JP3164181U - Electrical connector - Google Patents

Abstract

An electrical connector having a positioning effect and high stability is provided. A main body 1 and a shield casing 2 are provided. An opposing connection portion 12 extends in front of the base 11 included in the main body 1. A plurality of terminals 13 are positioned on the opposing connection portion 12. A stopper surface 14 is formed at a connection portion between the base 11 and the rear side of the opposing connection portion 12. A notch groove 15 is opened on the stopper surface 14. The shield casing 2 covers the peripheral portion of the main body 1. The stopper piece 23 provided on the other side portion away from the insertion groove 211 of the shield casing 2 forms the same plane as the stopper surface 14 on the rear side of the opposed connection portion 12 and is positioned in the notch groove 15. With the above structure, when the plug of the external electrical connector is inserted into the insertion groove 211, the stopper surface 14 of the base 11 and the stopper piece 23 of the shield casing 2 prevent the plug from being doubled. [Selection] Figure 2

Description

The present invention relates to an electrical connector, and in particular, when a plug of an external electrical connector is electrically connected to the opposing connection portion of the main body, the plug forms a flush surface with the stopper surface on the rear side of the opposing connection portion and the stopper surface. It is related with the electrical connector which can prevent that the structure of a main body is damaged by pushing in a plug or making a mistake in a usage method by being blocked | prevented double by the stopper piece of the shield casing to perform.

At present, electronic technology is rapidly developing, and a computer has been developed from a desktop personal computer to a notebook personal computer having a small volume and convenient for carrying, and is used in various places. When a user uses a computer to transmit data and signals, or when the computer is connected to other peripheral devices, it is necessary to use a so-called interface.

Mini USB has been developed to deal with the downsizing of electronic devices. Mini USB is classified into A type and B type (Mini USB A / B Type) based on the plug standard, and many small electronic devices (for example, digital cameras, mobile phones, card readers, video / audio playback devices, etc.) Is used.

As computers are miniaturized and computation and video processing speeds are increased, conventional cathode ray tube displays are increasingly being deceived. Currently, liquid crystal displays are widely used, ranging from large displays such as desktop monitors to portable terminal displays. In addition, the interface standard has been developed from an early analog signal VGA plug to a fully digital transmission system based on the DVI interface standard, and attenuation and distortion in the conversion process of the digital signal are reduced. . However, the DVI interface cannot provide the bandwidth required by large size liquid crystal displays. Therefore, the HDMI interface standard was formulated. In the HDMI interface standard, not only uncompressed video data can be directly transmitted, but also an audio signal can be transmitted at the same time, and can be displayed with the highest resolution. The HDMI interface connector is classified into an A type and a B type according to a difference in plug standards. Since the HDMI interface connector has a small volume, the HDMI interface connector can be applied to many electronic devices, and the usage cost can be reduced.

Please refer to FIG. FIG. 8 is an exploded perspective view showing a conventional electrical connector. As shown in FIG. 8, a tongue plate A <b> 1 protrudes from the front surface of the insulating main body A. Further, a plurality of conductive terminals A2 are respectively provided on both upper and lower surfaces of the tongue plate A1. A metal casing B is coated around the insulating body A. Inside the metal casing B, an insertion groove B1 is formed. The metal casing B and the insulating main body A are provided with a plurality of engaging grooves A3 and protruding engaging portions B2 that are engaged and positioned with each other. On both sides of the metal casing B, grounding legs B3 that are curved and extend outward are provided. Further, each ground leg B3 and the solder connection portion on the rear side of the conductive terminal A2 on the tongue plate A1 are solder-connected on the circuit board, so that an electrical continuity and a ground effect are formed.

