CN204947250U - Electric connector structure for preventing short circuit - Google Patents

Abstract

The utility model discloses an electrical connector structure for preventing short circuit, comprising an insulating body, a circuit board and a plurality of first insulating protrusions. The insulating body has a seat. The circuit board is arranged on the seat, and the circuit board has a first surface, a second surface and a plurality of first contact portions opposite to each other, wherein each first contact portion is formed on the first surface. Each first insulating protrusion is respectively arranged between any two first contact portions, wherein the first insulating protrusion is higher than each first contact portion. In this way, the electrical connector structure can be prevented from short circuit and protected from damage.

Description

Electrical connector structure to prevent short circuit

technical field

The utility model relates to an electric connector structure, in particular to an electric connector structure capable of preventing short circuit.

Background technique

The existing USB interface has entered the USB3.1 specification. USB3.1 not only increases the transmission capacity of voltage and current, but also improves the coding loss, so that the transmission speed is greatly increased to 10GB per second. In addition, compared with the previous USB2.0 to USB3.0 specifications, the newly released USB Type-C interface structure in USB3.1 has the advantages of front and back plugging, and the size of the USB Type-C interface is smaller than the traditional USB2.0 to USB3 .0 interface.

Due to the narrow space between components in the USB Type-C interface, the conductors in the USB Type-C connector (such as connection terminals, ground plates, and metal shells, etc.) are closer. In addition, the user's plugging method is incorrect, which can easily cause the grounding shrapnel of the male connector to contact the contact terminals of the female connector in advance when the male connector of the USB Type-C interface is plugged into the female connector, resulting in The wrong electrical signal conducted by the female connector causes an electrical short circuit (Short Circuit), which will not only cause damage to the relevant electronic components, but also seriously affect the stability of the electrical connection between the two connectors and the transmission data. Relatively, the service life of the connector is greatly reduced.

Utility model content

In view of this, the main purpose of this utility model is to provide an electrical connector structure that ensures the stability of electrical signal transmission and prevents short-circuits for the special structural requirements of the USB Type-C connector, and avoids the male-female connection of the USB Type-C interface An electrical short circuit occurs when the receptacle is plugged in.

In order to achieve the above object, the technical solution of the utility model is achieved in that:

An electrical connector structure for preventing short circuit, which is used for coupling with a pair of butt plugs with an insertion interface, wherein the inner walls at opposite ends of the insertion interface have a plurality of corresponding grounding shrapnels. The electrical connector structure includes an insulating body, a circuit board and a plurality of first insulating protrusions. The insulating body has a seat. The circuit board is protruded on the seat body, and the circuit board has a first surface, a second surface and a plurality of first contact parts opposite to each other, wherein each first contact part is formed on the first surface. Each of the first insulating protrusions is respectively protruded between any two first contact parts, and is disposed corresponding to each ground elastic piece, wherein the first insulating protrusions are higher than each first contact part.

An electrical connector structure for preventing short circuit, which is used for coupling with a pair of butt plugs with an insertion interface, wherein the inner walls at opposite ends of the insertion interface have a plurality of corresponding grounding shrapnels. The electrical connector structure includes an insulating body, a first row of conductive terminals, a second row of conductive terminals, a plurality of first insulating protrusions and a plurality of second insulating protrusions. The insulating body includes a base and a tongue protruding from the base. The tongue has a first surface and a second surface opposite to each other. Each conductive terminal in the first row has a first contact portion and a first welding portion, and each first contact portion is respectively disposed on the first surface of the tongue plate. Each second row of conductive terminals has a second contact portion and a second welding portion, and each second contact portion is respectively disposed on the second surface of the tongue plate. Each of the first insulating protrusions is respectively protruded between any two first contact parts, and is disposed corresponding to each ground elastic piece, wherein the first insulating protrusions are higher than each first contact part. Each second insulating protrusion is respectively protruded between any two second contact parts, and is disposed corresponding to each ground elastic piece, wherein the second insulating protrusion is higher than each second contact part.

