetermined interval. (14) was formed.

The plug body 30 includes a plurality of second slots having coupling grooves 32 formed at the center thereof so that coupling protrusions 12 of the socket body 10 may be fitted, and second male terminals 40 coupled to both sides thereof. 34) was formed.

Thus, the conventional second male terminal 40 is coupled only in the state of being fitted into the second slot 34 of the plug body 30, respectively, and then the second male terminal 40 is removed when the socket and the plug are detached. The problem of deviating from the two slots 34 frequently occurred.

In addition, when manufacturing the socket and plug, the first and second female and male terminals 20 and 40 are formed in a stamp shape and cut to the required length, and the first and second parts of the socket and plug main bodies 10 and 30 are cut. It was prepared by placing the slots 14 and 34 into the slots 14 and 34 and cutting them to the required lengths. However, the first and second female terminals 20 and 40 are separated from the first and second slots 14 and 34. Problems have occurred frequently.

In addition, in order to solve the above problems, when manufacturing the socket and plug, the first, second female and male terminals 20 and 40 in the form of stamps are formed inside the mold for forming the socket and the plug body 10 and 30. It has been proposed that the first and second female terminals 20 and 40 are fixed at the same time as the socket and plug main bodies 10 and 30 are molded by injecting insulator resin after the arrangement, but this is caused by a high pressure inside the mold. By injecting and molding a resin, a problem arises in that the first and second female terminals 20 and 40 arranged inside the mold are driven in the resin injection direction during molding.

Therefore, this causes a problem such that an unbalance and deformation occurs in the arrangement of the first and second female and male terminals 20 and 40 so that the electrical contact force of the signal is lowered or the electrical contact is not made.

On the other hand, when the second male terminal 40 coupled to the second slot 34 of the plug body 30 is coupled, the second coupled in the direction of the coupling groove 32 formed in the center of the plug body 30 The outer surface of the engaging projection 12 formed in the center of the socket body 10 is in contact with the end of the male terminal 40 is coupled to the exposed state, if not bent at an exact angle of 90 degrees or when deformation occurs during handling. By interfering with the scratches on the outer surface of the engaging projection 12 generated dust or chipping or peeling there was a problem that the poor contact caused by contact between the terminals.

In addition, the second male terminal which is in contact with the first spring contact portion of the first female terminal is simply bent in a U shape so that the plug is easily pulled out of the socket while the first female terminal and the second male terminal are in contact with each other. It is accompanied by a problem that the maintenance of the lock state is reduced) and the reliability of the product is lowered and the problem that the socket and the plug is not assembled or when the detachment is not maintained, the holding force is not maintained. As another example, a protrusion protruding in an arc shape is provided in the U-shaped portion of the second male terminal, which is difficult to separate the socket and plug once combined, and also the desorption feeling during assembly lowers the reliability of the product. Will accompany.

Therefore, the present invention is to solve the above problems and shortcomings, the main object of the first and second slots of the socket and the plug body is melted by the heat source by the vibration during the ultrasonic processing between the first, second slots, 2 by forming the molten protrusions integrally, so that the first and second molten protrusions are melted and fixed in a state in which the first, second female and male terminals in a stamp form are coupled to the first and second slots of the socket and the plug body. Therefore, it is to provide an electronic connector that prevents the first and second female and male terminals from being separated.

According to another object of the present invention, the end of the second male terminal coupled to the second slot of the plug body is buried in the second slot by melting of the melting projections without being exposed to the coupling recess therein, and thus the socket and the plug. It is to provide an electronic connector that can prevent the contact failure caused by preventing the chipping or scratching of the coupling protrusion of the socket body when assembling or detaching.

According to still another object of the present invention, a second projecting portion of the second male terminal coupled to the second slot of the plug body protrudes in a state where a constant length (D) straight portion is maintained in relation to the first spring contact portion. By forming the contact portion to improve the lock (Lock) function when engaged, and to maintain the extraction force when not assembled and detached to provide an improved electronic connector.