When using the above-described electrical connector, first, the plug of the external electrical connector is inserted and connected into the insertion groove B1 of the metal casing B to form electrical contact with the conductive terminal A2 on the tongue plate A1 of the insulating body A. Thereby, signal transmission can be performed. However, in the conventional electrical connector, when the plug of the external electrical connector is inserted to the bottom of the insertion groove B1, the rear side surface of the plug is in direct contact with the front edge portion of the tongue plate A1. At this time, since the length of the tongue plate A1 is long, when the position is restricted only by the fixed support force by engaging the engaging groove A3 of the insulating body A and the protruding engaging portion B2 of the metal casing B, the metal The casing B may be shifted or deformed, and the entire structure may become unstable. Furthermore, if the plug of the external electrical connector is pushed in or the usage method is wrong, the insulation body A is retracted, the structure is damaged, and the electrical contact between the conductive terminal A2 and the external electrical connector is affected. There is a fear.

In addition, since the above-described electrical connector has a structure in which the ground leg B3 of the metal casing B is curved and extended outward, the solder on the circuit board runs along the inner surface of the ground leg B3 when performing solder connection work. It enters the inside of the insertion groove B1, and the solder adhesion area between the grounding leg B3 and the circuit board is reduced, or the bonding force is reduced due to insufficient solder. As a result, when the external electrical connector is inserted or removed, there is a risk that the solder may be peeled off or damaged due to insufficient solder connection strength. Alternatively, after the solder is solidified, it accumulates inside the insertion groove B1, and a situation occurs in which the plug of the external electrical connector is caught or the smooth insertion / removal cannot be performed, and the signal transmission stability is affected. There is a fear. This problem was a problem that would be solved by those engaged in the industry.

In view of the above-mentioned problems and disadvantages of the prior art, the inventor of the present invention collected related materials and made many prototypes and modifications based on many years of experience in the industry. Invented a connector.

JP 2009-76454 A

The first object of the present invention is to provide a stopper surface formed at a position where the base and the rear side of the opposing connection portion are connected when the plug of the external electrical connector is inserted into the insertion groove inside the shield casing. A positioning effect is formed by double prevention by a stopper piece that is provided on the other side away from the insertion groove of the shield casing and forms the same plane as the stopper surface, and on both sides of the shield casing. The fixed support piece is positioned by the fixed support force by supporting the stopper side edge behind the base, so that when the plug of the external electrical connector is pushed in or the usage is wrong, the main body moves backward Effectively prevent damage to the structure, ensure the stability of the entire structure, and improve the electrical contact between multiple terminals of the opposing connection part and the external electrical connector To provide an electrical connector capable.
A second object of the present invention is to provide an electrical connection with a structure in which the solder connection portions extend downward from both side walls of the shield casing, the solder connection portions are curved inward, and the connection legs are located at the bottom of the shield casing. When the connector is soldered on the circuit board, the solder does not enter the shield casing along the inner surface of the connection leg, so that the adhesion area between the contact leg and the metal contact on the circuit board can be increased. In addition, when connecting / disconnecting the plug of the external electrical connector, it can prevent the plug from being caught or being unable to smoothly connect / disconnect, and the connection between the electrical connector and the circuit board and solder connection can be prevented. It is in providing the electrical connector which can raise the intensity | strength of.
The third object of the present invention is that the positioning protrusions on the inner wall surface on both sides of the insertion groove are positioned in contact with the side of the plug of the external electrical connector in the process of inserting and connecting the plug of the external electrical connector. The frictional force generated between the plug of the external electrical connector and the surface of the insertion groove can be reduced, and the plug of the external electrical connector can be stably and reliably inserted, and can be shifted or loosened. There is no electrical connector to provide.

In order to solve the above-mentioned problem, the invention of claim 1 includes a main body and a shield casing, the main body has a base, and an opposed connection portion electrically connected to an external electrical connector in front of the base. A plurality of terminals are positioned on the opposing connection portion, and a stopper surface for blocking the front edge of the plug of the external electrical connector is formed on the connection portion between the base and the rear side of the opposing connection portion. A cutout groove is formed on the surface, the shield casing covers the periphery of the main body, and an insertion groove into which the plug of the external electrical connector is inserted is formed on one side of the shield casing. The electrical connector is characterized in that at least one stopper piece that is flush with the stopper surface and is disposed in the notch groove is provided on the other side portion away from the insertion groove. .

