TW202141859A - Electrical connector which contains a spacer to increase structural strength of the tongue plate during long time plugging and unplugging - Google Patents

Abstract

The present invention relates to an electrical connector, which includes an insulating base body, a terminal set and a housing, wherein one side of the base of the insulating base body is extended with a tongue plate, and the inside of the insulating base body is combined with a plurality of terminals and spacers of the terminal set. One side of the base of the terminal extends with a butting end integrated in the tongue plate, and the upper and lower side surfaces of the butting end are formed with abutting surfaces exposed to the upper and lower side surfaces of the tongue plate, the other side of the base extends downwards with at least one connection end. The spacer is provided therein with at least one through hole for the insertion of a plurality of terminals, and the insulating base body and the outer cover of the terminal set are covered with a housing. Because the spacer of the terminal set is formed inside the tongue plate of the insulating base body, the structural strength of the tongue plate can be improved through the spacer, which can reduce the breakage of the tongue plate during long time plugging and unplugging, thereby increasing the overall service life.

Description

Electrical connector

The present invention provides an electrical connector, especially a spacer of a terminal group is formed inside the tongue of an insulating base body, and the structural strength of the tongue can be improved through the spacer, so as to reduce the long-term insertion and removal of the tongue. The occurrence of breakage can increase the overall service life.

According to the fact that electronic technology is growing at a rapid pace, the computer type has evolved from a desktop computer to a smaller and portable notebook computer, and it is widespread in all corners of the society. When users want to transmit data or When connecting with other peripheral devices, the peripheral device interface is required. Generally, the peripheral device interface on the market is the most common and widely used by the general public. The universal serial bus (USB) is still the mainstream, and it can be supported by USB. The hot-swappable function is plug-and-play, making it easier to use.

Moreover, USB3.0 has become the most popular mainstream connection interface at present, and is fully used in various external electronic products, such as external hard drives, solid state drives (SSD), multimedia audio-visual players, etc., while USB faces For other high-speed interface challenges, the USB3.1 Type-C specification was introduced, which is mainly slightly larger in size than the existing USB2.0 Micro-B, and supports higher power charging and power supply capabilities, and the transmission speed can be as high as 10Gbps. , It can support front and back plugging in use, so that users no longer need to distinguish front and back, and can be expanded to be suitable for thin and light tablets, smart phones, notebook computers, etc. It is a mobile device that is particularly popular in the market.

However, most of the Type-C electrical connectors currently on the market are connected to the circuit board, which can be used for the plug operation of another relative type of electrical connector to form an electrical connection, and the other relative type of electrical connector The connector can transmit the signal or power to the control circuit through the circuit board, and the insulating base of the Type-C socket connector has a tongue extending from the side of the base, and most of the tongue is Equipped with multiple terminals. When plugged in with another opposite type of plug connector, its tongue is affected by the force of plugging or collision, and it is easy to lift up or shake left and right. As time accumulates, its tongue And the connection between the base and the tongue plate is prone to bend or even break, so that the overall structure of the insulating base body is quite unstable, and the bending of the tongue plate will easily deform the plural terminals assembled on the top , Resulting in poor signal or lack of interruption.

Therefore, how to try to solve the above-mentioned deficiencies and inconveniences of conventional use is the direction that relevant industries engaged in this industry urgently want to study and improve.

Therefore, in view of the above-mentioned deficiencies, the inventor collected relevant information, and through multiple evaluations and considerations, he designed the patentee for the invention of this electrical connector.

The first object of the present invention is that the insulating base has a base, and a tongue plate extends on one side of the base, and a plurality of terminals and spacers of the terminal group are combined in the insulating base, wherein the terminal is connected to The base in the base, and on one side of the base, there is extended a butting end integrated into the tongue plate, and the upper and lower sides of the butting end are formed with abutting surfaces exposed on the tongue plate and the lower two sides, and then on the other side of the base At least one connecting end for electrical connection with the preset circuit board is extended downward, and the spacer is provided with at least one through hole for inserting a plurality of terminals, and the insulation The housing and the terminal set are covered with a shell. Because the spacers of the terminal set are made of metal and are formed inside the tongue of the insulating base, they can pass through during the process of docking with the external electrical connector Spacers are used to increase the structural strength of the tongue plate, so as to reduce the breakage of the tongue plate during long-term plugging and unplugging, thereby achieving the purpose of improving the overall service life.