Another object of the present invention is not only easy to form the socket and plug body, but also to reduce the loss of the raw material, it is easier to combine and fix the first, second female and male terminals coupled thereto to improve the working process In addition, to provide an electronic connector with improved reliability.

1 is a cross-sectional view showing a conventional electronic connector.

Figure 2 is a cross-sectional view of the coupling applied to the electronic connector of the present invention.

Figure 3 is an exploded perspective view showing an electronic connector to which the present invention is applied.

Figure 4a is an enlarged view "A" of the electronic connector to which the present invention is applied.

Figure 4b is an enlarged view "B" of the electronic connector to which the present invention is applied.

Figure 5a is an ultrasonic processing state of the socket to which the present invention is applied.

Figure 5b is an ultrasonic processing state diagram of the plug to which the present invention is applied.

Figure 6 is a main part showing a terminal of the electronic connector to which the present invention is applied.

<Brief description of symbols for the main parts of the drawings>

10: socket body 12: engaging projection

14: first slot 16: the first melt projection

20: first female terminal 22: lead

24: first spring contact portion 30: plug body

32: engaging groove 34: second slot

36: 2nd melt protrusion 40: 2nd male terminal

42: lead 44: second contact portion

The present invention for achieving the above object,

Therefore, the present invention for achieving the above object is formed in the center of the socket body is formed with a plurality of coupling protrusions protruding with a predetermined width and a plurality of first slots are coupled to a plurality of first female terminals at predetermined intervals on both sides thereof. The first female terminal is coupled to the socket so that the lead is exposed to the outside of the socket body in a state coupled to the first slot and the first spring contact is formed therein, and the coupling protrusion is fitted to the center of the plug body. A groove is formed and a plurality of second slots are formed on both sides thereof so that a second male terminal is coupled, and the second male terminal is exposed to the outside of the plug body while being coupled to the second slot, and the other end thereof. In the electronic connector made of a plug formed to be in contact with the first spring contact is bent U-shaped,

First melting protrusions for fixing the first female terminals are formed between the upper ends of each of the first slots of the socket body by melting into the first slots at both sides thereof by ultrasonic processing in a state where the first female terminals are coupled.

The second slot of the plug body extends to the bottom surface of the coupling recess, and a second male terminal is coupled between each of the extended second slots and between each of the second slots formed at both ends of the body. In the state is melted into the second slots on both sides by the ultrasonic processing to form a second molten projection for fixing the second male terminal, respectively,

The second male terminal extends a U-shaped bent portion to be coupled to the extended second slot so that its end is bent into a "b" shape and is fixed to the U-shaped bent portion of the second male terminal in relation to the first spring contact portion. A second contact portion protruding in a state where the length D straight portion is maintained is formed.

In this case, the first and second melted projections may be melted equally to both side first and second slots during ultrasonic processing. "Shape or" It is characterized in that formed.

When described in more detail by the accompanying drawings as follows.

2 is a cross-sectional view of the coupling applied to the electronic connector of the present invention,

Figure 3 is an exploded perspective view showing an electronic connector to which the present invention is applied,

Figure 4a is an enlarged view "A" of the electronic connector to which the present invention is applied

Figure 4b is an enlarged view "B" of the electronic connector to which the present invention is applied,

Figure 5a is an ultrasonic processing state diagram of the socket to which the present invention is applied,

5b is an ultrasonic processing state diagram of a plug to which the present invention is applied,

6 is a main view showing a terminal of the electronic connector to which the present invention is applied.

As shown in FIGS. 2 and 3, the electronic connector of the present invention includes a socket and plug body 30 including a socket body 10 and a first female terminal 20 coupled to the first slot 14. It consists of a plug consisting of a second male terminal 40 coupled to the second slot 34.