  In the invention of claim 2, a plurality of terminal grooves are provided on the opposing connection portion of the base of the main body, and one side portion of the plurality of terminals is exposed from the terminal groove and electrically connected to the external electrical connector. A contact portion to be connected is formed, and the other side portion of the terminal is provided with a solder connection portion that penetrates to the rear of the base and is soldered and fixed to the circuit board, and a fitting groove is provided on the bottom portion of the base. A partition plate is arranged below the base, and a plurality of through grooves are formed on the partition plate through which the contact portions of one side of the terminal penetrate correspondingly. The electrical connector according to claim 1, further comprising a positioning portion that is fitted and fixed in the fitting groove.

  According to the invention of claim 3, a stopper side edge is provided behind the notch groove of the base of the main body, projecting engagement portions are provided on both sides of the base, and the main body is accommodated inside the shield casing. Positioning projections are provided on both sides of the inner wall surface of the insertion groove adjacent to the shield casing, and positioning protrusions are provided to support the sides of the plug of the external electrical connector. A curved fixed support piece for supporting the side edge is provided, and on both sides of the shield casing, there are provided position regulation grooves for fitting and fixing the projecting engagement portions, respectively, on both side walls of the shield casing. The electrical connector according to claim 1, wherein one or more solder connection portions extend downward, and the solder connection portions are curved inward and have connection legs located at the bottom of the shield casing. Is Kuta.

When the plug of the external electrical connector is inserted into the insertion groove inside the shield casing, the plug is separated from the stopper surface formed at the position where the base and the rear side of the opposed connection portion are connected, and the insertion groove of the shield casing. Positioning effect is formed by double blocking by the stopper piece that is provided on the other side and forms the same plane as the stopper surface, and the fixed support pieces on both sides of the shield casing are the stoppers behind the base By restricting the position by the fixed support force by supporting the side edge, it effectively prevents the body from moving backward and damaging the structure when the plug of the external electrical connector is pushed in or misused In addition, the stability of the entire structure can be ensured, and the electrical contact between the plurality of terminals of the opposing connection portion and the external electrical connector can be enhanced.
Solder connection of the electrical connector on the circuit board is achieved by a structure having connecting legs extending downward from both side walls of the shield casing, curved inward, and having connection legs located at the bottom of the shield casing. When the solder does not enter the shield casing along the inner surface of the connection leg, the adhesion area between the contact leg and the metal contact on the circuit board can be increased, and the plug of the external electrical connector can be When plugging / unplugging, it is possible to prevent the plug from being caught or being unable to be smoothly plugged / unplugged, and the situation can be prevented, and the bonding strength between the electrical connector and the circuit board and the strength of the solder connection can be increased.
In the process of inserting and connecting the plug of the external electrical connector, the positioning protrusions on the inner wall surface on both sides of the insertion groove are positioned in contact with the sides of the plug of the external electrical connector, thereby positioning the plug of the external electrical connector and the insertion groove. The frictional force generated between the surface and the surface can be reduced, and the plug of the external electrical connector can be inserted stably and reliably, and it is not displaced or loosened.

1 is a perspective view illustrating an electrical connector according to an embodiment of the present invention. 1 is an exploded perspective view showing an electrical connector according to an embodiment of the present invention. 1 is an exploded perspective view showing an electrical connector according to an embodiment of the present invention. FIG. 6 is an exploded perspective view showing the electrical connector according to an embodiment of the present invention from another angle. 1 is a side sectional view showing an electrical connector according to an embodiment of the present invention. 1 is a side sectional view showing an electrical connector according to an embodiment of the present invention. It is side surface sectional drawing which shows a state when using the electrical connector by one Embodiment of this invention. It is a disassembled perspective view which shows the conventional electrical connector.

DESCRIPTION OF EMBODIMENTS Embodiments showing the objects, features, and effects of the present invention will be described in detail with reference to the drawings.