The second object of the present invention is that the mating end directly uses the mating surfaces of the upper and lower sides to form electrical contact with the preset electrical connector for power transmission, which can increase the current passing time through multiple terminals The cross-sectional area allows larger currents to pass through, thereby achieving the purpose of being able to load large currents.

The third object of the present invention is that when the tongue of the insulating base extends into the mating space of the external electrical connector to form a butt, the elastic buckle arms on the left and right sides of the mating space are buckled into the left side of the spacer. , There is a buckle positioning in the buckle groove on the two right sides. Because the spacer is made of metal material, when the inner wall of the buckle groove and the elastic buckle arm are buckled by friction, the two sides of the tongue plate made of plastic can be avoided It has been plugged and unplugged many times to cause structural damage, thereby achieving the purpose of increasing the service life.

The fourth object of the present invention is that when the insulating seat body is injected into the mold of the plural terminals of the terminal group, the insulating seat body will be filled in at least one of the gaps of the mating end and the front end of the slot, so that the plural terminals and the insulating seat can be lifted The bonding strength between the bodies, thereby achieving the purpose of increasing the pull-out resistance.

The fifth objective of the present invention is that the contact arm of the spacer is in contact with the top surface of the housing space of the housing, so a ground loop is formed, which can improve the path and density of ground conduction, so as to achieve the reliable signal transmission. The purpose of the electromagnetic waves and crosstalk interference generated is exported.

The sixth object of the present invention lies in the upper and lower ends of the butting end of the plural terminals The surface is formed with an arc-shaped or inclined guide surface, which can increase the bonding with the tongue plate of the insulating base through the guide surface, and when the external electrical connector has a plurality of conductive terminals and a plurality of grounding terminals When touching the butting end of the plural terminals, the butting end will use the guide surfaces on the upper and lower sides to guide the plural conductive terminals and the plural grounding terminals to the butting surfaces on the upper and lower sides to achieve improved butt connection The purpose of fluency in use.

1: Insulating seat body

11: Pedestal

111: buttonhole

112: Positioning column

12: Tongue plate

121: Groove

2: terminal group

21: Terminal

211: Base

212: Butt End

2121: Butt

2122: Piercing

2123: missing hole

2124: card slot

2125: Guide Surface

213: connecting end

214: fixed end

22: Spacer

221: Through Hole

222: buckle slot

223: Contact Arm

224: positioning end

225: Binding End

3: shell

30: accommodating space

301: open

31: clasp

32: pin

[Figure 1] is a perspective view of the present invention.

[Figure 2] is a perspective exploded view of the present invention.

[Figure 3] is a perspective exploded view of the present invention from another perspective.

[Figure 4] is a perspective view of the terminal set of the present invention.

[Figure 5] is a perspective view of the terminal set of the present invention from another perspective.

[Figure 6] is a three-dimensional external view of the insulating base body and the terminal set of the present invention after being combined.

[Figure 7] is another perspective view of the external appearance of the insulating base body and the terminal set of the present invention after being combined.

[Figure 8] is a side cross-sectional view of the present invention.

In order to achieve the above-mentioned purposes and effects, the technical means and structure adopted by the present invention are illustrated in detail below with regard to the preferred embodiments of the present invention, so as to fully understand the features and functions.

Please refer to Figures 1, 2, 3, 4, 5, 6, 7, and 8, which are the three-dimensional exterior view, the three-dimensional exploded view, the three-dimensional exploded view from another perspective, the three-dimensional exterior view of the terminal set, Another perspective view of the three-dimensional appearance of the terminal set, the stand after the insulative base and the terminal set are combined The external appearance of the body, the three-dimensional appearance of the insulating base body and the terminal group after the combination of another view and the side sectional view, it can be clearly seen from the figure that the present invention includes an insulating base body 1, a terminal group 2 and a housing 3. ,in:

The insulating base body 1 has a base 11, and a plurality of button holes 111 are provided on the surface of the base 11, and a plurality of positioning posts 112 are protruding from the bottom surface of the base 11, and a tongue plate is extended on one side of the base 11 12, and the tongue plate 12 is provided with grooves 121 on the left and right sides.