Accordingly, the socket body 10 has a coupling protrusion 12 protruding at a predetermined width in the center thereof, and a plurality of first slots 14 are formed at both sides thereof at predetermined intervals. The first melting protrusion 16 is melted by ultrasonic processing in a state in which the first female terminal 20 is coupled between the first slots 14 to fix the first female terminal 20 to the first slot 14. ) Are formed respectively.

At this time, the first molten protrusion 16 is preferably formed on the upper end of the first slot 14 of the socket body (10).

The first female terminal 20 has an inverted U-shaped portion standing up at a predetermined height on one side of the lead 22 exposed to the outside, and a first spring contact portion having a contact protrusion protruding from the upright U-shaped portion on the other side thereof. 24) is formed.

The plug body 30 has a coupling groove 32 is formed so that the coupling protrusion 12 is fitted in the center thereof, a plurality of second slots 34 so that the second male terminal 40 is coupled to both sides thereof. The second slot is formed so as to extend to the bottom surface of the coupling groove 32, the second male terminal 40 is coupled between the second slot 34 of the plug body 30 In the state is melted by ultrasonic processing to form a second melt projection 36 to fix the second male terminal 40 to the second slot 34.

The second male terminal 40 has a lead U exposed to the outside of the plug body 30 in a state coupled to the second slot 34, and an inverted U-shaped portion standing up at a predetermined height is formed at the end thereof. Is bent in a "b" shape to be coupled in close contact with the second slot 34 formed as the bottom surface of the coupling groove 32, the first of the first female terminal 20 in the inverted U-shaped portion The second contact portion 44 is formed in relation to the spring contact portion 24 and protrudes in a state in which a constant length D straight portion is maintained.

Accordingly, the second molten protrusion 36 is formed at both ends of the extended second slot 34 and at both ends of the plug body 30, respectively, of the second male terminal coupled to the second slot 34. A bent portion and a tip of the terminal lead 42 are fixed by the second melting protrusion.

In other words, a plurality of second slots 34 may be formed on both sides of the plug body 30 to which the second male terminal 40 is coupled, and the second molten protrusion may be formed in place between each of the second slots 34. 36) are integrally formed to protrude from each other.

The first and second molten protrusions 16 and 36 as described above are completely melted into the first and second slots 14 and 34 when melted by ultrasonic processing, and then solidified to form the first and second female terminals 20. , 40, it is important to determine the size and mass so as not to protrude beyond the tip (or bottom) of the first and second slots 14, 34.

In addition, the first and second melted projections 16 and 36 are " " or " It is formed into a shape so as to be evenly distributed and melted into the first and second slots 14 and 34 on both sides during the ultrasonic processing.

Therefore, according to the electronic connector having such a shape, the second male terminal 40 coupled to the plug main body 30 is prevented from being separated, and the end of the second male terminal 40 is recessed, so that the socket main body 10 is closed. To prevent interference between the coupling protrusions 12.

On the other hand, such an electronic connector is simpler and easier to manufacture. Looking at the process in detail, first, by injecting a resin into the mold, the first and second melt protrusions 16 and 36 are integrally formed with the socket and plug. After molding the main bodies 10 and 30, respectively, the first and second female and male terminals are integrally connected in a stamp form between the molded sockets and the first and second slots 14 and 34 of the plug main bodies 10 and 30, respectively. Position (20, 40) to fit each.

Subsequently, both sides of the first and second female and male terminals 20 and 40 are coupled to each other by using an instantaneous heat source by vibration of ultrasonic processing on each of the first and second molten protrusions 16 and 36. The first and second female and male terminals 20 and 40 which are melted and joined evenly by the first and second slots 14 and 34 are fixed.

In such a method using ultrasonic vibration, high frequency electric field energy is converted into mechanical energy of vertical motion, and the mechanical vibration generates strong vibration frictional heat at the interface between plastic and plastic or plastic and metal, melting and softening plastic. In the present invention, a swaging method is used, which generates instantaneous heat due to vibration, so that the resin is recrystallized after repositioning by using the plastic (flow) of the resin at a temperature above the melting point. Ultrasonic processing to fix the terminal is used.