Please refer to FIGS. FIG. 1 is a perspective view illustrating an electrical connector according to an embodiment of the present invention. FIG. 2 is an exploded perspective view illustrating an electrical connector according to an embodiment of the present invention. FIG. 3 is an exploded perspective view illustrating an electrical connector according to an embodiment of the present invention. FIG. 4 is an exploded perspective view from another angle showing an electrical connector according to an embodiment of the present invention. As can be seen from FIGS. 1 to 4, an electrical connector according to an embodiment of the present invention includes a main body 1 and a shield casing 2.

The main body 1 has a base 11. In front of the base 11, an opposing connection portion 12 that is electrically connected to the external electrical connector 3 (see FIG. 7) extends. A plurality of terminals 13 are positioned on the opposing connection portion 12. A stopper surface 14 that blocks the front edge of the plug 31 of the external electrical connector 3 is formed at a connection portion between the base 11 and the rear side of the opposing connection portion 12. In the central portion of the stopper surface 14, a notch groove 15 that penetrates the upper portion of the base 11 is opened in the vertical direction. A stopper side edge 151 is provided at a rear portion of the notch groove 15 of the base 11. In addition, a plurality of terminal grooves 121 are provided on both upper and lower surfaces of the opposing connection portion 12. A contact portion 131 exposed to the outside of the terminal groove 121 is provided on one side portion of the plurality of terminals 13. On the other side portion of the terminal 13, a solder connection portion 132 that penetrates to the rear of the base 11 is provided.

The shield casing 2 covers the periphery of the main body 1. A housing space 21 in which the main body 1 is housed is formed inside the shield casing 2. An insertion groove 211 into which the plug 31 of the external electrical connector 3 is inserted is formed on one side of the accommodation space 21. One or one or more supporting elastic pieces 22 are provided on the upper surface portion adjacent to the insertion groove 211 of the shield casing 2. On the other side of the support elastic piece 22 away from the insertion groove 211, at least one stopper piece 23 is provided that is flush with the stopper surface 14 and is disposed in the notch groove 15. Fixing support pieces 24 that are curved in the direction of the accommodation space 21 are oppositely arranged on both side portions behind the stopper piece 23. Further, one or more solder connection portions 25 extending downward are disposed oppositely on both side walls of the shield casing 2. Further, the solder connection portion 25 has a connection leg 251 that is curved inward and located at the bottom of the shield casing 2.

A fitting groove 111 is provided on the bottom of the base 11 of the main body 1 described above. A partition plate 16 is disposed below the base 11. A plurality of through-grooves 161 communicating with the terminal grooves 121 on the opposing connection portion 12 are provided on the partition plate 16. A contact portion 131 on one side of the terminal 13 passes through each through groove 161 correspondingly. On both sides of the through groove 161, stepped positioning portions 162 that are fitted and fixed in the fitting groove 111 are provided. In addition, projecting engagement portions 112 are provided on both sides on the rear side of the base 11. Position restricting grooves 26 to which the protruding engaging portions 112 are fitted and fixed are provided on both sides on the rear side of the shield casing 2. In addition, positioning protrusions 212 that support the side portions of the plug 31 of the external electrical connector 3 are provided on the inner wall surfaces on both sides adjacent to the insertion groove 211 of the shield casing 2.

In addition, the base 11 and the partition plate 16 included in the main body 1 can be formed integrally or separately. As the joint positioning method of the opposing connection portion 12, the partition plate 16, and the plurality of terminals 13, an integral molding method by injecting plastic can be used. Alternatively, the plurality of terminals 13 may be integrally coupled by an assembly method in which the terminals 13 are separately provided in the terminal groove 121 of the opposing connection portion 12 and the through groove 161 of the partition plate 16.