Description of drawings

FIG. 1 is a three-dimensional perspective view illustrating a first preferred embodiment of the present invention.

FIG. 2 is a partially enlarged schematic diagram illustrating the first surface of the circuit board of the present invention.

FIG. 3 is a cross-sectional view illustrating a first preferred embodiment of the present invention.

FIG. 4 is an exploded perspective view showing a first preferred embodiment of the present invention and a mating plug.

FIG. 5 is a front view illustrating the docking plug of the present invention.

FIG. 6 is a schematic cross-sectional view illustrating the first preferred embodiment of the present invention after it is plugged into a mating plug.

FIG. 7 is a three-dimensional perspective view illustrating a second preferred embodiment of the present invention.

FIG. 8 is a schematic cross-sectional view illustrating the second preferred embodiment of the present invention after it is plugged into a mating plug.

[Description of main component symbols]

10 Docking plug 20 Plug interface 30, 50 Ground shrapnel 70 Docking elastic terminal

100 electrical connector structure 110 insulating body 112 seat body 114 tongue plate

116 Assembly port 118 Accommodating space 120 Circuit board 122 First surface

124 second surface 130 first row of conductive terminals 132 first contact portion

134 first welding part 136, 146 differential signal terminal 138, 148 ground terminal

140 second row of conductive terminals 142 second contact part 144 second welding part

150 first insulating convex part 152, 162 conductive part 154, 164 insulating layer

160 second insulating protrusion 200 metal shell 202 positioning part.

detailed description

The structure of the electrical connector for preventing short circuit of the present invention will be further described in detail below in conjunction with the accompanying drawings and the embodiments of the present invention.

As shown in Fig. 1 to Fig. 6, the utility model provides a kind of electrical connector structure 100 that prevents short circuit, is provided with a pair of mating plugs 10 that have a socket 20 to couple, wherein the inner walls of the opposite ends of the socket 20 have corresponding A plurality of grounding elastic pieces 30 , 50 and a plurality of docking elastic terminals 70 . As shown in FIG. 5 , each butt elastic terminal 70 is disposed away from the socket 20 relative to each grounding elastic piece 30 , 50 . The electrical connector structure 100 and the mating plug 10 described herein preferably refer to a male and female electrical connector conforming to the USB Type-C interface.

The electrical connector structure 100 includes an insulating body 110 , a circuit board 120 and a first insulating protrusion 150 . The insulating body 110 has a base body 112 and an assembly opening 116 opened from the base body 112 . The circuit board 120 is assembled at one end of the assembly opening 116 and protrudes from the base 112 . The circuit board 120 has a first surface 122 , a second surface 124 and a plurality of first contact portions 132 opposite to each other, wherein each first contact portion 132 is formed on the first surface 122 . In other words, in an exemplary embodiment, the circuit board 120 is only provided with a plurality of contact portions 122 and at least one insulating protrusion 150 on one surface.

In an exemplary embodiment, the circuit board 120 further includes a plurality of second contact portions 142 formed on the second surface 124 and a second insulating protrusion 160 protruding between any two second contact portions 142 . The second insulating protrusions 160 are disposed corresponding to the grounding elastic pieces 50 , wherein the second insulating protrusions 160 are higher than the second contact portions 142 . However, in this preferred embodiment, the first insulating protruding portion 150 and the second insulating protruding portion 160 respectively include a plurality, and are disposed corresponding to the respective grounding elastic pieces 30 , 50 of the mating plug 10 . Hereinafter, a plurality of first insulating protrusions 150 and a plurality of second insulating protrusions 160 are used for illustration.