The terminal set 2 includes a plurality of terminals 21 and a spacer 22 formed integrally with a metal material. The terminal 21 has a base 211, and a mating end 212 extends from one side of the base 211, and the mating end 212 has upper and lower sides A mating surface 2121 is formed, and the mating end 212 of the two opposite outer terminals 21 is provided with at least one through hole 2122 inside, and the other mating end 212 is provided with at least one notch 2123 inside, and a card is recessed at the front end of the plurality of mating ends 212 The groove 2124, and the upper and lower end surfaces of the opening of the slot 2124 are formed with arc-shaped or inclined guide surfaces 2125, and at least one connecting end 213 extends downward on the other side of the base 211, and two opposite outer terminals 21 The base 211 of the base 211 is provided with a fixed end 214 that is bent and extended outward relative to the mating end 212 and the connecting end 213, and the spacer 22 is provided with at least one through hole 221 through which the plurality of terminals 21 can be inserted. A buckle groove 222 is recessed on the left and right sides of the spacer 22, and a contact arm 223 is provided on the top surface of the rear side of the spacer 22, and at least one positioning end 224 is extended on the bottom surface of the rear side of the spacer 22. The left and right sides of the sheet 22 are bent and extended with a joint end 225.

The hollow interior of the housing 3 is formed with an accommodating space 30, and an opening 301 is provided on one side of the accommodating space 30, and a plurality of clasps 31 are provided on the top surface of the accommodating space 30, and then facing toward the bottom surface of the housing 3 A plurality of pins 32 extend downward.

The plurality of terminals 21 of the terminal set 2 preferably has six terminals 21, which may include four power terminals 21 in the middle and two ground terminals 21 on the outside.

When the present invention is actually assembled, the plurality of terminals 21 and spacers 22 of the terminal set 2 can be integrally formed by insert molding inside the insulating base body 1, and the base portion 211 of the plurality of terminals 21 is combined Inside the base 11 of the insulating base 1, and the mating end 212 of the plurality of terminals 21 extends to the tongue 12 of the insulating base 1, and is perpendicular to the tongue 12, and the mating end 212 is The mating surfaces 2121 on the lower two sides are respectively exposed on the surface of the tongue plate 12, and the connecting end 213 of the plurality of terminals 21 penetrates below the base 11, and the fixed end 214 of the plurality of terminals 21 is positioned transversely to the base 11 In addition, the spacer 22 is combined with the tongue plate 12 of the insulating base body 1, so that the plurality of terminals 21 are separately arranged in the plurality of through holes 221 of the spacer 22, and the spacer 22 is two left and right The side buckle groove 222 is exposed at the groove 121 of the tongue plate 12. At this time, the contact arm 223 of the spacer 22 extends to the upper and outer sides of the base 11, and at the same time, the plurality of spacers 22 at the bottom surface The positioning end 224 penetrates below the base 11, and the two joint ends 225 of the spacer 22 are positioned laterally inside the base 11, and the terminal set 2 can be used after the insulating base 1 is indeed formed The accommodating space 30 of the housing 3 accommodates the insulating base 1 and the terminal set 2, so that the plurality of clasps 31 of the housing 3 are buckled into the plurality of clasp holes 111 on the top surface of the insulating base 1 to form a position, and The contact arm 223 of the spacer 22 is in contact with the top surface of the accommodating space 30 of the housing 3, thereby completing the electrical connection in the form of a universal serial bus Type-C socket through the insulating base 1, the terminal set 2 and the housing 3 Device.

The above-mentioned terminal set 2 is preferably implemented as in-mold injection using plastic (Ins ert Molding). The insulating base body 1 is separately covered by injection molding. However, in actual application, this is not a limitation. The multiple terminals 21 and spacers 22 of the terminal set 2 can also be designed according to actual needs or structure. Differently, it is combined and positioned with the insulating base body 1 in the manner of in-mold injection and integral molding or assembly.

Furthermore, when the plurality of terminals 21 of the above-mentioned terminal set 2 are injected into the insulating base body 1 in the mold, the insulating base body 1 will be filled in at least one of the gaps 2123 and the slot 2124 of the mating end 212, so as to lift the plurality of terminals 21 and The bonding strength between the insulating bases 1 can further increase the pull-out resistance.