When assembling the electrical connector according to the present embodiment, first, the shield casing 2 is covered around the main body 1. Further, the protruding engaging portions 112 on both sides of the base 11 are fitted and fixed in the corresponding position restricting grooves 26 at the rear of the shield casing 2. When the base 11 is completely pushed into the shield casing 2, the stopper piece 23 provided on the other side portion away from the insertion groove 211 of the shield casing 2 is flush with the stopper surface 14 on the rear side of the opposed connection portion 12. It arrange | positions in the notch groove 15 so that it may form. Further, since the fixed support pieces 24 on both side portions behind the stopper piece 23 are curved downward in the direction of the accommodation space 21, the side of the fixed support piece 24 supports the stopper side edge 151. Thereby, the opposing connection part 12 extended ahead of the base 11 is stably positioned in the insertion groove 211. Further, a socket that conforms to the Mini USB A / B Type or HDMI interface standard can be configured by the plurality of terminals 13 combined with the opposing connection portion 12 on the base 11 and the insertion groove 211 of the shield casing 2. . The electrical connector of the present invention is assembled by the above-described steps.

Please refer to FIG. 2 and FIGS. FIG. 2 is an exploded perspective view illustrating an electrical connector according to an embodiment of the present invention. FIG. 4 is an exploded perspective view from another angle showing an electrical connector according to an embodiment of the present invention. FIG. 5 is a side sectional view showing an electrical connector according to an embodiment of the present invention. FIG. 6 is a side sectional view showing an electrical connector according to an embodiment of the present invention. FIG. 7 is a side cross-sectional view showing a state when using the electrical connector according to the embodiment of the present invention. As can be seen from FIGS. 2 and 4 to 7, when using the electrical connector of the present invention, first, solder connection portions 25 extending downward from both side walls of the shield casing 2 are positioned on the circuit board, and solder connection is performed. A connecting leg 251 that curves and extends to the inside of the portion 25 is bonded to a metal contact on the circuit board. Next, a surface connection technique (SMT) is used to make an electrical connection by soldering. Due to the structure in which the connecting leg 251 that is curved inside the solder connecting portion 25 is located at the bottom of the shield casing 2, the solder on the circuit board enters the accommodating space 21 along the inner surface of the connecting leg 251 when soldering. There is nothing. As a result, the adhesion area between the connection leg 251 and the corresponding metal contact on the circuit board can be increased, so that it is possible to prevent the solder from being insufficient, and the coupling force between the shield casing 2 and the circuit board. In addition, the strength of solder connection can be increased. Thereby, when the external electrical connector 3 is inserted and connected, it is possible to prevent the solder from being peeled off or damaged due to insufficient solder connection strength. Furthermore, it is possible to prevent a situation in which solder accumulates in the accommodation space 21 and the plug 31 of the external electrical connector 3 is caught or a smooth insertion / removal cannot be performed.

When the plug 31 of the external electrical connector 3 is inserted into the insertion groove 211 of the shield casing 2, the stopper surface 14 at the portion where the base 11 is connected to the rear side of the opposing connection portion 12 is inserted into the plug 31 of the external electrical connector 3. Block the leading edge of the connection (not shown). At the same time, since the stopper piece 23 of the shield casing 2 arranged in the notch groove 15 forms the same plane as the stopper surface 14, the stopper surface 14 of the base 11 and the stopper piece 23 of the shield casing 2 are The plug 31 of the external electrical connector 3 is double blocked and a positioning effect is formed. Further, since the position of the fixed support pieces 24 on both sides of the shield casing 2 is restricted by the fixed support force when supporting the stopper side edge 151 on the rear side of the base 11, the plug 31 of the external electrical connector 3 is pushed in or used. It is possible to effectively prevent the main body 1 from being retracted and damaged when it is mistaken. Furthermore, it is possible to effectively prevent the shield casing 2 from shifting or deforming when the base 11 is pressed, and to ensure the stability and reliability of the entire structure.