As shown in FIGS. 1 and 3 , this embodiment further includes a metal shell 200 , a plurality of first welding portions 134 and a plurality of second welding portions 144 . The metal shell 200 covers the seat body 112 and shields each first contact portion 132 and each second contact portion 142 , so that the electrical connector structure 100 also forms an accommodating space 118 in the circuit board 120 for plugging in with the mating plug 10 . Each first welding portion 134 and each second welding portion 144 protrude out of the metal casing 200 respectively.

Each first soldering portion 134 of this embodiment is preferably vertically connected to one end of the circuit board 120 and electrically coupled to each first contact portion 132 respectively, and each second soldering portion 144 is vertically connected to one end of the circuit board 120 And respectively electrically coupled with each second contact portion 144 . In addition, a plurality of positioning portions 202 are bent on both sides of the metal shell 200 in the same direction as each first welding portion 134 and each second welding portion 144, so as to be fixed or welded on the main board (not shown) or other on the circuit board (not shown).

As shown in FIG. 3 and FIG. 6 , each first insulating protrusion 150 is respectively protruded between any two first contact portions 132 , and is set corresponding to each grounding elastic piece 30 , wherein the first insulating protrusion 150 is higher than each first contact portion 132 . A contact portion 132 . In the embodiment shown in FIG. 2 or FIG. 6, the first insulating protruding portion 150 and the second insulating protruding portion 160 respectively include a conductive portion 152, 162 and an insulating layer 154 disposed on the conductive portion 152, 162, 164.

The conductive parts 152 and 162 of this embodiment are preferably integrally formed with each of the first contact parts 132 and each of the second contact parts 142 , and both have the same height. In addition, the lengths of the first insulating protrusions 150 and the second insulating protrusions 160 are preferably the same or shorter than the lengths of the first contact portions 132 and the second contact portions 142 , which can be changed according to requirements or designs.

The insulating layers 154 and 164 are coated on the conductive parts 152 and 162 with insulating materials such as polyurethane insulating paint (green) or other suitable materials. In addition, the coating height of the insulating layers 154, 164 is about 0.025 to 0.05 millimeters (mm). In other words, each first insulating protruding portion 150 and each second insulating protruding portion 160 are higher than each first contact portion 132 and each second contact portion 142 by about 0.025 to 0.05 millimeters (mm).

Please also refer to FIG. 6 , each first contact portion 132 and each second contact portion 142 respectively include four pairs of differential signal terminals 136 , 146 and four pairs of ground terminals 138 , 148 . Each ground terminal 138 , 148 is respectively disposed between any two pairs of differential signal terminals 136 , 146 . Further, each first insulating protrusion 150 and each second insulating protrusion 160 are respectively formed between each differential signal terminal 136 , 146 and ground terminal 138 , 148 , or between any pair of differential signal terminals 136 , 146 . The numbers of the first insulating protrusions 150 and the second insulating protrusions 160 are substantially changed according to the relative positions and widths of the grounding springs 30 , 50 of the mating plug 10 , and do not limit the scope of the present invention.

When the user inserts or pulls out incorrectly or other factors cause the grounding elastic piece 30 on one side of the docking plug 10 to contact the first contact portions 132 of the electrical connector structure 100 (female end) in advance, due to the various configurations provided in this embodiment The first insulating protruding portion 150 abuts against each ground elastic piece 30 to avoid interference with each pair of differential signal terminals 136 of each first contact portion 132 . Similarly, when the grounding elastic pieces 50 of the docking plug 10 are plugged toward the second insulating protrusions 160 on the other side, since the second insulating protrusions 160 of this embodiment can abut each grounding elastic pieces 50, avoiding contact with each of the second insulating protrusions 160 Each pair of differential signal terminals 146 of the second contact portion 142 interferes. Therefore, it is possible to ensure the stability of the electrical signal transmission of the USB Type C male-female electrical connector and prevent the mating plug 10 from misrecognizing the electrical signal and causing a short circuit, thereby prolonging the life of the electrical connector structure 100 .