When the present invention is actually used, the present invention can be combined on a preset circuit board (not shown in the figure). The base 11 and the housing 3 of the insulating base 1 are multiple positioning posts that can penetrate the bottom surface. 112 and the plurality of pins 32 are set to be located in the plurality of holes corresponding to the preset circuit board, and the terminal set 2 can be used through holes to weld the connecting ends 213 of the plurality of terminals 21 to the external circuit board. In the welding hole, the plurality of positioning ends 224 of the spacer 22 can also be positioned in the fixing hole of the external circuit board by welding, so that the present invention can be stably fixed on the external circuit board without shaking, and When the present invention is mated with a relative type of external electrical connector (such as a Type-C plug type electrical connector; not shown in the figure), the housing space 30 of the housing 3 can be accessed through the opening 301 on one side The external electrical connector is inserted so that the tongue 12 of the insulating base body 1 extends into the mating space of the external electrical connector. At the same time, the elastic buckle arms at the left and right sides of the mating space are buckled into the spacer 22. The buckle grooves 222 on the left and right sides present a buckling position. At this time, the butting ends 212 of the plurality of terminals 21 can use the butting surfaces 2121 of the upper and lower sides to connect with the upper and lower sides of the mating space. A plurality of conductive terminals and a plurality of grounding terminals form electrical contact to For power transmission and formation of a ground loop, the spacer 22 of the terminal set 2 is made of metal material and is formed inside the tongue plate 12 of the insulating base 1, so in the process of docking with the external electrical connector, The structural strength of the tongue plate 12 is improved through the spacer 22, so as to reduce the breakage of the tongue plate 12 during long-term insertion and unplugging, thereby increasing the overall service life.

The connecting ends 213 of the plurality of terminals 21 can preferably be welded in the soldering holes of the external circuit board through a through hole, but in practical applications, surface mount technology (SMT) can also be used to connect to the external circuit The plates form electrical connections, so all structures and devices that can achieve the aforementioned effects should be covered by the present invention. Such simple modifications and equivalent structural changes should be included in the scope of the patent of the present invention for the same reason. bright.

Furthermore, when the tongue 12 of the insulating base body 1 extends into the mating space of the external electrical connector to form a mating, the elastic clasp arms on the left and right sides of the mating space are snapped into the left and right spacers 22. The buckle groove 222 on the two sides presents a buckle positioning. Because the spacer 22 is made of metal material, when the inner wall surface of the buckle groove 222 and the elastic buckle arm are buckled by friction, the tongue plate 12 made of plastic can be avoided. The side has been plugged and unplugged many times to produce structural damage, thereby achieving the effect of increasing the service life.

In addition, the mating ends 212 of the plurality of terminals 21 use the mating surfaces 2121 of the upper and lower sides to form electrical contact with the plurality of conductive terminals, which can increase the cross-sectional area when the current passes, thereby allowing a larger current to pass. It achieves the effect of being able to load large currents, thereby avoiding the problems of short circuit or arc jumping, and because only a single terminal 21 is needed, the effect of forming electrical contacts at the same time can be achieved, thereby reducing mold opening manufacturing costs.

However, when the above-mentioned external electrical connector is used for power transmission, the contact arm 223 of the spacer 22 is in contact with the top surface of the housing space 30 of the housing 3, so it forms The ground loop can increase the path and density of ground conduction, so that the electromagnetic wave and crosstalk interference generated during signal transmission can be exported.

In addition, the upper and lower end surfaces of the mating end 212 of the plurality of terminals 21 are formed with arc-shaped or inclined guide surfaces 2125. The guide surface 2125 can be used to increase the distance between the tongue plate 12 of the insulating base body 1 and the Combination, and when the plurality of conductive terminals and the plurality of ground terminals of the external electrical connector contact the mating end 212 of the plurality of terminals 21, the mating end 212 will use the upper and lower guide surfaces 2125 to connect the plurality of conductive terminals And a plurality of grounding terminals are guided to the upper and lower mating surfaces 2121, which can improve the smoothness of the mating use.