In the process of inserting the plug 31 of the external electrical connector 3 into the insertion groove 211 of the shield casing 2, the positioning projections 212 on both sides of the inner wall surface of the insertion groove 211 support the side portions of the plug 31 of the external electrical connector 3. By doing so, the positioning effect by point contact is formed. Accordingly, the frictional force generated between the plug 31 of the external electrical connector 3 and the surface of the insertion groove 211 can be reduced, and the insertion connection of the plug 31 of the external electrical connector 3 can be stably and reliably performed. Or can be made difficult to loosen. Further, after the plug 31 of the external electrical connector 3 is completely inserted into the insertion groove 211, the support elastic piece 22 on the upper surface portion in the shield casing 2 is engaged in the corresponding engagement hole on the plug 31. . In addition, since a good electrical contact state is formed between the contact portion 131 on one side of the plurality of terminals 13 on the opposing connection portion 12 and the conductive terminals of the external electrical connector 3, external electrical The connector 3 can be connected to an electronic device for signal transmission. Furthermore, since the electromagnetic interference generated around the electrical connector and the noise signal on the circuit board are released by being guided to the grounding end by the shield casing 2, a grounding effect is obtained.

The above description shows a preferred embodiment of the present invention, and does not limit the scope of the utility model registration request of the present invention. In addition, simple modifications and changes in structure that are equivalent effects without departing from the spirit of the present invention are all included in the scope of the present invention.

The electrical connector of the present invention can reliably achieve its effects and purposes, and the present invention is a device with excellent practicality.

DESCRIPTION OF SYMBOLS 1 Main body 11 Base 111 Insertion groove 112 Protruding engagement part 12 Opposing connection part 121 Terminal groove 13 Terminal 131 Contact part 132 Solder connection part 14 Stopper surface 15 Notch groove 151 Stopper side edge 16 Separator plate 161 Through-groove 162 Positioning part 2 Shield casing 21 Housing space 211 Insertion groove 212 Positioning projection 22 Support elastic piece 23 Stopper piece 24 Fixed support piece 25 Solder connection portion 251 Connection leg 26 Position restriction groove 3 External electrical connector 31 Plug A Insulation body A1 Tongue plate A2 Conductive terminal A3 Engagement groove B Metal casing B1 Insertion groove B2 Protruding engagement part B3 Grounding leg

Claims (3)

A main body and a shield casing;
The main body has a base, and an opposing connection portion electrically connected to an external electrical connector extends in front of the base, and a plurality of terminals are positioned on the opposing connection portion, and the base A stopper surface that blocks a front edge of the plug of the external electrical connector is formed on a connection portion between the opposite connection portion and the rear side of the opposing connection portion, and a notch groove is formed on the stopper surface.
The shield casing covers the outer periphery of the main body, and an insertion groove into which the plug of the external electrical connector is inserted is formed on one side of the shield casing, and is separated from the insertion groove of the shield casing. An electrical connector, wherein the other side portion is provided with at least one stopper piece that forms the same plane as the stopper surface and is disposed in the notch groove. A plurality of terminal grooves are provided on the opposing connection portion of the base of the main body, and one side portion of the plurality of terminals is exposed from the terminal groove and is electrically connected to the external electrical connector. A contact portion is formed, and the other side portion of the terminal is provided with a solder connection portion that penetrates to the rear of the base and is soldered and fixed to the circuit board, and a fitting groove is provided in the base bottom portion. ,
A partition plate is disposed below the base, and a plurality of through grooves are provided on the partition plate so that a contact portion on one side of the terminal penetrates correspondingly. The electrical connector according to claim 1, wherein positioning portions that are fitted and fixed in the fitting grooves are provided on both sides. A stopper side edge is provided behind the cutout groove of the base of the main body, and a projecting engagement portion is provided on each side of the base,
A housing space for housing the main body is formed inside the shield casing, and positioning protrusions for supporting the side of the plug of the external electrical connector on both sides of the inner wall surface adjacent to the insertion groove of the shield casing. A curved fixed support piece for supporting the stopper side edge is provided on both side portions behind the stopper piece, and the projecting engagement portion is fitted and fixed on both sides of the shield casing. Position control grooves are provided, and one or more solder connection portions extend downward on both side walls of the shield casing, the solder connection portions are curved inward, and the bottom of the shield casing The electrical connector according to claim 1, further comprising a connection leg located at the position.

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