As shown in Figures 7 and 8, another broad implementation of the present invention further provides an electrical connector structure 100 for preventing short circuit, including an insulating body 110, a first row of conductive terminals 130, a second row of The conductive terminal 140 , the plurality of first insulating protrusions 150 and the plurality of second insulating protrusions 160 . The insulating body 110 includes a base 112 and a tongue 114 protruding from the base 112 . The tongue 114 has a first surface 122 and a second surface 124 opposite to each other. As shown in the figure, the main difference between this second preferred embodiment and the previous embodiments is that the first row of conductive terminals 130 and a second row of conductive terminals 140 can be assembled or inserted into the insulating body 110 by insert molding. and set corresponding to each other. For the docking plug 10 and other related structures, please refer to the foregoing embodiments, and details are not repeated here.

Each first row of conductive terminals 130 has a first contact portion 132 and a first welding portion 134 , and each first contact portion 132 is respectively disposed on the first surface 122 of the tongue plate 114 . Each second row of conductive terminals 140 has a second contact portion 142 and a second welding portion 144 , and each second contact portion 142 is respectively disposed on the second surface 124 of the tongue plate 114 . Each first insulating protrusion 150 protrudes between any two first contact portions 132 and is disposed corresponding to each ground spring 30 , wherein the first insulating protrusion 150 is higher than each first contact portion 132 . Each second insulating protrusion 160 is protruded between any two second contact portions 142 and is disposed corresponding to each ground spring 50 , wherein the second insulating protrusion 160 is higher than each second contact portion 142 .

This embodiment also includes a metal shell 200, the metal shell 200 covers the seat body 112 and shields each first contact portion 132 and each second contact portion 142, wherein each first contact portion 132 is welded to each first contact portion upright. Each second contact portion 142 is vertically connected to each second welding portion 144 , and each first welding portion 134 and each second welding portion 144 respectively protrude out of the metal shell 200 .

Please also refer to FIG. 8, the first row of conductive terminals 130 and the second row of conductive terminals 140 respectively include four pairs of differential signal terminals 136, 146 and four pairs of ground terminals 138, 148, and each ground terminal 138, 148 is respectively arranged on any Between the two pairs of differential signal terminals 136 , 146 . Each first insulating protrusion 150 and each second insulating protrusion 160 are respectively formed between each differential signal terminal 136 , 146 and ground terminal 138 , 148 , or between any pair of differential signal terminals 136 , 146 .

It should be noted here that each of the first insulating protrusions 150 and each of the second insulating protrusions 160 is preferably integrally formed with the tongue plate 114, and since the material itself is an insulating material, no additional coating is required. Insulation. Therefore, the forming height of each first insulating protruding portion 150 and each second insulating protruding portion 160 is about 0.025 to 0.05 mm higher than that of each first contact portion 132 and each second contact portion 142 . For the detailed structures of the first insulating protrusions 150 and the second insulating protrusions 160 , please refer to the foregoing embodiments, and details are not repeated here.

When the user plugs the mating plug 10 into and out of the electrical connector structure 100 of this embodiment, since the grounding springs 30 can abut against the first insulating protrusions 150, the contact with each pair of differential signal terminals 136 of each first contact portion 132 is avoided. conflict. Therefore, it is possible to ensure the stability of the electrical signal transmission of the USB Type C male-female electrical connector and prevent the mating plug 10 from misrecognizing the electrical signal and causing a short circuit, thereby prolonging the life of the electrical connector structure 100 .

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model.

Claims (10)

1. prevent an electric connector structure for short circuit, couple for the banjo offering an interface, it is characterized in that, wherein the inwall of this interface opposite end has corresponding multiple grounding elastic parts respectively, and this electric connector structure comprises:

One insulating body, has a pedestal;

One circuit board, is arranged at this pedestal, and this circuit board has a relative first surface, a second surface and multiple first contact site, and wherein respectively this first contact site forms in this first surface; And

One first insulation protuberance, is convexly equipped between any two this first contact site, and to arranging by grounding elastic part, and wherein this first insulation protuberance to insulate protuberance higher than each this first contact site second.