Accordingly, the first and second female terminals 20 and 40 having a stamp shape are fixed in the state in which the first and second female terminals 20 and 40 are fixed to the first and second slots 14 and 34. The leads 22 and 42 of 40 are cut and completed.

According to this method, when the socket and the plug are formed, the first and second female terminals 20 and 40 are prevented from being separated from the first and second slots 14 and 34 by a cutting process. Even when the plug is attached or detached, the first and second female terminals 20 and 40 are prevented from being separated, thereby providing a structure in which the reliability of the electronic connector is improved.

According to the electronic connector of the present invention as described above, the first and second molten protrusions are formed between the first and second slots of the socket and the plug body, and the first and second female and male terminals are formed between the first and second slots. By melting the first and second melting projections by the heat source due to the vibration during the ultrasonic processing during the coupling, the first, second female and male terminals are fixedly coupled to each of the first and second slots in the manufacturing or use terminal In addition to preventing the detachment of the socket and the plug when detaching the socket there is an effect of improving the reliability of the electronic connector.

In addition, when assembling or detaching the socket and the plug, the end of the second male terminal coupled to the second slot of the plug body is buried in the second slot by melting of the melting protrusion without being exposed to the coupling recess therein. There is an effect that can prevent the deterioration or scratches to the coupling protrusion of the socket body, thereby preventing contact failure.

In addition, when engaging by forming a second contact portion protruding in a state that a certain length (D) linear portion is maintained relative to the first spring contact portion of the U-shaped bent portion of the second male terminal coupled to the second slot of the plug body It improves the lock function and maintains the extraction force when not assembled and detached, thereby improving reliability.

In addition, the socket and the plug body can be easily formed, and the raw material can be saved, and the joining and fixing of the first and second female and male terminals coupled thereto can be easily performed, resulting in an improved work process and generation of product defects. There is an economic effect to prevent this.

Claims (4)

A coupling protrusion protruding to a predetermined width is formed at the center of the socket body, and a plurality of first slots are formed at both sides thereof so that a plurality of first female terminals are coupled at a predetermined interval, and the first female terminal has a first slot. The lead is exposed to the outside of the socket body in the state coupled to the socket and the first spring contact is formed in the inner side of the socket body, the coupling groove is formed in the center of the plug body to engage the engaging projection is formed on both sides of the A plurality of second slots are formed to couple the two male terminals, and the second male terminal is exposed to the outside of the plug main body while being coupled to the second slot, and the other end thereof is bent U-shaped to form the first spring. In the electronic connector consisting of a plug formed in contact with the contact portion, First melting protrusions for fixing the first female terminals are formed between the upper ends of each of the first slots of the socket body by melting into the first slots at both sides thereof by ultrasonic processing in a state where the first female terminals are coupled. The second slot of the plug body extends to the bottom surface of the coupling recess, and a second male terminal is coupled between each of the extended second slots and between each of the second slots formed at both ends of the body. In the state is melted into the second slots on both sides by the ultrasonic processing to form a second molten projection for fixing the second male terminal, respectively, The second male terminal extends a U-shaped bent portion to be coupled to the extended second slot so that its end is bent into a "b" shape and protrudes into the U-shaped bent portion of the second male terminal in relation to the first spring contact portion. And a second contact portion formed thereon. The method of claim 1, wherein the first and second melt protrusions are melted evenly into the first and second slots during ultrasonic treatment. Electronic connector, characterized in that formed in the shape. The method of claim 1, wherein the first and second molten protrusions are " Electronic connector, characterized in that formed in the shape. The electronic connector as claimed in claim 1, wherein the second contact portion is formed to protrude in a state in which a straight line part is maintained in a contact direction.