Therefore, the above is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. The insulating base 1 of the present invention has a tongue 12 extending on one side of the base 11 and is attached to the insulating base. A plurality of terminals 21 and spacers 22 of the terminal set 2 are combined in 1, wherein the terminal 21 has a base 211 integrated in the base 11, and a mating end 212 integrated in the tongue plate 12 extends on the side of the base 211, The upper and lower sides of the mating terminal 212 are formed with mating surfaces 2121 exposed on the upper and lower sides of the tongue plate 12, and at least one connecting terminal for electrical connection with an external circuit board is extended downward on the other side of the base 211 213, and the spacer 22 is provided with at least one through hole 221 for the plurality of terminals 21 to be inserted into, and the insulating base 1 and the terminal set 2 are covered with a housing 3, which is because the spacer 22 of the terminal set 2 is It is made of metal material and is formed inside the tongue 12 of the insulating base body 1, so the structural strength of the tongue 12 can be improved, so as to reduce the breakage of the tongue 12 during long-term insertion and removal, thereby improving the overall Service life, so all structures and devices that can achieve the aforementioned effects should be covered by the present invention. Such simple modifications and equivalent structural changes should be included in the scope of the patent of the present invention for the same reason, and shall be stated.

In summary, the electrical connector of the present invention can indeed achieve its effect and purpose when used. Therefore, the present invention is truly an invention with excellent practicability. The review committee granted this case as soon as possible to protect the inventor’s hard work. If the review committee has any doubts, please feel free to write instructions. The inventor will do his best to cooperate with you.

1: Insulating seat body

11: Pedestal

111: buttonhole

112: Positioning column

12: Tongue plate

121: Groove

2: terminal group

21: Terminal

211: Base

212: Butt End

2121: Butt

2122: Piercing

2123: missing hole

2124: card slot

2125: Guide Surface

213: connecting end

214: fixed end

22: Spacer

221: Through Hole

222: buckle slot

223: Contact Arm

224: positioning end

225: Binding End

3: shell

30: accommodating space

301: open

32: pin

Claims (11)

An electrical connector includes an insulating base body, a terminal group and a shell, in which: The insulating base body has a base, and a tongue plate extending into the mating space of the preset electrical connector is extended on one side of the base; The terminal set includes a plurality of terminals combined in an insulating base body and a spacer combined in the tongue plate, wherein the terminal has a base combined in the base, and extends on one side of the base part to be combined in the tongue plate and connected with The tongue plate is a mutually perpendicular butting end, and the upper and lower sides of the butting end are formed with a plurality of conductive terminals exposed on the tongue plate and the lower two sides, and are electrically connected to a plurality of conductive terminals on the upper and lower sides of the predetermined mating space. On the other side of the base, at least one connecting terminal for electrical connection with the preset circuit board is extended downward on the other side of the base, and at least one through hole for at least one terminal is provided in the spacer; The hollow interior of the shell is formed with an accommodating space for the insulating seat body and the terminal group to be placed, and an opening is provided on one side of the accommodating space. The electrical connector described in item 1 of the scope of patent application, wherein the base surface of the insulating base body is provided with a plurality of button holes, and the housing space of the shell is provided with a plurality of buttons on the top surface. For the electrical connector described in item 1 of the scope of patent application, the bottom surface of the base of the insulating base body is protrudingly provided with a plurality of positioning posts positioned on the preset circuit board. The electrical connector described in item 1 of the scope of patent application, wherein the left and right sides of the tongue plate of the insulating base body are provided with grooves, and the left and right sides of the spacer are recessed and exposed on the surface of the grooves On the buckle slot. The electrical connector described in item 1 of the scope of patent application, wherein the two outer terminals At least one perforation is provided inside the butting end. In the electrical connector described in item 1 of the scope of the patent application, the butt end of the at least one terminal is provided with at least one hole for the insulating seat to be filled for positioning. In the electrical connector described in item 1 of the scope of the patent application, the base of the two outer terminals is provided with a fixed end coupled to the base on the opposite side of the mating end and the connecting end. The electrical connector described in item 1 of the scope of patent application, wherein the top surface of the rear side of the spacer of the terminal group is provided with a contact arm contacting the inner wall surface of the housing space of the housing. In the electrical connector described in item 1 of the scope of patent application, at least one positioning end positioned on the predetermined circuit board is extended at the back side of the spacer. According to the electrical connector described in item 1 of the scope of patent application, the left and right sides of the spacer are bent and extended with joint ends connected to the base. The electrical connector described in item 1 of the scope of patent application, wherein the bottom surface of the housing extends downwardly with a plurality of pins positioned on the predetermined circuit board.

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