2. electric connector structure as claimed in claim 1, it is characterized in that, wherein this circuit board also comprises multiple second contact site forming in this second surface and the one second insulation protuberance be convexly equipped between any two second contact sites, this the second insulation protuberance is to arranging by grounding elastic part, wherein this second insulation protuberance is higher than each this second contact site, and this first insulation protuberance and this second insulation protuberance comprise a conductive part respectively and be arranged at the insulating barrier on this conductive part.

3. electric connector structure as claimed in claim 2, it is characterized in that, also comprise a metal shell, multiple first weld part and multiple second weld part, this metal shell this pedestal coated also covers respectively this first contact site and respectively this second contact site, and respectively this first weld part and each this second weld part protrude from outside this metal shell respectively.

4. electric connector structure as claimed in claim 3, it is characterized in that, wherein respectively this first weld part erectly connect this circuit board one end and respectively with each this first contact site electric property coupling, respectively this second weld part erectly connect this circuit board one end and respectively with each this second contact site electric property coupling.

5. electric connector structure as claimed in claim 2, it is characterized in that, wherein respectively this first contact site and respectively this second contact site comprise four pairs of difference signal terminals and four earth terminals respectively, respectively this earth terminal is arranged at wantonly two respectively between this difference signal terminal.

6. electric connector structure as claimed in claim 5, it is characterized in that, wherein this first insulation protuberance and this second insulation protuberance comprise multiple respectively, and are formed separately between each this difference signal terminal and this earth terminal, or arbitrary between this difference signal terminal.

7. prevent an electric connector structure for short circuit, couple for the banjo offering an interface, it is characterized in that, wherein the inwall of this interface opposite end has corresponding multiple grounding elastic parts respectively, and this electric connector structure comprises:

One insulating body, comprise a pedestal and be convexly equipped in a hyoplastron of this pedestal, this hyoplastron has a relative first surface and a second surface;

One first row conducting terminal, respectively this first row conducting terminal has one first contact site and one first weld part, and respectively this first contact site is arranged at this first surface of this hyoplastron respectively;

One second row conducting terminal, respectively this second row conducting terminal has one second contact site and one second weld part, and respectively this second contact site is arranged at this second surface of this hyoplastron respectively;

Multiple first insulation protuberance, respectively this first insulation protuberance is convexly equipped between any two first contact sites respectively, and correspondence respectively this grounding elastic part arrange, wherein respectively this first insulation protuberance higher than each this first contact site; And

Multiple second insulation protuberance, respectively this second insulation protuberance is convexly equipped between any two second contact sites respectively, and correspondence respectively this grounding elastic part arrange, wherein respectively this second insulation protuberance higher than each this second contact site.

8. electric connector structure as claimed in claim 7, it is characterized in that, also comprise a metal shell, this metal shell this pedestal coated also covers respectively this first contact site and respectively this second contact site, wherein respectively this first contact site is erectly connected with each this first weld part, respectively this second contact site is erectly connected with each this second weld part, and respectively this first weld part and each this second weld part protrude from outside this metal shell respectively.

9. electric connector structure as claimed in claim 7, is characterized in that, wherein this first row conducting terminal and this second row conducting terminal are to assemble or insert molding mode is arranged on this insulating body, and the setting that corresponds to each other.

10. electric connector structure as claimed in claim 7, it is characterized in that, wherein this first row conducting terminal and this second row conducting terminal comprise four pairs of difference signal terminals and four earth terminals respectively, respectively this earth terminal is arranged at wantonly two respectively between this difference signal terminal, respectively this first insulation protuberance and respectively this second insulation protuberance form in respectively respectively between this difference signal terminal and this earth terminal, or arbitrary between this difference signal terminal.